6. Lace the wires through the fingers
on the battery holder before
attaching to the terminal block.
7. Attach the sensors (Fig. 6) to the
appropriate pin according to your
specific sensor documentation and
following the Sensor Connection
guidance below. A label inside the
unit shows the layout of the pins
(Fig. 7).
Take care to not damage the PCB
surface.
SENSOR 1 (+) = output power to the
sensor
SENSOR 1 RTN = reference/ground
for the unit
SENSOR 1 (-) = return current from
the sensor, unit uses
for measurement
8. Trim and cap any
unused sensor wires.
9. Tighten the terminal
block screws using
the #0 Phillips
screwdriver.
10. Ensure that the cable
gland is tight around the cable and
the nut that secures the cable gland
to the housing is tightened firmly.
Close the lid of the module (Fig. 8).
Fig. 8: Closed module with cable installed
AIG-10043-03
Smart Gateway
Installation Guide
Fig. 7: Pin layout label
Fig. 6: Attach sensors
Sensor Connection
If you are using a 2 wire sensor:
Connect the sensor power to the
terminal labeled “”. Connect
the sensor 4-20 mA output to terminal
labeled “Sensor –”.
If you are using a 3 wire sensor:
Connect the same as a 2 wire sensor,
except in addition, connect the ground
wire of the sensor to the terminal
labeled “Sensor RTN”.
If you are using a 2 wire sensor that has
its own power supply separate from the
Smart Gateway:
Connect the sensor 4-20 mA output
to the terminal labeled “Sensor –”.
Connect the sensor (or the sensor’s
power supply) ground to the terminal
labeled “Sensor RTN”.
