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UT71C
UNI-T UT71C User Manual
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60
Model UT71C/D/E: OPERA
TING MANUAL
A. DC V
oltage
Range
Resolution
Accuracy
Overload Protection
400mV
4V
40V
400V
1000V
1000V
Input Impedance
Around 2.5G
Around 10M
(0.025%+5)
(0.05%+5)
(0.1%+8)
Detailed
Accuracy Specifications
Accuracy:
([% of reading] + [number of least significant digits), guarantee for 1 year
.
Operating temperature: 18ºC~28ºC
Relative humidity:
75%RH
0.01mV
0.0001V
0.001V
0.01V
0.1V
60
62
Table of Contents
Default Chapter
2
Table of Contents
2
1 Before You Start
6
Overview
6
Unpacking Inspection
7
Safety Information
8
Rules for Safe Operation
8
International Electrical Symbols
10
2 Getting Acquainted
11
Turning the Meter on
11
Battery Considerations
11
Automatic Power off
11
Automatic Backlight off
11
Low Battery Indication
12
The Meter Structure
12
Rotary Switch
13
Functional Buttons
16
The Meter Functions Vs Displays
22
Selecting the Range
25
Understanding the Display
25
Analogue Bar Graph
30
Using MAX MIN
30
3 Making Measurements
31
Introduction
31
Measuring Voltages
31
Measuring Currents
33
Measuring Resistance
35
Testing for Continuity
36
Testing Diodes
38
Measuring Capacitance
40
Measuring Frequency / Duty Cycle
42
Measuring Temperature
44
4~20Ma Loop Current as % Readout
45
Power Measurement
46
4 Using Stores, Recall and Send Features
48
Introduction
48
Storing and Clearing Readings
48
Recalling Stored Readings
49
Using Send
49
5 Changing the Default Setting
50
Introduction
50
Selecting Setup Options
50
6 Maintenance
53
General Service
53
Replacing the Fuses
54
Replacing the Battery
55
7 Specifications
56
Safety and Compliances
56
Physical Specifications
57
General Specifications
58
Feature Summary
59
Basic Specifications
60
Detailed Accuracy Specifications
61
DC Voltage
61
AC Voltage
62
DC Current
64
AC Current
65
E. Resistance
66
F. Continuity Test
66
G. Diode Test
67
H. Capacitance
67
I. Frequency
68
L. Power Measurement
70
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UNI-T UT71C Specifications
General
Brand
UNI-T
Model
UT71C
Category
Multimeter
Language
English
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