Connect The Model 3700 To The Sensor - Emerson Micro Motion 3700 Installation Manual

3.2

Connect the Model 3700 to the sensor

• If you are installing the Model 3350 controller, this step is not required. Go to
3.4.
• To connect the Model 3700 transmitter to a Micro Motion sensor, follow the
instructions in this section.
3.2.1 Installation options
The Model 3700 can be wired to the sensor in either of the following configurations:
• 4-wire remote transmitter (requires a 4-wire cable). See
• Remote core processor with remote transmitter (requires both a 4-wire and a 9-wire
cable). See
3.2.2 Wiring instructions for 4-wire remote installations
1. Prepare the cable as described in the sensor documentation.
2. Connect the cable to the core processor as described in the sensor documentation.
3. To connect the cable to the transmitter:
a. Identify the wires in the 4-wire cable.
b. Connect the four wires from the core processor to the appropriate terminals on the
Table 3-2: Transmitter terminals for 4-wire cable
Terminal
13
14
15
16
(1) Wire colors apply to only 4-wire cable supplied by Micro Motion.
Installation Manual
Figure 1-6 and Section
Use the 4-wire cable supplied by Micro Motion. This cable consists of one pair of 18
AWG (0,75 mm 2 ) wires (red and black) for the VDC connection, and one pair of 22
AWG (0,35 mm 2 ) wire (green and white) for the RS-485 connection.
transmitter.
See Table 3-2 and Figure 3-3
processor).
• Do not leave bare wires exposed.
• Do not ground the shield or drain wires at the transmitter.
3.2.3.
(standard core processor) or
(1)
Wire color
Red
Black
White
Green
Section
Figure 1-5 and Section 3.2.2.
Figure 3-3 (enhanced core
Function
VDC+
VDC–
RS-485A
RS-485B
Wiring
17