Emerson Net Safety SC311 Reference Manual page 10

Install
May 2019
Figure 2-4: External Grounding Point
A. External earth ground point
2.5.3 Wire sensor
WARNING
Do not open the transmitter, sensor, or junction box enclosure when in a classified area
or when an explosive atmosphere may be present unless the power to the sensor has
been removed.
When connecting cable wires, use a small flathead screwdriver to gently press down and
hold the spring connector open. Insert the appropriate wire into the open connector hole,
releasing the screwdriver to secure the wire. Refer to
Figure 2-5: Terminal Connection
Connect sensor wires to the sensor terminals in the applicable transmitter. Refer to the
Table 2-1
Table 2-1: Sensor wires and Millennium II series Terminal definitions
Sensor wire
Marked
10
for the wire colors and their purposes..
White Red
+Vdc Sig A
Figure 2-5.
Blue Black
Sig B COM
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