Fluid Components International FS2000L - Manual (Page 4)

Fluid Components International LLC NuTec ® Series
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4 Doc. No. 06EN003348 Rev. D
Control Circuit Enclosure Diagrams
Section C - Instrument Wiring
There are three basic wiring configurations with the main difference being the way the instrument is powered. Only qualified personnel are to wire or
test this instrument. The operator assumes all responsibilities for safe practices while wiring or troubleshooting. One of the following wiring instruc-
tion and diagrams illustrate the requirements for power input, alarm outputs and safety instructions for the unit being installed.
ALERT: The Instrument contains electrostatic discharge (ESD) sensitive devices. Use standard ESD precautions when handling
the instrument.
Recommended Minimum Wire Gauge
The following wire gauge chart specifies the correct wire for the distance to the power source or loads. Note that the open collector option is limited
to 50 ft. It is also recommended that the open collector cable is shielded and that it is not run in the same conduit with the power source or the relay
load.
Connection
Maximum Distance for Wire Gauge
10 ft.
(3M)
50 ft.
(15M)
100 ft.
(30M)
250 ft.
(76M)
500 ft.
(152M)
1000 ft.
(305M)
Input Power 100 – 240Vac 22 20 18 16 14 12
Input Power 24(AC or DC) 24 24 22 22 20 18
Loop Power 24 24 22 22 20 18
Relay Output 18 16 14 12 10 x
Open Collector Output 24 22 x x x x
Grounding
The switch must be properly ground for safety and operational reasons.
100 –240 Vac input power units: A minimum gauge of 14AWG is required on the earth ground terminal. This connection should have a resis-
tance to earth ground less than 1 ohm. Do not connect the earth ground to DC ground (terminals marked “GND” or “COM” or “-”).
24 volt and Two wire (loop powered) units: The earth ground wire will be attached to the inside of the enclosure on a grounding screw along with the
ground wire from the control circuit. Use the recommended wire gauge specified for the input power and distance listed in the chart above. Do not
connect the earth ground to DC ground (terminals marked “GND”, “COM” or “-”).