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Basic Maintenance
Warning
To avoid shock, remove the test leads and any input signals before opening the case or replacing
the battery or fuses.
Opening the Meter Case
Caution
To avoid unintentional short circuit, always place the uncovered meter assembly on a protective
surface. When the case of the meter is open, circuit connections are exposed.
To open the meter case, refer to Figure 1A and do the following:
1. Disconnect test leads from any live source, turn the rotary switch to OFF, and remove the test leads from
the front terminals.
2. Remove the battery door by using a screwdriver to turn the battery door screws turn counter-clockwise.
3. The case bottom is secured to the case top by four screws and two internal snaps (at the LCD end).
Using a screwdriver, remove the four screws.
Replacing the Battery
The meter is powered by 1.5V x 2 batteries for 61-320 and a single 9V battery for 61-322 and 61-324.
To replace the battery, refer to Figure 1A.
Figure 1A
Form number TM61320-2-4 Rev 2 September 2002