204
────────────────────────────────────────────────────
9.14 8940 F/V UNIT
────────────────────────────────────────────────────
Until the next cycle is
confirmed, the previous
value is held.
The previous value is
halved. Stopping can be
confirmed.
HOLD
ON HOLD
OFF
Rotation Sto
s Rotation Sto
s
When Hold is OFF (10 ms)
At frequencies of less than 100 Hz,
the signal is halved.
When Hold is OFF (1 s)
At frequencies of less than 1 Hz,
the signal is halved.
0 0
100 Hz 1Hz
200 Hz 2Hz
When Hold is ON
The initial value is held (the signal
is not halved), so the result is as
shown in the diagram below.
ctual Event
Frequency drops to 0Hz from a
certain frequency, then increases
from that point
About Hold ON/OFF
(1) Difference by ON and OFF of hold in stopping condition.
For Frequency and RPM measurement, results are displayed after one
confirmation cycle.
When measuring phenomena such as stopping of a rotating body, if Hold is
ON, stopping cannot be detected because there is no confirmation cycle.
When Hold is OFF, half of the previous measurement value is displayed if
the confirmation cycle does not occur within the specified time (10 ms or
1 s). Therefore, a condition such as stopping can be estimated by gradually
approaching zero.
(2) The following are differences depending on whether Hold is ON or OFF when
the frequency drops to 0 Hz from a certain frequency, then increases from
that point.
To Next Page
Loading...
