Ludlum Measurements 25024424, Manual

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ETECTION
6.1 Instrument Faults
This instrument has several faults it can report to the user. A fault is signified by flashing in
order of the red, orange, and green LEDs in addition to a unique fault tone. The display will
also cycle through the active faults.
If a fault cannot be acknowledged, the display will flash the fault code. If a fault can be
acknowledged, the fault code will be solid.
OK button: Momentarily pressing the OK button will silence the tone and ac-
knowledge the currently displayed fault if applicable.
If the cause of a fault condition is removed, the instrument will automatically clear the fault
and continue normal operation.
6.1.1 Detector Loss of Counts
If the detector stops detecting radiation for a settable number of seconds, the instrument will
flash "LoC" or Loss of Counts. This indication is common if the unit is powered up without
a detector connected. If this indication is observed with a connected detector, remove the
unit from service and have it evaluated by a qualified repair and calibration technician.
Figure 6.1: Fault - Loss of Counts.
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