Campbell Scientific CS420 and CS425 PDCR 1830-8388 Pressure Transducer - Manual (Page 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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