Heath Consultants Gasurveyor 500 Series - Manual (Page 62)

C-4
GAS MEASUREMENT INSTRUMENTS LTD.
OPERATION
Switch ON (Mode 1)
LEL autoranging to Volume Gas
Press and Hold Button One to switch instrument and pump On. This
initiates the instrument’s warm-up cycle:
followed by Instrument Type and
Software version,
then Battery status, as shown:
Switch ON (Mode 2)
0 to 100% Volume Gas for Purge
applications.
Press and Hold Button Two to
switch instrument and pump On.
This initiates the instrument’s warm-
up cycle:
All LCD segments are displayed
BUTTON 1
BUTTON 2
GASURVEYOR 3-500
ON OFF
PUMP
ON OFF
INST.
ALARM ACK.
PURGE