Campbell Scientific CS11-L Current Transformer - Manual (Page 9)

CS11-L Current Transformer
4. Wiring
The CS11-L uses a single-ended analog channel as follows:
Wire Color Terminal
RED or AG (VX on CR200X)
WHITE SE
BLACK or AG
Shield or AG
CS11-L
WHITE
RED
BLACK
CLEAR
Wire Color
WHITE
RED
BLACK
CLEAR
All Other
Dataloggers
SE
CR200X
Datalogger
SE
VX (EX) 1250 mV offset
Cable
FIGURE 4-1. CS11-L schematic
If multiple wire passes are needed, see the end of the first paragraph in
Appendix A.6, Multiple Passes Through the Sensor.
5. ACPower Instruction
5.1 Using the ACPower Instruction with the CS11-L
The CS11-L can be measured by programming the datalogger using the
ACPower Instruction (found in the CR8X0, CR1000, CR3000 dataloggers).
The ACPower instruction is designed to measure the voltage, frequency and
amperage of an AC load, then calculate the phase angle, harmonic distortion of
both the voltage and the current, as well as the real power of the load. In order
to obtain all of these measurements and values, another sensor, a potential
transformer, is required in addition to the CS11-L sensor. The datalogger will
measure voltage signal and frequency of the potential transformer. It will also
measure the current of the CS11-L.
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