Z-FLOWCOMPUTER

Flow computer for liquids, vapors and gas flow calculations (CPU only)

Z-FLOWCOMPUTER-B is a flow computer for water, steam and gas applications. The unit is equipped with nr. 4 PNP/NPN digital inputs, nr. 2 voltage/current analog inputs, nr. 1 universal analog input, nr. 2 relay digital outputs and nr. 1 analog voltage/current output.
The versatility of this controller, which is guaranteed by different standards of input signals, allows the use in applications such as corrected flow or energy efficiency calculation for white certificates issue. Water and steam applications compressibility factor is calculated conforming to international standard IAPWS IF-97 while flow rate totalization and compensation for both NATURAL and REAL GAS are calculated according to SGERG88 ISO 12213-3, AGA8 GROSS, AGA8 92-DC ISO 12213-2, RK and RKS algorithms calculation standards.

TECHNICAL DATA

CPU power supply	11..40 Vdc (or 19..28 Vac)
Power consumption	Max 4 W (7.2 W display)
Insulation	1.500 Vac
LEd Status indicators	Power supply, Serial communication, Link and Ethernet, SD card use, Digital inputs
Protection degree	IP20
Operating Temperature	-10..+50 °C
Dimensions WxHxD	52,5 x 100 x 112 mm
Connections	Removable terminal block, max wire size 2,5 mm2
Installation	35 mm din rail guide (IEC EN 60715)
Ethernet port	nr. 1 10/100Tx on RJ45 front port
Serial port	nr. 1 RS232 / 485 commutabile serial port, baud rate max 115k on terminals
USB port	nr. 1 USB on side connector
Supported protocols	ModBUS TCP-IP Server
Input channels	nr. 1 digital inputs PNP, NPN (max voltage input 30Vdc) nr. 2 analog input 0 - 20 mA / 0 - 30 Vdc nr. 1 universal input V / mA / RTD / TC
Output channels	nr. 2 SPDT relay outputs, max 2A 250 Vac nr. 1 analog output V – mA @14 bit
Configuration	Webserver, datalogger and via software