Campbell-scientific CS420 and CS425 PDCR 1830-8388 Pressure Transducer Manual do Utilizador descarregar pdf (Página 20)

CS420-L and CS425-L Pressure Transducers

8.1.2 Multiplexer Connection

Multiplexer Datalogger

COM H1 H1

COM L1 L1

COM H2 H2

COM L2 L2

12V 12V

G G

RES C1

CLK C2

Shield G

8.1.3 CRBasic Multiplexer Examples

8.1.3.1 CR800, CR850, and CR1000 Program

Although the following program was written for the CR1000, the CR800 and

CR850 could use the same program.

'CR1000

'For use with an AM16/32 in a 6 wire configuration, with four sensors.

Public WellDepth(4)

Dim LoopCount

Dim Mult(4)

Dim Offset(4)

DataTable (WellData,1,-1)

DataInterval (0,30,Sec,10)

Sample (4,WellDepth(),FP2)

Maximum (4,WellDepth(),FP2,False,True)

Minimum (4,WellDepth(),FP2,False,True)

EndTable

BeginProg

Scan (5,Sec,0,0)

'Load multiplier and offset for each individual sensor

Mult(1) = 2.2975

Mult(2) = 1.0560

Mult(3) = 3.0001

Mult(4) = 1.9821

Offset(1) = .36781

Offset(2) = .4011

Offset(3) = .2103

Offset(4) = 1.0029

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Campbell-scientific CS420 and CS425 PDCR 1830-8388 Pressure Transducer Manual do Utilizador Página 20