Care and maintenance, Troubleshooting – Ohaus JR Series Electronic Balances User Manual

Page 26

CARE AND MAINTENANCE

To keep the balance operating properly, the housing and pan should be kept clean and
free from foreign material. If necessary, a cloth dampened with a mild detergent may
be used. Keep calibration weights in a safe dry place.

TROUBLESHOOTING

PROBABLE CAUSE(S)

Power adapter not
plugged in or properly
connected to balance.

Balance was not re-
zeroed before weighing.

Balance not properly
calibrated.

END not being used to
exit menus.

Print menu settings not
properly set up.

Cable connections.

Microprocessor lock up.

Lock set ON.

Vibration on table
surface.

SYMPTOM

Unit will not turn on.

Incorrect weight reading.

Unable to store menu
settings/changes.

RS232 interface not
working (when installed)

Random segments
displayed or display
locks up.

Unable to change
settings.

Unstable readings.

Error message display.

REMEDY

Check power adapter
connections.

Press ON TARE with no
weight on the pan, then
weigh item.

Recalibrate correctly.

You MUST use END to
exit menus and save
settings.

Verify interface settings in
Print menu correspond to
those of peripheral device.

Check cable connections.

Unplug the power cord,
then replug again. If
condition persists, unit
must be serviced.

Set Lock switch to OFF.

Place balance on a stable
surface or change
averaging level.

See Error Codes Table.