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Courier 7000
7. MAINTENANCE
7.1
Cleaning
For Courier 7000, the housing may be cleaned with a cloth dampened with a mild detergent if necessary.
CAUTION: DISCONNECT THE UNIT FROM THE POWER SUPPLY BEFORE 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.
7.2
Troubleshooting
SYMPTOM
EEP Error
Unable to turn on the scale.
Cannot zero the scale, or will
not zero when turned
on.
Unable to calibrate.
Cannot display weight in
desired weighing unit.
Cannot change menu settings.
Error 8.1
Error 8.2
Error 8.3
Error 8.4
Error 8.6
Error 9.5
Battery symbol flashing
CAL E
NOTE: Refer to 5.1 Settings, you can find the position of the LFT security switch.
7.3
Service Information
If the troubleshooting section does not resolve your problem, you can contact an authorized OHAUS Service
Agent. For Service assistance in the United States, call toll-free 1-800-526-0659 between 8:00 AM and 5:00
PM Eastern Standard Time. An OHAUS Product Service Specialist will be available to assist you. Outside the
USA, please visit our website www.ohaus.com to locate the OHAUS office nearest you.
Table 7-1 Troubleshooting
PROBABLE CAUSE (s)
EEPROM Checksum Error
1.
USB cable not plugged in or
properly connected with PC.
2.
Power cord not plugged in or
properly connected.
3.
Power outlet not supplying power.
4.
Batteries out of power.
5.
Other failure.
1.
Weights on the platform exceeds
allowable limits.
2.
Weight is not stable.
3.
Load cell is damaged.
LFT security switch is turned on.
Unit is disabled.
The Menu button has been locked.
Weight reading exceeds Power On Zero
limit.
Weight reading below Power On Zero
limit.
Weight reading exceeds Overload limit.
Weight reading below Underload limit.
Weight value exceeds 6 digits
Calibration data is missing.
Low battery
Calibration failure
REMEDY
Corrupted EEPROM data
1.
Check USB cable connections. Make
sure USB cable is plugged in properly.
2.
Check power cord connections. Make
sure power cord is plugged in properly
into the power outlet.
3.
Check power source.
4.
Change batteries.
5.
Service required.
1.
Remove weights on the platform.
2.
Wait for weight to become stable
check area around the scale and weight
on scale for excessive vibration or
movement, or increase filtering.
3.
Service required.
Turn the LFT security switch off.
Enable unit in the Units Menu.
Refer to 4.5 Unit Menu for help.
1.
Hold Menu key for up to 30 seconds to
access menu. Can be permanently
unlocked using Lock menu.
2.
The LFT security switch may need to be
switched off.
1.
Remove weight from the platform.
2.
Recalibrate the scale.
1.
Add weight to the platform.
2.
Recalibrate the scale (The Span
Calibration and Linearity Calibration
require calibration masses).
Reduce load on the scale.
1.
Add weight to the platform.
2.
Recalibrate the scale.
Reduce load on scale.
Calibrate the scale.
Replace batteries.
Use correct calibration weight.
EN-43
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