9
2581 FlowtraMag
®
Meter
Wiring Con
fi
guration
When using the 2581 FlowtraMag with frequency or Digital (S
3
L), all of the connections from the 2581 FlowtraMag
to external equipment (PLC, Datalogger, Chart Recorder, Flow meter, etc.) are made using the red and white wires.
See wiring diagrams for further details.
3-2581
Black -
Red +
White
Red
Power cable
Output cable
Shield
Black
Brown
Shield
Blue used for
GF Config App password
reset only
S
3
L / Frequency
4 to 20 mA
(EMC enhancement)
24 VDC @ 1A min.
Power Supply
+
–
DO NOT REMOVE WIRING!
Damaging or removing the power or
output cables will void warranty.
Electromagnetic Compatibility (EMC) Recommendations
Complex instrumentation systems such as the 2581 FlowtraMag and the associated devices may face challenges involving
Electromagnetic Interference (EMI). EMI interference may be coupled to the system via cables (conducted interference) or
broadcast via electrical radiation (radiated interference).
Radiated interference may be mitigated by relocating the source or increasing the distance from the source.
Metal shielding may be used.
Conducted interference can be mitigated by careful wiring practices. Because EMI may follow multiple paths, it will be necessary
to observe the e
ff
ectiveness of various grounding options.
2581 FlowtraMag Power Cable
•
In electrically noisy environments, connect the power cable shield (drain) wire to a clean low impedance earth ground.
•
If there is a single power supply for all 2581 FlowtraMag system components (Instruments, PLCs and VFDs), route signal
wiring directly to the instruments. Do not use ground points common to other wiring. Avoid creating ground loops.
•
If separate power supplies are used, connect all power grounds to a common low impedance ground.
2581 FlowtraMag Output Cable
•
In electrically noisy environments, connecting the Signal Output cable shield (drain) wire to a clean low impedance earth
ground may help reduce signal noise and preserve communication. Observe the di
ff
erence between connecting or not
connecting the shield. Avoid creating ground loops.
Frequency/S
3
L Output
-
The S
3
L/Frequency cable shares the ground with the 2581 FlowtraMag Power Supply. Use a common DC power supply
for the 2581 FlowtraMag and the monitoring
fl
ow instrument.
4 to 20 mA Output
-
If the 4 to 20 mA is used to control a highly inductive load such as a Variable Freq Drive or a DC motor, use separate
DC power supplies for the 2581 FlowtraMag and the 4 to 20 mA device, active mode should be used.
- In Passive mode the 2581 FlowtraMag loop output cable shares the ground with the 2581 FlowtraMag Power Supply.
Use the same DC power supply for the 2581 FlowtraMag and the 4 to 20 mA device.
-
In Active mode the 2581 FlowtraMag loop output cable is isolated from the 2581 FlowtraMag Power Supply.
The 4 to 20 mA receiving device can use a di
ff
erent Power Supply.
Summary of Contents for FlowtraMag GF 2581
Page 26: ...Notes...
