Digital Inputs - Hach ORBISPHERE 51 Série Manuel D'utilisation Simplifié

Connector P3
Ethernet RJ 45. Connect the instrument to the local network by passing an ethernet cable through
the ethernet cable gland (refer to
P3 connector illustrated in
4.6.4 Measurement board
Figure 6 Measurement board
Connector J7 (inputs & outputs)
The numbers listed below refer to the 16 available J7 connections (from left to right) in
Measurement alarms relays:
1. Common
2. Output relay 1
3. Output relay 2
4. Output relay 3

Digital inputs:

9. Hold input. To deactivate the sensor from a PLC system, connect a dry
contact between J7.9 and J7.12
Note: It is recommended to use this functionality in order to extend the sensor lifetime for
installations with a CIP process that can damage the spot.
10. to 11. Not used
12. Digital GND
13. to 16. Not used
Instrument connections
Figure 4.
on page 10) and connecting to the
Figure 7 Connector J7
Analog current
outputs:
5. Analog GND
6. Output 1
7. Output 2
8. Output 3
Figure 7.
English 13