Hach ANATEL PAT700 - Page 33

Page 31
Installation
The following two wiring diagrams Figure 15 and Figure 16 illustrate the digital input
wiring:
Figure 15 Digital input wiring external power - Isolated
Input 1
Input 2
12VDC +
(50 mA Max)
1
2
3
4
5
PAT700 Internal Circuit
External Control
5- 30 Volts DC
+
Optional power from control system
OR
Relay
NPN
Control System
Figure 16 Digital input wiring internal power - Non-isolated
Input 1
Input 2
12VDC +
(50 mA Max)
1
2
3
4
5
PAT700 Internal Circuit
External Control
OR
Relay
NPN
Control System