Hach-Lange ORBISPHERE 410 User Manual - Manual (Page 32)

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Installation
3.7.4 Measurement board
The different measurement boards for the EC and TC sensors are illustrated in Figure 14 and
Figure 15 below. The type of board is easily identified by the color of the J8 connector. For EC
boards this connector is colored orange, and for TC boards it is colored black.
The colors indicated are the wire colors in the sensor cable.
NOTICE
It is extremely important that sensors are connected to the correct measurement board.
Connecting a TC sensor to an EC measurement board (and vice versa) will cause irreparable
damage to the measurement board.
Figure 14 EC Measurement board Figure 15 TC Measurement board
Figure 16 Connector J7 Figure 17 Connector J8
Connector J7 (inputs & outputs)
Measurement alarms relays
1. Common
2. Output relay 1
3. Output relay 2
4. Output relay 3
Note: Relays N.O. or N.C. depends on the jumper
position on the relays (see Measurement alarm
relays on page 31 ).
Analog current (or voltage) outputs
5. GND
6. Output 1
7. Output 2
8. Output 3
Digital inputs
9. EC sensor: Not used
TC sensor: Hold input (short circuit to pin
12)
10. Not used
11. Not used