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Rigol DM3068 Service Manual

Rigol DM3068
70 pages
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RIGOL
Service Guide
DM3068 Digital Multimeter
Feb. 2014
RIGOL Technologies, Inc.

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Questions and Answers:

Rigol DM3068 Specifications

General IconGeneral
Display Digits6.5
Power Supply100-240 V AC, 50/60 Hz
Weight3.7 kg
DC Voltage Range200 mV to 1000 V
DC Voltage Accuracy±(0.0035% of reading + 0.0005% of range)
AC Voltage Range200 mV to 750 V
AC Voltage Accuracy0.06%
DC Current Range200 µA to 10 A
DC Current Accuracy0.05%
AC Current Range200 μA ~ 10 A
Resistance Range200 Ω ~ 100 MΩ
Resistance Accuracy0.01%
Capacitance Accuracy1%
Frequency Accuracy0.01%
Temperature Range-200°C
ConnectivityUSB, LAN, GPIB

Summary

Guaranty and Declaration

Safety Requirement

General Safety Summary

Overview of essential safety precautions for operating the instrument safely and preventing hazards.

Safety Terms and Symbols

General Care and Cleaning

General Care

Guidelines for storing and maintaining the instrument's condition to prevent damage.

Cleaning

Steps for cleaning the exterior surface of the instrument to maintain optimal performance.

Environmental Considerations

Product End-of-Life Handling

Information on the proper disposal and recycling of the product at the end of its service life.

Chapter 1 Specifications

DC Characteristics

Detailed accuracy specifications for DC voltage, current, and resistance measurements.

AC Characteristics

Detailed accuracy specifications for AC voltage and current measurements across various frequencies.

Frequency and Period Characteristics

Accuracy specifications for measuring frequency and period, including low frequency errors.

Capacitance Characteristics

Accuracy specifications for capacitance measurements and related measuring characteristics.

Temperature Characteristics

Accuracy specifications for temperature measurements using RTD and thermocouple probes.

Measurement Rate

Details on the measurement speed (readings per second) for different functions and settings.

Other Measurement Characteristics

Information on triggering, storage, VMC output, and history record capabilities of the instrument.

General Specifications

Overview of the instrument's display, power, environment, safety, EMC, weight, and interfaces.

Chapter 2 Performance Test

Test Type

Introduction to Self-test, Fast test, and Routine test methods for verifying instrument performance.

Testing Equipments

List of recommended equipment and precision requirements for performing instrument tests.

Test Conditions

Recommended environmental and operational conditions for accurate instrument performance testing.

Input Connections

Guidance on proper input terminal connections for various tests, including zero-offset and capacitance.

Routine Test

Procedures and specifications for performing routine tests, including zero-offset and gain tests.

Chapter 3 Calibration

Calibration Interval

Recommended calibration intervals based on measurement accuracy requirements.

Calibration Notice

Information regarding the necessity of recalibration to ensure measurement accuracy.

To Obtain Calibration Service

Instructions on how to send the instrument for professional calibration services.

Chapter 4 Disassembly & Assembly

Disassembly and Assembly Notices

Safety precautions and tools required for disassembling and assembling the instrument.

The 3D View of DM3068

Visual overview of the instrument's main parts to aid in disassembly and assembly understanding.

To Disassemble and Assemble Handle

Step-by-step instructions for removing and reattaching the instrument's handle.

To Disassemble and Assemble Rear Panel

Procedure for removing and reinstalling the rear panel of the instrument.

To Disassemble and Assemble Metallic Shell

Guidance on removing and reassembling the instrument's metallic outer shell.

To Disassemble and Assemble Fuse Seat

Instructions for disassembling and assembling the fuse seat component of the instrument.

To Disassemble and Assemble GPIB PCB

Procedure for removing and reinstalling the GPIB PCB within the instrument.

To Disassemble and Assemble Filter Board & Transformer

Steps for disassembling and reassembling the filter board and transformer assembly.

To Disassemble and Assemble Front Panel & LCD

Instructions for removing and reinstalling the front panel and LCD display assembly.

To Disassemble and Assemble the Fan

Procedure for disassembling and reassembling the instrument's internal fan.

To Disassemble and Assemble Mainboard

Guidance on removing and reinstalling the main logic board of the instrument.

To Disassemble and Assemble Keypad PCB

Steps for disassembling and reassembling the keypad PCB assembly.

Chapter 5 Troubleshooting & Maintenance

Troubleshooting

Common issues, potential causes, and solutions for instrument malfunctions and startup problems.

System Maintenance

Guidelines for maintaining instrument performance and extending its service life through proper usage.

Principles of Circuit

Overview of the instrument's circuit design, including floating, grounding, and power circuits.

Components Inspection

Procedures for inspecting key components like fuses and transformers to diagnose faults.

Replaceable Part list

List of available replaceable parts with their part numbers and quantities for maintenance.

Warranty

Information on the product warranty terms, coverage, and service contact details.