Description
Overview
GAOTek Single Portable HCN Gas Detector quickly and accurately detect gas leaks or gas concentration exceeding the alarm limit. The main detection principles of gas detection are: electrochemical, infrared, catalytic combustion, thermal conductivity, PID photoionization, etc. It is  widely used in firefighting, emergency rescue, confined space, petroleum, chemical industry, metallurgy, refining, gas, storage, medicine, environmental protection, air treatment and other occasions.
Features
- Built-in pump suction measurement
- Diffusion + pump suction detection mode
- Pump clogging alarm
- LED lighting (optional)
- Unit free switching
- Unit optional: umol/mol, ppm, pphm, ppb
- Unit optional: mg/m3, ug/m3, %Vol, %LEL
- 8-key  operation
- Quick one-key calibration function
- Data storage
- Storage capacity of not less than 100,000 items
- Communication interface TYPE-C, option BluetoothFall alarm
- Data recovery function
- Part or all of the factory data recovery
- Maximum value, minimum value, weighted average value display
- Alarm mode setting
- Alarm mode sound and light alarm
- Vibration alarm, voice alarm
- Alarm type Concentration alarm
- Under pressure alarm, fault alarm
- Pump blockage alarm
- Alarm mode: low alarm, high alarm, interval alarm
- TWA/STEL alarm
- Misoperation recognition function
- Automatically recognize and block concentration calibration misoperation
- Zero point auto-tracking, avoiding zero point drift
- Multi-level calibration of target point
- Intrinsically safe circuit design
- Explosion-proof, shock-proof, anti-static, anti-radiation
- Protection class IP68, rain and immersion, dustproof, anticorrosive
Technical Specifications
| Detection Factor | Single gas (carbon monoxide CO, hydrogen sulfide H2S, oxygen O2, combustible gas Ex, carbon dioxide CO2, VOC, etc.), depending on the site environment and user requirements |
| Detection Range | Depends on the site environment and user needs |
| Resolution | 0.001 ppm (0 ppm to 10 ppm high accuracy)/0.01 ppm (0 ppm to 10 ppm); 0.01 ppm (0 ppm to 100 ppm), 0.1ppm (0 ppm to 1000 ppm), 1ppm (0 ppm to 1000 ppm or more); 0.1 %LEL; 0.1%, 0.01 %Vol |
| Detection Principle | Electrochemical, catalytic combustion, infrared, thermal conductivity, semiconductor, PID photoionization, etc., depending on the range, site environment and user needs |
| Sensor life | Electrochemical 2 years to 3 years, catalytic combustion 2 years to 3 years, infrared 5 years to 10 years, thermal conduction 2 years to 5 years, PID 2 years to 3 years |
| Measuring method | Built-in pump suction, can be switched to diffusion, diffusion + pump suction detection mode |
| Display | LCD |
| Display content | Real-time concentration, unit, gas name, alarm status, time, storage status, communication status, power, charging status, etc. |
| Uncertainty | ≤ ± 2 % |
| Detection accuracy | Typical precision: ≤ ± 3 % FS (optional higher precision sensor) |
| Linearity | ≤ ± 3 % |
| Repeatability | ≤ ± 2 % |
| Response time | T90 ≤ 20 seconds |
| Recovery time | ≤ 30 seconds |
| Operating power supply | DC 3.7 V x 2 |
| Battery capacity | 2500 mAh rechargeable polymer battery, with over-charge, over-discharge, over-voltage, short-circuit, overheating protection function. |
| Relative humidity | 10 % RH to 95 % RH |
| Communication Interface | Standard Type-C (2 hours fully charged) |
| Data storage | Standard capacity of not less than 100,000 items; support for local view, delete or data export, storage time interval arbitrary settings |
| Interface language | Chinese, English and other languages can be customized |
| Explosion-proof type | Intrinsically safe Exia II CT4Ga |
| Protection class | IP68 |
| Housing material | High-strength corrosion-resistant fire-resistant polycarbonate and rubber protective cover, drop-proof wear-resistant anti-static, effective drop resistance ≥ 5 meters |
| Standard accessories | Calibration cover, pump suction nozzle, manual, certificate of conformity, USB charger (including data cable), instrument packaging color box |
| Optional accessories | 0.2 meters swan neck sampling probe; activated carbon filter; 0.4 meters stainless steel sampling handle (including 1 meter hose); 0.9 meters retractable sampling handle (including 1 meter hose); External Bluetooth printer. |
| Temperature | -4 °F to 140 °F (-20 °C to 60 °C) Customizable -40 °F to 158 °F (-40 ℃ to 70 ℃) |
| Dimensions | 6.57 in x 2.52 in x 2.44 in (167 mm x 64 mm x 62 mm) |
| Weight | 0.617 lbs (280 g) |