Model 3440 Appendix A–5
The front panel assembly may be defective. To test, replace
the suspect front panel assembly with a good front panel
assembly.
Short Battery Life after Recharging
Check that you are using the correct charger.
Ensure the charging indicator light (red LED) is illuminated
when the gauge is plugged in.
NiMH batteries may be charged up to 500 full charge-
discharge cycles. The batteries may be reaching end of life
cycle - replace.
CAUTION
All information stored in the gauge except the
calibration constants and the chosen language is lost
when the batteries are disconnected.
Remove any loose screws or foreign objects from the gauge
interior that may cause an electrical short to ground.
The AC charger may be defective. Check voltage output of
charge with a voltmeter, or use the dc charger to charge the
batteries.
Satisfactory Counts, but Results are in Error
i Ensure that the handle is seated in bottom of notch.
i Ensure the measurement depth on the display screen
corresponds to the actual source rod handle depth.
i Check to see if an offset (density, moisture, trench or
special) is enabled.
i Ensure that the standard counts are correct.
i Check calibration constants.
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