GroundFlex™ Adapter Model 6474
7
2.2 GroundFlex
™
Sensor
The GroundFlex
™
sensors are placed around a conductor (pylon leg or pole) and
closed using a screw connector. This closed loop is then used to make a contact-
free measurement of the current flowing in the conductor it is wrapped around.
These sensors are like current measurement clamps but are able to enclose
objects that are much larger. GroundFlex
™
sensors are available in lengths of up
to approx 16 ft (5m) and can be placed around objects (such as pylon legs) up to
in approx 5 ft diameter (1.5m).
2.2.1 Calibration of GroundFlex
™
Sensors
GroundFlex
™
sensors
need to be calibrated before the first use. Calibration is
necessary for a new sensor, one that is no longer identified, or when a sensor has
been replaced. The calibration coefficients are then recorded in the Model 6474.
NOTE:
Do not move or touch the GroundFlex
™
sensor or the calibration loop
during the calibration. This could cause errors.
