Description
Overview
GAOTek Portable Nitrogen Dioxide Detectors is used for the occasions where rapid detection of nitrogen dioxide gas concentrations, temperature and humidity measurements, and over-standard alarm. It adopts high-definition color screen for real-time display. It is built in imported high performance electrochemical, infrared, catalytic combustion, thermal conductivity, PID gas sensors and high-precision capacitive digital temperature and humidity sensor. Advanced circuit design, mature kernel algorithm processing, unique shape design, has obtained a number of software work patents and appearance patents. It can detect the gas concentration in pipelines or confined spaces and the atmospheric environment. It can detect gas leaks or high purity single gas purity of various background gases such as nitrogen or oxygen.
Features
- Flexible Display Unit: Easily switch units, no need to input molecular weight
- Multiple Units: ppm, mg/m³, Vol%, LEL%, PPHM, ppb, mg/L
- Built-in Pump Suction: Fast response, long-distance sampling
- Water Vapor and Dust Filter: Ideal for high humidity and dust environments
- Data Storage: 100,000 data points, SD card option
- Communication Interfaces: USB, RS 232, infrared, wireless
- Printing: Print company info, gas name, date, time, and data
- High-Temperature Detection: Option for extreme conditions
- Multiple Display Modes: View multiple gases, cycles, and curves
- Graphical Trend Display: Visualize gas concentration changes
- Data Recovery: Partial or full recovery options
- Display Options: Show max, min, average values
- USB Charging: Safe charging works while charging
- Long Battery Life: 6000 mA polymer battery
- Temperature/Humidity: Optional precision measurement
- Real-Time or Timed Detection: Flexible operation
- Alarm Variety: Sound, light, vibration, visual alarms
- Alarm Settings: Customize alarm levels and modes
- Mis-Operation Prevention: Avoid calibration errors
- Zero Point Tracking: No drift over time
- Multi-Level Calibration: Ensures measurement accuracy
- English Interface: User-friendly
- Logging: Records calibration, maintenance, alerts
- Intrinsically Safe: Anti-static, anti-interference
- IP67 Protection: Waterproof, dustproof, shockproof
Technical Specifications
| Detection Gas | Nitrogen Dioxide (NO2) |
| Measuring Range | 0 ppm to 1ppm, 0 ppm to 10ppm, 0 ppm to 100ppm, 0 ppm to 500ppm, 0 ppm to 1000ppm, 0 ppm to 2000ppm, 0 ppm to 5000ppm, 0 ppm to 10000ppm, 0 ppm to 50000ppm 0 mg/L to 100 mg/L, 0% LEL to 100% LEL 0 to 5%Vol, 0 to 20%Vol, 0 to 30%Vol, 0 to 50% Vol, 0 to 100% Vol (Optional) |
| Resolution | 0.001ppm (0 ppm to 10 ppm) High accuracy 0.01ppm (0 ppm to 10 ppm) 0.01ppm (0 ppm to 100 ppm) 0.1ppm (0 ppm to 1000 ppm) 1ppm (0 ppm to 5000 ppm) 0.01mg/L0.1%LEL0.01%Vol, 0.001%Vol |
| Working Principle | Electrochemical, infrared, catalytic combustion, thermal conductivity, semiconductor, PID, etc. Depends on measuring range, field environment and customer requirements. |
| Sensor Life | Electrochemical: 2 years to 3 years Infrared: 5 years to 10 years Catalytic combustion: 2 years to 3 years Thermal conductivity: 2 years to 5 years Semiconductor: 2 years to 3 years PID: 2 years |
| Sampling Method | Built-in pump suctionFlow: 500 mL/min |
| Display | 2.5 in HD color screen8 keys operation |
| Accuracy | ≤±1% F.S. (Customizable with higher accuracy) |
| Linearity | ≤±1% |
| Repeatability | ≤±1% |
| Alarm | Sound and light alarm, vibration alarm, visual alarm, sound and light + vibration + visual alarm, shutdown alarm(optional) |
| Response Time | ≤20 s (T90) |
| Recovery Time | ≤30 s |
| Working Power | DC 3.7 V |
| Battery Capacity | 3.7 VDC, 6000 mA high-capacity rechargeable polymer battery rechargeable polymer battery with functions of overcharge, over discharge, overvoltage, overheat, short circuit protection |
| Working Environment | Temp: -40 °F to 158 °F (-40 °C to +70 °C)Relative humidity: ≤0 to 99% RH (Built-in filter for use in high humidity or dusty environments) |
| Sample Gas Temperature | -40 °F to 158 °F (-40 °C to +70 °C)Optional high temperature sampling cooling filter handle to detect 1300 ℃ or higher gas |
| Humidity Measurement | 0% RH to 100% RHAccuracy: ±2%RH |
| Data Storage | Standard configuration is 100,000 pieces of data capacity, support CF card storage. Support local viewing, deletion or data export, free upper computer communication software, storage function is turned off by default, can be set to on, storage interval can be set arbitrarily. |
| Communication Interface | USB (Charging and communication)Infrared or RS 232 |
| Interface Language | English |
| Explosion-proof | Intrinsically safe ExiaⅡCT4Ga   Explosion-proof certificate No.：CnEx16.3090 |
| Protection | IP 67 dust-proof and splash-proof |
| Standard Accessories | User manual, certificate of conformity, USB charger (including data cable), back clip, humidity dust filter, high-grade aluminum alloy instrument case |
| Optional Accessories | 47.244 in (1200 m) retractable sampling handle Temperature and humidity measurement function PC communication software High temperature sampling cooling filter handle High temperature and high humidity pretreatment system Humidity and dust filter External mini wireless infrared printer SD card storage Wireless data communication |
| Dimensions | 7.09 in x 3.07 in x 1.30 in (180 mm x 78 mm x 33 mm) |
| Weight | 0.77 lb (350 g) |