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    2231

    SE237 Stand Alone industrial gas detector, with replaceable sensor cartridge

    SE237 is a standalone gas detector equipped with relay and 4-20 mA outputs. It can be fitted with a catalytic, pellistor, electrochemical, or semiconductor sensor depending on the gas to be detected. It is equipped with a sensor… See more...
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    Standard Specifications
    Power supply: 12-24V DC (-10/+15%)
    Power consumption: 3W
    Outputs: 4 relays + 1 linear 4-20mA
    1st relay threshold: 10% LEL (Methane and LPG) 50ppm (CO)
    2nd relay threshold: 20% LEL (Methane and LPG) 100ppm (CO)
    Relay capacity: 230V AC - 3A, changeover contacts, normally energized
    Protection rating: IP65
    Installation: wall-mounted
    Dimensions: 195x105x85mm
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    Available Calibration Tables

    Table 1

    Gas infiammabili – Sensori “PX”
    Flammable gases - "PX” sensors
    Sensore tarabile per / Sensor calibrated for K LFL (% v/v) Densità (Aria/Air = 1)
    Acetato di etile / Ethyl acetate 1.67 2.20 3.04
    Acetone / Acetone 1.67 2.50 2.00
    Alcool isopropolico (2-Propanolo) / Iso-Propil Alcool (IPA) 1.67 2.00 2.10
    Ammoniaca / Ammonia 0.77 15.00 0.59
    Benzina / Petrol 1.54 1.20 2.80
    Butano / Butane 1.43 1.40 2.05
    Eptano / Heptane 1.82 1.10 3.46
    Esano / Hexane 1.54 1.00 2.97
    Etanolo (Alcool etilico) / Ethanol (Ethyl alcohol) 1.43 3.10 1.59
    Etilene / Ethylene 1.18 2.30 0.97
    Idrogeno / Hydrogen 1.54 4.00 0.07
    Metano / Natural gas 1.00 4.40 0.55
    Metanolo (Alcool metilico) / Methanol (Methyl alcohol) 1.00 5.50 1.11
    Metiletilchetone (Butanone) / Butanone (MEK) 2.22 1.80 2.48
    Ottano / n-Octane 2.00 0.80 3.93
    Pentano / n-Pentane 1.43 1.40 2.48
    Propano / Propane 1.33 1.70 1.56
    Toluene (Toluolo) / Toluene 1.67 1.10 3.20

    Table 2

    Gas infiammabili – Sensori “PX-H”
    Flammable gases - "PX-H” sensors
    Sensore tarabile per Sensor calibrated for K LFL (% v/v) Densità (Aria/Air = 1)
    14-Diossano / 1,4-Dioxane 2.21 2.10 3.00
    Acetaldeide (Aldeide acetica) / Acetaldehyde 1.57 4.00 1.52
    Acetato di butile / Buthyl acetate 2.48 1.30 4.01
    Acetato di etile / Ethyl acetate 2.15 2.20 3.04
    Acetilene / Acetylene 1.59 2.30 0.90
    Acetone / Acetone 1.67 2.50 2.00
    Acetonitrile / Acetonitrile 1.96 3.00 1.42
    Acido acetico / Acetic acid 3.00 4.00 2.07
    Acido butirrico-n / n-Butyric acid 2.14 2.00 3.04
    Acido cianidrico / Hydrogen cyanide 1.94 5.40 0.90
    Acqua Ragia / White spirit 2.00 0.80 4.60
    Alcool butilico terz / tert-Butyl alcohol 1.56 2.40 2.60
    Alcool butilico-n / n-butyl alcohol (1-Butanol) 2.20 1.70 2.60
    Alcool isobutilico / Iso-Buthyl alcohol-2-Methyl-1-Propanol 1.90 2.00 2.55
    Alcool isopropolico (2-Propanolo) / Iso-Propil Alcool (IPA) 0.77 2.00 2.10
    Alcool propilico (1-Propanolo) / Iso-Propyl alcohol (Propan 1-ol) 1.69 2.20 2.10
    Ammoniaca / Ammonia 1.82 15.00 0.59
    Anidride acetica / Acetic anhydride 2.52 2.00 3.50
    Anilina / Aniline 2.61 1.20 3.20
    Benzina (verde) / Petrol (unlead) 2.20 2.80 1.20
    Benzolo / Benzene 2.21 1.20 2.70
    Butadiene-13 / 13-Butadiene 2.24 1.40 1.87
    Butano / Butane 1.92 1.40 2.05
    Butene-1 / But-1-ene 1.89 1.60 1.95
    Butene-2-trans / trans-Butene-2 (trans-But2ene) 1.66 1.80 1.93
    Butene-2cis (Butene-2) / cis-Butene-2 (cis-But2ene) 1.95 1.60 1.93
    Cianogeno / Cyanogen (Ethanedinitrile) 0.93 6.00 1.80
    Cicloesano / Cyclohexane 2.16 1.20 2.90
    Ciclopentano / Cyclopentane 1.70 1.40 2.40
    Ciclopropano / Cyclopropane 1.34 2.40 1.45
    Clorobenzene / Chlorobenzene 2.62 1.40 3.88
    Cloruro di etile / Cloroethane (ethyl cloride) 1.54 3.60 2.20
    Cloruro di metile / Chloromethane (Methyl chloride) 1.14 7.60 1.78
    Cloruro di metilene / Methylene chloride (Dichloromethane) 0.90 15.50 2.90
    Cloruro di vinile (Cloroetilene) / Vinyl chloride (1-Chloroethylene) 1.78 3.60 2.15
    Decano / Decane 3.43 0.70 4.90
    Dimetilbutano / Dimethylbutane 2.36 1.10 3.00
    Dimetilidrazina / N N-Dimethylhydrazine 1.57 2.40 2.01
    Eptano / Heptane 1.54 1.10 3.46
    Esano / Hexane 1.43 1.00 2.97
    Etano / Ethane 1.47 2.50 1.04
    Etanolo (Alcool etilico) / Ethanol (Ethyl alcohol) 1.18 3.10 1.59
    Etere dietilico / Diethyl ether 1.68 2.70 1.59
    Etilammina / Ethylamine 1.59 2.68 1.50
    Etilbenzolo (Etilbenzene) / Ethylbenzene 2.45 1.00 3.66
    Etilene / Ethylene 1.00 2.30 0.97
    Etilmercaptano / Ethylmercaptan (Ethanethiol) 1.54 2.80 2.11
    Etilmetiletere (Etere metietilico) / Ethyl methyl ether 2.03 2.00 2.10
    Formiato di metile / Methyl formate 1.63 5.00 2.07
    Idrazina / Hydrazine 1.86 1.80 1.10
    Idrogeno / Hydrogen 1.24 4.00 0.07
    Idrogeno solforato / Hydrogen sulphide 2.20 4.00 1.19
    Iso-butano / iso-Butane 2.23 1.30 2.00
    Iso-Butilene / iso-Butylene 1.72 1.80 1.94
    Iso-Pentano / iso-Pentane 2.18 1.40 2.50
    Metano / Natural gas 1.00 4.40 0.55
    Metanolo (Alcool metilico) / Methanol (Methyl Alcohol) 1.28 5.50 1.11
    Metilacetato (Acetato di metile) / Methyl acetate 1.84 3.20 2.56
    Metilammina / Methylamine 1.28 4.20 1.00
    Metilcicloesano / Methylcyclohexane 2.25 1.15 3.38
    Metilesano / Methylhexane 2.09 1.20 3.40
    Metiletilchetone (Butanone) / Butanone (MEK) 2.00 1.80 2.48
    Metilidrazina / Methylhydrazine 2.07 2.50 1.60
    Metilmercaptano / Methanethiol (Methyl mercaptan) 1.41 3.90 1.66
    Metilpentano / Methylpentane 2.38 1.10 3.00
    Metilpropilchetone / Methyl propyl ketone (Pentan-3one) 2.22 1.50 3.00
    Nitrometano / Nitromethane 1.84 7.30 2.10
    Nonano / Nonane 1.84 0.70 4.43
    Ossido di carbonio / Carbon Monoxide 1.26 10.90 0.97
    Ossido di etilene / Ethylene oxide 2.05 0.09 1.52
    Ossido di propilene / Propylene oxide (1,2-propylene oxide) 2.28 2.10 2.00
    Ottano-n / n-Octane 3.14 0.80 3.93
    Pentano / n-Pentane 1.94 1.40 2.48
    Pentene-1 / 1-Pentene 2.07 1.40 2.40
    Propano / Propane 1.95 1.70 1.56
    Propilamina-n / Propylamina 1.82 2.00 2.04
    Propina / Propyne 2.03 1.70 1.38
    Toluene (Toluolo) / Toluene 2.37 1.10 3.20
    Trietilammina / Trethylamine 2.22 1.20 3.50
    Trimetilammina / Trimethylamine 1.71 2.00 2.04
    Xilolo (Xileni) / Xylenes 2.37 1.00 3.66

    Table 3

    Gas tossici e ossigeno – Sensori “E”
    Toxic gases and oxygen - "E" sensors
    Gas di taratura / Calibration gas Formula chimica / Chemical formula Range di misura / Measuring range TLV-TWA Altezza installazione / Installation height
    Acido cianidrico / Hydrogen cyanide HCN 10 ppm 4.7 ppm 1.6 m dal pavimento
    Acido cloridrico / Hydrogen chloride HCl 10 ppm 1 ppm 30 cm dal pavimento
    Ammoniaca / Ammonia NH3 300 ppm 25 ppm 30 cm dal soffitto
    Biossido di azoto / Nitrogen dioxyde NO2 30 ppm 3 ppm 30 cm dal pavimento
    Biossido di zolfo / Sulfur dioxide SO2 20 ppm 2 ppm 30 cm dal pavimento
    Cloro / Chlorine Cl2 10 ppm 0.5 ppm 30 cm dal pavimento
    Idrogeno solforato / Hydrogen sulphide H2S 100 ppm 5 ppm 30 cm dal pavimento
    Monossido di carbonio / Carbon monoxide CO 300 ppm 30 ppm 1.6 m dal pavimento
    Ossido di azoto / Nitric oxide NO 100 ppm 25 ppm 1.6 m dal pavimento
    Ossigeno O2 25% Vol. - 1.6 m dal pavimento

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