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In this section:
Welcome .................................................................................. 1-1
Extended warranty.................................................................... 1-1
Contact information .................................................................. 1-1
CD-ROM contents .................................................................... 1-2
Button features ......................................................................... 1-2
Standard accessories ............................................................... 1-2
Optional accessories ................................................................ 1-3
Available services ..................................................................... 1-3
General ratings ......................................................................... 1-3
Welcome
Thank you for using a Keithley Instruments product. The Model 2231A-30-3 Trip-Channel
Programmable DC Power Supply is a flexible DC source designed to power a wide range of
applications. It offers three independent and isolated power channels, allowing you to power circuits
with different references or polarities. Each channel can be enabled or disabled as your application
requires. Basic current accuracy is 0.2% for all channels and linear regulation delivers low noise –
less than 5 mV
pp
. Flexible display modes make it easy to use the two 30 V outputs in combination,
and the DB9 interface connector makes it easy to build PC-based systems. This compact power
supply covers a wide range of applications without covering a lot of bench space.
Extended warranty
Additional years of warranty coverage are available on many products. These valuable contracts
protect you from unbudgeted service expenses and provide additional years of protection at a fraction
of the price of a repair. Extended warranties are available on new and existing products. Contact your
local Keithley Instruments office, sales partner, or distributor for details.
Contact information
If you have any questions after you review the information in this documentation, please contact your
local Keithley Instruments office, sales partner, or distributor, or call Keithley Instruments corporate
headquarters (toll-free inside the U.S. and Canada only) at 1-888-KEITHLEY (1-888-534-8453), or
from outside the U.S. at +1-440-248-0400. For worldwide contact numbers, visit the
http://www.keithley.com
).
Section 1
Introduction