UNI-T UT39A User Manual

TABLE OF CONTENTS
TITLE PAGE
Overview
Unpacking Inspection
Safety Information
Rules For Safe Operation
International Electrical Symbols
The Meter Structure
Functional Buttons
Display Symbols
Measurement Operation
A. DC Voltage Measurement
B. AC Voltage Measurement
C. DC Current Measurement
D. AC Current Measurement
E. Measuring Resistance
F. Frequency Measurement (The Model UT39C only)
G. Temperature Measurement (The Model UT39C only)
H. Capacitance Measurement
I. Measuring Diodes & Continuity
J. Measuring Transistor
Sleep Mode
General Specifications
Accuracy Specifications
A. DC Voltage
B. AC Voltage
C. DC Current
D. AC Current
E. Resistance Test
F. Frequency (The Model UT39C only)
G. Temperature (The Model UT39C only)
H. Capacitance
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Model UT39A/B/C: OPERATING MANUAL

UNI-T UT39A Specifications

General

Diode test	Yes
Product type	Digital multimeter
AC current range	0.0002 - 10 A
AC voltage range	2 - 750 V
DC current range	0.00002 - 10 A
DC voltage range	0.2 - 1000 V
Capacitance range	2000 nF
Basic accuracy (DC current)	±(0.8%+1)
Basic accuracy (DC voltage)	±(0.5%+1)
Dimensions (WxDxH)	83 x 38 x 172 mm
Battery voltage	9 V

Weight and Dimensions

Weight	310 g

Summary

Product Overview

Unpacking Inspection Procedure

Check the following items carefully to see any missing or damaged part.

Safety Information and Warnings

Safe Operation Guidelines

International Electrical Symbols Guide

Meter Component Identification

Functional Button Operations

Display Symbol Meanings

Measurement Operations

DC Voltage Measurement Steps

Procedure for measuring DC voltage, including terminal connections and rotary switch settings.

AC Voltage Measurement

DC Current Measurement

AC Current Measurement

Resistance Measurement

Frequency Measurement

Temperature Measurement

Capacitance Measurement

Diode and Continuity Testing

Transistor Measurement

Sleep Mode Functionality

General Device Specifications

Accuracy Specifications Overview

DC Voltage Accuracy Details

Accuracy specifications for DC voltage measurements across different ranges.

AC Voltage Accuracy Details

Accuracy specifications for AC voltage measurements across different ranges.

DC Current Accuracy

AC Current Accuracy

Resistance Measurement Accuracy

Frequency Measurement Accuracy

Temperature Measurement Accuracy

Capacitance Measurement Accuracy

Diode and Continuity Test Specs

Transistor Test Specifications

Device Maintenance

General Service and Cleaning

Periodic cleaning and care of the meter to maintain performance and prevent damage.

Battery Replacement Guide

Procedure for replacing the meter's battery when the indicator appears.

Fuse Replacement Procedure