High Temperature Combustible Gas Detector

High-temperature combustible gas detector, suitable for real-time and accurate detection of high-temperature combustible gas concentration and gas leakage in various environments. Adopting catalytic combustion sensor and microcontroller technology. Fast response speed and high measurement accuracy. It plays an early warning role in the safety of dangerous site operations.

★★★★★

  • Short delivery time
  • Better price
  • Customizable parameters

Features

  • CT6 explosion-proof grade, Explosion-proof wiring method is suitable for various hazardous places.
  • High-precision sensor;
  • No debugging required, power on and use;
  • Analog, digital, switch and other signal outputs;
  • NMP and other high-temperature gas monitoring;
  • Imported sensors have good anti-interference performance and a service life of more than 3 years.
  • Microprocessor technology, fast response speed, high measurement accuracy.
  • It has on-site sound and light alarm function, and the gas concentration exceeds the standard and alarms immediately.
  • Backlit large-screen LCD display, showing gas concentration/type/unit/working status, etc.
  • The sensor is easy to replace, and the replacement does not require on-site calibration. The key parameters of the sensor are automatically identified;
  • Full range temperature digital automatic tracking compensation to ensure measurement accuracy;
  • Full software automatic calibration, the sensor has up to 6 levels of target point calibration function;
  • And it has data recovery function;
  • PPM, %VOL, mg/m3 three concentration units can be switched freely;
  • Automatic protection function against high concentration gas shock;

Specifications

Model:1000-EX-GW
Detection gas:High temperature combustible gas
Detection range:0-100%LEL 0-5%VOL
Resolution:0.01%LEL
Display mode:LCD display
Temperature detection:Optional, temperature detection range: -40~250℃ (other high temperatures can be customized)
Detection method:Diffusion type
Installation method:Threaded installation/flange installation
Linear error:≤±1%
Zero drift:≤±1% (F.S/year)
Repeatability:≤±1%
Detection accuracy:≤±1%
Response time:≤3 seconds (T90)
Recovery time:≤3 seconds
Signal output:① 4-20mA signal: standard 16-bit precision 4-20mA output chip, transmission distance 1Km
② RS485 signal: using standard MODBUS RTU protocol, transmission distance 2Km
③ Voltage signal: 0-5V, 0-10V output, can be set by yourself
④ Pulse signal: also known as frequency signal, frequency range adjustable (optional)
⑤ Switching signal: standard 2 sets of relays, optional third set of relays, relay passive contacts, capacity 220VAC 3A/24VDC 3A
Transmission method:① Cable transmission: 3-core, 4-core cable, long-distance transmission (1-2 kilometers)
② GPRS transmission: can be internal GPRS module is installed to transmit data remotely in real time without distance restriction (optional)
Receiving device:User computer, control alarm, PLC, DCS, etc.
Alarm method:On-site sound and light alarm, external alarm, remote controller alarm, computer data acquisition software alarm, etc.
Alarm setting:Standard configuration of two-level alarm, optional three-level alarm; alarm mode can be set: conventional high and low alarm, interval control alarm
Electrical interface:3/4″NPT internal thread, 1/2″NPT internal thread, supports 2 types of electrical connection methods at the same time
Explosion-proof mark:ExdII CT6 (flameproof type)
Protection level:IP66
Working power supply:24VDC (12～30VDC)
Dimensions and weight:Customizable size
Standard accessories:Instruction manual, certificate of conformity
Shell material:Die-cast aluminum + sandblasting oxidation/fluorocarbon paint, explosion-proof and corrosion-resistant
Working temperature:-40~250℃ (other high temperatures can be customized)
Working humidity:≤95%RH, no condensation
Working pressure:86~100Kpa
Warranty period:1 year (sensor 1 year)

Featured Applications

1000-EX-GW Insert type combustible gas detector is widely used in high-temperature environments and high-temperature equipment such as ovens, production lines, ovens, reflow soldering, clean high-temperature chimney pipes, aging boxes, etc.

  • Applicable working conditions: high temperature pipelines such as coating machines
  • Pipeline temperature: -20℃~+250℃C
  • Pipeline humidity: ≤95%RH without condensation
  • Pipeline pressure: standard atmospheric pressure ±10%
  • Pipeline medium: non-corrosive gas, high boiling point solvent without silicone (such as NMP N-methylpyrrolidone)
  • Probe length: 400m (recommended insertion depth 250m)
  • Detection range: 0-100%LEL, can be customized according to needs
High Temperature Combustible Gas Detector Testing
High-Temperature-Combustible-Gas-Detector-with-Gas-Controller


We can also provide you with multi-channel gas controller. It is convenient to monitor and manage multiple gas detectors at the same time.

  • Screen size: 7-inch touch screen
  • Display channel: 4
  • Input voltage: 220V AC
  • Output voltage: 24V DC
  • Input signal: 4-20mA, RS485
  • Output signal: RS485, 4 groups of relays, total high and low alarm relays
  • Storage data: 1.8 million historical data, 5000 alarm data
  • Optional: can be expanded to up to 48 channels

Detectable Gases and Measuring Ranges

Detection gasRangeMaximum allowable errorMinimum readingResponse 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
I20-50ppm＜±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
C6H60-10ppm＜±3%(F.S)0.01ppm≤30 seconds
C6H60-100ppm＜±3%(F.S)0.01ppm≤30 seconds
C6H60-2000ppm＜±3%(F.S)1ppm≤30 seconds

This list is not exhaustive, please contact us for other media.

Technical Support

A combustible gas detector is a point-type gas detection device installed in explosive environments to monitor the concentration of one or more combustible gases. It converts the on-site combustible gas concentration into an electrical signal and transmits it to monitoring equipment located in a safe area to achieve the purpose of monitoring the on-site combustible gas concentration.

Combustible gases are substances that are ignitable and in a gaseous state at normal temperature and pressure. These include single-component gases such as hydrogen, carbon monoxide, and methane, as well as mixed gases such as liquefied petroleum gas and natural gas.

Combustion requires specific concentrations and ignition sources. For example, the explosive limits of liquefied petroleum gas are 1.5%-9.5%, while those of natural gas (primarily methane) are 5%-15%, and biogas contains 55%-70% methane, carbon dioxide, and other components.

Common flammable gases include:

  • Hydrogen (H2)
  • Carbon monoxide (CO)
  • Methane (CH4)
  • Ethane (C2H6)
  • Propane (C3H8)
  • Butane (C4H10)
  • Ethylene (C2H4)
  • Propylene (C3H6)
  • Butene (C4H8)
  • Acetylene (C2H2)
  • Propyne (C3H4)
  • Butyne (C4H6)
  • Hydrogen sulfide (H2S)
  • Phosphine (PH3)

When these gases mix with oxygen in air and reach a certain concentration, they can ignite or explode when exposed to an ignition source.

Combustible gas detectors primarily utilize catalytic combustion, semiconductor, and infrared principles.

Sino-Inst’s combustible gas detectors primarily utilize catalytic combustion sensors. Detection is achieved through the process of “heat generated by gas combustion → resistance change → concentration calculation.”

The sensor’s sensing element (coated with a platinum catalyst) and compensation element form a Wheatstone bridge circuit. When combustible gas contacts the sensing element, it burns under the action of the catalyst, generating heat that increases the resistance of the platinum wire. This imbalance in the bridge generates a current signal. The signal strength is proportional to the gas concentration.

Yes. Propane is a highly flammable and explosive gas, and conventional combustible gas detectors can detect propane.

Combustible gas detectors use internal gas sensors to convert detected gas concentration signals into electrical signals, which are then displayed on a display. These sensors are typically catalytic combustion type, capable of measuring the total combustible gas concentration in the environment.

Combustible gas detectors can detect not only propane but also other combustible gases, including methane, ethane, acetylene, methanol, ethylene, and others.

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High Temperature Combustible Gas Detector is a fixed high temperature resistant combustible gas detector developed and sold by our company. It can adapt to environments up to 250℃. The instrument is compatible with various control alarms, PLC, DCS and other control systems, and can simultaneously realize on-site alarms and remote monitoring and alarm functions.

Sino-Inst has been committed to the research, development, manufacturing and service of professional water quality analysis instruments and gas detection instruments. Our gas detectors are used in the fields of gas leakage and emission detection in chemical plants. They are deeply recognized and praised by users.

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