MASONELIN DISPLACER TYPE LEVEL TRANSMITTER--124000. We have calibrated the level tx. Indication at transmitter shows 15.55 ma, but output from transmitter is 19ma.

Why this is happening? can anyone clarify and give solution?

 

This is covered by Page 53 of the Manual:

https://www.geoilandgas.com/sites/geog.dev.local/files/mn-12400-dlt-iom-gea19367a-english.pdf