Defender 3000 Indicators Service Manual
EN-25
3.3 Troubleshooting
TABLE 3-1 TROUBLESHOOTING
SYMPTOM
PROBABLE CAUSE (s)
REMEDY
EEP Error
EEPROM Checksum Error
Corrupted EEPROM data
Unable to turn on the
indicator.
1.
Power cord not plugged in or
properly connected.
2.
Power outlet not supplying electricity.
3.
Battery discharged.
4.
Other failure.
1.
Check power cord connections.
Make sure power cord is plugged in
properly into the power outlet.
2.
Check power source.
3.
Recharge battery.
4.
Service required.
Cannot zero the scale,
or will not zero when
turned on the indicator.
1.
Weights on the pan exceeds
allowable limits.
2.
Weight is not stable.
3.
Load cell is damaged.
1.
Remove weights on the pan.
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.
1.
LFT security switch is turned on.
2.
Incorrect value for calibration mass.
1.
Turn the LFT security switch off.
2.
Use correct calibration mass.
Cannot display weight
in desired weighing
unit.
Unit is disabled.
Enable unit in the Units Menu.
Refer to Unit Menu section for help.
Cannot change menu
settings.
The Menu button has been locked.
1.
Enable the Menu button in the
L.O.C.k
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 pan.
2.
Recalibrate the scale.
Error 8.2
Weight reading below Power On Zero
limit.
1.
Add weight to the pan.
2.
Recalibrate the scale.
Error 8.3
Weight reading exceeds Overload limit.
Reduce weight on the pan.
Error 8.4
Weight reading below Underload limit.
1.
Add weight to the pan.
2.
Recalibrate the scale.
Error 8.8
Factory calibration data in the
EasyConnect
TM
module on load cell cable
is not valid under LFT off status.
Calibrate the scale.
Error 8.9
Fail to read serial number from the
EasyConnect
TM
module or the serial
number does not match the LFT ON
status.
1.
Break the seal or replace the
original base/indicator.
2.
Service required.
Error 9.5
Calibration data not presented.
Calibrate the scale.
Battery symbol
flashing
Low battery
Replace dry batteries for i-DT33P model
or recharge battery for i-DT33XW
model.
CAL E
Calibration value outside allowable limits
Use correct calibration weight.
REF Err
The average piece of weight (APW) on
the pan is too small and less than 0.1d
Replace a heavier batch of samples or
change to a scale with readability
suitable for your samples.
Note
: Please refer to the
LEGAL FOR TRADE
chapter,
Settings
section for the positon of the LFT security
switch for each model.
