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FirstCheck+ 1, 2, 3 & 5000
Diagnostics
Sensor
Gas Selection
Health & Safety
Memory Alarm
Ion Scie nce Lt d
1. Detector cell fuse failure
If the error persists return the instrument to the manufacturer.
2. Contaminated detector cell
If the FirstCheck+ is used without its filter or filters are not replaced on a
regular basis, particles of dust or dirt can cause a range of effects.
Remove the detector lamp as shown on page xx and use low pressure oil -
free compressed air to blow out the contamination via the small pipe.
Replace cleaned lamp and try again. If the error persists return the
instrument to the manufacturer.
The gas being selected is not compatible with the selected lamp. The lamp
being selected is not compatible with the selected gas. Press ESC and
select a compatible gas and lamp.
When in Health & Safety mode the selected gas has no STEL or TWA alarm
values. This provides a warni ng i n Health & Safety mode that the change
you are making could effect the ongoing calculations. You can proceed with
the adjustment by pressing enter or return to the display screens by
pressing ESC.
The data loggi ng memory is full and will begi n to over write previous
readings. Will only show if the data logging memory alarm has been set to
ON (see pg 30). Press ESC and either continue, and previous readings will
be over written or down load saved data to a PC before continuing.
Page 40 of 53
Ion Science L td
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