Equipment information
Datron Instruments 4700 Calibrator
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Model:
4700
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Description:
AUTOCAL MULTIFUNCTION CALIBRATOR
Information
The Datron 4700 Autocai Multifunction. Calibrator is a
high-precision Calibrator which features exceptionally
high stability and full systems capability. It is
characterized by a wide-range coverage of DC Voltage, AC
Voltage. DC Current, AC Current and Resistance functions in
a single unit,
VThe basic Instrument includes both DC Voltage and
AQ.Voltage calibration sources up to the 100У range
(200V maximum output).
"
Option 10 (factory-fitted) extends both DC Voltage and AC
Voltage functions up to the 1000V range (1100V
maximum output).
Option 20 (field or factory-fitted) adds calibration sources
of DC Current, AC Current and Resistance,
The 4700 incorporates a reference module containing
precision temperature-compensation elements,
maintaining a high accuracy specification over the ambient
temperature range of 23 °C ± 10°C A. high level of
stability is achieved by use of super-selected reference
components and ultra-stable gain-defining resistors. The
‘Autocar feature ensures that its 24-hour specifications are
usable; not merely figures of merit.
The 4700 uses a microprocessor for control management,
simplifying its use in complex manual operations,
such as calibration of high-quality digital multimeters. The
IEEE 488 Interface provides a comprehensive
remote programming capability, allowing programmed
calibration of the 4700 itself
Manual Type:
User Manual
Pages:
132
Size:
7.62 Mbytes (7988698 Bytes)
Language:
english
Revision:
Manual-ID:
Date:
Quality:
Scanned document, reading partly badly, partly not readable.
Upload date:
2016 12 29
MD5:
9bb596889e3e771b7bb2b5500a311771
Downloads:
1184
Information
Introduction
Standard and Optional Facilities
SAFETY
Optional Facilities
Accessories
Additional Documentation
Principles of Operation
S E C TIO N 2
INSTALLATION
Unpacking and Inspection
Preparation for Operation
Bench Mounting
Rack Mounting
Connectors and Pin Designations
S E C T IO N S
OPERATING CONTROLS
Front Panel
Front Panel Keys
Power Switch
OUTPU T Switching
FU N C TIO N Keys
O U TPU T RANGE Keys
OUTPUT Display and 4 !if Keys
Frequency
MODE Selection Keys
Ϊ+ , I—, Hi, Lo, Guard and Ground Terminals
Rear Panel
S E CTIO N 4
U S IN G THE DATRON 4 7 0 0
Preliminaries
Limiting Characteristics
SAFETY
Interconnections
Typical Lead Connections
General Sequence of Operations
Display Messages
Operating Routines
DC Voltage Outputs
AC Voltage Outputs
Option 20 Currents and Resistance
DC Current
AC Current
Resistance
Additional Facilities
Frequency Store
‘Spec’ Mode
‘Error5 and Offset’ Modes
Combining Offset and Error Modes
Test Key
Test Sequence ■
Warnings and Messages
S E C T IO N S
SYSTEMS A PP LIC A TIO N V IA THE ίΕΗΕ 488Introduction
Interface Capability
Bus Addresses
interconnections
Typical System
Using the 4700 in a System
Programming Instructions
Programming of Operational Functions
Programming of Bus Transmissions
Activation of Commands
Multiple Commands
Operational Sequence Guidelines
INTERFACE-
'
SECTION 6
SPECIFICATIONS
General
DC Voltale
AC Voltage
Voltage/Frequency Constraints
Capacitive Loading Constraints
DC Current
AC Current
Resistance
SECTION
7 SPECIFICATION V E R IF IC A T IO N
Introduction
DC Specification Verification
Equipment Requirements
Notes on the Use of the Null Detector
Specification Verification Report Sheet
Verification Procedures
4700 DC Voltage Performance
4700 DC Current Performance
4700 Resistance Performance
Model 4700 Verification Report Sheet RS.1
AC Specification Verification
Choice of Verification Method
Parameters to be Verified
Summary of Equipment Requirements
Summary of Verification Procedures
Specification Verification Procedures
AC Voltage Verification: Procedure
Millivolts (LF) Verification Procedure
Millivolts (HF) Verification Procedure
AC Current Verification Procedure
Model 4700 Verification Report Sheet RS2
APPEN DICES TO SECTION 7:
1. Verification Procedures For Users with Fixed DC Voltage
Standards
2. Alternative Millivolt Verification Procedure
3. Alternative AC Current Verification Procedure using
Calibrated Standard AC Shunts
4. Total Tolerance Limit Calculations
5. Uncertainty and Traceability
6. General Procedural Information
7. Harmonic Distortion Measurement
SECTION 8
ROUTINE AUTOCALIBRATION
The 4700 Autocai Feature
DC Calibration
Autocai Availability
Zero Calibration
Equipment Required for DC Calibration
Interconnections
D C Calibration Sequence
4700 DC Voltage Calibration
4700 DC Current Calibration
47ÖO Resistance Calibration
AC Calibration
AC Calibration Sequence
4700 AC Voltage Calibration (1V-1000V)
4700 AC Millivolts (LF) Calibration (imV-lOOmV)
4700 AC Millivolts (HF) Calibration (lmV-100mV)
4700 AC Current Calibration (Im A -lA )
A P P E N D IX TO SECTION 8:
4700 AC Current Calibration (ΙΟΟμΑ - 1 A)
OATRON SALES AND SERVICE REPRESENTATIVES W O R LD WID E
This handbook has been designed for you to get the best use
from ypur 4700, The sections are put together in a
sequence (lowing logically from one subject to another, so
that understanding increases as the text is read
naturally from front to rear. Here is an alternative
(explanatory !) version of the Section Titles:
Sect 1. Introduction and a brief account of the internal design.
Sect 2. Physical connections and mounting — getting it
installed.
Sect 3. A brief scan of the available controls — where they
are and what they do.
Sect 4.
The correct procedures for making the 4700 perform for you.
Sect 5. How your 4700 can operate within an IEEE 488 system
— the device dependent codes you will need
to use.
Sect 6.
Specifications — what accuracy you can expect to get from
your instrument.
Sect 7. Verification that your 4700 matches the high
specification it had when it left the factory.
Sect 8. How to restore your 4700 to its original
specification after it has suffered the ravages of time and
temperature.