Combustible gas alarm device

Introduction: Overview of Combustible Gas Detector: Combustible gas detector converts the gas concentration detected on site into a standard 4-20mA current signal, with online non-stop digital free configuration, LED on-site display suitable for factory applications, plug and play sensor replacement, fully international

Overview of combustible gas detector:

Combustible gas detector is a device that converts the gas concentration detected on site into a standard 4-20mA current signal, with online non-stop digital free configuration, LED on-site display suitable for factory applications, and sensor replacement

Plug and play, fully international standard intelligent toxic and harmful gas detector. The combustible gas detector has the characteristics of performance, stable operation, easy installation and maintenance, and complete measurement of gas types, which can meet the needs of engineering

The requirements for on-site safety monitoring of equipment operation and the diversification of gas types for measurement; Applied in industries such as petroleum, chemical, metallurgy, refining, gas transmission and distribution, biomedicine, and water treatment.

Combustible gas detectorProduct features:

Advanced 16 bit ultra-low power embedded microcontroller

Ø Standard 4-20mA current signal output, compatible with existing alarm control units or DCS (Distributed Control System)

LED on-site display suitable for factory applications (optional LCD display)

Ø Standard three button implementation for single person single point on-site maintenance

Important operations require password verification to effectively prevent accidental operations

Ø Simple calibration function to reduce measurement errors

On site two-level light alarm, relay output (external sound and light alarm or drive exhaust and other peripheral devices)

Combustible gas detectorTechnical parameters:

Measurement range: see the table below

Applicable gases: flammable gases, oxygen, toxic gases

Working voltage: 24VDC ± 15%

Signal output: 4-20mA linear current output; Or RS485 signal output (optional)

Response time: T90 ≤ 30 seconds

Recovery time: ≤ 30 seconds

Accuracy: ± 3% F.S

Display mode: LED digital tube display

Environmental temperature: Toxic gas: -20~+50 ℃

Combustible gas: -40~+70 ℃

Environmental humidity:<90% R.H. (no condensation)

Explosion proof grade: Exd IICT6 (explosion-proof application)

Protection level: IP66

Transmission cable: Three core shielded cable RVVP 3 × 1.5MM22

Transmission distance: less than 1000m

Size and weight: approximately 1.5kg
Size and weight: approximately 1.5kg

Product Information Sheet for Combustible Gas Detector

Product Information Sheet: Changzheng Instrument (Jinhu) Co., Ltd
PRODUCT MODEL	Detect gas	Standard range	resolution	Response time (T90)	Default Level 1 call the police	Default Level 2 call the police
CQYK-O2	oxygen	0－30%vol	0.1%vol	≤ 15 seconds	Underreported 18.5% vol	Overreported 18.5% vol
CQYK-CO	carbon monoxide	0－1000ppm	1 ppm	≤ 15 seconds	50ppm	150ppm
CQYK-H2S	hydrogen sulfide	0－100ppm	1 ppm	≤ 15 seconds	10ppm	15ppm
CQYK-HCN	hydrogen cyanide	0－20ppm	0.1ppm	≤ 30 seconds	5ppm	10ppm
CQYK-CL2	chlorine	0－20ppm	0.1 ppm	≤ 30 seconds	2ppm	5ppm
CQYK-O3	ozone	0－5ppm	0.01 ppm	≤ 25 seconds	0.1ppm	0.5ppm
CQYK-NH3	ammonia	0－200ppm	1 ppm	≤ 30 seconds	25ppm	50ppm
CQYK-H2	hydrogen	0－1000ppm	1 ppm	≤ 30 seconds	50ppm	200ppm
CQYK-NO2	nitrogen dioxide	0－20ppm	0.1 ppm	≤ 25 seconds	2ppm	5ppm
CQYK-PH3	phosphine	0-20ppm	0.1 ppm	≤ 15 seconds	1ppm	3ppm
CQYK-C3H3N	acrylonitrile	0-100ppm	1ppm	≤ 30 seconds	5ppm	15ppm
CQYK-NO	nitric oxide	0-250ppm	1ppm	≤ 25 seconds	35ppm	50ppm
CQYK-HCL	Hydrogen chloride	0-20ppm	1ppm	≤ 25 seconds	3ppm	5ppm
CQYK-SO2	sulfur dioxide	0－20ppm	0.1ppm	≤ 15 seconds	2ppm	5ppm
CQYK-CO2	carbon dioxide	0-5000ppm	1ppm	≤ 30 seconds	1000ppm	2000ppm
		0-5.00%vol	0.01%vol		1.00%vol	2.00%vol
		0-10.00%vol	0.01%vol		2.00%vol	5.00%vol
CQYK-VOC	Organic volatile compounds	0-1000ppm	0.1ppm	≤ 60 seconds	50ppm	200ppm
CQYK-EX	Combustible gas	0-100%LEL	1%LEL	≤ 30 seconds	20%LEL	50%LEL
Please contact our company for gas types and ranges not listed