Fixed Dust Detector GT-H20
The industrial-grade online dust monitoring equipment, which adopts laser scattering core technology, is designed for dust-hazardous locations in zones 20/21/22. It enables continuous and accurate 24-hour monitoring of dust concentration, graded early warning, and remote data management, ensuring industrial production safety and occupational health compliance.
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High precision
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OEM/ODM
- Features
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- Gases and Ranges
The fixed dust detector is an industrial-grade online monitoring device that uses laser scattering technology. It is specially designed for high-risk industries with dust explosion risks and occupational health hazards. It solves the core pain points of traditional dust monitoring such as "low accuracy, slow response and poor environmental adaptability". It can achieve 24-hour continuous and accurate monitoring of dust concentration, graded early warning of exceeding threshold and remote data traceability. It is an essential core device for industrial safety production, occupational health protection and environmental compliance.
1.Ensure the health and safety of personnel
By monitoring the concentration of dust and harmful gases (such as CO and HS) in the air in real time, the equipment can give an alarm immediately when the concentration exceeds the standard. This can effectively prevent the occurrence of occupational diseases such as pneumoconiosis, and avoid fire and explosion accidents caused by high concentration of combustible dust or gas, and provide vital safety guarantee for field personnel.
2.Realizes real-time continuous monitoring.
Different from the traditional portable or manual sampling detection, the fixed dust gas detector can provide uninterrupted monitoring for 7x24 hours. This continuous data flow can help managers find abnormal concentration changes in time and provide reliable and dynamic basis for production process control and safety management.
3.Quick response, convenient installation and maintenance
The equipment is in direct contact with the measured medium, which avoids sampling delay and has extremely fast response speed, and the typical response time can reach 1-3 seconds. At the same time, many modern detectors adopt plug-in or modular design, which does not need complicated sampling pipeline system during installation, and supports plug-and-play and automatic calibration of sensors, greatly reducing the difficulty and cost of installation and maintenance.
4.Adapt to harsh industrial environment
Specially designed for harsh working conditions, with strong environmental adaptability. Many models have high-grade explosion-proof certification (such as Exd IIC T6) and protection grade (such as IP66/IP67), which can withstand harsh environments such as high temperature, high pressure, high humidity and strong corrosion, and ensure long-term stable operation in steel, chemical, mining and other industries.
5.Intelligent management and data traceability
Modern detectors integrate a wealth of intelligent functions. They are usually equipped with data recording and storage functions, and support uploading data to the monitoring platform through RS485, 4-20mA or wireless. Managers can remotely view real-time data, analyze historical trends and receive alarm information, thus realizing intelligent safety management from passive response to active prevention.
Fixed dust detector GT-H20
Solution of industrial dust monitoring
The fixed dust detector GT-H20 is a professional equipment for continuous monitoring of dust concentration in industrial environment, which can detect particles in the air in real time. The equipment is widely used in industrial sites with high dust and safety risks or environmental protection requirements to help enterprises achieve stable and reliable dust monitoring.
With stable performance, fast response and reliable data output, GT-H20 can continuously monitor dust changes, providing strong support for safe production and environmental compliance.
principle of operation
GT-H20 adopts advanced light scattering detection technology for real-time measurement of dust concentration in the air.
The working process is as follows:
- A built-in laser or infrared light source emits a detection beam into the airflow.
- Dust particles in the air scatter light.
- The optical sensor receives the scattered signal and analyzes it.
- The system converts the signal into real-time dust concentration value.
- The data can be displayed in real time and uploaded to the monitoring system (if it has communication function).
When the dust concentration exceeds the preset safety threshold, the equipment will immediately trigger an alarm prompt to remind the field personnel to deal with it in time.
This detection method has the characteristics of strong continuity and high stability, and is suitable for long-term operation in complex industrial environment.
Product features and advantages
High precision dust detection
Using the principle of light scattering, accurate real-time monitoring of dust concentration can be realized.
24 hours continuous operation
Support all-weather online monitoring to grasp the changes of air dust in real time.
Fast response speed
It can quickly capture the fluctuation of dust concentration and effectively reduce dust explosion and occupational health risks.
Industrial reliability
It has good anti-interference ability and is suitable for high temperature, dust and complex industrial environment.
Data display and output function
Support local digital display, and optional remote data transmission function to realize centralized management.
Multi-level alarm mechanism
The alarm threshold can be set according to the demand, and when it exceeds the standard, it will automatically trigger the acousto-optic or relay alarm output.
Low maintenance operation
Optical detection components have long service life, stable structure and low daily maintenance cost.
Application industry
Cement and building materials industry
Used for dust monitoring in production, crushing, grinding and material conveying.
Mining industry
It is suitable for monitoring dust concentration in underground and open-pit mining areas.
electricity industry
Used for coal transportation, ash treatment and dust monitoring in fuel system.
Metallurgical industry
Suitable for high dust environment such as smelting, casting and metal processing.
chemical lines
Used for powder raw material treatment and dust control in production process.
Food and pharmaceutical industry
Ensure a clean production environment and monitor air particulate pollutants.
Environmental monitoring field
Used for industrial emission monitoring and air quality detection in working environment.
Reasons for choosing GT-H20
Compared with the traditional intermittent sampling detection method, GT-H20 can realize continuous online monitoring, avoid data blind areas and improve safety management efficiency.
Its optical detection technology ensures the accuracy and stability of measurement, and the industrial structure design enables the equipment to run stably in harsh working conditions for a long time.
Single Gas Detec
- Detected Medium: Dust Particulates
- Detection Principle: Laser ScatteringPrnciple
- Detection Mode: Diffusion type
- MeasuringRange: 0-1000 ug/m³, 0-1000 mg/m³
- Relative Standard Deviation: ≤ 15%
- Response Time: <30 s(T90)
- Alarm Method: Audible and visual alarm, status indicator, relay output signal
- Power Supply: DC 24V+12V
- Output Signal: 4-20mA、RS485
- Transmission Distance: <1000m
- OperatingTemperature: -20℃-+55℃
- Relative Humidity: ≤95% (non-condensing)
- Explosion-Proof Rating: ll 2G Ex db lIC T6 Gb
- Protection Rating: IP66
- Dimensions: 205*77*161mm
- Product Weight: 2000g
- Connection Thread: M20x1.5 0r G112
- Mounting Method: Wall-mounted
LED Display Screen(Optional, not required):
This gas concentration monitoring display screen features a dual-color display and connects to the host computer via RS485 protocol. It is primarily used to display real-time concentration data for various gases. The font colors differ between alarm and normal states. Normal state text is blue, while alarm state text is red.
Mounting Bracket(Optional selection):
High-strength metal mounting brackets are specifically designed for mounting gas monitors and actuators, and are typically used for wall-mounted installations.
Calibration Hood(Optional selection):
This is a standard calibration cover specially designed for HIREP series fixed gas detectors, which is used for fast and accurate gas concentration calibration and sensor testing on the equipment site. It has simple structure and good sealing performance, which ensures that the gas can evenly cover the sensor probe during calibration and avoid external interference.
Sampling Tube(Optional):
The sampling tube is made of polytetrafluoroethylene (PTFE), which is resistant to high temperatures and corrosion. It is usually used in conjunction with an external pump to safely and stably deliver the gas to be tested in the environment to the sensor analysis unit. It is suitable for remote sampling, detection in confined spaces, or gas monitoring under complex working conditions.
Explosion-Proof Cable Gland(Optional):
Used for the safe wiring connection of fixed gas detector, alarm host or electrical equipment in explosive environment. Its structure conforms to international explosion-proof standards, ensuring reliable sealing and electrical isolation in flammable and explosive gas environment and preventing accidents caused by sparks or high temperature.
Rain cover(Optional):
Prevents rainwater, dew, and spray water from entering the detector housing, circuitry, and sensor cavity, preventing short circuits due to moisture on the circuit board, reducing rainwater corrosion, and minimizing aging damage to the detector housing and probe caused by ultraviolet radiation. Significantly improves equipment durability, especially suitable for outdoor, open-air, and factory outdoor installation scenarios.
| Name | Chemical Formula | Lower Explosive Limit(Volume Fraction)in Air%VOL|Lower Limit | Serial No | Name | Chemical Formula | Lower Explosive Limit(Volume Fraction)in Air%VOL|Lower Limit | |
| 1 | Ethane | C₂H₆ | 3.0 | 49 | Cyclohexane | CH₂ (CH₂)₄CH₂ | 1.2 |
| 2 | Ethanol | C₂H₅OH | 3.4 | 50 | Cyclohexanol | CH₂ (CH₂)₃CHOHCH₂ | 1.2 |
| 3 | Ethylene | C₂H₄ | 2.8 | 51 | Cyclohexanone | CH₂ (CH₂)₃COCH₂ | 2.8 |
| 4 | Hydrogen | H₂ | 4.0 | 52 | Cyclopropane | CH₂CH₂CH₂ | 2.4 |
| 5 | Methane | CH₄ | 5.0 | 53 | Decane | C₁₀H₁8 | 0.7 |
| 6 | Methanol | CH₃OH | 5.5 | 54 | Cyclohexene | CH₂ (CH₂)₃CHCHCH₂ | 1.2 |
| 7 | Acetylene | C₂H₂ | 2.5 | 55 | Diacetone Alcohol | (CH₃)₂COHCH₂COCH₃ | 1.8 |
| 8 | Propanol | C₃H₇OH | 2.5 | 56 | Di-n-butyl Ether | C₄H₉OC₄H₉ | 0.9 |
| 9 | Propane | C₃H₈ | 2.2 | 57 | Dichlorobenzene | (C₆H₄)Cl₂ | 2.2 |
| 10 | Propylene | C₃H₆ | 2.4 | 58 | Diethylamine | (C₂H₅)₂NH | 1.7 |
| 11 | Toluene | C₆H₅CH₃ | 1.2 | 59 | Dimethylamine | (CH₃)₂NH | 2.8 |
| 12 | Xylene | C₆H₄ (CH₃)₂ | 1.0 | 60 | Dimethylaniline | (CH₃)₂C₆H₃NH₂ | 1.2 |
| 13 | Dichloromethane | C₂H₄Cl₂ | 5.6 | 61 | Dicyclohexylamine | (CH₂)₄O₂ | 1.9 |
| 14 | Dichloroethylene | C₂H₂Cl₂ | 6.5 | 62 | Ethylene Oxide | OCH₂CH₂CH₂ | 1.9 |
| 15 | Dichloropropane | C₃H₆Cl₂ | 3.4 | 63 | Diethyl Ether | C₂H₅OC₂H₅ | 1.8 |
| 16 | Diethyl Ether | C₂H₅OC₂H₅ | 1.7 | 64 | Ethyl Acetate | CH₃COOC₂H₅ | 2.1 |
| 17 | Dimethyl Ether | CH₃OCH₃ | 3.0 | 65 | Ethyl Acrylate | CH₂CHCO₂C₂H₅ | 1.7 |
| 18 | Formaldehyde | CH₂OCH | 4.0 | 66 | Styrene | C₆H₅C₂H₃ | 1.0 |
| 19 | Acetic Acid | CH₃COOH | 4.0 | 67 | Ethylene Oxide | CH₂CH₂O | 2.6 |
| 20 | Acetone | CH₃COCH₃ | 2.3 | 68 | Ethanethiol | C₂H₅SH | 2.3 |
| 21 | Acetyl Chloride | (CH₃CO)₂CH₂ | 1.7 | 69 | Ethyl Mercaptan | C₂H₅SCH₃ | 2.0 |
| 22 | Chloroform | CH₃COCl | 5.0 | 70 | Methyl Ethyl Ketone | C₃H₇COCH₃ | 1.8 |
| 23 | Acrylonitrile | CH₂CHCN | 2.8 | 71 | Ethylamine | C₂H₅NH₂ | 3.5 |
| 24 | Allyl Chloride | CH₂CHCH₂Cl | 3.2 | 72 | Gasoline | — | 0.9 |
| 25 | Methylacetylene | CH₃CCH | 1.7 | 73 | Kerosene | — | 0.7 |
| 26 | Amyl Acetate | CH₃CO₂C₅H₁1 | 1.0 | 74 | Turpentine | — | 1.8 |
| 27 | Aniline | C₆H₅NH₂ | 1.2 | 75 | Nitrobenzene | C₆H₅NO₂ | 1.8 |
| 28 | Benzene | C₆H₆ | 1.2 | 76 | Nitromethane | CH₃NO₂ | 7.1 |
| 29 | Benzaldehyde | C₆H₅CHO | 1.4 | 77 | Phenol | C₆H₅OH | 1.3 |
| 30 | Benzyl Chloride | C₆H₅CH₂Cl | 1.1 | 78 | Phenylacetylene | C₆H₅C₂H | 1.1 |
| 31 | Bromobenzene | C₆H₅CH₂Br | 2.5 | 79 | Ethylbenzene | C₆H₄C₂H₅ | 1.0 |
| 32 | Bromoethane | CH₃CH₂Br | 6.7 | 80 | Methyl Formate | HCOOC₂H₅ | 2.7 |
| 33 | Butadiene | CH₂CHCHCH₂ | 2.0 | 81 | p-Dioxane | C₄H₈O₂ | 2.0 |
| 34 | Butane | C₄H₁0 | 1.9 | 82 | Isobutane | i-C₄H₁0 | 1.8 |
| 35 | Butanol | C₄H₉OH | 1.8 | 83 | Naphthalene | C₁₀H₈ | 1.9 |
| 36 | Butylene | C₄H₈ | 1.6 | 84 | Nonane | CH₃ (CH₂)₇CH₃ | 0.7 |
| 37 | Butyraldehyde | C₃H₇CHO | 1.4 | 85 | Nonanol | CH₃ (CH₂)₇CH₂OH | 0.8 |
| 38 | Butyl Butyrate | C₃H₇COOC₄H₉ | 1.2 | 86 | Valeraldehyde | C₆H₁₀0 | 1.2 |
| 39 | Butyl Methyl Ketone | C₄H₉COCH₃ | 1.2 | 87 | Pentane | C₅H₁2 | 1.4 |
| 40 | Carbon Disulfide | CS₂ | 1.0 | 88 | Pentanol | C₅H₁₁OH | 1.2 |
| 41 | Chlorobenzene | C₆H₅Cl | 1.3 | 89 | Propylamine | C₃H₇NH₂ | 2.0 |
| 42 | Chlorobutane | C₄H₉CH₂Cl | 1.8 | 90 | Propyl Methyl Ketone | C₄H₉COCH₃ | 1.5 |
| 43 | Chloroethane | CH₃CH₂Cl | 3.8 | 91 | Pyridine | C₅H₅N | 1.7 |
| 44 | Chloroethylene | CH₂CHCl | 3.8 | 92 | Tetrahydrofuran | C₄H₈O | 2.0 |
| 45 | Chloromethane | CH₃Cl | 8.1 | 93 | Tetrahydrofurfuryl | C₅H₁₀O₂ | 1.5 |
| 46 | 2-Chloropropane | CH₃CHCICH₃ | 2.6 | 94 | Triethylamine | (C₂H₅)₃N | 1.2 |
| 47 | Cresol | C₆H₄OH | 1.1 | 95 | Trimethylamine | (CH₃)₃N | 2.0 |
| 48 | Cyclobutane | CH₂CH₂CH₂CH₂ | 1.8 | 96 | Trioxane | (CH₂O)₃ | 3.0 |
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