Description
Overview
GAOTek 4 in 1 multi gas detector adopts imported high performance sensor, is an intelligent high-performance detection alarm that can continuously detect and monitor at most four gases and with function of people falling alarm. It has built-in temperature and humidity sensors, display temperature and humidity real-time. The wireless function allows the security personnel to get real-time equipment data and alarm status in any place. Visual data displays, a large 2.3 inch full-color screen and quicker response time help improve personnel safety and protection to a whole new level.
Features
- Imported high-performance sensor with 2 to 3 years’ service life
- Active pump suction for short response time
- Embedded 32-bit ultra-low power microprocessor for high resolution and minimal error
- Built-in temperature and humidity sensors for real-time monitoring
- Intelligent compensation algorithm for temperature, humidity, and zero-point
- 3 to 8 levels of target-point automatic calibration
- Automatic detection of sensor and component status
- 3-inch full-color screen with clear backlight for visibility in any lighting
- User-friendly interface with color icon menu and 7-button navigation
- Switchable between concentration units (PPM, %VOL, mg/m3, mg/L) and languages (Chinese, English)
- Standard 6000 mAh lithium battery for over 30 hours of continuous operation
- Supports mobile power supply and charging, compatible with USB port mobile phone charger
- Equipped with 5V 2.1A USB quick charger with removable plugs (US, Europe, UK/HK, AU standard)
- Real-time data transmission in 5 different alarm modes, including security personnel falling alarm
- Rugged mechanical design with high-strength, waterproof, and anti-corrosion enclosure (IP66)
- Scientific gas chamber design to prevent sensor environment interference
- Real-time and timing detection modes, various storage options including auto, manual, and single point storage
- Customizable storage interval for up to 300,000 data groups, expandable with micro-SD card
- RTU short distance and GPRS unlimited distance wireless transmission modes
- Sends real-time detection results and alarms to security center
- Supports USB data download, micro-portable printer, and Bluetooth wireless printing
Technical Specification
| Detection gas | At most four different gases in air |
| Working principle | TCD thermal conduction (Infrared is optional) |
| Detection range | 0 ppm to 10 ppm, 0 ppm to 50 ppm, 0 ppm to 100 ppm, 0 ppm to 500 ppm, 0 ppm to 1000 ppm, 0 ppm to 2000 ppm, 0 ppm to 10000 ppm |
| Resolution | 0.01 ppm (0 ppm to 100 ppm); 0.1 ppm (0 ppm to 1000 ppm); 1 ppm (>1000 ppm) |
| Sampling method | Active pump suction, built in air pump can open or close independently Flow speed: 500 mL /min |
| Accuracy | ≤ ±3% F.S. |
| Repeatability | ≤ ±1% |
| Zero drift | ≤ ±1% (F.S./year) |
| Response time | ≤ 20s (T90) |
| Recovery time | ≤ 30s |
| Shell material | High strength abrasion resistant polycarbonate enclosure Stainless steel |
| Battery | Standard 6000 mAh capacity lithium battery, more than 30 hours continuous working time, charging time less than 7 hours, support mobile power supply and charging, USB port mobile phone charger compatible. |
| Charger | Standard 5V 2.1A USB quick charger, plug removable, each charger is equipped with four plugs (US, Europe, UK/HK, AU standard). |
| Alarm method | Sound alarm 95 dB@30cm (about 11.81 in), red LED alarm light, personnel falling alarm, short distance wireless and long distance GPRS alarm. |
| Alarm value setting | A1 alarm value, A2 alarm value TWA, STEL and low concentration alarm value can be set individually. |
| Screen | 2.3-inch TFT |
| Backlight | Manual, automatic when alarming |
| Button | 7 buttons navigation |
| Direct reading | Measured value, data logging status, pump working status, environment temperature and humidity, maximum value, minimum value, average value |
| Data storage | Auto storage, manual storage, and single point storage. Storage interval can be customized and 300,000 groups data that can be stored with date/time data, if matching micro-SD memory card, then can store 10 million or more; with data recovery function can choose part or all of data recovery. |
| Data download | Support USB data download; support GPRS wireless transmission (optional) |
| Data print | Support micro-portable printer, Bluetooth wireless printing. |
| Calibration | 3 to 8 levels of the target-point automatic calibration can set the calibration certified value, zero setting. |
| Explosion proof | ExdⅡCT4 Ga (Intrinsically Safe) |
| Protection class | IP66 (water and dust proof) |
| Operation mode | User mode, administrator mode |
| Working humidity | 0% RH to 95% RH (Non-condensing) |
| Dimensions | 3.14 in × 7.87 in × 2.28 in (80 mm × 200 mm × 58 mm) |
| Working temperature | -40 °F to 158 °F (-40℃ to 70℃) |
| Weight | 1.14 lb. (520 g) |
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