GMI V!SA Manual De Instrucciones página 89

V!SA - Operating Instructions
FAULT ALARMS
'LOW BATTERY' Displayed intermittently when approximately 30 minutes
operating time remains. The audible alarm sounds, once every two seconds, and the
Red LED's flash.
Note: Both audible and visual gas alarms continue to operate after the low battery
warning message appears.
'BAT FAULT' Displayed constantly when approximately three minutes
operating time remains. The audible alarm sounds continuously and the Red LED's
illuminate constantly. After three minutes the instrument automatically switches off.
'CAL REQUIRED' This warning flag will be displayed during warm-up if the
instrument has detected a fault in the calibration memory during start-up and
is unable to continue without re-calibration. The audible alarm and the Red
LED's are also activated. Switch off immediately then follow appropriate action
required by your company for calibration.
'CAL EXPIRED' This warning flag will flash on the display every 30 seconds
if calibration expiry date has been exceeded. The audible alarm and Red
LED's are also activated, during start-up only.
'ZERO FAULT' and flashing symbol Appears after warm-up if the
instrument is switched on in the presence of gas or the instrument has been
unable to zero all sensors correctly. The audible alarm sounds, once every
two seconds, and the Red LED's flash, at start-up only. The instrument can
however still be used to detect and alarm on the other sensor(s) fitted.
1) If a spanner symbol appears above gas type, then the sensor requires
replacement or an electrical fault exists. Return instrument to an approved
Service / Repair facility.
2) If a flashing spanner symbol appears alternating with a zero reading, apply test
gas for two minutes to allow the display to return to zero then switch instrument Off
and On again. If fault remains, return instrument to an approved Service / Repair
facility.
3) If a flashing spanner symbol appears alternating with a gas value, leave instrument
on for 30 to 60 minutes then switch instrument Off and On again. If fault remains,
return instrument to an approved Service / Repair facility.
'FLOW FAULT' (Pumped Instruments) If the rotating pump symbol
changes to , an audible alarm and the Red LED's are activated, indicating a
sample fault or flow fail. Check sample line, sample filter or probe for blockage, if
applicable. Clear blockage then restart the pump by a press and hold of the green
(RH) button .
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