Hach-Lange SI792 P, SI792x P, SI792x P-FF, SI792x P-PA User Manual - Manual (Page 29)

Installation
27
3.5.3.2 pH/ORP sensors with solution ground wiring
Use Figure 7 and Table 4 to wire the sensor to the transmitter.
7
RTD (resistive temp
device)
red green
8
RTD (resistive temp
device)
white white
Figure 7 Wiring for pH/ORP sensors with solution ground
1 Wiring terminals—see Table 4
2 Cable shield connection
Note: Do not connect to earth ground.
Table 3 Terminal assignments—pH/ORP sensors (Continued)