The Keithley 228 Voltage / Current Source is both a constant voltage and constant current source with front panel and IEEE operation. The Keithley 228 can be used as a constant voltage source or a constant current source. It has four quadrant operation. This means that the voltage or current sources can operate as a source or a sink in either positive or negative polarities. Full power capability of 100W may be obtained in any quadrant.
Parameter entry is done in one of two ways. Either using the data keypad to enter the desired value into the display or using the display modify function. The display modify function allows the user to modify either display by modify function. The display modify function allows the user to modify either display by selecting a digit of the displa and incrementing or decrementing that digit with the appropriate keys. With the carry, borrow and autorepeat capability, front panel operation is flexible and easy to program. The user selects from the range with the decimal point.
The Keithley 228 has a 100 point data memory that allows the user to store up to 100 unique values of current, voltage and dwell time for future use. Once a particular level is stored in the data memory, the user need not reprogram the level.
The output terminals are located on a quick disconnect board that inserts into the the rear panel of the mainframe. The output is disconnected from the quick disconnect board when it is removed from the mainframe.
For the first time in a long time, can I just say thanks for the excellent unit you sold me even better than the one in the picture. Fantastic to deal with a honest human for a change.
-- Walter R.
Customers who viewed this also viewed
Keysight / Agilent 6628A Dual Power Supply, 50W, 16V, 200mA or 50V, 1A or 16V, 2A
Keysight / Agilent E4367A Configured E4360A SAS Mainframe with 2 E4361A Modules
Keysight / Agilent N6761A Precision DC Power Module, 50V, 1.5A, 50W
Tektronix PWS2323 DC Power Supply, 32V, 3A
Why Choose Axiom?
Your testing is complicated enough, we want to make sourcing test equipment the easy part.
Dedicated Customer Service
We go beyond the role of order taker
& strive to partner with you to provide
a custom solution.
Competitive Prices
Equipment is agressively priced. We
work with you to find a solution to fit
your budget.
Fast Turnaround
No long drawn-out sales process, We
help you find the equipment you need,
and get through order processing
quickly so your equipment ships out
fast!
Warranty & Support
Comprehensive Parts and Labor
warranty on all equipment sold.
Includes a user manual, is fully accessorized, and tested to manufacturer
specifications prior to shipment.
I have used Axiom Test Equipment for a number of years now and have found them to be reliable and well priced. Axiom stands behind their equipment and I always have confidence that I will get what I paid for.