Heath Consultants GT Series - Manual (Page 89)

8-5
PURGE MODE
8.5.4 Menu / Off
To re-select the Mode Menu:
• Press and hold both the LH button and the RH
button .
When the menu appears on the screen, release
the buttons, otherwise the instrument will proceed
into the switch OFF process and will switch OFF
after a further three (3) seconds.
8.5.5 Range
The range button allows the selection of the % Gas only
display or the % Gas plus % O
2
display.
8.5.6 Flow Fault
If flow fault is detected, the pump stops automatically.
The instrument should be checked for water ingress or
blockage.
To clear the flow fault:
(Once the blockage has been cleared)
• Press the RH button .
8.6 PURGE ALARMS
There are no alarms in this mode.