Navigator
TM
EN-9
5. MAINTENANCE
5.1 Cleaning
WARNING: Electric Shock Hazard. Disconnect the equipment from the
power supply before cleaning.
Make sure that no liquid enters the interior of the instrument.
Attention: Do not use solvents, harsh chemicals, ammonia or abrasive
cleaning agents.
The exterior surfaces of the instrument may be cleaned with a cloth dampened with water and a mild
detergent.
5.2 Troubleshooting
The following table lists common problems and possible causes and remedies.
If the problem persists, contact OHAUS or your authorized dealer.
Symptom
Possible Cause
Remedy
Cannot turn on
No power to balance
Verify connections and voltage
Poor accuracy
Improper calibration
Unstable environment
Perform calibration
Move balance to suitable location
Cannot calibrate
Unstable environment
Incorrect calibration weight
Move the balance to suitable location
Use correct calibration weight
Cannot access mode Mode not enabled
Enter menu and enable mode
Cannot access unit
Unit not enabled
Enter menu and enable unit
Lo ref
Reference weight is too low
Increase reference weight.
ref err
Parts counting– sample weight <1d. Shows error - exits mode or goes to [
Clr.ApU
].
Err 3.0
Incorrect calibration weight
See section 2.5 for correct weights
Err 4.4
RS232 buffer is full
Set Handshake on, see Interface User Manual.
Err 8.1
Power on zero range exceeded
Clear pan, check Shipping Lock setting
Err 8.2
Power on zero under range
Install pan, check Shipping Lock setting
Err 8.3
Overload (>cap+9e)
Load exceeds balance maximum capacity
Err 8.4
Under load
Reading below min. range - Re-install pan.
Err 8.6
Displayed value >999999
Result exceeds display capability.
Err 9
Internal data error.
Contact an authorized service agent
Err 13
Fail to write EEPROM.
Contact an authorized service agent
Err 53
Invalid checksum data
Contact an authorized service agent
5.3 Service Information
If the troubleshooting section does not resolve or describe your problem, contact your authorized
OHAUS service agent. For service assistance or technical support in the United States call toll-free 1-
800-526-0659 between 8:00 AM and 5:00 PM EST. An OHAUS product service specialist will be
available to provide assistance. Outside the USA, please visit our web site, www.ohaus.com to locate
the OHAUS office nearest you.