![background image](http://html.mh-extra.com/html/keithley/2601a/2601a_user-manual_661721080.webp)
A-2
Return to
2600AS-900-01 Rev. B / September 2008
Appendix A: Frequently Asked Questions
Series 2600A System SourceMeter
How do I optimize performance?
There are three primary factors that affect measurement accuracy and speed:
•
Warm-up: For rated measurement accuracy, allow the Series 2600A to warm up for at least
two hours before use.
•
Speed setting: The Speed setting affects both speed and accuracy.
•
Auto zero: Auto zero can be disabled to increase speed at the expense of accuracy.
Setting speed
Press the
SPEED
key, then choose the setting based on your requirements:
•
Choose the
FAST
setting for the fastest measurements, but measurement accuracy will be
reduced.
•
For best accuracy, use the
HI-ACCURACY
setting, but speed will be reduced.
•
To compromise between accuracy and speed, use the
MED
or
NORMAL
setting.
Disabling auto zero to increase speed
In certain measuring situations, disabling auto zero can increase measurement speed, but
accuracy will drift with time and temperature. To disable auto zero, select
CONFIG > MEAS >
AUTO-ZERO
, then set to
OFF
. To minimize drift with auto zero disabled, use the
ONCE
selection
just before measuring.
How do I upgrade the firmware?
You can use a USB flash drive to upgrade and install the firmware.
CAUTION
Disconnect the input and output terminals before you upgrade the flash
drive.
Complete the following steps to upgrade the firmware.
1.
From your PC, go to
www.keithley.com
and download the latest version of the appropriate
firmware.
2.
Insert the USB flash drive into the USB port on your PC.
3.
Transfer the firmware file to the USB flash drive.
4.
Insert the USB flash drive into the USB port on the front panel of the Series 2600A
instrument.
5.
From the front panel, press
MENU
>
UPGRADE
.
6.
Select the appropriate version of firmware on the USB flash drive.
7.
Press the
ENTER
key to finish the firmware upgrade on the Series 2600A.
CAUTION
Do not turn the unit off while an upgrade is in progress.