OHAUS Adventurer Pro AV811 Series, Instruction Manual, Page: 31 / 120

EN-28 Adventurer Pro
4.3Troubleshooting
The following table lists common problems, possible causes and remedies. If the problem
persists, contact Ohaus or your authorized Ohaus dealer.
Symptom Possible Cause Remedy
Balance will not turn on • AC power not connected • Connect AC adapter
• Batteries discharged • Replace batteries
Battery indicator is flashing • Batteries are weak • Replace batteries
Balance does not display • Improper calibration • Perform calibration
accurately • Unstable environment • Move balance to a
suitable location
Cannot calibrate the balance • Calibration menu locked • Turn Calibration menu
lock off
• LFT set to on • Turn LFT off
Cannot change Menu settings • Submenu locked • Unlock submenu
• LFT set to on • Turn LFT off
Error code is displayed • Causes vary • Refer to the Error Code
table and take
appropriate action
4. MAINTENANCE
4.1 Calibration
Periodically verify calibration by placing an accurate weight on the balance and if calibration is
required, refer to section 3.7.1.
4.2 Cleaning
If cleaning is required, use a soft cloth dampened with water and a mild detergent. Do not allow
liquids to enter the balance. Do not use harsh chemicals to clean the balance, as the finish may
be damaged.
Error Code Meaning
Error 8.1 Weight reading exceeds Power On Zero limit.
Error 8.2 Weight reading below Power On Zero limit.
Error 8.3 Weight reading exceeds Zero overload limit.
Error 8.4 Weight reading below Zero overload limit.
Error 9 Internal fault. See section 4.5
Ref Wt Err Reference Weight too small. The weight on the pan is too small to
define a valid reference weight.
4.4 Error Code List