Unit UT71A Bedienungsanleitung
P/N:110401103779
Model UT71A/B/C/D/E
OPERATING MANUAL
CHAPTER TITLE PAGE
Model UT71A/B/C/D/E: OPERATING MANUAL
1
TABLE OF CONTENTS
1.
2.
5
5
6
7
7
9
10
10
10
10
10
11
11
12
15
21
24
24
Before You Start
Overview
Unpacking Inspection
Safety Information
Rules For Safe Operation
International Electrical Symbols
Getting Acquainted
Turning the Meter On
Battery Considerations
Automatic Power Off
Automatic Backlight Off
Low Battery Indication
The Meter Structure
Rotary Switch
Functional Buttons
The Meter Functions Vs Displays
Selecting the Range
Understanding the Display
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Model UT71A/B/C/D/E: OPERATING MANUAL
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30
30
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32
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35
37
39
41
43
44
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47
47
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48
48
3.
4.
CHAPTER TITLE PAGE
Analogue Bar Graph
Using MAX MIN
Making Measurements
Introduction
A. Measuring Voltages
B. Measuring Currents
C. Measuring Resistance
D. Testing for Continuity
E. Testing Diodes
F. Measuring Capacitance
G. Measuring Frequency / Duty Cycle
H. Measuring Temperature
I. 4~20mA loop current as % readout
J. Power Measurement
Using Stores, Recall and Send Features
Introduction
Storing and Clearing Readings
Recalling Stored Readings
Using Send
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Model UT71A/B/C/D/E: OPERATING MANUAL
5.
6.
7.
CHAPTER TITLE PAGE
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52
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53
54
55
55
56
57
58
59
60
60
61
63
64
Changing the Default Setting
Introduction
Selecting Setup Options
Maintenance
A. General Service
B. Replacing the Fuses
C. Replacing the Battery
Specifications
Safety and Compliances
Physical Specifications
General Specifications
Feature Summary
Basic Specifications
Detailed Accuracy Specifications
A. DC Voltage
B. AC Voltage
C. DC Current
D. AC Current
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Model UT71A/B/C/D/E: OPERATING MANUAL
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CHAPTER TITLE PAGE
E. Resistance
F. Continuity Test
G. Diode Test
H. Capacitance
I. Frequency
J. Temperature Degrees Celsius Fahrenheit
K. 4~20mA loop current
L. Power Measurement
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Model UT71A/B/C/D/E: OPERATING MANUAL
Chapter 1
Before You Start
Overview
This Operating Manual covers information on safety and cautions. Please read the relevant information carefully and
observe all the Warnings and Notes strictly.
Warning
To avoid electric shock or personal injury, read the"Safety Information"and "Rules for Safe Operation"carefully
before using the Meter.
Digital Multimeter UT71A/B (hereafter referred to as "the Meter") is a 20000 counts and 4 1/2 digits with steady
operations; Digital Multimeter UT71C/D/E (hereafter referred to as "the Meter") is a 40000 counts and 4 3/4 digits
with steady operations, fashionable structure and auto ranging instrument. They all not only can measure AC voltage
and current, DC voltage and current, Resistance, Capacitance, Temperature, Frequency, Diodes, Continuity, 4~20mA
Loop, Max/Min, Relative Mode but also has Data Store, Data Recall, AC True RMS, AC+DC,Low Battery Display,
Double Display Backlight, Data Hold, Automatic Power Off and full overload protection.
UT71B/C/D/E has extra Temperature, 4~20mA Loop, Data Store and Data Recall feature; UT71E has extra Power
Measurement feature.
6
Model UT71A/B/C/D/E: OPERATING MANUAL
Unpacking Inspection
Open the package case and take out the Meter. Check the items shown on Table 1-1 carefully to see any missing
or damaged part:
Table 1-1. Unpacking Inspection
Item Description Qty
In the event you find any missing or damage, please contact your dealer immediately.
1
2
3
4
5
6
7
8
9
10
English Operating Manual
Test Lead
K-Type (nickel chromium ~ nickel silicon) Point Contact Temperature Probe (It is
only suitable for measuring temperature under 230 oC
Alligator Clip
Test Clip
USB interface cable
CD-ROM (Installation Guide & Computer Interface Software)
Carrying Bag
Power Adaptor (UT71E only)
9V Battery (NEDA 1604, 6F22, 006P)
1 piece
1 pair
1 piece
1 piece
1 pair
1 piece
1 piece
1 piece
1 piece
1 piece
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Model UT71A/B/C/D/E: OPERATING MANUAL
Safety Information
This Meter complies with the standards IEC61010 safety
measurement requirement: in pollution degree 2,
overvoltage category (CAT. III 1000V, CAT.IV 600V)
and double insulation.
CAT. III: Distribution level, fixed installation, with smaller
transient overvoltage than CAT. IV
CAT.IV: Primary supply level, overhead lines, cable
systems etc.
Use the Meter only as specified in this operating manual,
otherwise the protection provided by the Meter may be
impaired.
In this manual, a Warning identifies conditions and
actions that may pose hazards to the user, or may
damage the Meter or the equipment under test.
A Note identifies the information that user should pay
attention to.
International electrical symbols used on the Meter and
in this Operating Manual are explained on page 9.
Rules For Safe Operation
Warning
To avoid possible electric shock or personal injury,
and to avoid possible damage to the Meter or to the
equipment under test, adhere to the following rules:
Before using the Meter inspect the case. Do not
use the Meter if it is damaged or the case (or part
of the case) is removed. Look for cracks or missing
plastic. Pay attention to the insulation around the
connectors.
Inspect the test leads for damaged insulation or
exposed metal. Check the test leads for continuity.
Replace damaged test leads with identical model
number or electrical specifications before using the
Meter.
Do not apply more than the rated voltage, as marked
on the Meter, between the terminals or between any
terminal and grounding.
The rotary switch should be placed in the right
position and no any changeover of range shall be
made during measurement is conducted to prevent
damage of the Meter.
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Andere Handbücher für UT71A
1
Dieses Handbuch passt für folgende Modelle
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