Ohaus NBF1A2 Navigator Balances - Manual (Page 41)

41
PROBABLE CAUSE(S)
Power cord not plugged in or properly
connected to balance.
Balance was not re-zeroed before
weighing.
Balance not properly calibrated.
Desired unit not enabled.
Enter was not used.
Menu locked.
Print menu settings not set properly.
Cable connections.
Cable configuration (Not Ohaus).
RS232 Power submenu set to Off
(battery operation only).
Microprocessor locks up.
Menu locked
(Lock Switch set ON).
Excessive air currents.
Vibration on table surface.
Desired weighing mode is not enabled.
5 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 masses in a safe dry place.
5.1 Troubleshooting
SYMPTOM
Unit will not turn on.
Incorrect weight reading.
Cannot display weight in desired
unit.
Unable to store menu settings/
changes.
RS232 interface not working.
Random segments displayed or
display locks up.
Unable to change settings.
Unstable readings.
Error message display.
Cannot access weighing mode.
REMEDY
Check power cord connections.
Press with no weight on
the pan, then weigh item.
Recalibrate correctly.
Press Units button until desired
measuring unit is shown.
Enable units in Setup menu.
Press Enter when prompted.
Unlock Menu.
Verify interface settings in RS232
menu correspond to those of
peripheral device.
Check cable connections.
Check all pin connections.
Set Power under RS232 menu to
ON (battery operation only).
Reset balance by holding the ON/
OFF button for at least 5 seconds
before releasing. If condition
persists, unit must be serviced.
Set Lock Switch to OFF.
Set menu Lock OFF.
Check environmental conditions.
Place balance on a stable surface
or change filter setting.
See Error Codes list.
Press mode until desired weighing
mode is displayed.
Enable weighing mode in Setup
Menu.