UT207A/208A/209A Operating Manual
Table of Contents
Title Page
Overview
Unpacking Inspection
Safety Information
Rules for Safe Operation
International Electrical Symbols
The Meter Structure
Display Symbols
Functional Buttons
The Effectiveness of Functional Buttons
Measurement Operation
A. DC/AC Voltage Measurement
B. Measuring Resistance
C. Testing for Continuity
D. Testing Diodes
E. Frequency and Duty Cycle Measurement
F. DC/AC Current Measurement
G. Temperature Measurement(UT208A only)
H. Capacitance measurement(UT208A only)
1
3
4
5
6
9
10
11
13
15
16
16
18
20
22
25
27
31
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UT207A/208A/209A Operating Manual
Specications
A. General Specications
B. Environmental Requirements
Accuracy Specications
Maintenance
A. General Service
B. Replacing the Battery
35
35
36
37
43
43
44
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UT207A/208A/209A Operating Manual
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 UT207A/UT208A/UT209A (hereafter referred to
as “the Meter”) are 3 3/4 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 and etc.
UT208A has an extra temperature and Capacitance feature.
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UT207A/208A/209A Operating Manual
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 English Operating Manual 1 piece
2 Test Lead 1 pair
3 Point Contact Temperature Probe (Only UT208A) (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)
4 Tool box 1 piece
5 9V Battery (NEDA1604A or 6LF22) 1 piece
In the event you nd any missing or damage, please contact your dealer
immediately.
4
1 pair
UT207A/208A/209A Operating Manual
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 overvoltages than CAT III.
CAT III: Distribution level, xed installation, with smaller transient overvoltages
than CAT IV.
Use the Meter only as specied in this operating manual, otherwise the protection
provided by the Meter may be impaired.
In this manual, a Warning identies conditions and actions that pose hazards to
the user, or may damage the Meter or the equipment under test.
A Note identies 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.
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UT207A/208A/209A Operating Manual
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 specications 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
away 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
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UT207A/208A/209A Operating Manual
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 1000V in DC or 750 V in AC 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, inammable and strong magnetic eld. The
performance of the Meter may deteriorate after dampened.
● When using the test leads, keep your ngers behind the nger 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.
● 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
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UT207A/208A/209A Operating Manual
electrical specications 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.
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UT207A/208A/209A Operating Manual
International Electrical Symbols
Double Insulated
Grounding
Warning. Refer to the Operating Manual
AC (Alternating Current)
DC (Direct Current)
Continuity Test
Diode
Deciency of Built-In Battery
AC or DC
Danger of High Voltage
Conforms to Standards of European Union
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UT207A/208A/209A Operating Manual
The Meter Structure (see gure 1)
① Hand Guards: to protect user’s hand from
touching the dangerous area.
② Trigger: press the lever to open the
transformer jaws. When the pressure on
the lever is released, the jaws will close.
③ Functional Buttons
④ Input Terminals
⑤ LCD Display
⑥ Rotary Switch
⑦ Transformer Jaw: designed to pick up
the AC and DC current owing through
the conductor. It could transfer current
to voltage. The tested conductor must
vertically go through the Jaw center.
10
Figure 1
UT207A/208A/209A Operating Manual
Display Symbols (see gure 2)
Figure 2
1. Test of diode
2. The continuity buzzer is on
3. Indicator for zeroing
4. Data hold is active
5. The Meter is in the auto range mode in which the Meter automatically selects
the range with the best resolution.
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UT207A/208A/209A Operating Manual
6. True RMS indicator
7. Indicator for AC voltage or current
8. Indicates negative reading
9. Indicator for DC voltage
10. The battery is low.
Warning: To avoid false readings, which could lead to possible electric shock
or personal injury, replace the battery as soon as the battery indicator
appears.
11. The unit of transistor hEF
12. The unit of temperature, ℃: Centigrade temperature
13. The unit of temperature, ℉: Fahrenheit temperature
14. The unit of capacitance (UT208A only)
15. Volts. The unit of voltage. mV: Millivolt.
16. Amperes (amps). The unit of current.
17. The unit of resistance. (Ω: Ohm, kΩ:Kilohm, MΩ:Megohm )
18. The unit of frequency. (Hz: Hertz, KHz: Kilohertz, MHz: Meghertz)
19. Duty cycle measurement
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UT207A/208A/209A Operating Manual
Functional Buttons
Below table indicated for information about the functional button operations.
Button
SELECT
RANGE
HOLD
Operation Performed
Press SELECT button to select the alternate functions including
V , A and . ( UT208A only)
Range feature:
Exit AUTO and enter MANUAL ranging.
In MANUAL, select next input range. EXIT to return to AUTO.
AUTO is default.
Press once to turn the display backlight on. Press again to turn
the display backlight off, otherwise it will automatically off after
15 seconds.
● Press HOLD to enter the Hold mode in any mode (except
%Hz), the Meter beeps.
● Press HOLD again to exit the Hold mode to return to
measurement mode, the Meter beeps.
● Turn the rotary switch or press any button can also exit hold
mode.
Ω
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UT207A/208A/209A Operating Manual
Hz%
ZERO
Automatic Power Off
The display blanks and the Meter goes into a “sleep” mode if you have not
changed the rotary switch position or pressed a button for 15 minutes. While
in Sleep mode, pressing the any effective Functional button or turning the
rotary switch could turn the Meter on. To disable the sleep mode function, press
SELECT button while turning on the meter.
When the Meter is at %Hz, V and A , press %Hz to
measure frequency and duty cycle.
Press ZERO to zeroing the display before measuring AC/DC
voltage, AC/DC current, resistance and capacitance.
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UT207A/208A/209A Operating Manual
The Effectiveness of Functional Buttons
Not every functional buttons can be used on every rotary switch positions. Below
table describe which functional buttons can be used on which rotary switch
positions.
Rotary Switch Functional Buttons
Positions SELECT RANGE HOLD ZERO
V
●
●
●
●
●
%Hz
●
Ω
%Hz
40A
400A
1000A
℃
●
N/A
N/A
●
●
●
N/A
N/A
●
N/A
N/A
N/A
N/A
N/A
●
●
●
●
●
●
●
15
●
●
N/A
●
●
●
●
N/A
N/A
●
●
●
●
N/A
●
●
N/A
●
●
●
N/A
UT207A/208A/209A Operating Manual
Measurement Operation
A. DC/AC Voltage Measurement (see gure 3)
Figure 3
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UT207A/208A/209A Operating Manual
Warning
To avoid harms to you or damages to the Meter from eletric shock, do not
attempt to measure voltages higher than 750V AC or 1000V DC, although
readings may be obtained.
To measure DC/AC voltages, connect the Meter as follows:
1. Insert the red test lead into the V Hz terminal and black test lead into the
COM terminal.
2. Set the rotary switch to V . DC mesaurement mode is a default. Press
SELECT to switch to AC measurement mode. Press RANGE to enter manual
ranging.
3. Press Hz% button to measure frequency or duty cycle, but the frequency or
duty cycle readings obtained from this range is only for reference.
4. Connect the test leads across with the object being measured. The measured
value shows on the display.
Note:
● AC Millivolt is a manual ranging measurement mode.
● In each range, the Meter has an input impedance of 10MΩ. This loading
effect can cause measurement errors in high impedance circuits. If the
Ω
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UT207A/208A/209A Operating Manual
circuit impedance is less than or equal to 10kΩ, the error is negligible (0.1%
or less).
● When DC/AC voltage measurement has been completed, disconnect the
connection between the testing leads and the circuit under test and remove
testing leads from the input terminals.
B. Measuring Resistance (see gure 4)
Warning
To avoid damages to the Meter or to the devices under test, disconnect
circuit power and discharge all the high-voltage capacitors before
measuring resistance.
To measure resistance, connect the Meter as follows:
1. Insert the red test lead into the VΩHz terminal and black test lead into the
COM terminal.
2. Set the rotary switch to Ω
3. Connect the test leads across with the object being measured. The measured
value shows on the display.
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UT207A/208A/209A Operating Manual
Figure 4
Note:
● To obtain a more precise reading, you could remove the objects being tested
from the circuit when measuring.
● The test leads can add 0.1Ω to 0.3Ω of error to resistance measurement. To
obtain precision readings in low-resistance measurement, short-circuit the
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UT207A/208A/209A Operating Manual
input terminals beforehand, press ZERO to automatically subtract the value
measured when the testing leads are short-circuited from the reading.
● For high-resistance measurement (>1MΩ), it is normal to take several
seconds to obtain a stable reading.
● To avoid harms to you or damages to the Meter from eletric shock, do not
attempt to input voltages higher than 33V AC or 70V DC.
● When resistance measurement has been completed, disconnect the
connection between the testing leads and the circuit under test and remove
testing leads from the input terminals.
Testing for Continuity (see gure 5)
Warning
To avoid damages to the Meter or to the devices under test, disconnect
circuit power and discharge all the high-voltage capacitors before
measuring continuity.
To test for continuity, connect the Meter as follows:
1. Insert the red test lead into the VΩHz terminal and the black test lead into the
COM terminal.
2. Set the rotary switch to and press SELECT button to select
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UT207A/208A/209A Operating Manual
measurement mode.
3. The buzzer sounds if the resistance of a circuit under test is less than 10Ω.
4. The buzzer may or may not sound if the resistance of a circuit under test is
between 10Ω to 100Ω.
5. The buzzer does not sound if the resistance of a circuit under test is higher
than 100Ω.
Figure 5
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UT207A/208A/209A Operating Manual
Note
● To avoid harms to you or damages to the Meter from eletric shock, do not
attempt to input voltages higher than 33V AC or 70V DC.
● When continuity testing has been completed, disconnect the connection
between the testing leads and the circuit under test and remove testing leads
from the input terminals.
D. Testing Diodes (see gure 6)
Warning
To avoid damages to the Meter or to the devices under test, disconnect
circuit power and discharge all the high-voltage capacitors before testing
diodes.
Use the diode test to check diodes, transistors, and other semiconductor devices.
The diode test sends a current through the semicondutor junction, then measure
the voltage drop across the junction. A good silicon junction drops between 0.5V
and 0.8V.
To test the diode out of a circuit, connect the Meter as follows:
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UT207A/208A/209A Operating Manual
1. Insert the red test lead into the VΩHz terminal and black test lead into the
COM terminal.
2. Set the rotary switch to . Press SELECT to switch to measurement
mode. For forward voltage drop readings on any semiconductor component,
place the red test lead on the component’s anode and place the black test
lead on the component’s cathode. The LCD will display OL indicating diode
being tested is open or polarity error display.
Note
● To obtain a more precise reading, you could remove the objects being tested
from the circuit when measuring.
● To avoid harms to you or damages to the Meter from eletric shock, do not
attempt to input voltages higher than 33V AC or 70V DC.
● When diode testing has been completed, disconnect the connection between
the testing leads and the circuit under test and remove testing leads from the
input terminals.
23
Figure 6
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UT207A/208A/209A Operating Manual
UT207A/208A/209A Operating Manual
E. Frequency and Duty Cycle Measurement (see gure 7)
Warning
To avoid harms to you or damages to the Meter from eletric shock, do not
attempt to measure voltages higher than 750V AC or 1000V DC, although
readings may be obtained.
To measure frequency, connect the Meter as follows:
1. Insert the red test lead into the VΩHz terminal and the black test lead into the
COM terminal.
2. Set the rotary switch to %Hz. Frequency measurement mode is a default or
press %Hz button to switch to duty cyclemeasurement mode.
3. Connect the test leads across with the object being measured. The measured
value shows on the display.
Note:
When frequency measurement has been completed, disconnect the connection
between the testing leads and the circuit under test, and remove the testing leads
away from the input terminals of the Meter.
25
Figure 7
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UT207A/208A/209A Operating Manual
UT207A/208A/209A Operating Manual
F. DC/AC Current Measurement (see gure 8)
Warning
The operating temperature must be 0℃ ~40℃ when measuring current.
To measure current, do the following:
1. Set the rotary switch to 40A ,400A , or 1000A . DC mesaurement mode is
a default. Press SELECT to switch to AC measurement mode.
2. Hold the Meter tight, don’t release.
3. Press the lever to open the transformer jaw.
4. Center the conductor within the transformer jaw, then release the Meter slowly
until the trasnformer jaw is completely closed, Make sure the conductor to
be tested is placed at the center of the transformer jaw, otherwise it will casue
deviation. The Meter can only measure one conductor at a time, to meausre
more than one condutor at a time will cause deviation.
Note for DC measure:
● The Hall components are very senstive not only to the magnet but also to
heat and machines reaction force. Any shock will cause the changing in
reading in the short time.
● When the Meter does not display 0 before measurement, press ZERO to
27
Figure 8
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UT207A/208A/209A Operating Manual
UT207A/208A/209A Operating Manual
zeroing.
● Center the conductor within the transformer jaw, then release the Meter
slowly until the transformer jaw is completely closed. Make sure the
conductor to be tested is placed at the center of the transformer jaw,
otherwise it will cuase ±1.0 % deviation.
● When measuring DC current, if the reading is positive, then the current
direction is from up to down (see gure 8: the front case face up while the
bottom case face down).
Below testnig method can obtain more accurate DC current:
● Power off the tested conductor current,
● Press the lever to open the transformer jaw.
● When the reading is stabled at the minimal, press ZERO to display zero
● Power on the tested conductor current, read out the reading after the Meter
is stable.
Note for AC measure
● Center the conductor within the transformer jaw, then release the Meter
slowly until the transformer jaw is completely closed. Make sure the
conductor to be tested is placed at the center of the transformer jaw,
otherwise it will cuase ±1.0 % deviation.
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UT207A/208A/209A Operating Manual
● The meter will zero automatically.
● When the measuring current >1A, press Hz button to toggle between AC
current and frequency measurement mode. But the frequency readings
obtained from this range is only for reference.
● Change to AC:
UT207A/208A: Couple AC and average value response method. UT209A:
Couple AC and True RMS response method. Input sine wave to adjust. Non
sine wave must follow the below data to adjust:
Peak factor: 1.4~2.0, add 1.0% on the stated accuracy.
Peak factor: 2.0~2.5, add 2.5% on the stated accuracy
Peak factor: 2.5~3.0, add 4.0% on the stated accuracy.
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UT207A/208A/209A Operating Manual
G. Temperature Measurement (UT208A only, see gure 9)
To measure temperature measurement, connect the Meter as follows:
1. Insert the red temperature probe into the VΩHz terminal and the black
temperature probe into the COM terminal.
2. Set the rotary switch to ℃ measurement mode.
3. Place the temperature probe to the object being measured. The measured
value shows on the display.
Note
● When the Meter is at ℃ range, display “OL” to remind user to insert
temperature probe.
● The Meter automatically displays the room temperature when the
temperature probe is inserted but without any input.
● The 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.
● When the temperature measurement has been completed, disconnect
the connection between the temperature probe and the object under test,
and remove the temperature probe away from the input terminals of the
Meter.
31
Figure 9
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UT207A/208A/209A Operating Manual
UT207A/208A/209A Operating Manual
H. Capacitance measurement (UT208A only, see gure 10)
To avoid harms to you or damages to the Meter from eletric shock, do
not attempt to input voltages higher than 33V AC or 70V DC.
To measure capacitance, do the following:
1. Insert the red test lead into the VΩHz input terminal and black test lead to the
COM input terminal.
2. Set the rotary switch to Ω measurement mode. Press the select button
switch to measurement mode, To improve the measurement accuracy of
small value capacitors (less than 10nF), press zero with the test leads open to
subtract the residual capacitance of the Meter and leads.
3. It is recommended to use test clip to carry out measurement to reduce the
effect of internal distributed capacitor.
Note:
● Disconnect circuit power and discharge all high-voltage capacitors before
testing Capacitors.
● When capacitance measurement has been completed, disconnect the
connection between the testing leads and the circuit under test and remove
the test leads away from the input terminals of the Meter.
33 34
Figure 10
UT207A/208A/209A Operating Manual
UT207A/208A/209A Operating Manual
Specications
A.General Specications:
● Display: 3 3/4 digits LCD display, Maximum display 3999.
● Polarity: Auto
● Overloading: Display OL or –OL.
● Battery Deciency: Display .
● Sampling: 3 times per second.
● Measurement Deviation: The conductor being meaured is not placed in the
center of the jaw during AC/DC current measurement, it will cause extra ±1%
deviation based on the stated accuracy.
● Drop Test: 1 meter drop test passed.
● Max. Jaw Size: 55mm diameter.
● Projected Max. Current conductor size: 45mm diameter.
● Electro-Magnetic: When carrying out measurement near the electro-
magnetic, it may cause unstable or wrong reading.
● Power: 1 x 9V battery (6LF22 1604A)
● Dimensions: 285.3mm x 105mm x 44.5mm
● Weight: Approximate 533g (battery included)
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UT207A/208A/209A Operating Manual
B. Environmental Requirements
● The Meter is suitable for indoor use.
● Altitude: Operating: 2000m
Storage: 10000m
● Safety/ Compliances: IEC 61010 CATII 600V, CATIII 300V over voltage and
double insulation standard, pollution degree 2.
● Temperature and humidity:
Operating:
0℃~30℃(≤85%R.H)
30℃~40℃ (≤75%R.H)
40℃~50℃(≤45%R.H)
Storage:
-20℃~+60℃ (≤85%R.H)
UT207A/208A/209A Operating Manual
Accurate Specications
Accuracy: ±(a% reading + b digits), guarantee for 1 year.
Operating temperature: 23℃±5℃
Relative humidity: ≤80%R.H
Temperature coefcient: 0.1×(specied accuracy)/1℃
A. DC Voltage
Range Resolution Accuracy Overload protection
400mV 0.1mV ±(0.8%+3)
4V 0.001mV
40V 0.01V ±(0.8%+1) DC1000V/AC750V
400V 0.1V
1000V 1V ±(1.0%+3)
Remark: Input Impedance: 10MΩ.
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UT207A/208A/209A Operating Manual
B. AC Voltage
Range Resolution Accuracy Overload protection
400mV 0.1mV ±(1.2%+20)
4V 0.001mV
40V 0.01V ±(1.2%+3) DC1000V/AC750V
400V 0.1V
750V 1V ±(1.2%+5)
Remarks:
● Input Impedance: 10MΩ
● Frequency Response: 40Hz~400Hz
● Change to AC:
UT207A/208A: Couple AC and average value response method. UT209A:
Couple AC and True RMS response method. Input sine wave to adjust. Non
sine wave must follow the below data to adjust:
Peak factor: 1.4~2.0, add 1.0% on the stated accuracy
Peak factor: 2.0~2.5, add 2.5% on the stated accuracy
Peak factor: 2.5~3.0, add 4.0% on the stated accuracy.
UT207A/208A/209A Operating Manual
C. Resistance
Range Resolution Accuracy Overload protection
400Ω 0.1Ω ±(1.2%+2)
4kΩ 0.001KΩ
40kΩ 0.01KΩ ±(1.0%+2) DC1000V/AC750V
400kΩ 0.1KΩ
4MΩ 0.001MΩ ±(1.2%+2)
40MΩ 0.01MΩ ±(1.5%+2)
D. Continuity Test
Range Resolution Accuracy Overload Protection
0.1Ω Around ≤10Ω,the buzzer beeps. DC1000V
(Open circuit voltage approx 0.4V) /AC750V
Remarks:
● The buzzer beep when the resistance of a circuit under test is <10Ω.
● The buzzer may or may not beeps when the resistance of a circuit > 10Ω
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UT207A/208A/209A Operating Manual
E. Diode Test
Range Resolution Accuracy Overload Protection
0.5V~0.8V DC1000V
(Open circuit voltage approx. 1.5V) /AC750V
F. Frequency
Range Resolution Accuracy Overload Protection
400Hz 0.1Hz
4kHz 0.001kHz
40kHz 0.01kHz
400kHz 0.1kHz ±(0.1%+3) DC1000V/AC750V
4MHz 0.001MHz
40MHz 0.01MHz
Remarks:
Input Sensitivity as follows:
When ≤ 100kHz: ≥ 300mV rms
When > 100kHz: ≥ 600mV rms
Input amplitude a: 300mV ≤ a ≤ 10V rms
1mV
UT207A/208A/209A Operating Manual
G. Duty Cycle
Range Resolution Accuracy Overload Protection
0.1%~99.9% 0.1% For reference only DC1000V/AC750V
H. DC Current
Range Resolution Accuracy Overload protection
40A 0.01A ±(2.0%+5)
400A 0.1A ±(2.0%+3) 1000A DC/AC
1000A 1A ±(1.5%+5)
I. AC Current
Range Resolution Accuracy Frequency Response Overload protection
40A 0.01A ±(2.5%+8)
400A 0.1A ±(2.5%+5) 50Hz ~ 60Hz 1000A DC/AC
1000A 0.1A ±(2.0%+2)
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UT207A/208A/209A Operating Manual
J. Temperature (UT208A only)
Range Resolution Accuracy Overload Protection
-40℃~0℃: -(8%+5)
-40℃~1000℃ 1℃ 0℃~400℃: ±(2.5%+3) 1KΩ
400℃~1000℃: ±(3%+3)
K. Capacitance(UT208A only)
Range Resolution Accuracy Overload Protection
4nF 0.001nF For reference only
40nF 0.01nF
400nF 0.1nF ±(4.0%+3) DC1000V/AC750V
4μF 0.001μF
40μF 0.01μF
100mF 0.1μF ±(5.0%+10)
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UT207A/208A/209A Operating Manual
Maintenance
This section provides basic maintenance information including battery
replacement instruction.
Warning
Do not attempt to repair or service your Meter unless you are qualied
to do so and have the relevant calibration, performance test, and service
information.
To avoid electrical shock or damage to the Meter, do not get water inside the
case.
A. General Service
● Periodically wipe the case with a damp cloth and mild detergent. Do not use
abrasives or solvents.
● To clean the terminals with cotton bar with detergent, as dirt or moisture in
the terminals can affect readings.
● Turn the Meter power off when it is not in use.
● Take out the battery when it is not using for a long time.
● Do not use or store the Meter in a place of humidity, high temperature,
explosive, inammable and strong magnetic eld.
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UT207A/208A/209A Operating Manual
B. Replacing the Battery (see gure 11)
Warning
To avoid false readings, which could lead to possible electric shock or
personal injury, replace the battery as soon as the battery indicator “ ”
appears.
gure 11
UT207A/208A/209A Operating Manual
Make sure the transformer jaw and the tets leads are disconected from the circuit
being tested before opening the case bottom.
To replace the battery:
1. Turn the Meter off and remove all the connections from the input terminals
2. Turn the Meter’s front case down.
3. Remove the screw from the battery compartment, and separate the battery
compartment from the case bottom.
4. Take out the old battery and replace with a new 9V battery (6LF22, 1604A).
5. Rejoin the case bottom and the battery compartment, and reinstall the screw.
This operating manual is subject to change without notice
45
UT207A/208A/209A Operating Manual
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