Univex 5100-02-IT, IT Series instruction manual 7.9APPENDIX I COMBUSTIBLE GAS SCALING FACTORS, Page

Model 5100-02-IT Combustible Gas Sensor Module

7.9APPENDIX I: COMBUSTIBLE GAS SCALING FACTORS

For combustible gas monitoring, a calibration standard of Methane may be used in conjunction with scaling factors to cause Sentry concentration display and alarm function in %LEL scale of another gas as follows:

GAS	METHANE	GAS	METHANE
	FACTOR		FACTOR
Acetaldehyde	60	Diethyl Ether	46
Acetic Acid	54	Dimethoxyethane	42
Acetic Anhydride	46	Dimethyl Ether	63
Acetone	52	Dimethylformamide	46
Acetylene	57	Ethyl Formate	44
Alkyl Alcohol	51	Ethylmercaptan	56
Ammonia	126	n-Heptane	39
n-Amyl Alcohol	33	n-Hexane	37
Aniline	39	Hydrazine	45
Benzene	41	Hydrogencyanide	48
Biphenyl	25	Hydrogen	77
1,3-Butadiene	56	Hydrogen Sulfide	41
n-Butane	58	Methane	100
iso-Butane	52	Methyl Actetate	50
Butene-1	45	Methyl Alcohol	86
cis-Butene-2	48	Methylamine	77
trans-Butene-2	51	Methyl Bromide	90
n-Butyl Alcohol	34	Methyl Chloride	102
iso-Butyl Alcohol	53	Methylcyclohexane	44
tert-Butyl-Alcohol	74	Methylenedichloride	93
n-Butyl Benzene	31	Methylethylether	44
iso-Butyl Benzene	32	Methylethylketone	41
n-Butyric Acid	38	Methyl Formate	67
Carbon Disulfide	18	Methylmercaptan	61
Carbon Monoxide	75	Methylpropionate	51
Carbon Oxysulphide	93	Methyl n-propylketone	40
Chlorobenzene	34	Napthalene	34
Cyanogen	89	Nitromethane	34
Cyclohexane	41	n-Nonane	31
Cyclopropane	62	n-Octane	37
n-Decane	33	n-Pentane	46
Diethylamine	49	i-Pentane	46
Dimethylamine	58	Propane	55
2,3-Dimethylpentane	40	n-Propyl Alcohol	47
2,3-Dimethylpropane	40	n-Propylamine	48
Dimethylsulphide	43	n-Propylchloride	50
1,4-Dioxane	45	Propylene	52
Epichlorohydrin	45	Propyleneoxide	46
Ethane	68	iso-Propylether	44
Ethyl Acetate	51	Propyne	42
Ethyl Alcohol	73	Toluene	40
Ethylamine	53	Triethylamine	40
Ethyl Benzene	36	Trimethylamine	48
Ethyl Bromide	91	Vinylethylether	42
Ethyl Chloride	57	o-Xylene	36
Ethylcyclopentane	40	m-Xylene	39
Ethylene	71	p-Xylene	39
Ethylenedichloride	66	JP-4 (Jet Fuel)	41
Ethyleneoxide	52

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).

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