Properties and Applications:
Combustible gases are found in many applications, especially fuels, chemical processes and applications for the specific combustible gases. Unlike the ChemDAQ hydrocarbon sensor, the combustible sensors will respond to any combustible gas.
Physical Properties:
Some representative compounds are shown in the table below
Compounds |
Formula |
LEL (% v/v) |
BP (oC) |
Acetylene |
HC=CH |
2.5 |
-84 |
Butane |
CH3(CH2)2CH3 |
1.6 |
0.5 |
Hydrogen |
H2 |
4% |
-253 |
Methane |
CH4 |
5 |
-162 |
Propane |
CH3CH2CH3 |
2.1 |
-42.1 |
Propylene |
CH3CH=CH2 |
2.0 |
-47.6 |
Steri-Trac® CMB Monitor
Availability: Special order
Specifications:
Sensor Type Pellistor
Range: 0 – 100% LEL
Resolution: 1 % LEL
Temp Range: -20 to +50 oC
Response time (t90): <30 s
See also
- ChemDAQ hydrocarbon sensor for measuring hydrocarbons at sub-flammable concentrations
- ChemDAQ’s VOC monitors for monitoring ppb & ppm concentrations of hydrocarbons and other VOCs.
Notes:
- Sensor responds to all combustible gases but should not be used in environments where volatile sulfur, silicon or lead compounds may be present since these may cause poisoning of the sensor.
- The sensors can be calibrated for individual gases – contact ChemDAQ for more details.
- Specifications subject to change
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