ELIS PLZEŇ a. s.
Design, Assembly and Service Manual
Page 23 of 32
Electromagnetic flowmeter FLONET FN50xx.1
ELIS PLZEN a. s., Lucni 425/15, 301 00 Plzen, Czech Republic, Phone: +420/377 517 711, fax: +420/377 517 722
Es90716K
6.2.2. Output signal connections
Terminal
Polarity
Function
Comments
1
Optocoupler collector (+) Binary output OUT1
Pulse output
Passive output, required external
power source and loading resistor
2
Optocoupler emitter (-)
The output terminals can be connected to co-operating electronic equipment using standard shielded signal
cables of external diameter 3 to 6.5mm and conductor cross-section 0.5 to 1.5mm
2
. Shielded conductors
shall also be used to connect all output signals where the shielding shall be connected to the earth potential
on the side of the plant control system.
Upon connecting the conductors to the terminals, tighten the bolts holding the electronic box cover and
check the grommet sealing.
Example of output OUT1 interconnection
6.2.3. Connection of sensor in remote design
The sensor in remote design has a junction box mounted on the top of a chimney. The connecting cable
goes from the electronic unit through the cable bushing into the junction box. The cable shall be connected
with the junction box as shown in the table below. The bushing has to be well tightened.
Junction box
Meaning
Color of conductor
Electrode E1
Brown BN
Electrode E2
White WH
Earthing electrode
Blue BU (shielding of couple BN, WH)
Excitation winding
Yellow YE
Excitation winding
Green GN
Earthing electrode
Blue BU (shielding of couple GN, YE)
Protective conductor
Yellow-green GNYE (cable shielding)