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Maintenance
Fuse and Battery Replacement
WARNING:
Avoid electrical shock: remove test leads before opening
case.
Do not operate the meter or rotate the meter switch when
the case is open.
1. To replace a battery or fuse, loosen the three screws in the case
back and remove the case by lifting up and forward .
2. Replace the battery with an 9 Volt alkaline battery.
Important:
To prevent contamination of the circuits, your hands must
be clean and the printed circuit board must be held by the
edges.
Replace the fuses with the same type of fuse.
10 A is a F 10 A ,250V high energy, fast acting fuse.
Make sure the replacement fuse is centered in the fuse
holder.
3.Re-assemble the case. Fasten the three screws.
Trouble Shooting
1. Meter wilI not turn ON.
Check the battery contacts for a tight fit.
Check for a minimum battery voltage of 8.0 volts.
2. Ampere reading is erratic or there is no reading at all.
Disassemble the meter back cover and test the fuses for
continuity.
3. Meter reading is erratic.
Printed circuit board contaminated from handling with hands.
Low battery.
Open circuit in a test lead (frayed or broken wire).
Wrong range selected.
“Blown” fuse.
General Specifications
GENERAL SPECIFICATIONS
Display :
3 1/2digit(1999 counts)liquid crystal display(LCD)
Polarity : Automatic,(-)negative polarity indication.
Overrange lndication :“
1” mark indication.
Low Battery lndication:
The is displayed when the battery
voltage drops below the operating
level.
Measurement Rate :
2 times per second ,nominal.
Operating Environment :
0℃to 50℃ (320
0
F to 122
0
F)
