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12
OPERATION
• EXTERNAL FREQUENCY COUNTER
USE AS EXTERNAL FREQUENCY COUNTER
You can take INT /EXT selector switch easily, if you want to use, as an external
frequency counter, press the push button switch@
( I :
EXTERNAL FREQUENCY COUNTER MODE)
Connect external signal source to EXT INPUT BNC@, and then input frequency is
displayed on 4 digit green L.E.D display.
The overflow indicator
(2)
will be lighting when desired measuring frequency range is
overflowed.
In above case, please select higher frequency range switch®
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