16
4−3−2.
Connection with external control input
Connection with external control input of “ZERO”, “A/Z”, “A/Z OFF”, “HOLD”, “LOCK” and
“A−SEL” should be used with the contact between each terminal and “COM 1” at terminal
No.7, or with the open collector as the following figure indicates.
As for the function for each input, refer to the paragraph 7−1. External control input, contact
output.
or
Shield
● For the connection with external control input, be sure to apply
shielded cable, and shielded cable should be connected with F.G.
terminal (Terminal No.8) of the instrument.
If not connected, it may cause malfunction due to the effect from
external noise and so on.
Warning ● Connection with external control input should be made securely as
the figure indicates.
If neglected, it may cause an unexpected malfunction to the
instrument.
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