Model 5112 Operation Manual
Applied Instruments Inc
4 Servicing Instructions
With normal use, the only servicing of the unit that should be expected is replacement of
the battery when it becomes worn out.
All service should be performed by a qualified technician only.
WARNING: Risk of shock is present when the cover is removed and AC
power is present. Be sure to disconnect from AC before opening unit.
4.1 Battery Replacement
1. Obtain a new battery pack from Applied Instruments. This pack includes a
mounting bracket, cable and connector. Only the pack from Applied Instruments
should be used to ensure safe operation.
2. Ensure that the unit is OFF and unplugged.
3. Remove the six screws on the sides of the bottom half of the clam shell cover.
4. Carefully remove the bottom half of the clam shell and unplug the battery cable
from the circuit board while doing so. The battery pack is attached to the bottom
half of the clam shell.
5. Remove the six screws from the bottom of the clam shell half holding the battery
pack.
6. Replace the battery pack and reassemble in the reverse order.
7. Test for safe operation.
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