Heath-consultants GT Series Manuel d'utilisateur télécharger pdf (Page 53)

4-11

LEAK TEST MODE

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.

4.6 LEAK TEST TICKER (GEIGER) FUNCTION

The Ticker (Geiger) function is available on flammable

ppm range. The Ticker (Geiger) range at start-up is

0-1000 PPM.

For any subsequent PPM concentration, the Ticker (Geiger)

audible / visual can be backed off using the UP

DOWN

buttons.

e.g. 600 PPM Ticker (Geiger) can be backed off to enable

tracing to higher concentrations, in which case the Ticker

(Geiger) range becomes 600 to 1600 PPM etc, etc.

Note: The display range remains always as 0 to 2000

PPM.

The Ticker (Geiger) visual is such that the lights illuminate

in pairs according to Fig. 4.9 over any 1000 PPM range as

explained above.

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Heath-consultants GT Series Manuel d'utilisateur Page 53