Please note we have developed tailor made signal boards for this sensor, which can be purchased separately.
Contact us for more details about application of this sensor or various signal boards suitable for this sensor.
Model: 4P-75 4P-75C
Origin: other overseas regions
Output model category: analog sensor
Working principle: gas sensor
Applicable scenarios: environment, coal mine, metallurgy, fire fighting, petrochemical industry
Sensor category: gas sensor
4P-75C performance characteristics: (upgraded version of 4P-75)
Working principle: catalytic oxidation
Gas detection: combustible gas
Suitable for: methane, ethane, propane, butane, pentane, hexane, carbon monoxide and hydrogen
Not suitable for: higher hydrocarbons, alcohols, ketones, esters, hydrosulfides and other sulfur-containing compounds
Range: 0-100% LEL
Sensitivity*: 24±4 mV/% methane
T90 response time*: <20 seconds (methane)
Toxic resistance: anti-H2S poisoning, high-grade silica gel
H2S filter life: usually 1000ppm hours
Linearity: linear up to 3% methane
Working voltage: 3.0±0.02 VDC
Detection working current: 75±7 mA
Maximum power consumption: 263 mW
Resolution: 1% LEL
Shell material: stainless steel 316
Pin material: gold-plated brass
Weight: 24 grams (nominal)
Azimuth sensitivity: none
Operating temperature range: -20oC to +55oC
Working pressure range: 1 atmosphere ± 20%
Working humidity range: 0-90%RH non-condensing
The life cycle
Long-term range drift*: <5% of signal/month
Long-term zero drift*: <5% LEL methane/month
Recommended storage temperature: 0℃ to 20℃
Shelf life: 12 months from the date of shipment
Note: When calibrating the flow rate, under the condition of 20℃, 50% relative humidity, and 1013Mbar, at a speed of 300ml/min.
- It is forbidden to use an electric soldering iron to solder the lead wire of the sensor pin at high temperature. Please use it with the supplied pinhole!
- It is forbidden to use glue potting with strong heat, volatilization and corrosion properties!