Preparing For Measurement; Warm Up; Demagnetization And Zero Adjustment - YOKOGAWA 701928 User Manual

Preparing for Measurement

Warm Up

Demagnetization and Zero Adjustment

4
• When using this probe, restrictions on the maximum allowable power
supply current of the DLM series' YOKOGAWA probe interface may
prohibit using multiple active probes simultaneously depending on the
current being measured.
• The probe's current consumption depends on the current being
measured. Make sure that the total current consumption of each of the
active probes does not exceed the probe power's maximum allowable
current. See the user's manual of the digital oscilloscope being used for
the probe power's maximum allowable current. For this probe's current
consumption, see page 10, "Measured Current Values and Current
Consumption (Typical)."
1.
Set up the probe and a DLM series or other digital oscilloscope with the
YOKOGAWA probe interface.
2.
Before measurement, insert the probe interface completely into the
input of the oscilloscope and confirm that a secure connection has
been established between the BNC connector and interface pins. When
inserted, you will hear a click as the latch closes, indicating that the
connection has been made.
Immediately after connecting the probe, heat emitted from the probe itself
causes the output offset voltage to drift. After applying power, the probe should
nearly stabilize about thirty minutes after connecting it. Before using the probe,
allow it to warm up for at least thirty minutes.
• When removing the probe from the oscilloscope, be sure to release the
lock first, then pull out the probe by the connector. The probe interface
can be damaged if you pull forcibly without releasing the lock, or if you
pull by the cable.
• Do not demagnetize the probe while the clamp is positioned around the
conductor under test. The demagnetization procedure can inject current
into the conductor under test, possibly resulting in damage to connected
components. For the same reason, make sure that the probe clamp
is not positioned around a conductor under test when connecting this
probe to the oscilloscope. A demagnetizing waveform can be generated
when power is supplied.
CAUTION
CAUTION
IM 701928-01E