Unit UT211 Manuale utente
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 & AC Voltage Measurement
B. AC Current Measurement
C. Measuring Resistance
D. Frequency and Duty Cycle Measurement
E. Operation of Hold Mode
General Specifications
Accuracy Specifications
A. DC Voltage
3
4
5
7
9
10
10
11
13
13
15
16
18
18
20
22
22
Model UT211: OPERATING MANUAL
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Title Page
B. AC Voltage
C. AC Current
D. Resistance
E. Frequency
F. Duty Cycle
Maintenance
A. General Service
B. Replacing the Battery
23
23
24
25
25
26
26
26
Model UT211: OPERATING MANUAL
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Overview
Warning
This Operating Manual covers information on safety and cautions. Please read the
relevant information carefully and observe all the Warnings and Notes strictly.
To avoid electric shock or personal injury, read the “Safety Information” and “Rules
for Safety Operation” carefully before using the Meter.
The Model UT211 (hereafter referred to as “the Meter”) are a 3999 counts 3 3/4 digits
auto clamp multimeter, they auto sense onAC & DC voltage,AC current and resistance
measurement. They have full range overload protection and special outlook design.
They are such a smart electrical testing clamp meter.
It equips also with frequency, duty cycle, low battery display and data hold features.
Model UT211: OPERATING MANUAL
3
Unpacking Inspection
Open the package case and take out the Meter. Check the following items carefully
to see any missing or damaged part:
Item Description Qty
1
2Operating Manual
Test Lead 1 piece
1 pair
In the event you find any missing or damage, please contact your dealer immediately.
9V Battery (NEDA 1604, 6F22 or 0006P)
(installed inside the Meter) 1 piece3
Model UT211: OPERATING MANUAL
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Safety Information
This Meter complies with the standards IEC61010: in pollution degree 2, overvoltage
category (CAT. II 600V / CAT III 300V) and double insulation.
CAT II: Local level, appliance, PORTABLE EQUIPMENT etc., with smaller transient
voltage overvoltages than CAT. III
CAT. III: Distribution level, fixed installation, with smaller transient overvoltages than
CAT. IV.
Under the influence of Radiated, Radio-Frequency Electromagnetic Field phenomenon,
the UT211 may malfunction and can self-recover after the test.
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 pose hazards to the
user, or may damage the Meter or the equipment under test.
Model UT211: OPERATING MANUAL
5
A Note identifies the information that user should pay attention on.
International electrical symbols used on the Meter and in this Operating Manual are
explained on page 9.
Model UT211: OPERATING MANUAL
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Warning
Rules For Safe Operation
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:
Check for the lever is in good condition when measuring AC current.
Must center the wire (conductor) within the transformer jaw.
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 600V, between the terminals or
between any terminal and grounding.
When the Meter working at an effective voltage over 60V in DC or 30V in AC,
special care should be taken for there is danger of electric shock.
When using the test leads, keep your fingers behind the finger guards.
Model UT211: OPERATING MANUAL
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Disconnect circuit power and discharge all high-voltage capacitors before
testing resistance.
Replace the battery as soon as the battery indicator appears or no display
when turning on the Meter. With a low battery, the Meter might produce
false readings that can lead to electric shock and personal injury.
Before carrying out any measurement, make sure the Meter is in good
condition after turning it on.
When servicing the Meter, use only the same model number or identical
electrical specifications replacement parts.
The internal circuit of the Meter shall not be altered at will to avoid damage
of the Meter and any accident.
Soft cloth and mild detergent should be used to clean the surface of the
Meter when servicing. No abrasive and solvent should be used to prevent
the surface of the Meter from corrosion, damage and accident.
Turn the Meter off when it is not in use and take out the battery when not
using for a long time.
Constantly check the battery as it may leak when it has been using for some
time, replace the battery as soon as leaking appears. A leaking battery will
damage the Meter.
Model UT211: OPERATING MANUAL
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International Electrical Symbols
Do not use or store the Meter in an environment of high temperature, humidity,
explosive, inflammable and strong magnetic field. The performance of the
Meter may deteriorate after dampened.
Deficiency of Built-In Battery
AC or DC
Grounding
The allowed removable dangerous voltages existed between the leads.
Conforms to Standards of European Union
Warning. Refer to the Operating Manual
Double Insulated
Model UT211: OPERATING MANUAL
9
The Meter Structure (see figure 1)
(figure 1)
1. Transformer Jaws designed to pick up the AC
current flowing through the conductor.
2. LCD Display.
3. Function Buttons
4. Input Terminals
Functional Buttons
Button Operation Performed
Hz/%
HOLD
Press to select Frequency or Duty Cycle measurement mode.
Press HOLD to enter the Hold mode in any mode
Press to turn the Meter on and off.
(POWER)
2
3
1
4
Below table indicated for information about the functional
button operations.
Model UT211: OPERATING MANUAL
10
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