Equus 3320 - Auto-Ranging DMM - Manual (Page 12)

BATTERY AND FUSE REPLACEMENT
1. Turn the Digital Multimeter “OFF” and remove the test leads.
2. Remove the two screws on the back of the meter and sep-
arate the case.
3. Replace the fuse or batteries as necessary:
•
For battery replacement: Remove the batteries from
the battery compartment and replace only with two AA
(1-½ volt) alkaline batteries.
•
For fuse replacement: Remove the fuse from the fuse
holder and replace with a 0.315A/250V - UL Listed
Bussmann, GMA Type (Radio Shack GMA/270
series; #270-1046 ) fuse.
NOTE: Use a 0.315A/250V, 5x20mm type fuse ONLY -
Bussmann, GMA Type (Radio Shack #270-1046 or similar).
Using an incorrect fuse may result in serious injury and/or damage
to the unit.
4. Reassemble the case and secure with the two screws.
MAINTENANCE
1. No periodic maintenance is required other than the replace-
ment of the battery, the fuse, and visual inspection of the
meter.
2. Keep the meter clean and dry. DO NOT use solvent to clean,
use a damp (not wet) cloth and fully dry after cleaning.
3. The only replaceable parts are the 1.5 AA batteries,
0.315A/250V fuse (see page 10 for battery and fuse
replacement) and the Test Leads (for Test Leads call serv-
ice department).
11
E
WARNING
When replacing the battery or the fuse, remove only the
rear panel. Do not remove or disassemble the circuit
board or the front panel, these items are not serviceable
and if disassembled there is the possibility of loose metal
parts shorting the circuit board and causing an electrocu-
tion danger to the user.