1
Red lead in V/
Ω
/CAP/Hz/RPM/ms/Duty/
℃
/
℉
terminal
2.Black lead in COM terminal | Red lead in Clamp / 600mA terminal
3.Black lead in COM terminal | Red lead in 20A / mA terminal
Fuse Maintenance and Battery Replacement
WARNING:
Avoid electrical shock; remove test leads before opening the 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 four screws in the back of the case
and remove the case by lifting up and forward. Replace the battery with a 9V
alkaline battery.
2. To replace the fuse, firmly grasp the printed circuit board by the edges and lift
up and out of the case.
IMPORTANT:
To prevent contamination of the circuitry, your hands must be clean and the
printed circuit board must be held by its edges.
·
Replace the fuse with the same type of fuse.
◎
10A is a F10A, 250V high energy, fast acting fuse.
◎
mA is a F500mA, 250V high energy, fast acting fuse.
·
Mark sure the replacement fuse is centered in the fuse holder.
Carefully re-insert the PC board into the case. Re-assemble the case, then
fasten the four screws.
Troubleshooting
1.Meter will not turn ON.
·
Check the battery contacts for a tight fit.
·
Check for a minimum battery voltage of 8.0 Volts.
·
Make sure the battery wires are not pinched in the case.
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.
·
For frequencies below 1Hz, the display will show 00.00Hz.
