Output Slew Time; Manual Delay - Keithley 2500 User Manual

3-6 Basic Operation

Output slew time

Figure 3-2
changing the source value before accurate measurements can be taken includes both the
slew time and the measure circuit settling time.
NOTE
Figure 3-2
Output slew time
Volts

Manual delay

Manual delay for each channel can be set from 0000.00000 to 9999.99800 seconds. Man-
ually setting the delay disables auto delay.
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demonstrates the effect of output slew time on overall settling. Total time after
When not performing a sweep, the output slew time is not part of the auto source
delay. Therefore, for best accuracy when turning the output on or changing the
voltage source value, allow a delay of 3.07ms/V of output change before trigger-
ing a reading. This delay can be programmed by setting the trigger delay
[Section 10, "Trigger model (front panel
slewing, the compliance status bit for the channel will be set
"Status Structure"). You can poll the compliance bit to determine when the pro-
grammed source value is reached and an accurate reading can be taken.
3.07ms/V
Output
Slew
Source Output
Value Settled
Changed
Models 2500 and 2502 User's Manual
operation)"]. Also, while the output is
Time
Measurement
Circuit
Settling
Accurate readings
can be taken
(Section 14,