MSA ALTAIR O2 - Operation; Setting the Alarm Setpoints Before Commissioning

GB
OPERATION MSA
12 ALTAIR Operating Manual
3. Operation
3.1. Setting the alarm setpoints before commissioning
(1) Press [TEST] key once.
 TEST is displayed;
 After about 1 s, all display indicators are activated;
 Acoustic alarm sounds, alarm LEDs light up and vibration alarm is
triggered;
 The software version is displayed for approx. 3 s;
 The gas type is displayed for approx. 3 s more (O
2
, H
2
S or CO).
 LO and ALARM as well as HI and ALARM are displayed alternately for
approx. 3 s.
(2) To set the prealarm (LO), press the [TEST] key when "
LO" and "ALARM"
displays.
 "
LO", "ALARM", "SET" and "?" are displayed.
(3) By pressing the [TEST] key, increase the value for the pre-alarm, until the
desired value is reached.
 On obtaining the maximum value, the display jumps and begins to count
upwards again with minimum value.
(4) Release [TEST] key and wait for 3 s.
(5) To set the main alarm (HI), press the [TEST] key when "HI" and "ALARM"
displays.
 "
HI", "ALARM", "SET" and "?" are displayed.
(6) By pressing the [TEST] key, increase the value for the pre-alarm, until the
desired value is reached.
 On obtaining the maximum value, the display jumps back and begins to
count upwards again from the minimum value.
(7) Release [TEST] key and wait 3 s.
 Instrument shuts off.