Carbon
Monoxide Detection System | Method to Detect Carbon Monoxide in Compressed Air
Objective: The Objective of
Carbon Monoxide Detection System is to determine the Amount of Carbon Monoxide
Content in the Compressed / Nitrogen Air / Other Gas Line.
Procedure:
Equipment
Requirement:
Gastec
Detector Tube
TEK
/ MCAS Tube
Stop
Watch
Sample
Collection Procedure:
Flush
the Compressed air from the user point for 2 Minutes, before sampling
Connect
the Compressed Air Line to TEK / MCAS Eco Inlet
Adjust
the Flow to 0.1 LPM Using Adjustable Valve Then Close the ON/OFF Valve.
Break the both end
of Gastec tube and Put it into the flow meter outlet so that the arrow mark
Outwards
the flow meter
Open
the ON/OFF valve with stopwatch for 4 minutes
For
Carbon Monoxide follow the parameters as per following table
Coefficient
of Variation :10%(For 1-10 ppm), 5% (for 10 to 30 ppm)
As
soon as sampling has finished, Closed the ON/OFF Valve and remove the tube from
the tube holder then read the Colour changed layer Immediately.
Correction
for temperature, Humidity and Pressure:
Temperature
Temperature
Temperature
0C
|
0
|
5
|
10
|
15-40
|
Correction
Factor
|
1.8
|
1.3
|
1.1
|
1.0
|
Humidity
No
Correction required
Pressure:
To Correct for pressure, use the formula as mentioned below:
Tube
Reading (ppm) x 1013(hPa)
Atmospheric
Pressure (hPa)