Troubleshooting; Cleaning; Replaceable Parts/Accessories - HP 971A User Manual

Maintenance

Troubleshooting

Problem
Unit won't turn on
Unit won't turn off
Display flashes
and
Rapid beeps
Battery Annunciator on
Unable to measure
current
10 A or mA - A

Cleaning

Wipe instrument with a soft rag dampened with soap and water. Do not immerse in water.
Do not use any chemical cleaner or solvents.

Replaceable Parts/Accessories

Refer to the table on page 6-4.
1-16
Possible Cause
Dead Batteries
Input limit exceeded
Input limit exceeded
Test leads in wrong
terminal for measurement
function
Low battery voltage
Open input protection fuse
Suggested Action
Replace batteries
Remove test leads and press any key to reset.
Remove test leads and press any key to reset.
Change test leads or function switch position
Replace batteries
Check fuse. Connect test lead between V input
terminal and 10A or 10 mA
10A or 10mA range, unit will rapidly beep if
fuse is OK. Replace fuse if no beep.
A terminal. Select