How To Specify The Hold Detection Section(Peak, Valley, P-P, Average) - Unipulse F377A Operation Manual

5 SETTING OF FUNCTIONS

■How to specify the hold detection section(Peak, Valley, P-P, Average)

All section
By this method, the hold detection section is externally specified by the T/H signal.
Detection starts with the T/H signal ON to perform each hold operation.
According to the ON/OFF state of the T/H signal, detection and tracking are repeated. There is no
fixed hold section.
Chapter
5
External signal
By this method, the hold detection section is externally specified by the SECTION signal to
maintain the hold value until the reset signal is turned on.The hold is released by turning on the T/H
signal as a reset signal.The next detection is started when the SECTION signal is turned on again
even if the T/H signal is not turned on.
The H/E output signal is on between the instant when the SECTION signal is turned off and the
instant when the T/H signal is turned on.
54
(Example) All section peak hold
＋
Sensor Input Value
t1
Detection
Hold Section
OFF
T/H
ON
OFF
HOLD
Button
ON
OFF
HI-LO Limit Undetermind
Judging Output
section (Note)
ON
OFF
H/E
ON
HOLD OFF ON
Status Display
PEAK*
OFF Blink
Status Display
*The status display changes depending on the hold mode.
(Example) Externally specified section peak hold
＋
Indicated Value
Detection
t1
OFF
SECTION
ON
OFF
HOLD
Button
ON
OFF
T/H
ON
OFF
HI-LO Limit
Judging Output
ON
OFF
H/E
ON
OFF ON
HOLD
Status Display
PEAK*
OFF Blink
Status Display
*The status display changes depending on the hold mode.
Indicated Value
t2
t1 t2
t
Detection
Hold Section
t3 t3
Undetermind
section (Note)
OFF ON OFF
OFF Blink OFF
Sensor Input Value
Hold Section
t
t2
t3
Decide
ON OFF
ON OFF
t1: A delay time between the instant
when the T/H signal is inputted and the
instant when the indicated value is held
1.0ms (max.)
t2: A delay time between the instant
when the T/H signal is released and the
instant when the indicated value returns
to tracking
1.0ms (max.)
t3: A minimum reset signal width
required for releasing the hold
1.0ms (min.)
Note: During the undetermined section, the
judging output varies with fluctuations in the
input waveform. However, the H/E output
remains on during the undetermined section.
Read the judging result when the indicated
value becomes stable (immediately before the
T/H signal rises).
t1: A delay time between the instant
when the SECTION signal is inputted
and the instant when the value to be
held is detected
1.0ms (max.)
t2: A delay time between the instant
when the SECTION signal is released
and the instant when the value to be
held is determined
1.08ms (max.)
t3: A minimum reset signal width
required for releasing the hold
1.0ms (min.)