Data Sheet

Typical performance characteristics
Performance
Low Frequency
The low frequency bandwidth is set to attenuate
any large fundamental frequency currents and
magnetic fields. The CMC06 integrator has a gain
of typically -90dB at 50Hz, this means that if there
is a 100Arms, 50Hz current passing through the
coil the output of the CMC will be <0.2mVrms.
Typical low frequency amplitude response
High Frequency
The high frequency bandwidth of the CMC is
determinded by the coil length, the cable length
and the integrator design. The high frequency
bandwidth for each model is quoted for a 2.5m
cable and a 1000mm coil in the specification table.
Typical high frequency response --
Model CMC06 -- 50mV/A
Showing the variation of HF performance with
coil length, 500mm coil up to 5000mm coil
Typical noise – Model CMC03
Ch1 - CMC03/B/2.5/1000
(Peak current 75A, Sensitivity 100mV/A)
Timebase 2ms/div
Noise
The low noise integrator design allows better
measurement accuracy of high frequency currents
and enables a wide dynamic measurement range.