DIFFERENTIAL PRESSURE TRANSMITTER MESSTECH MA-401.E

TECHNIQUE USED:

The measurement sensor of the pressure/level transmitters is made of ceramics, the technique used being piezoresistive. This technology is related to the deformation of the ceramic membrane of the sensor, in which four electrical resistances are engraved forming a Wheatstone bridge. Therefore, any deformation that has the effect of a pressure, will unbalance the electronic circuit that will form a proportional and linear output signal to the pressure supported by the ceramic cell. The ceramic sensors used are internally temperature compensated by PTC resistors.

The use of ceramic technology, in the field of pressure transmitters, provides excellent reliability by:
- Perform the pressure directly on the diaphragm of the ceramic sensor
- There is no fluid chamber inside the sensor (synthetic oil, glycerin, etc.) that can produce variations due to expansion effects or mounting position, providing high stability against the effects of temperature
- Excellent mechanical memory and repeatability against pressure variations
- Compatibility against aggressive products

Differential pressure

- Output signal: 4÷20 mAdc.
- Pneumatic connection to process: by 4-6 mm pipe. 
- Electrical connection: three-pole strip
- Pressure ranges: 0÷25 mBar....0÷400 mBar