Heath Consultants Personal Surveyor (PS200 Series) - Manual (Page 54)

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, as detailed in the
optional ‘CONFIGURATION HANDBOOK’ CD-ROM
(Part No. 64193).
In the following examples, Fig. 4-1 illustrates a 4-gas
instrument signalling a ‘LO LO’ Oxygen alarm and Fig. 4.2
shows a 4-gas instrument signalling a ‘HI HI’ 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