Campbell CS475 Manual de usuario descargar pdf (Pagina 37)

A-1

Appendix A. Replacing the Cable

The sensor is fitted with a cable for connection to the datalogger. The following

procedure is for replacing the original cable (see Figure A-1 and Table A-1).

1. Unscrew the housing side compartment screw cap.

2. Loosen the cord grip on the cable entry.

3. Remove approximately 10 cm (4 inches) of the cable mantle.

4. Strip approximately 1 cm (0.4 inches) of the insulation from the end of the

individual wires.

5. Insert the cable into the sensor through the cable entry.

6. Lift the opening levers of the terminals with a screwdriver.

7. Insert the wire ends into the open terminals.

• Connect the Power Supply +12 Vdc to the terminals marked 1 (+).

• Connect the Power Supply Ground to the terminals marked 2 (–).

• Connect the Data Line to the terminals marked 3 (data).

8. Press the opening lever of the terminal down. You will hear the terminal spring

closed.

9. Check that the wires are firmly connected in the terminal by lightly pulling on

them.

10. Connect the screen to the internal ground terminal and the external ground

terminal to potential equalization (ground).

11. Tighten the cord grip on the cable entry. The seal ring must completely

encircle the cable.

12. Place the housing side compartment screw cap on and tighten to ensure a

mechanical seal.

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Campbell CS475 Manual de usuario Pagina 37