5.20
Step Procedure Normal
Indication
Corrective
Action
7
8
9
Pass the air as span gas through
the transducer at a sample rate of
100 to 200 ml/min.
Output from the photo-cells should
increase.
Refit wiring to TB-D-1, 2 and 3.
e.g.: N
2
1mV
Air (21% O
2
)
280mV
Replace
oxygen
measuring
cell. See
section
5.3.2.1.
10
11
12
Temperature Sensor
Remove wiring from TB-D-11 and
9 (connections from resistance
thermometer).
Measure resistance and determine
temperature of transducer unit
from Table 5.1 and compare with
known reference.
Refit wiring to TB-D-11 and 9
See Table 5.1 Replace
resistance
thermo-
meter.
13
14
Pressure Compensation
Transducer (if fitted)
Measure voltage at TB-D-8 w.r.t.
TB-D-14.
At normal atmospheric pressure of
1 bar ± 50mbar Measure pressure
transducer output at TB-D-13 w.r.t.
TB-D-12
5V±0.03V
22mV±5mV
Replace
amplifier
board
01100925B
or ADC
board
01100916A.
Replace
pressure
transducer.
See Section
5.3.2.6.
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