Yokogawa WT310E(H) Single-phase Digital Power Analyzer

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Benefits of the Yokogawa WT310E, WT310EH 1-phase Digital Watt/Power Meter

  • 1-phase digital watt meter, high accuracy with fast display and data update.
  • Standby measurements according to IEC62301/EN50564, Energy Star and SPECpower.
  • Easy integration into PLC environments with Modbus/TCP (Ethernet).

Yokogawa WT310E(H) Single-phase Digital Power Analyzer

The compact, 1-phase power meters of the WT310E(H) series have a basic accuracy of ±(0.1% of reading + 0.05% of RMS range) and are ideal for precise measurement of power consumption of electrical devices, as well as for energy efficiency and energy saving studies. The lowest currents, for example, can be measured with the WT310E from 50 µA with specified accuracy.

  • Simultaneous harmonic analysis with high bandwidth.
  • Automatic adjustment of the data update rate.
  • Automatic range switching for integrating measurements.
  • Basic accuracy for power measurements (50/60 Hz): ±(0.1% of the measured value + 0.05% of the effective value measuring range).
  • Frequency bandwidth WT310EE: DC, 0.1 Hz...100 kHz; WT310EH: DC, 0.1 Hz...20 kHz.
  • Current measurement range direct input WT310E: 12 measuring ranges/5 mA...20 A; WT310EH: 6 measuring ranges/1...40 A.
  • RMS voltage ranges: 6 measuring ranges/15...600 V.
  • External sensor input EX1: 2.5/5/10 V; EX2: 50/100/200/500 mV/1/2 V.
  • Signals with crest factors up to 300 measurable in all ranges.
  • Simultaneous measurement of RMS, MEAN, and DC voltage.
  • Frequency measurement: 2 channels (voltage and current).
  • 4x 7-segment LED displays
  • Sampling rate 100 kS/s (16 bit).
  • Data update rate 100/250/500 ms/1/2/5/10/20 s, Auto.
  • Harmonics analysis incl. THD calculation up to the 50th order available (option -G5).
  • Automatic range setting in integration mode.
  • Comparator function.
  • Interfaces: USB standard, GPIB/IEEE488 or RS232 (selectable), Ethernet (Modbus/TCP) available (option -C7).
  • Free PC application software WTViewerEfree for parameterization, control and data acquisition included in the scope of delivery.

Model Overview

ModelDescription
WT310ESingle-phase digital Watt meter.
Basic accuracy (50/60 Hz): ±(0.1% from measured power value + 0.05% from RMS measurement range), 6 voltage ranges 15...600 VRMS (Crest factor 3), 12 current ranges 5 mARMS...20>ARMS (Crest factor 3). Measurement of VRMS, Vmean, VDC, Vpeak, ARMS, ADC, Apeak, W, VA, var, cos phi, deg, ±Wh, ±Ah, CF, Hz and math. functions Standard with integrator (up to 10,000 h), measurement value memory, max. value memory, filter and frequency counter.
Standard with USB interface, GPIB/IEEE488.2, or RS232C interface (pease select), test certificate.
WT310EHSingle-phase digital Watt meter.
Basic accuracy (50/60 Hz): ±(0.1% from measured power value + 0.05% from RMS measurement range), 6 voltage ranges 15...600 VRMS (Crest factor 3), 6 current ranges 1 ARMS...40 ARMS (Crest factor 3). Measurement of VRMS, Vmean, VDC, Vpeak, ARMS, ADC, Apeak, W, VA, var, cos phi, deg, ±Wh, ±Ah, CF, Hz and math. functions Standard with integrator (up to 10,000 h), measurement value memory, max. value memory, filter and frequency counter.
Standard with USB interface, GPIB/IEEE488.2, or RS-32C interface (pease select), test certificate.

Options

OptionDescription
StandardUSB
-C1GPIB/IEEE488 interfacePlease select one. Only one optionen (-C1 or -C2) can be selected for free.
-C2RS232C interface
-C7Ethernet interface incl. Modbus-TCP protocol
-EX1External sensor input 2.5 V/5 V/10 VOnly one can be selected at a time
-EX2External sensor input 50 mV/100 mV/200 mV/500 mV/1 V/2 V
-G5Harmonics measurement
-DA4D/A output (4 channels)
-SPUModified voltage range 30...1200 VRMS (max. input voltage 1000 VRMSf), frequency range DC...30 kHz. A calibration protocol has to be ordered separately instead of standard test certificate.