IV
USING THE PRODUCT SAFELY
■
Warning Item for the Measurement
● When you measure a part of a high voltage, be careful not to touch a hand
to a measurement part directly. There is a risk of an electric shock.
● Be sure to connect the probe or the cable and the ground side of the input
connector to the ground potential (ground) of the substance measured.
Since the chassis of this instrument is connected to the ground of the
input block, connecting the earth lead of the probe to the potential
floating from the ground potential may result in the following:
Electric shock
A high current flows and damages the substance measured, this
instrument, and other connected device.
The following parts are connected to the chassis:
Probe for each channel and ground side of the input BNC connector
Grounding conductor of the accessory 3-core power cord
Ground pin for an interface signal
“Bad example”
Prohibition
When measuring the floating potential, a differential method of
measurement is recommended ( refer to the figure below ).
“Good example”
At connecting as Bad
Example, +90V and chassis
are shorted, and damages
substance a measured.
Therefore do not make such
connection.
If the instrument is not
grounded, a potential of the
chassis is +90V.
Ground a chassis, in order to
prevent an electric shock
accident.
Setting of panel switches of an
oscilloscope
CH2 INV: ON (CH2 inverted)
ADD : ON (CH1+CH2)
Grounding
Oscilloscope
Earth Lead
Probe
Grounding
Oscilloscope
Grounding
Grounding
Earth Lead
Probe
Содержание DCS-4605
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