Differential Pressure Transmitters...

The high performance differential pressure transmitter can be used to measure liquid, gas or steam flow. It outputs a 4 to 20 mA DC signal corresponding to the measured differen- tial pressure. In the variable head producers, the relationship between the flow rate and the differen- tial head produced is expressed as, Q ∝ h . As the above relationship is non-linear, it is necessary to make the current of the trans- mitters as a linear one. For the purpose of linearising the current, the square root extractor, which may be built-in or externally added, is used. Fig. 1.24 shows the photographic view of high performance differential pressure transmitter. Fig. 1.25 shows the differential pressure transmitter with built-in square root extractor and Fig. 1.26 shows the differential pressure transmitter with external square root extractor.

trancelet kare marathi ,Hindi, etc. Fig. 1.24 High performance differential Pressure transmitter.