GMI Personal Surveyor 200, User Handbook Manual

Page: 48 / 92

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 flash
for each gas type in alarm.
Fig. 4-1 ‘LOLO’ Alarm
Fig. 4-2 ‘HIHI’ Alarm