Endress+Hauser SpectraSensors SS500 - Changing the 4-20 Ma Current Loop Mode; To Change the 4-20 Ma Board from Source to Sink; Table 3-1 Output Signal Connections

Installation
Hardware Installation and Maintenance Manual 3
–9
7. Connect the digital output relays according to the call-outs shown in
Figure 1–6 or Figure 1–7.
8. Reinsert the mating terminal block into its base and verify that each
connection is secure.
9. Close and tighten the electronics enclosure cover.
Changing the 4-20 mA Current Loop Mode
By default, the 4-20 mA current loop output is factory set to source current. In
some instances it may be necessary to change the 4-20 mA current loop output
in the field from source to sink. The work must be performed by personnel
qualified in electronics assembly.
Tochangethe4‐20mAboardfromsourcetosink
1. Disconnect power to the analyzer and open the electronics enclosure
cover. Take care not to disturb the electrical assembly inside.
2. Locate the 4-20 mA board(s) in the center of the electronics
enclosure, as shown in Figure 1–6 or Figure 1–7.
3. Remove the jumper (JMP1), shown in Figure 3–5, connecting the
center hole to point “A.”
Table 3–1 Output signal connections
Terminal Description D-Conn Color
1 Ch. A Serial RX Pin-3 Black
2 Ch. A Serial TX Pin-2 Red
3 COM Serial Ground Pin-5 Shield
4N/C
5N/C
6 Ch. A Current Loop +
7 Ch. A Current Loop -
8N/C
9N/C
10 N/C
11 N/C
12 N/C
NOTE: The description “N/C” indicates no connection.