Gas Detector, Gas Sensor, Gas Alarm Manufacturer

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
Name	Molecule formula	Relative density	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