GMI GT series User Manual

4-5
LEAK TEST MODEUSER HANDBOOK
4.4 LEAK TEST BUTTON OPERATION
A summary of the button operation is detailed in Table 4.1:
ACTION
PRESS
PRESS
and
HOLD
LH
(INVERT)
FLAM PPM
ZERO
BACKLIGHT /
FLASHLIGHT
ACKNOWLEDGE
ALARM
MAX / LIVE
RANGE
FLAM
FLAM + CO
INVERT
DISPLAY
RH
(PUMP)
CENTRE
(RANGE)
PUMP
ON / OFF
CLEAR FLOW
FAULT
Table. 4.1 Button Operation in Leak Test Mode
4.5 DESCRIPTION OF LEAK TEST BUTTON
OPERATION
4.5.1 Ticker (Geiger) ON / OFF
To enable and disable the audible Ticker (Geiger):
(in the PPM range)
• Press and hold the UP and DOWN buttons
simultaneously, as follows:
1. First press and hold - to enable visual only.
2. Second press and hold - to disable both audible and visual.
3. Third press and hold - to enable both audible and visual.
When PPM autoranges to LEL, the Ticker (Geiger) audible/visual
continues until an LEL alarm is reached. The Ticker (Geiger) is then
switched off and the LEL alarm will be activated. If no LEL alarm is
set, the Ticker (Geiger) will remain activated.

GMI GT series Specifications

General

Brand	GMI
Model	GT series
Category	Measuring Instruments
Language	English