Fixed Wireless Gas Detector

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

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!