In the past, physical constraints to add wiring into existing installations made it difficult and expensive to optimize a process. ABB WirelessHART temperature sensor with Energy Harvester requires no wiring, no external power supply, ideally no battery replacement and can send data wirelessly.
Trialling the world’s first self-powered temperature sensor
A manufacturer of speciality chemicals based in the West Midlands in UK, Robinson Brothers has been the first to try the novel wireless sensors powered by energy harvesting to measure the temperature of their central heat distribution network at certain points and transmit measurement values to office buildings without the need for wiring inside the process building.
The ABB transmitter
is powered by an on-board micro-thermoelectric generator (micro-TEG), which is driven by the temperature difference between the steam pipe and the ambient surroundings.
The device was installed in November 2012 and since that time it is powered permanently by process temperature as it is high enough to get a 100% power supply from TEGs.