Conventional differential pressure transmitters (DPTs) with impulse lines (tubing) had been used traditionally in such applications. To reduce the maintenance operations, and to protect the system from the highly corrosive sea water, not resolved even by the use of noble materials, SIDEM was looking for a new technology. The solution provided by VEGA consists of two VEGABAR 82 pressure transmitters, joint together to form a single eDPT, the electronic differential pressure transmitter, to control the 34 locations with filters on the site.
The sensors are equipped with a ceramic measuring cell, and a PVDF flange, which makes them perfectly compatible with the sea water. Communication between the primary and the secondary sensors is done via a standard 4-wire cable, providing greater flexibility and ease of installation, - no oil capillaries are used. The solution resulted in reduction of material costs, as well as costs of installation and commissioning.