Токоизмерительные клещи UNI-T UTM 1243 (UT243). Инструкция на английском языке

Power and Harmonics
Clamp Meters
P/N: 110401102607

UT241/242/243 OPERATING MANUAL
1  Safety Warning------------------------------------------------------------------------------------------------- 1
2  Characteristics------------------------------------------------------------------------------------------------- 2
3  Technical specifications-------------------------------------------------------------------------------------- 3
4  Instrument Layout--------------------------------------------------------------------------------------------- 9
5  Key function----------------------------------------------------------------------------------------------------13
6  Preparation before measurement------------------------------------------------------------------------ 16
7  Measurement function of electric energy---------------------------------------------------------------16
8  Harmonic measurement function-------------------------------------------------------------------------37
9  Setup mode---------------------------------------------------------------------------------------------------- 45
10  Battery replacement ---------------------------------------------------------------------------------------- 47
11  Maintenance--------------------------------------------------------------------------------------------------- 48

UT241/242/243 OPERATING MANUAL                          UT241/242/243 OPERATING MANUAL
1   Safety Warning                                                                              Safety Mark
The instrument shall be designed according to safety standard of  Safety Requirements for       Please refer to manual for important safety marks.
Electronic Measurement Products   (IEC61010-1). The manual includes guaranteeing safety               HV danger
status of instruments for safe use, warnings and safety statutes which must be executed by             Grounding
users. Please read following instructions before use:
Duplex insulation (for Class II safety equipment)
LCD will display warning symbol if measured voltage exceeds AC 30V. Be sure to operate         +  Battery under-voltage
carefully and finger also cannot longer than testing pen.
It is not allowed to measure voltage which is higher than permissible input value.           2   Characteristics
Please inspect instrument and testing pen before use. Measurement is not allowed under
following circumstances: Nude testing pen, damaged shell without LCD.                      UT240 series of digital three-phase forcipiform power/harmonic meter is a portable intelligent
It is not allowed to operate the instrument for wet surface or hand of operator.             power/harmonic measuring instrument. It has integrated functions such as ampere meter,
It is not allowed to open cell cover during measurement.                                     voltmeter, power measurement instrument and harmonic analysis meter, etc. With powerful
Guarantee power off for instruments when opening cell cover.                                 measurement and data treatment software, instrument consists of voltage, current, power and
Instruments cannot meet safety standards until use with testing pen together. Be sure to     harmonic channels and micro single-chip machine system. It can be used for measurement,
replace testing pen with the same model and electric dimension if testing pen shall be     calculation & display of parameters such as voltage, current, active power, apparent power,
replaced due to damage.                                                                    inactive power, power factor, phase location angle, electric energy statistics, frequency, phase
Instruments cannot be exposed in wet locations with strong light, high temperature.          sequence, total harmonic distortion rate and harmonic components, etc with stable performance
Please clean instrument shell by wet cloth or cleaner.                                       and convenient operation. It is especially suitable to measurement & repair of site power
Please store after drying when instrument is wet.                                            equipment and power supply wires as well as evaluation of electric energy quality of power grid.
With portable forcipiform structure, the instrument has little volume and light weight. User can
carry with it to facilitate measurement. Such series of digital forcipiform three-phase power/
Warning                                                                                 harmonic meters are also your ideal choice for three-phase power measurement and quality an
Please read the operation manual especially safety content carefully before using instruments!  alysis of electric energy.
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