Safety Warning; Characteristics - UNI-T UT241 Operating Manual

1 Safety Warning

The instrument shall be designed according to safety standard of
Electronic Measurement Products (IEC61010-1). The manual includes guaranteeing safety
status of instruments for safe use, warnings and safety statutes which must be executed by
users. Please read following instructions before use:
LCD will display warning symbol if measured voltage exceeds AC 30V. Be sure to operate
carefully and finger also cannot longer than testing pen.
It is not allowed to measure voltage which is higher than permissible input value.
Please inspect instrument and testing pen before use. Measurement is not allowed under
following circumstances: Nude testing pen, damaged shell without LCD.
It is not allowed to operate the instrument for wet surface or hand of operator.
It is not allowed to open cell cover during measurement.
Guarantee power off for instruments when opening cell cover.
Instruments cannot meet safety standards until use with testing pen together. Be sure to
replace testing pen with the same model and electric dimension if testing pen shall be
replaced due to damage.
Instruments cannot be exposed in wet locations with strong light, high temperature.
Please clean instrument shell by wet cloth or cleaner.
Please store after drying when instrument is wet.
Warning
Please read the operation manual especially safety content carefully before using instruments!
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UT241/242/243 OPERATING MANUAL
Safety Requirements for
UT241/242/243 OPERATING MANUAL
Safety Mark
Please refer to manual for important safety marks.
HV danger
Grounding
Duplex insulation (for Class II safety equipment)
Battery under-voltage
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2 Characteristics

UT240 series of digital three-phase forcipiform power/harmonic meter is a portable intelligent
power/harmonic measuring instrument. It has integrated functions such as ampere meter,
voltmeter, power measurement instrument and harmonic analysis meter, etc. With powerful
measurement and data treatment software, instrument consists of voltage, current, power and
harmonic channels and micro single-chip machine system. It can be used for measurement,
calculation & display of parameters such as voltage, current, active power, apparent power,
inactive power, power factor, phase location angle, electric energy statistics, frequency, phase
sequence, total harmonic distortion rate and harmonic components, etc with stable performance
and convenient operation. It is especially suitable to measurement & repair of site power
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/
harmonic meters are also your ideal choice for three-phase power measurement and quality an
alysis of electric energy.
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