Hach-Lange SI792 D, SI792x D, SI792x D-FF, SI792x D-PA User Manual - Manual (Page 30)

Installation
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3.5.3.3 Oxysens sensor—si792(x) D (4–20 mA/HART)
Use
Figure 8 and Table 6 to wire the sensor to the transmitter.
Figure 8 si792(x) D wiring example for Oxysens sensor (fixed cable)
1 Wiring terminals—see Table 6
Table 6 Terminal assignments—Oxysens sensor
Terminal No. Assignment Wire color
1 Cathode (coaxial center wire) clear
5 Anode brown
6
Cable shield connection
Note: Do not connect to earth ground.
shield
7 RTD (resistive temperature device) yellow
8 RTD (resistive temperature device) blue