OHAUS Courier 7000, Instruction Manual

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Courier 7000 EN-43
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
Table 7-1 Troubleshooting
SYMPTOM PROBABLE CAUSE (s) REMEDY
EEP Error EEPROM Checksum Error Corrupted EEPROM data
Unable to turn on the scale. 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. 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.
Cannot zero the scale, or will
not zero when turned
on.
1. Weights on the platform exceeds
allowable limits.
2. Weight is not stable.
3. Load cell is damaged.
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.
Unable to calibrate. LFT security switch is turned on. Turn the LFT security switch off.
Cannot display weight in
desired weighing unit.
Unit is disabled. Enable unit in the Units Menu.
Refer to 4.5 Unit Menu for help.
Cannot change menu settings. The Menu button has been locked. 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.
Error 8.1
Weight reading exceeds Power On Zero
limit.
1. Remove weight from the platform.
2. Recalibrate the scale.
Error 8.2
Weight reading below Power On Zero
limit.
1. Add weight to the platform.
2. Recalibrate the scale (The Span
Calibration and Linearity Calibration
require calibration masses).
Error 8.3
Weight reading exceeds Overload limit. Reduce load on the scale.
Error 8.4
Weight reading below Underload limit.
1. Add weight to the platform.
2. Recalibrate the scale.
Error 8.6
Weight value exceeds 6 digits Reduce load on scale.
Error 9.5
Calibration data is missing. Calibrate the scale.
Battery symbol flashing Low battery Replace batteries.
CAL E
Calibration failure Use correct calibration weight.
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.