6482-901-01 Rev. A / August 2012
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4-5
Model 6482 Dual-Channel Picoammeter / Voltage Source Reference Manual
Section 4: Range, Digits, Speed, and Filters
Setting speed
Speed is set from the SPEED ACCURACY MENU and is structured as follows. Use
to check and/or change the speed setting.
SPEED-ACCURACY MENU
Press the
SPEED
key (or press the
CONFIG
key and then the
SPEED
key) to display the menu
•
FAST
: Sets speed to 0.01 PLC and sets display resolution to 3½ digits.
•
MED
: Sets speed to 0.10 PLC and sets display resolution to 4½ digits.
•
NORMAL
: Sets speed to 1.00 PLC and sets display resolution to 5½ digits.
•
HI ACCURACY
: Sets speed to 10.00 PLC and sets display resolution to 6½ digits.
•
OTHER
: Use to set speed to any PLC value from 0.01 to 10. Display resolution is not
changed when speed is set with this option.
NOTE
The SPEED setting is global and affects both channels. After setting speed, display
resolution for the single-channel display mode can be changed using the DIGITS key.
Figure 4-1
Speed configuration menu tree
Remote speed programming
Speed commands
summarizes commands to control speed. Although commands for both channel 1 and
channel 2 are included, the NPLC setting is global and affects both channels. See
more information.
Speed programming example
Send the following command to set the speed for both channel 1 and channel 2 to 10 PLC:
:SENS1:CURR:NPLC 10
Table 4-4
Speed commands
Command
Description
:SENSe[1]:CURRent:NPLCycles <n>
:SENSe2:CURRent:NPLCycles <n>
Set speed (n = PLC, 0.01 to 10).
Set speed (n = PLC, 0.01 to 10).
Speed
Normal
(1.00PLC,
5½ digits)
Fast
(0.01PLC,
3½ digits)
Med
(0.10PLC,
4½ digits)
HI Accuracy
(10PLC,
6½ digits)
Other
(Set Speed
0.01 to 10 PLC)
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