Connect a digital sc sensorNote: To connect an analog sensor, refer to the instructions supplied in the moduleor sensor manual.A digital sc sensor can be connected to the controller using the keyedquick-connect fitting (Figure 9). A digital sensor can be connected with thecontroller powered on or off.When a sensor is connected with the controller powered on, the controllerdoes not automatically perform a device scan. To make the controllerperform a device scan, navigate to the Test/Maintenance menu and selectScan Devices. If a new device is found, the controller performs theinstallation process without further user action.When a sensor is connected with the controller powered off, the controllerwill perform a device scan when it is powered on again. If a new device isfound, the controller performs the installation process without further useraction.Retain the connector cap to seal the connector opening in case the sensormust be removed.Figure 9 Digital sensor quick connect1.Connect the optional digital communication outputThe manufacturer supports Modbus RS485, Modbus RS232 and ProfibusDPV1 communication protocols. The optional digital output module isinstalled in the location indicated by item 4 in Figure 7 on page 10. Referto the instructions supplied with the network module for more details.For information about Modbus registers, refer to http://www.hach-lange.com or http://www.hach.com.Install a Secure Digital (SD) memory cardFor instructions on how to install an SD card in the controller, refer toFigure 10. Information on how to use the SD memory card can be foundin the Using the Secure Digital memory card section.To remove an SD card, push down on the edge of the card and release,then pull the card up and out of the slot. After the card is removed, closethe slot cover and tighten the cover screws.Figure 10 SD card installation16 English