Hioki 3158 - Page 87

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6.1 External I/O Terminal
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A
Photocou
p
ler
ISO.DCV
2.2 kΩ
ISO.COM
External I/O Terminal
I
(2) Control using the transistor (example)
For control using a transistor or FET, make connections as shown below.
Design the signals so that 6 mA is absorbed into each of the signals. (Connect
the EXT-E signal (Pin 7) and ISO.COM (Pins 15 to 18) to enable external I/O
signals.)