VC4105A Earth Resistance Tester:Safety instruction

1、Please read out this manual thoroughly before using the meter.
2、Do not use the instrument if testing leads or the meter being damaged.
3、Do not connect electricalconductor which over DC 60V，AC36V RMS, it has reached the electric shock limit.
4、Cut off the electric power before measuring the resistance,
5、Meter storage should not under high temperature environment, direct sunlight will shortened lifespan of the LCD

6、Please replace the batteries while low power symbol”“displayed. Take out the batteries in time before long time storage, batteries leakage will damage the meter.
7、Do careful when measuring with bare wire.
8、When power feed with outer adaptor, inner batteries supply will automatically cut off and no charging. Attention: please select for *-
power mode.
9、 Earth resistance test requirements:
a.AC connect, earth resistance should not over 40;
b. Safe connect, earth resistance should not over 4Q;
c. DC connect, earth resistance value depend on detailed system requirements.
d. Earth resistance for place of lighting-protection should not over 10Ω;
e. Joint grounding for shielding system, earth resistance should not over 1Ω;