Description
Overview
GAOTeK Single Gas Detector 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.
It adopted advanced electric circuit design, mature kernel algorithm processing, unique external appearance design, had achieved several patents about the software works, external appearance, and so on. It is possible to simultaneously detect 1 to 4 types of gases, and the units can be switched freely.
Features
- Multi alarm mode
- Easy to carry
- USB charging and storage
Technical Specifications
| Gases to be detected | 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. | |||
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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%, 50%, 100% Vol, can be selected; and other ranges can be customized. | |||
| Resolution | 0.01 ppm to 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 |
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| 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 to 6 years can be selected; infrared principle: 5 years to 10 years; catalytic combustion: 3 years; thermal conductivity: 5 years; PID photoionization: 2 years to 3 years. |
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| Allowable error | ≤±3% F.S (higher precision levels can be customized) | |||
| Repeatability | ≤±2% | |||
| Uncertainty | ≤±2% | |||
| Linearity | ≤±2% | |||
| Response time | T90 ≤ 30 seconds | |||
| Recovery time | ≤30 seconds | |||
| Recovery time | ≤30 seconds | |||
| Working environment | Temperature: -40 oF to 158 oF (-40 ℃ to 70 ℃), humidity: ≤10% RH to 95% RH | |||
| Sample gas temperature | -40 oF to 158 oF (-40 ℃ to 70 ℃), and the optional configuration of high-temperature sampling and cooling filter handle will make it possible to detect the smoke gas at the temperature of 400 ℃ or higher. |
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| Power supply | 3.7 V DC, 3000 mA high-capacity rechargeable polymer battery | |||
| Display mode | 2.31 in (58.67 mm) high-definition colour screen | |||
| Detection mode | Diffusion type measurement. The calibrated flow rate is 500 ml/minute. | |||
| Alarm mode | It is possible to set a sound & light alarm, vibration alarm, sound & light + vibration alarm, and turn 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 | 5.11 in x 2.67 in x 1.33 in (130 mm × 68 mm × 34 mm) | |||
| Weight | 0.44 lb (200 g) | |||