Hach Polymetron 9500 User Manual page 20

Potential electrocution hazard. In order to maintain the NEMA/IP environmental ratings of the enclosure, use only
conduit fittings and cable glands rated for at least NEMA 4X/IP66 to route cables in to the instrument.
Three discrete inputs are provided for switch closure inputs or logic level voltage inputs. Make wiring
connections and configure jumper settings to the controller as shown in
Figure 10.
Note: Figure 9 shows the back of the controller cover and not the inside of the main controller compartment.
Figure 9 Discrete input wiring connections
Discrete inputs
Input 1+
Input 1-
Input 2+
Input 2-
Input 3+
Input 3-
Figure 10 Jumper settings
1 Input 1 configuration jumpers
2 Input 2 configuration jumpers
18 English
W A R N I N G
Table 4 Input connections
Connector position - Switch input
3
2
6
5
8
7
3 Input 3 configuration jumpers
4 Jumpers positioned to the left for
switch inputs
Figure 9, Table 4 and
Connector position - Voltage
input
2
3
5
6
7
8
5 Jumpers positioned to the right
for voltage inputs