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For Safe Measurement
2.7 For Safe Measurement
The INTER LOCK terminal is internally connected to Pin 24 of the EXT I/O terminal.
Read “Before controlling the instrument externally” (p. 13) beforehand.
Operating the instrument incorrectly will cause an electric shock because measurement voltage is
output when measurement starts.
Use the interlock function to perform measurement safely.
For example, if the signal for the open lid of the shielding box is connected to the INTER LOCK
terminal on the back of the instrument, the interlock function is activated when the lid is open.
If the pins of the INTER LOCK terminals are open-circuited with the interlock function set to [ON],
the interlock function is activated with the result that the output of measurement voltage and the
measurement function are disabled.
See “4.7 Setting Interlock Function” (p. 62).
How to connect cable for interlock
INTER LOCK terminal
1
Check the orientation
of the slots in the BNC
connector and ensure
that it ts into the
bayonet lugs of the
instrument side.
2
Align the slots in the
BNC connector along
the bayonet lugs of the
instrument, and insert
the BNC connector
into the instrument
connector.
3
Turn the BNC connector
clockwise to lock it.
BNC connector slots
Bayonet lugs of
INTER LOCK terminal
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