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E-mail
3156771459@qq.com
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Phone
15914254672/15920978940
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Address
6th Floor, No. 47 Baohua Road, Huadu District, Guangzhou City
Guangzhou Ruibin Technology Co., Ltd
3156771459@qq.com
15914254672/15920978940
6th Floor, No. 47 Baohua Road, Huadu District, Guangzhou City

Brief introduction
The GD104K diffusion type toxic and harmful gas detector is a mobile and fast composite gas detector for detecting gas concentration. It can simultaneously detect up to 1-4 gases and has a large capacity data storage function. Using a 2.31-inch high-definition color screen to display concentration in real time, we have selected gas sensors from imported brands such as Honeywell, Nippon Genshin, CITY, Alpha, Dynament, and Membrapor. The main detection principles include electrochemical, infrared, catalytic combustion, thermal conductivity, and PID photoionization.
2、 Main features
1. Waterproof, dustproof, explosion-proof, shockproof, intrinsically safe circuit design, anti-static, anti electromagnetic dry.
2. Protection level IP65.
3. The 2.31-inch high-definition color screen displays real-time information such as concentration, alarm, time, temperature, humidity, storage, communication, battery level, charging status, etc. The menu interface uses high-definition simulation icons to display the function names of each menu.
4. Large capacity data storage function, supporting real-time storage, timed storage, or only storing alarm concentration data and time. It supports local viewing and deletion of data, and can also upload data to a computer through a USB interface for analysis, storage, and printing using upper computer software.
5. USB charging interface, overcharge, overdischarge, overvoltage, short circuit, overheating protection, 5-level accurate power display
6. Adopting a 3000mAh rechargeable polymer battery, it can work continuously for a long time.
7. Sound and light alarm, vibration alarm, visual alarm, undervoltage alarm, fault alarm, and shutdown alarm.
8. The alarm value can be set, and the alarm mode can be selected as low alarm, high alarm, or interval alarm.
9. Optional simultaneous detection of 1-4 gases, units can be freely switched: PPM, mg/m3, Vol%, LEL%, PPHM, ppb, mg/L
10. Three display modes can be switched: simultaneous display of four gas concentrations, large font cyclic display of single channel gas concentration, real-time curve, automatic or manual cycling between channels can be switched, whether to display maximum value, minimum value, gas name, and view historical records.
11. The Chinese and English interfaces are selectable, with the default Chinese interface.
12. Data recovery function.
13. Zero point automatic tracking, long-term use is not affected by zero drift.
14. Multi level calibration.
15. Automatically identify and prevent concentration calibration errors.
16. RS485 communication can be optionally selected.
17. Optional environmental temperature and humidity measurement function, more other functions or communication interfaces can be customized.
3、 Technical parameters
| Detect gas | Toxic gases, oxygen, carbon dioxide, flammable and explosive gases, TVOC, etc, 1 to 4 gases can be freely combined. Optional: Temperature and humidity measurement. Please refer to the quotation parameters for specific details |
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| Application scenarios | All occasions that require portable and rapid detection of gas concentration, such as petroleum, chemical, pharmaceutical, environmental protection, gas distribution, warehousing, flue gas analysis, air treatment, etc. Please refer to the quotation parameters for specific details |
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| detection range | 0~1、10、100、1000、5000、50000、100000ppm、 200mg/L, 100% LEL, 20%, 50%, 100% Vol are optional, and other ranges can be customized. Please refer to the quotation parameters for specific details |
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| Resolution | 0.01ppm or 0.001ppm (0-10ppm); 0.01ppm (0-100ppm), 0.1ppm (0-1000ppm), 1ppm (above 0-1000ppm), 0.01 milligrams per liter (0-200% milligrams per liter) 0.1%LEL、 0.01%Vol、0.001%Vol。 Please refer to the quotation parameters for specific details |
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| Detection Principle | Electrochemical, catalytic combustion, infrared, thermal conductivity, PID photoionization, etc., depending on gas type, range, on-site environment, and user requirements. Please refer to the quotation parameters for specific details |
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| Maximum allowable error value | ≤± 3% F.S (higher precision can be customized) | ||||
| Linearity | ≤±2% | Repeatability | ≤±2% | Uncertainty | ≤±2% |
| response time | T90 ≤ 30 seconds | recovery time | ≤ 30 seconds | ||
| Unit switching | Units can be freely switched. Conventional gases do not require input of molecular weight, while special gases require input of molecular weight to automatically calculate and switch. Units can be selected: PPM, mg/m3, Vol%, LEL%, PPHM, ppb, mg/L. | ||||
| work environment | Temperature: -40 ℃~+70 ℃, humidity: ≤ 10~95% RH | ||||
| Working power supply | 3.7VDC, 2100mAh high-capacity rechargeable polymer battery | ||||
| Display mode | 2.31-inch high-definition color screen | ||||
| detection | Diffusion measurement. Calibrated flow rate of 500 milliliters per minute | ||||
| Alarm method | Sound and light alarm, vibration alarm, sound and light+vibration alarm, and alarm shutdown can be set | ||||
| communication interface | USB (charging and communication), with charging protection function, supports USB hot plugging | ||||
| Data Storage | Standard large capacity data storage. | ||||
| protection grade | IP65 | ||||
| Explosion proof type | Intrinsically Safe | ||||
| Execution standards | GB 15322.3-2019 "Portable Combustible Gas Sensors with Measurement Range of 0-100% LEL" GB 3836.1-2010 General Requirements for Electrical Equipment Used in Explosive Gas Environments GB 3836.4-2010 "Inherent Safety Type 'i' of Electrical Equipment for Explosive Gas Environments" |
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| External dimensions | 130×68×34mm(L×W×H) | ||||
| Weight | 200g (slightly different depending on gas combination) | ||||
| Standard accessory | Instruction manual, certificate of conformity, warranty card, USB charger (including data cable), packaging box, back clip, calibration cover | ||||
| optional function | Signal output: RS485 signal output Environmental temperature and humidity detection: temperature -40 ℃~+70 ℃, accuracy 0.5 ℃; Humidity 0-100% RH, accuracy 3% RH Wireless data transmission: RoLa module, Bluetooth module, WiFi module, 443M module, Zig Bee module (interconnection; free computer software/cloud platform/mobile APP remote monitoring data) Storage function: Optional 16GB or larger capacity SD card storage |
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Partial detectable gas list
| Detect gas | range |
| Gaseous EX | 0-100%LEL、0-100%Vol |
| Methane CH4 | 0-100%LEL、0-100%Vol、0-1000ppm、0-10000ppm |
| Oxygen O2 | 0-30%Vol、0-100%Vol |
| Nitrogen N2 | 0-100%Vol |
| Carbon monoxide CO | 0-100ppm、0-1000ppm |
| Carbon dioxide CO2 | 0-500ppm、0-2000ppm、0-5000ppm、0-50000ppm、0-20%Vol、0-100%Vol |
| Formaldehyde CH2O | 0-10ppm、0-100ppm、0-1000ppm |
| Ozone O3 | 0-1ppm、0-5ppm、0-50ppm、0-100ppm |
| Hydrogen sulfide H2S | 0-10ppm、0-50ppm、0-100ppm |
| Sulfur dioxide SO2 | 0-10ppm、0-20ppm、0-100ppm、0-1000ppm |
| Nitric oxide NO | 0-10ppm、0-100ppm、0-2000ppm、0-5000ppm |
| Nitrogen dioxide NO2 | 0-10ppm、0-100ppm、0-2000ppm、0-5000ppm |
| Nitrogen oxides NOX | 0-10ppm、0-100ppm、0-2000ppm、0-5000ppm |
| Chlorine gas CL2 | 0-10ppm、0-20ppm |
| Ammonia NH3 | 0-10ppm、0-100ppm、0-1000ppm |
| Hydrogen H2 | 0-100%LEL、0-1000ppm、0-20000ppm、0-40000ppm、0-100%Vol |
| Hydrogen cyanide HCN | 0-30ppm、0-100ppm |
| Hydrogen chloride HCL | 0-20ppm、0-200ppm |
| Phosphine PH3 | 0-10ppm、0-100ppm |
| Chlorine dioxide CLO2 | 0-1ppm、0-10ppm、0-200ppm |
| Ethylene oxide ETO | 0-100ppm、0-1000ppm、0-100%LEL |
| Phosgene COCL2 | 0-1ppm、0-50ppm |
| Silane SiH4 | 0-1ppm、0-50ppm |
| Fluorine gas F2 | 0-1ppm、0-10ppm、0-50ppm |
| Hydrogen fluoride HF | 0-10ppm、0-50ppm |
| Hydrogen Bromide HBr | 0-50ppm |
| Borane B3H6 | 0-10ppm |
| Arsine AsH3 | 0-1ppm、0-10ppm、0-50ppm |
| Germane GeH4 | 0-2ppm、0-20ppm |
| Hydrazine, Hydrazine N2H4 | 0-1ppm、0-300ppm |
| Tetrahydrophene THT | 0-100mg/m3 |
| Bromine gas Br2 | 0-10ppm、0-100ppm、0-2000ppm |
| Acetylene C2H2 | 0-100%LEL、0-100ppm、0-1000ppm |
| Ethylene C2H4 | 0-100%LEL、0-100ppm、0-2000ppm |
| Ethanol C2H6O | 0-100ppm、0-2000ppm、0-100%LEL |
| Methanol CH4O | 0-100ppm、0-2000ppm |
| Carbon disulfide CS2 | 0-50ppm、0-5000ppm |
| Acrylonitrile C3H3N | 0-50ppm、0-2000ppm |
| Styrene C8H8 | 0-10ppm、0-100ppm、0-200ppm、0-1000ppm、、0-5000ppm |
| Chloroethylene C2H3CL | 0-100ppm、0-1000ppm |
| Trichloroethylene C2HCL3 | 0-100ppm、0-1000ppm |
| Tetrachloroethylene C2CL4 | 0-100ppm、0-1000ppm |
| Nitrogen trifluoride NF3 | 0-100ppm |
| Hydrogen peroxide H2O2 | 0-100ppm、0-1000ppm |
| Bromomethane CH3Br | 0-100ppm、0-30000ppm、0-200g/m3 |
| Benzene C6H6 | 0-10ppm、0-100ppm、0-1000ppm、0-10000ppm |
| Toluene C7H8 | 0-10ppm、0-100ppm、0-1000ppm、0-10000ppm |
| Xylene C8H10 | 0-10ppm、0-100ppm、0-1000ppm、0-10000ppm |
| VOC | 0-10ppm、0-100ppm、0-1000ppm、0-10000ppm |
| TVOC | 0-10ppm、0-100ppm、0-1000ppm、0-10000ppm |
| Non methane total hydrocarbons CxHy | 0-10ppm、0-100ppm、0-1000ppm、0-10000ppm |
| Refrigerant, refrigerant | 0-1000ppm、0-2000ppm、0-5000ppm |
| Sulfur hexafluoride SF6 | 0-1000ppm、0-2000ppm、0-3000ppm |