Excitation Circuit; Signal Cables - Elis FLONET FH30 Series Project Design, Installation And Service Manual

ELIS PLZEŇ a. s.
Output signals
Terminals
1 A
2 B
−
3
OUT1
4 +
−
5
OUT2
6 +
−I (H1)
7
8 +I (H2)
The output and communication signals shall be connected to the target devices via shielded cables.
The cable shielding shall be connected at one end only, to the PE terminal, located on the terminal
blocks.

5.1.2 Excitation circuit

Excitation current
Maximum voltage:

5.1.3 Signal cables

The maximum length of the signal cables depends on the measured fluid conductivity and electric
parameters of the cables themselves.
To eliminate risk of electromagnetic interference via the connecting cables, the transmitter shall be
located as close as possible to the meter sensor.
The relationship between the measured fluid conductivity and the maximum length of the cables
connecting the meter transmitter and sensor is shown in the following graph:
ELIS PLZEŇ a. s., Luční 425/15, 301 00 Plzeň, Czech Republic, phone.: +420 377 517 711, fax: +420 377 517 722 Es 90678K
Project design, installation and service manual
Electromagnetic flowmeter FLONET FH30xx
Functions
RS-485 MODBUS RTU
Binary output
Current output
I = 200mA
Umax = 30V
Terminals DC power source
C (+)
24V ± 20% (19.2 to 28.8VDC)
D (–)
PE
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