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Product Details:
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| Gases Detected: | Most Combustible Gases And Vapours | Range: | 0-100% LEL |
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| Operating Voltage: | 3.30V D.c. | Detector Operating: | 74±6mA |
| Poison Resistance: | Resistant To H2S Poisoning |
Product Description:
4P-90 4P-90C PM143-000 Combustible Gas sensor For Catalytic Combustion
Features:
The table below shows the variation in response of a 4P-
90 CiTipeL on exposure to a range of gases and vapours
at the same %LEL concentration. The figures are
experimentally derived and expressed relative to the
methane signal (=100).
Note: The results are intended for guidance only. For the
most accurate measurements an instrument should
be calibrated using the gas under investigation.
Gas/Vapour Relative
Sensitivity* Gas/Vapour Relative
Sensitivity*
Methane 100 Carbon monoxide 110
Propane 60 Acetone 65
n-Butane 60 Methyl ethyl ketone 50
n-Pentane 55 Toluene 45
n-Hexane 45 Ethyl acetate 50
n-Heptane 45 Hydrogen 105
n-Octane 40 Ammonia** 125
Methanol 90 Cyclohexane 55
Ethanol 70 Leaded Petrol 55
Iso-propyl alcohol 55 Unleaded petrol 55
Acetylene 80 Ethylene 90
Specifications:
| H2S filter lifetime | typically 1000ppm hr |
| Output Sensitivity | 28±5 mV/%methane |
| T90 Response Time | <20 seconds (methane) |
| Linear to | 3% methane |
| Long Term Sensitivity Drift | <5% signal/month |
| Long Term Zero Drift | <5%LELmethane/month |
| Warranty Period |
12 months from date of despatch |
Contact Person: Xu
Tel: 86+13352990255
