Digital Power Meter WT310E


WT300E Series

Basic power measurement accuracy (50/60 Hz)

0.1% of reading + 0.05% of range 

Influence of power factor When power factor (λ)= 0 (S: apparent power) ±0.1% of S for 45 Hz ≤ f ≤ 66 Hz
Frequency bandwidth

DC, 0.1 Hz to 100 kHz (WT310EH DC, 0.1 Hz to 20 kHz)

Direct input current range

WT310E: 12 ranges/5 mA to 20 A, WT310EH: 6 ranges/1 to 40 A WT332E/WT333E: 6 ranges/0.5 to 20A

External current input

EX1:2.5/5/10[V] EX2:50m / 100m / 200m / 500m / 1 / 2[V](OP)

Expansion of effective input range for voltage & current (CF=6A)

2% to 260%*1

Expansion of maximum displaying value for voltage & current (CF=6A) 2% to 260%*2
Simultaneous measurement of RMS, Voltage MEAN & DC


Frequency measurement

2 channels (voltage & current)

Number of display item

4 items

Sampling rate

Approximately 100 kS/s

Data update rate

100m/250m/500m/1/2/5/10/20 sec, Auto

Harmonic measurement

Yes (OP/G5)

THD calculation maximum order setting

Yes (OP, 1 to 50th)

Auto ranging of integration


Communication Interface USB


GP-IB Yes GP-IB or RS-232
RS-232 Yes GP-IB or RS-232
Ethernet Yes (OP)
Modbus/TCP (Ethernet) Yes (OP,/C7)
IEEE standard for GP-IB IEEE488.2
Comparator function Yes
Viewer software (setting & data capturing) Free (included)

Our Partners