DESCRIPTION
The HVCP is a novel AC current probe that provides high voltage isolation via fiber optic
cables. Not only is this approach advantageous from the voltage isolation point of view, but
is also immune to typical radiated interferences and capacitances created when using long
coaxial measuring cables. The current sensor is a rogowski coil which is small, lightweight
and can be tied around conductors without breaking the current path. Both probe head and
handheld receiver are battery powered. The receiver lacks a proprietary output connector
and thus can be connected to any oscilloscope or measuring instrument via a standard BNC
connector.
A calibration feature starts a software routine that self-tests both units, zeroes the output and
adjusts the fiber optic link to minimize measurement errors due to temperature drifts or
offsets. The probe lacks the typical 50/60Hz noise seen in many Rogowski current probes.
When not in use both emitter and receiver can be configured into standby mode, which
reduces power consumption and increases battery duration. The receiver also signals the user
of a possible low battery condition in both probe head or receiver.
SPECIFICATIONS
HVCP Specification
Units
Bandwidth, rise time derived
2Hz…2MHz
Maximum measurable current
2000 (HVCP2000)
1000 (HVCP1000)
500 (HVCP500)
A
Overall accuracy
%
Receiver output connector
BNC
Receiver output range
V
Output ratio
2.5 (HVCP2000)
5 (HVCP1000)
10 (HVCP500)
mV/A
Measuring instrument minimum input
impedance
200
Calibration time
3
s
5
±
k
Ω
2
±
BR-HVCP-1119-rev2
Specifications subject to change without notice
