Connecting the Eagle™
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21
Installation of Flexible CTs
Insert the connector of the Ultra Slim Flexible CT into the 9-pin
connector on the top of the recorder. The cable branches to 2, 3
or 4 flexible clamps, each of which is snapped into a loop around
each line to be monitored. The “smart box” midway along the
cable senses the induced current and processes the information
for measurement.
The recorder’s current range must be set using ProVision,
WinScan, ProVision Mobile, or pmiScan™.
Remember, safety is always our primary concern.
The Current Transformers (CTs)
The Eagle power quality recorder can monitor voltage on up to
four channels, depending on whether you have an Eagle 220,
330, or 440. Alligator or dolphin clip leads are provided for each
channel. These leads are color-coded as follows:
Channel
Lead
Phase
Channel 1
Black
A
Channel 2
Red
B
Channel 3
Blue
C
Channel 4
Yellow
N
Common
White
Common
Attach the clip leads to voltage lines in a pattern which will monitor
the phases on which you wish to collect data. For information on
several ways to monitor power, see the information in the
following section on connecting to different types of services.
The Eagle will borrow its operating power from the voltage on
Channel 1. As soon as voltage is applied to the Channel 1 lead,
the recorder begins a two-minute countdown. During this
countdown, the Eagle will sample the voltages on each channel in
order to set the nominal voltage for the recording period. The
recorder also uses this time to detect which are connected (see
the information on CT connections above).
During the two-minute countdown, you may exchange one type of
CT for another (this applies to the Eagle recorders only).