RKI Instruments Beacon 110 - Manual (Page 22)

18 Beacon 110 Operator’s Manual
be setup for “Pressure” with units of “PSI” and a full scale of “100” PSI.
Perform the following procedure to connect a 4 to 20 mA transmitter that you supply to the
Beacon 110.
1. Turn off or unplug power to the Beacon 110.
2. Open the Beacon 110 door and turn off the power switch.
3. See the transmitter’s instruction manual for instructions on how to connect wires to the
transmitter.
4. Install an appropriately rated cable bushing or conduit in the right conduit hub on the
bottom of the Beacon 110 housing.
5. Route the wires from the transmitter through the right conduit hub into the Beacon
110.
6. Connect the wires from the transmitter to the AMP terminal strip. Figure 11 below
illustrates typical transmitter wiring connections. See the transmitter instruction
manual for controller terminal connections. If shielded cable is used, connect the
cable shield’s drain wire at the Beacon 110 to the ground stud on the main PCB.
CAUTION: Do not route power and transmitter wiring through the same conduit hub.
The power wiring may disrupt the transmission of the transmitter’s signal to
the Beacon 110.
Figure 11: Generic 4 - 20 mA Transmitter Wiring
3-Wire Connection 2-Wire Connection
(DC Ground)
4 - 20 mA
+ 24 VDC
4 - 20 mA
+ 24 VDC
3-wire 4 - 20 mA
Transmitter
2-Wire 4 - 20 mA
Transmitter
BLK
GRN
WHT
RED
GRN
WHT
L
E
L
A
M
P
O
X
Y
S
BLK
GRN
WHT
RED
GRN
WHT
L
E
L
A
M
P
O
X
Y
S