User Manual

GCP Series User Manual
28
• Depending on the measured current frequency,
however some sound may be produced by
resonance, it has no effect on measurements.
• When performing continuous measurements, it is
necessary to be aware that the offset voltage
drifts, depending on factors such as the ambient
temperature.
• Under certain circumstances, oscillation may
occur if the probe is connected to the GCP-206P
or GCP-425P POWER SUPPLY while the power
supply is on. This does not indicate a
malfunction. Oscillation can be stopped and
operation restored to normal by opening and
closing the sensor head.
• Depending on the measured current frequency,
however some sound may be produced by
resonance,it has no effect on measurement.
• The measurement may be affected by the position
within the clamp aperture of the conductor being
measured. The conductor should be in the center
of the clamp aperture.
• When carrying out measurement, press the
opening lever until the "UNLOCK" indication
disappears, and check that the sensor head is
properly closed. If the sensor head is not properly
closed, accurate measurement will not be
possible.