Gas Detector, Gas Sensor, Gas Alarm
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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.
Detection performance
- Gas Types
For further information of combustible gases, see
For further information of toxic gases, see - Accuracy: ±3% FS
- Receptivity: <2%
- Response time: <22s (Combustible gases); For toxic gases, see
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
- Air Conditioning and Ventilation Gas Detection
- Biogas Plant Gas Analysis
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