Campbell Scientific CS10-L and CS15-L Current Transformers - Manual (Page 5)

CS10-L and CS15-L Table of Contents
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1. General Description.....................................................1
2. Specifications ..............................................................1
3. Installation....................................................................2
4. Wiring............................................................................3
5. Programming ...............................................................3
5.1 CR800, CR850, CR1000, or CR3000 Programming................................3
5.2 CR200(X)-series Dataloggers...................................................................4
5.3 CR510, CR10X, CR23X Dataloggers ......................................................6
5.4 21X, CR7 Dataloggers..............................................................................8
5.5 CR1000 with Multiplexer Sample Program ...........................................10
5.6 CR10X with Multiplexer Sample Program.............................................11
Appendix
A. Theory of Operation................................................ A-1
A.1 Typical Electrical Circuit.................................................................... A-1
A.2 Current Transformer Description........................................................ A-3
A.3 Converting a Milliamp Signal to a Millivolt Signal............................ A-4
A.4 Multiplier ............................................................................................ A-5
A.5 CS10/CS15 Comparison ..................................................................... A-5
Figures
1. CS10-L Current Transformer .....................................................................1
2. AC load wire installed in CS10 (color of ac load wire can vary) ...............2
3. Graph of a CS15 waveform ........................................................................5
4. Graph of CS10 waveform using burst mode ..............................................7
5. Graph of a CS10 waveform using 90 samples of amperage.......................8
A-1. Generator schematic .......................................................................... A-1
A-2. Schematic of generator with current transformer .............................. A-2
A-3. Schematic of current transformer with the wire ................................ A-2
A-4. CS10 with the wire ............................................................................ A-3
A-5. Magnetic flux schematic.................................................................... A-3
A-6. Windings schematic........................................................................... A-4
A-7. CS10 schematic ................................................................................. A-5
A-8. Adding 1250 mV creates positive output .......................................... A-6
A-9. CS15 schematic ................................................................................. A-6
A-10. CS15 measurement range ................................................................ A-7
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