Iwatsu SS-560, Instruction Manual, Page: 28 / 36

Appendix
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(4) Before clamping an insulated target conductor to be
measured, confirm that the clamp can be securely closed:
press the slider until UNLOCK is no longer displayed, and hold
it until LOCK appears.
(5) Press the demagnetizing switch (DEMAG) on the terminator.
(6) Turn the zero adjustment dial on the terminator to adjust the
trace to the zero position.
3.4 Measurement Procedure
(1) Check that the system is safe, and that the preparations
described in the preceding section have been carried out.
(2) Pull the sensor slider so that the clamp opens.
(3) Clamp so that direction of arrow of electric current direction
mark displayed in sensor assembly point corresponds to the
direction of current flow through the insulated target conductor
to be measured, and so that the insulated target conductor to
be measured is in the center of the clamping window.
(4) Press the slider on the sensor head until the "UNLOCK"
indication disappears, and hold it until LOCK appears, and
check that the opening lever is firmly locked and the clamp
securely closed.
(5) It is now possible to monitor the current waveform by the
waveform measurement instrument. The output rate of this
instrument is 0.01 V/A. The current sensitivity can be derived
from the voltage sensitivity of the waveform measurement
instrument. For example, if the voltage sensitivity is
10mV/DIV, the current sensitivity is 1 A/DIV.