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Campbell Scientific CS11-L Current Transformer User Manual

Page 5

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Table of Contents

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1.

General Description....................................................1

2.

Specifications .............................................................1

3.

Installation...................................................................2

4.

Wiring...........................................................................3

5.

ACPower Instruction ..................................................3

5.1

Using the ACPower Instruction with the CS11-L................................3

5.2

ACPower (from CRBasic Help)...........................................................4

6.

Programming ............................................................10

6.1

CR800, CR850, CR1000, or CR3000 Programming .........................11

6.1.1

Example CR1000 Program .........................................................12

6.2

CR200X-series Dataloggers...............................................................12

6.2.1

CR200(X) Program for 60 Hz.....................................................13

6.2.2

CR200(X) Program for 50 Hz.....................................................14

6.3

CR510, CR10X, CR23X Dataloggers................................................14

6.3.1

Example CR10X Program ..........................................................15

6.4

21X, CR7 Dataloggers .......................................................................16

6.4.1

Example CR21X Program ..........................................................17

6.5

CR1000 with Multiplexer Sample Program .......................................18

6.5.1

Example CR1000 program reading 32 CS11-L Current

Tranformers .............................................................................18

6.6

CR10X with Multiplexer Sample Program ........................................18

6.6.1

Example CR10X program reading 32 CS11-L Current

Transformers ...........................................................................19

Appendix

A.

Theory of Operation................................................ A-1

A.1

Typical Electrical Circuit ................................................................ A-1

A.2

Current Transformer Description .................................................... A-2

A.3

Converting a Milliamp Signal to a Millivolt Signal........................ A-3

A.4

Multiplier ........................................................................................ A-4

A.5

CS11-L Details................................................................................ A-4

A.6

Multiple Passes Through the Sensor ............................................... A-5

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