Application
The transmitters PCE-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 Ł ±0,1% of calibrated range
Long-term stability Ł accuracy for 3 years
(for the basic range)
Thermal error < ±0,08% (FSO) / 10°C
(0,1% for ranges no. 16, 17)
max. ±0,25% (FSO) in the whole compensation range
(0,4% for ranges 16, 17)
Thermal compensation range -25...80°C
Additional electronic damping 0...30 s
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)
Installation
The transmitter is not heavy, so it can be installed on the installation without additional mounting bracket. When the pressure of steam or other hot media is measured, a siphon or impulse line should be used. The needle valve placed upstream the transmitter simplifies installation process and enables the zero point adjustment or the transmitter replacement. The transmitter's electrical connections should be performed with twisted cable. The place for the communicator should be assigned before the communicator installation.