Hioki 8860-50, Instruction Manual

Page: 175 / 490

6.9 Trigger by Timer or Time Intervals (Timer Trigger)
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6
Chapte
r 6
T
rigger Setting
s
Description
About start and stop times
• Start and Stop times should be set as times elapsed since the START key was
pressed.
• When the trigger mode is [Single] and the timer trigger is [On] , only one timer
trigger specified as the Start trigger is recognized. Interval and Stop time trig-
gers are ignored.
Controlling Recording Start and Stop Arbitrarily
To start recording manually (by pressing the START key) and set a timer to
stop
Move the cursor to the [Start] button, and select F1 [Off] .
This disables the Start timer. Set only the Stop time.
Recording (or Trigger Wait) begins when you press the
START key, and ends at
the specified Stop time.
To start recording by a timer and stop manually (by pressing the STOP key)
Move the cursor to the [Stop] button, and select F1 [Off] .
This disables the Stop timer. Set only the Start time. Recording (or Trigger Wait)
begins at the specified Start time, and ends when you press the
STOP key.
However, if the [Single] trigger mode is selected, recording stops automatically
after acquiring the specified data length.
To start and stop recording manually
Select F1 [Off] to disable timers for both [Start] and [Stop] buttons.
Recording (or Trigger Wait) begins when you press the START key, and ends
when you press the STOP key.
To record an interval with specified Start and Stop times
Set the trigger mode to [Repeat] , and set all other trigger sources [Off] .
However, triggering is disabled during processing (auto save, auto print, wave-
form display processing and calculation) from the end of recording to the next
Trigger Wait state, so depending on measurement settings, recording may not
occur within the specified interval.
When the interval is set shorter than the recording length (recording dura-
tion)
Triggers applied during recording are ignored.
About Stop Time and Recording Length
The stop time is function-dependent:
• Memory function and FFT function: Measurement data is acquired for the
specified recording length, then recording stops.
• Recorder function and REC&MEM function (both Recorder waveform and
Memory waveform): Measurement data continues to be acquired until the
specified Stop time.
Timer
START
STOP
Timer
STOP
START
Recording
Length
Recorder Function
REC&MEM Function
Memory Function
FFT Function
Recording stops at Stop Time
Recording stops after
Recording Length
T T
Stop Time
Interval
Relationship Between Last Recording Length and Stop Time
Recording stops after
Recording Length