3

4

 Please design and produce according to international standard of EN61010-1 and international 

     safety code of EN61010-2-032 by abiding by safety standard of duplex insulation of CAT   
     600V strictly.

  Adopt power measurement system which consists of chips by new high-performance and 

     large-capacity chip microprocessor and the latest special high-precision chips used for power 
     measurement with high integration level and reliable performance.T

  hey c an b

  e u

  sed t o r ealize

     multiplex control, complex calculation and measurement display functions of power/harmonic 
     measurement system by large-capacity software.

 Input measurement of three-phase three-wire, three-phase four-wire and single-phase wires
 Measurement of true effective value
 To measure active power, inactive power and apparent power which contains harmonics for 

     20 times correctly

 To measure total harmonic distortion rate of voltage/current signals for at most 20 times and 

     harmonic components of various orders correctly

 To provide USB communication record interface and special WINDOWS window image 

     software.

 Note: UT241 has no this function.
 To facilitate instrument operation by automatic range conversion circuit and panel key.

3

Technical specifications

Tolerance limit: 

 (a% of reading + word quantity); Warranty period: 1 year

Ambient temperature: 23

5 

Ambient humidity: 45~75%RH

AC voltage (true effective value)

Range

Accuracy

Resolution

Input impedance

The maximum permissible overload protection voltage:600V(r.m.s)

Frequency

~

Range

Accuracy

Resolution

AC current (true effective value)

Range

Accuracy

Resolution

The maximum permissible overload protection current: 

1000A

UT241/242/243 OPERATING MANUAL 

UT241/242/243 OPERATING MANUAL