2600AS-901-01 Rev. B / September 2008
Return to
6-7
Series 2600A System SourceMeter® Instruments Reference Manual
Section 6: Range, Digits, Speed, Rel, and Filters
provides the best common-mode and normal-mode noise rejection, but has the slowest reading
rate. In-between settings are a compromise between speed and noise. The default power-on
speed setting is
NORMAL
(1 PLC).
Setting speed
Speed is set from the SPEED configuration menu and is structured as follows.
SPEED configuration menu
Press
SPEED
(or use the
CONFIG
menu) to display the menu:
•
FAST:
Sets speed to 0.01 PLC.
•
MED:
Sets speed to 0.10 PLC.
•
NORMAL:
Sets speed to 1.00 PLC.
•
HI-ACCURACY:
Sets speed to 10.00 PLC.
•
OTHER:
Used to set speed to any PLC value from 0.001 to 25.
NOTE The
SPEED
setting affects all measurement functions. After setting
speed, display resolution can be changed using the
DIGITS
key. For
the Model 2602A/2612A/2636A single-channel display mode,
pressing the
SPEED
key for the channel not being displayed will
result in a display message to change to the other channel before
setting speed.
Remote speed programming
Speed command
summarizes commands to control speed. See
for more information.
Speed programming example
Use the NPLC command to set the speed. For example, send the following command to set the
speed to 10 PLC:
--Set NPLC to 10.
smua.measure.nplc = 10
Table 6-4
Speed command
Command
1
Description
smuX.measure.nplc = nplc
Set speed (nplc = 0.001 to 25)
2
1
smuX = smua for the Model 2601A/2611A/2635A; smuX = smua (Channel A)
or smub (Channel B) for the Model 2602A/2612A/2636A.
2
The speed setting is global and affects all measurement functions.
