PolyGard®2 Sensor For Car Parks And Tunnels GasAlarm

PolyGard®2 Sensor for Car Parks and Tunnels GasAlarm PolyGard®2 (developed by MSR) Sensor system with exchangeable sensor element including digital value processing, temperature compensation and self-monitoring algorithm for the continuous sensing and control of the ambient air to detect harmful gases and vapors.

The Sensor for Car Parks and Tunnels consists of a sensor board with housing (SB) and the sensor cartridge (SC). The sensor cartridge includes a separate micro controller. The micro controller evaluates and stores all relevant measured values and data of the sensor element. via the internal local bus the sensor cartridge transmits the data to the sensor board. The sensor board can manage up to three sensor cartridges for different gases. The sensor cartridges can be mounted directly at basic sensor board or as well separately with a remote sensor board (eg. for different gas densities). The basic sensor board communicates with the GC-06 gas controller via the RS 485 field bus interface.

Calibration is done either by simply replacing the sensor cartridge or by using the comfortable, integrated calibration routine with password access directly at the system.

FEATURES

• Digital measurement value processing incl. temperature compensation
• Internal functional control with integrated Hardware Watchdog
• Data / Measured values stored in the micro controller on the sensor unit allowing easy swap of a old sensor with a newly calibrated sensor.
• Up to 3 gases detectable at one measuring point
• High accuracy, selectivity and reliability
• Low zero point drift
• Sensor with long life expectancy
• Modular technology (plug-in and replaceable)
• Easy maintenance and calibration by exchange of the sensor module or by integrated on-site calibration.
• Serial RS 485 interface
• Analog version (optional)
  • 4-20 mA analog input for external transmitter
  • 4-20 mA analog output with selectable signal output for special mode, fault etc.
• Reverse polarity protected, overload and short-circuit proof
• IP 65 version

Built for a standard Digital Output, this transmitter is compatible with the PolyGard 2 series controllers & Sensor Boards as well as any other digital electronic control or automation system.