Fixed Combustible Gas Detector, 0 to 100%LEL

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$526.67

Combustible gas detector is fixed to detect the flammable gas leakage and gives the alarm with sound and light. With real-time display and remote control, flammable gas detector is available with signal output 4-20mA and RS485, fast response and high accuracy.

Signal Output *
Relay Output *
Power Adapter *
Calibration Kit *

SKU: GD300-EX

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Overview
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Fixed combustible gas detector is 24-hour oneline to monitor the leakage of combustible gas 0 to 100% LEL, widely applied in the confined space, gas pipeline area, gas station, material spraying workshop, chemical industry, and other flammable and explosive gas storage area.

Features

Adopting high precision sensor for accurate gas leak detection.
Equipped with 3-wire system 4-20mA and RS485 output, relay 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	GD300-EX
Detection Principle	Catalytic Combustion
Gas	Combustible Gas (EX)
Range (Optional)	0 to 100% LEL
Resolution	1% LEL
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 and RS485 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 is the inlet and outlet for power and signal lines Pipe-mounted type: The installation thread size of the instrument is M45*P2.0
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: To measure confined spaces such as pipelines, please contact us and inform the detailed conditions of use.

Fixed Gas Detector Dimension (Unit: mm)

Other Common Gases and Ranges Available for Fixed Gas Detectors

Gas	Range (Default)	Range (Optional)	Resolution
Ammonia (NH3)	0-100 ppm	0-50/100/200/500/1000 ppm	0.01ppm/0.1ppm/1ppm
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
Hydrogen Sulfide (H2S)	0-100 ppm	0-50/100/500/1000 ppm	0.01ppm/0.1ppm/1ppm
Methane (CH4)	0-100% LEL	0-100% LEL	1%LEL
Chlorine (Cl2)	0-10 ppm	0-10/20/50/100 ppm	0.01ppm/0.1ppm
Ethylene (C2H4)	0-50 ppm	0-100/500/1000/2000 ppm	0.01ppm/0.1ppm/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
Hydrogen Cyanide (HCN)	0-10 ppm	0-10/20/50/100 ppm	0.01ppm/0.1ppm
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
Volatile Organic Compounds (VOC)	0-10 ppm	0-1/5/10/20/50/100/200/500/1000/2000/5000 ppm	0.001ppm/0.01ppm/0.1ppm/1ppm
Benzene (C6H6)	0-100 ppm	0-1/5/10/20/50/100/200/500/1000/2000/5000 ppm	0.001ppm/0.01ppm/0.1ppm/1ppm
Chlorine Dioxide (ClO2)	0-10 ppm	0-10/20/50/100 ppm	0.01ppm/0.1ppm

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

Details

Tips: Installation of Fixed Combustible Gas Detector

The combustible gas detector is used for flammable gas leak detection and alarming. When the combustible gas leaks and the detector monitors that the gas concentration reaches the set critical point, the flammable gas detector will sound an alarm to remind the staff of taking measures, to prevent explosions, fires, and poisoning accidents, thus ensuring safe production. Once fixed combustible gas detector is installed in place, its position is not easy to change. Therefore, something should be noted before installing the detector.

First of all, it is necessary to find out the place to be monitored where may be leaking points or prone to gas leakage, such as the interface of the pipeline, etc., and analyze the leakage pressure, direction and other factors.
It also needs to judge the direction of leakage of combustible gas when a large number of leakage occurs according to the air flow direction, wind direction and other specific factors on site.
According to the density of the leaked gas (greater or less than air) and the trend of air flow, the downstream position of the gas flow can be considered as the initial installation point.
Figure out the leakage state of the leak point, micro leak or spray-like leak. If it is micro leakage, the combustible gas detector should be installed closer to the leakage point. If the leakage is spray-like, it should be installed slightly away from the leak point.
The installation height of the outdoor gas detector can be selected according to the density of the measured gas. A very important thing to understand is that the detector should be installed on the downwind side.

Gas Detector Catalogue

ATO Gas Detector Catalog.pdf

Fixed Gas Detector User Manual

GD300 Series Fixed Gas Detector User Manual.pdf

Protocol of RS485 for Fixed Gas Detector.pdf

Calibration Procedures of Fixed Type Gas Detector.pdf

Basic Settings of Portable Gas Detector

This video will show you the basic settings of ATO portable gas detectors including high/low alarm setting, language setting and time setting.

Calibration of Portable Gas Detector

This video will show how to calibrate the ATO portable gas detectors.

Calibration of Fixed Type Gas Detector

This video will show the calibration procedures of the ATO fixed type gas detectors.

Existing reviews of Fixed Combustible Gas Detector, 0 to 100%LEL

Would this gas detector need to be protected against weather conditions?

The gas detector would be mounted outside in various conditions, would not be mounted to the gas skid, but be mounted on its own stand to compensate for wind direction when in operation. Oil and gas drilling and completions operations. Would this gas detector need to be protected against weather conditions?

From: Hahn | Date: 02/03/2023