音叉说明书
德国P+F 音叉式开关使用说明书
27
10 ... 55 V DC, PNP, 3-线 , V1-连接器 • LVL-S1-G3O-E5V1-NA, 抛光克音叉 表 面, Ra < 1.5 mm • LVL-S1-T5O-E5V1-NA, 抛光音叉表面 1½", 过 程连接三夹具, Ra < 1.5 mm 所有以上型号都有螺纹１ＮＰＴ型。
30 41
19
1 NPT
120 ... 126 mm ~99 mm
最大 . 150 ˚C/25 bar 最大 . 100 ˚C/40 bar
过程连接 Ｎ３ ＝ １ ＮＰＴ
~30 41 19
128
最大 . 150 ˚C/25 bar 最大 . 100 ˚C/40 bar
过程连接 Ｇ３ ＝ Ｇ１Ａ
安装附件：焊接适配器（不带音叉校正）带ＦＰＭ Ｏ环 （氟化橡校）LVL-Z61
技术参数 型号
LVL –S1 –
– E 5 V 1 –NA
认证 NA 无认证 特性 V1 连接器 M12 x 1; V1 电气输出 E5 10 V DC ... 55 V DC, PNP, 3-线 音叉表面 S 标准表面 , Ra < 3.2 mm O 抛光型 , Ra < 1.5 mm G 高抛光型 , Ra < 0.5 mm 过程连接 S1 齐平安 装 ，用于焊接适, 1.4571 G3 螺 纹 G1 BSP, 1.4571 M7 DN50 卫生耦合 器 DIN 1185, 1.4571 T6 三夹具 2" ISO 2852, 1.4571 T5 三夹具 1½" ISO 2852, 1.4571
VEGASWING音叉开关操作说明书
1 安全提示1.1 被授权的仪表操作人员处于安全考虑，在这本说明书中所介绍的各种操作，需要经过培训和授权的技术人员来完成。
1.2 应用VEGASWING用于位式检测液体介质。
1.3 使用错误的警示如果应用不正确或不符合规定，从应用角度讲，由于安装或调试错误，容器会溢出介质或损坏设备。
1.4 安全介绍在安装和操作仪表的时候，需要注意有关的安全规定（比如：在德国需要符合VDE-规定）。
1.5 CE – 认证VEGASWING系列经过CE认证，满足NAMUR-要求NE21。
CE-认证根据以下标准：• EMVG：- Emission EN 61326:1997(A级)- Immission EN 61326:1997/A1:1998• NSR: EN 61010-1: 20011.6 符合SILVEGASWING符合功能安全的要求，符合IEC61508/IEC61511。
1.7 防爆应用的注意事项对于防爆应用，要注意防爆安全规定。
每个防爆仪表都会随附防爆合格证，要注意防爆参数。
1.8 环保事项环境保护现在已经成为最为紧要的任务。
因此VEGA公司也建立了完善的环保管理体系，且获得EN ISO14001认证。
请您帮助我们，完成环保的使命，见以下两章：• “仓储和运输”• “清除废料”2 产品介绍2.1 构造供货范围• 音叉式位式检测仪表VEGASWING• 文件资料- 此操作说明书- 您订购的各类相应的许可证，比如：如果您购买的是防爆型的仪表，随附防爆许可证组件VEGASWING60系列由以下组件组成：• 仪表罩盖• 外壳带电子部件，可选带插头连接• 过程连接和音叉1 外壳罩盖2 外壳，带电子部件3 过程连接VEGASWING51系列由以下组件组成：• 外壳带电子部件• 过程连接和音叉2.2 工作原理应用范围VEGASWING用于位式检测液体物位。
典型的的应用是溢出保护和防止空转。
音叉最短只有40mm，因此可以安装到最细DN25的管道上。
音叉密度计说明书（精品pdf）
DMF-1-CR 插入式密度计第一部分 介绍 (3)1.DMF-1-CR介绍 (3)2.适用范围 (3)3. 工作原理 (3)4. 特点 (4)5.技术参数 (4)第二部分 机械安装 (5)1.概述 (5)2.流速的计算 (5)3.安装定位 (5)3.1概述 (5)3.2典型安装方式示意图 (6)3.3试用转 (8)第三部分 电气安装 (8)1.介绍 (8)第四部分 注意事项 (9)第五部分密度计操作说明 (10)第六部分 仪表选型指南 (13)第一部分 介绍1.DMF-1-CR介绍DMF-1-CR插入式密度计采用插入式安装，广泛适用于管路，开阔的罐体容器和封闭的罐体容器中的介质密度检测。
流体密度直接取决于传感器插入介质中音叉收到的振动频率。
传感器内置温度传感器为其提供温度补偿。
2.适用范围DMF-1-CR插入式密度计可实时在线的进行密度检测。
它可以运用于以密度为基本参数产品的过程控制或者以固体百分比或浓度百分比为参照质量控制中。
典型行业包括，石油化工行业，酿酒业，食品行业，制药行业和矿物加工（如粘土，碳酸盐、硅酸盐等），具体应用于以上行业中的多产品管道中的界面检测，搅拌混合物的密度检测，反应釜终点监测，离析器界面检测。
3. 工作原理传感器基于元器件振动原理工作，元器件部分为浸入被测液体中的音叉部分。
音叉部分通过内在的固定于叉体底部一端的压电设备感应振动。
震荡频率由固定于叉体另一端的二次压电设备来检测，然后通过顶部的电路放大信号。
液体密度和被测液体流动时的震动频率密切相关，当被测液体密度变化时，液体流动时的振动频率也随之改变。
通过以下方程，被测液体的密度可以被精确的计算出来。
D= K0+K1T+K2T2D=未校准的被测介质密度(kg/m3)T=振动频率(μs).K0、K1、K2=常量在密度检测过程中，DMF-1-CR插入式密度计可以自动补偿温度对被测介质密度（D）的影响，压力对密度没有显著的影响。
振动式音叉说明书Tuning fork
Kunpeng Fork level switchOperation ManualThank you for your choosing our product! Beforeoperation, please read this “Operation Manual”carefully to ensure normal operation of instrument.2 Compact type fork level switchBrief introduction to productBased on the tuning fork vibration technology, this fork levelswitch has been equipped with durable stainless steel bodyand fork so that it can be used in various kinds of fields. The3/4” or 1” economic type level switch can be fixed onto pipelineor storage tank through screw mounting, or installed onto thefood industrial facility through sanitation fastenings. In addition,the direct load switch adapts to any power supply or PNP output,also can be used as the direct interface of PLC.Product features◆ Away from the influence including water flow 、onflow 、bubble 、foam 、vibration 、solid content 、coating and liquidfeatures completely.◆ Less installation process steps without indication of positions◆ Insensitive response to polarity with short-circuit protection function◆Standard plug/socket fastenings available◆With immovable parts or gap, free-maintenance can be acquired completely◆All the information about electric components、self-check and state monitoring can be finished through LEDdisplay◆The magnetic test points make the function test easier◆Compacted design make the outline be small and exquisite◆Quicker response to viscous liquid due to its “Dripple” design◆Sanitation fasteningsMeasuring PrincipleBased on the tuning fork vibration principle, this level switch adopts piezoelectric crystal to vibrate the fork by fixed frequency of tuning fork, also the frequency variation can be monitored continuously. When used for low level alarm, the liquid in container flows down and through the tuning fork to cause the variation of natural frequency, this frequency variation can be captured by electric component so that the output mode can be switched into another one. When used for high-level alarm, the liquid inside container goes up and vibrate the tuning fork so the output mode can be changed again.3Short fork technologySelect the natural frequency (about 1300Hz) of tuning fork so that the interference which can cause faulty action of switch can be avoided effectively. The shorter fork can extend into container, thus, this product can adapt to all liquid variety, abundant researches have established stable base for high working efficiency so that this product can adapt to any kind of liquid including painting liquid、inflatable liquid and serous fluid.Special functionsLED DisplayWith LED display, it is available to carry out observation through the window of shell. When under “CLOSE” mode, the LCD display will flicker continuously (one time per 0.5s), while under “OPEN” mode, the LCD display will be on all the time.Magnetic test pointsDistributed at the side of shell, the operator can carry out function test through these test points. When one magnetic block touches the test point, the output will be changed.Electric connectionFor a quick connection, adopt standard DIN 43650 plug/socket, in addition, insensitive polarity and short-circuit protection can make the electric connection easily and safely.4Fork design“Dripple” design (drop from the end of fork) can make the test speed quicker, specially for high viscosity liquid, the scnsitivity becomes higher.5Application exampleOverflow preventionWhen in the course of loading, the overflow material will cause harm to human body andenvironment as well as production loss and cleaning cost, so this instrument is consideredas a crucial limit switch which can offer overflow signal at any time.Pump protectionThe length of short fork inserting wet side is shortest and can be fixed onto pipeline andcontainer at any angle so that the installation cost can be reduced effectively. Because theextending length of fork is 2 inch only (50mm), it is available to install this instrument ontominorcaliber pipe. If combined with direct-load switch, this instrument can become an idealchoice for the reliable control of pump, also away from dry running of pump.Top and lowest level alarmBecause this instrument can works continuously under 302°F（150℃）temperature and1045 psig (100barg) pressure due to its hard and durable shell, so this product is an ideal oneused to detect the top and lowest of different storage tank. Generally, a separated level alarmswitch is equipped so that an extra standby switch can be provided when failure emerges.6Leakage detectFor flange、gasket、seal ring, there may be leakage when exposed to severe environment likecorrosive liquid. Most of the storage tank and container are installed onto base plate or insideprotection body in case the liquid leakage emerges. This instrument can be used to find out theleakage point quickly and accurately so that the detecting cost can be reduced obviously.Pump controlFor many processes, equipped batch process and elevated storage tank, so a control to pumpbecomes very important to make the liquid level at specified range. Generally, these storagetanks are made of thinner material so that it can not be used to bear heavier instruments.Sanitation applicationDue to its higher surface smooth finish(Ra) which can be more than 0.8 μm, this instrument canmeet the requirements of food and medicine manufacturing. In addition, this instrument is made ofstainless steel so that it has a good durability, thus, it can be used under 302°F（150℃）hightemperature steam cleaning (CIP).7Application and installationInstallation precautions◆Before installation, check if the liquid temp and pressure are at the specified range (see technical specification) ◆Check if the viscosity of liquid is at the recommended range: 0.2 to 10000 cP◆The products with high viscosity include chocolate syrup、tomato catsup、peanut paste and asphalt.Even though these things have a high viscosity, the instrument still can carry out detection, but the discharging time is very long.◆Check if the density of liquid is more than 37.5 lbs./feet3 (600kg/m3).◆the things with low density include acet.、pentane and hexane◆Check if the fork is at the risk of material accumulation◆away from the conditions like accumulation of dry and coated things◆ensure that the fork is away from lapping (joint) caused by high density things◆the things which can cause the lapping of forks include:thickened pulp and asphalt(um)◆Check if there is solid material contained inside the liquid◆If an agglomeration phenomenon emerges, this will cause serious problem.◆ T he max. solid particle shall be within 0.2”(5mm)◆When used in the liquid with over 0.2”(5mm) solid particle, a special consideration shall be took into account,also you may contact the manufacture for solution.◆Foam◆ Generally, this instrument is insensitive to foam, so there is nothing to the test result by foam.◆But, for some individual case, the thickened foam is used as a carrier, for example, in the process of8manufacturing of ice cream, the foam influence shall be took into account.Recommended installation◆ Before installation, turn the switch to “ON” position◆ For high liquid level, turn on “Dry” button◆ For low liquid level, turn on “Wet” button◆It is strongly suggested that the magnetic test points should beused to detect the system all the time when at debugging course.◆Around the instrument, a sufficient space should be left so thatthe installation and electric connection can be implemented (seedimensional drawing for details)◆ Do not install the instrument onto the position where is close to theinlet of liquid.◆ The tuning fork should be kept away from the large number ofsplashed liquid.◆ Ensure that the tuning fork is not in touch with tank wall or any internal partsor any interfering thing.◆Ensure that the tuning fork can be kept a certain distance with accumulative FIG1:Correct installation drawingmatter on the wall of storage tank.9Technical specificationPhysical characters◆ Product: compacted level switch◆ Measuring principle：based on the vibration of tuning fork◆Application: adapt to most liquids including painting liquid、inflatable liquid and serous fluidMechanical features◆ Material of main parts: 316L stainless steel (1.4404)For the tri-clamp joint, the surface smooth finish can be more than 0.8μm, the material for 1” BSPP(G1) gasket is non-asbestos BS7531 X carbon fiber, and added with rubber adhesive.◆ Shell material: Body of shell: 304 stainless steel with polyester labelLED display window: inflaming retarding vanamid (Pa12) UL94 V2Plug: Daiamid GRPSeal ring: nitrile rubber 122“（50mm）◆ Installation material: 3/4” BSPT (R) or NPT1” BSPT (R) or NPT (G) screw or 2”(21mm) sanitation tri-clamp joint10◆Dimensional drawing: See “dimensional drawing” for details◆Explosive-proof grade: IP66/67, meet the standard EN60529Performance◆ Hysteresis range(water): ±0.039”(±1mm), rated value◆ Switch point (water): the distance to fork end (vertical) andthe edge of fork (horizontal) is 0.5”(13mm), this value will changewith the variation of liquid density.Function features:◆ Max. operating pressure: depend on the fastening of storage tank◆ Screw fastening: see FIG2 for details.◆ Sanitation fastening: 435psig (30barg)◆ Temperature: see FIG3 for details.11◆ Liquid density: Min. 37.5 lbs./foot3(600kg/m3)◆ Liquid viscosity range: 0.2 to 10000cP (centipois)◆ Solid content and painting type: it is recommended that the max. particle of the solid in liquid is 0.2”(5mm)For painting type product, the lapping (joint) of fork should be avoided.◆ Switching delay: 0.3 to 30s◆ CIP (clean in position) clean: available to be exposed to 302°F（150℃）high temperature steam for clean.Functional Characteristics◆ Switch type: toggle switch available, also the user can choose another one.◆ Cable connection: a four-way joint can be used for the connection of cables, this meet the standard DIN43650.the max. size of wire :15AWG, in addition, a four-direction bearing unit has been equipped as well (90/180/270/360°)◆ Wire size: max. 0.06 inch2 (1.5mm2)◆ Cable sealing device: a PG9 device can meet the requirements of 0.24-0.31”(6-8mm)Other components◆ Switch shell: made of durable stainless steel and equipped with a LED display window made of daiamid, besides,a four-way joint has been equipped as well and meet standard DIN43650, also a four-direction bearing unit aswell sealing device of cable are equipped as well.◆ Electric components: a standard double-core cable( which can be connected with 15-28V AC power) can be usedto connect this instrument with load equipment to acquire direct load switch which can be used as single-pole single-throw (SPST) switch. In addition, it can be used as a direct interface for PLC on the base of 24V DC solid12PNP output, at the same time, a relay with large capacity can meet the strong current output which can be up to 5A at most.◆ Fastenings of storage tank and tuning fork: for the wet parts material, they are made of 316 stainless steel, and forfork, it is available to use shorter length or half extending structure. You may see the dimensional drawing for details.◆ Screw connection: Screw 3/4”NPT or BSBT (R) 、1”BSBT(R) or BSPP (G)Material: 316L stainless steel◆ Sanitation fastenings: Fittings 2”(51mm) Tri-clamp joint 、1” BSPP (G)、o-ringMaterial: 316L stainless steelAccessories：when used in a position where has a high requirement for sanitation, aauxiliary piece can be used to match 1”BSPP or 2”(51mm) tri-clamp joint.In addition, at the wet side of tri-clamp joint, the manual smooth finish can bemore than 0.8 μm, so this can meet the requirement of severe sanitationstandard.◆For the dimensional drawing of product, please see the below page for details13Dimensional Drawing14Electric connection diagram15Normal Fork Level SwitchBrief introduction to productBased the vibration of piezoelectric crystal, this instrument can be activated toacquire measuring result. When encounter damping action, the vibration amplitudedecreases sharply, also the frequency and phase position changes obviously,all of these changes will be detected by the electric components inside, thentransferred into switch signal for output after process. Thus, this instrument can beused to carry out high-low level test and control as well as alarm function for storagetank, suitable for various kinds of liquids、powders and particle solid. In addition, due to its high availability and stable performance, this instrument can be almost free to maintenance and adapt to various environments, adopt LED to indicate the working state, generally, there are three input modes including DC24V、AC 110V and AC 220V and many output modes like DC current output、relay contact output and DC voltage output, for all of these modes, a high-low level alarm mode is equipped and available to set the sensitivity of instrument.Product features◆Away from the influence including water flow、onflow、bubble、foam、vibration、solid content、coating and liquidfeatures completely.16◆Less installation process steps without indication of positions◆Insensitive response to polarity with short-circuit protection function◆Standard plug/socket fastenings available◆With immovable parts or gap, free-maintenance can be acquired completely◆LED indicator lamp which can be regulated as required◆Quicker response to viscous liquid due to its “Dripple” design◆Sanitation fasteningsMeasuring principleBased on the fork vibration theory, this instrument is designed as a level switch which makes use of the piezoelectric crystal to vibrate the fork by the natural frequency of fork, in addition, the frequency variation can be monitored continuously. When used for lower alarm application, the liquid in container flows down and through the tuning fork to cause the variation of natural frequency, this frequency variation can be captured by electric component so that the output mode can be switched into another one. When used for high-level alarm, the liquid inside container goes up and vibrate the tuning fork so the output mode can be changed again.Technical parameters※Medium temp: -20~80℃※Ambient temp:-20~60℃※Ambient humidity: ≤95%17※Medium type: liquid、powder or particle solid※Medium density: Solid ≥0.1g/cm3Liquid≥0.7g/cm3※Solid particle size:≤10mm※Max. liquid viscosity:<1000mm2/s※Medium angle of repose:≥200※Pressure range: ≤ 1MPa※Shell material: Die-casting aluminum※Fork material:1Cr18Ni9Ti※Degrees of protection provided by enclosures:IP65※Connection mode: G1 1/2 screwFlange（option）※Electric parameters1. Power supply: DC24V, AC220V 50Hz2. Output signal: relay output 5A 220V AC3A 24V DC※Power consumption: ≤2W18※Fork vibration frequency:300±50Hz※Ambient vibration grade: V.L.4,less than 1g accelerated velocity※Switching signal response time:1-60sElectric connectionThe wire connection for instrument is shown as follows, the connection terminal with POWER is used to connect with power supply (AC 220V or DC 24V), No.3,4,5 are the output terminals of relay.Red light--------Indicate the output mode of relayGreen light--------Indicate the fork modeDebugging-------when the LIMIT ELECTED is under L sector, the red light is on, at the same time, if the fork is19vibrating ,the green light will be on as well. In addition, the terminal 3and 4 should be under normal close mode, while terminal 3 and 5 should be under normal open mode. When use your hand touch the fork, the fork stops vibrating and the green light is off, the relay contact turn around, conversely, the terminal 3 and 4 will be under normal open mode , and the terminal 3,5 will be under normal close mode; lastly, regulate the action delay time at the range 1~60s.If the LIMIT SELECTED is under H sector, the red light will be off, at the same time, the fork vibrates and the green light is on; the terminal 3 and 4 is under normal open mode, while the terminal 3 and 5 is under normal close mode, when touch the fork, the fork stops vibrating and the green light is off; at the same time, the contact of relay turn around, conversely, the terminal 3 and 4 become normal open, while the terminal 3 and 5 become normal open, lastly, regulate the delay time at the range of 1~60s.Generally, just select the LIMIT SELECTED at L sector to select the output terminals of relay so that the upper and low limit alarm can be acquired.Sensitivity regulation: this regulation should be done according to the density of medium, the lower density, the higher sensitivity. After regulation, press RST for confirm, generally, H sector is reasonable.After the state indicator light has been selected, carry out connection as description, and turn on the power supply after checked to be correct. Next, use your hand to touch the fork to check if the indicator light change the state, when pull out the hand, the indicator light will resume immediately. Repeat this operation several times to confirm it can work normally before put into use.Installation method1. Generally, this instrument should be installed vertically with downward fork end, also horizontal or inclinedinstallation is acceptable (if the adhesivity of material is high, it is suggested that the fork should be installed vertically downward)2. The installation mode with the upward fork is forbidden203. For the material with lumpy or hard particles, it is suggested that the fork should be installed vertically orslantingly.4. Before installation, it is suggested that a small quantity should be sampled to test the sensitivity of instrument. Forexample: immerse the instrument into a container with medium to test its reliability.5. When in the course of actual installation, there are various installation modes including top installation, side wallinstallation and pipe installation as shown in the following FIG:21Points for attention1. Away from the restricting to the vibration of fork due to material agglomeration.2. When installed at the position with scar, a enough space shall be left between the fork and tank wall3. For the instrument used for liquid level monitoring, the test point should be selected as the actual height.4. For low viscosity liquid, the liquid can flow through the fork smooth, so it is available to carry out installation at anyposition as above FIG.5. For high viscosity, it is difficult that the medium can flow through the fork, so it is suggested that the fork endshould go downward and vertically for installation6. For the instrument used for material level monitoring, the installation position of vertical cylinder or similar notonly depends on the height of material level, but also take into account the angle of repose as well as the feeding position. When under horizontal installation, the fork end should be placed at inner wall by 1/3 radius of container, and the two forks pieces should be put into the same plane. When under vertical installation mode, the distance between the installation center and inner wall of container should be 1/3 radius of container. In addition, the installation position should be away from the direct impact and splash of material medium as much as possible in case cause fault actions or wearing; if failed to avoid the impact or splash of material, a protection eaves should be installed at the installation position of instrument, the length of eaves should be longer than the actual one of instrument.22WARNING!When install or operate, do not hold the fork piece of instrument or knock in case cause deformation of fork piece, even cause damage to internal electric components.Dimensional DrawingScrew InstallationPopular type Extension type23Flange InstallationPopular type Extension type24。
SF300(N)智能音叉开关说明书
保存并退出 长按中间向上⬆按键 6 秒， 或者点击 SET 键
不保存直接退出： 20 秒不操作后自动退出 点击➡不保存退出。
音叉在线分析仪
5 外形结构与安装注意事项
叉体伸出长度 短叉体 标准型长叉体 加长型长叉体
50mm 128mm 128~1600mm
上海锟鹏传感工程有限公司
上海锟鹏 计量与测控专家
21
网址：
音叉在线分析仪
上海锟鹏传感工程有限公司
上海锟鹏 计量与测控专家
22
菜单模式
⬇ 点击 键
翻动菜单
⬇ 点击⬆键
修改模式
⬇ 点击⬆键或➡键
修改数字或移动光标
⬇ 点击 键
保存数据
⬇ 长按 键 秒
回到运行模式
上海锟鹏线分析仪
上海锟鹏传感工程有限公司
用户菜单表 Loc=132
菜单名
参数内容
Loc
密码锁
网址：
音叉在线分析仪
上海锟鹏传感工程有限公司
确保液体处于规定的温度和压力范围之内。
安装时，不得用手抓握叉股或敲击叉股，以免叉体受力变形，甚至损坏内部压电晶体。
安装时，不允许仰装方式，即叉端向上方式。
水平安装时，两个叉股必须处于同一高度，不能一上一下。
仪表安装位置，必须尽量避免物料的直接冲击或飞溅。如无法避免，可以在仪表安装 上方，安装防护罩，防止物料冲击叉体。
7.5 报警延时设定
本功能只在开关量输出（参数 out=0）时有效，频率输出(out=1)时无效。
小音叉说明书样本
u 检查液体的粘度是否处于推荐范围 0.2 至 10000cp。
Ø
具有较高粘度的实例产品包括：巧克力糖浆、调味番茄酱、花生酱和沥青。
开关仍能检测这些产品但排放时将将会很长。
u 检查液体的密度是否大于 37.5 磅/英尺³（600kg/m³）。
Ø
具有较低密度的实例产品包括：丙酮、戊烷和已烷。
u 检查音叉是否存在产品聚集的风险。
二、产品特点
u 运行真正受免流动、湍流、气泡、泡沫、振动、固体含量、涂覆、液体特性以及产品变化的影响 u 不需要标定而且所需要的安装工序最少 u 极性不敏感而且有短路保护功能 u 采用工业标准的插头/插座连接件 u 无活动零件或缝隙真正实现免维护 u 电子元件、自检和状态监控-LED 显示状态信息和完好信息 u 磁性测试点为功能测试提供方便 u 紧凑型设计使外形小巧且重量较轻 u “快速低落”的音叉设计对于粘性液体具有更换的响应时间 u 卫生连接件。
u 泡沫
Ø
在几乎所有的情况下，该产品对泡沫不敏感（不用考虑泡沫）。
Ø
然而，在极个别情况下，特别浓的泡沫将被当做液体。例如，在冰淇凌和橙汁制造过程中可出现
这种情况。
九、推荐安装
u 安装时保证开关时常处于正常的“打开（on）”状态。
Ø
对于高液位，于（Dry）打开。
Ø
对于低液位，湿（Wet）打开。
u 应始终确保在调试过程中使用本机磁性试点对系统进行调试。
一、产品简介
本产品是一种基于振动短音叉技术的液点液位开关。它是一种紧凑开关，配备耐用的不锈钢本体和音叉， 可用于各种液体应用场合。3/4”货 1”经济型液位开关通过螺纹安装与 管道或储罐上，或者通过卫生连接件 安装于食品工业设施。直接负荷开关适用于所有电源或 PNP 输出，用作与可编程逻辑控制器（PLC）的直 接接口。提供防止溢出认证，仅适用于安全区域。
音叉开关FTL50
TI328F/00/enTechnical InformationLiquiphant M FTL50(H), FTL51(H)Vibration Limit SwitchLevel limit switch for all liquids.Suitable for use in hazardous areas, food and pharmaceuticalsApplicationThe Liquiphant M is a level limit switch for use in all liquids–for temperatures of –40 °C to 150 °C (–50 °C to 150 °C on request)–for pressures up to 64 bar–for viscosity up to 10000 mm 2/s–for densities 0.5 g/cm 3 or 0.7 g/cm 3 other settings available on request–foam detection on requestThe function is not affected by flow, turbulence, bubbles, foam, vibration, bulk solids content or build-up. The Liquiphant is thus the ideal substitute for float switches.FTL50:Compact design, ideal for mounting in pipes and for installation in areas difficult to access FTL51:With extension pipe up to 3 m (6 m on request)FTL50H, FTL51H:With polished tuning fork and easy-to-clean process connections and housings for food and pharmaceutical applications.High corrosion-resistant Alloy C4 (2.4610) is available for the fork and process connections for applications in very aggressive liquids.EEx ia, EEx de and EEx d protection enable it to be used in hazardous areas.Your benefits•Use in safety systems requiring functional safety to SIL2 in accordance with IEC 61508/IEC 61511-1•Large number of process connections to choose from: universal usage•Wide variety of electronics, e.g. NAMUR, relay,thyristor, PFM signal output: the right connection for every process control system •PROFIBUS PA protocol:for commissioning and maintenance •No calibration: quick, low-cost start-up•No mechanically moving parts: no maintenance, no wear, long operating life•Monitoring of fork for damage: guaranteed function •FDA approved materials (PFA Edlon)Liquiphant M FTL50(H), FTL51(H)2Endress+HauserTable of contentsApplication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4Level limit detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Function and system design. . . . . . . . . . . . . . . . . . . . .4Measuring principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Modularity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Electronic versions for level limit switches . . . . . . . . . . . . . . . . . . 5Electronic versions for level sensor . . . . . . . . . . . . . . . . . . . . . . . . 5Galvanic isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5Measured variable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Measuring range (detection range) . . . . . . . . . . . . . . . . . . . . . . . . 5Product density . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Electronic insert AC, FEL51 . . . . . . . . . . . . . . . . . . . .6Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Connectable load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Electronics AC, FEL51 in compact housing . . . . . . . . .7Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Connectable load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Electronic insert DC PNP, FEL52. . . . . . . . . . . . . . . . .8Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Connectable load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Electronics DC PNP, FEL52 in compact housing . . . . .9Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Connectable load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Electronic insert AC/DC with relay output,FEL54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Connectable load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Electronic insert 8/16 mA, FEL55. . . . . . . . . . . . . . .12Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Connectable load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Electronic insert NAMUR L-H edge, FEL56. . . . . . . .13Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Connectable load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Electronic insert NAMUR H-L edge, FEL58. . . . . . . .14Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Connectable load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Electronics NAMUR H-L edge, FEL58in compact housing . . . . . . . . . . . . . . . . . . . . . . . . . .15Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Connectable load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Electronic insert PFM, FEL57 . . . . . . . . . . . . . . . . . .16Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Connectable load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Electronic insert PROFIBUS PA, FEL50A. . . . . . . . . .18Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Connection and function . . . . . . . . . . . . . . . . . . . . . .20Connecting cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Fail-safe mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Switching time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Switch-on behaviour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Performance characteristics. . . . . . . . . . . . . . . . . . . .20Reference operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . 20Maximum measured error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Repeatability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Hysteresis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Influence of medium temperature . . . . . . . . . . . . . . . . . . . . . . . 20Influence of product density . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Influence of medium pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 20Operating conditions. . . . . . . . . . . . . . . . . . . . . . . . .21Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21Installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Examples of mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23Ambient temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Ambient temperature limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Liquiphant M FTL50(H), FTL51(H) Storage temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Climate class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Degree of protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Vibration resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Electromagnetic compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . 24Medium conditions . . . . . . . . . . . . . . . . . . . . . . . . . . 24Medium temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Thermal shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Medium pressure pe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Test pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24State of aggregation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Density . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Viscosity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Solids content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Mechanical construction . . . . . . . . . . . . . . . . . . . . . . 25Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Dimensions (in mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Process connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Human interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Electronic inserts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Compact housings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32Operating concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Certificates and approvals. . . . . . . . . . . . . . . . . . . . . 35General approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Other certificates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Combination of housings and electronic inserts . . . . . . . . . . . . . 35Ordering information . . . . . . . . . . . . . . . . . . . . . . . . 37Product structure Liquiphant MFTL50. FTL51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Product structure Liquiphant MFTL50H, FTL51H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44Welding boss G ¾ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44Welding boss G 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44Welding boss G 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44Welding neck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44DRD welding flange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45Lap joint flange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45Lap joint flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45Sliding sleeves for unpressurised operation . . . . . . . . . . . . . . . . . 46High pressure sliding sleeves . . . . . . . . . . . . . . . . . . . . . . . . . . . 46Cover with sight glass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Cover with sight glass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Circular Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Supplementary Documentation. . . . . . . . . . . . . . . . . 47KA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47BA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48TI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48SD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48XA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49SI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 493Endress+HauserLiquiphant M FTL50(H), FTL51(H)4Endress+HauserApplicationLevel limit detectionMaximum or minimum detection in tanks or pipes containing all kinds of liquids, including use in hazardous areas, food and pharmaceuticalsFunction and system designMeasuring principleThe sensor's fork vibrates at its intrinsic frequency.This frequency is reduced when covered with liquid. The change in frequency then activates a limit switch.ModularityLevel limit switchLiquiphant M FTL with electronic versions FEL51, FEL52, FEL54L00-FTL5xxxx-15-05-xx-xx-000Level sensorLiquiphant M FTL with electronic versions FEL55, FEL56, FEL57, FEL58for connecting to a separate switching unit or or an isolating amplifier FEL50Afor connecting to PROFIBUS PA segmentLiquiphant M FTL50(H), FTL51(H)Endress+Hauser 5Electronic versions for level limit switchesFEL51:Two-wire AC version;Switch the load directly into the power supply circuit via the thyristor.FEL52:Three-wire DC version;Switch the load via the transistor (PNP) and separate connection.FEL54:Universal current version with relay output;Switch the loads via 2 floating change-over contacts.Electronic versions for level sensor FEL55:For separate switching unit; signal transmission 16/8 mA along two-wire cabling.FEL56:For separate switching unit; signal transmission L-H edge 0.6…1.0 / 2.2…2.8 mA to EN 50227 (NAMUR) along two-wire cabling.FEL58:For separate switching unit; signal transmission H-L edge 2.2…3.5 / 0.6…1.0 mA to EN 50227 (NAMUR) along two-wire cabling.Checking of connecting cabling and other devices by pressing a key on the electronic insert.FEL57:For separate switching unit; PFM signal transmission;Current pulses superposed on the power supply along the two-wire cabling. Cyclical checking from the switching unit without changing levels.FEL50A:For connecting to PROFIBUS PA;Cyclic and acyclic data exchange acc. to PROFIBUS PA Profile 3.0 Discrete InputGalvanic isolationFEL51, FEL52, FEL50A:Between sensor and power supply FEL54:Between sensor and power supply and load FEL55, FEL56, FEL57, FEL58: See Switching unit connectedDesignFTL50: CompactFTL51:With extension pipeFTL50H:Compact, with polished tuning fork and hygienic process connections FTL51H:With extension pipe, polished tuning fork and hygienic process connectionsInputMeasured variable Level (limit value)Measuring range (detection range)FTL50:Depends on mounting point.FTL51:Depends on mounting point and the pipe extension. Standard 3000 mmm (up to 6000 mm on request)Product densityAdjustment on the electronic insert > 0.5 g/cm 3 or > 0.7 g/cm 3 (other on request)Liquiphant M FTL50(H), FTL51(H)6Endress+HauserElectronic insert AC, FEL51Electrical connectionTwo-wire AC connection Output signalSignal on alarm Output signal on power failure or in the event of damaged sensor: < 3.8 mAConnectable load•Permitted for relay with a holding power/rated power > 2.5 VA for 253 V (10 mA), min. 0.5 VA for 24 V (20 mA);•Relays with a lower holding power/rated power can be operated by means of an RC module connected in parallel (option).•Load switched directly into the power supply circuit via the thyristor.Transient (40 ms) max. 1.5 A, max. 375 VA at 253 V or max. 36 VA at 24 V (Not short-circuit proof);Continuous max. 89 VA at 253 V, max. 8.4 VA at 24 V;Voltage drop across FEL51 max. 12 V;Residual current with blocked thyristor max. 3.8 mA.Overvoltage protection FEL51: overvoltage category IIIAlways connect in series with a load!Check the following:•The residual current in blocked state (up to 3.8 mA)•that for low voltage–the voltage drop across the load is such that the minimum terminal voltage at the electronic insert (19 V) when blocked is not undershot.–the voltage drop across the electronics when switched through is observed (up to 12 V)•that a relay cannot de-energise with holding power below 3.8 mA.If this is the case, a resistor should be connected parallel to the relay.(RC module available on request).•When selecting the relay, pay attention to the holding power/rated power (See "Connectable load")IL< 3.8 mA xx-xx-000= load current(switched through)= residual current(blocked)= lit = unlitLiquiphant M FTL50(H), FTL51(H)Endress+Hauser 7Electronics AC, FEL51 in compact housingElectrical connectionTwo-wire AC connection Output signalSignal on alarm Output signal on power failure or in the event of damaged sensor: < 3.8 mAConnectable load•Permitted for relay with a holding power/rated power > 2.5 VA for 253 V (10 mA), min. 0.5 VA for 24 V (20 mA);•Relays with a lower holding power/rated power can be operated by means of an RC module connected in parallel (option).•Load switched directly into the power supply circuit via the thyristor.Transient (40 ms) max. 1.5 A, max. 375 VA at 253 V or max. 36 VA at 24 V (Short-circuit proof);Continuous max. 89 VA at 253 V, max. 8.4 VA at 24 V;Voltage drop across FEL51 max. 12 V;Residual current with blocked thyristor max. 3.8 mA.Overvoltage protection FEL51: overvoltage category IIIAlways connect in series with a load!Check the following:•The residual current in blocked state (up to 3.8 mA)•that for low voltage–the voltage drop across the load is such that the minimum terminal voltage at the electronic insert (19 V) when blocked is not undershot.–the voltage drop acrossthe electronics when switched through isobserved (up to 12 V).•That a relaycannot de-energise withholding power below 3.8 mA.If this is the case, a resistor should be connected parallel to the relay.(RC module available on request).IL< 3.8 mA xx-xx-000= load current(switched through)= residual current(blocked)= lit = unlitLiquiphant M FTL50(H), FTL51(H)8Endress+HauserElectronic insert DC PNP, FEL52Electrical connectionThree-wire DC connection Output signalSignal on alarm Output signal on power failure or in the event of damaged sensor: < 100 µA Connectable loadLoad switched via the transistor and separate PNP connection.Max. 55 V (pulsed overload and short-circuit protection);Continuous max. 350 mA;Max. 0.5 µF at 55 V, Max. 1.0 µF at 24 V;Residual voltage < 3 V (with transistor switched through);Residual current < 100 µA (with transistor blocked).Power supply10 V…55 V DCRipple max. 1.7 V, 0…400 Hz Current consumption max. 15 mA Power consumption max. 0.83 W Reverse polarity protectionOvervoltage protection FEL52: overvoltage category IIIPreferably used with programmable logic controllers (PLC).DI module as per EN 61131-2.Positive signal at switching output of the electronics (PNP);Output blocked on reaching limit.IL< 100 µA xx-xx-000= load current(switched through)= residual current(blocked)= lit = unlitLiquiphant M FTL50(H), FTL51(H)Endress+Hauser 9Electronics DC PNP, FEL52 in compact housingOutput signal With valve connector or cable tailIL< 100 µA xx-xx-000= load current(switched through)= residual current(blocked)= lit = unlitLiquiphant M FTL50(H), FTL51(H)10Endress+HauserWith M12x1 connector 52010285 (without LEDs)Signal on alarm Output signal on power failure or in the event of damaged sensor: < 100 µAConnectable loadLoad switched via the transistor and separate PNP connection.Max. 55 V (pulsed overload and short-circuit protection);Continuous max. 350 mA;Max. 0.5 µF at 55 V, max. 1.0 µF at 24 V;Residual voltage < 3 V (with transistor switched through);Residual current < 100 µA (with transistor blocked).Power supply10 V…55 V DCRipple max. 1.7 V, 0…400 Hz Current consumption max. 15 mA Power consumption max. 0.83 W Reverse polarity protectionOvervoltage protection FEL52: overvoltage category IIIxx-xx-002IL< 100 µA = load current(switched through)= residual current(blocked)xx-xx-000= lit = unlitElectronic insert AC/DC with relay output, FEL54Electrical connectionUniversal current connection with relay output Output signalSignal on alarm Output signal on power failure or in the event of damaged sensor: relay de-energisedConnectable loadLoads switched via 2 floating change-over contacts.I~ max. 6 A, U~ max. 253 V;P~ max.1500 VA, cos ϕ = 1, P~ max. 750 VA, cos ϕ > 0.7;I– max. 6 A to 30 V, I– max. 0.2 A to 125 V.When connecting a low-voltage circuit with double isolation according to IEC 1010 the following applies:total of voltages of relay output and power supply max. 300 V.Power supply19 V…253 V AC voltage, 50/60 Hz or DC voltage 19 V…55 V Power consumption max. 1.3 W Reverse polarity protectionOvervoltage protection FEL54: overvoltage category IIIPower supply:Please note the different voltage ranges for AC and DC.Output:When connecting an instrument with high inductance, provide a spark arrester to protect the relay contact.A fine-wire fuse (depending on the load connected) protects the relay contact on short-circuiting.Both relay contacts switch simultaneously.*When jumpered, the relay output works with NPN logic.L00-FTL5xxxx-07-05-xx-xx-001= relay energised = relay de-energised = lit = unlitElectronic insert 8/16 mA, FEL55Electrical connectionTwo-wire connection for separate switching unit Output signalSignal on alarm Output signal on power failure or in the event of damaged sensor: < 3.6 mA Connectable loadR = (U - 11 V) : 16.8 mAU = connection DC voltage 11 V…36 VOvervoltage protection FEL55: overvoltage category IIIFor connecting to programmable logic controllers (PLC).AI module 4-20 mA to EN 61131-2.Output signal jump from high to low current on limit.(H-L edge)~ 16 mA ~8 mA xx-xx-000= 16 mA ± 5 %= 8 mA ± 6 %= lit = unlitElectronic insert NAMUR L-H edge, FEL56Electrical connectionTwo-wire connection for separate switching unit Output signalSignal on alarm Output signal in the event of damaged sensor: > 2.2 mAConnectable loadSee Technical Data of isolating amplifier connected according to IEC 60947-5-6 (NAMUR)For connecting to isolating amplifiers acc. to NAMUR (IEC 60947-5-6),e.g. FXN421, FXN422, FTL325N, FTL375N or Commutec SIN100, SIN110 from Endress+Hauser.Output signal jump from low to high current on limit .(L-H edge)Connecting to multiplexer: Set clock time to min. 2 s.L00-FTL5xxxx-07-05-xx-xx-002= lit = flashes = unlitElectronic insert NAMUR H-L edge, FEL58Electrical connectionTwo-wire connection for separate switching unit Output signalSignal on alarm Output signal in the event of damaged sensor: < 1.0 mAConnectable loadSee Technical Data of isolating amplifier connected according to IEC 60947-5-6 (NAMUR). Connection also to isolating amplifiers which have special safety circuits (I > 3.0 mA).For connecting to isolating amplifiers acc. to NAMUR (IEC 60947-5-6), e.g. FXN421, FXN422, FTL325N, FTL375N or Commutec SIN100, SIN110 from Endress+Hauser.Output signal jump from high to low current on limit .(H-L edge)Additional function:Test key on the electronic insert.Pressing the key breaks the connection to the isolating amplifier.!Note!For Ex-d applications, the additional function can only be used if the housing is not exposed to an explosive atmosphere.Connecting to multiplexer:Set clock time to min. 2 s.L00-FTL5xxxx-07-05-xx-xx-002= lit = flashes = unlitElectronics NAMUR H-L edge, FEL58 in compact housingOutput signalSignal on alarm Output signal in the event of damaged sensor: < 1.0 mAConnectable loadSee Technical Data of isolating amplifier connected according to IEC 60947-5-6 (NAMUR). Connection also to isolating amplifiers which have special safety circuits (I > 3.0 mA).L00-FTL5xxxx-07-05-xx-xx-002= lit = flashes = unlitElectronic insert PFM, FEL57Electrical connectionTwo-wire connection for separate switching unit Switching behaviour of the connected device:Please note this switching response and function of the plant, especially when replacing a Liquiphant with an EL17Z or FEL37 electronic insert by a Liquiphant M with the FEL57 electronic insert.For connecting to switching units Nivotester FTL320, FTL325P, FTL370, FTL372, FTL375P (also with cyclical checking)Commutec SIF101, SIN111from Endress+Hauser.Output signal jump of PFM signal from high to low frequency when sensor is covered.Switching between minimum/maximum safety in the Nivotester.Additional function "cyclical checking":After interruption of the power supply,a test cycle is activated which checks the sensor and electronics without any change in level.Approved for overfill protection acc. to WHG, Germany.The following can be switched at the electronic insert:–Standard (STD):for low corrosive liquids; simulation approx. 8 stuning fork exposed – covered – exposed.–Extended (EXT):for highly corrosive liquids;simulation approx. 41 stuning fork exposed – covered – corroded – exposed.The check is activated and monitored at the switching unit.* De-energised on power supply failure。
音叉式开 说明书
56D a t e o f i s s u e03.07.2002音叉式开关外形尺寸特点• 多种过程连接方式：通用• 音叉式过程连接¾"外形尺寸小：用于狭窄的安装空间• 多种电气模块（如，继电器，晶闸管信号输出）：可用于所有过程控制系统• 不需校验：起动快速，低成本• 无机械移动部分：不需维护，无损耗，工作寿命长• 音叉损坏监视：保证功能57D a t e o f i s s u e03.07.2002音叉式开关Vibracon LVL-M技术参数58D a t e o f i s s u e 03.07.2002音叉式开关Vibracon LVL-M技术参考59D a t e o f i s s u e 03.07.2002音叉式开关Vibracon LVL-M技术参数60D a t e o f i s s u e 03.07.2002音叉式开关Vibracon LVL-M 技术参数• 电子插件 FEL 51 (AC)• 电子插件 • 电子插件 电气连接61D a t e o f i s s u e 03.07.2002音叉式开关Vibracon LVL-M技术参数• 电子插件 FEL 55 (SI)电气连接62D a t e o f i s s u e03.07.2002音叉式开关Vibracon LVL-M 技术参数型号L V L –M–––无Ｍ２的长度证书NA 非危险区WH 过 溢保护 WHG EB ¬ II 1/2G, EEx ia IIC T6, 过溢保护ＷＨＧE2¬ II 1/2G, EEx ia IIC T6E3¬ II 1/2G, EEx d IIC T6EC ¬ II 1/2G, EEx d IIC T6, 过溢保护ＷＨＧFI FM IS CI I,II,III Div1 Group A–G FX FM XP CI I,II,III Div1 Group A–G CI CSA IS CI I,II,III Div1 Group A–G CG CSA 一般用途CX CSA XP CI I,II,III Div1 Group A–G可选设备NA 无可选设备Z3 3.1.B 材料 , 湿部件 1.4435, 检查证书EN 10204 符 合 52005759电子插件AC FEL 51, ２ 线开关, 19 V AC ... 253 V AC E5 FEL 52, PNP 3- 线 , 10 V DC ... 55 V DC WA FEL 54, 电 势可转换触点, DPDT, 19 V AC ... 253 V AC, 19 V DC ... 55 V DC SI FEL 55, 8/16 mA, 11 V DC ... 36 V DC外壳，电缆入口A1 铝外壳， IP66, 电缆密封套 M20A2 铝外壳, NEMA 4X, ¾ NPT A4 铝外壳, IP66, 连接器 M12 x 1E1 不锈钢外壳 (1.4301/304L), IP66, 电缆密封套 M20E2 不锈钢外壳 (1.4301/304L), NEMA 4X, ½ NPT E4 不锈钢外壳 (1.4301/304L), IP66, 连接器 M12 x 1P1 塑料外壳 , IP66, 电缆密封套 M20P2 塑料外壳 , NEMA 4X, ½ NPT P4 塑料外壳 , IP66, 连接器 M12 x 1过程连接和材料M1 AA 紧凑型 , Ra < 3.2 m m/80 grit M1 IA 66 mm/2.6" 带 温度隔离器M1 QA 66 mm/2.6" 带温度隔离器M2 BB mm L 1.4435/316L, Ra < 3.2 m m M2 BE mm L 合金 C4/2.4610, Ra < 3.2 m m M2 CB inch L 1.4435/316L, Ra < 3.2 m m M2 CE inch L 合金 C4/2.4610, Ra < 3.2 m mM2 DB 长度型I I, 1.4435/316L, Ra < 3.2 m m, 开关点＝Ｖａｒｉｋｏｎｔ紧凑型M2 DE 长度型I I, 合金 C4/2.4610, Ra < 3.2 m m, 开关点＝Ｖａｒｉｋｏｎｔ紧凑型M2 JB mm L 1.4435/316L, 带温度隔离器M2 JE mm L 合金 C4/2.4610, 带温度隔离器M2 KB inch L 1.4435/316L, 带温度隔离器M2 KE inch L 合金 C4/2.4610, 带温度隔离器M2 LB 长度型I I, 1.4435/316L, 带温度隔离器M2 LE 长度型I I, Alloy C4/2.4610, 带温度隔离器 , 开关点 ＝紧凑型M2 RB mm L 1.4435/316L, 带温度隔离器M2 RE mm L 合金 C4/2.4610, 带紧压套管M2 SB inch L 1.4435/316L, 带紧压套管M2 SE inch L 合金 C4/2.4610, 带紧压套管M2 TB 长度直型I I, 1.4435/316L, 带紧压套管 , 开关点＝紧凑型M2 TE 长度直型I I, Alloy C4/2.4610,带紧压套管 , 开关点 = 紧凑型过程连接和材料A31ANSI 1" 150 lbs RF, 1.4435/316L A41ANSI 1¼" 150 lbs RF, 1.4435/316L A51ANSI 1½" 150 lbs RF, 1.4435/316L A61ANSI 2" 150 lbs RF, 1.4435/316L A6C ANSI 2" 150 lbs RF, 合金 C4 镀铂A81ANSI 3" 150 lbs RF, 1.4435/316L Design M2F55DN32 PN40 Form B, 1.4435/316L F65DN40 PN40 Form B, 1.4435/316L F75DN50 PN40 Form B, 1.4435/316L F85DN65 PN40 Form B, 1.4435/316L F95DN80 PN40 Form B, 1.4435/316L FA5DN100 PN40 Form B, 1.4435/316L D51 DN32 PN6 Form C, 1.4435/316L, 密封条C51 DN32 PN6 Form C, 合金 C4/2.4610 镀铂D71 DN50 PN6 Form C, 1.4435/316L, 密封条C71 DN50 PN6 Form C, 合金 C4/2.4610 镀铂D95 DN80 PN40 Form C, 1.4435/316L, 密封条C95 DN80 PN40 Form C, 合金 C4/2.4610 镀铂DA3 DN100 PN16 Form C, 1.4435/316L, 密封条CA3 DN100 PN16 Form C, 合金 C4/2.4610 镀铂N21¾ NPT, 1.4435/316L N2C ¾ NPT, 合金 C4/2.4610N31 1 NPT, 1.4435/316L N3C 1 NPT, 合金 C4/2.4610G21G¾ BSP , 1.4435/316L G2C G¾ BSP , 合金 C4/2.4610G31G1 BSP , 1.4435/316L G3C G1 BSP , 合金 C4/2.4610G3E G1 BSP , 1.4435/316L 用于焊接适配器的安装T51 1½" 三夹具 ISO 2852 1.4435/316L T61 2" 三夹具 ISO 2852 1.4435/316L XXX 特殊型设计M1 紧凑型M2 扩展型 (148 mm/6 inch ... 3000 mm/115 inch)。
振动式音叉说明书Tuning fork
Kunpeng Fork level switchOperation ManualThank you for your choosing our product! Beforeoperation, please read this “Operation Manual”carefully to ensure normal operation of instrument.2 Compact type fork level switchBrief introduction to productBased on the tuning fork vibration technology, this fork levelswitch has been equipped with durable stainless steel bodyand fork so that it can be used in various kinds of fields. The3/4” or 1” economic type level switch can be fixed onto pipelineor storage tank through screw mounting, or installed onto thefood industrial facility through sanitation fastenings. In addition,the direct load switch adapts to any power supply or PNP output,also can be used as the direct interface of PLC.Product features◆ Away from the influence including water flow 、onflow 、bubble 、foam 、vibration 、solid content 、coating and liquidfeatures completely.◆ Less installation process steps without indication of positions◆ Insensitive response to polarity with short-circuit protection function◆Standard plug/socket fastenings available◆With immovable parts or gap, free-maintenance can be acquired completely◆All the information about electric components、self-check and state monitoring can be finished through LEDdisplay◆The magnetic test points make the function test easier◆Compacted design make the outline be small and exquisite◆Quicker response to viscous liquid due to its “Dripple” design◆Sanitation fasteningsMeasuring PrincipleBased on the tuning fork vibration principle, this level switch adopts piezoelectric crystal to vibrate the fork by fixed frequency of tuning fork, also the frequency variation can be monitored continuously. When used for low level alarm, the liquid in container flows down and through the tuning fork to cause the variation of natural frequency, this frequency variation can be captured by electric component so that the output mode can be switched into another one. When used for high-level alarm, the liquid inside container goes up and vibrate the tuning fork so the output mode can be changed again.3Short fork technologySelect the natural frequency (about 1300Hz) of tuning fork so that the interference which can cause faulty action of switch can be avoided effectively. The shorter fork can extend into container, thus, this product can adapt to all liquid variety, abundant researches have established stable base for high working efficiency so that this product can adapt to any kind of liquid including painting liquid、inflatable liquid and serous fluid.Special functionsLED DisplayWith LED display, it is available to carry out observation through the window of shell. When under “CLOSE” mode, the LCD display will flicker continuously (one time per 0.5s), while under “OPEN” mode, the LCD display will be on all the time.Magnetic test pointsDistributed at the side of shell, the operator can carry out function test through these test points. When one magnetic block touches the test point, the output will be changed.Electric connectionFor a quick connection, adopt standard DIN 43650 plug/socket, in addition, insensitive polarity and short-circuit protection can make the electric connection easily and safely.4Fork design“Dripple” design (drop from the end of fork) can make the test speed quicker, specially for high viscosity liquid, the scnsitivity becomes higher.5Application exampleOverflow preventionWhen in the course of loading, the overflow material will cause harm to human body andenvironment as well as production loss and cleaning cost, so this instrument is consideredas a crucial limit switch which can offer overflow signal at any time.Pump protectionThe length of short fork inserting wet side is shortest and can be fixed onto pipeline andcontainer at any angle so that the installation cost can be reduced effectively. Because theextending length of fork is 2 inch only (50mm), it is available to install this instrument ontominorcaliber pipe. If combined with direct-load switch, this instrument can become an idealchoice for the reliable control of pump, also away from dry running of pump.Top and lowest level alarmBecause this instrument can works continuously under 302°F（150℃）temperature and1045 psig (100barg) pressure due to its hard and durable shell, so this product is an ideal oneused to detect the top and lowest of different storage tank. Generally, a separated level alarmswitch is equipped so that an extra standby switch can be provided when failure emerges.6Leakage detectFor flange、gasket、seal ring, there may be leakage when exposed to severe environment likecorrosive liquid. Most of the storage tank and container are installed onto base plate or insideprotection body in case the liquid leakage emerges. This instrument can be used to find out theleakage point quickly and accurately so that the detecting cost can be reduced obviously.Pump controlFor many processes, equipped batch process and elevated storage tank, so a control to pumpbecomes very important to make the liquid level at specified range. Generally, these storagetanks are made of thinner material so that it can not be used to bear heavier instruments.Sanitation applicationDue to its higher surface smooth finish(Ra) which can be more than 0.8 μm, this instrument canmeet the requirements of food and medicine manufacturing. In addition, this instrument is made ofstainless steel so that it has a good durability, thus, it can be used under 302°F（150℃）hightemperature steam cleaning (CIP).7Application and installationInstallation precautions◆Before installation, check if the liquid temp and pressure are at the specified range (see technical specification) ◆Check if the viscosity of liquid is at the recommended range: 0.2 to 10000 cP◆The products with high viscosity include chocolate syrup、tomato catsup、peanut paste and asphalt.Even though these things have a high viscosity, the instrument still can carry out detection, but the discharging time is very long.◆Check if the density of liquid is more than 37.5 lbs./feet3 (600kg/m3).◆the things with low density include acet.、pentane and hexane◆Check if the fork is at the risk of material accumulation◆away from the conditions like accumulation of dry and coated things◆ensure that the fork is away from lapping (joint) caused by high density things◆the things which can cause the lapping of forks include:thickened pulp and asphalt(um)◆Check if there is solid material contained inside the liquid◆If an agglomeration phenomenon emerges, this will cause serious problem.◆ T he max. solid particle shall be within 0.2”(5mm)◆When used in the liquid with over 0.2”(5mm) solid particle, a special consideration shall be took into account,also you may contact the manufacture for solution.◆Foam◆ Generally, this instrument is insensitive to foam, so there is nothing to the test result by foam.◆But, for some individual case, the thickened foam is used as a carrier, for example, in the process of8manufacturing of ice cream, the foam influence shall be took into account.Recommended installation◆ Before installation, turn the switch to “ON” position◆ For high liquid level, turn on “Dry” button◆ For low liquid level, turn on “Wet” button◆It is strongly suggested that the magnetic test points should beused to detect the system all the time when at debugging course.◆Around the instrument, a sufficient space should be left so thatthe installation and electric connection can be implemented (seedimensional drawing for details)◆ Do not install the instrument onto the position where is close to theinlet of liquid.◆ The tuning fork should be kept away from the large number ofsplashed liquid.◆ Ensure that the tuning fork is not in touch with tank wall or any internal partsor any interfering thing.◆Ensure that the tuning fork can be kept a certain distance with accumulative FIG1:Correct installation drawingmatter on the wall of storage tank.9Technical specificationPhysical characters◆ Product: compacted level switch◆ Measuring principle：based on the vibration of tuning fork◆Application: adapt to most liquids including painting liquid、inflatable liquid and serous fluidMechanical features◆ Material of main parts: 316L stainless steel (1.4404)For the tri-clamp joint, the surface smooth finish can be more than 0.8μm, the material for 1” BSPP(G1) gasket is non-asbestos BS7531 X carbon fiber, and added with rubber adhesive.◆ Shell material: Body of shell: 304 stainless steel with polyester labelLED display window: inflaming retarding vanamid (Pa12) UL94 V2Plug: Daiamid GRPSeal ring: nitrile rubber 122“（50mm）◆ Installation material: 3/4” BSPT (R) or NPT1” BSPT (R) or NPT (G) screw or 2”(21mm) sanitation tri-clamp joint10◆Dimensional drawing: See “dimensional drawing” for details◆Explosive-proof grade: IP66/67, meet the standard EN60529Performance◆ Hysteresis range(water): ±0.039”(±1mm), rated value◆ Switch point (water): the distance to fork end (vertical) andthe edge of fork (horizontal) is 0.5”(13mm), this value will changewith the variation of liquid density.Function features:◆ Max. operating pressure: depend on the fastening of storage tank◆ Screw fastening: see FIG2 for details.◆ Sanitation fastening: 435psig (30barg)◆ Temperature: see FIG3 for details.11◆ Liquid density: Min. 37.5 lbs./foot3(600kg/m3)◆ Liquid viscosity range: 0.2 to 10000cP (centipois)◆ Solid content and painting type: it is recommended that the max. particle of the solid in liquid is 0.2”(5mm)For painting type product, the lapping (joint) of fork should be avoided.◆ Switching delay: 0.3 to 30s◆ CIP (clean in position) clean: available to be exposed to 302°F（150℃）high temperature steam for clean.Functional Characteristics◆ Switch type: toggle switch available, also the user can choose another one.◆ Cable connection: a four-way joint can be used for the connection of cables, this meet the standard DIN43650.the max. size of wire :15AWG, in addition, a four-direction bearing unit has been equipped as well (90/180/270/360°)◆ Wire size: max. 0.06 inch2 (1.5mm2)◆ Cable sealing device: a PG9 device can meet the requirements of 0.24-0.31”(6-8mm)Other components◆ Switch shell: made of durable stainless steel and equipped with a LED display window made of daiamid, besides,a four-way joint has been equipped as well and meet standard DIN43650, also a four-direction bearing unit aswell sealing device of cable are equipped as well.◆ Electric components: a standard double-core cable( which can be connected with 15-28V AC power) can be usedto connect this instrument with load equipment to acquire direct load switch which can be used as single-pole single-throw (SPST) switch. In addition, it can be used as a direct interface for PLC on the base of 24V DC solid12PNP output, at the same time, a relay with large capacity can meet the strong current output which can be up to 5A at most.◆ Fastenings of storage tank and tuning fork: for the wet parts material, they are made of 316 stainless steel, and forfork, it is available to use shorter length or half extending structure. You may see the dimensional drawing for details.◆ Screw connection: Screw 3/4”NPT or BSBT (R) 、1”BSBT(R) or BSPP (G)Material: 316L stainless steel◆ Sanitation fastenings: Fittings 2”(51mm) Tri-clamp joint 、1” BSPP (G)、o-ringMaterial: 316L stainless steelAccessories：when used in a position where has a high requirement for sanitation, aauxiliary piece can be used to match 1”BSPP or 2”(51mm) tri-clamp joint.In addition, at the wet side of tri-clamp joint, the manual smooth finish can bemore than 0.8 μm, so this can meet the requirement of severe sanitationstandard.◆For the dimensional drawing of product, please see the below page for details13Dimensional Drawing14Electric connection diagram15Normal Fork Level SwitchBrief introduction to productBased the vibration of piezoelectric crystal, this instrument can be activated toacquire measuring result. When encounter damping action, the vibration amplitudedecreases sharply, also the frequency and phase position changes obviously,all of these changes will be detected by the electric components inside, thentransferred into switch signal for output after process. Thus, this instrument can beused to carry out high-low level test and control as well as alarm function for storagetank, suitable for various kinds of liquids、powders and particle solid. In addition, due to its high availability and stable performance, this instrument can be almost free to maintenance and adapt to various environments, adopt LED to indicate the working state, generally, there are three input modes including DC24V、AC 110V and AC 220V and many output modes like DC current output、relay contact output and DC voltage output, for all of these modes, a high-low level alarm mode is equipped and available to set the sensitivity of instrument.Product features◆Away from the influence including water flow、onflow、bubble、foam、vibration、solid content、coating and liquidfeatures completely.16◆Less installation process steps without indication of positions◆Insensitive response to polarity with short-circuit protection function◆Standard plug/socket fastenings available◆With immovable parts or gap, free-maintenance can be acquired completely◆LED indicator lamp which can be regulated as required◆Quicker response to viscous liquid due to its “Dripple” design◆Sanitation fasteningsMeasuring principleBased on the fork vibration theory, this instrument is designed as a level switch which makes use of the piezoelectric crystal to vibrate the fork by the natural frequency of fork, in addition, the frequency variation can be monitored continuously. When used for lower alarm application, the liquid in container flows down and through the tuning fork to cause the variation of natural frequency, this frequency variation can be captured by electric component so that the output mode can be switched into another one. When used for high-level alarm, the liquid inside container goes up and vibrate the tuning fork so the output mode can be changed again.Technical parameters※Medium temp: -20~80℃※Ambient temp:-20~60℃※Ambient humidity: ≤95%17※Medium type: liquid、powder or particle solid※Medium density: Solid ≥0.1g/cm3Liquid≥0.7g/cm3※Solid particle size:≤10mm※Max. liquid viscosity:<1000mm2/s※Medium angle of repose:≥200※Pressure range: ≤ 1MPa※Shell material: Die-casting aluminum※Fork material:1Cr18Ni9Ti※Degrees of protection provided by enclosures:IP65※Connection mode: G1 1/2 screwFlange（option）※Electric parameters1. Power supply: DC24V, AC220V 50Hz2. Output signal: relay output 5A 220V AC3A 24V DC※Power consumption: ≤2W18※Fork vibration frequency:300±50Hz※Ambient vibration grade: V.L.4,less than 1g accelerated velocity※Switching signal response time:1-60sElectric connectionThe wire connection for instrument is shown as follows, the connection terminal with POWER is used to connect with power supply (AC 220V or DC 24V), No.3,4,5 are the output terminals of relay.Red light--------Indicate the output mode of relayGreen light--------Indicate the fork modeDebugging-------when the LIMIT ELECTED is under L sector, the red light is on, at the same time, if the fork is19vibrating ,the green light will be on as well. In addition, the terminal 3and 4 should be under normal close mode, while terminal 3 and 5 should be under normal open mode. When use your hand touch the fork, the fork stops vibrating and the green light is off, the relay contact turn around, conversely, the terminal 3 and 4 will be under normal open mode , and the terminal 3,5 will be under normal close mode; lastly, regulate the action delay time at the range 1~60s.If the LIMIT SELECTED is under H sector, the red light will be off, at the same time, the fork vibrates and the green light is on; the terminal 3 and 4 is under normal open mode, while the terminal 3 and 5 is under normal close mode, when touch the fork, the fork stops vibrating and the green light is off; at the same time, the contact of relay turn around, conversely, the terminal 3 and 4 become normal open, while the terminal 3 and 5 become normal open, lastly, regulate the delay time at the range of 1~60s.Generally, just select the LIMIT SELECTED at L sector to select the output terminals of relay so that the upper and low limit alarm can be acquired.Sensitivity regulation: this regulation should be done according to the density of medium, the lower density, the higher sensitivity. After regulation, press RST for confirm, generally, H sector is reasonable.After the state indicator light has been selected, carry out connection as description, and turn on the power supply after checked to be correct. Next, use your hand to touch the fork to check if the indicator light change the state, when pull out the hand, the indicator light will resume immediately. Repeat this operation several times to confirm it can work normally before put into use.Installation method1. Generally, this instrument should be installed vertically with downward fork end, also horizontal or inclinedinstallation is acceptable (if the adhesivity of material is high, it is suggested that the fork should be installed vertically downward)2. The installation mode with the upward fork is forbidden203. For the material with lumpy or hard particles, it is suggested that the fork should be installed vertically orslantingly.4. Before installation, it is suggested that a small quantity should be sampled to test the sensitivity of instrument. Forexample: immerse the instrument into a container with medium to test its reliability.5. When in the course of actual installation, there are various installation modes including top installation, side wallinstallation and pipe installation as shown in the following FIG:21Points for attention1. Away from the restricting to the vibration of fork due to material agglomeration.2. When installed at the position with scar, a enough space shall be left between the fork and tank wall3. For the instrument used for liquid level monitoring, the test point should be selected as the actual height.4. For low viscosity liquid, the liquid can flow through the fork smooth, so it is available to carry out installation at anyposition as above FIG.5. For high viscosity, it is difficult that the medium can flow through the fork, so it is suggested that the fork endshould go downward and vertically for installation6. For the instrument used for material level monitoring, the installation position of vertical cylinder or similar notonly depends on the height of material level, but also take into account the angle of repose as well as the feeding position. When under horizontal installation, the fork end should be placed at inner wall by 1/3 radius of container, and the two forks pieces should be put into the same plane. When under vertical installation mode, the distance between the installation center and inner wall of container should be 1/3 radius of container. In addition, the installation position should be away from the direct impact and splash of material medium as much as possible in case cause fault actions or wearing; if failed to avoid the impact or splash of material, a protection eaves should be installed at the installation position of instrument, the length of eaves should be longer than the actual one of instrument.22WARNING!When install or operate, do not hold the fork piece of instrument or knock in case cause deformation of fork piece, even cause damage to internal electric components.Dimensional DrawingScrew InstallationPopular type Extension type23Flange InstallationPopular type Extension type24。
音叉说明书
音叉式物位开关安装使用说明书在使用本产品前请阅读产品安装使用说明一、拆箱小心的打开包装箱并除去包装箱内的填充物，仔细核对装箱单上的每项条款，包括仪表型号、安装附件、说明书等，若发现有缺货，与装箱单不符或破损现象，请立即与我公司联系。
二、查看说明书该说明书包括仪表的技术参数、安装及调试规范，请仔细阅读说明书中的每一项内容，如对说明书中的内容有不明白的地方，可以打电话或传真的方式与我公司联系。
系列物位开关包括1个传感元件、1个电子单元及1套壳体三、概述音叉式物位开关是一种新型的物位开关。
音叉由晶体激励产生振动,当音叉被物料浸没时振动频率发生变化,这个频率变化由电子线路检测出来并输出一个开关量。
工作原理根据物料对振动中的音叉有无阻力，探知料位是否到达或超过某高度，并发出通断信号，这种原理不需要大幅度的机械运动，驱动功率小，不必校准，可快速低成本启动。
结构简单，无机械运动部件，无维修、无磨损，运行寿命长，灵敏而可靠。
传感器的音叉以固有的频率振动，当音叉触及液体或其他物料时，其固有的振动频率降低，能量消耗在物料颗粒间的摩擦上，迫使振幅急剧衰减而停振，频率的变化激活液位开关，产生通断信号。
音叉式物位开关又被称作“电气浮子”凡使用浮球液位开关和由于结构、湍流、搅动、气泡、振动等原因导致不能使用浮球液位开关的场合均可使用“音叉式物位开关”。
由于音叉物位开关无活动部件,因此无须维护和调整,是浮球液位开关的升级换代产品。
音叉式物位开关广泛应用于石化、轻工、食品、水处理等行业，对物位进行上/下限位报警及控制。
四、产品特点✧适应性强：被测液体不同的电参数、密度对测量均不产生影响。
结垢、搅动、湍流、气泡、振动、中等粘度、高温、高压等恶劣条件对检测也无影响。
✧不需调校：由于音叉限位开关的检测不受被测介质电参数及密度的影响,所以无论测量何种液体都不需现场调校。
✧免于维护：由于音叉限位开关的检测过程由电子电路完成,无活动部件,所以一经安装投运使用便不需要维护。
GDYC700 音叉料位开关 使用说明书
GDYC700音叉料位开关使用说明书上海翔舜自动化成套设备有限公司目录提示 (03)概述 (03)了解产品 (03)工作原理 (05)技术参数 (05)安装方式 (06)电气连接 (09)仪表面板分布 (10)仪表调试方法 (10)产品选型 (11)提示：请您在选型、安装、使用本产品之前，请您认真仔细研读本产品说明书，注意本产品被限制应用的场合，注意安装方式要符合说明书中的要求，避免出现错误的安装方法，只有这样才能保证产品的长期可靠有效的运行。
概述：GDYC700系列音叉式料位开关，由于振幅可调，便于测量不同状态和密度的物料，适用于各种料仓固体物料料位以及各种容器内液位的定点报警或控制。
固体物料：粉煤灰、水泥粉、大米、塑料颗粒、盐、糖等。
液体介质：水、酸、碱、染料、油类、牛奶、酒类、饮料等。
了解产品：工作原理：GDYC700系列音叉物位开关，由发讯叉体和放大器两部分组成，在叉体根部压紧两组压电晶体，一组做为驱动器，驱动叉股产生振动；另一组做为检测器，用以将叉股振动转换成电压信号。
当叉股受阻时，振荡器的振幅变小，继电器输出开关信号。
技术参数：环境温度：-25～60℃叉体材料：铜合金或不锈钢(根据用户订货)电源电压：AC220V50／60Hz；DC24V功率：1.5W输出信号：二组常开、常闭触点；0/10mA出线口：M20× 1.5触点容量：AC220V5A物料颗粒最大外形尺寸：≤10mm容器中最大耐压：4.0MPa(定货应说明耐压)容器中的工作温度：-20～180℃(定货应说明工作温度)音叉振荡频率：约200Hz音叉尖端振幅：约0.5mm音叉阻尼延时：约2S延时调节：0~30S介质密度：不小于0.6g/cm³外形尺寸：如图1、图2、图3介质为非粘性物料：不含有对叉体起腐蚀作用的物体防护等级：IP65防爆：固体DIP、DTl3粉尘防爆(不适用于炸药场所)液体：dⅡBT4型号确定：☆确定“普通型”与特殊型”当检测坏境为常温、常压、中等粘度的液体或直径小于5m流动性较好的固体物料时可以选择“普通型”。
Endress+Hauser Liquiphant FTL41 液体音叉开关操作手册说明书
Products Solutions Services操作手册Liquiphant FTL41液体音叉开关液体限位检测BA01893F/28/ZH/05.23-00716287102023-09-30适用固件版本号：01.01.zz (设备固件)Liquiphant FTL412Endress+HauserLiquiphant FTL41目录Endress+Hauser3目录1文档信息 (5)1.1文档用途.............................51.2图标................................51.2.1安全图标......................51.2.2电气图标......................51.2.3工具图标......................51.2.4特定信息图标...................51.2.5图中的图标.....................52基本安全指南 (6)2.1人员要求.............................62.2指定用途.............................62.2.1使用错误......................62.3工作场所安全.........................62.4操作安全.............................62.5产品安全.............................73产品描述 (7)3.1产品设计 (7)4到货验收和产品标识 (8)4.1到货验收.............................84.2产品标识.............................84.2.1铭牌..........................84.2.2电子插件......................84.2.3制造商地址.....................84.3储存和运输...........................84.3.1储存条件......................84.3.2运输设备......................95安装 (9)5.1安装要求.............................95.1.1注意开关点.....................95.1.2注意介质粘度的影响.............105.1.3避免黏附.....................115.1.4预留安装间隙..................115.1.5支撑设备.....................125.1.6焊座，带泄漏检测孔.............125.2安装设备............................125.2.1所需工具.....................125.2.2安装.........................125.3滑动套管............................145.4安装后检查 (14)6电气连接 (15)6.1所需工具............................156.2接线要求............................156.2.1带锁定螺丝的外壳盖.............156.2.2连接保护性接地端（PE）.........156.3连接设备............................156.3.1电子插件FEL42：三线制连接，直流DC-PNP 型..................166.3.2电子插件FEL44：通用电流连接型，带继电器输出..............176.3.3电子插件FEL48：两线制连接，NAMUR 信号（> 2.2 mA /< 1.0 mA）....................206.3.4连接电缆 .....................216.4连接后检查..........................227操作方式 (22)7.1操作方式概览........................227.1.1操作方法 .....................227.1.2电子插件上的部件.. (22)8调试 (23)8.1功能检查 ...........................238.2开机...............................238.3详细信息 (23)9诊断和故障排除 (23)9.1电子插件上的LED 指示灯...............239.2固件更新历史 (23)10维护 (23)10.1维护任务 (24)10.1.1清洁 (24)11维修 (24)11.1概述...............................2411.1.1维修理念.....................2411.1.2防爆型设备维修................2411.2备件...............................2411.3返厂...............................2411.4处置...............................2512附件 (25)12.1保护盖，适用单腔体铝外壳或316L 外壳...2512.2M12插座...........................2512.3常压滑动套管........................2512.4高压滑动套管........................2612.5焊座...............................2813技术参数 (28)13.1输入...............................2813.1.1测量变量 .....................2813.1.2测量范围 .....................2813.2输出...............................2913.2.1输出变量和输入变量.............2913.2.2输出信号 .....................2913.2.3防爆连接参数..................2913.3环境条件............................2913.3.1环境温度范围 .................29目录Liquiphant FTL4113.3.2储存温度 (30)13.3.3湿度 (30)13.3.4海拔高度 (30)13.3.5气候等级 (30)13.3.6防护等级 (30)13.3.7抗振性 (31)13.3.8抗冲击性 (31)13.3.9机械负载 (31)13.3.10污染等级 (31)13.3.11电磁兼容性（EMC） (31)13.4过程条件 (31)13.4.1过程温度范围 (31)13.4.2热冲击 (31)13.4.3过程压力范围 (31)13.4.4过压限定值 (32)13.4.5密度 (32)13.4.6粘度 (33)13.4.7密闭压力 (33)13.4.8固体颗粒尺寸 (33)13.5其他技术参数 (33)4Endress+HauserLiquiphant FTL41文档信息Endress+Hauser 51文档信息1.1文档用途文档包含设备生命周期内各个阶段所需的所有信息：从产品标识、到货验收和储存，至安装、电气连接、操作和调试，以及故障排除、维护和废弃。
YH300 300B型音叉说明书
音叉式料位开关说明书（YH300/YH300B ）YH300 YH300B一外型尺寸图二操作说明 1．解锁：长按“SET ”约10秒，四颗灯全亮表示已经解锁，然后返回正常工作状态。
2． 锁定:在解锁状态下，若60秒内无按键按下，即自动锁定。
3．常开常闭的设定：拨动拨码开关或以设定常开常用闭。
4． 自检模式：将叉体放入待测介质中， 稳定5秒。
在解锁后长按“LEARN ”键5秒之后，LED1～LED4依次闪亮，频率约为1次/秒，表示正在自检中；随后如果4颗LED 全部闪亮，表示自检成功；如果中间两颗灯闪亮，则表示自检失败，此时需要重新自检。
5． 在解锁状态下，单按SET 键即可以设 置灵敏度，此时LED1～LED4随着按钮的按动而滚动点亮，LED1～LED4分别表示灵敏度从高到低。
三 特别说明： 1. 此智慧型音叉的自检功能，一方面是为了克服叉体安装于桶壁后出现 的吸振现象，另一方面是为了防止杂讯干扰，避免误动作。
2. 产品的出厂设定值是以水的密度（1g/cm ³），作为状态切换的基准， 当待测物的密度小于1g/cm ³时，则需要重新学习。
3. 灵敏度出厂设置为最高，适用于待测物料比较稳定的场所。
如果待测物料表面的波动较大，则需要交灵敏度调低。
以防止发生误报警的情况。
4. 在安装时，请尽量避开有明显振动的位置，以防止音叉误动作，如 无法避免，请在安装位置处重新自检，或恢复出厂设置。
用生料带密封 用扳手拧紧 匀用手拧五 存储槽安装尺寸、实例及注意事项 1. 安装时，可将开关以水平向下呈15-20度之夹角安装，以减少物料的冲击和挂料现象的发生。
2. 安装时尽可能远离桶槽的进料口以避免物料冲击和误报警的发生。
如无法避免时，须在进料口与料位之间加装隔板保护。
3. 接线盒入线口必须朝下，电源线入线口的固定螺母必须锁紧。
4. 工作人员于桶槽内工作时，严禁利用振动棒攀爬或悬挂任何绳索及物 1 正确安装： 1..顶部安装，振动棒垂直向下，可安装在顶部（远离进料口）的任何位置。
音叉物位开关
音叉物位开关说明书音叉物位开关说明书概述UZY系列音叉物位开关是通过压电晶体的谐振来引起其振动的，当受到物料阻尼作用时，振幅急剧降低且频率和相位发生明显变化，这些变化会被内部电子电路检测到，经过处理后，转换成开关信号输出。
UZY系列音叉物位开关可以对料罐的高低位进行监测、控制和报警，适用于各种液体、粉末、颗粒状固体。
它实用简单、运行可靠、适应性强基本上是免维护的、音叉和输出均有工作状态，均用发光二极管指示，可依据习惯调整状态指示，并配有三种输入方式（直流24V、交流110V和交流220V）和多种输出方式（直流电流输出型、继电器接点输出型、直流电压输出型）。
所有类型均有高或低故障报警模式和可选择的仪表开关灵敏度。
技术参数介质温度范围：-30℃～220℃环境温度：-30℃～80℃环境湿度：≤95%RH被测介质：液体、粉末或颗粒状固体被测介质密度：固体≥0.1g/cm3；液体≥0.7g/cm3被测固体颗粒尺寸：≤10mm最大液体粘度：＜1000mm2/s被测介质安息角：≥200压力范围：≤2MPa壳体材料：压铸铝合金叉体材料：1Cr18Ni9Ti电气接口：G3/4防护等级：IP65连接方式：1”NPT；G3/4；G11/2螺纹；法兰（用户选定）电气参数：1、供电电压：DC24V；AC220V50Hz2、继电器输出：8A220V AC直流电压输出：0或5V直流电流输出：0或10mA3、电源功耗：≤2W音叉振动频率：300±50Hz环境振动等级：V.L.4加速度不大于1g 开关信号动作时间：1—60S红灯——音叉工作状态；继电器输出状态指示当选择限位选择处于L状态：继电器6、7、9、10接点常闭，7、8、10、11接点常开，绿灯亮，表示音叉处于振动状态，当物料碰到插体时，插体停振，绿灯灭，继电器翻转，常开接点7、8、10、11闭合，常闭接点6、7、9、10断开，表示音叉处于停振状态。
当选择限位选择处于H状态：继电器6、7、9、10接点常开，7、8、10、11接点常闭，红灯亮，表示音叉处于振动状态，当物料碰到插体时，插体停振，绿灯亮，继电器翻转，常开接点6、7、9、10闭合，常闭接点7、8、10、11断开，表示音叉处于停振状态。
音叉物位开关使用说明
音叉物位开关使用说明一、产品概述音叉物位开关是一种常用于粉状、颗粒状等物料的物位检测设备。
它通过利用物料的振动特性，实现对物料的高精度检测和控制。
本文将详细介绍音叉物位开关的使用方法和注意事项。
二、使用方法1. 安装：首先，确定好安装位置。
一般来说，应选择物料流动的区域，以确保能够正常检测物料的出现或消失。
然后，将音叉物位开关固定在合适的位置上，确保其与物料的接触面光滑且无障碍。
2. 连接电源：根据音叉物位开关的额定电压和电流要求，将其正确连接到电源。
务必注意电源的稳定性和可靠性，以免影响设备的正常工作。
3. 调试：打开音叉物位开关的电源开关，待设备启动完成后，按照设备说明书中的要求进行参数设置和校准。
通常情况下，可以通过调节音叉物位开关的灵敏度和延迟时间来适应不同物料的检测需求。
4. 测试：在设备正常工作之后，可以进行物料的测试。
将物料缓慢地注入到检测区域，观察音叉物位开关的状态变化。
当物料接触到音叉时，音叉的振动频率会发生变化，从而触发开关动作。
5. 故障排除：如果在使用过程中发现音叉物位开关无法正常工作，首先检查电源是否连接正确，然后检查设备的灵敏度和延迟时间是否设置正确。
如果问题仍然存在，建议联系售后服务人员进行进一步的故障排查和维修。
三、注意事项1. 安全操作：在使用音叉物位开关时，务必注意安全。
避免直接接触设备的运行部件，以免造成伤害或设备损坏。
2. 清洁维护：定期清洁音叉物位开关，避免物料残留或积尘影响其正常工作。
使用柔软的干布擦拭设备表面，不要使用有腐蚀性或磨损性的清洁剂。
3. 环境适应：音叉物位开关的工作环境应保持干燥、无腐蚀性气体和无强烈振动。
避免将设备暴露在高温、高湿或有腐蚀性气体的环境中，以免影响设备的寿命和性能。
4. 参数设置：在调试设备时，根据物料的特性合理设置音叉物位开关的灵敏度和延迟时间。
灵敏度设置过高可能导致误报，而设置过低可能导致漏报。
5. 维修保养：如果发现音叉物位开关出现故障或异常情况，建议及时联系售后服务人员进行维修和保养。
Endress+Hauser Liquiphant FTL41 音叉液位开关操作手册说明书
Products Solutions Services操作手册Liquiphant FTL41音叉液位开关音叉液位开关BA01893F/28/ZH/02.19714412012019-06-29Liquiphant FTL412Endress+HauserLiquiphant FTL41目录Endress+Hauser3目录1文档信息 (5)1.1图标 ................................51.1.1安全图标......................51.1.2电气图标......................51.1.3特定信息图标...................51.1.4图中的图标.....................52基本安全指南 (6)2.1人员要求.............................62.2指定用途.............................62.2.1使用错误......................62.3工作场所安全.........................62.4操作安全.............................62.5产品安全.............................73产品描述 (7)3.1产品设计 (7)4到货验收和产品标识 (7)4.1到货验收.............................74.2产品标识.............................84.2.1铭牌 ..........................84.2.2制造商地址.....................84.3储存和运输...........................84.3.1储存条件......................84.3.2运输设备......................85安装 (9)5.1安装条件.............................95.1.1注意开关点.....................95.1.2注意介质粘度的影响.............105.1.3避免黏附.....................115.1.4预留安装间隙..................115.1.5支撑设备.....................125.1.6焊座，带泄露检测孔 ............125.2安装测量设备........................125.2.1所需工具.....................125.2.2安装.........................135.3滑动套管 ...........................145.4安装后检查 (14)6电气连接 (14)6.1连接条件 ...........................146.1.1连接保护性接地端（PE） ........146.2连接测量设备........................156.2.1电子插件FEL42：三线制连接，直流DC-PNP 型..................156.2.2电子插件FEL44：通用电流连接型，带继电器输出..............166.2.3电子插件FEL48：两线制连接，NAMUR 信号（> 2.2 mA/< 1.0 mA）....................196.2.4电缆入口 .....................206.3连接后检查 (21)7操作方式 (21)7.1操作方式概述 ........................217.1.1操作方法 .....................217.1.2电子插件上的部件.. (21)8调试 (21)8.1功能检查............................218.2测量设备上电 (22)9诊断和故障排除 (22)9.1电子插件上的LED 指示灯 (22)10维护 (22)10.1维护任务 (22)10.1.1清洁 (22)11维修 (23)11.1概述...............................2311.1.1维修理念.....................2311.1.2防爆型设备的维修..............2311.2备件...............................2311.3返厂...............................2311.4废弃...............................2312附件 (24)12.1设备专用附件 ........................2412.1.1保护盖，适用金属单腔室外壳......2412.1.2插头.........................2412.2常压滑动套管........................2512.3高压滑动套管........................2613技术参数 (27)13.1输入...............................2713.1.1测量变量 .....................2713.1.2测量范围 .....................2713.2输出...............................2713.2.1输出与输入....................2713.2.2输出信号 .....................2713.2.3防爆连接参数 .................2813.3环境条件............................2913.3.1环境温度范围 .................2913.3.2储存温度 .....................2913.3.3湿度 ........................2913.3.4海拔高度.....................2913.3.5气候等级 .....................2913.3.6防护等级.....................3013.3.7抗振性 .......................3013.3.8抗冲击性.....................30目录Liquiphant FTL4113.3.9机械负载 (30)13.3.10电磁兼容性（EMC） (30)13.4过程条件 (30)13.4.1过程温度范围 (30)13.4.2热冲击 (31)13.4.3过程压力范围 (31)13.4.4测试压力 (31)13.4.5密度 (32)13.4.6密闭压力 (32)13.5其他技术参数 (32)4Endress+HauserLiquiphant FTL41文档信息Endress+Hauser 51文档信息1.1图标1.1.1安全图标危险状况警示图标。
BL-YW510音叉液位开关说明书
Tianjin Bily Science and Technology Development Co., Ltd.BL-YW510音叉液位开关应用领域：适用于所有液态介质的液位控制，同时适用于可流动的固体介质。
一、概述BL-YW510系列音叉液位开关是通过安装在音叉基座上的一对压电晶体使音叉在一定共振频率下振动。
当音叉与被测介质相接触时，音叉的频率和振幅将改变，这些变化由只能电路来进行检测，处理并将之转换为一个开关信号。
音叉式液位开关可测多种液位，具有高/低故障安全限位开关，溢流或空运转保护，泵控制，显示管道内有/无流动等功能。
二、产品特点带智能电路的两用液位开关，适用于轻的，易于流动的固体多种输出形式：直流电流输出型，继电器接点输出型，直流电压输出型通过高频激励，实现极优异的抗噪声干扰能力固定安装设备，安装简单免维护开关的工作与液体的电导率，介电常数无关音叉式液位开关几乎适用于所有的液体介质，如具有爆炸性和非爆炸性危险的液体，腐蚀性液体（酸，碱）高粘度液体等。
它不受泡沫，涡流，气体的影响。
同时也适用于测量能自由流动的中等密度的固体粉末或颗粒。
三、技术参数介质温度范围-20~120度环境温度-20~60度环境湿度≤95%RH被测介质液体，粉末或颗粒状固体被测介质密度固体≥0.1g/cm3；液体≥0.7g/cm3被测固体颗粒尺寸≤10mm最大液体粘度＜1000mm2/s被测介质安息角≤50°压力范围≤10Mpa材料: 壳体压铸铝合金；叉体：1Cr18Ni9Ti外壳防护等级IP65连接方式G 1’’螺纹（最小可以做到1’’），法兰（用户选定）供电电压DC24V;AC220V 50Hz输出信号2线制5A 220V AC；3A 24V DC；3线制继电器输出音叉振动频率300±50Hz四、仪表选型型 号 说 明Tianjin Bily Science and Technology Development Co., Ltd.BL-YW510 ─□ /□/□ /□/□ 叉体形式 X小巧型 N标准型 L延长型（后接数字为叉体长度） 工作电源及输出信号 A DC12~55V（NPN 集电极开路输出） BDC24V（继电器输出） CAC25~250V（两线制输出） 工作环境 O常温型（-20~60度） H中温型（-20~120度） 连接方式 G螺纹连接（需客户选定） F法兰连接（需客户选定） 危险等级I本安型 E 隔爆型 五、外形尺寸1.标准型2.加长型Tianjin Bily Science and Technology Development Co., Ltd.六、仪表接线产品端子图及系统接线●直流24V 供电继电器输出时的系统连线如图1 所示。
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音叉式物位开关安装使用说明书
在使用本产品前请阅读产品安装使用说明
一、拆箱
小心的打开包装箱并除去包装箱内的填充物，仔细核对装箱单上的每项条款，包括仪表型号、安装附件、说明书等，若发现有缺货，与装箱单不符或破损现象，请立即与我公司联系。
二、查看说明书
该说明书包括仪表的技术参数、安装及调试规范，请仔细阅读说明书中的每一项内容，如对说明书中的内容有不明白的地方，可以打电话或传真的方式与我公司联系。
系列物位开关包括1个传感元件、1个电子单元及1套壳体
三、概述
音叉式物位开关是一种新型的物位开关。
音叉由晶体激励产生振动,当音叉被物料浸没时振动频率发生变化,这个频率变化由电子线路检测出来并输出一个开关量。
工作原理根据物料对振动中的音叉有无阻力，探知料位是否到达或超过某高度，并发出通断信号，这种原理不需要大幅度的机械运动，驱动功率小，不必校准，可快速低成本启动。
结构简单，无机械运动部件，无维修、无磨损，运行寿命长，灵敏而可靠。
传感器的音叉以固有的频率振动，当音叉触及液体或其他物料时，其固有的振动频率降低，能量消耗在物料颗粒间的摩擦上，迫使振幅急剧衰减而停振，频率的变化激活液位开关，产生通断信号。
音叉式物位开关又被称作“电气浮子”凡使用浮球液位开关和由于结构、湍流、搅动、气泡、振动等原因导致不能使用浮球液位开关的场合均可使用“音叉式物位开关”。
由于音叉物位开关无活动部件,因此无须维护和调整,是浮球液位开关的升级换代产品。
音叉式物位开关广泛应用于石化、轻工、食品、水处理等行业，对物位进行上/下限位报警及控制。
四、产品特点
✧适应性强：
被测液体不同的电参数、密度对测量均不产生影响。
结垢、搅动、湍流、气泡、振动、中等粘度、高温、高压等恶劣条件对检测也无影响。
✧不需调校：
由于音叉限位开关的检测不受被测介质电参数及密度的影响,所以无论测量何种液体都不需现场调校。
✧免于维护：
由于音叉限位开关的检测过程由电子电路完成,无活动部件,所以一经安装投运使用便不需要维护。
五、典型应用
✧自来水、矿泉水
✧纸浆、胶水、染料
✧废水、泥浆、酸碱溶液
✧可产生气体的液体
✧啤酒、啤酒发酵剂、饮料
✧柴油等危险场所
✧流动性好的固体粉料
六、主要技术指标
✧供电：24VDC（标准）；
220VAC（可选）
✧输出方式：SPDT继电器（单刀双掷）
✧输出容量：220VAC 5A 24VDC 3A
✧环境温度：-20℃～70℃
✧介质温度：-40℃～150℃
✧工作压力：小于2MPa
✧介质密度：最低0.6g/cm3
✧延时：1～50s（可选）
✧功耗：0.5W
✧高低位报警：现场可设置为HLFS（高位报警方式）或LLFS（低位报警
方式）
✧电气接口：G 1/2”
✧过程连接：1”NPT螺纹安装（标准，可选BSPT）；法兰安装（可选）
✧外壳防护：IP65
✧防爆：Exd II CT4
七、安装方式
音叉限位开关通常采用侧装（在仓壁侧面安装）方式安装与仓体侧壁对料位高度进行上下限位置的检测；当仓体不便侧面开孔时可采用顶装（在仓的顶部安装）方式安装，位置应选择能避开进料时物料冲击的位置；亦可安装与管道上防止泵的无料运行。
金属罐安装示意
正确安装错误安装
管道检测安装示意
正确安装错误安装
注意事项：
A、安装传感器时，将其插入罐体，用扳手卡住传感器螺纹上部的六方形拧紧即
可，注意不要用手拧动兰色壳体，因为在拧紧的过程中会造成兰色壳体与探
杆间发生转动。
在出厂时壳体内部的电子单元与传感器的连接电缆已接好，用力拧壳会使内部的连接电缆拉断。
B、安装施工时注意叉体不要受到强烈冲击，以免损坏压电晶体。
C、仪表传感器应尽量避开物料的冲击，水平安装时，叉体的两个平行叉板应取
与地面垂直方式（此时叉体方向标记冲上或者冲下），以保证物料能容易地
从叉板之间流出。
八、产品调试
1、检查电源接线：
所有电源接线均接至电子单元顶部的端子板上。
元件位置分布图
直流24V供电交流220V供电
继电器输出继电器输出
2、高低位报警选择：
高低位报警可在现场由安装在电子单元上的高低位报警选择跳块进行设置。
在右侧时为高位报警，在左侧时为低位报警（出厂时一般设为高位报警）。
高位报警：当物料淹没传感器中心端时（或仪表出现故障时），发出高位报警信号（跳块位置如图1所示）。
低位报警：当物料低于传感器中心端时（或仪表出现故障时），发出低位报警信号（跳块位置如图2所示）。
图1.高位报警图2.低位报警
3、继电器的接线
每台仪表带有一组继电器触点（SPDT）单刀双掷，继电器仅作为一个开关，不能直接带动报警器或其他较大功率设备动作。
所有控制信号均由电子单元顶部的端子排输出。
绿灯亮时表明继电器工作正常（未报警，如图3所示），灯灭时继电器处于报警状态（在断电或仪表出现故障时，继电器也处于报警状态，如图4所示）。
图3.高位报警图4.低位报警
九、产品调试
打开外壳上盖，内有接线端子、拨动开关、发光二极管LED，灵敏度调节钮。
灵敏度调节钮顺时针旋转，灵敏度降低；逆时针旋转，灵敏度增高。
通常出厂时已标好无需调校，对于高粘度液体介质，一般调低灵敏度。
十、测试
出厂时一般调至高位报警，将音叉式物位开关接上电源，灯亮将其提起后垂直插入水中，插入深度应大于25mm，此时输出指示灯点灭；再将音叉提起离开水面，输出指示灯变亮，说明仪表工作正常。