STATUS SCIENTIFIC CONTROLS FGD 3 Series, Manual

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STATUS SCIENTIFIC CONTROLS
FGD3 Infrared Gas Detector Heads
TD06/024 Issue: 7 Change Note: 1904 Page 29
5.4 Sensor Replacement
Sensor replacement should only be performed by Status Scientific Controls field
service personnel, or a trained engineer. Consult Status Scientific Controls for further
details.
Following sensor replacement:-
•
The sensors electronics must be set-up.
•
A full calibration must be performed, (refer to section 5)
5.4.1 Sensor Electronics Verification.
Select menu mode
C:9 (refer to section 5.2.9)
Select engineer code C:9 - 3 and verify that the sensor temperature is approximately
7
o
C above ambient, @ 25
o
C.
Select engineer code C:9 - 4 and verify that the detector output corresponds with the
table below.
Select engineer code C:9 - 5 and verify that the reference output corresponds with the
table below.
SENSOR MIN TYP MAX
HC
Ref. TBA 400 TBA
Det. TBA 700 TBA
Carbon Dioxide
Ref. 750 800 850
Det. 550 600 650
Note:
1) The sensor must be powered for at least 10 minutes before any readings are
taken.
2) The sensors must be in zero gas.