Description
Overview
GAOTek methyl bromide CH3Br gas detector adopts high performance intelligent methyl bromide gas sensor. It is a portable handheld detection instrument that can continuously monitor methyl bromide gas concentration. The detector uses more than 30 kinds of plug-and-play smart sensors, including imported PID photo ion sensor, electrochemical poison gas sensor, catalytic combustion sensor, infrared sensor, and TCD thermal conductivity to adapt to different testing needs for different industries.
Features
- High performance intelligent gas sensor with a service life of more than 2 to 3 years
- Active pumping type or diffusion type is optional, short response time, ultra low power consumption microprocessor, small detection error and high resolution
- Intelligent temperature, humidity and zero point compensation algorithm, full software automatic calibration function for target points above level 2 to ensure the accuracy of the measurement results
- automatic detection of the working status of each sensor and component when it is turned on.
- High definition LCD display, large and clear background light can display measurement information under any lighting conditions, and a friendly user interface with 4 key navigations, which fully demonstrates the humanization and internationalization of the design.
- Support PPM and mg per m3, % VOL and mg per L concentration units can be switched freely.
- Built-in 2000 mAh lithium battery, continuous working time is more than 15 hours, support mobile power supply and charging, compatible with universal USB port mobile phone charger.
- Scientific mechanical design, high strength wear-resistant polycarbonate shell, sturdy waterproof and anti corrosion, anti electromagnetic radiation, reasonable and scientific gas circuit and gas chamber design, try to avoid the sensor from environmental interference.
Technical Specifications
| Working Principle | Electrochemical, Infrared, TCD, PID, Catalytic Combustion (optional) |
| Detection Range | 0 ppm to 1 ppm, 0 ppm to 10 ppm, 0 ppm to 50 ppm,
0 ppm to 100 ppm, 0 ppm to 200 ppm, 0 ppm to 500 ppm, 0 ppm to 1000 ppm, 0 ppm to 2000 ppm, 0 ppm to 5000 ppm, 0 ppm to 10000 ppm, 0 ppm to 50000 ppm, 0 ppm t100 % LEL |
| Resolution | 0.01 ppm (0 ppm to 100 ppm); 0.1 ppm (0 ppm to 1000 ppm); 1 ppm (>1000 ppm); 0.1 % LEL; 0.01 % VOL |
| Sampling Method | Active pump suction or diffuse type |
| Accuracy | ≤ ± 3 % F.S. |
| Repeatability | ≤ ± 1 % |
| Zero Drift | ≤ ± 1 % (F.S. per year) |
| Response Time | ≤ 20 s (T90) |
| Recovery Time | ≤ 30 s |
| Shell Material | High strength wear resistant polycarbonate shell + stainless steel |
| Battery | Rechargeable lithium battery 2000 mAh, continuous working time more than 15 hours, charging time less than 5 hours, supports mobile power supply and charging; compatible with universal USB mobile phone chargers |
| Charger | Standard 5 V 2.1 A USB quick charger |
| Alarm Value Setting | A1 alarm value, A2 alarm value |
| Screen | LCD |
| Button | 4 buttons navigation |
| Calibration | Target point calibration function, can set the calibration value, one key zero adjustment |
| Explosion Proof | Exdâ…¡CT4 Ga (Intrinsically Safe) |
| Protection Class | IP65 |
| Operation Mode | User mode, administrator mode |
| Working Humidity | 0 % RH to 95 % RH (Non-condensing) |
| Working Temperature | -40 °F to 158 °F (-40 ℃ to 70 ℃) (If matched with high-temperature sample handles, can measure up to 1472 °F (800 ℃) |
| Alarm Method | Sound alarm 95 dB, 11.81 in (30 cm), vibration alarm, red LED alarm light, |
| Dimensions | 7.48 in x 2.24 in x 1.77 in (19 cm x 5.7 cm x 4.5 cm) |