OHAUS T21P Manuel D'instructions page 17

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T21P Indicator
7. MAINTENANCE
Caution: before cleaning, turn off the scale, and disconnect the AC adapter.
7.1 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.
7.2 Troubleshooting
The following table lists common problems and possible causes and remedies. If
the problem persists, contact Ohaus or your authorized dealer.
Symptom
Scale will not turn on No power to scale •
Poor accuracy
Unable to calibrate
Battery fails to charge
fully
Zero-E
Display =
000000
Display =
999999
or
; or no
weight reading
No display or AC LED
is off
"Low Bat" LED is lit
Cou-no
Display =
L0_rEF
Display =
--0ver
n-0ver
Calle 23B No. 81A - 62 Modelia PBX: (571) 410 28 48 Fax: (571) 263 72 24 Bogota, D.C. - Colombia.
www.tecnipesaje.com
TABLE 7-1. TROUBLESHOOTING.
Possible Cause(s)
Battery power used up
Improper calibration •
Unstable environment
Unstable environment •
Incorrect calibration mass
Battery is defective
Pan has excessive load during
power on •
No span calibration
Load cell connector is
disconnected •
No calibration data in EEPROM
Power cable or battery is defective Check power cable • Replace battery
Battery is weak
No sample quantity to be set
APW is less than 0.25d
Total weight is greater than Full
Scale + 9d
Accumulation records are greater
than 999
tecnipesaje@tecnipesaje.com
Remedy
Verify connections and voltage •
Connect power and charge the
battery
Perform calibration •
Move scale to suitable location
Move the scale to suitable location •
Use correct calibration mass
Have battery replaced by authorized
service dealer
Remove weight from pan and re-zero
• Perform Span Calibration
Connect the load cell connector •
Calibrate the indicator.
Connect power cable to AC •
Charge the battery.
Set sample quantity.
Use APW > 0.25d
Reduce the load on the pan
Clear Accumulation data
tecnipesaje@outlook.com
EN-15

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