Campbell-scientific EnviroSCAN Sentek Water Content Profile Probe Manual do Utilizador descarregar pdf (Página 25)

Appendix B. Normalization and

Function Test

Normalization is the setting of the range over which the electronics is effective.

This range is bounded by the two extremes of air and water.

B.1 Normalization

Connect +12 Volts DC and ground to the green connector at the top of the

probe as shown in Figure B-1.

FIGURE B-1. SDI-12 Interface Power Connection

Connect the Intelligent Probe Utility Cable (P/N SEN06020) to the TTL port

near the top of the probe at the location indicated in Figure B-2.

FIGURE B-2. SDI-12 Interface TTL Connection

Connect the other end of the utility cable to the serial port on a PC. This may

require a 9 to 25 pin serial adaptor. CSI serial cable (P/N 7026) is available as

an adaptor.

B-1

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Campbell-scientific EnviroSCAN Sentek Water Content Profile Probe Manual do Utilizador Página 25