Maintenance - Amprobe AM555 User Manual

MAINTENANCE AND REPAIR
If the meter fails to operate, check battery, test leads, all other accessories, and
replace as necessary.
Double check the following:
1. Replace the fuse or battery if the meter does not work.
2. Review the operating instructions for possible mistakes in operating
procedure.
Quick check on 0.5A FUSE:
Step 1: Turn the rotary switch to mA
Step 2: Use a multimeter with continuity function to verify the fuse
continuity for the fuse of mA/μA terminal. Connect the test leads to mA/μA
terminal and COM terminal.
Continuity buzzer activates: the fuse is OK
Continuity buzzer is not activated: the fuse is burnt. Replace the fuse as specified.
F1 0.5A H 1000V fast-fuse, ( 6.3×32)mm
Quick check on 10A FUSE:
Step 1: Turn the rotary switch to A
Step 2: Use a multimeter with continuity function to verify the fuse
continuity for the fuse of 10A terminal. Connect the test leads to 10A
terminal and COM terminal.
Continuity buzzer activates: the fuse is OK
Continuity buzzer is not activated: the fuse is burnt. Replace the fuse as specified.
F2 11A H 1000V fast-fuse, ( 10×38)mm
position.
position.
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