Ohaus DEFENDER 3000 METAL WEIGHING INDICATOR Manual en - Manual (Page 41)

EN-39 3000 Series Indicators
7 MAINTENANCE
CAUTION: DISCONNECT THE UNIT FROM THE POWER SUPPLY BEFORE CLEANING.
7.1 Indicator Cleaning
• The housing may be cleaned with a cloth dampened with a mild detergent if necessary.
• Do not use solvents, chemicals, alcohol, ammonia or abrasives to clean the housing or control panel.
7.2 Troubleshooting
SYMPTOM PROBABLE CAUSE(s) REMEDY
Unit will not turn on. Power cord not plugged in or properly
connected.
Power outlet not supplying electricity.
Other failure.
Check power cord connections. Make sure
power cord is plugged in properly into the
power outlet.
Check power source.
Service required.
Cannot zero the Scale, or will not zero when
turned on. Load on Scale exceeds allowable limits.
Load on Scale is not stable.
Load Cell damage.
Remove load on Scale.
Wait for load to become stable.
Service required.
Unable to calibrate. Lock Calibration Menu set to On.
Lock switch is “on”.
LFT menu set to On.
Incorrect value for calibration mass.
Set Lock Calibration Menu to Off.
Refer to Section 3.9 Menu Lock.
Set the Lock switch to Off.
Set LFT menu to Off.
Use correct calibration mass.
Cannot display weight in desired weighing
unit. Unit not set to On. Enable unit in the Units Menu.
Refer to Section 3.7 in the Unit Menu.
Cannot change menu settings. Menu has been locked.
Lock switch set on.
Set selected menu to Off in the Lock Menu.
Lock Switch on the circuit board may
need to be set to the Off position.
Set the Lock switch to off.
Err 5.0 Display value>999999 (parts counting
mode) Reduce number of parts
Err 7.0 Unstable weight reading when defining
reference weight. Unstable Error, check platform location.
TABLE 7-1. TROUBLESHOOTING.