Description
Overview
GAOTek ammonia gas leak detector has a zero-point automatic tracking; long-term use will not be affected by the zero drift. Multi-level calibration for target points, can ensure the linearity and accuracy of the measurements. Chinese and English interfaces can be selected. Broad operating temperatures: -40 ℃ to +70 ℃, and temperature compensation is supported. Record the calibration logs, repair logs, failure countermeasure solutions, sensor service life due reminder, and function of reminder for the time of next concentration calibration. Meet the requirements on the design of the intrinsically safe circuits, such as anti-static, anti-electromagnetic interference. Protection level is possible to prevent the splash water, dust, and shock.
Technical Specifications
| Gases To Be Detected | Arbitrary combination of 1 to 4 types of gasses such as toxic gasses, oxygen gas, carbon dioxide, inflammable and explosive gasses, TVOC, and so on. Optional configuration: temperature and humidity measurements. |
| Application Scenarios | All the cases which requires 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 100000 ppm, 200 mg/L, 100 % LEL, 20 %, 50 %, 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) |
| Linearity | ≤ ± 2 % |
| Uncertainty | ≤ ± 2 % |
| Response Time | T 90 ≤ 30 seconds |
| Recovery Time | ≤ 30 seconds |
| Repeatability | ≤ ± 2 % |
| Sample Gas Temperature | -40 °F to 158 °F (-40 ℃ to + 70 ℃), 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 ℃) or higher. |
| Power Supply | 3.7 V DC, 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 a 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 |
| Working Environment | Temperature: -40 °F to 158 °F (-40 ℃ to + 70 ℃) Humidity: ≤10 % RH to 95 % RH |
| Temperature And Humidity Measurement | Optional configuration: temperature at -40 °F to 158 °F (-40 ℃ to + 70 ℃), accuracy level at 32.9 °F (0.5 ℃); humidity at 0 % RH to 100 % RH, precision level at 3 % RH |
| Dimensions |  5.12 in x 2.68 in x 1.34 in (130 mm × 68 mm × 34 mm) |
| Weight | 0.44 lb (0.2 kg) |