3-18
IM 701240-01E
Precautions to Be Taken When Connecting Probes
• When connecting the probe for the first time, perform phase correction of the probe as
described in section 3.8. If you do not, frequency characteristics will not be flat, and
measurements will not be correct. Make the phase correction on each channel to
which the probe is to be connected.
• You cannot perform phase correction of the probe on the frequency module (701280
(FREQ)). Perform phase correction of the probe on another module before connecting
the probe to the 701280 (FREQ).
• If the object to be measured is connected to the instrument directly, without using a
probe, correct measurement cannot be performed due to the input impedance.
• When using a voltage probe other than the isolated probe (700929), correct measured
values cannot be displayed if the probe’s attenuation is not 1:1, 10:1, 100:1, or
1000:1.
• Follow the instructions given in section 5.6 to set the probe attenuation to match the
actual value using the soft key menu. If they do not match, measured values cannot
be read correctly.
Connecting Current Probes
When using current probes* made by YOKOGAWA, use the probe power supply (option)
on the right side panel of the SL1400.
*
Current probes made by YOKOGAWA: 701930, 701931, and 701933
For details on the connection procedure, see the manual that comes with the current
probe.
CAUTION
Do not use the probe power supply terminals (option) on the right side panel of
the SL1400 for purposes other than supplying power to the current probes. Also,
be sure to use only the number of probes allowed. Otherwise, the device
connected to the probe power supply terminal may break.
3.7 Connecting Probes