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Manual
GA-21Plus
5.6.2. Sensors
Select the option
SENSORS
from the screen
OPTIONS
as follows:
and
-
move the cursor to
SENSORS
-
select the option. The following screen appears
5.6.2.1. Sensor CO (only in dual CO sensor configuration)
In dual CO sensor configuration there is possibility to select working mode:
-
Auto
– This mode is designed to protect low range CO sensor. Measurement
results collected using low concentration CO sensor. When the meas-
ured gas concentration exceeds value inserted in
CO C
.
range
then
the purging pump starts flushing the low concentration CO sensor with
ambient air for its protection. Result are from this point collected using
high concentration CO sensor. When the gas concentration drops be-
low value inserted in
CO C
.
range
then the pugging pump stops and
the mesurements are again collected using low concentration CO
sensor.
-
Hi –
In this mode purging pump is always on and results are always collec-
ted using high concentration CO sensor.
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