Hioki 3504-40 C HiTester, Инструкция по эксплуатации

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7.3 About Input and Output Signals
126
Electrical Characteristics of Output Signals ________________________
The output signals are photocoupler open collector output. Inside the unit, a 3.3
k

pull-up resistor is used to connect to the external DC power source (EXT
DCV).
Relation
Between
External DC
Power Source
Voltage and
Output Signal
Voltage/Current
It is not possible to directly connect a circuit that has a maximum input voltage
V
IL
of 0.8 V or more. Add a transistor and buffer circuit capable of driving so that
the V
IL
becomes less than 0.8 V.
Timing of Input Signals _________________________________________
Set the judgment conditions with the comparator and input a trigger signal from
EXT I/O in that state. (The trigger setting is set to external trigger.)
If you press
, the judgment result is output from the EXT I/O comparator
result output signal line.
7.3 About Input and Output Signals
External DC
Power
Source
Output Signal (Internal Pull-up Resistor of 3.3 k

)
High Level
Low Level (Output Current)
(10 mA) (30 mA)
5 5
0.9 V
12 12 1.1 V
24 24
TRIG
(Start-of-measurement signal)
INDEX
(Analog end of measurement signal)
EOM
(End of measurement signal)
HI, IN, LO, CV-ERR
(Comparator result output)
T2
T1
T5
T4
Judgment
result
T3
Last judgment
result
Measurement Timing
Example
ON OFF
OFF
ON OFF
T6
*1
ON
OFF
ON
OFF
ON
ON
You can use a communication command to select whether the judgment
results for comparator measurement and BIN measurement are reset when
the start-of-measurement signal is input or updated when measurement ends.
See
"Setting and Query of Output of Judgment Result Signal Line in EXT I/O" (p. 221)
*1 Reset at the same time as TRIG: HIGH
Not reset at the same time as TRIG: LOW