the battery immediately. Battery with low energy level will
result in wrong meter readings, which might result in
electrical shock or physical hurting.
* When conducting voltage measurements of category II, the
voltage should never exceed 1000V; When conducting
voltage measurements of category III, the voltage should
never exceed 600V.
* If the shell (or part of the shell) of the meter is taken off,
please do not use the meter.
1.1.3 Safety symbols:
The following are symbols used on the surface of the meter
and/or in the instruction manual:
3
1.1.4 Safe maintenance habits
* Always pull out the measuring tips before opening up the
shell of the meter or taking off the battery cover.
* Always using designated spare parts and components when
repairing the meter.
* Please turn off all related power supply, and make sure that
you are not carrying static charge before taking off the
shell or part of the shell of the meter, in order to avoid
damaging parts of the meter.
*
Only technicians who have complete knowledge of the
meter and the danger of electrical shock are permitted to
perform the following operations: meter calibration,
maintenance, and service, etc..
*
After taking off the shell of the meter, please always keep in
mind that there is still danger from high voltage of some of
the capacitors in the meter even if the power of the meter
is turned off.
* In case that anything abnormal is observed for the meter,
please stop using it immediately and send it for service.
Please make sure that this meter can not be used before it
passes the quality inspection again.
*
If the meter is not to be used for a long period of time,
please take off the battery, and keep it away from high
temperature and high humidity.
1.2 Input protecting measures
* When conducting voltage measurements (excluding the
range of 200mV), the highest input voltage allowed is DC
1000V or AC 750V.
(for the range of 200mV, the highest input voltage allowed
is AC 250V or equivalent effective voltages)
* When conducting measurements on resistor and diodes or