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9-5

SNIFFER MODEUSER HANDBOOK

9.5.7 Menu / Off

To re-select the Mode Menu:

• Press and hold both the LH button and 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.

9.6 SNIFFER TICKER (GEIGER) INDICATION

The Ticker (Geiger) range at start up is 0-1000 ppm.

For any subsequent PPM concentration, the Ticker (Geiger) audible

/ visual can be “zeroed” with the DOWN button , e.g. 600ppm

Ticker (Geiger) can be ‘backed off’ with the DOWN button , for

example, 600 ppm Ticker (Geiger) can be ‘backed off’ to enable

tracing to higher concentrations, in which case the Ticker (Geiger)

range becomes 600-1600 ppm etc, etc.

Note: The display range always remains as 0-10,000ppm.

The Ticker (Geiger) visual is such that the LED’s illuminate in pairs,

according to the table (Fig. 9.3), over any 1000 ppm range as

explained above.

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