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24
CTX 300
User manual
2
nd
case: CTX 300 without display (except for O
2
et SC)
■
The sensor is operating.
■
Verify that the sensor is located in a
clean-air
environment.
Use
the
calibration
kit
and
follow
all
recommendations.
■
Connect a voltmeter to the AF+ and
AF- terminals (caliber mV/DC).
Figure 18
■
Wait for the signal to stabilize and
adjust the
zero
by using the ZERO
potentiometer located on the sensor
pack (Figure 19, ref. 2). The output
signal should be 0 mV.
■
Now inject the recommended test gas
at a flow rate of 30 l/h. Use the
calibration
kit
and
follow
all
recommendations.
■
Wait until the signal has stabilized.
Figure 19
■
Read the mV value on the voltmeter
(Figure 18), with the full scale at 1600
mV. Calculate the value to be read as
a function of your test gas.
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