Keithley 604A(Model604) free download

File name 604A(Model604).pdf

INSTRUCTION MANUAL MODEL 604 DIFFERENTIAL ELECTROMETER AMPLIFIER KEITHLEY INSTRUMENTS, INC. PRINTED JANUARY 1977, CLEVELAND, OHIO U.S.A. CONTENTS MODEL 604 CONTENTS Section Page SPECIFICATIONS ... iv 1. GENERALDISCRIPTION. ... 1 2. OPERATION... 3 3. CIRCUIT DESCRIPTION. ... 11 4. MAINTENANCE...1 3 5. ACCESSORIES. ... 25 6. REPLACEABLEPARTS. ... 27 SCHEMATICS...3 6 ii 0177 MODEL 604 ILLUSTRATIONS ILLUSTRATIONS Fig. No. Title Page 1 Model604FrontPanelControls ... 3 2 Model 604 Rear Panel Controls ... 3 3 Model 6041 Front Panel. ... 4 4 TypicalExperiment ... 5 5 Error Due to Ammeter Resistance ... 8 6 Internal View of Model 301 Amplifier. ... 9 7 Model 604 Block Diagram ... 11 Ripple Obtained for the 26 Volt Supply. ... 14 : Ripple Obtained for the 15 Volt Supply. ... 15 10 Ripple Obtained for the 21 Volt Supply. ... 15 11 Location of Voltage Supplies Test Points. ... 15 12 Null Obtained with the Signal Generator at 5H.z. ... 17 13 Null O