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UNI-T UT71C User Manual

UNI-T UT71C
71 pages
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Model UT71C/D/E
OPERATING MANUAL
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UNI-T UT71C Specifications

General IconGeneral
TypeDigital Multimeter
Diode TestYes
Continuity TestYes
Data HoldYes
Auto Power OffYes
Power Supply9V Battery
Frequency Range10Hz to 10MHz
Temperature Range-40°C to 1000°C

Summary

Before You Start

Overview

General introduction to the manual and the multimeter's capabilities and safety precautions.

Unpacking Inspection

Instructions for checking package contents to ensure no items are missing or damaged.

Safety Information

Essential safety guidelines, including warnings and notes for hazard identification.

Rules For Safe Operation

Specific rules to follow to avoid electric shock, personal injury, or equipment damage.

International Electrical Symbols

Explanation of international electrical symbols used in the manual and on the meter.

Getting Acquainted

Turning the Meter On

Procedure for powering on the multimeter by turning the rotary switch.

Battery Considerations

Information about the 9V battery type and techniques for conserving battery power.

Automatic Power Off

Details on the meter's automatic power off feature and its configurable timing.

Automatic Backlight Off

Explanation of the automatic backlight turn-off feature and its settings.

Low Battery Indication

How the meter indicates a low battery and the importance of replacing batteries promptly.

The Meter Structure

Diagram illustrating the meter's main components like display, buttons, and terminals.

Rotary Switch

Guide to using the rotary switch to select measurement functions and alternate functions.

Functional Buttons

Description of various buttons and their primary and secondary functions.

Meter Functions vs Displays

Cross-reference table showing meter functions and their corresponding primary/secondary displays.

Selecting the Range

How to select between autoranging and manual ranging for measurements.

Understanding the Display

Explanation of display features, icons, and their meanings.

Making Measurements

Measuring Voltages

Step-by-step guide for measuring AC and DC voltages with safety precautions.

Measuring Currents

Procedure for measuring AC and DC currents, including fuse checks and connection methods.

Measuring Resistance

Instructions for measuring resistance, including safety and connection details.

Testing for Continuity

How to perform continuity tests using the meter, including buzzer indication.

Testing Diodes

Procedure for testing diodes and semiconductor junctions, including voltage drop interpretation.

Measuring Capacitance

Guide for measuring capacitance, including discharge procedures and accuracy tips.

Measuring Frequency / Duty Cycle

How to measure frequency and duty cycle, with input amplitude requirements.

Measuring Temperature

Instructions for measuring temperature using the K-Type probe and unit selection.

4-20mA Loop Current Reading

How to use the 4-20mA loop feature to display readings as a percentage.

Power Measurement

Procedure for measuring power, including voltage and current input requirements.

Using Store, Recall & Send Features

Storing and Clearing Readings

How to store measurement readings, manage the interval, and clear stored data.

Recalling Stored Readings

Procedure to recall previously stored measurement values from memory.

Using Send Feature

Instructions for exporting stored data to a computer via USB using the Send feature.

Changing the Default Setting

Selecting Setup Options

How to enter Setup mode and change configuration options like auto power off and backlight.

Maintenance

General Service

Basic maintenance procedures including cleaning the case and terminals.

Replacing the Fuses

Step-by-step guide for safely replacing the internal fuses.

Replacing the Battery

Instructions for replacing the 9V battery, emphasizing safety during the process.

Specifications

Safety and Compliances

Details on safety standards, certifications, and fused protection for input terminals.

Physical Specifications

Information on the meter's dimensions, weight, display resolution, and operating environment.

General Specifications

General operational specifications including range, polarity, overloading, and battery deficiency.

Feature Summary

A concise summary of the multimeter's key features and capabilities.

Basic Specifications

Core technical specifications for various measurement functions like voltage, current, and resistance.

Detailed Accuracy Specifications

In-depth accuracy data for each measurement range, including resolution and overload protection.

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