16
AirAware
Back To Normal Operation
Immediately upon selecting Normal Mode, the display reads "NORM" for 5
seconds before exiting the Set-up mode. During this 5-second period, the user
can continue to scroll forward or backward into other modes before the normal
mode starts. After this point, both the
and
keys must be pressed to re-
enter the Set-up mode.
Alarms
Once the concentration of gas exceeds the preset alarm level, the AirAware
will alarm. In all versions the visual alarm indicators will activate and the
LED will flash once per second. For units with on-board audible alarm
option,* pressing
while the unit is in alarm will silence the on-board alarm
buzzer.
All alarms are non-latching; when the level of gas drops below the alarm
point, all alarms automatically switch off.
* Indication of purchase option.
Although field programmable the factory alarm set points are as follows:
Gas
Low Alarm
High Alarm
CO
35 ppm
70 ppm
Cl2
0.5 ppm
1.0 ppm
H2S
10 ppm
20 ppm
HCl
5 ppm
10 ppm
NO
25 ppm
50 ppm
NO2
1 ppm
2 ppm
NH3
25 ppm
50 ppm
O2
19.5 % vol.
23.5% vol.
SO2
2 ppm
4 ppm
Frequent bump testing along with good record keeping will ensure optimum
performance of the AirAware.
