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Schlumberger Solartron 7060 User Manual

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7060
System
Voltmeters
MAINTENANCE
MANUAL
Issue
4:
April
1984
Part
No.
70600011
Schiumberger
Technologies,
instruments
Division,
Victoria
Road,
Farnborough,
Hampshire,
England
GU14
7PW
Telephone:
Farnborough
(0252)
544433
Telex:
858245
Solfar
G
Schtumberger
pursue
a
policy
of
continuous
development
and
product
improvement.
The
specification
in
this
document
may
therefore
be
changed
without
notice.
19°88
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Schlumberger Solartron 7060 Specifications

General IconGeneral
BrandSchlumberger
ModelSolartron 7060
CategoryMeasuring Instruments
LanguageEnglish

Summary

7060 System Voltmeters Maintenance Manual

Introduction

Overview of the manual's content and purpose, detailing technical information and operating instructions.

Safety Precautions

Essential safety warnings and guidelines for operating and maintaining the instrument to ensure user safety.

Chapter 1 General Information

Provides fundamental details about the voltmeter's operation, servicing, and component identification.

Chapter 2 Circuit Diagrams & Descriptions

Display and Keyboard Circuit

Details the circuit diagram for the display and keyboard controls, including anode drives.

Earthy Logic Circuits

Explains the earthy logic circuits on PCB 3, including the microprocessor set and clock divider.

Power Supplies Circuit

Describes the circuit responsible for producing floating and earthy power for the instrument's logic.

DC Voltage Attenuator, Clamps and Input Bootstrap

Details the circuit for DC voltage attenuation, input clamping, and bootstrap.

Input Switching and Main Amplifier

Explains the input switching and main amplifier stages, including drift correction.

DC Ranging and Bootstrap Circuit

Describes the bootstrap amplifier and scaling resistor network for the main amplifier.

A-to-D Converter Circuit

Details the circuit comprising integrator, comparators, and bi-stables for voltage conversion.

Reference Voltage Generation

Explains the circuit that generates positive and negative reference supplies for the A-to-D converter.

DC Floating Logic Interface

Details the interface between floating measurement circuits and earthy logic circuits.

Current Measurement Circuit

Describes the circuit for measuring alternating or direct current.

AC Mean Measurement

Explains the circuit that converts AC input to a DC voltage for measurement.

Ratio and AC Switching

Details the circuit for ratio measurement and AC signal switching.

Ohms Measurement Circuit

Describes the circuit for measuring resistance by passing current and measuring voltage.

AC (Fast) RMS Measurement

Explains the circuit that produces DC voltage proportional to true RMS value of AC input.

Board 16 Logic

Describes the logic circuit on board 16, similar to board 6 but with an additional output.

Lo Line Switching Circuit

Details the virtual earth technique for disconnecting the input Lo line during resistance measurement.

AC Attenuator and Buffer Circuit

Explains the circuit that attenuates and buffers the AC input signal before RMS conversion.

AC (High Performance) RMS Measurement

Describes the circuit for producing DC voltage proportional to true RMS value of AC input.

Ratio Measurement Circuit

Details the circuit for measuring ratio by comparing reference voltage and selected measurement.

Board 26 Logic

Explains the operation of the logic circuit on board 26, similar to board 6 logic.

Chapter 3 Board 3 Logic Testing

Introduction to Logic Testing

Introduces logic testing facilities including Signature Analysis and Transition Counting.

Test Procedures

Provides step-by-step instructions for diagnosing faults on the voltmeter's logic board.

Main Characterisation Table

Contains signatures and CT values for board 3 logic checks.

Chapter 4 Setting Up & Calibration

Introduction to Test Procedures

Overview of standard test procedures for rectification, component changes, or performance checks.

Setting-Up Procedures

Involves partial instrument strip-down for initial circuit parameter adjustments.

Power Supply Setup Check

Procedure to check power supply rails across different voltage and load conditions.

Calibration Procedures

Final checks performed under controlled conditions to ensure performance compatibility.

Direct Voltage Calibration

Calibration steps for direct voltage measurements across all models.

Resistance Calibration

Resistance calibration checks for models C to H.

Alternating Voltage Calibration

AC voltage calibration procedures for all models.

Chapter 5 Notation Diagrams

PCB 1 Component Layout

Diagram showing the placement of components on PCB 1.

PCB 5 Component Layout

Diagram illustrating the component layout on PCB 5.

PCB 16 Component Layout

Diagram showing the component placement on PCB 16.

Chapter 6 Parts Lists

Component Parts List Abbreviations

Provides a list of abbreviations used for component types in the parts lists.

PCB 1 Parts List

Lists the components and their Solartron part numbers for PCB 1.

PCB 5 Parts List

Lists the components and their Solartron part numbers for PCB 5.

PCB 16 Parts List

Lists the components and their Solartron part numbers for PCB 16.

Appendix 1 Fitting Option 70603M

70603M Minate Interface Kit

Details the items included in the Minate interface kit.

Fitting Instructions for Minate Interface

Step-by-step guide for installing the Minate interface unit.