Fluke 893A - Page 9

Section Title
Page
I INTRODUCTION AND SPECIFICATIONS 1-1
1-1. Introduction 1-1
1-5.
Electrical Specifications 1-1
1-6.
Differential Voltmeter 1-1
1-
7. Conventional
Voltmeter (TVM)
1-2
1-8.
General Specifications 1-2
1-9,
Environmental Specifications
1-2
1-
10. Mechanical Specifications
1-3
n OPERATING INSTRUCTIONS 2-1
2-
1.
introduction
2-1
2-4.
Operating Features
2-1
2-6.
C^eration from
115/230
volt
AC
Power Lines 2-1
2-9.
Preliminary Operating Procedures 2-1
2-11.
C^erational Test
2-1
2-15,
Operating Notes 2-4
2-
16. Ground Loop Currents 2-4
2-18. Common
Mode Voltages
2-4
2-20.
Use of Shorting Link
2-4
2-22.
DC Differential Off-Null iiput Resistance .
. .
2-4
2-24. TVM Mode Operation 2-5
2-26. Differential
Mode Operation
2-5
2-28. Optional Recorder
Output Operation
2-6
2-
30.
Applications
2-31.
Introduction
2-6
2-33.
Measurement of Voltage Excursions About
a Nominal Value
2-6
2-35.
Measurement of Extremely High Resistances
.
2-6
2-37.
Operation as
a
Null Detector
2-7
2-
39. Measurement of DBM
2-7
m
THEORY
OF
OPERATION 3-1
3-
1. fiitroduction
3-1
3-3.
Block Diagram Analysis 3-1
3-
4. fiitroduction 3-1
3-6.
Conventional
TVM
Mode 3-1
3-9.
Differential Null Mode 3-1
3-12.
Optional Recorder Output 3-2
3-14. Circuit Analysis 3-2
3-15.
Introduction 3-2
3-17. Power Supply/Battery Charger 3-2
3-20. The
Reference Supply
3-3
3-28.
Kelvin- Varley Divider
3-4
3-33.
AC Converter 3-5
3-38.
NullDetector 3-6
3-43.
DC Input Divider 3-7
3-46.
Optional
Recorder
Output 3-7
(Continued
pg.
ii)
89.“^
A