Equipment information:

Keithley 228A Current source
Manufacturer:
Keithley
Model: 228A
Date: 1984
Category: Measurement instruments
Group: Current source
Description: Voltage / Current Source
Information:
                                    The Model 228 Voltage/Current Source is both a constant
voltage and constant current source with front panel and
IEEE operation. The Model 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
selecting a digit of the display 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
the range with the decimal point.

The Model 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 that
level.

The output terminals are located on a quick disconnect board
that inserts into the rear panel of the mainframe. The
output is disconnected from the quick disconnect board when
it is removed from the mainframe.

These manuals are available for the above equipment:

Keithley -- 228A -- Service and User Manual
File name: Keithley-5555-Manual-Page-1-Picture
Manual Type: Service and User Manual
Pages: 130
Size: 12.36 Mbytes (12963869 Bytes)
Language: english
Revision: D
Manual-ID/Number: 228A-901-01
Date: April 1991
Quality: Scanned document, all readable.
Upload date:
MD5: dc4d99251839c0608de17d1dec56d0e8
ed2kID: 07582f163c060a57b83f65bd752540c0
Downloads: 146 since 02 March 2014
Information:
Keithley-5555-Manual-Page-1-Picture
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Keithley -- 228A -- Datasheet
File name: Keithley-5590-Manual-Page-1-Picture
Manual Type: Datasheet
Pages: 2
Size: 798.05 Kbytes (817201 Bytes)
Language: english
Revision:
Manual-ID/Number:
Date:
Quality: Scanned document, all readable.
Upload date:
MD5: 81f553d1105ed533ec4fe949eff8b0cf
ed2kID: cfa36ab5caadc6f4568e4afb035c1c52
Downloads: 79 since 07 March 2014
Information:
Keithley-5590-Manual-Page-1-Picture
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Keithley -- 228A -- User Manual
File name: Keithley-5612-Manual-Page-1-Picture
Manual Type: User Manual
Pages: 56
Size: 632.38 Kbytes (647554 Bytes)
Language: english
Revision: A
Manual-ID/Number: 228-903-01
Date: 1984
Quality: Scanned document, reading partly badly, partly not readable.
Upload date:
MD5: 69072755034a5def5bdd8f023a48e6ac
ed2kID: 6b1fa0825dca668dfdf7350d0a08fb73
Downloads: 65 since 07 March 2014
Information:
Quick Reference Guide
Keithley-5612-Manual-Page-1-Picture
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Keithley -- 228A -- User Manual
File name: Keithley-5613-Manual-Page-1-Picture
Manual Type: User Manual
Pages: 38
Size: 1.04 Mbytes (1085336 Bytes)
Language: english
Revision:
Manual-ID/Number: 228A-904-01
Date: 1985
Quality: Scanned document, all readable.
Upload date:
MD5: 35c6e5299d50814b00f60a266c3dd2e1
ed2kID: 89999dd13a33c614debbf4255f563ad4
Downloads: 68 since 07 March 2014
Information:
Application and Reference Guide

This booklet has been written to help the user understand
the operation and specifications of the Model 228
Voltage/Current Source. The chapters in this booklet have
been written to aid the user in some applications. Terms
relating to the V/I source such as: stability, line
regulation, load regulation and sensing are defined in the
glossary. For a complete explanation of the instrument
including front panel controls and IEEE-488 bus operation
refer to the Model 228 Instruction Manual (Document Number
228-901-01).
Keithley-5613-Manual-Page-1-Picture
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