Heath Consultants Personal Surveyor (PS200 Series) - Manual (Page 57)

4-7
ALARMS
A timer, counting down from 10 seconds to zero, is displayed
together with the message ‘GET OUT’ alternating with ‘HIGH
GAS’, as shown in Fig. 4-4:
. . . alternating until zero is reached
Fig. 4-4 ‘High Gas’ / ‘Get Out’ Timer
The instrument must be returned to a gas free area or sample
clean air. The instrument must now be switched OFF.
Note: To avoid accidental switch-off in this dangerous state,
the off cycle is increased to 10 seconds.
4.5 FAULT ALARMS
Refer to Alarms Table, in paragraph 4.1 of this handbook, to
identify the audible / visual indication for any of the following
faults.
4.5.1 Low Battery
The ‘LOW BATTERY’ warning flashes when
approximately 30 minutes operating time remains.
The display will be red, the audible alarm sounds once every
two seconds and the red LED’s flash.