64
Annex E
LCD error messages
*** ERROR ***
* Gas Leak Detected *
Indicates the gas sniffing module
has detected a presence of gas (or
other substance). See detailed
instructions:
The gas sensors are very sensitive and any background 'smells' or
other equipment can raise the bottom end, the same goes for
environment and humidity.
The gas sniffers have a tolerance of adjustment to overcome
false alarms. It should be noted that you should only increase the
level at which the device alarms if you are confident that no
leaks within the instrument or vicinity are noted.
The adjacent instructions enable the adjustment the level of
'alarm':
If after completing the steps, the alarm continues to provide a
false result then the environment and aspects undertaken in
close proximity of the instrument should first be evaluated. IPA
used in relatively close proximity for example will trigger the
alarm, as is the same with other organic compounds.
If a false alarm continues then it is possible to disconnect the
module and prevent further alarms whilst a new module is
requested from BWB.
In order to disconnect the sensor please follow the instructions
for module replacement within the service manual, or available
upon request.
1. Turn on instrument power
2. Press 2 (maintenance)
3. Press 2 (show info)
4. Enter service code 1267988
5. Bottom line of LCD should display "Test Mode: Service"
6. Press back
7. Press 8 (Gas)
8. Change the setting, it is set at 0.5 from the factory and can
go up to 0.9. A small increase to 0.7 is first recommended
before setting the alarm to the maximum value.
9. Therefore press 7 (the 0. is set as standard)
10. Press accept
11. Press back
12. Turn on flame through the normal routine.
13. With the flame lit navigate to view the reading of the gas
sniffing module:
a. Press 4 (setup)
b. Press 4 (test hardware)
c. Press 2 (V&T)
d. The gas sensor feedback is displayed on the bottom line,
the setting for the alarm that we've just set to 0.7 is displayed
next to it in brackets. As long as the feedback stays under 0.7
then it won't trigger. Watch it for some time 5-10 minutes and
see where it settles.
14. If the above steps have failed to overcome the false alarm
the steps can be repeated to increase the level or alarm to the
maximum value of 0.9.
To Next Page
Loading...
