Fixed Wireless Gas Detector

Q: The difference between a gas detector and a gas analyzer

A gas detector is a simple, convenient, small instrument available in both portable and fixed models. It can be equipped with various probes (detectors) to measure different types of gases. A gas detector uses a probe that is directly exposed to the air being measured or the sample gas environment for detection. A gas analyzer, on the other hand, introduces the measured gas (sample gas) into the instrument through a special method for measurement and then vents it outside. When designing, selecting, and using a gas analyzer for testing, it is important to fully consider all internal and external factors that may affect the measurement. These factors must be carefully eliminated to ensure the accuracy and authenticity of the test data. Otherwise, improperly ignoring any influencing factor is unacceptable and unacceptable.

Q: what is lel on a gas detector?

In gas detectors, LEL stands for Lower Explosive Limit, or the lowest concentration by volume of a flammable gas in air that can cause an explosion. Specifically, LEL% indicates the minimum percentage of a flammable gas in air that can cause an explosion upon contact with an open flame. For example, the LEL for hydrogen is 4% Vol. This means that at a concentration of 4% in air, hydrogen will explode upon contact with an open flame.

Wireless-Gas-Detector-software-monitoring

1000-WX Wireless gas detector adds wireless transmission to the fixed gas detector. On-site application only needs to power the detector, no wiring is required. Using wireless signals such as GPRS, 4G, WIFI, LORA, ZigBee, etc., the on-site gas concentration signal can be transmitted to the rear monitoring room.

Gas sampling methods are optional: diffusion, pump suction, and pipeline. Wireless gas detectors are suitable for situations where the detector is far away from the control center and is used on-site or without network signals.

★★★★★

Short delivery time
Better price
Customizable parameters

Features

GPRS/4G, nRF, Zigbee, WIFI output, saving customers the trouble of wiring;
Explosion-proof design, explosion-proof mark is ExdⅡCT6Gb;
Large screen display, intuitively displaying gas concentration, type, unit, range, concentration column status diagram and other information;
Using arrow menu, zero adjustment, calibration, low alarm, high alarm, reset and other operations are intuitive and clear;
Can be equipped with remote control, no need to open the cover, simple operation;
Alarm information is richer: LCD alarm level display, LCD red backlight is on, sound and light alarm is turned on (optional);
The independent design of the gas chamber, combined with aerodynamics, can detect the target gas more quickly and accurately;
Full range temperature digital automatic tracking compensation to ensure measurement accuracy;
With data recovery function, there is no need to worry about misoperation;

Specifications

Detection gas	Combustible and toxic gases
Detection principle	Electrochemical, PID photoionization, infrared, catalytic combustion
Detection range	0-100PPM, 0-100%LEL, 0-100%VOL (Please consult for other ranges)
Resolution	Customizable
Working voltage	DC24V±6V
Shell material	Aluminum alloy
Detection method	Diffusion, pump suction, pipeline
Detection accuracy	±3%
Response time	<10S
Key point drift	±1%F.S/year
Working pressure	85~105KPa
Working temperature	-20~50°C
Sound and light alarm	Red LED, 85db
Explosion-proof grade	Exd II CT6 Gb
Wiring thread	M20*1.5 internal thread
Working current	<100mA
Display method	LCD display
Installation method	Wall-mounted, pipeline, column-mounted
Repeat accuracy	±3%
Linearity	±2%
Signal output	Zigbee, WIFI, GPRS, RF
Product life	2~5 years
Working humidity	10~95%RH non-condensing
Relay	3A@DC24V (optional)
Protection grade	IP65
Wiring wire	RVVP3*0.75mm2

How Does the Gas Detector Achieve Wireless Remote Transmission?

1. Overview of gas detector signal transmission

There are basically two data transmission methods at present, wired data transmission and wireless data transmission.

If wired data is transmitted, the technology is simple, mature and easy to implement. However, the construction and wiring workload is large, the network cable is easily damaged by human beings, and the fault point is not easy to find after the line is damaged.

If a wireless system is used, the construction is very simple, the system is easy to maintain, and the fault is easy to find. Therefore, wireless transmission will be used in many fields and is also the mainstream direction of future development.

2. Composition of gas detection instrument system

Different project details can be configured with different gas detection systems. For example, we Sino-Inst provide harmful gas concentration monitoring for tunnel projects. The main monitored gas types are sulfur dioxide, methane, carbon monoxide, oxygen, and ammonia.

The wireless signal module configured in the instrument itself can achieve a wireless data transmission distance of 3-4 kilometers. However, with the different working conditions and curves of the tunnel, a signal repeater may need to be configured. Depending on the specific length of the tunnel, 1-2 signal repeaters are configured.

Due to the long transmission distance, a combination of wireless GPRS network transmission and spread spectrum technology is used. A monitoring terminal is set up in the environmental protection control room. A set of centralized monitoring software is provided.

The system consists of the following:

1. Real-time monitoring of front-end toxic gas detectors (mainly ammonia detectors, oxygen detectors, and hydrogen sulfide detectors).

2. The detector RS485 modbus signal output is wirelessly sent to the receiving module at the tunnel entrance through the embedded wireless RF module, and the long-distance GPRS network module is connected to the wireless receiving module to connect to the control room for wireless seamless transmission monitoring.

3. Control center: a set of monitoring computers (or the user’s existing computer is used as the monitoring host).

4. A set of data acquisition software.

Fixed Wireless Gas Detector Detectable Gases and Measuring Ranges

Detection gas	Range	Maximum allowable error	Minimum reading	Response time T90
Combustible gas (EX)	0-100%LEL	＜±3%(F.S)	0.1%LEL	≤10 seconds
Combustible gas (EX)	0-100%Vol	＜±3%(F.S)	0.1%Vol	≤10 seconds
Methane (CH4)	0-100%LEL	＜±3%(F.S)	0.1%LEL	≤10 seconds
Methane (CH4)	0-100%Vol	＜±3%(F.S)	0.1%Vol	≤10 seconds
Oxygen (O2)	0-30%Vol	＜±3%(F.S)	0.01%Vol	≤10 seconds
Oxygen (O2)	0-100%Vol	＜±3%(F.S)	0.01%Vol	≤10 seconds
Oxygen (O2)	0-5000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Nitrogen (N2)	0-100%Vol	＜±3%(F.S)	0.01%Vol	≤10 seconds
Carbon monoxide (CO)	0-100ppm	＜±3%(F.S)	0.1ppm	≤25 seconds
Carbon monoxide (CO)	0-1000ppm	＜±3%(F.S)	0.1ppm	≤25 seconds
Carbon monoxide (CO)	0-2000ppm	＜±3%(F.S)	0.1ppm	≤25 seconds
Carbon monoxide (CO)	0-20000ppm	＜±3%(F.S)	1ppm	≤25 seconds
Carbon monoxide (CO)	0-100000ppm	＜±3%(F.S)	1ppm	≤20 seconds
Carbon dioxide (CO2)	0-500ppm	＜±3%(F.S)	1ppm	≤20 seconds
Carbon dioxide (CO2)	0-2000ppm	＜±3%(F.S)	1ppm	≤20 seconds
Carbon dioxide (CO2)	0-5000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Carbon dioxide (CO2)	0-50000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Carbon dioxide (CO2)	0-20%Vol	＜±3%(F.S)	0.01%Vol	≤30 seconds
Carbon dioxide (CO2)	0-100%Vol	＜±3%(F.S)	0.01%Vol	≤30 seconds
Carbon dioxide (CO2)	0-10ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Formaldehyde (CH2O)	0-10ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Formaldehyde (CH2O)	0-100ppm	＜±3%(F.S)	0.01ppm	≤45 seconds
Formaldehyde (CH2O)	0-1000ppm	＜±3%(F.S)	1ppm	≤20 seconds
Ozone (O3)	0-1ppm	＜±3%(F.S)	0.001ppm	≤20 seconds
Ozone (O3)	0-5ppm	＜±3%(F.S)	0.001ppm	≤20 seconds
Ozone (O3)	0-50ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Ozone (O3)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Ozone (O3)	0-2000ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Ozone (O3)	0-30000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Ozone (O3)	0-20mg/L	＜±3%(F.S)	0.01mg/L	≤30 seconds
Ozone water (O3)	0-20mg/L	＜±3%(F.S)	0.01mg/L	≤30 seconds
Hydrogen sulfide (H2S)	0-10ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Hydrogen sulfide (H2S)	0-50ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Hydrogen sulfide (H2S)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Hydrogen sulfide (H2S)	0-2000ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Hydrogen sulfide (H2S)	0-10000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Sulfur dioxide (SO2)	0-10ppm	＜±3%(F.S)	0.001ppm	≤45 seconds
Sulfur dioxide (SO2)	0-20ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Sulfur dioxide (SO2)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Sulfur dioxide (SO2)	0-500ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Sulfur dioxide (SO2)	0-2000ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Sulfur dioxide (SO2)	0-10000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Nitrogen monoxide (NO)	0-10ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Nitrogen monoxide (NO)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Nitrogen monoxide (NO)	0-2000ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Nitrogen dioxide (NO2)	0-5000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Nitrogen dioxide (NO2)	0-10ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Nitrogen dioxide (NO2)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Nitrogen dioxide (NO2)	0-1000ppm	＜±3%(F.S)	0.1ppm	≤25 seconds
Nitrogen dioxide (NO2)	0-5000ppm	＜±3%(F.S)	1ppm	≤25 seconds
Nitrogen dioxide (NO2)	0-10ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Nitrogen oxides (NOX)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Nitrogen oxides (NOX)	0-2000ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Nitrogen oxides (NOX)	0-5000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Chlorine (CL2)	0-10ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Chlorine (CL2)	0-20ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Chlorine (CL2)	0-200ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Chlorine (CL2)	0-2000ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Ammonia (NH3)	0-50ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Ammonia (NH3)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Ammonia (NH3)	0-1000ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Ammonia (NH3)	0-5000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Ammonia (NH3)	0-100%LEL	＜±3%(F.S)	0.1%LEL	≤30 seconds
Hydrogen (H2)	0-100%LEL	＜±3%(F.S)	0.1%LEL	≤30 seconds
Hydrogen (H2)	0-1000ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Hydrogen (H2)	0-20000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Hydrogen (H2)	0-40000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Hydrogen (H2)	0-100%Vol	＜±3%(F.S)	0.01%Vol	≤30 seconds
Helium (He)	0-100%Vol	＜±3%(F.S)	0.01%Vol	≤10 seconds
Argon (Ar)	0-100%Vol	＜±3%(F.S)	0.01%Vol	≤10 seconds
Xenon (Xe)	0-100%Vol	＜±3%(F.S)	0.01%Vol	≤30 seconds
Hydrogen cyanide (HCN)	0-30ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Hydrogen cyanide (HCN)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Hydrogen chloride (HCL)	0-20ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Hydrogen chloride (HCL)	0-200ppm	＜±3%(F.S)	0.1ppm	≤20 seconds
Phosphine (PH3)	0-5ppm	＜±3%(F.S)	0.001ppm	≤20 seconds
Phosphine (PH3)	0-25ppm	＜±3%(F.S)	0.01ppm	≤20 seconds
Phosphine (PH3)	0-2000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Chlorine dioxide (CLO2)	0-1ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Chlorine dioxide (CLO2)	0-10ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Chlorine dioxide (CLO2)	0-200ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Ethylene oxide (ETO)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Ethylene oxide (ETO)	0-1000ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Ethylene oxide (ETO)	0-100%LEL	＜±3%(F.S)	1%LEL	≤30 seconds
Phosgene (COCL2)	0-1ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Phosgene (COCL2)	0-50ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Silane (SiH4)	0-1ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Silane (SiH4)	0-50ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Fluorine (F2)	0-1ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Fluorine (F2)	0-10ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Fluorine (F2)	0-50ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Hydrogen fluoride (HF)	0-10ppm	＜±3%(F.S)	0.01ppm	≤20 seconds
Hydrogen fluoride (HF)	0-50ppm	＜±3%(F.S)	0.01ppm	≤20 seconds
Hydrogen bromide (HBr)	0-50ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Diborane (B2H6)	0-10ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Arsine (AsH3)	0-1ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Arsine (AsH3)	0-10ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Arsine (AsH3)	0-50ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Germane (GeH4)	0-2ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Germane (GeH4)	0-20ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Hydrazine (N2H4)	0-1ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Hydrazine (N2H4)	0-300ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Tetrahydrothiophene (THT)	0-100mg/m3	＜±3%(F.S)	0.01mg/m3	≤30 seconds
Bromine (Br2)	0-10ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Bromine (Br2)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Bromine (Br2)	0-2000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Acetylene (C2H2)	0-100%LEL	＜±3%(F.S)	0.1%LEL	≤30 seconds
Acetylene (C2H2)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Acetylene (C2H2)	0-1000ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Ethylene (C2H4)	0-100%LEL	＜±3%(F.S)	0.1%LEL	≤30 seconds
Ethylene (C2H4)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Ethylene (C2H4)	0-2000ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Acetaldehyde (C2H4O)	0-10ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Ethanol (C2H6O)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Ethanol (C2H6O)	0-2000ppm	＜±3%(F.S)	1ppm	≤60 seconds
Methanol (CH6O)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Methanol (CH6O)	0-2000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Carbon disulfide (CS2)	0-50ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Carbon disulfide (CS2)	0-5000ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Acrylonitrile (C3H3N)	0-50ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Acrylonitrile (C3H3N)	0-2000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Methylamine (CH5N)	0-50ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
I2	0-50ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Styrene (C8H8)	0-200ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Styrene (C8H8)	0-5000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Vinyl chloride (C2H3CL)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Trichloroethylene (C2HCL3)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Tetrachloroethylene (C2CL4)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Laughing gas (N2O)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Nitrogen trifluoride (NF3)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Hydrogen peroxide (H2O2)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Sulfuryl fluoride (SO2F2)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Sulfuryl fluoride (SO2F2)	0-30000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Sulfuryl fluoride (SO2F2)	0-200g/m3	＜±3%(F.S)	0.1g/m3	≤30 seconds
Sulfuryl fluoride (SO2F2)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Sulfuryl fluoride (SO2F2)	0-5000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Sulfuryl fluoride (SO2F2)	0-10000ppm	＜±3%(F.S)	1ppm	≤30 seconds
C6H6	0-10ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
C6H6	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
C6H6	0-2000ppm	＜±3%(F.S)	1ppm	≤30 seconds

Technical Support

A gas detector is a simple, convenient, small instrument available in both portable and fixed models. It can be equipped with various probes (detectors) to measure different types of gases.
A gas detector uses a probe that is directly exposed to the air being measured or the sample gas environment for detection. A gas analyzer, on the other hand, introduces the measured gas (sample gas) into the instrument through a special method for measurement and then vents it outside.
When designing, selecting, and using a gas analyzer for testing, it is important to fully consider all internal and external factors that may affect the measurement. These factors must be carefully eliminated to ensure the accuracy and authenticity of the test data. Otherwise, improperly ignoring any influencing factor is unacceptable and unacceptable.

In gas detectors, LEL stands for Lower Explosive Limit, or the lowest concentration by volume of a flammable gas in air that can cause an explosion. Specifically, LEL% indicates the minimum percentage of a flammable gas in air that can cause an explosion upon contact with an open flame.

For example, the LEL for hydrogen is 4% Vol. This means that at a concentration of 4% in air, hydrogen will explode upon contact with an open flame.

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Wireless gas detectors are widely used in petroleum and petrochemical, chemical plants, smelters, steel mills, pharmaceutical production workshops, tobacco companies, environmental monitoring, industrial gas process control, gas stations, underground gas pipeline maintenance, indoor air quality detection, safety protection in hazardous areas, aerospace, military equipment monitoring, etc.

1000-WX Wireless gas detector realizes the demand for wireless gas detection, eliminating the trouble of complex wiring for customers. After installation and debugging, you can directly read the detection value in the IoT platform, view the gas detection status, generate historical curves, and analyze the gas detection value.

If you need to perform gas concentration, gas leakage and other detections, please feel free to contact our sales engineer!

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Features

Specifications

How Does the Gas Detector Achieve Wireless Remote Transmission?

1. Overview of gas detector signal transmission

2. Composition of gas detection instrument system

Fixed Wireless Gas Detector Detectable Gases and Measuring Ranges

Technical Support

The difference between a gas detector and a gas analyzer

what is lel on a gas detector?

Related Products

Resources

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