Unit UT207 Bedienungsanleitung
Model UT207/208
OPERATING MANUAL
Table of Contents
Title Page
Overview
Unpacking Inspection
Safety Information
Rules For Safe Operation
International Electrical Symbols
The Meter Structure
Functional Buttons
The Effectiveness of Functional Buttons
Display Symbols
Measurement Operation
A. DC/AC Voltage Measurement
B. Measuring Resistance
C. Testing Diodes
D. Testing for Continuity
E. Frequency Measurement
F. Duty Cycle Measurement
4
5
6
7
10
11
12
14
15
18
18
20
22
24
26
28
Model UT207/208: OPERATING MANUAL
1
Title Page
30
32
35
37
38
38
39
40
40
41
42
42
43
44
45
45
G. DC Current Measurement
H. AC Current Measurement
I. UT208 only: Temperature Measurement
Sleep Mode
Specifications
A. General Specifications
B. Environmental Requirements
Accuracy Specifications
A. DC Voltage
B. AC Voltage
C. Resistance
D. Diode Test
E. Continuity Test
F. Frequency
G. Duty Cycle
H. DC Current
Model UT207/208: OPERATING MANUAL
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Title Page
47
48
49
49
50
I. AC Current
J. Temperature (UT208 only)
Maintenance
A. General Service
B. Replacing the Battery
Model UT207/208: OPERATING MANUAL
3
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 Clamp Multimeter Model UT207/UT208 (hereafter referred to as “the Meter”)
are 3 5/6 digits with steady operations, fashionable structure and highly reliable
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 AC/DC Voltage, AC/DC Current, Frequency, Duty Cycle,
Resistance, Diodes, Continuity, Surge Current and etc.
UT208 has an extra temperature feature.
Model UT207/208: OPERATING MANUAL
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Item Description Qty
1
2
3
4
5
English Operating Manual
Test Lead
Point Contact Temperature Probe (Only UT208) (This
included point contact temperature probe can only be used
up to 230 . For any measurement is higher than that, the
rod type temperature probe must be used)
Tool box
9V Battery (NEDA1604A or 6LF22)
1 piece
1 pair
1 pair
1 piece
1 piece
Unpacking Inspection
Open the package case and take out the Meter. Check the following items carefully
to see any missing or damaged part:
In the event you find any missing or damage, please contact your dealer immediately.
Model UT207/208: OPERATING MANUAL
5
Safety Information
This Meter complies with the standards IEC61010-1; IEC61010-2-032: 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
overvoltages than CAT. III.
CAT. III: Distribution level, fixed installation, with smaller transient overvoltages than
CAT. IV
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.
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 10.
Model UT207/208: OPERATING MANUAL
6
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:
Warning
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 that the rated voltage, as marked on the Meter , between
the terminals or between any terminal and grounding. If the value to be
measured is unknown, use the maximum measurement position and reduce
the range step by step until a satisfactory reading is obtained.
When measurement has been completed, disconnect the connection between
the test leads and the circuit under test, remove the testing leads awayl
Model UT207/208: OPERATING MANUAL
7
from the input terminals of the Meter and turn the Meter power off.
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.
Do not carry out the measurement when the Meter’s back case and battery
compartment are not closed to avoid electric shock.
Do not input higher than 600V between the two Meter’s input terminal to
avoid electric shock and damages to the Meter.
When the Meter working at an effective voltage over 70V in DC or 33V rms
in AC, special care should be taken for there is danger of electric shock.
Use the proper terminals, function, and range for your measurements.
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.
When using the test leads, keep your fingers behind the finger guards.
To avoid electric shock, do not touch the bare wires, connectors, unused
input terminals or the circuit under testing during measurement.
Disconnect circuit power and discharge all high-voltage capacitors before
testing resistance, continuity and diode.
Model UT207/208: OPERATING MANUAL
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Replace the battery as soon as the battery indicator appears. With a
low battery, the Meter might produce false readings that can lead to electric
shock and personal injury.
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.
The Meter is suitable for indoor use.
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 UT207/208: OPERATING MANUAL
9
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