Hioki RM3542-50, Инструкция по эксплуатации

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3.4 Setting Measurement Start Conditions (Trigger Source)
31
3
Measurements can be started in two ways.
Continuous measurement (
:INITIATE:CONTINUOUS ON
) is the normal trigger state when operating from
the front panel. Selecting the internal [INT] trigger source activates continuous triggering ("free-run"). When
external [EXT] triggering is selected, each external trigger event initiates one measurement.
Continuous measurement can be disabled by sending the
:INITIATE:CONTINUOUS OFF
command via
RS-232C or GP-IB. When continuous measurement is disabled, trigger acceptance is controlled only by the
host (computer or PLC).
See: Refer to "Trigger" (p. 152) and "9.8 Data exporting methods" (p. 163) for trigger commands.
3.4 Setting Measurement Start Conditions
(Trigger Source)
• When internal triggering is selected, the EXT. I/O TRIG signal and the
∗
TRG
command are ignored
(except for memory storage and statistical calculations).
• To measure samples such as inductors that require time to settle, adjust delay time (DELAY2). Start with
a long delay, and gradually shorten it while watching for the measurement value to settle.
See: "4.2 Setting Pre-Measurement Delay" (p. 44)
• When external triggering [EXT] is enabled, the Auto-Memory function is forcibly disabled (OFF).
Trigger signals are automatically generated internally for contin-
uous measurement.
Measure with internal [INT] triggering
To measure automatically
Measurements are triggered by an external signal. Manual mea-
surement triggering is also available.
•
Apply a trigger signal at the EXT. I/O connector (p. 95)
•
Send the
∗
TRG
command by communications interface
(p. 138)
•
Press F4 [MANU] (only appears when EXT is selected)
Measure with external [EXT] triggering
To measure at specific times
To retain measurement values
1
Open the Basic Settings screen.
2
Select internal [INT] or external [EXT] trigger.
3
Return to the Measurement screen.
The Basic Settings screen appears.
1
Selection
2
Internal trigger
External trigger
(default)
Press F3 [EXT] to display the F4 [MANU] indicator.
Press to trigger a measurement manually.
Press the up/down
cursor keys to change
the setting.