Hach-Lange ORBISPHERE 510_51x Basic User Manual - Manual (Page 11)

Figure 5 EC measurement board Figure 6 TC measurement board
Figure 7 Connector J7 Figure 8 Connector J8
Connector J7 (inputs & outputs)
The numbers listed below refer to the 16 available J7 connections (from left to right) in
Figure 7 .
Measurement alarms relays:
1. Common
2. Output relay 1
3. Output relay 2
4. Output relay 3 Analog current (or voltage) outputs:
5. GND
6. Output 1
7. Output 2
8. Output 3
Digital inputs:
9. EC sensor: Not used
9. TC sensor: Hold input (short circuit to pin 12)
10. Not used
11. Not used
Analog inputs (when ext. press. sensor is directly
connected):
12. EC sensor: Not used
12. TC sensor: GND
13. Green: Input ext. press. sensor P+
14. White: Input ext. press. sensor P-
15. Red: Output ext. press. sensor +
16. Black: Ground (GND) Analog inputs (when ext. press. sensor extension,
Part N° 32548.xx, is used):
12. EC sensor: Not used
12. TC sensor: GND
13. Green: Input ext. press. sensor P+
14. Yellow: Input ext. press. sensor P-
15. White: Output ext. press. sensor +
16. Brown: Ground (GND)
Note: On multi channel systems, the external pressure sensor must be wired to the channel 1 measurement board, but the signal is
used to compensate all channels.
English 11