Hioki MR8740-50, Instruction Manual

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213
External Input and Output
Trigger output (TRIG.OUT)
The instrument outputs the signal when it is triggered. You can use this signal to control multiple
instruments, achieving synchronous operation.
How to output the signal
1
Connect each of the TRIG OUT and GND terminals to an external signal-inputting device
with wires.
Refer to “2.3 Connecting the External Control Terminals” in Quick Start Manual.
2
> [System] > [External terminal]
3
3
In the [External trigger] area, click the [Trigger out] box, and then from the list, choose a
signal output method.
Pulse  Outputs a low-level signal, and then switches it to the high level after the specified time
has elapsed.
Level at time Continuously outputs a low-level signal after triggered during the measurement.
When triggered, the instrument outputs a pulse wave, which switches from the high level (4.0 V to 5.0 V) to the
low level (0 V to 0.5 V).
Output signal Open-drain output (with voltage output), active low*
Output voltage range High level: 4.0 V to 5.0 V
Low level: 0 V to 0.5 V
Pulse width With the pulse
setting:
2 ms ±1 ms
When the level
setting:
(Sampling rate) × (Number of data points after trigger) or longer
Maximum input
voltage
50 V DC, 50 mA, 200 mW
*: The instrument is triggered when the signal voltage level switches from the high level to the low level.
12
Externally Controlling the Instrument