WT-210数字功率计操作手册
（最新整理）传输仪表2M表、光功率计使用方法
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常用传输测试仪表的使用方法及注意事项一、传输测试2M表（一）W ET-210B 2Mbit/s数字传输分析仪使用方法和应用举例2Mbit/s数字传输分析仪适用于数字传输系统的工程施工、工程验收、日常维护及科研测试。
1．面板说明POWER PATTERN FAS ERRSIGNAL AIS CRC ERRFRAME RA EBIT ERRMFRAME MRA PATSLIPCRC-4 CODE ERR BIT ERRHISTORY HISTORY HISTORYPOWER 电源工作状态指示.绿色表示正常工作；红色表示欠电压，需充电；橙色表示正在充电。
SIGNAL RX1端口或DATA端口信号状态指示。
红色表示无接收信号或不成环路状态。
FRAME RX1端口信号帧同步状态指示。
红色表示帧同步丢失。
MFRAME RX1端口信号复帧同步状态指示。
红色表示复帧同步丢失.CRC—4 RX1端口信号结构指示.红色表示有CRC-4校验码插入。
PATTERN RX1端口或DATA端口信号图案同步状态指示。
红色表示图案同步丢失。
AIS RX1端口或DATA端口输入信号告警指示.红色表示端口信号输入有告警.RA RX1端口输入信号远端帧告警。
红色表示远端帧丢失。
MRA RX1端口输入信号远端复帧告警。
功率计操作规程
******有限公司功 率 计 操 作 规 程编号：1、目的：为保证公司广大员工正确使用功率计，避免仪器和产品因使用不当而造成的损坏，提高产品测试数据的有效性、真实性、准确性。
2、适用范围：用于对产品进行规定的交流功率、电流的测试。
3、略图及各部位名称： 前面板（如图1）1、远端控制状态；2、窗口1/功率显示窗；3、状态指示灯；4、电源开关；5、单位指示灯；6、窗口3/电流显示窗；7、窗口2/电压/功因/频率显示窗；8、功能按键；9、单位及状态指示灯；10、保险丝座；11、输入电压及输出负载端子图1后面板（如图2）图2配线（如图3）使用比流器时（如图4）4、操作4.1 设定传输速率 ( Baudrate )4.1.1 按下[Baud]，窗口2 显示 BAUD，窗口3 显示上次设定值，若持续 5 秒没有按键，则回到先前的测量模式。
亦可直接按[Back]键，立即回到测量模式。
4.1.2 根据以下步骤设定所需之数值，例1200：―按下 [1] 此时显示 1 - - -。
―按下 [2] 此时显示 12 - -。
―按下 [0] 此时显示 120 -。
―按下 [0] 此时显示 1200 。
图3图44.1.3 若有错误，按 [Back] 清除前一位数。
4.1.4 若无错误按 [ENTER] 储存数据后，立即回到测量模式。
4.2 设定地址 ( Address )4.2.2 根据以下步骤设定所需之数值，例10：4.2.3 若有错误，按 [Back] 清除前一位数。
4.2.4 若无错误按 [ENTER] 储存数据后，立即回到测量模式。
4.3 设定比压器倍数 ( PT Ratio )4.3.3 若有错误，按 [Back] 清除前一位数。
4.3.4 若无错误按 [ENTER] 储存数据后，立即回到测量模式。
4.4 设定比流器倍数 ( CT Ratio )4.4.3 若有错误，按 [Back] 清除前一位数。
4.4.4 若无错误按 [ENTER] 储存数据后，立即回到测量模式。
WT210外接传感器操作
1、接线注意
注意使用外部传感器输入时，电流直接输入端不能接电流信号进去。
即电流直接输入端和电流传感器输入端不能同时接测试信号。
2、设置
当使用外部传感器元件时的测试范围与量程转换的设定方法
操作流程：
先选择外部传感器元件输入功能；选择外部传感器元件的倍率；
如图前面板所示按键
（1）设定外部传感器输入的缩放系数
按键1“setup”——翻页选择键3使得（显示C）“EIN”——按确认键4“Enter”——选择系数“E50.00(显示C)——“Enter”
（2）选择电流测量范围（量程转换功能开启）
选用/EX1配备时
按量程范围选择键2“CURRENT”——按翻页键3选择（显示C）“E10/E5/E2.5（单位V）”——按确认键4“Enter”
选用/EX2配备时
按量程范围选择键2“CURRENT”——按翻页键选择（显示C）“E290/E100/E50（单位mV）”——按确认键4“Enter”。
数字功率计WT210数据串口读取
1.设备端口
DB-25母串口接口
与功率计相连插头选用25针公接头，引脚说明如下图
2.计算机端口
DB—9针公端口，引脚说明如下
选用DB-9针母端口与计算计连接
3.串口线连接
DB-25针端口与功率计连接，DB-9针母端口与计算机连接，按照DB-25与DB-9端口对应信号线连接，注：由于是数据传输，所以DB-25TXD、RXD与DB-9TXD、RXT交叉连接4.功率计设置
4.1设定输出项目
CH1 V 电压
CH2 A 电流
CH3 P 功率
CH4 PH 总瓦时（WH）
输出项目设定操作步骤：
4.2串口参数设置
程序使用参数：
只讲模式LONELY
握手协议HAND0（表示无握手协议）
数据格式FOR_0
波特率B_9600
结束符LF（\n）
设定时间间隔00.00.00（按显示更新周期输出数据）或00.00.01（每秒输出1次数据）
5.计算机程序参数设置
6.在VISA READ----字节总数端加入属性节点可以避免出现关于串口
缓存的错误
注：本程序只实现测试数据的读取功能，更高级的功能不包含在本程序中
程序框图
字符串转换为数字子程序
主程序。
功率计操作说明
功率计操作说明一、简介功率计是一种用于测量电力和功率的仪器。
它能够准确测量电流、电压和功率因数等参数，并可以通过显示屏或接口输出结果。
本文将详细介绍功率计的操作方法，帮助用户正确、高效地使用功率计。
二、准备工作在操作功率计之前，需要进行以下准备工作：1. 仔细阅读功率计的用户手册，了解仪器的功能和特性。
2. 确保功率计的电源连接正常，并保证电源电压稳定。
3. 准备好测试电路，确保电路正常并与功率计连接良好。
三、功率计操作步骤1. 打开功率计电源开关，并等待仪器启动。
通常会有一个启动时间，请耐心等待。
2. 设置测试参数。
使用功率计的功能按钮或旋钮，选择要测量的电流范围、电压范围和功率因数等参数。
根据具体需要，还可以设置测量精度和显示方式等。
3. 连接测试电路。
将功率计的输入端与待测电路相连，确保连接牢固、稳定。
4. 确认测量准确性。
在进行正式测量之前，可以使用已知电流、电压等参数进行校准，以确保测量结果的准确性。
5. 开始测量。
按下开始测量按钮或启动测量命令后，功率计开始采集数据并计算结果。
在测量过程中，保持待测电路的稳定，并避免其他干扰因素的影响。
6. 结束测量。
当完成所需的测量任务后，及时停止测量，并将功率计设备关闭。
四、数据处理与结果展示1. 数据处理。
功率计通常会提供数据处理功能，可以对采集的数据进行滤波、平均等处理，以提高测量结果的可靠性。
2. 结果展示。
功率计可以通过内部显示屏或连接到计算机等方式展示测量结果。
用户可以根据需要选择合适的方式进行结果展示，并进行必要的数据记录和存储。
五、注意事项1. 操作安全。
在使用功率计时，务必遵守相关的安全操作规程，确保自身和设备的安全。
2. 环境条件。
保持测试环境干净、整洁，并避免有害气体、尘埃等对测量结果的干扰。
3. 仪器保养。
定期清洁和校准功率计，以保证其测量准确性和稳定性。
4. 避免超过额定参数。
在测试时，避免超过功率计的额定电流、电压等参数，以免对仪器造成损坏或不准确的测量结果。
WT-210数字功率计操作手册课件
2.
AN:说明设置的电流量程或电压量程太小。需要按VOLTAGE或CURRENT进行
重新设置量程,一般EE或Power工程师借过去debug或分析回路功率时会选择比精确
的量程,故会将量程设得很小。
1. 3. 电流或电压的值很小，只有0.003W左右（理论上应是0.1W左右）?
2.
AN:说明AVG平均电压功能被开启，所测的值是平均值。解决的方法是进
DC，0.5Hz～100kHz 基本精度(45Hz＆le;频率f＆le;66Hz)
电压/电流：＆plusmn;（读数的0.1％＋量程的0.1％） 功率：＆plusmn;（读数的0.1％＋量程0.1％）
一般规格 外型尺寸：
WT210: 约213(宽)＆times;88(高)＆times;379(深)mm (突出份除 外)
Selecting the Voltage Range /选择电压量程
1.按下
VOLTAGE,就会出现电压量程选择菜单,显示电压的显
示屏上的值就会一直跳动.
2.按向上或向下键则,可改变电压量程,当一直按向上会选到AUTO, 此时,电压选项上面的AUTO指示灯会亮起.说明此时选择是自动调 整.
3.按下ENTER键,可以确定下电压WT量-21程0数. 字功率计操作手册
SETUP的AVG项，选择off。功率计面板上的AVG项绿灯就会熄灭，此时就是我们
需要测试的峰值数据。（备注：这项测试平均值，每次测试前均要确认一下是否被开启，以
免测试错误。）
1. PS：WT-210 使用说明书
WT-210数字功率计操作手册
Thank you !
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当峰值因数CF选择为3时,量程为15~600V,当CF=6时,量程范围为7.5~300V
日本横河WT210概要
日本横河WT210概要
WT210和WT230是一种体积轻巧、半机架大小的功率计。
它们改进了基本精度和带宽，广泛应用从低频设备到变频器的功率测量。
另外，WT210拥有和WT200一样的5MA电流输入量程，可以测量节能设计和间歇工作设备中的微小电流。
日本横河WT210功率计特点
﹒确保精度的最大输入：26A
﹒测量极小电流的5MA量程(仅WT210)
﹒线路滤波功能
﹒高速数据更新(10次/秒)
﹒谐波测量功能(选件)
﹒用户校准功能
﹒使用外部传感器输入可测量大电流(选件)
日本横河WT210功率计基本规格
﹒电压量程：(峰值因数3)电压：15/30/60/150/300/600V
﹒电流量程：(峰值因数3)直接输入：5M/10M/20M/50M/100M/200MA
0.5/1/2/5/10/20A(WT210)
0.5/1/2//5/10/20A(WT230)
外部传感器输入(选件)：2.5/5/10V或50/100/200MV
﹒频率范围：DC、0.5HZ~100KHZ
﹒基本精度(45HZ≤F≤66HZ)电压/电流/功率±(读数的0.1%+量程的0.1%)
﹒功率因数的影响(COSф=0)加量程的±0.2%
﹒外部尺寸：约213(W)×88(H)×379(D)MM(WT210)
约213I(W)×132(H)×379(D)MM(WT230)
﹒重量：约3.0KG(WT210)约5.0KG(WT230)。
WT-210说明书
DC0~10mA、DC4~20mA (输入阻抗≤250Ω) DC0~10mA、DC4~20mA (输入阻抗≤250Ω)
DC0~10mA 开关量输出: 馈 电 输出: 脉冲输出: 通 3、精 度 模拟量测量显示精度: 脉 4、显示方式 -19999~99999 冲测量显示精度: 0.5% 讯:
(负载阻抗≤1000Ω)
DC0~20mA、DC4~20mA (负载阻抗≤750Ω) 继电器触点输出 200V/1A(阻性负载,内部电火花消除电路) DC24V/50mA 或 DC12V/50mA 隔离 NPN 或 DC24V 方波 RS232/485 Modbus（RTU）通讯协议
±1 脉冲,平均为 0.2%
可选显示瞬时流量、流量(差压、频率)、温度、压力、本次累积
19 20 23 25 25 26 35 38 38 39 40 41
2
Hale Waihona Puke 一、技术指标WT210 系列流量积算仪，可与线性流量信号、差压流量信号、频率流量信号等各种传感器配合使用主要用 于测量和显示瞬时流量，并可以对流量进行温度/压力补偿运算。广泛应用于化工、冶金、石油、电力、水利、制 造等部门。其中： WT210 用于测量非补偿的介质流量。 （常温常压的水 等） WT211 用于测量饱和蒸汽或过热蒸汽。 WT212 用于测量非蒸汽需要补偿的介质。 （煤气、压缩空气等） 1、输入信号 流 量信号: DC0~5V、DC1~5V 矩形脉冲 补偿压力信号: DC0~5V、DC1~5V 补偿温度信号: DC0~5V、DC1~5V 热电阻 PT100、电偶 K、E 2、输出信号 模拟量输出: DC0~5V、DC1~5V (负载阻抗≥250KΩ) (输入阻抗≥250KΩ) (频率范围 0~10KHz、幅度≥4V) (输入阻抗≥250KΩ) (输入阻抗≥250KΩ) DC0~10mA、DC4~20mA (输入阻抗≤250Ω)
诺科瓦拉 WT210 WT230 能源节约工具数字采样功率计说明书
WT230WT210130% input1% inputFunctions and Features of the WT210 and WT230● A Wide Frequency Range Lets You Work on a Variety of Different Applications2: Conditions apply to accuracy from 110% to 130%.● Powerful Tools for Energy Measurement● Wide range of 5 mA to 20 AThe built-in 5 mA range lets you measure currents as low as 25 µA. This makes it possible to measure very low currents on such things as intermittent control equipment. The wide current range (5 mA to 20 A) means a single power meter can be used for applications such as Energy Star® measuremnts, to measure everything from standby-power to rated-power.GP-IB/serial interface (RS-232-C)ExternalD/A outputComparator outputRecorderClamp probe The WT230’s advanced specifications and its wide range of functions let you handle all your measurement applications from low-frequency equipment to high frequency inverters using a single power meter.One unit also handles standby low-power measurements and rated-power measurements (functions available with the WT210 only).960 01751552N E W wareSoft Fr ee WTViewer for the WT210/WT230Easily Acquire and Manage Power Measurement Data from Your PCSee 8 pages orBulletin 7604- 32E for details.5ParameterVoltage15/30/60/150/300/600 VInput resistance: Approximately 2 M ΩInput capacitance: Approximately 13 pF Peak voltage of 2.8 kV or rms value of 2.0 kV (whichever is less)Peak voltage of 2.0 kV or rms value of 1.5 kV (whichever is less)Peak voltage of 1.5 kV or rms value of 1.0 kV (whichever is less)600 Vrms (with output connector protective cover), CA T II / 400 Vrms (without output connector protective cover) CA T II50/60 Hz, -80 dB or higher (±0.01% of range or less) with voltage input terminals shorted and current input terminals open and external input terminals shorted Reference value (up to 100 kHz): ±((Maximum range rating)/(Range rating) × 0.001 × f% of rng) or less (voltage range and 0.5-20 A current range and external input range 3)±((Maximum range rating)/(Range rating) × 0.0002 × f% of rng) or less (WT210; 5-200 mA range)Note: 0.01% or higher. f is in kHz. 3 Decuple the above-formula about the external input range.Resistance voltage dividerCurrentShunt input system Direct input:5/10/20/50/100/200 mA (WT210 only)1; 0.5/1/2/5/10/20 A (WT210/WT230)External input (optional): 2.5/5/10 V or 50/100/200 mVDirect input:Approximately 500 m Ω + approximately 0.1 µH (5-200 mA; WT210)Approximately 6 m Ω + 10 m Ω (max)2 + approximately 0.1 µH (0.5-20 A; WT210)Approximately 6 m Ω approximately 0.1 µH (0.5-20 A; WT230)External input: Approximately 100 k Ω (2.5/5/10 V), approximately 20 k Ω (50/100/200 mV)0.5-20 A (WT210/WT230): Peak current of 450 A or rms value of 300 A (whichever is less)5-200 mA (WT210): Peak current of 150 A or rms value of 100 A (whichever is less)External input: Peak value of 10 times range or less0.5-20 A (WT210/WT230): Peak current of 150 A or rms value of 40 A (whichever is less)5-200 mA (WT210): Peak current of 30 A or rms value of 20 A (whichever is less)External input: Peak value of 10 times range or less0.5-20 A (WT210/WT230): Peak current of 100 A or rms value of 30 A (whichever is less)5-200 mA (WT210): Peak current of 30 A or rms value of 20 A (whichever is less)External input: Peak value of 5 times range or lessInput typeRated values (ranges)Measuring instrument loss (input resistance)Maximum instantaneous allowed input (1 cycle, 20 ms duration)Maximum instantaneous allowed input (1 second duration)Maximum continuous allowed inputMaximum continuous common mode voltage (with 50/60 Hz input)CMRR600 Vrms across input terminal and caseFloating inputInput SpecificationsPlug-in terminal (safety terminal)Direct input: Large binding postExternal input: BNC connector (insulation type)Input terminal type A/D converterSimultaneous conversion of voltage and current inputs Resolution: 16 bitsMaximum conversion speed: Approximately 20 µs (approximately 51 kHz)Range switchingRanges can be set manually, automatically, or through online controls. Auto-range functionRange raising: When a measurement exceeds 130% of the rating, or when the peak value exceeds approximately 300% of the ratingRange lowering: When a measurement falls to 30% or less of the rating, and the peak value falls to approximately 300% or less of the rating for the low range Measurement mode switchingAny of the following, selected manually or through online controls: RMS (true rms value measurements for both voltage and current), V MEAN (calibration of average-value-rectified rms value for voltage; true rms value measurement for current), DC (simple averages for both voltage and current)Note: Current direct input and external sensor input cannot both be used at the same time. When you operate current input terminals and external input terminals, please be careful.Since these terminals are electrically connected inside the instrument.1, Connect wires that match the size of the measurement current.2, Factory settingParameterVoltage/currentDC:0.5 Hz ≤ f < 45 Hz:45 Hz ≤ f ≤ 66 Hz:66 Hz < f ≤ 1 kHz:1 kHz < f ≤ 10 kHz:10 kHz < f ≤ 100 kHz:* Add ±10 µA to the current DC accuracy.1-130% of voltage/current range rating (for accuracy at 110-130%, add the reading tolerance × 0.5 to the above accuracy) Add the accuracy's reading tolerance (three months after calibration) × 0.5 to the accuracy three months after calibration.A low-pass filter can be inserted in the input circuit for measurement. The cutoff frequency (fc) is 500 Hz.Voltage and current: Add 0.2% of rdg at 45-66 Hz. Add 0.5% of rdg below 45 Hz.Power: Add 0.3% of rdg at 45-66 Hz. Add 1% of rdg below 45 Hz.±0.03% of range/°C at 5-18°C and 28-40°C.0.1/0.25/0.5/1/2/5 secondsData updating rate0.1 second 0.25 second 0.5 second 1 second 2 seconds 5 seconds Measurement lower limit frequency25 Hz10 Hz5 Hz2.5 Hz1.5 Hz0.5 Hz±(0.2% or rdg + 0.2% of rng)*±(0.1% of rdg + 0.2% of rng)±(0.1% of rdg + 0.1% of rng)±(0.1% of rdg + 0.2% of rng)±((0.07 × f)% of rdg + 0.3% of rng)±((0.5% of rdg + 0.5% of rng) ±((0.04 × (f-10))% of rdg)Active powerDC:0.5 Hz ≤ f < 45 Hz:45 Hz ≤ f ≤ 66 Hz:66 Hz < f ≤ 1 kHz:1 kHz < f ≤ 10 kHz:10 kHz < f ≤ 100 kHz:* Add ±10 µA × voltage reading to the power DC accuracy.For cos ϕ = 045 Hz ≤ f ≤ 66 Hz: ±0.2% of VA (VA is a reading value of apparent power)Reference data (up to 100 kHz): ±((0.2 + 0.2 × f)% of VA)Indicated value tolerance for 0 < cos ϕ < 1Add (tan ϕ × (effect when cos ϕ = 0)% of power reading to the above power accuracy.Note: ϕ is the phase angle between voltage and current.±(0.3% or rdg + 0.2% of rng)*±(0.3% of rdg + 0.2% of rng)±(0.1% of rdg + 0.1% of rng)±(0.2% of rdg + 0.2% of rng)±(0.1% of rdg + 0.3% of rng) ±((0.067 × (f-1))% of rdg)±(0.5% of rdg + 0.5% of rng) ±((0.09 × (f-10))% of rdg)SystemFrequency range Crest factorAccuracy (three months after calibration) (Conditions)T emperature: 23±5°C Humidity: 30-75% RHInput waveform: Sinewave Power factor: cos ϕ = 1 In-phase voltage: 0 V DCFrequency filter: ON at 200 Hz or less Scaling: OFFDisplay digits: 5 digits After CAL is executedNote: In the accuracy calculation formula, f is in kHz.Power factor effectNote: In the accuracy calculation formula, f is in kHz. Effective input rangeAccuracy (12 months after calibration)Line filter functionAccuracy with line filter on T emperature coefficient Display updating intervals Measurement lower limit frequencyDigital sampling; sum of averages methodDC, and 0.5 Hz to 100 kHz3 (with rated input) 300 (with minimum effective input)Measurement Functionsrng: Range rdg: ReadingLead/lag is detected correctly when phase difference equal to or greater than ±5° with both voltage and current inputs as sine waves equal to or greater than 50% of rated range-value, and the frequency is between 20 Hz to 2 kHz.Lead/lag detectingThe latest product information is available at our web site /tm/. Review the specifications to determine which model is right for you.Frequency MeasurementsMeasurement inputs :V1, V2, V3, A1, A2, or A3 (select one)Measurement system :Reciprocal system Measurement frequency ranges100 ms:25Hz ≤ f ≤100 kHz 250 ms:10Hz ≤ f ≤100 kHz 500 ms: 5Hz ≤ f ≤100 kHz 1 sec: 2.5Hz ≤ f ≤100 kHz 2.5 sec:1.5Hz ≤ f ≤50 kHz 5 sec:0.5Hz ≤ f ≤20 kHzAccuracy:±(0.06% of rdg)Conditions:Input equal to at least 30% of voltage/current rated range.Frequency filter function ON at 200 Hz and below.Frequency filter cutoff frequency: 500 HzCommunication Functions (Optional for the WT210)GP-IB or serial interface (RS-232-C) (select one)GP-IBElectrical and mechanical specifications:Conform to IEEE Standard 488-1978 (JIS C1901-1987).Functional specifications:SH1, AH1, T5, L4, SR1, RL1, PR0, DC1, DT1, C0Protocol:Conforms to IEEE Standard 488.2-1992.Code used:ISO (ASCII) code Addresses:0-30 talker/listener addresses can be set.Serial interface (RS-232-C)Transmission mode :Asynchronous Baud rates:1200, 2400, 4800, 9600 bps62333Single-phase 3-wire Three-phase 3-wire (2 voltages, 2 currents)Three-phase 3-wire (3 voltages, 3 currents)Three-phase 4-wireVoltage ∑V (V1 + V3)/2(A1 + A3)/2W1 + W3(V1 + V2 + V3)/3(A1 + A2 + A3)/3W1 + W2 + W3var1 + var2 + var3VA1 + VA2 + VA3Current ∑A Active power ∑WPower factor PF , ∑PF Phaseangle deg, ∑degdegi =cos -1 (Wi/VAi)Reactive power var, ∑var Apparent power VA, ∑VA vari = (VA 2 - W 2)VAi = Vi × Ai Pfi = Wi/VAi ∑W/∑VA cos -1 (∑W/∑VA)VA1 + VA3var1 + var3(VA1 + VA3)(VA1 + VA2 + VA3)Notes1.This equipment's apparent power (VA), reactive power (var), power factor (PF),and phase angle (deg) are calculated from voltage, current, and active power.(Therefore, if the input contains a distorted wave, the values may not match those of other measuring instruments based on different measurement principles.)2.If either voltage or current falls to 0.5% of the range rating or less, then the apparent power (VA) and reactive power (var) are displayed as zero, and errors are displayed for power factor (PF) and phase angle (deg).3.The sign of the var of each phase is displayed with +(positive). In the ∑var calculation, the var value for each phase is calculated with a negative sign if the current input leads the voltage input, and with a positive sign if the current input lags the voltage input. Then the value of ∑ var may be displayed with –(negative).4.Apparent power (VA) and reactive power (var) cannot be calculated and displayed at the harmonics measurement mode.Display FunctionsDisplay unit:7-segment LED (light-emitting diode)Display areas:3V , A, W, VA, var (for each element), integration elapsed timeV , A, W, PF , deg (for each element, percentage (content percentage, THD)V , A, W, V/AHz, Vpk, Apk, ±Wh, ±Ah (for each element), MA THDisplay areaA B CDisplayed informationMeasurement parameters Maximum display Display resolutionV , A, W, VA, var PF deg ±Wh, ±AhVHz, AHz 99999±1.0000±180.0999999999990.001%0.01%0.1*0.0001%Input frequency/20,000Display digits: 4 or 5 digits (selectable by user).Factory default setting is 5 digits.Units:m, k, M, V , A, W, VA, var, Hz, h ±, deg, %Display updating intervals: 0.1/0.25/0.5/1/2/5 seconds Response time:Maximum 2 times the display updating interval (time requiredfor display value to enter accuracy range of final value with line filter off, when range rating abruptly changes from 0% to 100%,and from 100% to 0%)Maximum display:140% of voltage/current range rating Minimum display:About Vrms, Arms, and Ah, 0.5% of range rating.Less than 0.5% is zero suppression.Display scaling functionEffective digits:Selected automatically according to the digits in the voltage andcurrent ranges.Setting range:0.001 to 9999Averaging functionThere are two averaging methods (selectable by user):Exponential average Moving averageIn cases where response can be set and exponential average is used, the attenuation constant can be selected. In cases where a moving average is used, the number of averages N can be selected from 8, 16, 32, and 64.Auto-range monitorAn LED turns on when the input value is outside the range set for the auto-range.MAX hold functionThis function can be used to hold V, A, W, VA, var, Vpk, and Apk at maximum values.MA TH functions System:When a function key on DISPLA Y C is pressed to select theMATH functions, it is possible to perform efficiency (WT230 only)and input crest factor measurements, as well as arithmetic calculations on DISPLAY A and B measurements. In addition, it is possible to display average active power for time-converted integrated power.Integration FunctionsDisplay resolution:The minimum display resolution changes together with the integrated value.Maximum display:-99999 to 999999 MWh/MAhModes:Standard integration mode (timer mode), continuous integration mode (repeat mode), manual integration modeTimer:Automatic integration start/stop based on timer setting.Setting range: 000 h:00 min:00 sec to 10000 h:00 min:00 sec (If the time is set to zero, manual mode is automatically set.)Count over flow:When the integrated value exceeds 999999 MWh/MAh or falls to at least -99999 MWh/MAh, the elapsed time is saved and the operation is stopped.Accuracy:±(display accuracy + 0.1% of rdg)Timer accuracy:±0.02%Remote control:Starting, stopping, and resetting can be controlled through external contact signals. This function is only available when option /DA4, /DA12 or /CMP is installed.Calculation FunctionsInternal Memory FunctionsMeasurement dataStored data WT210 (760401)WT230 (760502)WT230 (760503)Normal measurement Data for 600 samples Data for 300 samples Data for 200 samplesHarmonic measurement Data for 30 samples Data for 30 samples Data for 30 samplesStore interval:Display updating interval and 1 second to 99 hours, 59 minutes,and 59 secondsRecall interval:Display updating interval and 1 second to 99 hours, 59 minutes,and 59 seconds(Both can be set in 1-second increments.)Panel setting information :Four different patterns of panel setting information can be written/read.Harmonic Measurement Function (optional)System:PLL synchronization Measurement frequency range:Fundamental frequency in range of 40-440 HzMaximum display:99999Display digits: 4 or 5 digits (selectable by user).Factory default setting is 5 digits.Measurement parameters: V , A, W, deg (WT210), V1, V2, V3, A1, A2, A3, W1, W2,W3, deg1, deg2, deg3 (WT230), individual harmonic levels, rms voltage, rms current, active power, fundamental frequency PF ,harmonic distortion rate, individual harmonic contentMeasurement element: These parameters can only be measured simultaneously fora single specified input element.Sampling speed, window width, and analysis ordersThe values for these parameters vary according to the input fundamental frequency as shown below.Fundamental frequency Sampling speed Window width Analysis orders 40 ≤ f < 70 Hz f × 512 Hz 2 periods of f 50 70 ≤ f < 130 Hz f × 256 Hz 4 periods of f 50130 ≤ f < 250 Hz f × 128 Hz 8 periods of f 50250 ≤ f ≤ 440 Hz f × 64 Hz 16 periods of f 30FFT data length:1024FFT processed word length: 32 bits Window function:Rectangular Display updating interval:0.25/0.5/1/2/5 seconds Updating is slower during online output according to the communication speed and the number of parameters transferred.Accuracy:Add ±0.2% of range to normal measurement accuracy.Note:For nth-order component input, add ((nth order reading)× (10/(m+1))%) to the n+mth order and n-mth order.D/A Output (optional)Output voltage:±5 V FS (maximum approximately ±7.5 V) for each rated value Number of outputs:12 parameters with /DA12 option; 4 parameters with /DA4 option Output data selection :Can be set separately for each channel.Accuracy:±(equipment accuracy + 0.2% of FS)D/A converter:12-bit resolution Response time:Maximum 2 times the display updating interval Updating interval:Same as the equipment's display updating interval Temperature coefficient:±0.05%˚C of FS Output typeD/A output7.5V 5.0V2.5V0.5V00.5Hz 100Hz10Hz1Hz1kHz10kHz Display value100kHz FrequencyIntegrationD/A output7.0V5.0Vt0Integration timeFor input equal to 140% of ratingFor rated inputt0: Rated setting timeOther parameters0V-100%-140%-5.0V -7.0V -7.5V5.0V7.0V 7.5V 140%100%D/A outputDisplay valueDisplay 140% 100% 0%-100%-140%Output 7.0V 5.0V 0V -5.0V -7.0VNote: For PF and deg, there is no output between ±5 and ±7 V. When an error occurs,approximately 7.5 V are output.7External Input (Optional)Select either /EX1 or /EX2 for the voltage output-type current sensor./EX1: 2.5/5/10 V /EX2:50/100/200 mV Specifications:See the section on input specifications.Comparator Output (Optional)Output method:Normal-open and normal-close relay contact output (pair)Number of output parameters and settings:Four parameters; can be set separately on each output channel.Contact capacitance:24 V/0.5 AD/A output (4-channel):See section on D/A output (optional)External Control Signal (with D/A or /CMP Option Only)External control signals :EXT -HOLD, EXT -TRIG, EXT -START, EXT -STOP , EXT -RESET ,INTEG-BUSYInput:TTL level negative pulseGeneral SpecificationsWarmup time:Approximately 30 minutesOperating temperature and humidity ranges: 5-40˚C, 20-80% RH (no condensation)Storage temperature :-25-60˚C (no condensation)Maximum operating elevation: 2000 metersInsulating resistance :50 M Ω or higher at 500 V DC across all of the following areas:Voltage input terminals (ganged) and case Current input terminals (ganged) and caseVoltage input terminals (ganged) and current input terminals (ganged)Voltage input terminals (ganged) of each element Current input terminals (ganged) of each element Voltage input terminals (ganged) and power plug Current input terminals (ganged) and power plug Case and power plugInsulating withstand voltage:3700 V for one minute at 50/60 Hz across all of the following areas:Voltage input terminals (ganged) and case Current input terminals (ganged) and caseVoltage input terminals (ganged) and current input terminals (ganged)Voltage input terminals (ganged) of each element Current input terminals (ganged) of each element Voltage input terminals (ganged) and power plug Current input terminals (ganged) and power plug1500 V for one minute at 50/60 Hz across case and power plug Power supply:Free power supply (100-240 V), 50/60 Hz frequency Consumed power:Max 35 VA for WT210, max 55 VA for WT230External dimensions for WT210:Approximately 213 × 88 × 379 mm (WHD) (excluding projections)External dimensions for WT230:Approximately 213 × 132 × 379 mm (WHD) (excluding projections)Weight:Approximately 3 kg for WT210, approximately 5 kg for WT230Safety standard Complying standard EN61010-1Overvoltage category (Installation category) II Pollution degree 2Emission Complying standard EN61326 Class AEN61000-3-2EN61000-3-3AS/NZS 2064 Class AImmunity Complying standard EN61326 Annex A■ Exterior ViewUnit : mmWT210WT23021332728.51322113233425073233562131798819359760401Power cord Options-D-F -R -Q/C1/C2 /EX1 /EX2/HRM/DA4/CMPWT210 single-input element modelUL/CSA standard VDE standard AS standard BS standardGP-IB communication interfaceSerial (RS-232-C) communication interface External input 2.5/5/10 V External input 50/100/200 mV Harmonic measurement function 4-channel DA outputComparator and D/A, 4 channels eachModel number DescriptionSuffix codeSelect oneSelect one Select oneNote: The WT210 communication interface cannot be changed or modified after delivery.760502760503Interface Power cord Options-C1-C2-D-F -R -Q/EX1/EX2/HRM /DA12/CMPWT230 2-input element model WT230 3-input element model GP-IB communication interfaceSerial (RS-232-C) communication interface UL/CSA standard VDE standard AS standard BS standardExternal input 2.5/5/10 V External input 50/100/200 mV Harmonic measurement function 12-channel DA outputComparator and D/A, 4 channels eachModel number DescriptionSuffix code Select oneSelect oneSelect one Model or part number751533-E2751533-J2751534-E2751534-J2751533-E3751533-J3751534-E3751534-J3SpecificationFor WT210 EIA standalone installation For WT210 JIS standalone installation For WT210 EIA connected installation For WT210 JIS connected installation For WT230 EIA standalone installation For WT230 JIS standalone installation For WT230 EIA connected installation For WT230 JIS connected installationOrder quantity11111111Product Rack mounting kit Rack mounting kit Rack mounting kit Rack mounting kit Rack mounting kit Rack mounting kit Rack mounting kit Rack mounting kitAsk Yokogawa for information on rack mounts in which WT210 and WT230 are combined.B9317WD B9284LK1.5 mm hex wrench External sensor cableFor fastening cable on 758931For external input; 50 cmModel numberDescription■ Model Numbers and Suffix Codes■ Rack mounts■ Accessories (sold separately)■ Standard AccessoriesPower cord, Power fuse, Current input protective cover, Rubber feet for the hind feet,24-pin connector (provided only on options/DA4, /DA12, and /CMP), User’s manualSingle-phase 2-wire Single-phase 3-wireThree-phase 3-wire (2 voltages, 2 currents)Three-phase 3-wire (3 voltages, 3 currents)Three-phase 4-wire760401✓––––760502✓✓✓––760503✓✓✓✓✓WiringModel■ Wiring Types and Model Numbers366921Conversion adapter 1758921Fork Terminal Adapter758917Measurement leadsLabVIEW* Driver Software (Free)interface. See Bulletin 04L00L00-00E for details.。
日本横河WT210230说明书
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WT210/230 简要中文操作手册
10、平均功率测试
操作： （1）按 SETUP 键，进入设置菜单 （2）通过上下翻页键∧或∨，选择如上左图示的 MATH 功能，按 ENTER 键确认，进入到下图 （3）通过上下选择键∧或∨，选择 ，按 ENTER 键确认
（4）按 START 键，开始积分。 （注：停止测试时按 STOP，并注意按 RESET 进行复位） （5）如下图示，按显示 C 右边的 FUNCTION 键，按到显示 C 第一个字母为 平均功率。
11
，此时显示 C 上显示值为
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1
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WT210/230 简要中文操作手册
快速上手
显示 A 显示 B
显示 C
WT210 功能：电压量程设置键 当电压或电流量程选择不适当的时候， LED 会点亮。 调整到合适的量程 LED 关。 数据更新时，LED 随 更新时间闪烁。
WT210/230 简要中文操作手册
5、仪器初始化
操作： （1）按 SETUP 键， （2）通过∧或∨键，选择 （3）按 ENTER 键确认。 （4） 再通过∧或∨键， YES。 （5）再按 ENTER 键确认即 可。
6、设置显示位数 操作： （1）按 SETUP 键， （2）通过∧或∨键，选择 （3）按 ENTER 键确认。 （4）再通过∧或∨键，选择 Hi 或 Lo。 （5）再按 ENTER 键确认即 可。 注：Hi 时显示位数为 5 位； Lo 时显示位数为 4 位。
日本横河WT210概要
日本横河WT210概要
WT210和WT230是一种体积轻巧、半机架大小的功率计。
它们改进了基本精度和带宽，广泛应用从低频设备到变频器的功率测量。
另外，WT210拥有和WT200一样的5MA电流输入量程，可以测量节能设计和间歇工作设备中的微小电流。
日本横河WT210功率计特点
﹒确保精度的最大输入：26A
﹒测量极小电流的5MA量程(仅WT210)
﹒线路滤波功能
﹒高速数据更新(10次/秒)
﹒谐波测量功能(选件)
﹒用户校准功能
﹒使用外部传感器输入可测量大电流(选件)
日本横河WT210功率计基本规格
﹒电压量程：(峰值因数3)电压：15/30/60/150/300/600V
﹒电流量程：(峰值因数3)直接输入：5M/10M/20M/50M/100M/200MA
0.5/1/2/5/10/20A(WT210)
0.5/1/2//5/10/20A(WT230)
外部传感器输入(选件)：2.5/5/10V或50/100/200MV
﹒频率范围：DC、0.5HZ~100KHZ
﹒基本精度(45HZ≤F≤66HZ)电压/电流/功率±(读数的0.1%+量程的0.1%)
﹒功率因数的影响(COSф=0)加量程的±0.2%
﹒外部尺寸：约213(W)×88(H)×379(D)MM(WT210)
约213I(W)×132(H)×379(D)MM(WT230)
﹒重量：约3.0KG(WT210)约5.0KG(WT230)。
数字功率计_WT210-230 _20130129
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ሀ6mΩ+10mΩ)max**2+ሀ0.1µH)0.5-20A*4ǗWT210Dž
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ރኵۉუ2.8kVईᆶၳኵ2.0kV(ൽডၭኵ)
WT210和WT230的功能和特点
● 频率范围广，适用于各种场合
低频设备
0.5Hz起的低频测量
0.5Hz起的低频测量，可用于评价循环换流器及电 机的启动。
商用电源
0.1%
功率精度优于以往的WT系列产品。
变频器
100kHz的频率范围
可用来对变频器等高频设备进行精确的测量。
● 确保精度：1％~130％
1%
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横河测试测量专属网站： /cn(中文) (英文)
WT210数字功率计操作手册.
选择SETUP键,按向上或向下,选到AVG,点击ENTER进入选项进行选择
(ON/OFF/TYPE),选择ON则显示屏底下的AVG指示灯会亮绿灯.
15
EP：Exponential Averaging 平均指数
Lin：Moving Averaging 移动平均
16
17
18
19
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WT-210 数字功率计技术参数
•
AN:说明设置的电流量程或电压量程太小。需要按VOLTAGE或CURRENT进行
重新设置量程,一般EE或Power工程师借过去debug或分析回路功率时会选择比精确
的量程,故会将量程设得很小。
• 3. 电流或电压的值很小，只有0.003W左右（理论上应是0.1W左右）?
•
AN:说明AVG平均电压功能被开启，所测的值是平均值。解决的方法是进
WT210技术规格
额定值（范围）
电压：15/30/60/150/300/600 V
电流:
直接输入：5/10/20/50/100/200 mA(仅WT210) , 0.5/1/2/5/10/20
A(WT210/WT230) 外接输入(选用)：2.5/5/10V 或 50/100/200 mV 频率范围
1.按下CURRENT,就会出现电流量程选择菜单,显示电压的显示屏上的值就 会一直跳动. 2.按向上或向下键则,可改变电压量程,当一直按向上会选到AUTO,此时,电 压选项上面的AUTO指示灯会亮起.说明此时选择是自动调整. 3.按下ENTER键,可以确定下电流量程.
4
当峰值因数CF=3时,电流量程:0.5~20A,当峰值因数CF=6时,电流量 程:0.25~10A
7
选择C显示屏功能为-功率W
功率计操作说明
功率计操作说明功率计操作说明1：引言本文档旨在提供详细的功率计操作说明，为用户正确使用功率计提供指导。
请阅读本文档并按照指导进行操作。
2：功率计介绍2.1 功率计的定义功率计是用于测量电力系统中电功率的仪器，能够精确测量电流、电压和功率等参数，以帮助用户评估电力系统的性能和负载情况。
2.2 功率计的组成功率计包括以下主要组成部分：- 显示屏：用于显示测量结果和参数；- 操作按钮：用于操作功率计的功能和设置；- 接口：用于连接电源、测量点等外设；- 外壳：用于保护功率计内部组件。
3：功率计的操作3.1 电源接入将功率计与电源连接，确保电源接口正确插入功率计的电源接口。
3.2 参数设置在功率计的显示屏上，使用操作按钮进入参数设置界面。
根据实际需要，设置电流、电压、功率的测量范围和单位等参数。
3.3 测量操作将待测电源或负载与功率计的接口相连，确保连接稳定可靠。
打开待测电源或负载，功率计会自动测量并显示相关参数。
3.4 数据记录与保存如果需要记录测量结果，可以使用功率计提供的数据记录功能。
按照操作说明，将测量结果保存到内部存储器或外部设备上。
3.5 故障排除在使用功率计过程中，如遇到异常情况或错误信息，请参考故障排除章节的指导，分析问题并采取相应措施。
4：附件本文档涉及的附件包括以下内容：- 功率计安装图纸- 功率计操作视频教程5：法律名词及注释- 电力系统：指由电源、输电线路、变电设备等组成的电力供应和分配系统。
- 电功率：指电流和电压的乘积，表示单位时间内的能量转移速度。
6：结束语本文档提供了详细的功率计操作说明，希望能够帮助用户正确使用功率计并准确测量相关参数。
如有任何疑问或需要进一步帮助，请联系我们的技术支持团队。
WT-210数字功率计操作手册ppt课件
3. 电流或电压的值很小，只有0.003W左右（理论上应是0.1W左右）? AN:说明AVG平均电压功能被开启，所测的值是平均值。解决的方法是进SETUP的
AVG项，选择off。功率计面板上的AVG项绿灯就会熄灭，此时就是我们需要测试的
电流:
直接输入：5/10/20/50/100/200 mA(仅WT210) , 0.5/1/2/5/10/20
A(WT210/WT230) 外接输入(选用)：2.5/5/10V 或 50/100/200 mV 频率范围
DC，0.5Hz～100kHz 基本精度(45Hz＆le;频率f＆le;66Hz)
(ON/OFF/TYPE),选择ON则显示屏底下的AVG指示灯会亮绿灯.
16
EP：Exponential Averaging 平均指数
Lin：Moving Averaging 移动平均
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18
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WT-210 数字功率计技术参数
WT210技术规格
额定值（范围）
电压：15/30/60/150/300/600 V
电压/电流：＆plusmn;（读数的0.1％＋量程的0.1％） 功率：＆plusmn;（读数的0.1％＋量程0.1％）
一般规格 外型尺寸：
WT210: 约213(宽)＆times;88(高)＆times;379(深)mm (突出份除外)
重量：
WT210: 约3公斤
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WT-210使用过程常遇到的问题解答
关于求平均值功能
求平均值功能对测量的值执行平均计算或平均变化计算.当电源或负载引起 测试数值在较大的范围内变动,无法平稳.或者输入信号是低频信号时, 常应用 到求平均值功能,使得所测得值容易读取.测试的项目包括:电压、电流和功率。
日本横河WT210数字功率计
日本横河WT210数字功率计日本横河WT210数字功率计是一种测试电路板或设备输出、输入功率的仪器。
它由日本横河电气公司发明，已成为业界知名的功率计产品。
本文将对该产品进行详细介绍。
仪器特点日本横河WT210数字功率计具有以下几个特点：高精度从精确度来看，日本横河WT210数字功率计达到了0.1%级别。
这意味着在大多数应用场合下，WT210可以准确的测试电路板或设备的输入、输出功率，对于各类工业生产和研发实验室等场合都特别适用。
宽频带WT210数字功率计拥有宽频带功能，能够支持传统60Hz市电的测试，同时还可以支持高速开关电源等各种带有中高频噪声的功率测量。
可扩展性除了基本套装外，WT210还提供了多种软件插件，比如电机测试插件、太阳能测试插件等多种插件，便于用户根据不同需求进行扩展。
易用性WT210数字功率计采用人性化设计，可以支持多种语言，并且使用简便。
仪器自带许多测试模式、测试报告和异常警报等功能，可以大大减轻用户的负担。
技术参数下面对日本横河WT210数字功率计的主要技术参数进行介绍：•电压范围：30mV 至 1000V（自动）•电流范围：30mA 至 20A（自动）•精度：0.1% 全范围（整流器和非整流器）•功率测试范围：8kW（与线圈长度无关）•频率范围：45至66Hz 或 320至 1000Hz•不确定度：±0.15%（45Hz至5kHz）,±0.4%（5kHz至100kHz）应用场景WT210数字功率计可广泛应用于各种场合。
比如在电机制造业、变频器制造业、航空航天和军事制造业、研究与开发等领域都有着广泛的应用。
经济性和价值虽然日本横河WT210数字功率计的价格相对较高，但相比其他同类产品，它的性能稳定性、精度和可靠性都表现得非常突出。
它也提供了丰富的扩展插件，便于用户根据自身需求进行扩展。
因此，WT210数字功率计的成本产生不高，通常可以帮助用户在工业生产和研究开发中提高生产效率和产品性能，具有很高的经济价值和使用价值。
昱光WT210 WT230能源节省工具数字采样功率计说明书
ENERGY SAVING TOOLS Digital Sampling Power Meters with Superior Cost PerformanceWT230WT210130% input1% inputFunctions and Features of the WT210 and WT230●A Wide Frequency Range Lets You Work on a Variety of Different Applications2: Conditions apply to accuracy from 110% to 130%.●Powerful Tools for Energy Measurement●Wide range of 5 mA to 20 AThe built-in 5 mA range lets you measure currents as low as 25 µA. This makes it possible to measure very low currents on such things as intermittent control equipment. The wide current range (5 mA to 20 A) means a single power meter can be used for applications such as Energy Star® measuremnts, to measure everything from standby-power to rated-power.GP-IB/serial interface (RS-232-C)ExternalD/A outputComparator outputRecorderClamp probe The WT230’s advanced specifications and its wide range of functions let you handle all your measurement applications from low-frequency equipment to high frequency inverters using a single power meter.One unit also handles standby low-power measurements and rated-power measurements (functions available with the WT210 only).960 01751552N E W wareSoft Fr ee WTViewer for the WT210/WT230Easily Acquire and Manage Power Measurement Data from Your PCSee 8 pages orBulletin 7604- 32E for details.5ParameterVoltage15/30/60/150/300/600 VInput resistance: Approximately 2 M ΩInput capacitance: Approximately 13 pF Peak voltage of 2.8 kV or rms value of 2.0 kV (whichever is less)Peak voltage of 2.0 kV or rms value of 1.5 kV (whichever is less)Peak voltage of 1.5 kV or rms value of 1.0 kV (whichever is less)600 Vrms (with output connector protective cover), CA T II / 400 Vrms (without output connector protective cover) CA T II50/60 Hz, -80 dB or higher (±0.01% of range or less) with voltage input terminals shorted and current input terminals open and external input terminals shorted Reference value (up to 100 kHz): ±((Maximum range rating)/(Range rating) × 0.001 × f% of rng) or less (voltage range and 0.5-20 A current range and external input range 3)±((Maximum range rating)/(Range rating) × 0.0002 × f% of rng) or less (WT210; 5-200 mA range)Note: 0.01% or higher. f is in kHz. 3 Decuple the above-formula about the external input range.Resistance voltage dividerCurrentShunt input system Direct input:5/10/20/50/100/200 mA (WT210 only)1; 0.5/1/2/5/10/20 A (WT210/WT230)External input (optional): 2.5/5/10 V or 50/100/200 mVDirect input:Approximately 500 m Ω + approximately 0.1 µH (5-200 mA; WT210)Approximately 6 m Ω + 10 m Ω (max)2 + approximately 0.1 µH (0.5-20 A; WT210)Approximately 6 m Ω approximately 0.1 µH (0.5-20 A; WT230)External input: Approximately 100 k Ω (2.5/5/10 V), approximately 20 k Ω (50/100/200 mV)0.5-20 A (WT210/WT230): Peak current of 450 A or rms value of 300 A (whichever is less)5-200 mA (WT210): Peak current of 150 A or rms value of 100 A (whichever is less)External input: Peak value of 10 times range or less0.5-20 A (WT210/WT230): Peak current of 150 A or rms value of 40 A (whichever is less)5-200 mA (WT210): Peak current of 30 A or rms value of 20 A (whichever is less)External input: Peak value of 10 times range or less0.5-20 A (WT210/WT230): Peak current of 100 A or rms value of 30 A (whichever is less)5-200 mA (WT210): Peak current of 30 A or rms value of 20 A (whichever is less)External input: Peak value of 5 times range or lessInput typeRated values (ranges)Measuring instrument loss (input resistance)Maximum instantaneous allowed input (1 cycle, 20 ms duration)Maximum instantaneous allowed input (1 second duration)Maximum continuous allowed inputMaximum continuous common mode voltage (with 50/60 Hz input)CMRR600 Vrms across input terminal and caseFloating inputInput SpecificationsPlug-in terminal (safety terminal)Direct input: Large binding postExternal input: BNC connector (insulation type)Input terminal type A/D converterSimultaneous conversion of voltage and current inputs Resolution: 16 bitsMaximum conversion speed: Approximately 20 µs (approximately 51 kHz)Range switchingRanges can be set manually, automatically, or through online controls. Auto-range functionRange raising: When a measurement exceeds 130% of the rating, or when the peak value exceeds approximately 300% of the ratingRange lowering: When a measurement falls to 30% or less of the rating, and the peak value falls to approximately 300% or less of the rating for the low range Measurement mode switchingAny of the following, selected manually or through online controls: RMS (true rms value measurements for both voltage and current), V MEAN (calibration of average-value-rectified rms value for voltage; true rms value measurement for current), DC (simple averages for both voltage and current)Note: Current direct input and external sensor input cannot both be used at the same time. When you operate current input terminals and external input terminals, please be careful.Since these terminals are electrically connected inside the instrument.1, Connect wires that match the size of the measurement current.2, Factory settingParameterVoltage/currentDC:0.5 Hz ≤ f < 45 Hz:45 Hz ≤ f ≤ 66 Hz:66 Hz < f ≤ 1 kHz:1 kHz < f ≤ 10 kHz:10 kHz < f ≤ 100 kHz:* Add ±10 µA to the current DC accuracy.1-130% of voltage/current range rating (for accuracy at 110-130%, add the reading tolerance × 0.5 to the above accuracy) Add the accuracy's reading tolerance (three months after calibration) × 0.5 to the accuracy three months after calibration.A low-pass filter can be inserted in the input circuit for measurement. The cutoff frequency (fc) is 500 Hz.Voltage and current: Add 0.2% of rdg at 45-66 Hz. Add 0.5% of rdg below 45 Hz.Power: Add 0.3% of rdg at 45-66 Hz. Add 1% of rdg below 45 Hz.±0.03% of range/°C at 5-18°C and 28-40°C.0.1/0.25/0.5/1/2/5 secondsData updating rate0.1 second 0.25 second 0.5 second 1 second 2 seconds 5 seconds Measurement lower limit frequency25 Hz10 Hz5 Hz2.5 Hz1.5 Hz0.5 Hz±(0.2% or rdg + 0.2% of rng)*±(0.1% of rdg + 0.2% of rng)±(0.1% of rdg + 0.1% of rng)±(0.1% of rdg + 0.2% of rng)±((0.07 × f)% of rdg + 0.3% of rng)±((0.5% of rdg + 0.5% of rng) ±((0.04 × (f-10))% of rdg)Active powerDC:0.5 Hz ≤ f < 45 Hz:45 Hz ≤ f ≤ 66 Hz:66 Hz < f ≤ 1 kHz:1 kHz < f ≤ 10 kHz:10 kHz < f ≤ 100 kHz:* Add ±10 µA × voltage reading to the power DC accuracy.For cos ϕ = 045 Hz ≤ f ≤ 66 Hz: ±0.2% of VA (VA is a reading value of apparent power)Reference data (up to 100 kHz): ±((0.2 + 0.2 × f)% of VA)Indicated value tolerance for 0 < cos ϕ < 1Add (tan ϕ × (effect when cos ϕ = 0)% of power reading to the above power accuracy.Note: ϕ is the phase angle between voltage and current.±(0.3% or rdg + 0.2% of rng)*±(0.3% of rdg + 0.2% of rng)±(0.1% of rdg + 0.1% of rng)±(0.2% of rdg + 0.2% of rng)±(0.1% of rdg + 0.3% of rng) ±((0.067 × (f-1))% of rdg)±(0.5% of rdg + 0.5% of rng) ±((0.09 × (f-10))% of rdg)SystemFrequency range Crest factorAccuracy (three months after calibration) (Conditions)T emperature: 23±5°C Humidity: 30-75% RHInput waveform: Sinewave Power factor: cos ϕ = 1 In-phase voltage: 0 V DCFrequency filter: ON at 200 Hz or less Scaling: OFFDisplay digits: 5 digits After CAL is executedNote: In the accuracy calculation formula, f is in kHz.Power factor effectNote: In the accuracy calculation formula, f is in kHz. Effective input rangeAccuracy (12 months after calibration)Line filter functionAccuracy with line filter on T emperature coefficient Display updating intervals Measurement lower limit frequencyDigital sampling; sum of averages methodDC, and 0.5 Hz to 100 kHz3 (with rated input) 300 (with minimum effective input)Measurement Functionsrng: Range rdg: ReadingLead/lag is detected correctly when phase difference equal to or greater than ±5° with both voltage and current inputs as sine waves equal to or greater than 50% of rated range-value, and the frequency is between 20 Hz to 2 kHz.Lead/lag detectingThe latest product information is available at our web site /tm/. Review the specifications to determine which model is right for you.Frequency MeasurementsMeasurement inputs :V1, V2, V3, A1, A2, or A3 (select one)Measurement system :Reciprocal system Measurement frequency ranges100 ms:25Hz ≤ f ≤100 kHz 250 ms:10Hz ≤ f ≤100 kHz 500 ms: 5Hz ≤ f ≤100 kHz 1 sec: 2.5Hz ≤ f ≤100 kHz 2.5 sec:1.5Hz ≤ f ≤50 kHz 5 sec:0.5Hz ≤ f ≤20 kHzAccuracy:±(0.06% of rdg)Conditions:Input equal to at least 30% of voltage/current rated range.Frequency filter function ON at 200 Hz and below.Frequency filter cutoff frequency: 500 HzCommunication Functions (Optional for the WT210)GP-IB or serial interface (RS-232-C) (select one)GP-IBElectrical and mechanical specifications:Conform to IEEE Standard 488-1978 (JIS C1901-1987).Functional specifications:SH1, AH1, T5, L4, SR1, RL1, PR0, DC1, DT1, C0Protocol:Conforms to IEEE Standard 488.2-1992.Code used:ISO (ASCII) code Addresses:0-30 talker/listener addresses can be set.Serial interface (RS-232-C)Transmission mode :Asynchronous Baud rates:1200, 2400, 4800, 9600 bps62333Single-phase 3-wire Three-phase 3-wire (2 voltages, 2 currents)Three-phase 3-wire (3 voltages, 3 currents)Three-phase 4-wireVoltage ∑V (V1 + V3)/2(A1 + A3)/2W1 + W3(V1 + V2 + V3)/3(A1 + A2 + A3)/3W1 + W2 + W3var1 + var2 + var3VA1 + VA2 + VA3Current ∑A Active power ∑WPower factor PF , ∑PF Phaseangle deg, ∑degdegi =cos -1 (Wi/VAi)Reactive power var, ∑var Apparent power VA, ∑VA vari = (VA 2 - W 2)VAi = Vi × Ai Pfi = Wi/VAi ∑W/∑VA cos -1 (∑W/∑VA)VA1 + VA3var1 + var3(VA1 + VA3)(VA1 + VA2 + VA3)Notes1.This equipment's apparent power (VA), reactive power (var), power factor (PF),and phase angle (deg) are calculated from voltage, current, and active power.(Therefore, if the input contains a distorted wave, the values may not match those of other measuring instruments based on different measurement principles.)2.If either voltage or current falls to 0.5% of the range rating or less, then the apparent power (VA) and reactive power (var) are displayed as zero, and errors are displayed for power factor (PF) and phase angle (deg).3.The sign of the var of each phase is displayed with +(positive). In the ∑var calculation, the var value for each phase is calculated with a negative sign if the current input leads the voltage input, and with a positive sign if the current input lags the voltage input. Then the value of ∑ var may be displayed with –(negative).4.Apparent power (VA) and reactive power (var) cannot be calculated and displayed at the harmonics measurement mode.Display FunctionsDisplay unit:7-segment LED (light-emitting diode)Display areas:3V , A, W, VA, var (for each element), integration elapsed timeV , A, W, PF , deg (for each element, percentage (content percentage, THD)V , A, W, V/AHz, Vpk, Apk, ±Wh, ±Ah (for each element), MA THDisplay areaA B CDisplayed informationMeasurement parameters Maximum display Display resolutionV , A, W, VA, var PF deg ±Wh, ±AhVHz, AHz 99999±1.0000±180.0999999999990.001%0.01%0.1*0.0001%Input frequency/20,000Display digits: 4 or 5 digits (selectable by user).Factory default setting is 5 digits.Units:m, k, M, V , A, W, VA, var, Hz, h ±, deg, %Display updating intervals: 0.1/0.25/0.5/1/2/5 seconds Response time:Maximum 2 times the display updating interval (time requiredfor display value to enter accuracy range of final value with line filter off, when range rating abruptly changes from 0% to 100%,and from 100% to 0%)Maximum display:140% of voltage/current range rating Minimum display:About Vrms, Arms, and Ah, 0.5% of range rating.Less than 0.5% is zero suppression.Display scaling functionEffective digits:Selected automatically according to the digits in the voltage andcurrent ranges.Setting range:0.001 to 9999Averaging functionThere are two averaging methods (selectable by user):Exponential average Moving averageIn cases where response can be set and exponential average is used, the attenuation constant can be selected. In cases where a moving average is used, the number of averages N can be selected from 8, 16, 32, and 64.Auto-range monitorAn LED turns on when the input value is outside the range set for the auto-range.MAX hold functionThis function can be used to hold V, A, W, VA, var, Vpk, and Apk at maximum values.MA TH functions System:When a function key on DISPLA Y C is pressed to select theMATH functions, it is possible to perform efficiency (WT230 only)and input crest factor measurements, as well as arithmetic calculations on DISPLAY A and B measurements. In addition, it is possible to display average active power for time-converted integrated power.Integration FunctionsDisplay resolution:The minimum display resolution changes together with the integrated value.Maximum display:-99999 to 999999 MWh/MAhModes:Standard integration mode (timer mode), continuous integration mode (repeat mode), manual integration modeTimer:Automatic integration start/stop based on timer setting.Setting range: 000 h:00 min:00 sec to 10000 h:00 min:00 sec (If the time is set to zero, manual mode is automatically set.)Count over flow:When the integrated value exceeds 999999 MWh/MAh or falls to at least -99999 MWh/MAh, the elapsed time is saved and the operation is stopped.Accuracy:±(display accuracy + 0.1% of rdg)Timer accuracy:±0.02%Remote control:Starting, stopping, and resetting can be controlled through external contact signals. This function is only available when option /DA4, /DA12 or /CMP is installed.Calculation FunctionsInternal Memory FunctionsMeasurement dataStored data WT210 (760401)WT230 (760502)WT230 (760503)Normal measurement Data for 600 samples Data for 300 samples Data for 200 samplesHarmonic measurement Data for 30 samples Data for 30 samples Data for 30 samplesStore interval:Display updating interval and 1 second to 99 hours, 59 minutes,and 59 secondsRecall interval:Display updating interval and 1 second to 99 hours, 59 minutes,and 59 seconds(Both can be set in 1-second increments.)Panel setting information :Four different patterns of panel setting information can be written/read.Harmonic Measurement Function (optional)System:PLL synchronization Measurement frequency range:Fundamental frequency in range of 40-440 HzMaximum display:99999Display digits: 4 or 5 digits (selectable by user).Factory default setting is 5 digits.Measurement parameters: V , A, W, deg (WT210), V1, V2, V3, A1, A2, A3, W1, W2,W3, deg1, deg2, deg3 (WT230), individual harmonic levels, rms voltage, rms current, active power, fundamental frequency PF ,harmonic distortion rate, individual harmonic contentMeasurement element: These parameters can only be measured simultaneously fora single specified input element.Sampling speed, window width, and analysis ordersThe values for these parameters vary according to the input fundamental frequency as shown below.Fundamental frequency Sampling speed Window width Analysis orders 40 ≤ f < 70 Hz f × 512 Hz 2 periods of f 50 70 ≤ f < 130 Hz f × 256 Hz 4 periods of f 50130 ≤ f < 250 Hz f × 128 Hz 8 periods of f 50250 ≤ f ≤ 440 Hz f × 64 Hz 16 periods of f 30FFT data length:1024FFT processed word length: 32 bits Window function:Rectangular Display updating interval:0.25/0.5/1/2/5 seconds Updating is slower during online output according to the communication speed and the number of parameters transferred.Accuracy:Add ±0.2% of range to normal measurement accuracy.Note:For nth-order component input, add ((nth order reading)× (10/(m+1))%) to the n+mth order and n-mth order.D/A Output (optional)Output voltage:±5 V FS (maximum approximately ±7.5 V) for each rated value Number of outputs:12 parameters with /DA12 option; 4 parameters with /DA4 option Output data selection :Can be set separately for each channel.Accuracy:±(equipment accuracy + 0.2% of FS)D/A converter:12-bit resolution Response time:Maximum 2 times the display updating interval Updating interval:Same as the equipment's display updating interval Temperature coefficient:±0.05%˚C of FS Output typeD/A output7.5V 5.0V2.5V0.5V00.5Hz 100Hz10Hz1Hz1kHz10kHz Display value100kHz FrequencyIntegrationD/A output7.0V5.0Vt0Integration timeFor input equal to 140% of ratingFor rated inputt0: Rated setting timeOther parameters0V-100%-140%-5.0V -7.0V -7.5V5.0V7.0V 7.5V 140%100%D/A outputDisplay valueDisplay 140% 100% 0%-100%-140%Output 7.0V 5.0V 0V -5.0V -7.0VNote: For PF and deg, there is no output between ±5 and ±7 V. When an error occurs,approximately 7.5 V are output.7External Input (Optional)Select either /EX1 or /EX2 for the voltage output-type current sensor./EX1: 2.5/5/10 V /EX2:50/100/200 mV Specifications:See the section on input specifications.Comparator Output (Optional)Output method:Normal-open and normal-close relay contact output (pair)Number of output parameters and settings:Four parameters; can be set separately on each output channel.Contact capacitance:24 V/0.5 AD/A output (4-channel):See section on D/A output (optional)External Control Signal (with D/A or /CMP Option Only)External control signals :EXT -HOLD, EXT -TRIG, EXT -START, EXT -STOP , EXT -RESET ,INTEG-BUSYInput:TTL level negative pulseGeneral SpecificationsWarmup time:Approximately 30 minutesOperating temperature and humidity ranges: 5-40˚C, 20-80% RH (no condensation)Storage temperature :-25-60˚C (no condensation)Maximum operating elevation: 2000 metersInsulating resistance :50 M Ω or higher at 500 V DC across all of the following areas:Voltage input terminals (ganged) and case Current input terminals (ganged) and caseVoltage input terminals (ganged) and current input terminals (ganged)Voltage input terminals (ganged) of each element Current input terminals (ganged) of each element Voltage input terminals (ganged) and power plug Current input terminals (ganged) and power plug Case and power plugInsulating withstand voltage:3700 V for one minute at 50/60 Hz across all of the following areas:Voltage input terminals (ganged) and case Current input terminals (ganged) and caseVoltage input terminals (ganged) and current input terminals (ganged)Voltage input terminals (ganged) of each element Current input terminals (ganged) of each element Voltage input terminals (ganged) and power plug Current input terminals (ganged) and power plug1500 V for one minute at 50/60 Hz across case and power plug Power supply:Free power supply (100-240 V), 50/60 Hz frequency Consumed power:Max 35 VA for WT210, max 55 VA for WT230External dimensions for WT210:Approximately 213 × 88 × 379 mm (WHD) (excluding projections)External dimensions for WT230:Approximately 213 × 132 × 379 mm (WHD) (excluding projections)Weight:Approximately 3 kg for WT210, approximately 5 kg for WT230Safety standard Complying standard EN61010-1Overvoltage category (Installation category) II Pollution degree 2Emission Complying standard EN61326 Class AEN61000-3-2EN61000-3-3AS/NZS 2064 Class AImmunity Complying standard EN61326 Annex A■Exterior ViewUnit : mmWT210WT23021332728.51322113233425073233562131798819359760401Power cord Options-D-F -R -Q/C1/C2/EX1/EX2/HRM /DA4/CMPWT210 single-input element modelUL/CSA standard VDE standard AS standard BS standardGP-IB communication interfaceSerial (RS-232-C) communication interface External input 2.5/5/10 V External input 50/100/200 mV Harmonic measurement function 4-channel DA outputComparator and D/A, 4 channels eachModel number DescriptionSuffix codeSelect oneSelect one Select one Note: The WT210 communication interface cannot be changed or modified after delivery.760502760503Interface Power cord Options-C1-C2-D-F -R -Q/EX1/EX2/HRM /DA12/CMPWT230 2-input element model WT230 3-input element model GP-IB communication interfaceSerial (RS-232-C) communication interface UL/CSA standard VDE standard AS standard BS standardExternal input 2.5/5/10 V External input 50/100/200 mV Harmonic measurement function 12-channel DA outputComparator and D/A, 4 channels eachModel number DescriptionSuffix code Select oneSelect oneSelect one Model or part number751533-E2751533-J2751534-E2751534-J2751533-E3751533-J3751534-E3751534-J3SpecificationFor WT210 EIA standalone installation For WT210 JIS standalone installation For WT210 EIA connected installation For WT210 JIS connected installation For WT230 EIA standalone installation For WT230 JIS standalone installation For WT230 EIA connected installation For WT230 JIS connected installationOrder quantity11111111Product Rack mounting kit Rack mounting kit Rack mounting kit Rack mounting kit Rack mounting kit Rack mounting kit Rack mounting kit Rack mounting kitAsk Yokogawa for information on rack mounts in which WT210 and WT230 are combined.B9317WD B9284LK1.5 mm hex wrench External sensor cableFor fastening cable on 758931For external input; 50 cmModel numberDescription■Model Numbers and Suffix Codes■Rack mounts■Accessories (sold separately)■Standard AccessoriesPower cord, Power fuse, Current input protective cover, Rubber feet for the hind feet,24-pin connector (provided only on options/DA4, /DA12, and /CMP), User’s manualSingle-phase 2-wire Single-phase 3-wireThree-phase 3-wire (2 voltages, 2 currents)Three-phase 3-wire (3 voltages, 3 currents)Three-phase 4-wire760401✓––––760502✓✓✓––760503✓✓✓✓✓WiringModel■Wiring Types and Model Numbers366921Conversion adapter 1758921Fork Terminal Adapter758917Measurement leadsLabVIEW* Driver Software (Free)interface. See Bulletin 04L00L00-00E for details.。
功率计操作说明
功率计操作说明功率计是一种用于测量电路或电器消耗的功率的仪器。
它可以帮助用户准确地了解电路或电器在使用过程中的功耗情况，为节能提供重要依据。
下面将为您详细介绍功率计的操作步骤和注意事项。
1. 连接电源和信号源首先确保功率计已连接到适当的电源，并连接到待测的电路或电器上。
接通电源后，确认仪器已准备就绪。
2. 设置参数在进行功率测量之前，用户需要设定功率计的参数，包括电压范围、电流范围、功率范围等。
根据具体的测量需求灵活调整参数，确保测量结果准确可靠。
3. 进行功率测量根据已设定的参数，开始进行功率测量。
此时可以实时监测功率值的变化，同时注意仪器显示屏上的数据信息，确保测量过程中没有异常情况发生。
4. 记录数据在完成功率测量后，及时记录测量结果。
用户可以选择将数据保存在功率计内部存储器中，或通过数据接口传输到外部设备进行存档和分析。
5. 断开连接在使用完功率计后，记得断开与电路或电器的连接，关机并拔掉电源线。
定期对功率计进行清洁和维护，确保其正常运行。
注意事项：1. 在操作功率计时，务必按照操作手册的要求进行，避免操作失误导致仪器损坏或数据不准确。
2. 避免过载操作，根据电路或电器的功率范围合理设定功率计的参数，以免损坏设备。
3. 在测量高压电路时，要格外小心谨慎，避免发生安全事故。
4. 注意保护仪器免受潮湿、高温和振动等外部环境的影响，确保其长时间稳定运行。
通过以上操作说明，您可以更好地掌握功率计的正确使用方法，确保准确测量电路或电器的功率情况，为节能提供科学数据支持。
希望您能遵循以上操作步骤，正确操作功率计，确保测试结果的准确性和可靠性。
谢谢！。
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Selecting the Current Range /选择电流量程 选择电流量程
1.按下CURRENT,就会出现电流量程选择菜单,显示电压的显示屏上的值就 会一直跳动. 2.按向上或向下键则,可改变电压量程,当一直按向上会选到AUTO,此时,电 压选项上面的AUTO指示灯会亮起.说明此时选择是自动调整. 3.按下ENTER键,可以确定下电流量程.
2.
开机时电流和功率都没法读取, 开机时电流和功率都没法读取,只显示 - -OL- 或- -OF- ? AN:说明设置的电流量程或电压量程太小。需要按VOLTAGE或CURRENT进行重新设
置量程,一般EE或Power工程师借过去debug或分析回路功率时会选择比精确的量程, 故会将量程设得很小。
3.
当峰值因数CF=3时,电流量程:0.5~20A,当峰值因数CF=6时,电流量 程:0.25~10A
标示红色的A显示屏功能选择 V: 每按一下FUNCTION, V或A或W等字体颜色会呈现红灯一直闪烁,其中m、K 和M是量级前缀（m=10-3,k=10,3,or M10,6），VA、var和TIME是？?
PS：WT-210 使用说明书 ：
功率计WT-210使 用说明书
Thank you !
TPV Corporate Presentation
1.按下 VOLTAGE,就会出现电压量程选择菜单,显示电压的显示屏上 的值就会一直跳动. 2.按向上或向下键则,可改变电压量程,当一直按向上会选到AUTO,此时,电 压选项上面的AUTO指示灯会亮起.说明此时选择是自动调整. 3.按下ENTER键,可以确定下电压量程.
当峰值因数CF选择为3时,量程为15~600V,当CF=6时,量程范围为7.5~300V
在B显示屏处选择功能-电流A 每按一下FUNCTION, V或A或W等字体颜色会呈现红灯一直闪 烁,其中m、K和M是量级前缀（m=10-3,k=10,3,or M10,6）， PF、deg和%是？?%仅在测试调波时使用。
选择C显示屏功能为-功率W
测试平均功率功能
关于求平均值功能 求平均值功能对测量的值执行平均计算或平均变化计算.当电源或负载引起 测试数值在较大的范围内变动,无法平稳.或者输入信号是低频信号时, 常应用 到求平均值功能,使得所测得值容易读取.测试的项目包括:电压、电流和功率。 选择SETUP键,按向上或向下,选到AVG,点击ENTER进入选项进行选择 (ON/OFF/TYPE),选择ON则显示屏底下的AVG指示灯会亮绿灯.
电压/电流 电压 电流：＆plusmn;（读数的0.1％＋量程的0.1％） 电流 功率： 功率：＆plusmn;（读数的0.1％＋量程0.1％） 外型尺寸： 一般规格 外型尺寸：
WT210: 约213(宽)＆times;88(高)＆times;37: 约3公斤
EP：Exponential Averaging 平均指数
Lin：Moving Averaging 移动平均
WT-210 数字功率计技术参数
WT210技术规格 技术规格
额定值（范围） 额定值（范围）
电压：15/30/60/150/300/600 V
电流: 电流
直接输入：5/10/20/50/100/200 mA(仅WT210) , 0.5/1/2/5/10/20 A(WT210/WT230) 外接输入(选用 选用)：2.5/5/10V 或 50/100/200 mV 外接输入 选用 频率范围 DC，0.5Hz～100kHz 基本精度(45Hz＆le;频率f＆le;66Hz)
WT-210使用过程常遇到的问题解答 使用过程常遇到的问题解答
1. 功率往上调,值会变化但是往下调时却没有变化 还是维持在高的电压时的 功率往上调 值会变化但是往下调时却没有变化,还是维持在高的电压时的 值会变化但是往下调时却没有变化 数据? 数据 AN: 按SETUP进Pnlrse项,选择YES后Enter进行数据初始化设置. 如下:
电流或电压的值很小，只有 左右（ 左右） 电流或电压的值很小，只有0.003W左右（理论上应是 左右 理论上应是0.1W左右）? 左右 AN:说明AVG平均电压功能被开启，所测的值是平均值。解决的方法是进SETUP的
误。）
AVG项，选择off。功率计面板上的AVG项绿灯就会熄灭，此时就是我们需要测试的 。 峰值数据。（备注：这项测试平均值，每次测试前均要确认一下是否被开启，以免测试错
WT-210功率计操作手冊 功率计操作手冊 功率计
From：Jack.Wu ：
Update date: 2010-2-1
按键 功能/ 功能/单位 8字形显示屏
手柄 电源开关 排气孔
(1). WT-210 Digital Power Meter User’s Manual (2).工作环境温度 to 40℃, 环境湿度 工作环境温度:5 工作环境温度 ℃ 环境湿度:20 to 80% Selecting the Voltage Range /选择电压量程 选择电压量程