Measurement Board - Hach ORBISPHERE 51x Manual Básico Del Usuario

4.6.4 Measurement board

The different measurement boards for the LDO sensors are illustrated in
Figure 6 LDO measurement board
Figure 7 Connector J7
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
10. to 11. Not used
12. Digital GND
13. to 16. Not used
Figure 6 .
Figure
Analog current (or voltage)
outputs:
5. Analog GND
6. Output 1
7. Output 2
8. Output 3
English 13
7.