Description
Overview
GAOTek Handheld NO2 Gas Sensor is used for the occasions where rapid detection of nitrogen dioxide gas concentrations, temperature and humidity measurements, and over-standard alarm.
The detector adopts a 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. The detector 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. It can detect more than 500 kinds of gases.
Features
- Free unit switching, versatile measurement options
- Diffusion measurement capability
- High-definition color screen interface
- Large data storage with multiple options
- Three display modes for flexibility
- Graphical trends are displayed for data analysis
- Convenient data recovery options
- Customizable alarm settings and types
- Mis-operation prevention for accuracy
- Reliable zero point tracking
- Multi-level calibration for precision
- Multilingual interface support
- Comprehensive logging and reminders
- Intrinsically safe and durable design
Technical Specifications
| Detecting Gas | NO2 |
| Measuring Range | 010 ppm, 0500 ppm, 02000 ppm, 010000 ppm, 0100 mg/L, 05% Vol, 030% Vol, 0100% Vol (Optional) |
| Accuracy | 3% F.S |
| Linearity | ≤±2% |
| Repeatability | ≤±2% |
| Recovery Time | ≤30s |
| Response Time | T90<20 s |
| Sampling Method | Diffusion type |
| Explosion Proof | ExdIICT4 Ga (Intrinsically Safe) |
| Resolution | 0.001ppm (010 ppm), 0.01 ppm (01000 ppm), 1ppm (0 ppm to 5000 ppm), 0.01 mg/L, 0.1% LEL, 0.01% Vol, 0.001% Vol (Depending on the measuring range) |
| 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 to 3 years, Thermal conductivity: 2 years to 5 years, Semiconductor: 2 years to 3 years, PID: 2 years |
| Sensor Sampling Method | Diffusion type, calibrated flow rate 500mL/min |
| Display | 2.31 in HD color screen, 4 keys operation |
| Accuracy | ≤±3% F.S. (Customizable with higher accuracy) |
| Linearity | ≤±2% |
| Repeatability | ≤±2% |
| Alarm | Sound and light alarm, vibration alarm, visual alarm, sound and light + vibration + visual alarm, shutdown alarm (optional) |
| Working Power | DC 3.7 V |
| Battery Capacity | 3.7 VDC, 2100 mAh high-capacity rechargeable polymer battery, with functions of overcharge, over-discharge, over-voltage, overheat, short-circuit protection |
| Temperature Measurement | (optional) -40 ℉ to 248 ℉ (-40 ℃ to +120 ℃) |
| Humidity Measurement | (optional) 0% RH to 100% RH, Accuracy: ±3% RH |
| Data Storage | Standard configuration is 100,000 pieces of data capacity. 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), Optional: RS485 or RS-232 |
| Interface Language | English |
| Explosion-Proof | Intrinsically safe Exiaâ…¡CT4Ga, Explosion-proof certificate No.: CnEx16.3092 |
| Protection | IP65 dust-proof and splash-proof |
| Standard Accessories | User manual, certificate of conformity, USB charger (including data cable), back clip |
| Optional Accessories | Temperature and humidity measurement function, PC communication software |
| Application | Petroleum, chemical, pharmaceutical, environmental protection, flue gas analysis, air treatment, etc. |
| Dimensions | 5.12 in x 2.68 in x 1.34 in (130 mm x 68 mm x 34 mm) |
| Weight | 0.44 lb (200 g) |