CẢM BIẾN ÁP SUẤT APLISENS MODEL PCE-28.SMART/EXD

Application

PCE -28 pressure transmitter is applicable to the measurement of the pressure, underpressure and absolute pressure of gases, vapours and liquids. The active sensing element is a piezoresistant silicon sensor separated from the medium by a diaphragm and by specially selected type of manometric liquid.

Technical data

Output signal: 4…20 mA + HART protocol

Accuracy: ±0,1% of calibrated range

Long-term stability: Accuracy for 3 years (for the basic range)

Thermal error < ±0,08% (FSO) / 10°C (0,1% for ranges no. 17, 18)

max. ±0,25% (FSO) in the whole compensation range (0,4% for ranges 17, 18)

Thermal compensation range: -25...80°C

Additional electronic damping: 0...30 s

Error due to supply voltage changes: 0.002% (FSO) / V

Electrical parameters

Power supply: 7,5...30 V DC

Output signal: 4...20 mA, two wire transmission

Wetted parts and diaphragms: 316Lss, Hastelloy C 276

Casing: 304ss

Optional: 316ss

Operating temperature range (ambient temp.):

      FL electrical connection -40...80°C*

      SGM electrical connection -40...65°C*

Medium temperature range: -40...120°C over 120°C – measurement with use an impulse line or diaphragm seals

Smart pressure transmitter

      II 2G Ex db IIC T6/T5/T4 Gb

      II 2D Ex tb IIIC T85°C/T100°C/T120°C Db

      I M2 Ex db I Mb (only for PZ2 casing)

IECEx

      Ex db IIC T6/T5/T4 Gb

      Ex tb IIIC T85°C/T100°C/T120°C D

      Ex db I Mb (only for PZ2 casing)

Communication: 

      The communication standard for data interchange with the transmitter is the Hart protocol. Communication with the transmitter is carried out with:

- A KAP-03, KAP-03Ex communicator

- Some other Hart type communicators,(*)

- A PC using an HART/USB converter and Raport 2 configuration software.

     The data interchange with the transmitter enables users to:

- Identify the transmitter

      Configure the output parameters:

- Measurement units and the values of the start points and end points at the measurement 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 a model pressure