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Shandong Snow Electronics Co., Ltd
Snow Electronic Explosion proof Catalytic Combustion Combustible Gas Detector
NegotiableUpdate on 05/06
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Overview
Snow Electronic Explosion proof Catalytic Combustion Combustible Gas Detector: $r $n1, using imported components, with stable performance and low power consumption. $r$n2、 High precision and fast response speed. $r$n3、 Two wire M-BUS standard signal output, also capable of M-BUS, sound and light, and switch output; $r$n4、 The setting and modification of its own parameters can be achieved through the instructions of the controller. $r$n5、 The digital detector can be zeroed and calibrated using magnetic induction without the need to open the cover. $r$n6、 The digital detector displays the concentration on the LCD screen on-site, which is more intuitive. $r$n7、 On site sound and light alarm, easy installation, and long transmission distance.
Product Details
Snow Electronic Explosion proof Catalytic Combustion Combustible Gas Detectorworking principle
The detector is mainly composed of sensors, integrated circuits, operational amplification circuits, analog voltage to standard current conversion, etc. The sensor converts the gas concentration into an analog electrical signal, which is then converted into a 4-20mA standard signal or RS485 signal and switch signal output through an integrated operational amplifier circuit and simulated voltage, and uploaded to the gas alarm controller or DCS system.
Snow Electronic Explosion proof Catalytic Combustion Combustible Gas DetectorMain technical indicators
1. Detection principle: catalytic combustion type, electrochemical type
2. Gas detection, measurement range, alarm points: see label
3. Indication error: ± 5% F · S
4. Response time: less than 30 seconds
5. Power supply: DC24V
6. Power consumption: 1.2W
7. Environment: Combustible gas temperature: -40 ℃ -70 ℃ Toxic gas -20-50 ℃ Humidity: ≤ 95% RH
8. Atmospheric pressure: 86KPa -106KPa
9. Insulation resistance: ≥ 100M Ω in normal environment
When the humidity is 94% RH, ≥ 1M Ω
10. Working mode: continuous
11. Explosion proof method: Explosion proof type
12. Sampling method: diffusion
13. Explosion proof grade: ExdIICT6
14. Sensor lifespan: 3 years for catalytic combustion and 2 years for electrochemical combustion
15. Signal output: 4-20mA or switch quantity
16. Three wire system (split line) transmission distance:
Transmission distance<300m (three core shielded wire diameter ≥ 0.5mm2)
Transmission distance ≥ 300m (three core shielded wire diameter ≥ 1.5mm2)<1000m
17. The transmission distance of RS485 bus shall not exceed 1200 meters (two core shielded twisted pair cable, wire diameter ≥ 0.75mm2)
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