GasWatch 3 for CO and O
2
Chapter 3: Measuring Mode • 17
6. The Battery Voltage Screen appears for a few seconds. An “AL-L” at the bottom of the
screen indicates that the alarms are set to latching. An “AL-A” at the bottom of the screen
indicates that the alarms are set to auto reset. See pg.84 for a description of how to change
this parameter.
7. The following screens display for 1 second each: Gas Name, Full Scale, Warning Setpoint,
Alarm Setpoint, Alarm H Setpoint, STEL Setpoint (CO only), and TWA Setpoint (CO
only).
8. If
ID DISP
is set to
ON
(factory setting is
OFF
, see pg.86), the User ID Screen appears
for a few seconds, followed by the Station ID Screen.
9. If the GasWatch 3 experiences a sensor failure during start up, a screen indicating that the
sensor failed appears and the buzzer sounds a double pulsing tone once per second.
You cannot acknowledge the failure and continue to Measuring Mode. Replace the failed
sensor as soon as possible.
AL-L
2.9
V
bAtt
O2
%
CO
ppm
F .S .
40.0
%
1000
ppm
WARNING
19.5
%
25
ppm
ALARM
18.0
%
50
ppm
ALARM H
23.5
%
1200
ppm
STEL
200
ppm
TWA
25
ppm
UID_001
Id
USER
SID_001
Id
StN
SENSOR
FAIL
%
FAIL
ppm
