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10.3 Fault diagnosis
The most common problems are shown below:
10.4 Case removal and refitting
1. Ensure the mains lead is disconnected from the supply.
2. Remove the four crosshead screws from the bottom of the case.
3. Slide the case off the body of the gauge.
4. Refitting is the reverse of removal.
Symptom
Possible cause
Action required
LCD display blank
NiCad battery flat
either recharge instrument or
operate using mains adapter
faulty charger
if possible check output of
charger using a voltmeter
internal fault
contact Elcometer or your local
supplier
erratic,rapidly
fluctuating readings
blown lamp
replace lamp (see section 10.5)
reads low or zero
set cal function not
operated
follow instructions for calibration
reset (see section 6.3)
dirt/dust on optics
clean with compressed air or
soft cloth
Op_402 TMA-0244 Issue 02.fm Page 27 Friday, February 9, 2007 12:01 PM
