Description
Overview
GAOTek Explosive Gas Test Instrument could detect combustible gas, O2 and two other types of toxic gases continuously and simultaneously. It is widely used in the area where explosion proof is required or toxic gas leaks, like underground channels or the mining industry, so as to protect the workers’ lives and avoid damage to the relevant equipment.
Features
• Efficient MCU control, low power use
• Customizable alarm and calibration levels
• High concentration safety, self-test for gas sensor
• Alerts for low battery status
Technical Specifications
| Operating & Storage Environment | Temperature: -4 °F to 122 °F (-20 °C to 55 °C) Humidity: 5% to 95% (Relative humidity non-condensing) Pressure: 13.77 PSI to 15.95 PSI (0.0947 MPa to 0.1099 MPa) |
| Detecting Range | CO: 0 ppm to 1000 ppm H2S:0 ppm to 100 ppm O2: 0% vol to 30% vol Combustible Explosive Gas (Ex / LEL / CH4): 0% lel to 100% lel |
| Sensor | O2 /H2S / CO: plug-in electrochemical sensor |
| Alarm Type | low & high alarm, multiple gas alarm, sensor alarm, battery low alarm, prompt tone, automatic shutdown alarm |
| Resolution | 0.1% vol (O2), 1 ppm (CO), 0.1 ppm (H2S), 1% lel (EX) |
| Accuracy | 3% FS |
| Response time | 10 s |
| Repeatability | 1% |
| Zero drift | 1% |
| Data record | 500 pcs of data storage |
| Display | Alphanumeric large LCD displays the real time gas concentration and alarm stage |
| Backlight | Automatically activated when working in poor lighting environment or the alarm sounding, or the button is knobbed down. |
| Self-checking Function | Self-checking Battery power, display, sensor, hardware failure |
| Explosion-proof | EXib IIB T3 Gb |
| Protection grade | IP65 |
| Power Supply | Rechargeable lithium battery |