User Manual

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5.12 Setting the 8955 F/V UNIT
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The previous value is
held until the next
c
y
cle is verified.
Previous values are
reduced by half in
succession.
Hold: ON Hold: OFF
Sto
pp
a
g
e can be verified.
Sto
pp
a
g
e can be verified.
Hold ON/OFF Setting during measurement of stop action
Hold ON/OFF setting when measurement is stopped
Frequency and rotation speed measurement results are displayed after a
single cycle is verified. When measuring the phenomena called rotation
stoppage with hold set to ON, the 8855 waits endlessly for measurement
period verification, so the stoppage cannot be detected. When hold is set to
OFF and the period is not verified within the specified interval (2 times the
previous measurement sampling period), the 8855 displays the previous
signal at half its former value. This allows you to predict when measurement
will stop as the measurement value gets closer to zero.
Rotation stoppage