Datron 1062 - Page 3

I
CONTENTS
GENERAL
DESCRIPTION
\
INSTALLATION
1
Refer
to
MEASUREMENT
PROCEDURES
(
SPECIFICATION
AND SPECIFICATION
VERIFICATION
1
User's Handbook
SYSTEMS
APPLICATIONS
)
Section
Title
Page
1
CALIBRATION
1.1
INTRODUCTION
1.1.1
General
1.1.2
Essentials
for Good
Calibration
1
1.1.3
The 'AUTOCAL'
Process
1
1.2
DC VOLTAGE
CALIBRATION
2
1.3
OHMS
CALIBRATION
4
1.4
AC
VOLTAGE
CALIBRATION
-
OPTION
10 ONLY
6
-
OPTION
12
ONLY
7A
1.5
DC
CURRENT
CALIBRATION
8
1.6
AC CURRENT
CALIBRATION
9
1.7
'AUTOCAL'
USING 'KEYBOARD'
10
1.8
'AUTOCAL'
OVER
THE BUS
11
2
MECHANICAL
DESCRIPTION
13
2.1
GENERAL
13
2.2
FRONT PANEL
13
2.3
REAR
PANEL
13
2.4
EXTERNAL
CONSTRUCTION
13
2.5
INTERNAL
CONSTRUCTION
13
3 TECHNICAL
DESCRIPTION
15
3.1
INTRODUCTION
15
3.2
ANALOG ASSEMBLY
15
3.2.1
Analog
Interface
15
3.2.1.
1 Introduction
15
3.2. 1.2
Power-On
15
3.2.1.
3 General
Interface
Update
Sequence
17
3.2.1.
4 Test
17
3.2.2
DC
Isolator
Section
'
17
3.2.2.1
Preamplifier
Scaling
17
3.2.2.2
Preamplifier
20
3.2.2.3
DC
Bootstrap
20
3.2.2.4
Filtering
20
3.2.2.5
Input
Current
Compensation
21
3.2.2.B Test
21
3.2.3
Analog
to Digital
Conversion
(Analog
Section)
21
3.2.3.1
General
Principles
21
3.2.3.2
A-D
Input
Control
23
3.2.3.
3
Reference
Voltages
and
Control
Logic Power Supply
23
3.2.3.4
High
Speed Buffer
24
3.2.3.5
Integrator
24