Zero Fault - Only Applicable To Instruments With Co2 Sensor Fitted - GMI V!SA Manual De Instrucciones

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V!SA - USER HANDBOOK
Note: The flashing spanner symbol will only alternate with
the faulty sensor reading in the LEL range. If this occurs,
the instructions in section 3.4.4 'Sensor Fault', paragraphs
(2) and (3), should be followed .
3.4.3 Zero Fault - Only applicable to instruments
with CO2 sensor fitted
If a CO2 range spanner symbol
appears after warm-
up, as illustrated in Fig. 3.6, together with the audible
alarm sounding once every two seconds, and the Red
LED's flashing, the instrument has been switched on in
the presence of gas or the instrument has been unable to
zero the CO2 sensor correctly.
It is strongly recommended the instrument is returned to a
gas free area. Switch the instrument off and then switch
on again in clean air. If this is not possible / convenient,
the alarm can be acknowledged and the instrument can
still be used to detect CO2 gas.
Fig. 3.6 CO2 Sensor - Zero Fault
Press the green (RH) button
to acknowledge CO2
alarm and continue using instrument.
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