Instruction Manual
COMBUSTIBLE GAS SCALING FACTORS
For combustible gas monitoring, a calibration standard of Methane or Propane my be used in conjunction with scaling factors to cause alarm function in %LEL scale of another gas as follows:
G A S | METHANE | PROPANE |
| FACTOR | FACTOR |
Acetaldehyde | 6 0 | 1 0 9 |
Acetic Acid | 5 4 | 9 8 |
Acetic Anhydride | 4 6 | 8 3 |
Acetone | 5 2 | 9 4 |
Acetylene | 5 7 | 103 |
Alkyl Alcohol | 5 1 | 9 2 |
Ammonia | 126 | 229 |
3 3 | 5 9 | |
Aniline | 3 9 | 7 1 |
Benzene | 4 1 | 7 4 |
Biphenyl | 2 5 | 4 5 |
5 6 | 101 | |
5 8 | 106 | |
5 2 | 9 4 | |
4 5 | 8 2 | |
4 8 | 8 8 | |
5 1 | 9 2 | |
3 4 | 6 2 | |
5 3 | 9 6 | |
7 4 | 134 | |
3 1 | 5 7 | |
3 2 | 5 8 | |
3 8 | 6 9 | |
Carbon Disulfide | 1 8 | 3 2 |
Carbon Monoxide | 7 5 | 137 |
Carbon Oxysulphide | 9 3 | 169 |
Chlorobenzene | 3 4 | 6 2 |
Cyanogen | 8 9 | 162 |
Cyclohexane | 4 1 | 7 4 |
Cyclopropane | 6 2 | 113 |
3 3 | 5 9 | |
Diethylamine | 4 9 | 8 8 |
Dimethylamine | 5 8 | 105 |
4 0 | 7 2 | |
4 0 | 7 2 | |
Dimethylsulphide | 4 3 | 7 9 |
4 5 | 8 1 | |
Epichlorohydrin | 4 5 | 8 2 |
Ethane | 6 8 | 123 |
Ethyl Acetate | 5 1 | 9 3 |
Ethyl Alcohol | 7 3 | 132 |
Ethylamine | 5 3 | 9 5 |
Ethyl Benzene | 3 6 | 6 5 |
Ethyl Bromide | 9 1 | 165 |
Ethyl Chloride | 5 7 | 103 |
Ethylcyclopentane | 4 0 | 7 2 |
Ethylene | 7 1 | 128 |
Ethylenedichloride | 6 6 | 120 |
Ethyleneoxide | 5 2 | 9 4 |
G A S | METHANE | PROPANE |
| FACTOR | FACTOR |
Diethyl Ether | 4 6 | 8 4 |
Dimethoxyethane | 4 2 | 7 5 |
Dimethyl Ether | 6 3 | 113 |
Dimethylformamide | 4 6 | 8 3 |
Ethyl Formate | 4 4 | 8 0 |
Ethylmercaptan | 5 6 | 102 |
3 9 | 7 0 | |
3 7 | 6 7 | |
Hydrazine | 4 5 | 8 2 |
Hydrogencyanide | 4 8 | 8 6 |
Hydrogen | 7 7 | 139 |
Hydrogen Sulfide | 4 1 | 7 4 |
Methane | 100 | 181 |
Methyl Actetate | 5 0 | 9 0 |
Methyl Alcohol | 8 6 | 156 |
Methylamine | 7 7 | 140 |
Methyl Bromide | 9 0 | 162 |
Methyl Chloride | 102 | 186 |
Methylcyclohexane | 4 4 | 8 0 |
Methylenedichloride | 9 3 | 168 |
Methylethylether | 4 4 | 8 0 |
Methylethylketone | 4 1 | 7 5 |
Methyl Formate | 6 7 | 121 |
Methylmercaptan | 6 1 | 110 |
Methylpropionate | 5 1 | 9 3 |
Methyl | 4 0 | 7 3 |
Napthalene | 3 4 | 6 2 |
Nitromethane | 3 4 | 6 2 |
3 1 | 5 7 | |
3 7 | 6 8 | |
4 6 | 8 3 | |
4 6 | 8 4 | |
Propane | 5 5 | 100 |
4 7 | 8 5 | |
4 8 | 8 8 | |
5 0 | 9 0 | |
Propylene | 5 2 | 9 3 |
Propyleneoxide | 4 6 | 8 3 |
4 4 | 7 9 | |
Propyne | 4 2 | 7 5 |
Toluene | 4 0 | 7 3 |
Triethylamine | 4 0 | 7 2 |
Trimethylamine | 4 8 | 8 8 |
Vinylethylether | 4 2 | 7 6 |
3 6 | 6 5 | |
3 9 | 7 1 | |
3 9 | 7 1 | |
4 1 | 7 3 |
NOTES:
1.Scaling factors are not FMRC approved.
2. | Base data source: EEV sensor specification catalog. (EEV claims some data is the result of specific | tests, |
| other data is empirically derived.) |
|
3. | Display = Cal Gas / Factor = % LEL |
|
| => must be less than 1 |
|
TABLE 1
COMBUSTIBLE GAS SCALING FACTORS
Page: 16 | Model 4105 Gas Sensor Module (12/02) |
