Hioki ST4200 Instruction Manual page 150

6.2 External Control Functions
Start trigger and stop trigger
External signals can be input to start and stop measurement.
Signal Input Method
Connect the terminal and GND to each other.
See: Connecting the External Control Terminals
Alternatively, input high-level (2.5 V to 10 V) or low-level (0 V to 0.8 V) pulse waves or a rectangular wave to
the terminal.
The electrical characteristics are as follows.
Item
Working voltage range
Pulse width
Pulse width
Maximum input voltage
High level: 2.5 V to 10 V, Low level: 0 V to 0.8 V
High-level period: 50 ms or more
200 ms or more
10 V DC
HIOKI ST4200B971-00
1 5 0
Description