Gas Detector, Gas Sensor, Gas Alarm

Introduction

The SR-3000 combustible and toxic gas detector uses a catalytic sensor, electrochemical sensor or optical ionic sensor, and is an independent detector based on a highly integrated embedded industrial microprocessor. The software is optimized with instruction design and the hardware features a modularization design. The detector is user friendly, stable and reliable. It is easy to be installed and has a strong anti-interference ability.

Application

Metallurgy, chemical industry, petroleum, gas storage, environmental protection and other industries related to flammable, explosive and toxic gases.

Features
  • CAN bus protocol communication interface makes it easy to ad hoc a network.
  • Sensors with fault self-detection and identification which can be replaced on site.
  • The remote controller can be used to control the gas detector
  • The upper and low limit alarm
  • Stable and reliable, strong anti-interference ability and is easy to install.
Inquiry
Detection performance
Electrical properties
  • Power supply: 24VDC±6v
  • Power: <2W
  • Output signal: LCD digital display, 3-wire/2-wire, 4-20mA, RS485 interface, 2 sets of relay output (normal open-point switch output capacity 5A/220VAC), Acoustic-optic alarming
Mechanical properties
  • Body shell: ADC12 aluminum alloy
  • Sensor shell: 316 stainless steel
  • Weight: 1.5kg±0.1kg
Certification
  • Explosion proof certification: Ex d ⅡC T6 Gb
  • Metrological authentication: CMC
Work environment
  • Protection level: IP66
  • Range of temperature: -40°C --+70°C (Combustible gases) -10°C--+50°C (Toxic gases)
  • Range of humidity: 10—95%RH
List of Common Flammable and Explosive Gases for SR-3000 Detector
Name Molecule formula Relative density Combustion limit
The low limit The upper limit
Methane CH4 0.55 5 15
Toluene C6H5CH2 3.2 1.2 7.1
Methanol CH2OH 1.11 6.7 36
Methyl formate HCOOCH2 2.07 5 23
Ethyl formate HCOOCH2CH3 2.65 2.8 16
Methyl ethyl ether CH3OCH2CH3 2.1 2 10.1
Ethane CH3CH3 1.04 3 12.5
Acetylene CH≡CH 0.9 2.5 100
Ethanol CH3CH2OH 1.59 3.3 19
Ethylbenzene CH3CH2C6H5 3.66 1 6.7
Ethylene CH2＝CH2 0.97 2.7 36
Methyl acetate CH3COOCH3 2.56 3.1 16
Ethyl acetate CH3COOCH2CH3 3.04 2.2 11
N-butyl acetate CH3COOCH2CH2CH3 4.01 1.7 7.3
Propane CH3CH2CH3 1.56 2.1 9.5
Propanol CH3CH2CH3OH 2.07 2.1 13.5
Propylene CH2＝CHCH2 1.5 2 11.1
Acetone (CH3)2CO 2 2.6 12.8
Butane C4H10 2.05 1.9 8.5
Butanone CH3CH2COCH3 2.48 1.8 10
Butadiene CH2＝CHCH=CH2 1.87 2 12
Pentane C5H12 2.48 1.4 7.8
Hexane CH3(CH2)4CH3 2.97 1.1 7.5
Heptane C7H16 3.46 1.1 6.7
Octane CH3(CH2)3CH3 3.93 1 6.5
Carbon monoxide CO 0.97 12.5 74
Ammonia NH3 0.59 15 33.6
Hydrogen H2 0.07 4 75
Benzene C6H6 2.7 1.3 7.1
Isobutane (CH3)2CHCH3 2 1.8 8.4
Isopropyl alcohol (CH3)2CHOH 2.07 2 12
Cyclohexane CH2(CH2)4CH2 2.9 1.3 8
Propylene oxide CH3CHCH2O 2 2.8 37
Ethylene oxide CH2CH2O 1.52 3.6 100
Two ethyl ether (CH3CH5)2O 2.55 1.9 36
Dimethyl ether (CH3)2O 1.59 3.4 27
Xylene C6H4(CH3)2 3.66 1 7
Gasoline C4~C12 Hydrocarbon mixtures 0.73 1.3 7.1
List of Common Toxic Gases for SR-3000 Detector
Name Molecular formula Range (PPM) Response time (s)
Oxygen O2 0-25 < 28
Carbon monoxide CO 0-1000 < 30
Hydrogen sulfide H2S 0-100 < 22
Hydrogen H2 0-1000 < 50
Ammonia NH3 0-1000 < 90
Chlorine CL2 0-20 < 32
Nitric oxide NO 0-500 < 32
Nitrogen dioxide NO2 0-50 < 31
Sulfur dioxide SO2 0-100 < 22
Vinyl chloride C2H3CL 0-100 < 92
Acrylonitrile C3H3N 0-200 < 166
Methanol CH3OH 0-500 < 79
Formaldehyde CH2O 0-500 < 76
Ethylene oxide C2H4O 0-200 < 122
Hydrogen chloride HCL 0-50 < 82
Hydrogen cyanide HCN 0-30 < 94
Hydrogen fluoride HF 0-10 < 94
Application areas