Description
Overview
GAOTek gas detector diffusion type can be used in rapid detection of a variety of gas concentration and measurement of environmental temperature and humidity, if the measurement exceeded the limit value, the alarm would emit sound & light vibration as alarm. Adopted 2.31-inch high-definition color screen for real-time display, adopted the gas sensors of industrially well-known brands. The main detection principles include electrochemical, infrared, catalytic combustion, thermal conductivity, PID photoionization, and so on. Advanced electric circuit design, mature kernel algorithm processing, unique external appearance design, achieved several patents about the software works, external appearance, and so on. Suitable for detecting the concentrations of gases in the atmosphere environment in the pipeline or confined space. The purity of the gas leakage and various high concentration single gases with the background gas as nitrogen gas or oxygen gas. The types of gases for detection are more than 500 types.
Technical Specifications
| Gases To Be Detected | Â Arbitrary combination of 1 to 4 types of gases such as toxic gases, oxygen gas, carbon dioxide, inflammable and explosive gases, TVOC, and so on. Optional configuration: temperature and humidity measurements. |
| Application Scenarios | All the cases which require the portable rapid detection of gas concentrations such as petroleum, chemical, pharmaceutical, environmental protection, combustion gas distribution, warehousing, smoke gas analysis, air governance, and so on. |
| Detection Range | 0 ppm to 1 ppm, 10 ppm, 100 ppm, 1000 ppm, 5000 ppm, 50000 ppm, 100000 ppm, 200 mg/L, 100 % LEL, 20 % Vol, 50 % Vol, 100 % Vol, can be selected; and other ranges can be customized. |
| Resolution | 0.01 ppm or 0.001 ppm (0 ppm to 10 ppm); 0.01 ppm (0 ppm to 100 ppm), 0.1 ppm (0 ppm to 1000 ppm), 1 ppm (0 ppm to 10000 ppm or more), 0.01 mg/l (0 mg/l to 200 mg/l), 0.1 % LEL, 0.01 %, 0.001 % Vol |
| Detection Principle | Electrochemical, catalytic combustion, infrared, thermal conductivity, PID photoionization, and so on, depending on the type of gas, range, field environment and user demand. |
| Sensor Service Life | Electrochemical principle: 2 to 3 years; Oxygen gas: 2 years or 6 years can be selected; infrared principle: 5 to 10 years; catalytic combustion: 3 years; thermal conductivity: 5 years; PID photoionization: 2 to 3 years. |
| Allowable Error | ≤ ± 3 % F.S (higher precision levels can be customized) |
| Repeatability | ≤ ± 2 % |
| Uncertainty | ≤ ± 2 % |
| Recovery Time | ≤ 30 seconds |
| Linearity | ≤ ± 2 % |
| Response Time | T90 ≤ 30 seconds |
| Power Supply | 3.7 VDC, 3000 mA high-capacity rechargeable polymer battery |
| Display Mode | 2.31 in high-definition color screen |
| Detection Mode | Diffusion type measurement. The calibrated flow rate is 500 ml/minute. |
| Alarm Mode | It is possible to set as sound & light alarm, vibration alarm, sound & light + vibration alarm, turning off the alarm. |
| Communication Interface | USB (charging and communication), optional: RS485 communication interface |
| Data Storage | Standard configuration is the data storage capacity for 100, 000 entries |
| Protection Level | IP65 |
| Explosion-proof Type | Intrinsically safe type |
| Explosion-proof Mark | Exia II CT4 Ga |
| Exterior Dimensions | 5.12 in x 2.68 in x 1.34 in (130 mm × 68 mm × 34 mm) |
| Weight | 0.44 lb (0.20 kg) |
| Working Environment | Temperature: – 40 °F to 158 °F (- 40 °C to 70 °C), humidity: ≤ 10 % to 95 % RH |
| Sample Gas Temperature | – 40 °F to 158 °F (- 40 °C to 70 °C), and the optional configuration of high-temperature sampling and cooling filter handle will be possible to detect the smoke gas at the temperature of 752 °F (400 °C) or higher. |
| Temperature And Humidity Measurement | Optional configuration: temperature at – 40 °F to 158 °F (- 40 °C to 70 °C), accuracy level at 32.9 °F (0.5 °C); humidity at 0 to 100 % RH, precision level at 3 % RH |