Hach-Lange SC 200 Basic User Manual - Manual (Page 20)

Figure 9 Discrete input wiring connections
Table 4 Input connections
Discrete inputs Connector position - Switch input Connector position - Voltage
input
Input 1+ 3 2
Input 1- 2 3
Input 2+ 6 5
Input 2- 5 6
Input 3+ 8 7
Input 3- 7 8
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