UNI-T UT51-55 User Manual

Contents
A Your Meters Feature
B Specifications
C Making Measurements
D Maintenance
E Accessories
F Using Holster
G Using Strap
Introduction
One kind of UNI-T brand new UT50 series
Multimeters is a 3 1/2 digit with steady function
and highly reliable hand-held measuring instrument.
The Meter uses large scale of integrated circuit
with double integrated A/D converter as its core
and has full range overload protection. The Meter
can measure DC current, AC current, DC Voltage,
AC Voltage, Resistance, Capacitance, Diode,
Temperature, Frequency and Continuity, which is
an ideal tool for users.
Model UT51-55: OPERATING MANUAL
1

UNI-T UT51-55 Specifications

General

Display	LCD
Diode Test	Yes
Continuity Buzzer	Yes
NCV	No
Category	Multimeter
Type	Digital
DC Current	10A
AC Current	10A
Battery Type	9V (6F22)

Summary

UNI-T UT50 Series Meter Features

UNI-T UT50 Series Specifications

DC Voltage Measurement Specifications

Details specifications for measuring DC voltage, including range, resolution, and accuracy.

AC Voltage Measurement Specifications

Details specifications for measuring AC voltage, including range, resolution, and accuracy.

DC Current Measurement Specifications

Details specifications for measuring DC current, including range, resolution, and accuracy.

AC Current Measurement Specifications

Details specifications for measuring AC current, including range, resolution, and accuracy.

Resistance Measurement Specifications

Details specifications for measuring resistance, including range, resolution, and accuracy.

Capacitance Measurement Specifications

Details specifications for measuring capacitance, including range, resolution, and accuracy.

Frequency Measurement Specifications

Details specifications for measuring frequency, including range, resolution, and accuracy.

Temperature Measurement Specifications

Details specifications for measuring temperature, including range, resolution, and accuracy.

Diode & Continuity Test Specifications

Details specifications for diode test and continuity beeper functions, including conditions.

Transistor hFE Test Specifications

Details specifications for transistor hFE testing, including measurement conditions.

UNI-T UT50 Series Measurement Guide

How to Measure DC Voltage

Step-by-step guide on connecting leads and setting the meter for DC voltage measurement.

How to Measure AC Voltage

Step-by-step guide on connecting leads and setting the meter for AC voltage measurement.

How to Measure DC Current

Step-by-step guide on connecting leads and setting the meter for DC current measurement.

How to Measure AC Current

Step-by-step guide on connecting leads and setting the meter for AC current measurement.

How to Measure Resistance

Step-by-step guide on connecting leads and setting the meter for resistance measurement.

How to Measure Capacitance

Steps to measure capacitance, including precautions and unit definitions.

How to Measure Frequency

Steps to measure frequency, including lead connection and rotary switch settings.

How to Measure Temperature

Procedure for measuring temperature using the meter and probe.

How to Perform Diode & Continuity Test

Procedure for performing diode tests and continuity checks with the meter.

How to Perform Transistor hFE Test

Procedure for measuring transistor hFE, including identifying transistor type and connection.

Auto-Power Off Functionality

Explanation of the auto-power off feature and how to re-activate the meter.

UNI-T UT50 Series Maintenance and Care

General Meter Service Guidelines

Guidelines for general meter service, emphasizing not altering internal circuits.

Battery Replacement Procedure

Instructions and cautions for replacing the meter's battery.

Fuse Replacement Procedure

Procedure and cautions for replacing meter fuses, specifying types and ratings.

UNI-T UT50 Series Included Accessories

UNI-T UT50 Series Holster Usage

UNI-T UT50 Series Strap Attachment