Battery Replacement Procedure; Troubleshooting - AEMC 3711 User Manual

Battery Replacement Procedure

The Clamp-On Ground Resistance Testers are powered by a single 9V
battery. The battery replacement indicator will display continuously when
battery replacement is required.
Recommended replacement type is Alkaline (IEC 6LF22, 6LR61 or
NEDA 1604A). Ni-Cad batteries may also be used. To change the
battery, refer to Figure 15, page 18 and follow this procedure.
1. The instrument must be OFF and disconnected from any conductor.
2. Place the meter face down and remove the two Phillips screws on
the back of the instrument.
3. Remove back cover by pulling it down and away from the instrument.
4. Lift the battery away from the case and disconnect the battery.
5. Connect the new battery and position the leads so that they won't get
pinched when the cover is replaced.
6. Replace the back cover noting that it slips beneath the hold down lip
and fits securely into position.
7. Install and tighten screws.
Typical battery life is approximately 8 hours of use or about 1000
separate 30-second measurements.

Troubleshooting

Symptom
Instrument will not turn ON
Continuous audible tone
Display is erratic
Function controls inoperative
Light pulsing audible beep
Ground Resistance Tester Models 3711 and 3731
Indication/Recommended Action
Low Battery
Replacement required
Alarm setpoint tripped
Deactivate Alarm or
Change Setpoint Trigger mode
Foreign matter in jaws
Clean jaw mating surfaces
Hold button on
Turn HOLD off
Normal operation
Battery power management feature
- 35 -