dvc6000指导手册
费希尔DVC6000说明
FISHER DVC6000一Fisher气动执行机构Fisher气动调门上其配备的DVC6000系列数字式阀门控制器是可以通讯的、基于微处理器的电-气转换仪表,除了把电流信号转换成气动输出压力这一标准功能外,还可以通过275型HART通讯器很容易地访问对于过程操作至关重要地信息。
一、技术参数:输入信号:4~20mA直流,标准输出信号:为执行机构要求的气动信号,最大可达到气源压力的95%。
最少范围:0.4bar(6psig)最大范围:9.5bar(140psig)气源压力:推荐值:比执行机构要求的最大值高0..3bar(5psig)最大值:10.3bar(150psig)或执行机构最大压力额定值,取两者中较低者二、275型HART通讯器由于Fisher气动执行机构的控制器是用275型的HART通讯器来校验的,所以应该了解和掌握HART通讯器的使用。
275型HART通讯器主要由数字键盘,LCD显示器,操作键和功能键等部分组成,显示器可以显示8行x21字符,当与仪表连接时可以把仪表的信息传达出来。
数字键盘有两个功能:快速选择菜单选项和输入数据。
操作键主要是开关键、方向键、和热键。
HART通讯器通常在两种环境里使用:离线(不跟仪表连接时)和在线(跟仪表连接时)。
当打开HART通讯器时,它首先进行自检,然后自动搜索HART兼容设备,如果没有找到设备,它就显示信息“No Device Found”(没有找到设备)。
然后显示主菜单。
屏幕上有四个选择:Offline(离线),Online(在线),Frequency Device(频率设备)以及Utility(属性)。
如果找到一个HART兼容设备,HART通讯器会显示Online (在线)菜单。
使用位于LCD下的标有F1至F4的四个功能键,可选择由动态字符说明的软件功能。
在任意给定的菜单里,出现在功能键上的字符说明该键在当前菜单里的功能。
可选功能包括:?HELP(帮助)-提供给你关于显示选项的信息。
Fisher DVC6000快速入门指南(中文)
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Variables 1.Aux Input 2.Temp 3.Cyal Count i Acum 5.Free Time 6.Raw Tvi Input Device Information= 1.HART Univ Rev 2.Device Rev 3.Fimware Rev 4. Hardware Rev 5.Inst Level 7.Device ID
Actuator & Valve= !"#$ 1. Relaly Type 2.Max Supply Press 1-2-5 3.Actuator Style 4.Feedbck Connection 5. Tvi Sensor Motion Input Char 6.Valve Style ! 7.Zero Ctrl Signal 1-2-6-2 1.Input Char 2.Define Response Control ! Custon Char 1-2-6 1.Tuning Set 2.Input Char 3.Set Pt Filter Time 5.Limits & Cutoffs 6.Min Open/Close 1-2-7 Alerts= 1.Travel Alerts 2.Travel Dev Alert 3.Travel Accum Alert 4.Cycle Count Alent 5.Other Alerts 7.Alert Record Self Test Shutdown ! NKaçåÉ 2.No Free Time Fail 3.RAM Fail 4.Critical NUM Fail 5.Temp Sensor FAIL I Sensor Fail 7.Drive Current Fail 1-3-1
FISHER_DVC6000定位器调试说明
D 102758X 012FIELDVUE R DVC6000 Series Digital ValveControllersFIELDVUE RDVC6000 Series digital valvecontrollers (figures 1 and 2) are communicating,microprocessor-based current-to-pneumaticinstruments. In addition to the traditional function of converting a current signal to a valve-position pressure signal, DVC6000 Series digital valvecontrollers, using HART R communications protocol,give easy access to information critical to process operation. This can be done using a Model 375 Field Communicator at the valve or at a field junction box,or by using a personal computer or a system console within the control room. Using HART communication protocol, information can be integrated into a control system or received on a single loop basis.W7957-1 / ILFigure 1. Type DVC6010 Digital Valve Controller Mounted ona Sliding-Stem Valve Actuator DVC6000 Series digital valve controllers can be used on single- or double-acting actuators. Thedigital valve controller receives feedback of the valve travel position plus supply and actuator pneumatic pressure. This allows the instrument to diagnose not only itself, but also the valve and actuator to which it is mounted. This provides you with very costeffective maintenance information, so that required maintenance can be performed on the instrument and valve when there really is a need.Wiring is economical because DVC6000 Seriesdigital valve controllers use two-wire 4 to 20 mA loop power. This provides for low cost replacement of existing analog instrumentation. The DVC6000Series digital valve controller’s two-wire designavoids the high cost of running separate power and signal wiring.W7960-1 / ILFigure 2. Type DVC6010 Digital Valve Controller Mounted onType 585C Piston Actuator(continued) 2actuator has been tested to 15 meters (50 feet) maximum without performance degradation.2. These terms are defined in ISA Standard S51.1.3. Normal m3/hr--Normal cubic meters per hour at 0_C and 1.01325 bar, absolute; Scfh--Standard cubic feet per hour at 60_F and 14.7 psia.4. Values at 1.4 bar (20 psig) based on a single-acting direct relay; values at5.5 bar (80 psig) based on double-acting relay.5. Not applicable for Type DVC6020 digital valve controllers in long-stroke applications or remote-mounted Type DVC6005 digital valve controllers with long pneumatic tubing lengths.6. Approvals for remote-mounted units are pending.7. The Low Bleed Relay is offered as standard relay for DVC6000 ESD tier, used for On/Off applications.FeaturesD Improved Control—Two-way digital communications give you current valve conditions. You can rely on this real-time information to make sound process management decisions. By analyzing valve dynamics through AMS ValveLink Software , you can identify control areas needing improvement and maintain a high level of system performance. D Environmental Protection—You can avoid additional field wiring by connecting a leak detector or limit switch to the auxiliary terminals in theDVC6000 Series digital valve controller. In this way, the instrument will issue an alert if limits are exceeded.34D Enhanced Safety—You can check instrumentand valve operation and keep the process running smoothly and safely from a remote location. Access is possible at a field junction box, marshalling panel, or within the safety of the control room using either a 375 Field Communicator, a notebook PC, or a system workstation. Your exposure to hazardous environments is minimized and you can avoid having to access hard-to-reach valve locations.D Hardware Savings—DVC6000 Series digital valve controllers, when used in an integrated system, allow you to realize significant hardware and installation cost savings by replacing other devices in the process loop, such as positioners and limit switches, with a FIELDVUE digital valve controller.D Built to Survive—Field-tough DVC6000 Series digital valve controllers have fully encapsulated printed wiring boards that resist the effects of vibration, temperature, and corrosive atmospheres.A separate weather-tight field wiring terminal box isolates field-wiring connections from other areas of the instrument.D Increased Uptime—With the self-diagnostic capability of DVC6000 Series digital valve controllers, you can answer questions about a valve’s performance, without pulling the valve from the line. You can run diagnostics (I/P and relay integrity, travel deviation, and on-line friction and deadband analysis and trending) while the valve is in service and operating. You can also compare the present valve/actuator signature (bench set, seat load, friction, etc.) against previously stored signatures to discover performance changes, before they cause process control problems.D Faster Commissioning—The two-way communication capability allows you to quickly commission loops by remotely identifying each instrument, verifying its calibration, reviewing stored maintenance notes, and more.D Easy Maintenance—DVC6000 Series digital valve controllers are modular in design. The single master module can be removed from the instrument housing without disconnecting the field wiring, pneumatic connections or stem linkages. This module contains the critical sub-modules so component removal is quick and simple.DiagnosticsDVC6000 Series digital valve controllers are packed with user-configurable alerts and alarms. When integrated with a HART communication-based system, these flags provide real-time notification of current and potential valve and instrument problems. With AMS ValveLink R Software, tests can be performed to identify problems with the entire control valve assembly. Diagnostic capabilities available are Performance Diagnostics (PD) and Advanced Diagnostics (AD).Performance DiagnosticsPerformance Diagnostics enables the use of diagnostics while the valve is in service and operating.D Red/Yellow/Green Condition Indicator(see figure 3)D I/P and Relay Integrity DiagnosticD Travel Deviation DiagnosticD1-Button DiagnosticD On-Line Friction and Deadband Analysis(see figure 4)D Friction and Deadband TrendingWhile all diagnostics can be run while the valve is inline, only the Performance Diagnostics can be performed while the valve is in service and operating.5ERROR(RED)NO CONDITIONS HAVE BEEN DETECTED(GREEN)Figure 3. Red/Yellow/Green Condition Indicators, Shown in AMS ValveLink SoftwareFigure 4. Valve Friction and Deadband AnalysisAdvanced DiagnosticsAdvanced Diagnostics include the following dynamic scan tests:D Valve Signature (see figure 6)D Dynamic Error Band D Instrument Drive SignalThese diagnostic scans vary the positioner set point at a controlled rate and plot valve operation to determine valve dynamic performance. The valve signature test allows you to determine thevalve/actuator friction, bench set, spring rate, and seat load. The Dynamic Error Band test is a combination of hysteresis and deadband plus “slewing.” Hysteresis and deadband are static measurements. However, because the valve is moving, a dynamic error, or “slewing” error is introduced.Dynamic scan tests give a better indication of how the valve will operate under process conditions which are dynamic, not static.The Step Response Test checks the valveassemblies response to a changing input signal. and plots travel versus time. The end results of this test allow you to evaluate the dynamic performance of the valve. The Performance Step Test (25pre-configured points) provides a standardized step test with which to evaluate your valve performance.It utilizes small, medium and large changes.Advanced Diagnostics are performed with AMS ValveLink Software . The valve must be out ofservice for Advanced Diagnostics to be performed.6W8082 / ILHART MULTIPLEXERControl System I/O4-20 mA+HARTFigure 5. Integrate Information from the Digital Valve Controller into a Non-HART Compatible Control System With AMS ValveLinkSoftware’s Modbus InterfaceW7468/ILFigure 6. The Valve Signature DisplayIntegrationD Non-HART Systems—Because DVC6000Series digital valve controllers operate with atraditional 4 to 20 mA control signal, they directlyreplace older analog instruments.Microprocessor-based electronics provide improvedperformance along with repeatable and reliableconfiguration and calibration.D Modbus with AMS ValveLink Software andHART Multiplexers—HART communication allowsyou to extract more value from DVC6000 Seriesdigital valve controllers beyond their inherentimproved performance. When integrated into amultiplexer network and using AMS ValveLinkSoftware, the device and valve information isreal-time. From the safety of a control room, multipleinstruments can be monitored for alerts and alarms.Additionally, tasks such as configuration, calibrationand diagnostic testing do not require special trips tothe field. AMS ValveLink Software can communicatevia Modbus to the distributed control system (DCS)to provide critical information such as valve travelalerts and alarms (figure 5).D Integrated Control System—A control systemwith HART communication capabilities has the abilityto directly gather information from DVC6000 Seriesdigital valve controllers. Information such as valvetravel, alerts and alarms can be seamlesslyaccessed to provide a view into the field device fromthe safety of the control room.71200 Hz “1”2200 Hz “0”AVERAGE CURRENT CHANGE DURING COMMUNICATION = 0A6174/ILFigure 7. HART rFrequency Shift Keying TechniqueFigure 8. Perform Configuration and Calibration at the Valve or Anywhere on the 4 to 20 mA Loop with the Model 375Field CommunicatorCommunicationHART Protocol OverviewThe HART (Highway Addressable Remote Transducer) protocol gives field devices thecapability of communicating instrument and process data digitally. This digital communication occurs over the same two-wire loop that provides the 4 to 20 mA process control signal, without disrupting the process signal (figure 7). In this way, the analog process signal, with its faster response, can be used for control. At the same time, the HART digital communication gives access to calibration,configuration, diagnostic, maintenance, andadditional process data. The protocol provides total system integration via a host device.Model 375 Field CommunicatorYou can perform configuration and calibration at the valve or anywhere on the two-wire loop via a Model 375 Field Communicator (figure 8). Powerful tools such as the Setup Wizard and Auto TravelCalibration automate the tasks of commissioning DVC6000 Series digital valve controllers. Theseautomation tools not only save time, but also provide accurate and repeatable results.AMS ValveLink SoftwareAMS ValveLink Software is a Windows-based software package that allows easy access to the information available from DVC6000 Series digital valve controllers.Using AMS ValveLink Software, you can monitor the performance characteristics of the valve and obtain vital information without having to pull the valve from the line. I/P and Relay Integrity and Travel Deviation Diagnostics, as well as On-Line Friction andDeadband Analysis and Trending can be run while the valve is in service and operating. ValveSignature, Dynamic Error Band, and Step Response are displayed in an intuitive user-friendlyenvironment that allows easy interpretation of data.Diagnostic graphs can be superimposed over those previously stored to view areas of valve degradation.This allows plant personnel to concentrate efforts on equipment that needs repair, avoiding unnecessary maintenance. This diagnostic capability is readily accessible and available to you either in the control room or on the plant floor. In addition to the diagnostic features, AMS ValveLink Softwarecontains an Audit Trail, Batch Runner for automating repetitive tasks, and Trending to view valve performance.AMS ValveLink Software provides integration into AMS and DeltaV, with HART and Fieldbus communications.TRAVEL SENSORTERMINAL BOXTERMINAL BOX COVERPRINTED WIRING BOARD ASSEMBLYI/P CONVERTERPNEUMATIC RELAYGAUGESCOVERW8083-1 / ILFigure 9. DVC6000 Series Digital Valve Controller Assembly (valve-mounted instrument)Principle of OperationDVC6000 Series instruments (figures 9 and 10) receive a set point and position the valve where it needs to be.D The input signal provides electrical power and the set point simultaneously. It is routed into the terminal box through a twisted pair of wires.D The input signal is then directed to the printed wiring board assembly where the microprocessor runs a digital control algorithm resulting in a drive signal to the I/P converter.D The I/P converter assembly is connected to supply pressure and converts the drive signal into a pressure output signal.D The I/P output is sent to the pneumatic relay assembly. The relay is also connected to supply pressure and amplifies the small pneumatic signal from the I/P converter into a single larger pneumatic output signal used by a single-acting actuator. For double-acting actuators, the relay accepts the pneumatic signal from the I/P converter and provides two pneumatic output signals.D The change in relay output pressure to the actuator causes the valve to move.D Valve position is sensed through the feedback linkage by the instrument’s travel sensor. The travel sensor is electrically connected to the printed wiring board to provide a travel feedback signal used in the control algorithm.The valve continues to move until the correct position is attained.8E0408 / ILFigure 10. DVC6000 Series Digital Valve Controller Block DiagramInstallationThe Type DVC6010 digital valve controller is designed for yoke mounting to sliding stem actuators. Type DVC6020 digital valve controllers are designed for mounting to rotary actuators or long stroke sliding stem actuators (over 4-inches travel). Type DVC6030 digital valve controllers are designed for mounting on virtually any quarter-turn actuator. Dimensions for valve-mounted instruments are shown in figures 11, 12, and 13. Dimensions for remote-mounted instruments are shown in figures 14 and 15.The Type DVC6005 digital valve controller base unit may be remote mounted on 2-inch pipestand or wall. The remote-mounted Type DVC6005 base unit connects to the Type DVC6015, DVC6025, orDVC6035 feedback unit mounted on the actuator. Feedback wiring and pneumatic tubing to the control valve assembly must be connected in the field.9102 MOUNTING HOLES 8.6 (0.34)1/4-18 NPTOUTPUT CONN B28.6(1.13)122.8(4.84)144.5(5.69)210.7(8.29)148.7(5.85)ACTUATOR CENTERLINE1/4-18 NPTOUTPUT CONN PLUGGED1/2-14 NPTCONDUIT CONN BOTH SIDES 1/4-18 NPTOUTPUT CONN A 1/4-18 NPT VENT CONNTYPE 67CFR 1/4-18 NPTSUPPLY CONNFigure 11. Dimensions for Type DVC6010 Digital Valve Controller with Integrally Mounted Filter Regulator4 MOUNTING HOLES j 95.3(3.75)158.1(6.23)156.3(6.16)1/2-14 NPTCONDUIT CONN BOTH SIDES 1/4-18 NPTOUTPUT CONN A TYPE 67CFR 1/4-18 NPTSUPPLY CONN19B3557-A E0406 / ILmm(INCH)Figure 12. Dimensions for Type DVC6020 Digital Valve Controller with Integrally Mounted Filter Regulator19B3558-A E0407 / ILmm (INCH)Figure 13. Dimensions for Type DVC6030 Digital Valve Controller with Integrally Mounted Filter Regulator11PIPESTAND MOUNTED10C1795-A / DOC10C1796-A / DOC234184mm (INCH)WALL MOUNTED64(2.50)57(2.25)72(2.82)HOLES 0.86 (0.34)Figure 14. Dimensions for Remote-Mounted Instruments--Type DVC6005 Base UnitThe digital valve controllers are 4 to 20 mA loop powered and do not require additional power.Electrical connections are made in the terminal box.All pressure connections on the digital valvecontrollers are 1/4-inch NPT female connections.The digital valve controller outputs are typically connected to the actuator inputs using 3/8-inch diameter tubing. Remote venting is available.Ordering InformationNote: Fisher does not assume responsibility for the selection, use, or maintenance of anyproduct. Responsibility for proper selection, use,and maintenance of any Fisher product remains solely with the purchaser and end user.When ordering, specify:1. Actuator type and size2. Maximum actuator travel or rotation3. Optionsa. Supply pressure regulatorb. Supply and output gaugesc. HART filterd. Stainless steel housing (valve-mounted instruments only)e. Remote mountingTYPE DVC6015 SLIDING STEM ACTUATOR MOUNTINGUP TO 102 mm (4−INCH) TRAVEL TYPE DVC6025 ROTARY AND LONG−STROKE SLIDING STEMACTUATOR MOUNTINGE0867 / IL10C1799-AE0869 / ILTYPE DVC6035 ROTARY ACTUATOR SHAFT MOUNTING10C1798-A E0868 / ILmm (INCH)(4.50)(3.00)38(1.50)HOLES1/4 - 20 UNC46(1.83)46(1.81)67103135120CONDUIT CONNFigure 15. Dimensions for Remote-Mounted Instruments--Feedback UnitsFisherMarshalltown, Iowa 50158 USA Cernay 68700 France Sao Paulo 05424 Brazil Singapore 128461The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy,they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or specifications of such products at any time without notice.Fisher does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any Fisher product remains solely with the purchaser and end-user.FIELDVUE, ValveLink and Fisher are marks owned by Fisher Controls International LLC, a business of Emerson Process Management. The Emerson logo is a trademark and service mark of Emerson Electric Co. HART is a mark owned by the HART Communications Foundation.All other marks are the property of their respective owners. This product may be covered under one or more of the following patents (5,451,923; 5,434,774; 5,439,021; 5,265,637) or under pending patent applications.Emerson Process Management 。
DVC6000
索引A 测试 2-10报警记录气动的清除 5-14 输出 2-8显示5-14,8-5 输入 2-8使报警块 5-14 排气口 2-9报警控制模式 5-4 显示报警级别 8-4 控制系统要求模拟输入 5-13 允许电压 2-12循环记数 5-13 HART过滤 2-11驱动信号 5-14 获得电压 2-11压力供应 5-14 循环记数行程积累 5-12 显示数值 7-14行程报警使报警 5-13高和低 5-11 重新设定 5-13高高和低低 5-12 D行程偏移 5-12 日期 5-6 7-13模拟调校 6-4 描述 5-16 7-13模拟输入设备信息 7-15 8-3校正 6-6 设备修改 7-15显示值 7-14 8-2 数字调节 6-5模拟输入单元 5-8 DIP开关设定 10-8自动校正位移 6-3 驱动信号错误信息 4-8 显示数值 7-14 8-2 模拟输入使报警 5-14显示级别 7-14 8-2 DVC6000系列使报警 5-13 描述 1-2B 操作规则 9-2冲击模式说明 1-3 命令 5-4 F使能 5-4 反馈连接 5-8 冲击操作 2-15 软件修正 7-15 8-3C 自由时间校正显示数值 7-14 8-3模拟输入 6-6 自检失败 5-14自动校正位移 6-3 G手动校正位移 6-4 风表,堵头,橡胶阀压力传感器 6-7 更换 10-9位移传感器 6-9 H通信线缆 2-13 软件修正 7-15 8-3 连接 HART通讯器, 9-2 电子的 HART通信器动作键3-2 4---20mA 2-9 下降箭头 3-2 通讯 2-11 热键 3-3左键, 3-2 MON/OFF键 3-2 手动校正位移6-4右键,选择键 3-2 手动规范上升键 3-2 专家模块字母数字切换键 3-3 零件列表11-2设备描述修正 3-5 移去11-5显示 3-2 更换10-6动态表 3-2 最大供给压力5-8不在线菜单 3-4 信息5-6 7-13在线采单 3-5 最小关闭时间5-10在线模拟 3-5 最小打开时间5-10令牌 3-4 固定 2-2软件定义键 3-3 67CFR 2-6系统信息 3-5 DVC6010 2-2HART 过滤,部分号码 11-4 DVC6020 2-3HART 标签 5-6 7-13 DVC6030 2-5DVC 6000使用 2-15 O热键,HART 通信器 3-3 操作等级7-16 8-5I 输出压力,显示数值7-14 I/P转换器 P组成列 11-3 普通部分11-2拆卸 10-7 反馈部分11-3更换 10-7 风表,管堵头,橡胶阀11-3 更换过滤 10-7 HART过滤11-4初始安装 4-2 I/P转换器11-3自动校正位移 4-7 7-11 模块基体11-2自动安装 4-3 命令11-2工厂缺省设置 4-3 工具11-2手动安装 4-5 印刷电路板11-3优化4-9 7-12 延迟11-3输入特性5-9输入范围5-8仪表锁定设置5-14仪表等级7-15 8-3仪表模式4-2 5-3仪表系列号5-6 7-13仪表特征7-15 8-3内部温度显示数值7-14 8-2自检失败5-15L回路简图CSA,12-1FM,12-2终端盒,4-3 T温度单元控制系统设备特性调频,4-9 终端盒,顺向电压气动调节器部件列表, HART过滤器调节,6-2 撤换,电压变量部件列表,11-3 复位, Z撤换,10-9 行程显示值零点控制信号复位,10-9 行程累加器查询地址,5-6 显示值压力传感器校准,6-7 有效报警压力构件,4-5。
DVC6000 调试基本步骤
DVC6010 调试基本步骤:准备工作:定位器调试前必须已将机务阀杆与执行器输出推杆正确连接,并已将定位器反馈臂与执行器推杆上反馈用连接臂正确连接。
同时气源压力必须调整到正确值。
开度反馈如用T ri-Loop,必须先激活并已正确设置!机务阀杆与执行器输出推杆连接:因执行器为单作用下缸进气的气开式阀门(开时定位器反馈臂逆时针旋转向上),连接前要求机务将阀门门杆完全向下压倒底,保证阀门处于完全关闭状态。
直接向执行器气缸输入铭牌“BENCH SET:14 —30”中下限压力并适当放大1~2psi,然后将执行器输出推杆与机务阀杆连接。
连接后的理想状态是当气缸输入压力大于“BENCH SET:14 —30”中下限压力时能较快地开始开启,当气缸输入压力达“BENCH SET:14 —30”上限时能够全开。
定位器反馈臂连接:断开至执行器气缸气源,阀门处于全关状态,确认执行器输出推杆上反馈用连接臂已正确用螺丝固定,从定位器内部旋出连接用定位销,将定位销穿过定位器反馈臂上标记为“A”的孔(如是气关式则为“B”孔)并插入定位器壳体上的定位孔,使定位器反馈臂固定不动,根据铭牌“TRA VEL:3/4(inch)”中的执行器行程值,上下滑动调整调整臂与推杆上连接臂的位置,使调整臂在定位器反馈臂滑槽内对准有相应行程标注的数字刻度处,然后拧紧调整臂与推杆上连接臂的连接固定螺母。
注意,调整臂是将定位器反馈臂与执行器推杆上反馈连接臂的连接过渡。
气源压力调整:调整减压阀使气源压力闭执行机构要求的最大值(参考BENCH SET 上限)高0.3bar(5psi),注意此压力必须能使锁气器完全顶开,离开锁气状态。
按检修规程要求锁气器闭锁压力的调整一般不得低于0.3MPa。
Tri-Loop激活并设置:先通讯器连接DVC6000,ONLINE Setup&Diag Detailed Setup Mode Burst Burst Enable,设置成激活状态。
Fisher DVC6000系列智能定位器
Fisher DVC5000/6000系列智能定位器一、FisherDVC5000/6000系列定位器原理Fisher DVC5000/6000系列智能定位器的结构原理图如下图所示智能定位器结构原理图其工作原理是,控制器来的控制信号经端子盒进到印刷线路板子模块,在这里被微处理器读取后经数字算法处理后转换成模拟量后送给I/P转换器。
当信号改变时I/P转换器的线圈和衔铁之间的磁吸引力改变,并因此改变了喷嘴挡板间的距离进而改变了喷嘴背压,该背压经放大器放大后送给执行机构并通过执行机构改变阀杆的位置。
阀行程传感器通过反馈杆感受阀杆位置的变化,并将此信号反给印刷线路板组件参与计算。
当阀杆位置达到正确位置,阀杆位置信号反到印刷线路板组建,经过处理后使I/P驱动信号稳定下来,则喷嘴背压稳定下来,则到执行机构的输出力也稳定下来阀杆位置不再变化。
二、安装要点Fisher智能定位器对安装要求较严格,以往的经验表明,以前的几次阀门校验出错都是因为安装错误造成的。
Fisher智能定位器的反馈杆如图所示其上有A、B两个孔来确定连接位置。
当阀门为风开阀时,定位销钉穿过A孔插入定位器表体上的固定孔,当阀门为风关阀时,定位销钉穿过B孔插入定位器表体上的固定孔来确定连接位置。
然后将十字架的连接杆放入反馈杆的槽内,其所放位置与该阀的行程相对应。
三、275型HART通讯器简介HART通讯器各部分功能如图所示:校验时将HART编程器的引出线接到定位器的LOOP+与LOOP-端子,接线时不分极性。
四、初始设置和校准4.1为了对定位器进行设置和校准必须用HART编程器将仪表模式必须设成“Out of service”并且将保护设为“None”。
如果仪表模式不在“Out of service”模式下时,则按以下步骤将仪表模式设为“Out of service”。
1、将HART编程器接好并打开电源。
2、按HART编程器上的热键并选择仪表模式或从主菜单→详细设置→模式(Mode)→仪表模式(Instrument Mode)来选择仪表模式。
375手操器与DVC6000使用操作手册
375၄ݷᎧDVC6000ဧݷᔫ၄ݿ375手操器与DVC6000使用操作手册ᒎࡴ၄ݿ2009ฤ4Ꮬ1375手操器简介DVC6000的基本设置与行程校验DVC6000的详细设置其它校验附表2345DVC6000ᇹด!ྏ!ᄋ!ገ第一章 375手操器简介 ………………………………………………… 1-1概述 ……………………………………………………………… 1-1键盘的使用 ……………………………………………………… 1-1开机与关机 ……………………………………………………… 1-3 375手操器的主菜单 …………………………………………… 1-3查看375手操器中DVC6000的DD元件及其版本 …………… 1-5 375手操器与仪表的连接 ……………………………………… 1-6第二章 DVC的基本设置与行程校验 …………………………………… 2-1概述 ……………………………………………………………… 2-1阀门行程校验基本步骤 ………………………………………… 2-1进入仪表Online(在线)菜单 ………………………………… 2-1Mode(仪表模式)……………………………… 2-2 InstrumentConfi guration Protection(组态保护)……………………… 2-2Setup Wizard(设置向导)…………………………………… 2-2Auto Travel Calibration(自动行程检验)………………… 2-9Performance Tuner(性能优化整定)……………………… 2-15Stabilizing/Optimizing Valve Response(稳定/优化阀门响应)………………………………………… 2-17第三章 DVC6000的详细设置 ………………………………………… 3-1概述 ……………………………………………………………… 3-1Mode and Protection(模式和保护)……………………… 3-1Response Control(响应控制)……………………………… 3-2Alerts(警报)…………………………………………………… 3-4Status(状态)………………………………………………… 3-9Instrument(仪表)…………………………………………… 3-10Valve & Actuator(阀门和执行机构)……………………… 3-12ดྏᄋገ第四章 其它校验 ………………………………………………………… 4-1 Travel Calibration(行程校验)……………………………… 4-1Sensor Calibration(传感器校验)………………………… 4-1Adjust(气动放大器调整)…………………………… 4-7RelayRestoring Factory Settings(恢复出厂设置)……………4-8第五章 附表 ……………………………………………………………… 5-1工厂缺省详细设置参数值 ……………………………………… 5-1预选整定参数设定值 …………………………………………… 5-3执行机构初始设置信息 ………………………………………… 5-4安装在1066SR上的DVC6030型行程传感器旋转方向选择 …………………………………………………… 5-5预选压力整定参数设定值 ……………………………………… 5-5DVC6000ᇹᔐၤ本手册共分四章。
DVC6000快速自动整定
费希尔山武快速操作手册在对DVC定位器进行整定之前,我们首先得调整一下调整臂和反馈臂的位置。
具体方法是:阀门处在相对自由的状态(定位器输出压力为0,打开定位器反馈保护罩,用定位销(定位器里面有)将反馈臂定位在合适的位置(如果是气开门,将定位销插在A的位置,反之则插在B的位置),松开连接臂和调整臂所连接的螺母,然后将调整臂和反馈臂的交点调整到阀门行程(阀门铭牌上的Travel值)对应的值,再拧紧连接臂和调整臂所连接的螺母,取下定位销!将手操器和定位器的指令线正确连接上(连接在接线盒的LOOP上,注意正负),打开手操器,双击HART application,进入主画面,点击热键,选择Instrument Mode(仪表模式),点击OK,将光标移到Out Of Service(非工作模式)上,点击ENTER,再点击热键,返回主画面。
选择Setup & Diag(设置和诊断),然后选择Calibrate(校验),再选择Auto Calib Travel(自动校验行程),选择manual,点击ENTER,稍等,然后将光标移到Analog(模拟),点击ENTER,然后查看反馈臂和执行机构推杆是否成90o角,如果不是,通过改变输入指令(参考值50%,12mA)使反馈臂和执行机构推杆成90o角,然后点击OK,稍等,再三次点击OK,然后将光标移到In Service(工作模式)上,点击ENTER,再点击OK。
此时改变指令信号,如果阀门动作正常,则校验完毕;如果改变指令信号,阀门不动作或只在指令为0%(4mA)和100%(20mA)时动作,则需要更改Instrument Mode(仪表模式),具体方法是:点击热键,选择Instrument Mode(仪表模式),点击OK,将光标移到In Service(工作模式)上,点击ENTER。
山武定位器在初次校验步骤:1.首先应该把手-自动A/M开关放在手动位置上,用平头螺丝刀逆时针转动180度。
DVC6000调试指南
阀门培训
ENTER
DVC6000校验
OK
阀门培训
欧姆龙贸易(上海)有限公司
DVC6030安装在角行程阀门上
欧姆龙贸易(上海)有限公司
DVC6000气路接口
阀门培训
欧姆龙贸易(上海)有限公司
DVC6000校验分解图
阀门培训
欧姆龙贸易(上海)有限公司
Digital Valve Controller – Basic Operation…
Terminal Box
Input Signal (4 to 20 mA) Digital Signal (HART Protocol)
• 安装在气关式阀门执行机构上
阀门培训
销钉位置
欧姆龙贸易(上海)有限公司
DVC6010安装在直行程阀门上
• 安装在气开式阀门执行机构上
阀门培训
销钉
欧姆龙贸易Leabharlann 上海)有限公司阀门培训DVC6010安装在直行程阀门上
A孔 B孔
重要提示:
1. 调整臂销
钉
必须置于 补 偿弹簧之 上 2. 销钉位置
对 应阀门行 程 行程小于 0.75in 定在 0.75in 上
欧姆龙贸易(上海)有限公司
DVC6010安装在直行程阀门上
• 安装在行程2-4寸阀门执行机构上
阀门培训
采用加长反馈臂和加长调整杆 欧姆龙贸易(上海)有限公司
阀门培训
DVC6020安装在直行程阀门上
欧姆龙贸易(上海)有限公司
阀门培训
DVC6020安装在角行程阀门上
欧姆龙贸易(上海)有限公司
阀门培训
双作用直行程执行机构
(Travel > 4 ”)
DVC6000系列定位器475手操器调试[专业参考]
专业参考
33
故障
1. 检查执行机构气管连接是否有漏气;
2. 检查定位器与反馈磁条或旋转型的凸轮 是否安装正确;
专业参考
34
3.填料压盖太紧或阀体
专业参考
35
专业参考
36
12
12. 选择Actuator Size(执行机构尺寸)的大 小。点击ENTER(回车)
专业参考
13
10.如果不是费希尔执行机构选择第一项,选 择最后一项(other);
专业参考
14
11. 选择了最后一项other;则进入下面菜单, 根据执行机构类型选择
专业参考
15
12. 选择阀门类型,选直行程
作用)
专业参考
9
9. 选择控制模式,选择行程控制(第一项)
专业参考
10
10.如果是费希尔执行机构选择第一项,不是 选择最后一项(other);
专业参考
11
11. 选择Actuator Model(执行机构型号)。如果执
行机构型号未出现在列表中,选Other(其它),点 击ENTER(回车)。
专业参考
专业参考
4
4. In Service(投用状态)/Out of Service(非投用状态); 选择第二项Out of Service(非投用状态);
专业参考
5
5. 选择控制模式,选择行程控制
专业参考
6
6. 选择压力单位
专业参考
7
7. 填写压力值(根据执行机构要求)
专业参考
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8. Relay Type(放大器类型)共有三种类型的放大器类型: A (双作用或者单作用)B(单作用,反作用)C (单作用,正
DVC6000阀门定位器指导手册第一页
Supply Pressure Alert Point ( Temperature,Internal ( Temperature Units ( Travel ( ) Travel Accumulator (
Travel Accumulator Alert Enable ( Travel Accumulator Alert Point ( Travel Accumulator Deadband ( Travel Alert Hi/Lo Enable ( Travel Alert High Point ( Travel Alert Low Point ( Travel Alert HiHi/LoLo Enable ( / !") Travel Alert High High Point ( Travel Alert Low Low Point ( Travel Alert Deadband ( Travel Cutoff High ( Travel Cutoff Low (
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DVC6000
DVC6000索引A 测试 2-10报警记录气动的清除 5-14 输出 2-8显示5-14,8-5 输入 2-8使报警块 5-14 排气口 2-9报警控制模式 5-4 显示报警级别 8-4 控制系统要求模拟输入 5-13 允许电压 2-12循环记数 5-13 HART过滤 2-11驱动信号 5-14 获得电压 2-11压力供应 5-14 循环记数行程积累 5-12 显示数值 7-14行程报警使报警 5-13高和低 5-11 重新设定 5-13高高和低低 5-12 D行程偏移 5-12 日期 5-6 7-13模拟调校 6-4 描述 5-16 7-13模拟输入设备信息 7-15 8-3校正 6-6 设备修改 7-15显示值 7-14 8-2 数字调节 6-5模拟输入单元 5-8 DIP开关设定 10-8自动校正位移 6-3 驱动信号错误信息 4-8 显示数值 7-14 8-2 模拟输入使报警 5-14 显示级别 7-14 8-2 DVC6000系列使报警 5-13 描述 1-2B 操作规则 9-2冲击模式说明 1-3 命令 5-4 F使能 5-4 反馈连接 5-8 冲击操作 2-15 软件修正 7-15 8-3C 自由时间校正显示数值 7-14 8-3模拟输入 6-6 自检失败 5-14自动校正位移 6-3 G手动校正位移 6-4 风表,堵头,橡胶阀压力传感器 6-7 更换 10-9位移传感器 6-9 H通信线缆 2-13 软件修正 7-15 8-3 连接 HART通讯器, 9-2 电子的 HART通信器动作键3-2 4---20mA 2-9 下降箭头 3-2 通讯 2-11 热键 3-3左键, 3-2 MON/OFF键 3-2 手动校正位移6-4右键,选择键 3-2 手动规范上升键 3-2 专家模块字母数字切换键 3-3 零件列表11-2设备描述修正 3-5 移去11-5显示 3-2 更换10-6动态表 3-2 最大供给压力5-8不在线菜单 3-4 信息5-6 7-13在线采单 3-5 最小关闭时间5-10在线模拟 3-5 最小打开时间5-10令牌 3-4 固定 2-2软件定义键 3-3 67CFR 2-6系统信息 3-5 DVC6010 2-2HART 过滤,部分号码 11-4 DVC6020 2-3HART 标签 5-6 7-13 DVC6030 2-5DVC 6000使用 2-15 O热键,HART 通信器 3-3 操作等级7-16 8-5I 输出压力,显示数值7-14 I/P转换器 P组成列 11-3 普通部分11-2拆卸 10-7 反馈部分11-3更换 10-7 风表,管堵头,橡胶阀11-3 更换过滤 10-7 HART过滤11-4初始安装 4-2 I/P转换器11-3自动校正位移 4-7 7-11 模块基体11-2自动安装 4-3 命令11-2工厂缺省设置 4-3 工具11-2手动安装 4-5 印刷电路板11-3优化4-9 7-12 延迟11-3输入特性5-9输入范围5-8仪表锁定设置5-14仪表等级7-15 8-3仪表模式4-2 5-3仪表系列号5-6 7-13仪表特征7-15 8-3内部温度显示数值7-14 8-2自检失败5-15L回路简图CSA,12-1FM,12-2终端盒,4-3 T温度单元控制系统设备特性调频,4-9 终端盒,顺向电压气动调节器部件列表, HART过滤器调节,6-2 撤换,电压变量部件列表,11-3 复位, Z撤换,10-9 行程显示值零点控制信号复位,10-9 行程累加器查询地址,5-6 显示值压力传感器校准,6-7 有效报警压力构件,4-5。
DVC6000 调试基本步骤
DVC6010 调试基本步骤:准备工作:定位器调试前必须已将机务阀杆与执行器输出推杆正确连接,并已将定位器反馈臂与执行器推杆上反馈用连接臂正确连接。
同时气源压力必须调整到正确值。
开度反馈如用T ri-Loop,必须先激活并已正确设置!机务阀杆与执行器输出推杆连接:因执行器为单作用下缸进气的气开式阀门(开时定位器反馈臂逆时针旋转向上),连接前要求机务将阀门门杆完全向下压倒底,保证阀门处于完全关闭状态。
直接向执行器气缸输入铭牌“BENCH SET:14 —30”中下限压力并适当放大1~2psi,然后将执行器输出推杆与机务阀杆连接。
连接后的理想状态是当气缸输入压力大于“BENCH SET:14 —30”中下限压力时能较快地开始开启,当气缸输入压力达“BENCH SET:14 —30”上限时能够全开。
定位器反馈臂连接:断开至执行器气缸气源,阀门处于全关状态,确认执行器输出推杆上反馈用连接臂已正确用螺丝固定,从定位器内部旋出连接用定位销,将定位销穿过定位器反馈臂上标记为“A”的孔(如是气关式则为“B”孔)并插入定位器壳体上的定位孔,使定位器反馈臂固定不动,根据铭牌“TRA VEL:3/4(inch)”中的执行器行程值,上下滑动调整调整臂与推杆上连接臂的位置,使调整臂在定位器反馈臂滑槽内对准有相应行程标注的数字刻度处,然后拧紧调整臂与推杆上连接臂的连接固定螺母。
注意,调整臂是将定位器反馈臂与执行器推杆上反馈连接臂的连接过渡。
气源压力调整:调整减压阀使气源压力闭执行机构要求的最大值(参考BENCH SET 上限)高0.3bar(5psi),注意此压力必须能使锁气器完全顶开,离开锁气状态。
按检修规程要求锁气器闭锁压力的调整一般不得低于0.3MPa。
Tri-Loop激活并设置:先通讯器连接DVC6000,ONLINE Setup&Diag Detailed Setup Mode Burst Burst Enable,设置成激活状态。
DVC6000系列定位器安装调校步骤
dvc6000系列定位器安装在直行程执行机构上的调教步骤1.参考调节阀铭牌信息了解以下参数的意义;a.TYPE——(执行机构类型)b. SIZE——(执行机构尺寸)c. TRA VEL——(执行机构行程)d. OPER RANGE——(压力操作范围)2.安装定位器(依照厂家图纸)a.打开定位器保护罩盖,在主模块靠近I/P转换器的地方取下左上角的“定位销”b.如果最大行程大于4英寸要采用“加长型反馈臂”和“调整臂”c.对于气开式执行机构(667),要把定位销插入标记为“A”的孔里d.对于气关式执行机构(657),要把定位销插入标记为“B”的孔里e.安装调整臂使其滑动,直到它的销子对准相应的“阀门行程标记”,然后旋紧带垫片的六角螺母。
f.取走定位销,把它放回主模块靠近I/P转换器的地方。
3.组态定位器参数a.利用手操器取消“组态保护”,设定为“NONE”,可以进行以下操作;当手操器显示“跳线”时,用一根短接线“短接AUX(辅助接线端子)”,按“OK”确认。
再断开,在按ok,手操器提示保护解除。
b.将“instrument mode 仪表模式”改为“非投用状态”,在校验和设定时必须改为“OUTOF SERVICE”c.进入“auto setup 自动设置”利用“setup wizard 设置诀窍”修改以下参数输入压力单位、执行机构设置、安装类型、等等。
d.也可以进入手动设置阀门的各种参数,详细见275、375手操器菜单。
4.校验(自动校验1-4-2)a.如果定位器不能被校验,可以通过“restore calibration”“1-4-6”恢复到出厂设定。
b.如果反馈杆是“sstem-standard 滑杆-标准”时需要调整交叉点,其他两种方式“旋转、滚轮”不需要。
调整好交叉点后便可进入“AUTO CALIB Traver”,手操器会提示你自动校验行程。
c.调整交叉点可以选择“手动、前次值、缺省值”,如果选择“手动”则会提示你选择调整源是“模拟”或“数字”。
费希尔DVC6000系列定位器的调校
费希尔DVC6000系列定位器的调校用HART手操器进行调校:①从On line(在线)菜单里选择Setup&Diag(设置和诊断)——Basic setup(基本设置)——Manual setup(手动设置)——Instrument Manual(仪表模式)——Out of service(非工作状态)。
②Basic setup (基本设置)——Auto setup (自动设置)——Auto Calib Travel(自动校验行程)剩余的自动校验步骤是自动进行的。
自动校验完成后,HART会提示您将仪表设置到In Service(投用状态)。
③如果在完成基本设置和校验之后,阀门还是振荡或过调(不稳定),或响应不灵(响应缓慢),您可以Auto Setup (自动设置)菜单中Performance Tune (性能优化整定)或Stabilize/Optimize(稳定/优化)改善调试结果;其中有两种选择:Standard(标准)、Advanced(高级)。
在Standard(标准)中如果阀门工作不稳定,用Decrease Response(削弱响应)来使阀门工作稳定;如果阀门响应缓慢,用Increase Response(增加响应)来使阀门响应灵敏。
如果用Decrease Response或Increase Response后阀门超调还是很严重,需要选择Advanced(高级)项,除了Decrease Response(削弱响应) 和Increase Response(增加响应),还有Decrease Damping(降低阻尼) 选择允许阀门有更多过调的阻尼值和Increase Damping(增加阻尼) 选择减少阀门过调的阻尼值。
④对于FISHER DVC6000系列数字阀门定位器,典型的安装调试方式为:从On line(在线)菜单里选择Setup&Diag(设置和诊断)——Basic setup(基本设置) ——Auto setup (自动设置) ——Setup Wizard(设置诀窍),首先是选择所调试的执行机构制造商或执行机构型号,如果在Setup Wizard(设置诀窍)中没有列出,就选择Other(其它)来作为执行机构制造商或执行机构型号,被提示设定的参数如下:Actuator Type(执行机构类型)选项如下:Spring&Diaphragm(弹簧膜片式)、Piston Double-acting without spring(无弹簧双作用气缸式)、PistonSingle-acting with spring(带弹簧单作用气缸式)、Piston Double-acting with spring(带弹簧双作用气缸式)。
FisherDVC6000阀门定位器作业指导书
Fisher DVC6000阀门定位器作业指导书1 目的1.1 为规范北海炼化调节阀DVC6000定位器相关检维修作业行为,提高检维修工作效率,确保检维修工作质量,避免检维修作业中的错误与失误,强化维修人员的故障处理能力,特制订此作业指导书。
1.2 本作业指导书为所有参加本作业人员所共同遵守的质量保证程序。
2 适用范围本作业指导书主要适用于北海炼化配装DVC6000定位器的调节阀检维修后的调校指导。
3 人员要求及职责分工3.1 作业人员要求要求取得北海炼化仪表维护上岗证,具备相应职业资格能力的化工设备检维修人员,作业现场要求至少有两名以上作业人员。
3.2 作业人员职责3.2.1作业人员职责负责联系运行部相关人员确认现场作业条件;负责按仪表检维修作业要求完成整个作业过程现场检维修作业;3.2.2 监护人员职责负责现场检维修作业人员整个现场检维修作业过程的监护;确保作业过程中其他设备及工艺操作不受影响;对现场作业人员安全具有监护职责。
3.2.3 作业质量验收人职责负责确认检维修作业是否完成及检维修设备投用是否正常,并填写完成票证相关内容。
4 工器具及备件材料准备及要求仪表现场维修常用工具一套,数字万用表一台,375或475手操器一台(已安装FisherDVC6000相关DDV文件)。
5 技术要求及质量标准模拟输入信号:DC4-20mA(HART协议),最小控制电流4mA ,不至引起微处理器重启最小电流3.5mA,最大电流30VDC,带过载电流保护。
输出信号:为执行机构要求的气动信号,最大可达气源压力的95%。
作用:双作用,单作用正作用式和单作用反作用式气源压力:比执行机构要求的压力高0.3bar(推荐值),最大值为10.3bar或执行机构最大压力额定值(取两者中较低者)环境温度:-40℃至85℃防爆:本安型防护等级:IP656作业风险危害识别及安全措施7 作业过程及调校步骤7.1 准备工作使用手操器前,需将电池充满。
DVC6000详细培训教程资料
DVC6000详细培训教程资料一、DVC6000概述二、DVC6000特性和功能1.位置反馈:DVC6000通过内置的位置传感器提供精确的位置反馈,以实现精密控制。
2.高速控制:DVC6000具有快速而准确的响应能力,可适应高速流程调节控制要求。
3. 通信接口:DVC6000支持多种通信接口,包括HART、FOUNDATION Fieldbus和Profibus PA,以实现与其他设备的无缝集成和数据交换。
4.远程设置和监测:DVC6000支持远程设置和监测功能,使用户能够远程配置和监测阀门的性能。
5.仿真模式:DVC6000具有仿真模式,可用于检查和验证控制环路的性能,提高系统的可靠性和稳定性。
6.自诊断功能:DVC6000具有自动诊断功能,能够检测和报告阀门的故障和异常情况。
三、DVC6000使用步骤1.安装和连接:根据DVC6000的安装手册,正确安装和连接DVC6000控制器和阀门。
确保所有的电气和气动接口都正确连接,并采取适当的防护措施。
2.配置和校准:使用DVC6000的配置工具,配置控制器的工作参数和控制算法。
校准位置传感器,确保精确和准确的位置反馈。
3.集成和控制:使用适当的通信接口,将DVC6000集成到系统中。
使用控制软件,对DVC6000进行编程和控制,实现阀门的准确运动和位置控制。
4.监测和诊断:使用DVC6000的监测工具,监测和诊断阀门的性能和状态。
根据需要,进行故障排除和维护。
四、DVC6000故障排除和维护1.故障排除:如果遇到DVC6000的故障或异常情况,首先使用DVC6000的自诊断功能进行故障排查。
根据诊断结果,采取适当的措施进行修复或更换故障部件。
2.维护和检修:定期检查DVC6000的电气和气动接口,确保其正常工作。
清洁和润滑移动部件,确保阀门的顺畅运动。
根据需要,更换磨损或老化的部件。
1.DVC6000产品手册:包括产品的技术规格、功能和特性的详细介绍。
费希尔DVC6000的基本设置与行程校验
औᐺ!!DVC ࡼ۾ᒙᎧቲ߈ቅዩগၤ本章介绍对DVC6000进行基本设置与自动行程校验的步骤。
छඡቲ߈ቅዩ۾ݛᒾ对DVC6000进行自动行程检验的基本步骤:1. 确保DVC6000正确地安装在执行机构上。
参见DVC6000系列数字式阀门控制器操作手册中有关DVC6000安装 的章节。
2.把375与DVC6000的通讯线缆连接起来,见第一章。
3.给DVC6000提供4-20mA 的电流,并给仪表供气。
4.启动375手操器(参见第一章),ྜྷጥܭOnline )Ᏼሣ*!ݩ。
5.把DVC6000ጥܭෝါ设置为Out of Service (非投用状态)。
6.利用Setup Wizard )ᒙሶࡴ*,对DVC6000进行基本设置。
参见第2-2页上的Setup Wizard (设置向导)。
如果之前已经对DVC6000进行过设置,如DVC 与阀门都是由Fisher 公司提供的,这一步可以忽略,直接执行 下一步。
7.双作用执行机构需要对DVC6000的放大器进行调整,见第四章。
如DVC 与阀门都是Fisher 提供,或单作用执 行机构忽略这一步,直接执行下一步。
8.进行自动行程校验。
参见第2-9页上的Auto Travel Calibration (自动行程校验)。
进入仪表Online (在线)菜单按第一章里的图1-9所示,将375手操器与DVC6000的通讯线路连接好,并给仪表供电。
打开375手操器,双击主菜单里的HART Application (HART 应用)菜单,稍等片刻,如果375手操器可以找到仪表,它就会显示仪表的位号与该HART 仪表的Online (在线)菜单,如图2-1所示。
如果375手操器找不到仪表,按照375手操器的提示解决问题,然后重新进入HART 应用。
ᅄ2-1. HARTጥܭᏴሣݩ2ᓖፀǖ当375进入Online (在线)菜单之后有时候会出现如图2-2的屏幕提示,这是因为系统设置或者报警内存等原因,设备提示诸如报警非空或者系统时间无效等。