69
5.11 Trigger Function
5.11.2 Trigger Delay
Function
Description
Set the delay between trigger signal input and the start of
measurement.
By using this function, even when a trigger is input immediately upon
connecting to a test object, measurement can be delayed to allow
conditions to stabilize.
Two types of trigger delay are available:
• Auto Delay
The delay is set automatically for each range. (see Table below)
• Manual Delay
Set the delay time independently.
The trigger delay can be set with 1 ms resolution from 0.000 to
9.999 s.
Auto Delay Times
• When the Internal Trigger source is enabled, the EXT I/O signal
and the "∗TRG" command are ignored.
• When using external triggering, current flows while measuring with
the Low-Power Resistance function in all ranges, and with the
Resistance Measurement function, in the 20 mΩ to 20 Ω ranges.
❖ 6.3 Timing Chart (Page 83)
• The response time depends on the test object, so some Delay
should always be set. Initially set a long Delay, then while watching
the measured value, shorten it gradually.
❖ 5.11.2 Trigger Delay (Page 69)
• Normally, the "continuous measurement" condition occurs when
operating from the front panel. When internal triggering is selected,
the "Free-Run" condition causes continuous triggering. When
external triggering is selected, each trigger causes one
measurement.
Continuous measurement can be disabled by setting via RS-232C
or GP-IB. When continuous measurement is disabled, triggering is
received only according to the timing specified by the host (PC or
sequencer).
❖ About trigger commands: (7) Triggering (Page 140)
❖ 8.7 Basic Data Importing Methods (Page 147)
Range [
Ω]
20 m 200 m 2 20 200 2 k 20 k 100 k 1 M 10 M 100 M
Resistance
Measurement
Delay [ms]
OVC OFF303033333101005001000
OVC ON 100 100 100 100 100 100 100
−−−−
Low-Power
Resistance
Measurement
Delay [ms]
OVC OFF
−−
33315
−−−−−
OVC ON
−−
100 100 100 100
−−−−−
OVC: Offset Voltage Compensation