Campbell Scientific CS11-L Current Transformer - Manual (Page 7)

CS11-L Current Transformer
1. General Description
Campbell Scientific’s CS11-L (FIGURE 1-1) detects and measures the AC
current along an electrical wire using the magnetic field that is generated by
that current. The CS11-L does not have direct electrical connection to the
system. The sensor outputs a millivolt signal allowing it to be directly
connected to our dataloggers.
The CS11-L is compatible with our CR200X, CR800, CR850, CR1000,
CR3000, CR500, CR510, CR10(X),CR21X, and CR23X dataloggers. It uses
CR Magnetic’s CR8459 Current Transducer to measure the approximate
current over a range of 0 to 200 A.
The CS11-L has been developed in such a way that it can be used on most of
the datalogger models past and present, including the CR200(X). However, the
CR200(X) datalogger requires slightly different wiring than the other
dataloggers and requires derating of the maximum amperage to 125 amps.
FIGURE 1-1. CS11-L Current Transformer
2. Specifications
Example Applications:
• Motor or generator load conditions
• Efficiency studies
• Intermittent fault detection
• Submetering
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