MSA altair 4 - Page 32

OPERATION MSA
32
ALTAIR 4 - Operating Manual
3.4.3 Alarm Setup
The user can switch all alarms ON or OFF and change the alarm set points
for each sensor.
For more information see the flow charts in Section 7.8.
See section 5.2 for alarm adjustment limits. The value of the High Alarm
can only be set to a value that is higher than the Low Alarm set point.
COMB/EX
O2
H2S
CO
Figure 3-4 Alarm Setup
(1) To bypass this setup, press the
[
]
or
[ ]
button; otherwise, continue
as follows.
(2) Press the
[
]
button to enter the submenu.
(3) Set alarms ON or OFF by pressing the
[ ]
button or the
[ ]
button.
Confirm with the
[
]
button.
• LOW ALARM settings for the first sensor display
(4) Press the
[
]
button or the
[ ]
button to change the value.
(5) Press the
[
]
button to store the value.
• HIGH ALARM settings for the first sensor display.
(6) Press the
[
]
button or the
[ ]
button to change the value.
(7) Press the
[
]
button to store the value.
• STEL ALARM settings (for toxic sensors only) display.
(8) Press the
[
]
button or the
[ ]
button to change the value.
(9) Press the
[
]
button to store the value.
• TWA ALARM settings (for toxic sensor only) for display.
(10) Press the
[
]
button or the
[ ]
button to change the value.
(11) Press the
[
]
button to store the value.
(12) Repeat the procedure for all other sensors.
(13) After setting the last sensor, continue to Time and Date setup.