Pressure Measurement RFID Pressure Transponders
Keller has launched two new series of pressure transponders, combining near-field communication with industrial pressure transmitters: the 21 D RFID and the 21 DC RFID.
The passive pressure transponders in the Series 21 D RFID are autonomous in terms of their energy requirements, allowing them to be used indefinitely without maintenance, while the main attraction of the Series 21 DC RFID is its integrated data logger, which runs on a special long-life battery. With both products, the energy required to transmit measurements is provided wirelessly via the RFID interface.
RFID pressure transponders are particularly advantageous when it comes to monitoring large-scale pressurised facilities such as chemical plants. Closely related applications include the occasional monitoring of pressure vessels and the inspection of pressure-resistant components, e.g. as part of incoming goods checks.
The sturdy, compact and inconspicuous design of the two Series 21 D(C) RFID lets hydraulic pressure be monitored on excavator shovels and clamping chucks. Eight pressure measuring ranges from 3 to 1000 bar are available for measuring absolute pressure.
The overall error range is set at ±0,7 %FS at industry-standard operating temperatures of –10…80 °C, while a temperature sensor also allows the temperature of the medium to be monitored.