Omega HHM290 - MAINTENANCE; Battery Replacement; Fuse Replacement

3
MAINTENANCE
WARNING
Remove test leads before changing battery or fuse
or performing any servicing.
Battery Replacement
Power is supplied by 6 pcs 1.5V (AA size) battery (UM-3 R6).
The " " appears on the LCD display when replacement is needed.
To replace the battery, remove the two screws from the back of the
meter and lift off the battery case. Remove the battery from battery
contacts.
Fuse Replacement
If no current measurements are possible, check for a blown
overload protection fuse. There are two fuses; F1 for the "mA" jack
and F2 for the "10A" jack. For access to fuses, remove the two
screws from the back of the meter and lift off the battery case.
Replace F1 only with the original type 10A/600V, fast acting fuse.
Replace F2 only with the original type 0.5A/250V, fast acting
ceramic fuse.
Cleaning
Periodically wipe the case with a damp cloth and detergent, do
not use abrasives or solvents. Clean the front lens by blowing off
loose particles or using a damp, soft, clean cloth.
14
Infrared Measurement
Terminal Socket
for Inductance &
Capacitance
Measurement
Laser Aperture
Laser Switch
Laser Warning
& Certification
Label
Function Switch
Terminal Jacks
DC Adapter
Input
Analog Bar Graph
Custom Made
Backlit LCD
Dual Thermocouple
Input (K type T/C)
TrueRMS SUPERMETER
TM
®
Fuse, 10A / 600V
Batteries
AA Size (6)
Fuse, 0.5A / 250V
Back View Of Supermeter
Battery Door Open