Description
Overview
GAOTek portable detector HF analyzer is a united gas detector measuring four major gases, which result the most of the industrial accidents, to protect the disasters caused by the O2 deficiency, toxic gas poisoning and combustible gas explosion. It measures continuously four gases O2, CO, H2S and combustible gas (CH4), and displays their concentrations. Once the risk occurs, it also raises the alarm (visual, audible and vibrative).
Features
- Small size and light weight
- Simple operation with only 1 button
- Adjustable alarm levels and span calibration value
- STEL and TWA alarm for toxic gases
- Self protection for combustible gas sensor against high concentration
- Battery low voltage alert
- Confidence beep
- Self-test after power on
- Self-diagnostic and self-correction function
Technical Specifications
| Measuring gas | O2 CO H2S Combustible |
| Measuring range | 0 % VOL to 25 % VOL 0 ppm to 500 ppm 0 ppm to 100 ppm 0 % LEL to 100 % LEL |
| Sensor type | Electrochemical Electrochemical Electrochemical Catalytic |
| Measuring type | Diffuse naturally |
| Response time | T 90 < 30 s |
| Display | LCD screen |
| Audible | ≥ 85 dB at 1 m |
| Alarm method | Visual, audible and vibrative signals |
| Battery | DC 3.7 V 1800 mAh Lithium battery |
| Operating life | ≥ 8 h per charge (Charging time: 4 h to 6 h) |
| Event log | 2000 events |
| Working humidity | < 95 % RH (no condensation) |
| Housing | Rubber enclosure |
| Standard accessories | Operation manual, calibration cap, charger, screwdriver |
| Ex grade | Â II 2G Ex ia IIC T4 Ga or II 2GÂ Â Ex db ia IIC T4 Gb |
| Ingress protection | IP 66 |
| Working temperature | -4 °F to 122 °F (-20 °C to 50 °C) (for toxic gas) |
| Working temperature | -40 °F to 158 °F (-40 °C to 70 °C) (for combustible gas) |
| Dimensions | 4.72 in x 2.67 in x 1.18 in (120 mm x 68 mm x 30 mm) |
| Weight | About 0.48 lbs (220 g) |