Campbell CS455 Manual descarregar pdf (Página 21)

CS450/CS455 Pressure Transducer

For example, if the correct elevation of the water, as measured by a staff gauge

or other measurement device, is 2015.50 feet, and the CS450 provides a

reading of 5.76 psig, then:

5.76 psig * 2.31 ft/psig = 13.3056 ft.

So, the offset is calculated:

2015.50 ft – 13.3056 ft = 2002.1944 ft

This offset can be accounted for in the program instruction of the SDI-12

recorder.

5. Wiring

5.1 SDI-12

It is recommended to power down your system before wiring the

CS450/CS455. The shield wire plays an important role in noise emissions and

susceptibility as well as transient protection.

TABLE 5-1. SDI-12 Wiring

Color

CS450/CS455

Function

CR800

CR5000

CR3000

CR1000

CR200

Series

CR510

CR23X

CR10X

Red +12VDC 12V Battery+ 12V

Black Power Ground G G G

White SDI-12 Signal *Control Port C1/SDI-12 Control Port

Blue GND GND G G

Yellow GND GND G G

Clear Shield GND G G

*dedicated SDI-12 port on CR5000

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Campbell CS455 Manual Página 21