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4-4

USER HANDBOOK

Note: The toxic gas alarm levels – instantaneous, STEL

and LTEL are set at the time of instrument manufacture.

It is important that the user ensures that the levels are in

accordance with their company’s alarm levels and with health

and safety legislation. The alarm levels may be changed, if

required, via the instrument set up menu.

In the following examples, Fig. 4-1 illustrates a 4-gas

instrument signalling a ‘LOLO’ Oxygen alarm and Fig. 4.2

shows a 4-gas instrument signalling a ‘HIHI’ LEL alarm. If more

than one gas alarm level is exceeded, the gas value will ash

for each gas type in alarm.

Fig. 4-1 ‘LOLO’ Alarm

Fig. 4-2 ‘HIHI’ Alarm

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GMI PS241 Specifications

General