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Battery and Fuse Replacement / Maintenance
BATTERY AND FUSE REPLACEMENT
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
electrocution danger to the user.
1.
Turn the Digital Multimeter "OFF" and remove the test leads.
2.
Remove the two screws on the back of the meter and
separate 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
replacement 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 service
department).
WARNING
11
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Do you have a question about the 3320 and is the answer not in the manual?
Questions and answers
Trying to check alternator voltage
To check alternator voltage with the Innova 3320 digital multimeter:
1. Set the Selector Switch to the DC voltage (DCV) position.
2. Connect the black (COM) lead to a good ground point on the vehicle (e.g., engine block or vehicle frame).
3. Connect the red lead to the output terminal on the back of the alternator.
4. Start the engine and observe the voltage reading.
5. A healthy alternator typically shows around 13.8 to 14.5 volts.
6. If voltage is low (around 12.2 volts) or shows little increase from battery voltage, check for a bad ground connection or a faulty alternator.
This answer is automatically generated