Pressure Transmitter EF6 for Transport Applications

26th June 2008
Posted By : ES Admin
Pressure Transmitter EF6 for Transport Applications
With the EF6, Baumer’s product segment Process Instrumentation has developed an EMC-safe pressure transmitter suitable especially for transport applications. It is already applied in the brake system of several high speed trains.
The pressure transmitter is suitable especially for railway applications in which the pressure sensors are submitted to many pressure cycles as for example in the hydraulic and pneumatic brake control or in cooling circuits.

The EF6 can also be applied in high voltage areas. In several types of locomotives, the EF6 controls the pressure of the pantograph (a device that collects electric current with up to 2.500 Ampere from overhead lines) on the power supply line. The output signal is transmitted to a microcontroller for the pressure regulation. Furthermore, the pressure control in the locomotives’ pneumatic brake system can be carried out by the EF6.

The EF6, protected by a stainless steel case, is available with a piezoresisitive or a capacitive ceramic sensor. The measuring range can be chosen individually according to customer needs between -1…100 mbar and 0…200 bar. The global accuracy for operating temperatures between -40°C and +85°C is 0.5% of F.S. including linearity error, hysteresis or zero drift. The response time is less than 15 ms.

With a MTTF (mean time to failures) of 10 millions hours, the EF6 has en excellent long-term stability. Due to its high reliability, the EF6 can be used also in harsh transportation applications like tank and fire trucks or public works machines.

The device is conform to all important standards for railway applications like EN50155 (Electronic Equipment Used On Rolling Stock), CEI IEC 61373 (shocks and vibrations), NF EN 50121-3-2 (electromagnetic compatibility) as well as the fire and smoke standards NF F 16-101 and NF F 16-102.

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