Campbell-scientific CS10-L and CS15-L Current Transformers Manuale Utente Scaricare il pdf (Pagina 11)

CS10-L and CS15-L Current Transformers

25 Samples of Amperage on CR200(X) Datalogger (60 Hz)

or 30 Samples of Amperage on CR200(X) Datalogger (50 Hz)

-80

-60

-40

-20

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Instanteneous Amps

CS15-L waveform

FIGURE 3. Graph of a CS15 waveform

CR200(X) Program for 60 Hz

'CR200(X) Series Datalogger

' Program name: CS15-LManual.cr2

'date: 4 Mar 2009

'program author: Brad Maxfield

Const Samples = 25 ' 25 samples for 2 waves of 60 Hz.

'Const Samples = 30 ' 30 samples for 2 waves of 50 Hz.

Public Crnt_A

Public mV(Samples)

Dim Counter

'Define Data Tables

DataTable (Test,1,-1)

DataInterval (0,1,min)

Average (1,Crnt_A,False)

Maximum (1,Crnt_A,False,0)

EndTable

'Main Program

BeginProg

Scan (1,Sec)

ExciteV (Ex1,mV2500)

For Counter = 1 To Samples

VoltSe (mV(Counter),1,1,1.0,-1250)

ExciteV (Ex1,mV0)

RMSSpa (Crnt_A,(Samples-0),mV(1))

Crnt_A=Crnt_A*0.2 ' Multiplier for sensor

If Crnt_A<0.15 Then ' Eliminate noise below 0.15 amps.

Crnt_A = 0

EndIf

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Campbell-scientific CS10-L and CS15-L Current Transformers Manuale Utente Pagina 11