Heath Consultants GT Series - Manual (Page 52)

4-10
USER HANDBOOK
4.5.7 Pump
To switch the pump ON and OFF:
• Press the RH button
4.5.8 Zero
To zero the Flammable PPM range when displayed:
• Press and hold the RH button
Note: The pump must be switched ON to zero the
flammable ppm range.
4.5.9 Flow Fault
If flow fault is detected, the pump stops automatically.
The instrument should be checked for water ingress or
blockage and the pump reset.
To clear the flow fault:
(Once the blockage has been cleared):
• Press the RH button
4.5.10 Menu / Off
To re-select the Mode Menu:
• Press and hold both the LH button and the RH
button simultaneously.