OHAUS Ranger Counting Scale, Руководство по эксплуатации

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Section 6 - Care and maintenance
6.1 Troubleshooting
To keep the scale operating properly, the housing should be kept clean and free from foreign material. If neces-
sary, a cloth dampened with a mild detergent may be used.
SYMPTOM
Unit will not turn on.
Cannot zero scale, or will not zero
when turned on.
Center of Zero display erratic or does
not appear with no load on plat-
form.
Cannot display weight in desired
weighing unit.
RS232 not working.
Unable to calibrate unit.
REMEDY
Check power cord connections.
Check battery, charge battery.
Check functions of membrane
switch.
Remove load on scale to less than
entered zero.
Remove disturbances or reduce
motion.
Increase AZT level in readout menu.
Increase averaging level in readout
menu.
Enable desired unit in Setup menu.
Conversion to large (typically in g).
Verify communication parameters.
Check cable connections.
Use correct calibration mass.
Unlock the switch and recalibrate
the scale.
PROBABLE CAUSE(S)
Not plugged in or properly connected.
Battery operation -battery dead or not
fully charged.
Membrane switch failure.
Load on scale exceeds allowable
zero.
Scale platform motion or disturbances
exceed center of zero criteria.
Desired unit not set to ON in Setup
menu.
RS232 communication parameters set
up incorrectly.
Improper or loose cable connections.
Incorrect value for calibration mass.
Lockout menu CAL set to ON and
unlock switch is on the circuit board.