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UT71B
UNI-T UT71B User Manual
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46
Model UT71A/B/C/D/E: OPERA
TING MANUAL
Note
The current of the object being measured must >
10A.
5A
continuous measurement is allowed.
5A~10A, only
10 seconds continuous measurement
is allowed and the interval between each
measurement must be greater than 15 minutes.
When power measurement has been completed,
first switch off the power
, then disconnect the
connection between the adaptor and the outlet.
l
l
48
50
Table of Contents
Default Chapter
4
Table of Contents
4
1 Before You Start
8
Overview
8
Unpacking Inspection
9
Safety Information
10
Rules for Safe Operation
10
International Electrical Symbols
12
2 Getting Acquainted
13
Turning the Meter on
13
Battery Considerations
13
Automatic Power off
13
Automatic Backlight off
13
Low Battery Indication
14
The Meter Structure
14
Rotary Switch
15
Resistance
16
Continuity Test
16
Diode Test
16
Functional Buttons
18
The Meter Functions Vs Displays
24
Selecting the Range
27
Understanding the Display
27
Analogue Bar Graph
32
Using MAX MIN
32
3 Making Measurements
33
Introduction
33
Measuring Voltages
33
Measuring Currents
35
Measuring Resistance
37
Testing for Continuity
38
Testing Diodes
40
Measuring Capacitance
42
Capacitance
42
Measuring Frequency / Duty Cycle
44
Measuring Temperature
46
4~20Ma Loop Current as % Readout
47
I. 4~20Ma Loop Current as % Readout
47
Power Measurement
48
4 Using Stores, Recall and Send Features
50
Introduction
50
Storing and Clearing Readings
50
Recalling Stored Readings
51
Using Send
51
5 Changing the Default Setting
52
Introduction
52
Selecting Setup Options
52
6 Maintenance
55
General Service
55
Replacing the Fuses
56
Replacing the Battery
57
7 Specifications
58
Safety and Compliances
58
Physical Specifications
59
General Specifications
60
Feature Summary
61
Basic Specifications
62
Detailed Accuracy Specifications
63
DC Voltage
63
AC Voltage
64
DC Current
66
AC Current
67
E. Resistance
68
G. Diode Test
69
I. Frequency
70
K. 4~20Ma Loop Current
72
4
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UNI-T UT71B Specifications
General
Brand
UNI-T
Model
UT71B
Category
Multimeter
Language
English
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