Aplisens

SMART DIFFERENTIAL PRESSURE TRANSMITTER - APRE-2000

Features:

• 4…20 mA output signal + HART protocol
   
• ATEX Intrinsic safety
   
• Static pressure limit up to 420 bar
   
• Accuracy 0.1%
   
• Gold plated diaphragms (Au)
   
• Wetted parts material Hastelloy C276

Application and construction

The APRE-2000 transmitter is applicable to the measurement of differential pressure of gases, vapors and liquids. The active element is a piezoresistant silicon sensor separated from the medium by separating diaphragms and a specially selected type of manometric fluid. The special design of the active sensing element ensures that it is able to withstand pressure surges and overloads of up to 250, 320 or 413 bar. Electronics in the casing with a degree of protection IP65, IP66.

Communication and configuration

The communication standard for data interchange with the transmitter is the HART protocol.

Communication with the transmitter is carried out with:

• a KAP-03 communicator, ¨
   
• some other HART type communicators ,(*)
   
• a PC with the HART/USB converter and Aplisens RAPORT 2 configuration software.
   
• (*) .eddl files available on www.aplisens.com

The data interchange with the transmitter enables user to:

• identify the transmitter;
   
• configure the output parameters:
  
  – measurement units and values of the start and end-points of the measuring range;

          – damping time-constant;

          – conversion characteristic (inversion, user’s non-linear characteristic);

• read the currently measured pressure value of the output current and the percentage output control level;
   
• force an output current with a set value;
   
• calibrate the transmitter in relation to model pressure.