STATUS SCIENTIFIC CONTROLS
FGD3 Infrared Gas Detector Heads
TD06/024
Issue:
7
Change Note:
1904
Page 22
5.2.11
C:12 - Cross Reference
This option is used to allow the user to calibrate the sensor with a commonly available
gas (e.g. methane or propane) but use the unit to detect a different gas (e.g. methanol
or acetone etc.). This is achieved by adjusting the cross-reference factor according to
the difference in signal that is detected for the calibration gas compared to the target
gas.
•
From the menu system select menu option:
C: 12
and press ENTER.
•
Using the INCREASE and DECREASE buttons, set the required cross-
reference factor.
•
Press ENTER to store the new value.
Note:
Pressing MENU rather than ENTER exits the cross-reference feature
without saving any changes.
•
Press MENU to close the menu system.
Infrared sensor
Target gas
Internal sensor
setting
Calibration gas
Cross
Reference
Factor
Methane
CH4
Methane
1.00
Propane
HC
Propane
1.00
Toluene
CH4
Methane
1.30
Ethanol
HC
Propane
1.20
IPA
HC
Propane
1.72
Hexane
HC
Propane
1.00
Acetic Acid
CH4
Methane
2.00
Methanol
HC
Propane
1.00
Acetone
ACET
Acetone
1.00
Acetone
CH4
Methane
1.50
Summary of Contents for FGD 3 Series
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