Equipment information

Keithley 242 Power supply
Manufacturer:
Keithley
Model: 242
Date: 1965
Category: Measurement instruments
Group: Power supply
Description: REGULATED HIGH VOLTAGE SUPPLY
Information:

The Keithley Model 242 Regulated High Voltage Supply provides accurate, stable outputs between 300 and 3500 volts dc. Accuracy is -0.1% for all loads up to 25 milliamperes. Stability is 20.01% for six months after a 30-minute warm-up. Line regulation is within ?O.OOS% for a 10% change in line voltage, and load regulation is within +/- O.OOS% from zero to full load.

These manuals are available for the above equipment:

Manual Type: Service and User Manual Keithley-3532-Manual-Page-1-Picture
Pages: 28
Size: 1.38 Mbytes (1447944 Bytes)
Language: english
Revision:
Manual-ID/Number:
Date: October 1965
Quality: Scanned document, reading partly badly, partly not readable.
Upload date:
MD5: 44e49f140bc75a86188128d789d571f2
Downloads: 281 since 27 May 2012
Information:

GENERAL DESCRIPTION ... 1 l-1. General ... 1 1-2. Features ... 1 l-3. Applications ... 1 1-4. Specifications ... 2 1-5. Accessories ... 2 l-6. Equipment Received ... 2 OPERATION. ... 3 2-1. Front Panel Controls and Terminals ... 3 2-2. Operating Procedures ... 4 2-3. Overloads ... 4 2-4. Floating Operation ... 4 CIRCUIT DESCRIPTION ... 5 3-l. General ... 5 3-2. AC Control Circuits ... 5 3-3; Low and High Voltage Supplies 5 3-4. Regulator Circuit ... 6 SERVICING. ... 7 4-1. General ... 7 4-2. Servicing Schedule ... 7 Section Page 5. 6. 4-3. Parts Replacement . . . . . . 7 4-4. Troubleshooting . . . . . . . 7 4-5. Procedures to Guide Troubleshooting , . . . , , 8 4-6. Correcting for No Output , . 9 4-7. Correcting for Inaccurate Voltage Output . . . . . . . 9 4-a. Bias Adjustment , . . . . . .lO 4-9. Improperly Working Overload .lO CALIBRATION . . . . . . . . . . . .ll 5-1. General . . . . . . . . . . .ll 5-2. Calibration Schedule . . . .ll 5-3. Output Calibration . . . . .ll REPLACEABLE PARTS . . . . . . . . .17 6-l. Replaceable Parts List . . .17 6-2. How to Order Parts . . . . .17 model 242 Replaceable Parts List . . . . . . . . . . .~ .18 model 242 Schematic Diagram 14661D . . . . , . , . . . .25 '*Change Notice QkYellow Change Notice sheet is included only for instrument modifications affecting the Instruction Manual.

Keithley-3532-Manual-Page-1-Picture


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