New RFID technology wireless pressure sensor/data loggers

The new 21D/ DC RFID series from Bestech Australia are unique solutions combining industrial pressure sensing with RFID wireless communication and data logging.

These new pressure transponders are a combination of extremely sturdy, tried-andtested industrial pressure transmitters and RFID (radio frequency identification) wireless technology.

The D line piezoresistive transmitters used to measure pressure are based on Keller’s chip-in-oil technology. The laserwelded, hermetically sealed stainless steel housing, which is filled with oil for pressure transmission, contains the pressure transducer and the ultra-energy-efficient compensation electronics with I2C interface.

RFID wireless pressure transponders performance features: • Extremely resistant to environmental

impact. • Ultra-compact stainless steel housing, also

available in Hastelloy C-276. • High accuracy, outstanding long-term

stability, hysteresis-free. • Temperature displayed alongside accurate

pressure reading. • Pressure ranges from 3 to

1,000 bar. • Freely programmable measuring point numbers (eight alphanumeric characters). Series 21D/DC RFID appeals to maintenance where concerns of power supply and long term monitoring of pressure feedback are addressed.

Applications for using 21D/DC include mining where the 360-ton trucks run 7/24 and require preventive maintenance after every 20 days on the 400 bar hydraulic system.