10.2 Timing Chart
188
The measurement time (from trigger input to EOM ON) can be calculated as follows:
• When OVC is OFF
td+(t2+t3)×na+t4
• When OVC is ON
td+(t2+t3+t2+t3)×na+t4
td : Trigger detection time (ON edge: max. 0.1 ms; OFF edge: max. 0.3 ms)
na : Number of average iterations (however, during free-run* operation with the INT trigger
source, 1 iteration)
Note that when using the SLOW2 measurement speed with low-power resistance measure-
ment on, the instrument will performing averaging with two iterations internally even if the
averaging function is set to off. If the averaging function is on, the instrument will perform
averaging using the set number of iterations.
*: When not using the INITiate:CONTinuous OFF or :READ? command
(For more information about commands, see the Communications Command Instruction
Manual on the included application disc.)
Measurement times may vary depending on the self-calibration timing.
See: "Self-calibration timing" (p. 191)
* When using the MUX mesurement terminals, the integration time is 1.0 ms only in the 10 m
range.
Timing Chart Interval Descriptions
Interval Description Duration Remarks
t0 Trigger Pulse
Asserted (ON)
0.1 ms
or more
ON/ OFF-edge selectable
t1 Trigger Pulse
De-asserted (OFF)
1 ms or more
t2 Delay 0 to 100 ms Setting-dependent
t3 Acquisition
processing time
Integration time + Internal wait time
(see following table)
t4 Calculation time 0.3 ms Calculation time is longer when mem-
ory storage and statistical calcula-
tions are enabled.
t5 EOM pulse width 1 to 100 ms Setting-dependent
t6 EOM pulse width
with internal trigger
5 ms Cannot be changed.
Integration time reference values (unit: ms)
LP Range
FAST MEDIUM
SLOW1 SLOW2
50 Hz 60 Hz 50 Hz 60 Hz
OFF
1 M or less 0.3* 20.0 16.7 100 200
10 M or more 20.0 16.7 20.0 16.7 100 200
ON All ranges 20.0 16.7 40.0 33.3 200 300
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