Conform with European Union standard
1.1.4 Maintenance Practices for Safety
The operator must first pull out the test lead when the meter's case is
opened or the battery cover is dismantled.
The designated replacement parts must be used at the moment of
maintenance.
The operator must cut off all relevant power supplies before opening
the meter. At the same time, the operator must avoid damage to the
meter's elements by ensure that he himself doesn't carry any static.
The meter can only be calibrated, repaired and maintained by
professionals.
When the meter's case is opened, the operator must understand the
fact that the presence of some capacitance may promise the
dangerous voltages even if the power supply to the meter is cut off.
The operator should stop using and maintain the meter immediately if
any abnormality has been observed on the meter. The operator must
see to it that the meter cannot be in service unless it is proved
conforming.
When the meter is left idle for a long period, the operator shall remove
the battery and place it in a place free from high temperature and
humidity.
1.2 Input Protection Measures
The meter can sustain the maximum input voltage of 600V (DC/AC)
at the moment of voltage measurement.
The limit voltage is 250 ACV or the equivalent RMS voltage when the
resistance, continuity or diode is under measuring.
The protective tube (F200mA/250V) is used for protection purpose
when mA current measurements are carried out. The protective tube
(F10A/250V) is used for protection purpose when A current
measurements are carried out.
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