6247G/6247C DC Voltage Current Source/Monitor Operation Manual
5.2.5 Measurement Function
5-34
5.2.5.4
Measurement in Sample Hold Mode
The sample hold mode can be set only when the source mode is pulse mode or pulse sweep mode. Set this
mode using the integration time parameter.
The measurement conditions in the sample hold mode are as follows:
•
Source mode
: Pulse mode or pulse sweep mode only
•
Integration time
: 100
s
•
Measurement timing
: Holds immediately before pulse falling edge (pulse complete).
•
Limit on executable period time : 600 ms max.
Sample hold measurement operation for pulse source is shown below.
Figure 5-12 Measurement in Sample Hold Mode
Beware of the following points when setting the sample hold mode.
•
When the source mode is changed to DC mode or DC sweep mode, the sample hold mode is
released and the integration time parameter becomes 100
s. To use the sample hold mode again, set
the integration time parameter to sample hold mode.
•
In the sample hold mode, the period time setting range is from 500
s to 600 ms. An error message
appears at the following timing and the measurement does not start if it is set out of the range. Verify
the setting range.
•
When the output status is switched from Standby to Operate or Suspend.
•
When the period time is changed in Operate or Suspend status.
NOTE:
There is not any limit detection during measurement in the sample hold mode.
* The measurement delay time (Td) is ignored in the sample hold mode.
Tds: Source delay time
Tp: Period time
Tw: Pulse width
Tit: Integration time (100 µs)
Tad: AD conversion time
Tk: Internal processing time
Tm: 20 µs + Tit + Tad + Tk
Hold
Sample
Sample
Output
Sample/hold circuit
Measurement
Internal processing