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Home > Test & Measurement > Gas Detectors

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Fixed Hydrogen Sulfide (H2S) Gas Detector, 0 to 50/100/200 ppm

$486.77

Fixed H2S gas detector is 24 hours online to detect the hydrogen sulfide and gives sound and light alarm with measuring range

SKU: CHN-GAS-H2S-A

Free Shipping Worldwide

Delivery date: 6-12 days

Overview
Documents

Fixed hydrogen Sulfide (H₂S) gas detector is used to monitor the H₂S concentration with measuring range from 0 to 50/100/200 ppm in different kinds of environments or pipeline and alarm with sound and light, to safeguard the organic life.

Features

Adopting high precision sensor for accurate gas leak detection.
Equipped with 3-wire system 4-20mA analog output, relay output, RS485 output (optional).
Compatible with various controlled alarms, PLC, DCS and other control system, and can be remote monitored.
Explosion-proof design, fast, relaible and stable.
Infrared ray controller can remote control the alarm point settings, zero calibration, and address modification.
Two-stage alarm with sound and light, and the alarm point is settable.
With self-calibration function, and three standard keys will be used to realize on-site maintenance.
Can output one or two on-off signals, can drive ventilator, solenoid valve or other external devices.

Specification

Model	CHN-GAS-H2S-A
Detection Principle	Electrochemistry
Gas	Hydrogen Sulfide (H₂S)
Range (Optional)	0 to 50 ppm, 0 to 100 ppm, 0 to 200 ppm
Resolution	0.01ppm, 0.1ppm or 1ppm (related to the selected range)
Accuracy	≤±3% F.S.
Responce Time	≤10s
Repeatability	≤±1%
Recovery Time	≤10s
Linearity Error	≤±1%
Zero Shift	≤±1% (F.S./year)
Signal Output (Optional) ^Note	4-20mA, or RS485 (transfer card included); Relay output: one group of relay output (1NO+1NC, 24V 100mA) for one alarm (default), or two groups of relay output (2NO+2NC, 24V 100mA) for high/low alarm (optional).
Alarms	Sound, light
Display	High light nixie tube display
Installation	Wall-mounted, piping type, flow-type (according to the detected environment)
Connection	G1/2 male thread explosion-proof flexible pipe
Operating Time	24h
Explosion-proof Grade	Ex d llC T6
Protection Grade	IP65
Certification	CE, ATEX
Working Voltage	12-36V DC
Case Material	Die-casting aluminum housing
Operating Temperature	-20℃~50℃
Operating Humidity	0~95%RH (non-condensing)
Dimension	20617990mm
Weight	≤1.6kg
Accessories	Power adapter: Input 100-240VAC 50/60Hz, Output 24VDC 2A (Optional USA plug & Europe plug)

Note: The output signal 4-20mA and RS485 CANNOT be used at the same time.

Fixed Gas Detector Dimension (Unit: mm)

Other Common Gases and Ranges Available for Fixed Gas Detector

Gas	Range (Default)	Range (Optional)	Resolution
Combustible/Flammable Gas (EX)	0-100% LEL	0-100% LEL	1%LEL
Oxygen (O2)	0-30% Vol	0-25% Vol	0.01%Vol
Carbon Monoxide (CO)	0-1000 ppm	0-100/500/1000/2000 ppm	0.01ppm/0.1ppm/1ppm
Methane (CH4)	0-100% LEL	0-100% LEL	1%LEL
Ammonia (NH3)	0-100 ppm	0-100/200/500/1000 ppm	0.01ppm/0.1ppm/1ppm
Chlorine (Cl2)	0-10 ppm	0-10/20/50/100 ppm	0.01ppm/0.1ppm
Hydrogen Chloride (HCL)	0-20 ppm	0-10/20/50/100 ppm	0.01ppm
Hydrogen (H2)	0-1000 ppm	0-1000/2000/5000/10000 ppm	0.1ppm/1ppm
Nitric Oxide (NO)	0-100 ppm	0-100/250/500/1000 ppm	0.01ppm/0.1ppm/1ppm
Nitrogen Dioxide (NO2)	0-20 ppm	0-20/50/100 ppm	0.01ppm/0.1ppm/1ppm
Formaldehyde (CH2O)	0-10 ppm	0-10/20/-50/100 ppm	0.01ppm/0.1ppm/1ppm
Ozone (O3)	0-10 ppm	0-1/5/10/20/50/100 ppm	0.001ppm/0.01ppm/0.1ppm
Carbon Dioxide (CO2)	0-2000 ppm	0-1000/2000/5000/10000/50000 ppm	0.1ppm/1ppm
Sulfur Dioxide (SO2)	0-20 ppm	0-10/20/100 ppm	0.01ppm/0.1ppm
Ethylene Oxide (ETO)	0-100 ppm	0-20/50/100/500/1000 ppm	0.01ppm/0.1ppm/1ppm
Phosphine (PH3)	0-10 ppm	0-10/20/50/100/200/500/1000 ppm	0.01ppm/0.1ppm/1ppm
Nitrogen (N2)	0-100% Vol	0-100% Vol	0.01%Vol
Hydrogen Fluoride (HF)	0-10 ppm	0-50 ppm	0.01ppm

* Some common gases and the measure ranges are listed in the above table. For more information, please feel free to contact us.

Tips: Installation of Fixed Hydrogen Sulfide (H2S) Detector

Fixed hydrogen sulfide (H2S) detector shall be installed in the areas which are easy to release and gather the hydrogen sulfide gas, such as the drilling site, downhole operation site, gathering station, natural gas evolution field, water treatment station and refinery area.

The mounting site of fixed-type H2S detector should be determined by on-site facilities, processes, and the diffusion and gathering of hydrogen sulfide gas.

The fixed hydrogen sulfide (H2S) detector should be installed below the release source, and it shall be within 2m outside and within 1m inside. Moreover, the detector is better to be installed at 0.5-0.6m away from the gas release source. The installation height shall be 0.3-0.6m higher than the ground or floor. If the detector is installed lower, it’s easy to be affected by the rain drops, which may damage the detector.

If possible, please select the gas detectors with concentration display and acousto-optic alarm. The operators can observe the existence of hydrogen sulfide gas on site without returning to the duty room to see the alarm controller. It is finally better to protect them.

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