Model UT209 OPERATING MANUAL

Model UT209

OPERATING MANUAL

Model UT209: OPERATING MANUAL

Table of Contents

Title

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. DC Current Measurement

1

Page

21

23

25

27

14

17

17

19

9

10

11

13

5

6

3

4

Title

G. AC Current 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. DC Current

H. AC Current

Maintenance

A. General Service

B. Replacing the Battery

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Model UT209: OPERATING MANUAL

Page

39

40

40

41

36

37

38

38

41

42

30

32

33

33

34

35

35

Model UT209: 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 UT209

(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, Resistance,

Diodes, Continuity and etc.

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Model UT209: 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

3

4

1

2

English Operating Manual

Test Lead

Tool Box

9V Battery (NEDA1604A or 6LF22)

1 piece

1 pair

1 piece

1 piece

In the event you find any missing or damage, please contact your dealer immediately.

4

Model UT209: 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, 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 9.

5

Model UT209: 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 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.

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

6

Model UT209: 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 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.

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.

7

Model UT209: OPERATING MANUAL

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.

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Model UT209: OPERATING MANUAL

International Electrical Symbols

AC (Alternating Current)

DC (Direct Current)

AC or DC

Grounding

Double Insulated

Warning. Refer to the Operating Manual

Deficiency of Built-In Battery

Continuity Test

Diode

Danger of High Voltage

Conforms to Standards of European Union

9

The Meter Structure

(see figure 1)

1.

2.

3.

4.

5.

6.

7.

Hand Guards: to protect user’s hand from touching the dangerous area.

Trigger: press the lever to open the transformer jaws. When the pressure on the lever is released, the jaws will close.

Functional Buttons

Input Terminals

LCD Display

Rotary Switch

Transformer Jaw: designed to pick up the AC and DC current flowing through the conductor. It could transfer current to voltage. The tested conductor must vertically go through the Jaw center.

Model UT209: OPERATING MANUAL

Figure 1

10

Model UT209: OPERATING MANUAL

Functional Buttons

Below table indicated for information about the functional button operations.

Button Operation Performed

SELECT

PMAX/PMIN

HOLD

Press

SELECT

button to select the alternate functions including

V

, and

Press and hold for 2 seconds to enter that function internal calibration.

Press the button once to start recording of maximum peak value.

Press the button again to start recording of minimum peak value.

Press and hold for one second to exit PMAX/PMIN mode.

Press once to turn the display backlight on.

It will automatically off after around 15 seconds.

Press

HOLD

to enter the Hold mode in any mode, the Meter beeps.

Press

HOLD

again to exit the Hold mode to return to measurement mode, the Meter beeps.

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Model UT209: OPERATING MANUAL

Button Operation Performed

HOLD

Turn the rotary switch or press

SELECT

button can also exit

Hold mode.

Press

HOLD

button for 2 seconds when turning on the Meter to display full icon.

Hz

ZERO

When the Meter is at

V

, A and A , press the button to measure frequency. But the frequency readings obtained from these ranges are only for reference,

Press

ZERO

to display the present value as stored value and display zero. After that, all the measurement result displayed will automatically subtract the stored value.

Press

ZERO

again to display the stored value.

Press and hold

ZERO

to exit and back to normal operation.

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Model UT209: 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

Positions

V

Functional Buttons

SELECT MAX/MIN

HOLD

Hz

ZERO

N/A

N/A %Hz

44A

1000A

40A

1000A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

13

Display Symbols

(see figure 2)

Model UT209: OPERATING MANUAL

Figure 2

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Model UT209: OPERATING MANUAL

Number Symbol Meaning

1

2

5

6

3

4

7

8

9

10

11

Hz, kHz,

MHz

, k ,

M

PMAX

PMIN

ZERO

H

AUTO

RMS

AC

DC

Hz: Hertz. The unit of frequency.

KHz: Kilohertz. 1 x 10

3

or 1000 hertz.

MHz: Meghertz. 1 x 10

6

or1,000,000 hertz.

: Ohm. The unit of resistance.

k :Kilohm. 1×10

3 or 1000 ohms

M :Megohm. 1×10

6 or 1,000,000 ohms

Maximum peak reading displayed

Minimum peak reading displayed

Indicator for relative value zeroing

Data hold is active

The Meter is in the auto range mode in which the

Meter automatically selects the range with the best resolution.

True RMS indicator

Indicator for AC voltage or current

Indicates negative reading

Indicator for DC voltage

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Model UT209: OPERATING MANUAL

13

14

15

16

17

18

19

Number Symbol Meaning

12

A mV, V

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.

Sleep mode is on

Analogue bar graph ruler

Analogue Bar Graph

Test of diode

The continuity buzzer is on

Amperes (amps). The unit of current.

Volts. The unit of voltage.

mV: Millivolt. 1×10

-3 or 0.001 volts

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Model UT209: OPERATING MANUAL

Measurement Operation

A.

DC/AC Voltage Measurement

(see figure 3)

Warning

To avoid harms to you or damages to the Meter from eletric shock, do not attempt to measure voltages higher than 600V AC/DC, although readings may be obtained.

The DC Voltage ranges are:

400mV, 4V, 40V, 400V and 600V

The AC Voltage ranges are:

400mV, 4V, 40V, 400V and 600V

Red Black

Red Black

Figure 3

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Model UT209: OPERATING MANUAL

To measure DC/AC voltages, connect the Meter as follows:

1.

2.

3.

4.

Insert the red test lead into the

V Hz

terminal and black test lead into the

COM

terminal.

Set the rotary switch to

V .

DC mesaurement mode and auto ranging is a default.

Press

SELECT

to switch to AC measurement mode.

Press

Hz

button to measure frequency , but the frequency readings obtained from this range is only for reference.

Connect the test leads across with the object being measured.

The measured value shows on the display.

Note

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.

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Model UT209: OPERATING MANUAL

B.Measuring Resistance

(see figure 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.

The resistance ranges are:

400 , 4k , 40k , 400k and 40M

To measure resistance, connect the Meter as follows:

1.

2.

Insert the red test lead into the

V Hz

terminal and black test lead into the

COM

terminal.

Set the rotary switch to Resistance measurement is a default or press

SELECT

to switch to measurement mode.

19

Figure 4

Red Black

Model UT209: OPERATING MANUAL

3. Connect the test leads across with the object being measured.

The measured value shows on the display.

Note

To obtain a more precise reading, you could remove the objects being tested from the circuit when measuring.

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.

20

Model UT209: OPERATING MANUAL

C. Testing Diodes

(see figure 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 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.

Figure 5

Red Black

21

Model UT209: OPERATING MANUAL

To test the diode out of a circuit, connect the Meter as follows:

1.

2.

3.

Insert the red test lead into the

V Hz

terminal and black test lead into the

COM

terminal.

Set the rotary switch to mode.

Press

SELECT

to switch to measurement

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.

Note

To obtain a more precise reading, you could remove the objects being tested from the circuit when measuring.

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.

22

Model UT209: OPERATING MANUAL

D. Testing for Continuity

(see figure 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 measuring continuity.

To test for continuity, connect the Meter as follows:

1.

2.

3.

4.

5.

Insert the red test lead into the

V Hz

terminal and the black test lead into the

COM

terminal.

Set the rotary switch to and press

SELECT

button to select measurement mode.

The buzzer sounds if the resistance of a circuit under test is less than 30 .

The buzzer may or may not sound if the resistance of a circuit under test is between 30 to 100 .

The buzzer does not sound if the resistance of

23

Figure 6

Red Black

Model UT209: OPERATING MANUAL

a circuit under test is higher than 100

Note

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.

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Model UT209: OPERATING MANUAL

E. Frequency Measurement

(see figure 7)

Warning

To avoid harms to you or damages to the Meter from eletric shock, do not attempt to measure voltages higher than 600V AC/DC, although readings may be obtained.

The frequency ranges are:

4kHz, 40kHz, 400kHz, 4MHz and 40MHz.

To measure frequency, connect the Meter as follows

1.

2.

3.

Insert the red test lead into the

V Hz

terminal and the black test lead into the

COM

terminal.

Set the rotary switch to

Hz

.

Connect the test leads across with the object being measured.

The measured value shows on the display.

25

Figure 7

Red Black

Model UT209: OPERATING MANUAL

Note

The maximum amplitude must not exceed 30Vrms.

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.

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Model UT209: OPERATING MANUAL

F. DC Current Measurement

(see figure 8)

Warning

The operating temperature must be 0 ~40 when measuring current.

The measurement ranges of current are: 40A and

1000A .

To measure current, do the following:

1.

2.

3.

Set the rotary switch to

40A

or

1000A .

When the Meter is at

400A

range, the LCD displays 00.00. Press

ZERO

for zeroing if it does not display zero. It allows 10 bouncing digits after zeroing.

When the Meter is at

1000A

range, it automatically separate

400A

and

1000A

range. The initial stage is

400A

, the Meter displays 0.0. Press

ZERO

for zeroing if it does

27

Figure 8

Model UT209: OPERATING MANUAL

4.

5.

6.

not display zero. When the testing current is greater than

400A

, it is not necessary to zero.

Hold the Meter tight, don’t release. 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.

Press the lever to open the transformer jaw.

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.

Below testnig method can obtain more accurate DC current:

1.

2.

3.

4.

Power off the tested conductor current,

Press the lever to open the transformer jaw.

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 the reading is stabled at the minimal, press

ZERO

to display zero

28

Model UT209: OPERATING MANUAL

5. Power on the tested conductor current, read out the reading after the Meter is

stable.

6. This DC currrent measurment result is more accurate.

Note

The Meter adopts relative value zeroing.

Press

ZERO

to display the present value as stored value and display zero.

After that, all the measurement result displayed will automatically subtract

the stored value.

Press

ZERO

again to display the stored value.

Press and hold

ZERO

to exit and back to normal operation.

When measuring DC current, if the reading is positive, then the current direction is from up to down (see figure 9: the front case face up while the bottom case face down)

When current measurement has been completed, disconnect the connection between the conductor under test and the jaw, and remove the conductor away from the transformer jaw of the Meter.

29

Model UT209: OPERATING MANUAL

G. AC Current Measurement

(see figure 9)

Warning

The operating temperature must be 0 ~40 when measuring current.

The measurement ranges of current are: 40A and

1000A .

1.

2.

3.

4.

Set the rotary switch to 40A or 1000A .

Hold the Meter tight, don’t release. 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.

Press the lever to open the transformer jaw.

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

30

Figure 9

Model UT209: OPERATING MANUAL

5.

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.

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.

Note

When measuring AC current range, It may have unstable or wrong sensed readings, it will not affect measurement result.

Change to AC:

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.

When current measurement has been completed, disconnect the connection between the conductor under test and the jaw, and remove the conductor away from the transformer jaw of the Meter.

31

Model UT209: OPERATING MANUAL

Sleep Mode

To preserve battery life, the Meter automatically turns off if you do not turn the rotary switch or press any button for around 30 minutes.

The Meter beeps 3 times in one minute before entering Sleep Mode and one long beep just before entering Sleep Mode.

The Meter can be activated by turning the rotary switch or pressing the button except the button, details see the ‘

The Effectiveness of Functional Buttons”

on page

11-12

If the Meter is activated by pressing button, the Meter will keep the measurement value before entering Sleep Mode.

Press

PMAX/PMIN, ZERO

or

Hz

to turn on the Meter can disable the Sleep Mode feature.

32

Model UT209: OPERATING MANUAL

Specifications

A.General Specifications:

l

Maximum Voltage between any Terminals and grounding: Refer to different

range input protection voltage.

l

Display: 3 3/4 digits LCD display, Maximum display 4000.

l

Polarity: Auto l

Overloading: Display

OL

or

–OL

.

l

Battery Deficiency: Display .

l

Sampling: 3 times per second.

l

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.

l

Drop Test: 1 meter drop test passed.

l

Max. Jaw Size: 55mm diameter.

l

Projected Max. Current conductor size: 45mm diameter.

l

Electro-Magnetic: When carrying out measurement near the electro-magnetic,

it may cause unstable or wrong reading.

l

Power: 1 x 9V battery (6LF22 1604A)

33

Model UT209: OPERATING MANUAL

l

Battery Life: typically 150 hours (alkaline battery) l

Dimensions: 285.3mm x 105mm x 44.5mm

l

Weight: Approximate 533g (battery included)

B. Environmental Requirements

l

The Meter is suitable for indoor use.

l

Altitude: Operating: 2000m

Storage: 10000m l

Safety/ Compliances: IEC 61010 CAT.II 600V, CAT.III 300V

over voltage and double insulation standard, pollution degree 2.

l

Temperature and humidity:

Operating:

0 ~30 ( 80%R.H)

30 ~40 ( 75%R.H)

40 ~50 ( 45%R.H)

Storage:

-20 ~+60 ( 80%R.H)

34

Model UT209: OPERATING MANUAL

Accurate Specifications

Accuracy: (a% reading + b digits), guarantee for 1 year.

Operating temperature: 23 5

Relative humidity: 85%R.H

Temperature coefficient: 0.1×(specified accuracy)/1

A. DC Voltage

Range

400mV

4V

40V

400V

600V

Resolution

0.1mV

0.001V

0.01V

0.1V

1V

Accuracy

(0.8%+3)

(0.8%+1)

(1 %+3)

Remark: Input Impedance: 10M

Overload protection

600V DC/AC

35

Model UT209: OPERATING MANUAL

B. AC Voltage

Range

400mV

4V

40V

400V

600V

Resolution

0.1mV

0.001V

0.01V

0.1V

1V

Accuracy

(1.2%+20)

(1.2%+5)

Overload protection

600V DC/AC

(1.5%+5)

Remarks:

Input Impedance: 10M

Frequency Response:

400mV range: 50~100Hz

Other ranges: 40Hz~400Hz

Change to AC:

Couple AC and True RMS response method. Input sine wave to adjust. Non sine wave must follow the below data to adjust:

36

Model UT209: OPERATING MANUAL

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.

C. Resistance

Range

400

4k

40k

400k

4M

40M

Resolution

0.1

1

10

100

1k

10k

Accuracy

(1.2%+2)

(1%+2)

(1.2%+2)

(1.5%+2)

Overload protection

250VAC

37

Model UT209: OPERATING MANUAL

D. Diode Test

Range Resolution

1mV

Accuracy

0.5V~0.8V (Open circuit voltage approx. 3.0V)

Overload protection

250VAC

E. Continuity Test

Range Resolution Accuracy

0.1

l

The buzzer sounds if the resistance of a

circuit under test is less than 30

.

l

The buzzer may or may not sound if the

resistance of a circuit under test is between

30

to 100

.

l

The buzzer does not sound if the resistance

of a circuit under test is higher than 100

Open circuit voltage approx. –1.2V

38

Overload protection

250VAC

Model UT209: OPERATING MANUAL

F. Frequency

Range

4kHz

40kHz

400kHz

4MHz

40MHz

Resolution

0.001kHz

0.01kHz

0.1kHz

0.001MHz

0.01MHz

Accuracy

(0.1%+3)

Remarks: l

Input Sensitivity as follows:

When 100kHz: 300mV rms

When>100kHz: 600mV rms l

Input amplitude a: 300mV a 30V rms

Overload protection

250VAC

39

Model UT209: OPERATING MANUAL

G. DC Current

Range

40A

1000A

H. AC Current

Range

40A

1000A

Resolution

0.01A

1A

Resolution

0.01A

1A

Accuracy

(2%+40)

(2%+8)

Accuracy

(2%+40)

(2%+8)

Overload protection

250VAC

Overload protection

250VAC

40

Model UT209: 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 qualified 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,

41

inflammable and strong magnetic field.

B. Replacing the Battery

(see figure 10)

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.

Make sure the transformer jaw and the tets leads are disconected from the circuit being tested before opening the case bottom.

Model UT209: OPERATING MANUAL

Figure 10

42

Model UT209: OPERATING MANUAL

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.

43

Model UT209: OPERATING MANUAL

* END *

This operating manual is subject to change without notice.

44

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