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Summary of Contents for 600A

Page 1: ...Model 600A Electrometer InstructionManual Contains Operating and Servicing Information...

Page 2: ...ast 90 days LIMITATION OF WARRANTY This warranty does not apply to defects resulting from product modification without Keithley s express written consent or misuse of any product or part This warranty...

Page 3: ...resent A good safety practice is to expect that hazardous voltage is present in any known circuit before measuring Users of this product must be protected from electric shock at all times The responsi...

Page 4: ...y before performing the indicated procedure The CAUTION heading in a manual explains hazards that could damage the instrument Such damage may invalidate the warranty Instrumentation and accessories sh...

Page 5: ...yCheck 3 4 G Using Extenal Indicators 3 5 R Misce Ll aneous Applications 3 5 I Zero Center Operation 3 6 Section IV Circuit Discussion 4 l A Voltmeter 4 l B Ammeter 4 2 C Ohmmeter 4 3 Section V Access...

Page 6: ......

Page 7: ...rrent measuring resistor This largely eliminates the input drop and increases measuring speed particu larly on the more sensitive ranges The 600A measures 10K to 1012 ohms full scale wit P a two termi...

Page 8: ...INTROlWCl ION MODEL 6OOAELECTROMETER 1 2...

Page 9: ...ampere fi OHMMETER RANGE LO4 ohms full scale to 1013 ohms in nineteen linear lx and 3x ranges ACCURACY 23 of full scale on lo4 to 1010 ohm ranges using largest available MULTIPLIER Switch setting 5 of...

Page 10: ...lts four El46 8 4 volts two RM42R 1 34 volts 500 hours minimum battery life DIMBNSIONS WEIGHT 10 l 4 inches high x 6 l 2 inches wide x 6 l 2 inches deep net weight l 2 pounds ACCESSORIESSUPPLIED Matin...

Page 11: ...the full scale meter reading ZEROcontrol located at the left under the meter is used to Rear Panel Controls set the meter to sero METER BATTERY switch at the right under instrument on determines mete...

Page 12: ...may be used If the impedance is low elow about lOlo ohms and leads can be kept short the binding post adapter furnished with the instrument may be used The Keithley Model 6101A Shielded Test Lead will...

Page 13: ...the MULTIPLIERswitch Before reading OHMS turn RANGE switch to the ap proximate range of the unknown resistance By manipulating the NULTI PLIER and the RANGE switch the sample can be tested at a numbe...

Page 14: ...he potential applied is not large compared to the ammeter drop the resistance is equal to POTENTIALAPPLIED INPUTDROP VOLTS CURRENT READING le If it is possible to operate on FASTmicro microanmreter th...

Page 15: ...scale meter deflection on any range The frequency response is dc to 100 cycles on the 10 milli volt range rising to 1 kc on the 10 volt range The maximum amolitude which can be delivered bv the ampli...

Page 16: ...ected by the setting of the MULTIPLIERswitch However for the cur rent to be accurate the amplifier should be in balance It will be sufficient to balance the amplifier on the l volt range of the MJLTI...

Page 17: ...e nor accurate at high impedance Con sequently the Model 600A will accept 10 volts without the use of input dividers preserving the high input impedance and accuracy of the ampli fier Accessory probes...

Page 18: ...amperes to lo 13 amperes may be measured by this method since the range switch selects resistors ranging from one ohm to 1011 ohms in decade steps The voltage drop is selected by the MULTIPLW switch t...

Page 19: ...med into a differentiator with the resultant extreme sensitivity to very small voltage tran sients For this measurement the NORMAL should be used d Do not attempt to use the FASTconnection for current...

Page 20: ...asuring resist EXTERNAL VOLTAQE t FIQURE 600 6 ante the voltage across the unknown may not be arbit rarily selected and the time of measuring capacitor leakage tends to be long since constant current...

Page 21: ...onnection Someprecautions are recommendedwhen testing capacitors Be sure that capacitors have discharged before removing from test circuit With the ZEROCHECK switch depressed the input is shorted to g...

Page 22: ...correct to 1 and the probe input resistance is lOlo ohms The probe is supplied with a mating connector and 3 feet of cable MODEL 6103A Y 1ooO 1VOL IWE DIVIDEB PFiOBE The Model 6103A probe is intended...

Page 23: ...sides of the instrument and lifting the cover upward With the cover removed follow this procedure Short floating ground to output ground to remove the negative feed back This is most conveniently acco...

Page 24: ...trometer tube Battery failing Defective electrcmeter tube See section above Remedy Replace Vl and V2 with matched set Replace batterv Reulace Vl and V2 with matched set See section above The proper me...

Page 25: ...designation and a description of the part All structural parts and those parts coded for Keithley manufacture 80164 must be ordered from Keithley Instruments Inc In ordering a part not listed in the...

Page 26: ...CerD 72982 831XSRlOLK c22 LOOP 1000 CerD 72982 84125V203P C22 02M 1000 CerD 72982 84125V203P C22 02M MISCELLANEOUSPARTS Circuit Desig Description Mfg Keithley Code Part No JlOL 5102 Binding Post Black...

Page 27: ...g Code Mfg Part No Keithley Part No RlOl 18 l lO l 2 w R102 LO9 R 20 l 2 w R103 Not Used R104 Not Used RL05 LO Ml l 1 w RL06 a33 ul lO l 2 w R107 10 m l 1 w R108 312 kn L l 2 w R109 Not Used RllO 220...

Page 28: ...7 RSE LO R34 10 ww 91637 RSE 10 R34 1 ww 01686 7070 R92 20 DCb 79727 CFE 15 RL2 450K DCb 79727 CFE 15 R12 8 6K DCb 79727 CFE 15 R12 8 6K DCb DCb DCb DCb DCb DCb DCb DCb DCb DCb DCb 79727 79727 79727 7...

Page 29: ...Cleveland Ohio 71450 CTS Corp Elkhart Ind 72982 Erie Technological Products Inc Erie Pa 75042 International Resistance Co Philadelphia Pa 79727 Continental Wirt Electronics Corp Philadelphia Pa 80164...

Page 30: ...CN INC NOT TO SE USED OR REPRODUCED EXCEPT AS AUTHORIZED B THE COMPANY THE ABOVE VOLTAGE AND RESISTANCE READINGS WERE TAKEN WITH CONTROLS SET A5 FOLLOWS MULTIPLIER ON IO METER SWITCH ON METER FWV ZCIN...

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