Hach CD300 Benutzerhandbuch Seite 18

Electrical shock hazard. Externally connected equipment must have an applicable country safety
standard assessment.
Make sure that the equipment is connected to the instrument in accordance with local, regional and national
requirements.
The controller has six integrated 4–20 mA analog outputs that are used for analog signaling or to
control external devices.
Use the external trigger input to start a measurement. The trigger input can be operated with a
12–24 V DC (± 5%) voltage. When the trigger is set to off, a measurement is started for all of the
sensors that have automatic measurement enabled.
Note: The manufacturer recommends to disable the automatic measurement when an external trigger is used.
1. Remove the power to the instrument.
2. Open the controller cover. Refer to
3. Put the cable through the relay strain relief fitting.
4. Prepare the wires. Refer to the wiring requirements in
5. Pull to remove the connector.
6. Install each wire in the connector. Refer to
7. Tighten the strain relief fitting.
8. Close the controller cover.
Figure 7 Analog outputs
18 English
W A R N I N G
N O T I C E
Open the controller cover
Specifications
Figure 7 and Table
on page 10.
on page 3.
7.