WC70i Gas Sensor
WC70i Gas Sensor Data Sheet
Rugged, Simple, Flexible
The WC70i is a modular wireless gas detection device built around integrated 900 MHz RF communications. It monitors gas presence at the point of risk and transmits the measurement wirelessly to a WaveContact gateway.
The WC70i is a modular wireless gas detection platform built around integrated 900 MHz RF communications. It monitors gas presence at the point of risk and transmits the measurement wirelessly to a WaveContact Gateway. Readings integrate into your supervisory system over Modbus at the gateway. You can pair the WaveContact gateway with a FreeWave long range radio (FGR series) or Zum series for greater connectivity and
integration.
The sensor draws power from a built-in 72Ah battery and uses current-generation smart gas sensor technology to deliver low power demand alongside stable, accurate measurement with minimal calibration over its service life. Temperature and humidity compensation is automatic, keeping drift low across changing field conditions. Low power draw translates directly into long battery life in the field, which means fewer truck rolls to remote sites.
Key Features
- Integrated methane gas sensor (see Table 1 for details)
- Integrated, protected antenna
- Continuous or scheduled measurement modes
- Fast sensor sampling
- Sensor-specific measurement reporting (see Table 1)
- Measurements include PPM, LEL, ambient temperature, relative humidity, absolute humidity
- Compact and simple to install and maintain
- Rugged design for demanding outdoor environments
- Internal battery powers integrated gas sensor and radio for years
- Up to 0.8 km (0.5 miles) range
- Class I, Division 1, intrinsically safe
Download WC Toolkit v2.3.16.04
- Version 2.3.16.04 adds support for new Emissions Monitoring Nodes WC70i and WC70 LCD
GAS SENSOR SPECIFICATIONS TABLE 1
| CH4 Methane | Technology | MEMS transducer |
| Detection Range |
50 - 1,000,000 PPM 2 SCFH @ 30’ (10m) distance |
|
| Resolution | 1 PPM | |
| Calibration | Factory calibrated | |
| Accuracy | +/-10% > 300PPM (typical @ 20DegC / 50% RH) | |
| Temperature | -40°C to +75°C | |
| Atmospheric | 80kPa – 120kPa | |
| Measurements Provided | PPM, Temperature, Atmospheric Pressure, Absolute Humidity, Relative Humidity | |
| Damp Heat-Steady State | 500 hours @ 40°C/93% RH | |
| Temperature Cycling | From -40°C to 85°C for 200 cycles | |
| Sand/Dust | Sand: 150-850 μm SiO2 particle size, 23 m/s nom. velocity, 1.5 hrs @ 70°C per axis, 3 axes |
|
| Dust | Red China Clay, 1.5 m/s nom. velocity, 6 hrs @ 20°C and 6 hrs @ 70°C | |
| Key Features | Built-in environmental compensation · Inherently poison resistant No calibration required · Supports 15+ year lifetimes |
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