Oldham SV 4B - Page 18

18
Inject
reference gas
with content
> threshold
AL1
Cell sensitivity is satisfactory
Cell sensitivity is inadequate
Can AL 1 be
triggered by
adjusting the
alarm
potentiometer
(item 2, Fig. 8)?
Cell sensitivity is now satisfactory.
Cell sensitivity is inadequate:
replace the cell and repeat
calibration (O/S).
Alarm 1
triggered?
YES
YES
NO
YES
NO