CẢM BIẾN ÁP SUẤT DẠNG CHÊNH ÁP APLISENS MODEL PRE-28.MODBUS

Application

The transmitters PRE-28.Modbus have two operating modes, configuration mode and Modbus mode. The configuration mode is used for changing settings and detailed diagnostics of the transmitter. In this mode you can also activate a current loop compatible with a 4-20 mA current output.

Technical data

Accuracy: ±0,1% of calibrated range

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

Thermal error: < ±0,08% (FSO) / 10°C max. ±0,3% (FSO) in the whole compensation range

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

Zero shift error for static pressure:

      0,01% (FSO) / 10 bar for ranges no. 3, 4, 5, 6, 7

      0,03% (FSO) / 10 bar for range no. 8

      0,06% (FSO) / 10 bar for ranges no. 1, 2

      Zeroing the transmitter in conditions of static pressure can eliminate this error.

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

Materials

Wetted parts and diaphragms: 316Lss

Casing: 304ss (optional: 316ss)

Electrical parameters

Power supply: 

      4…28 V DC

      Exia version: 4…10 V DC

      in 4…20mA mode (only non Exia version): 5..28 V DC

Transmission range: 1200 m

Output: MODBUS RTU or 4…20 mA

Address space: 1…247 devices address

Transmission speed 1200, 2400, 4800, 9600, 19200, 28800, 38400, 57600, 115200 bps

Parity transmission: no parity, odd, even

Frame transmission: 10…11bits (1, 2 bit-stop)