PN 305725901, Rev YF
Electrical Connections in the Customer Connection Junction Box
To make the connections in the Customer Connection Junction Box:
1. Access the terminals in the Customer Connection Junction Box (Figure 2-5).
2. Connect the 4–20 mA analog output and alarm contacts from the terminal
block to user recording equipment as shown in Figures 2-5 and 2-6.
3. Connect serial communication from the analyzer to the PC being used for
customer parameter setup. Refer to Figures 2-5 and 2-7.
RS-232 Out:
Connect the RS-232 cable connector on the sample system.
4. RS-485 In:
Connect the RS-485 cable to the terminal block.
OR
RS-485 Out:
Remove the factory-installed RS-485 termination plug from the RS-485 Out
connection when communicating with multiple analyzers, except for the
last analyzer in a chain.
Refer to Figures 2-5, 2-8, and 2-9.
5. Connect line power to the analyzer. Refer to Figure 2-5.
6. Optional Heated Pressure Reducer:
If the Heated Pressure Reducer was purchased, connect line power to its
terminals, as shown in Figure 2-4.2.
7. When installing external wiring to the Junction Box, use appropriate
through-wall bulkhead connections suitable for the hazardous area clas-
sication and the environmental conditions of the installation site.
Installation and Start-Up | 2-11
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