Text preview for : 28039I(Model616).pdf part of Keithley 28039I(Model616) Keithley 616 28039I(Model616).pdf
Back to : 28039I(Model616).pdf | Home
INSTRUCTION MANUAL
Digital Electrometer
Model 616
COPYRIGHT 1975 KEITHLEY INSTRUMENTS, INC.
NINTH PRINTING, FEBRUARY, 1980, CLEVELAND, OHIO, U. S. A.
DOCUMENT NO. 28039
COWENTS
CONTENTS
Section Page
SpECIFIC*TIONS ---------------------------------------------------- i"
1. GENW&jJ, I~O~TpJ)q _---__------__-_-___----------------------- 1
INITIAL pREp)&qlON _____-_-_-_-_-_---------------------------- 4
2.
3. ()PEI(ATING lNS*RlJCTIONS __-_------------------------------------ 5
4. THEORY ,-Jr OpE~T~ON __-___------__-_-___----------------------- 21
5. *CCESSORIES __-___--_--__-__________________________----------- *g
6. MAINTENANCE -------------------_------------------------------ 33
7. REPLACEABLE PARTS ---_-_--------___-__------------------------- 37
SCHEMATICS ___-____________________________________---------------- 61
MODEL 616 1LL"STRATIONS
ILLUSTRATIONS
Figure NO. Title Page NO.
1 Front Panel 1
2 Front Panel Controls 2
3 Rear Panel Connectors 3
4 Triaxial Input 5
5 Typical Display an 1OmV Sensitivity 5
6 operation as B Voltmeter in NORMALMode 7
7 Operation a8 an Arcmeter in NORMALMode 8
8 Loading Effects in Ammeter Function 8
9 Operation as an Ohmmeter in NORMALMode 10
10 Operation as a Coulombmeter in FAST Mode 11
11 Null Method for Current Measurement 12
12 Volt-Ammeter Resistance Method 12
13 Unity Gain (Xl) Measuremene 12
14 "se of 1V Recorder Output 12
15 Front Panel Of Model 6162 13
16 Dual Rack Mounting "sing Model 1007 Hardware 13
17 Rear Panel of Model 616 and 6162 14
18 Diagram of b,rerconnecrion Cable between 616 and 6162 14
19 Identification of Pins on Digital Output Connector 16
20 Suggested Hook-up for Daea Lines 18
21 Block Diagram of 61616162 System 19
22 Timing Diagram for 6162 Outputs 19
23 Overall Block Diagram of Model 616 21
24 Simplified Diagram of Amplifier Section 22
25 Voltmeter Configuration - NORMALMode 23
26 Ammeter Configuration - FAST Mode 23
27 Coulombmeter Configuration - FAST Mode 24
28 Ohmneter Configuration - NORMALMode 24
29 Functional Black Diagram of *-m-o colwereer 25
30 Functional Black Diagram of Large Scale Integrated Circuit 26
31 DigiLal Display 26
32 Chassis Assembly - Exploded View 39
33 BOtfOm cover Assembly 39
34 Component Layout, PC-321 53
35 Gxnpanene Layout, PC-335 54
36 Component Layout, PC-322 55
37 Component Layout, PC-323 57
38 Component Layout, PC-324 59
39 Component Layout, PC-325 60
1175
SPECIFICATIONS MODEL 616
SPECIFICATIONS
iS AN AUTORANGINGVOLTMETER
RANGE: $10 microvolts
Cl00 volts
overranging
full
per digit (1OmV full
range in five decade ranges.
to 1999 0" all ranges.
range) eo
100%
AS A COULOMBMETER
RANGE: ?10-15 coulomb ,,er dinit
range) to ?10-5 coulo;b
ranges. 100% overranging
fuli
(LO-12 coulomb full
range in a decade
to 1999 on all ranges.
1
KCUPACY (ZO'=C to 30