User Manual

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19.1 Logic Inputs
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1
9.1.1 9320 LOGIC PROBE
The number of channels 4 (common ground )
Input type Digital input Contact input
Input resistance 1MΩ±5%(0 to +5 V
)
500 kΩ(+5 to +50 V)
Contact inputs are supplied with a
voltage of +5V via the input
terminal at approximately 2 kΩ.
Maximum input voltage 0 to 50 VDC
Response time less than 500 ns
Detecting level
Digital input
(Threshold value)
Contact input
(Detecting resistance value)
1.4 V range 1.4 V±0.3 V
more than 1.5 k
Ω
less than 500
Ω
:
opened (Output L
)
:
shorted (Output H
)
2.5 V range 2.5 V±0.4 V
more than 3.5 k
Ω
less than 1.5 k
Ω
:
opened (Output L
)
:
shorted (Output H
)
4.0 V range 4.0 V±0.5 V
more than 25 k
Ω
less than 8 k
Ω
:
opened (Output L
)
:
shorted (Output H
)
In performing lead replacement, pull out the
l
ead while pressing the connector knob
downward.
Connector knob
NOTE
The 9320 is a logic probe with indicator. It is connected to the logic input unit
for the 8800 Series MEMORY HiCORDER. It is equipped with a selector for
each channel, so that the input type can be switched between digital input and
contact input for each channel. This makes it possible to use this unit for a
variety of applications such as measurement of electronic circuits and
operation timing of mechanical relays.
DIGITAL INPUT
Set the input selector to DIGITAL when measuring digital signals. In this
case, use IC clip lead. Connect the alligator clip to the circuit ground. Use
the threshold value selector to select the threshold value.
CONTACT INPUT
Set the input selector to CONTACT when measuring contact signals. In this
case, use alligator clip lead. When these lines are shorted, H level is applied
to the contact input.
Specifications
Both the 9306 and 9307 (discontinued product) can also be used.
(Not complied with the CE marking)