Hioki 8835-01 - Logic Probe Connection

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2.5 Logic Probe Connection
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DANGE
R
Logic probe input and 8835-01 share the same GND. Separate power
supply sources applied to the testing device and 8835-01 may result in
risk of electric shock and damage to the unit.
Even with the same power supply source, certain ways of wiring may
cause a variance in electric potential sending current that may damage
testing device and 8835-01. The following shows proper wiring to avoid
damage.
(1) Before connecting logic probe to testing device, connect grounded
three-core power cord (attachment) to the device to be tested and 8835-
01 and supply power from the same outlet (see fig. 1).
(2) Before connecting logic probe to device to be tested, connect GND of
device to be tested with 8835-01 functional ground terminal (see fig. 2).
Make sure that power is supplied from the same outlet.
For the functional ground terminal, see Section 2.2.
Testing
device
8835-01
Outlet
Power
Earth
Fig. 1
8835-01
Functional
g
round termin
al
GND
Fig. 2
Make sure that power is supplied from
the same outlet.
Testing
device
Groove
NOTE
2
.5 Logic Probe Connection
Connecting to the main unit
Connect the probe by aligning the groove on the plug with the ridge on the
connector.
・If no logic probe is connected, the corresponding logic waveform is displayed
on the screen at high level.
・For the 9320 and 9321 LOGIC PROBEs, carefully read the documentations
supplied with them.
・Do not connect logic probes other than supplied by HIOKI to the logic
inputs.