DCD IR – Carbon Dioxide Sensor with Digital Data Transmission
The DCD is designed for continuous monitoring of Co2 content in a mine. It is equipped with an NDIR sensor that can be placed directly on the monitor housing or on a cable up to 30m. The gas sensor hole has a replaceable filter to protect it from dust and water. The Co2 monitor is powered from a ground station via a standard telephone line.
In the event of a power line failure, the device can continue further operation thanks to the built-in battery (optional). Data from/to the monitor is transmitted via the same line. It is possible to connect two DCD monitors on one line. The device has two galvanically isolated digital outputs for automatic signaling of a dangerous concentrations of carbon dioxide in the air.
Concentration levels can be manually set by the operator and sent to the DCD monitor. The device has a LED on top of the housing, which lights up when the concentration level exceeds the designated level. The entire unit is enclosed in a rugged IP54-rated enclosure.
Features of the device:
- Continuous monitoring of carbon dioxide content in the air
- High quality optical transducer
- High sensitivity of measurements
- Two digital signal outputs
- Two general-purpose signal inputs
- Data transmission via power lines
- Up to two units on one line
- Internal backup battery (optional)
- Measurement range: 0-5% CO2
- Measurement error: 0.1% CO2
- T90 response time: <45s
- Maximum resistance of the telephone line: 700 Ω
- Transmission standard: V23 FSK
- Operating temperature range: -10 to +40
- Humidity range: 0-95% RH
- Dimensions: 123x180x58 mm
- Weight: 3,5 kg