ANALOX CO Clear, User Manual

Page: 21 / 24

CO Clear
User Manual
Int. Approved
Document ref: ACO-810-28 October 2018 Page 21 of 24
Copyright © 2006 Analox Ltd. All Rights Reserved.
Commercial in Confidence
11 Fault conditions
During normal operation, the instrument carries out a continuous self-test procedure. If
operation is satisfactory, the ‘OK’ status indicator will be on, blinking off momentarily
every few seconds.
1) If there are no indicator lamps lit on the Analox CO Clear , check that power is
connected and that the fuses are OK.
2) If the 'OK' indicator is off, and the alarm indications are believed to be
incorrect, carry out a calibration as described in section 5. If this fails to
correct the problem, contact your qualified service engineer.
A summary of the indicator lamps and buzzer operations is shown below.
OK LAMP
(GREEN)
ALARM1 LAMP
(RED)
ALARM2 LAMP
(RED)
FAULT LAMP
(YELLOW)
MEANING
OFF OFF OFF OFF
Power Off
ON/ BLIP OFF OFF OFF OFF Normal Operation
OFF
FLASHING AND
SLOW BUZZER
OFF OFF
CO Level is
> 3.0ppm *
OFF FLASHING
FLASHING AND
MED. BUZZER
OFF
CO Level is
> 5.0ppm *
OFF OFF OFF
FLASHING AND
SLOW BUZZER
Calibration Error
at Switch On**
OFF FLASHING OFF
FLASHING AND
FAST BUZZER
CO Cell Fault
Output too High
OFF FLASHING FLASHING
FLASHING AND
FAST BUZZER
System Fault ***
*
Note that Alarm levels may be set at different values, depending on customer
requirement
** A Calibration error or a Cell fault requires the attention of a Service Engineer. A
recalibration procedure may overcome the problem.
*** Only when Alarm 1 and Alarm 2 are enabled