Quick and reliable detection of carbon dioxide in the ambient air: the microprocessor-based Polytron 8720 transmitter, which contains a new, innovative IR sensor with drift-free optics, can also be integrated into your digital fieldbus system, thus providing additional diagnostic functions.
With its HART® ability, the Dräger Polytron 8720 allows remote access using the Dräger PolySoft 8000 software for the quick and convenient evaluation of the instrument status. Integration in existing management systems (e.g. PactWare) is also possible using DTM. In addition, fieldbus systems such as Foundation Fieldbus or Profibus are supported by corresponding interfaces.
Dräger has been developing and manufacturing sensors and gas detectors for industrial use for more than 40 years. And with each new device generation, we drive our measurement technology a bit further. With the Polytron 8720, you will definitely benefit from this experience and power of innovation. Its DrägerSensor is based on an open, double-compensated optical infrared system.
The housing has four mounting holes. Two different mounting sets are available for installing the Polytron 8720: a duct-mount and a pipe-mount set. This means that the transmitter can be easily installed anywhere – e.g., on a smooth wall, a pipe or an exhaust duct.
With short response times and a high signal stability, the Dräger PIR 7200 offers a high degree of safety – thanks to an extremely light-efficient optics with a 4-beam signal-stabilizing system. Another advantage is its low sensitivity to dust, dirt deposits or insects on the optical surfaces in the measuring cuvette, while offering a drift-free output signal and longer maintenance intervals.
On request, the Dräger Polytron 8720 can be supplied with three integrated relays. This enables you to use it as an independent gas detection system with two arbitrarily adjustable concentration alarms and one fault alarm. Audio alarms, signal lights, or similar devices can, thus, be controlled locally – without an additional cable between the transmitter and a central controller. The sensor signal can be evaluated using the 4 to 20 mA signal.
The electronics and the bezel form a single unit. Simply pull them out of the housing. Then insert the three-wire cable into the terminals through the seal on the conduit. Finally, plug the terminal block into the PCB.
For over 70 years, Dräger has been one of the technology leaders in gas detection.