WT210/WT230 Digital Power Meters
Contents
1. See 8 pages or Bulletin 7604 32E for details A wag ER m us Wan W m l f mise i N ga a Ari s N ddh AE e a ta d n DBD mea Aas 2b a i re We g Bw UAS am mig z T ivr wrte i e i w T a a 24 ee BA an a gt Ba a caw a a ah ay ung iA A rah Ahr farts E A nN al AT eae ee fri uns A MEZ A a Pa ae ALTIATY fay SOIT TaKAAT NAAR Pari rr it rae EE Viw FE E V V v v EEV F E 01i i vv mw amp w wo EE VE WEI A W 1E i Wu y w i d EE Gy wite f wi a a ww d y i Low frequency Equipment Commercial Power Supplies Inverters NEW ila ARR NEW Pe NEW Low frequency measurements starting at 0 5 Hz 0 1 100 kHz power frequency range Low frequency measurements starting at 0 5 Power accuracy is even better than in former WT Now you can obtain more precise Hz can be used with evaluations of series measurements on high frequency equipment cycloconverter and when a motor are started such as inverters 1 Maximum display is 140 of the rated input 1 input 2 Conditions apply to accuracy from 110 to 130 130 input WT230 5mA 960 01 With 960 01 Max 400 Arms With 751552 Max 1000 Arms Surge current and maximum load state MAX hold function for voltage current and power Constantly changing signals NEW Ja ar Quick response with display updating as fast as every 0 1 second DFY SYY NTL E F AaAate FA u L Wav VTA V Pa Co el IKA hA AAT Aen GAF abel elelas 0l mm er U A LileTo BMILPLT ae fi2. 58929 758917 Two in a set 758917 Two in a set set adapters in a set 1 5 mm Allen and WT 230 Total length 75 cm Rating 300 V Rating 1000 V wrench included for tightening Length 50 cm Rating 1000 V 32 A E For current measurements with wires connected W For high current measurements up to 1000 Arms W For high precision 0 05 40 uA 960 01 Clamp on Probe 151 552 Clamp on Probe 151 574 Current Transducer eee ee EE ou u E a ee aa E a a ee I 366921 758917 Conversion adapter Measurement leads p a d f i I HA 758924 S5921 A Conversion adapter Fork Terminal Adapter Measurement frequency range 20 Hz to 20 kHz Measurement frequency range 30 Hz to 5 kHz Wide dynamic range 0 600 A DC 600 A peak AC Basic accuracy 1 0 of reading 0 2 mA 40 Hz to 1 kHz Basic accuracy 0 3 of reading Wide measurement frequency range DC and up to 100 kHz 3 dB Maximum allowed input AC 400 Arms Maximum allowed input AC 1000 Arms max 1400 Apk AC High precision fundamental accuracy 0 05 of reading 40 uA Output 10 mV A Current output type 1 mA A 15 V DC power supply connector and load resistor required A tel Id adapter 366921 or 758924 i ired for connection A Separately sold fork terminal adapter set 758921 measurement For detailed information see Power Meter Accessory Catalog Bulletin to WT210 WT230 This n a M amp C Ae Fae detailed leads 758917 etc are re
3. IB communication interface Serial RS 232 C communication interface Power cord ioe UL CSA standard VDE standard a AS standard LQ BS standard External input 2 5 5 10 V External input 50 100 200 mV HRM Harmonic measurement function DA12 12 channel DA output CMP Comparator and D A 4 channels each Select one Options Select one Select one E Standard Accessories Power 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 manual E Wiring Types and Model Numbers ing ror rene snglephaseewie S dT The phase awir votagss Zoren 7 weeps o Sd E Rack mounts Ask Yokogawa for information on rack mounts in which WT210 and WT230 are combined E Accessories sold separately Model number Description B9317WD 1 5 mm hex wrench For fastening cable on 758931 B9284LK External sensor cable For external input 50 cm Related Products 758917 758922 758929 758923 758931 B9284LK a a R e a aT E _ LSS SS SS SS ee E ee Se Measurement leads Small alligator adapters Large alligator adapters Safety terminal adapter set Safety terminal adapter set External sensor cable Two leads in a set Use 758917 in For connection to measurement leads For connection to measurement leads spring hold type Two adapters in a Screw fastened adapters Two For the external input of the WT210 combination with 758922 or 7
4. YOKOGAWA ENERGY SAVING TOOLS Digital Sampling Power Meters with Superior Cost Performance Digital Power Meters WT 210 W T 230 W EA ees a S Year7 Warranty WV Basic power accuracy 0 1 DC measurement 0 5 Hz to 100 kHz power frequency range Compact design half rack size 5 mA range for very low current measurements model WT210 only Line filter function High speed data update as fast as 10 readings per second Harmonic measurement function available User calibration capability www yokogawa com tm Bulletin 7604 00E and subscribe to Newswave our free e mail newsletter 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 Wide range of 5 mA to 20 A The built in 5 mA range lets you measure currents as low as 25 uA 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 WT Viewer for the WT210 WT230 Easily Acquire and Manage Power Measurement Data from Your PC
5. als ganged and power plug Current input terminals ganged and power plug 1500 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 WT230 External dimensions for WT210 Approximately 213 x 88 x 379 mm WHD excluding projections External dimensions for WT230 Approximately 213 x 132 x 379 mm WHD excluding projections Approximately 3 kg for WT210 approximately 5 kg for WT230 Complying standard EN61010 1 Overvoltage category Installation category II Pollution degree 2 Weight Safety standard Emission Complying standard EN61326 Class A EN61000 3 2 EN61000 3 3 AS NZS 2064 Class A Immunity Complying standard EN61326 Annex A E Exterior View Unit mm E Model Numbers and Suffix Codes Description 760401 wT 210 single input element model UL CSA standard Powerco D VDE standard PRC AS standard BS standard GP IB communication interface Select one Serial RS 232 C communication interface EX1 External input 2 5 5 10 V External input 50 100 200 mV 4 channel DA output CMP Comparator and D A 4 channels each Note The WT210 communication interface cannot be changed or modified after delivery Select one Select one Description 7e502 stitsisisdzd WT230 2 input element model 760503 ssid WT230 3 input element model Interface GP
6. cations 500 ms 5 Hz lt f lt 100 kHz SH1 AH1 T5 L4 SR1 RL1 PRO DC1 DT1 CO 1sec 2 5Hz lt f lt 100 kHz Protocol Conforms to IEEE Standard 488 2 1992 2 5sec 1 5Hz lt f lt 50 kHz Code used ISO ASCII code 5sec 0 5Hz lt f lt 20 kHz Addresses 0 30 talker listener addresses can be set Accuracy 0 06 of rdg Serial interface RS 232 C Conditions Input equal to at least 30 of voltage current rated range Transmission mode Asynchronous Frequency filter function ON at 200 Hz and below Baud rates 1200 2400 4800 9600 bps Frequency filter cutoff frequency 500 Hz Specifications Calculation Functions Single Three phase 3 wire Three phase 3 wire Three phase 3 2 voltages 3 voltages phase 4 wire 2 currents 3 currents wire Voltage V V1 V3 2 V1 V2 V3 3 Current YA A1 A3 2 A1 A2 A3 3 Active power XW W1 W3 Reactive power vari 4 VA W vari var3 var var Apparent x VAi Vi x Ai VA1 VA3 3 VA1 VA3 8 VA1 VA2 VA VA1 VA2 VA3 VA VA var var2 var3 Power factor PF PF Phase degi p shes aa cos Wi VAi COS QLW LVA Notes 1 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 measureme
7. cy in range of 40 440 Hz 99999 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 WT 230 individual harmonic levels rms voltage rms current active power fundamental frequency PF harmonic distortion rate individual harmonic content Measurement element These parameters can only be measured simultaneously for a single specified input element Maximum display Display digits Sampling speed window width and analysis orders The values for these parameters vary according to the input fundamental frequency as shown below Fundamental frequency Sampling speed Window width Analysis orders 40 lt f lt 70 Hz f x 512 Hz 2 periods of f 50 70 lt f lt 130 Hz f x 256 Hz 4 periods of f 50 130 lt f lt 250 Hz f x 128 Hz 8 periods of f 50 250 lt f lt 440 Hz f x 64 Hz 16 periods of f 30 FFT data length 1024 FFT 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 x 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 valu
8. e 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 type Frequency D A output A RE 9 SSE Se SSG Sees Se a ee eee o OMi O 0 0 4 aaa Ea 2 5V H f 4 4 4 f 4 F 4 0 5V 4 f F 4 4 F 0 0 5Hz 1Hz 10Hz 100Hz kHz 10kHz 100kHz Display value Integration D A output ee me en en en en en en nn en nn 1 For input equal to 140 of rating BE SSSR ERE pee eects For rated input t0 Rated setting time Integration time Other parameters D A output Display Output 7 5V 140 7 0V 7 0V 100 5 0V 0 OV 50V p 100 5 0V 140 7 0V Note For PF and deg there is no output between 5 and 7 V When an error occurs approximately 7 5 V are output Display value 100 140 140 100 oV External 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 ou
9. er output voltages NEW Comparator output fa Recording to a Recorder D A output GO NO GO Evaluations on Testing Lines 4 channel comparator function This option lets you output a variety of measurement data such as voltage current and power measurements with 5 V rating for recording on a recorder The recorder can then be used to check changes in data over time A 4 channel relay contact output normal open and normal close pair lets you do GO NO GO evaluations on production and testing lines wave rectification signals Instead of taking notes you can use the internal memory to store and recall settings and field measurement data Recorder Information on the features and functions of Yokogawa s WT210 WT230 accessories and related products is also available at our web site http www yokogawa com tm 3 Popular functions on the WT200 were incorporated into WT210 and WT230 Basic Characteristics Example of Frequency power Accuracy Characteristics Example of WT210 Current Accuracy is i ms TAI Li a 3 ad a a ae gt 5 4 g ae all ES sf 0 so S D 0 E ma 2 4 S 4 E 2 6 2 2 8 10 10 0 1 1 10 100 1000 10000 100000 Frequency Hz Input level relative to set range of range Current Input Surge Withstanding Ability Example of Influence of Common Mode Voltage 350 5 300 4 x WT230 150 V range il all Spec and reference valu
10. es WT230 500 mA range Ill il were el th a N PM r TN Surge current value Arms Tolerance of range ine TYY Tt a iJ 50 0 lt i TUN UTI TT o TT C 4 0 01 0 1 1 10 100 0 1 10 100 1000 10000 100000 Input current time width seconds Frequency Hz Example of D A Output Response Comparison with Former Models WT200 WT130 Binding post Plug in terminal safety terminal Voltage and current basic accuracy 0 25 of rng 0 2 of rng Power basic accuracy 0 3 of rng WT200 A 0 35 of rng WT130 0 2 of rng L7 sle p Iri pul FR Frequency range DC 10 Hz to 20 kHz m4 pas ere Sse Fyi Voltage input terminal External input terminal r Assured accuracy range 10 to 130 of range rating to 130 of range rating Display updating interval 0 25 second fixed 0 1 0 25 0 5 1 2 5 seconds V A W display digits 4 digits WT130 N 5 digits WT200 5 digits Line filter function Yes fc 500 Hz Frequency filter function Yes fc 300 Hz Yes fc 500 Hz i Key lock V Dr agul tsps ey loc ee es Harmonic measurement display m updating interval Approximately 3 seconds 0 25 0 5 1 2 5 seconds Aa Remote signals when EXT HOLD and EXT TRIG are added EXT START All six signals listed to the left are added comparator is installed JEXT STOP EXT RESET and INTEG BUSY are not added Pin assign is changed display upd ate ti me Ti rr li Online data format ASCII ASCII binary Wavefor
11. es and related products is also available at our homepage http www yokogawa com tm Protecting the global environment CAUTION Yokogawa s products are developed and produced in facilities that have received Read the user s manual carefully for correct and safe use of the ISO14001 approval instrument YOKOGAWA ELECTRIC CORPORATION Subject to change without notice Test and Measurement Business Div Phone 81 55 243 0313 Fax 81 55 243 0396 Ed 02 b Copyright 2002 E mail tm csv yokogawa co jp Printed in Japan 307 YG YOKOGAWA CORPORATION OF AMERICA Phone 1 770 253 7000 Fax 1 770 251 2088 YOKOGAWA EUROPE B V Phone 31 33 4641 806 Fax 31 33 4641807 YOKOGAWA ENGINEERING ASIA PTE LTD Phone 65 62419933 Fax 65 62412606 MS 12E
12. i i i mm Ww WwW WEE VEs Ls b d h 4 A d oe d Le ed lt I we W Ash GY tae L X et wy i Wk T y Extended Energy Measurement Applications Maximum integration time 10 000 hours Time can be set between 1 second and 10 000 hours 416 days in 1 second increments Battery equipment applications Integrating power measurement by polarity Power and current values can be integrated separately for positive and negative polarities Integrated values are shown with the decimal point moving according to the integrated value z g E a f A N AmmihAaAaTIAMnfn FAH A TIAN ATT AF A aelel Awm f AN w FA fe Te i aa rr ZA ug Be PECAR WI CNI iala mala Yor y y E Siy b I u e S F 719 SLI Y Pow RO L ASETA EEG wi a Vash w a y vE Miivv Wik V ua h E a ua a la alat ae i L A RP Gk Ww EEw External input for current sensor GP IB serial RS 232 C interface Intermittent Control Equipment Applications Average active power display The power of intermittent control equipment changes significantly over time The average active power Instantaneous power Average power in intermittent operations can be displayed which is highly effective for consumed power measurements Power i r Integrated power Wh Weteaciie panen y Integrated elapsed time Hours gp Calculate voltage current reactive power Large current Measurement Using C
13. ing post External input BNC connector insulation type A D converter Simultaneous conversion of voltage and current inputs Resolution 16 bits Maximum conversion speed Approximately 20 us approximately 51 KHz Range switching Ranges can be set manually automatically or through online controls Auto range function Range raising When a measurement exceeds 130 of the rating or when the peak value exceeds approximately 300 of the rating Range 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 switching Any 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 setting Measurement Functions Accuracy three months after calibration 0 2 or rdg 0 2 of m a 3 or rdg 0 2 of rng Conditions 0 5 Hz lt f lt 45 Hz 0 1 of rdg 0 2 of rng 0 5 Hz lt f l
14. m data communications outpu Yes need HRM Ei P Addressable mode B for Y N GP IB communications e5 0 Display digits factory default 4 digits 5 digits nline output data digits factory defaul 4 digits a Eri Q 5 a Specifications The latest product information is available at our web site htip www yokogawa com tm Review the specifications to determine which model is right for you Input Specifications Input type Floating input Resistance voltage divider Shunt input system Rated values ranges 15 30 60 150 300 600 V Direct input 5 10 20 50 100 200 mA WT210 only 0 5 1 2 5 10 20 A WT210 WT230 External input optional 2 5 5 10 V or 50 100 200 mV Measuring instrument loss Input resistance Approximately 2 MQ Direct input Approximately 500 mQ approximately 0 1 uH 5 200 mA WT210 input resistance Input capacitance Approximately 13 pF Approximately 6 MQ 10 mQ max approximately 0 1 uH 0 5 20 A WT210 Approximately 6 mQ approximately 0 1 WH 0 5 20 A WT230 External input Approximately 100 kQ 2 5 5 10 V approximately 20 kQ 50 100 200 mV Maximum instantaneous allowed input Peak voltage of 2 8 kV or rms value of 2 0 kV whichever is less 0 5 20 A WT210 WT230 Peak current of 450 A or rms value of 300 A whichever is less 1 cycle 20 ms duration 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 less Maximum ins
15. mum display 99999 to 999999 MWh MAh Modes Standard integration mode timer mode continuous integration mode repeat mode manual integration mode Timer 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 When the integrated value exceeds 999999 MWh MAh or falls to at least 99999 MWh MAN the elapsed time is saved and the operation is stopped display accuracy 0 1 of rdg 0 02 Starting stopping and resetting can be controlled through external contact signals This function is only available when option DA4 DA12 or CMP is installed Count over flow Accuracy Timer accuracy Remote control Internal Memory Functions Measurement data Stored data WT210 760401 Data for 600 samples Data for 30 samples WT230 760502 Data for 300 samples Data for 30 samples WT230 760503 Data for 200 samples Data for 30 samples Store interval Display updating interval and 1 second to 99 hours 59 minutes and 59 seconds 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 Recall interval Harmonic Measurement Function optional System PLL synchronization Measurement frequency range Fundamental frequen
16. nt 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 Pfi Wi VAi LW EVA Display Functions Display unit 7 segment LED light emitting diode Display areas 3 V A W VA var for each element integration elapsed time a Ss V A W PF deg for each element percentage content percentage THD V A W V AHz Vpk Apk Wh Ah for each element MATH Measurement parameters Maximum display Display resolution PF 1 0000 0 01 V A W VA var 99999 0 001 PF Wh Ah 999999 0 0001 VHz AHz 99999 Input frequency 20 000 Display digits 4 or 5 digits selectable by user Factory default setting is 5 digits Units m k M V A W VA var Hz ht deg Display updating intervals 0 1 0 25 0 5 1 2 5 seconds Response time Maximum 2 times the display updating interval time required for di
17. quired for connection to WT210 WT230 For 7515 52E information see http www yokogawa com MCC clamp htm 96001 detailed information see Power Meter Accessory Catalog Bulletin 7515 1 Use with low voltage circuits 42 V or less 52E A Due to the nature of this product it is possible to touch its metal parts Therefore there is a risk of electric shock so the product must be used with caution Free Application Software DAQLOGGER amp GateWT E GateWT is a software package that can collect data measured by digital power meter WT WTViewer for the WT21 0 and WT230 series including WT210 and WT230 through a GP IB or serial RS 232 Communication interface See Bulletin 04L00L00 00E for details i Download this software program from our web site LabVIEW Driver Software Free Easily Acquire and Manage Power Measurement Data form Your PC WT Viewer for the WT210 WT230 is a software application that allows you to load numeric and waveform data measured with the WT210 or WT 230 Digital Power Meter to a PC via GP IB or serial RS 232 C communications Visit our web site to register your product and download this software program http www yokogawa com tm WT210 a J LabVIEW is a registered trademark of National See our web site or the software catalog Bulletin 7604 32E for detailed specifications _ a Instruments renee Information on the features and functions of Yokogawa s WT series amp PZ accessori
18. splay 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 0 140 of voltage current range rating About Vrms Arms and Ah 0 5 of range rating Less than 0 5 is zero suppression Display scaling function Effective digits Selected automatically according to the digits in the voltage and current ranges 0 001 to 9999 Maximum display Minimum display Setting range Averaging function There are two averaging methods selectable by user Exponential average Moving average In 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 monitor An LED turns on when the input value is outside the range set for the auto range MAX hold function This function can be used to hold V A W VA var Vpk and Apk at maximum values MATH functions System When a function key on DISPLAY C is pressed to select the MATH 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 Functions Display resolution The minimum display resolution changes together with the integrated value Maxi
19. t 45 Hz 0 3 of rdg 0 2 of rng Temperature 23 5 C 45 Hz lt f lt 66 Hz 0 1 of rdg 0 1 of rng 45 Hz lt f lt 66 Hz 0 1 of rdg 0 1 of rng Humidity 30 75 RH 66 Hz lt f lt 1 kHz 0 1 of rdg 0 2 of rng 66 Hz lt f lt 1 kHz 0 2 of rdg 0 2 of rng Input waveform Sinewave 1 kHz lt f lt 10 kHz 0 07 x f of rdg 0 3 of rng 1 kHz lt f lt 10 kHz 0 1 of rdg 0 3 of rng Power factor cos 1 0 067 x f 1 of rdg In phase voltage 0 V DC 10 kHz lt f lt 100 kHz 0 5 of rdg 0 5 of rng 10 kHz lt f lt 100 kHz 0 5 of rdg 0 5 of rng Frequency filter ON at 200 Hz or less 0 04 x f 10 of rdg 0 09 x f 10 of rdg Scaling OFF Display digits 5 digits After CAL is executed Note In the accuracy calculation formula f is in kHz Add 10 uA to the current DC accuracy Add 10 uA x voltage reading to the power DC accuracy Power factor effect For cos 0 45 Hz lt f lt 66 Hz 0 2 of VA VA is a reading value of apparent power Reference data up to 100 kHz 0 2 0 2 x f of VA Indicated value tolerance for 0 lt cos lt 1 Note In the accuracy calculation formula f is in KHz Add tang x effect when cos 0 of power reading to the above power accuracy Note is the phase angle between voltage and current Effective input range 1 130 of voltage current range rating for accuracy at 110 130 add the reading tolerance x 0 5
20. tantaneous allowed input Peak voltage of 2 0 kV or rms value of 1 5 kV whichever is less 0 5 20 A WT210 WT230 Peak current of 150 A or rms value of 40 A whichever is less 1 second duration 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 less Maximum continuous allowed input Peak voltage of 1 5 kV or rms value of 1 0 kV whichever is less 0 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 less Maximum continuous common mode voltage 600 Vrms with output connector protective cover CAT II 400 Vrms without output connector protective cover CAT II with 50 60 Hz input CMRR 50 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 600 Vrms across input terminal and case Reference value up to 100 kHz Maximum range rating Range rating x 0 001 x f of rng or less voltage range and 0 5 20 A current range and external input range Maximum range rating Range rating x 0 0002 x 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 Input terminal type Plug in terminal safety terminal Direct input Large bind
21. to the above accuracy Accuracy 12 months after calibration Add the accuracy s reading tolerance three months after calibration x 0 5 to the accuracy three months after calibration Line filter function A low pass filter can be inserted in the input circuit for measurement The cutoff frequency fc is 500 Hz Accuracy with line filter on 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 Temperature coefficient 0 03 of range C at 5 18 C and 28 40 C Display updating intervals 0 1 0 25 0 5 1 2 5 seconds Lead lag detecting Lead 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 Measurement lower limit frequency Data updating rate 0 1 second 0 25 second 0 5 second 1 second 2 seconds 5 seconds Measurement lower limit frequency 25 Hz rng Range rdg Reading Frequency Measurements Communication Functions Optional for the WT210 Measurement inputs V1 V2 V3 A1 A2 or A3 select one GP IB or serial interface RS 232 C select one Measurement system Reciprocal system GP IB Measurement frequency ranges Electrical and mechanical specifications 100 ms 25 Hz lt f lt 100 kHz Conform to IEEE Standard 488 1978 JIS C1901 1987 250 ms 10 Hz lt f lt 100 kHz Functional specifi
22. tput pair Number of output parameters and settings Four parameters can be set separately on each output channel Contact capacitance 24 V 0 5 A D 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 BUSY Input TTL level negative pulse General Specifications Warmup time Approximately 30 minutes Operating temperature and humidity ranges 5 40 C 20 80 RH no condensation Storage temperature 25 60 C no condensation Maximum operating elevation 2000 meters Insulating resistance 50 MQ or higher at 500 V DC across all of the following areas Voltage input terminals ganged and case Current input terminals ganged and case Voltage input terminals ganged and current input terminals ganged Voltage input terminals ganged of each element Current input terminals ganged of each element and power plug and power plug Voltage input terminals ganged Current input terminals ganged Case and power plug Insulating 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 case Voltage input terminals ganged and current input terminals ganged Voltage input terminals ganged of each element Current input terminals ganged of each element Voltage input termin
23. urrent Clamps Online Power Meter Control and Recording Power Supply Harmonic Measurements Select either 50 100 200 mV or 2 5 5 10 V This option lets you control the power J content ratio and phase angle relative to A current clamp lets you measure currents meter through a PC or save datatoa __ fundamental frequency for up to 50 orders This without needing to disconnect the power supply PC circuit wiring 4 Please select EX1 2 5 5 10 V option when you use 960 01 GP IB serial interface RS 232 C RT option is well suited to power supply environment evaluations Measurement time is approximately 90 shorter than in former models This function lets you keep on the display voltage and current peak values voltage and current rms values and maximum values for active power apparent power and reactive power Half wave Rectification Intermittent Control Distortion Waves Measurement of DC components In addition to using DC inputs you can obtain precise measurements of signals containing DC components such as intermittent signals and half With measurement intervals as short as 0 1 second you can capture transient phenomena with a fine level of detail You can also reduce the time per measurement for increased through put in production testing Noisy Signals Line filter function fc 500 Hz This function lets you measure fundamental wave rms values for invert
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