Campbell Scientific CS11-L Current Transformer - Manual (Page 13)

CS11-L Current Transformer
Option Description
3 Three-phase ‘Y’, four-conductor, configurations with three
voltage measurements and three current measurements. This
configuration is typical of commercial entry panels and
commercial distribution panels. The four conductors are
three line (or “hot”) conductors plus a neutral conductor.
See FIGURE 5-3.
FIGURE 5-3. ACPower Configuration 3
LineFrq The LineFrq parameter is the expected line frequency in
hertz. Valid entries are 60, 50, or a value between 2 and 20.
A value between 2 and 20 indicates measurements from
variable-frequency power, where LineFrq is the minimum
frequency to be measured. Note that smaller values for
LineFrq increase the measurement and processing time for
this instruction.
ChanV The ChanV parameter is the single-ended channel for the
voltage measurement. For single- and split-phase
configurations (ConfigAC = 1 or 2), the datalogger makes a
voltage measurement at ChanV. For three-phase
configurations (ConfigAC = 3), the datalogger makes three
voltage measurements on increasing consecutive channels
starting at ChanV.
VMult The VMult parameter is the potential transformer multiplier
represented as input volts per output mV. A typical value is
115 V/333 mV (or 0.345345).
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