Keithley 242 Compteur de fréquence
Fabricant:
Modèle:
242
Date:
1965
Catégorie:
Groupe:
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.

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Service et Manuel de l'utilisateur
Type manuel:
Service et Manuel de l'utilisateur
Pages:
28
Taille:
1.38 Mbytes (1447944 Bytes)
Langue:
english
Révision:
Manuel-ID:
Date:
Qualité:
Document scanné, la lecture en partie mal, en partie illisible.
Date de transfert:
2012 05 27
MD5:
44e49f140bc75a86188128d789d571f2
Téléchargements:
759

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 ... , , 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 5-3. 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.

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