Measuring Methods - Iwatsu SS-540 Instruction Manual

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2.3 Measuring methods

1. Check to make sure that all safety requirements have been
satisfied and all preparations for measurement (as
described in the previous section) are complete.
2. Pull the open/close lever on the sensor unit to open the
sensor head.
3. Make sure the arrow on the sensor head showing the
direction of current flow matches the direction of the current
flow to be measured. Then clamp the insulating target
conductor to be measured so the conductor is in the center
of the clamp window.
4. Press the open/close lever on the sensor head unit until the
"UNLOCK" marking is not visible. Check to make sure that
the open/close lever is locked securely and the sensor
head is tightly closed.
5. You may now monitor the current waveform on the
oscilloscope. The output sensitivity of this instrument is 0.1
V/A. Convert the voltage sensitivity values on the
oscilloscope to current sensitivity values. For example, if
the voltage sensitivity on the oscilloscope is 10 mV/div, the
current sensitivity will be 100 mA/div.
Chapter 2 Operation