Overview
Enviro Test Construct high precision multi 4 in 1 smart sensor gas detector – adjustable calibrating level detects combustible gas, O2, and two other types of toxic gases continuously and simultaneously. It is ideal for areas requiring explosion-proof measures or prone to toxic gas leaks, such as underground channels or the mining industry. This device safeguards workers’ lives and prevents damage to relevant equipment.
Features
- Advanced MCU control with low power consumption
- Adjustable low and high alarm level
- Adjustable calibrating level
- High concentration protection for combustible gas
- Self-test for the combustible gas sensor
- Low battery indication
- Replaceable sensor module
- Self-adjustment function
- Visual and audible alarm with vibration
- STEL and TWA alarming for toxic gases
- Advanced self-examination and self-renovation function
- Password management to avoid wrong operation
- Explosive proof housing
Technical Specifications
| Operating & Storage Environment | Humidity: 5 % RH to 95 % RH (non-condensing) Pressure: 13.77 psi to 15.95 psi (95 kPa to 110 kPa) |
| Sampling Method | Diffusion type |
| 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 |
| O2 measure Range | 0 % – 25 % or 30 % VOL |
| O2 Resolution | 0.1 % VOL |
| Sensor | O2 or H2S or 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 % F.S |
| 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 | EXiaIICT4 |
| Protection Grade | IP 65 |
| Power Supply | Rechargeable lithium battery |
| Temperature | – 4 °F to 131 °F ( – 20 °C to 55 °C) |
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