Mastech MS2203 User Manual

3 PHASE DIGITAL POWER

CLAMP METER

USERS MANUAL

CONTENTS

Safety Precautions - - - - - - - - - - - - - - - - - - - - - - - - - - - 1
Safety Information - - - - - - - - - - - - - - - - - - - - - - - - - - -

1

Safety Symbols - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

2

General Description - - - - - - - - - - - - - - - - - - - - - - - - - - 2

Feature - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

2

Meter Layout - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

4

Using The Selector - - - - - - - - - - - - - - - - - - - - - - - - - -

5

Using The Buttons

- - - - - - - - - - - - - - - - - - - - - - - - - - 6

Lcd Display

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9

Making Measurements

- - - - - - - - - - - - - - - - - - - - - - - 11

Measuring Ac Voltage - - - - - - - - - - - - - - - - - - - - - 11
Measuring Ac Current - - - - - - - - - - - - - - - - - - - - -

13

Measuring Single-Phase Circuit

- - - - - - - - - - - - - 15

Measuring Three -Phase Four-Wire Circuit - - - - - - 19
Measuring Three -Phase Three-Wire Circuit - - - - -

24

Saving Measurement

- - - - - - - - - - - - - - - - - - - - - - 24

Recalling Memory

- - - - - - - - - - - - - - - - - - - - - - - 24

RS232C Date Interface

- - - - - - - - - - - - - - - - - - - - 25

Input Voltage And Current

- - - - - - - - - - - - - - - - - 26

Backlight Display

- - - - - - - - - - - - - - - - - - - - - - - 26

Sketch Of Safety Holding - - - - - - - - - - - - - - - - - -

26

Curve Diagram Of Power

- - - - - - - - - - - - - - - - - - 27

Low Voltage Indication

- - - - - - - - - - - - - - - - - - - - 28

Replacing Batteries - - - - - - - - - - - - - - - - - - - - - - - - -

28

Specifications

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - 29

Accessories - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

32

Safety Precautions

· Read these operation instructions thoroughly and completely before

operating your meter. Pay particular attention to WARNING. The
instructions in these warnings must be followed.

· You must be careful when working with voltages above 30V AC. Keep

fingers behind the probe barriers while measuring.

· Never use the meter to measure voltages that might exceed the

maximum allowable input value of any function measurement mode.

· Always inspect your meter and test leads before every use. If any

abnormal conditions exist: broken test leads, cracked cases, LCD not
reading, etc, do not attempt to take any measurement.

· Using the meter with the equipped test leads is only conform to safety

requirements. If you need instead broken test leads, you must replaced
with the same as type and electric specification.

· Never touch a voltage source when the test leads are plugged into a

current jack.

· Do not expose the instrument to direct sunlight, extreme temperature

or moisture.

READ THE INSTRUCTIONS BEFORE

USING THE INSTRUMENT

WARNING

Safety Information

Three-phase digital power clamp meter has been designed according

to IEC1010-1 and IEC1010-2-032 concerning safety requirements for
electrical measuring instruments and handheld clamps with pollution
degree 2, overvoltage category ( 600V CATⅢ).

- 1 –

Safety Symbols

Important safety information, refer to the operating manual

Dangerous voltage may be present.

Earth ground

Double insulation (Protection classⅡ)

Battery

General Description

Three-phase digital power clamp meter is a handheld aptitude meter with
power measurement, it is incorporated current meter and power
measurement instrument. The meter is composed of three channels:
voltage, current, power and single chip Microcontroller. It has powerful
measuring and data processing software, and complete to measure,
calculate and display of the 8 parameters: Voltage, Current, Active Power,
Power Factor, Apparent Power, Reactive Power, Active Energy,
Frequency. It has Stable capability, easy operation. It is especially
suitable for measurement and overhaul of the electric po wer equipment
and the power-supply circuit on the spot. The structure of the instrument
is pincers, it is very small, very light and portable, make measurement
easy and fast. To the power measurement user, the digital power clamp
meter which is used completely in three-phase system is one of the best
instrument.

Feature

1. For power measurement of 3-phase 3-wire circuit, 3-phase 4-wire
circuit, single-phase circuit.

2. The instrument can complete the true RMS value measurement. If
there is nonsinusoidal AC current input signal, it can accurately
measure the active current.

- 2 -

3. Using autorange switch circuit and modulus transducer which has 8000
count and high resolution, the instrument has high accuracy and easy
operation.

4. Minimum current of Active Energy measurement is 0.5A, it can

measure expending energy per hour of general electrical equipment.
Measurement and display five parameters of power: Active Power,

Apparent Power, Power Factor, Reactive Power, Active Energy.

5. Double display two parameters on each menu and store 28 groups of
measurement parameter.

6. Measure five power parameters of each phase and total power value in
three-phase measurement mode respectively.

7. Multifunctional button control, there are double scales analogue bar
graph to display fluctuation of voltage and current.

8. With PC RS232C interface and special WINDOWS data graphics
software.

9. Display measurement time and select tested voltage signal be power
supply for the clamp at one time in Active Energy measurement mode,
so the instrument can measure for long .

10. The instrument is a portable clamp meter. It is very light and
convenient to carrying .

- 3 -

Meter Layout

( Figure 1 )

1. Clamp Jaws Ф50mm

2. HOLD Button
Holds the display reading and “ " symbol is shown in the LCD
display, press this button again, the meter return to normal
measurement mode.

3. Function Selector Rotary Switch
Rotate the selector to any measurement function.

4. Function Selector Buttons
To select the measurement object.

– 4 –

DC

6

min

kVA

kVAr

kWh

COM

SAVE

60204010 3080

MR

MEM

PF
MIN

MAX

RS232

CAL

AC

0 20

Time

FREQ

h

V3

V1

V2

MAX MIN

4

10040

Hz

5

7

HOLD

CLEAR

P

OFF

MS2203

MR

EX

-

DIGITAL POWER CLAMP

OFF

1

RS232

TIME

kWh

W

Ture RMS

AUTO RANGE

3

kW / PF

V / Hz

2

A

kVAr

kVA

W 3W

321

P

2

3

600kW

MAX
1000A

1

II

600V

CAT.I

MAX

8

600V

MAX

RS232

~

3

OPTICAL INTERFACE

5. Input terminal
V1: The input terminal for the first phase, using the yellow test lead

to connect.

V2: The input terminal for the second phase, using the green test

lead to connect.

V3: The input terminal for the third phase, using the red test lead to

connect.

COM: Common terminal, the earth input terminal for all measure-

-ment modes, using the black test lead to connect.

6. LCD Display
4 digits display, 7 segment LCD to display function mode, measured
value and symbols.

7. Trigger
Press the lever to open the transformer. When the lever is released,
the jaws will close again.

8. RS232C Data Interface

Your clamp meter can use a serial interface cable to communicate

with a computer. Refer to Figure 18 for complete instructions.

Using the Selector

Turn the meter on by rotating the selector to any function as following .

( Table 1. Introducing The Selector）

ITEM DESCRIPTION

POWER OFF. Turn the meter off OFF

EX- P EXTERNAL POWER SUPPLY. No use battery, select tested

voltage signal be power supply for Active Energy measure-

-ment for long at one time.

RECALL DATA. Recall saved data in the meter memory. MR
TOTAL POWER. For display total power value of three phase ∑W

– 5 –

( Table 1. Introducing The Selector )

ITEM DESCRIPTION

THIRD MEASUREMENT CHANNEL. For V3 input terminal

measurement

Φ3

SECOND MEASUREMENT CHANNEL. For V2 input terminal
measurement

Φ2

FIRST MEASUREMENT CHANNEL. For V1 input terminal
measurement

Φ1

Using the buttons

( Table 2. Function Button)

ITEM DESCRIPTION

1

kW / P F

Active Power, Power Factor Measurement Button.
Apparent Power, Reactive Power Measurement

Button.

2

3

kWh

TIME

Active Energy, Time Measurement Button

4 Power Summation Button

5

V / Hz

Voltage, Frequency Measurement Button

6

A

Current Measurement Button

7

RS232

Data Transmit Button

8

CLEAR

Clear Memory Button

9

Backlight Button

10

kVAr

kVA

MAX

Maximum Value Button/ Previous Record Button

11

MIN

Minimum Value Button/ Next Record Button

12

SAVE

Data Save Button

– 6 –

1.

kW / P F

Active Power, Power Factor Measurement Button

Press

kW / P F

button to measure Active Power and Power Factor in
measurement mode. Then the LCD shows Active Power reading in
the primary display and Power Factor reading in the secondary
display.

2.

kVAr

kVA

Apparent power, Reactive Power measurement button

Press

kVAr

kVA

button to measure Apparent Power and Reactive
Power in measurement mode. Then the LCD shows Apparent Power
reading in the primary display and Reactive Power reading in the
secondary display.

3．

kWh

TIME

Active Energy, Time Measurement Button

Press

kWh

TIME

button to measure Active Energy in measurement
mode. Then the LCD shows Active Energy reading in the primary
display and measurement time of the Active Energy in the secondary
display.

4． Power Summation Button

Press button to sum up the measured value of current one
phase in three phase measurement mode; then measure the second
phase and press the button to sum up again; press the

button for the third phase after you getting the measured
value of the third phase on the display. So the meter will calculate the
sum in this three phase system automatically, you will rotate the
selector to ∑W at one time, then the display shows the total power
value.

5． oltage Measurement Button V

Press button to measure voltage of the circuit and display
the measured value in the LCD display.

– 7 –

V / Hz

V / Hz

6.

A

Current Measurement Button

Press

A

button to measure current of the circuit and display

the measurement value in the LCD display.

7.

RS232

Data Transmit Button

Press

RS232

button to transmit measured data to a computer by

special interface cable, you can record current measured value and

print reports and data trend curve drawing.

Before press the

RS232

button to transmittal measured data, you
must connect RS232C interface cable to the clamp meter and a
computer, the communication function is working.

8.

CLEAR

Clear Memory Button

Press

CLEAR

button for three seconds to erase all measured data

in the meter memory in the measurement mode.

9. Backlight Button
Press button to turn the backlight on or off. When the back-

-light turned on over five seconds, it will turn off automatically.

10.

MAX

Maximum Value Measurement Button / Previous Record

Button

Press

MAX

button to measure maximum value in measurement
mode. The display shows current maximum value in the secondary
display.

When you turn the selector to MR, press

MAX

button to recall
previous memory location and display the data on the LCD. Once
pressing this button, the clamp meter recalls a memory location
previous current location.

11.

MIN

Minimum Value Measurement Button / Next Record Button

Press

MIN

button to measure minimum value in measurement
mode, the display shows current minimum value in the secondary
display.

– 8 –

When you turn the selector to MR, press

MIN

button to recall
next memory location and display the data on the LCD. Once
pressing this button, the clamp meter recalls a memory location next
current location.

12.

SAVE

Data Save Button

Press

SAVE

button to save current measured data to the meter in
measured mode. The meter can save 28 groups of measured data
into the meter at most.

Lcd Display

( Figure 2 )

1. Dangerous voltage symbol

2. Data holding symbol

3. First phase symbol

4. Second phase symbol

5. Third phase symbol

6. Three phase total power symbol

7. External power supply symbol

8. Battery symbol

- 9 -

9. Voltage unit (V), current unit (A), Apparent Power unit (kVA)
( For primary display )

10. Active power unit (kW)、Active Energy unit (kWh)

11. 4 digit display ( For primary display )

12. Frequency unit

13. Voltage unit (V), current unit (A), Apparent Power unit (kVA),
Reactive Power unit (kVAr) ( For secondary display )

14. Time unit : hour(h)、 minute(min)

15. Overflow symbol

16. 100 graduate scale

17. 40 graduate scale

18. Bar graph

19. 4 digit display ( For secondary display )

20. Frequency unit

21. Time symbol

22. Negative sign of scale

23. Number of memory location symbol

24. Recall data symbol

25. Save data symbol

26. Minimum value symbol

27. Power factor symbol

28. Maximum value symbol

29. RS232C interface symbol

30. Calibrate symbol

31. Negative symbol

32. AC symbol

33.

DC symbol

- 10 -

Making Measurements

Measuring AC Voltage

( Figure 3. Voltage Measurements)

1. Turn the selector to one of Φ1,Φ2,Φ3, refer to Table 3 to connect
the test leads to input terminals: Insert the black test lead into the
COM input terminal and one corresponding color test lead into the
corresponding input terminal.( Figure 3 )

（Table 3 Input Terminal Connections）

SELECTOR INPUT TERMINAL（+） INPUT TERMINAL（-） Phase

Φ1 V1 jack Yellow lead COM jack Black lead First phase
Φ2 V2 jack Green lead COM jack Black lead Second phase

Φ3 V3 jack Red lead COM jack Black lead Third phase

2. Connect test leads to the load, press

V / Hz

button, voltage
measured value is displayed in the primary display and current
frequency value of voltage is shown in the secondary display.

- 11 -

V

AC

MEM

302010

0

FREQ

FREQ

MEM

AC

1

20 40 60 80

0

40

V1

V3

V2

MIN

COM

SAVE

MAX

AUTO RANGE

Ture RMS

AC

kW / PF

V / Hz

100

Hz

Hz

V

MAX
600kW

1000A

MEM

1

-

OFF

P

2

1

OFF

HOLD

V

Hz

MAX

IICAT.I

600V

kWh
TIME

RS232

CLEAR

10 20 30 40

W

FREQ

3

0

MR

EX

kVA

kVAr

A

Yellow

Black

V1

V

AC

Circuit

1

3. In voltage measurement mode, press

MAX

button, the LCD
displays “MAX“ symbol, then maximum value(TRMS) is shown in
the secondary display. Press

MAX

button again, the “MAX”
symbol is disappeared, the secondary display return to current
frequency value .

4. Press

MIN

button, the LCD displays “MIN” symbol, then

minimum value(TRMS) is shown in the secondary display. Press

MIN

button again, the “MIN” symbol is disappeared, the

secondary display return to current frequency value.

5. For input voltage exceeds 600V, the display will show ”OL” symbol
and the bar graph is full.( Figure 4 )

( Figure 4. Voltage Exceeds 600V )

6. For input voltage exceeds 30V, the display will show “ ” for
safety.

7. There are two modes to show the bar graph in the LCD. You can
observe fluctuation range of measured voltage. The first mode is
0-20-40-60-80-100, the second is 0-10-20-30-40.

- 12 -

Black

Circuit

Hz

V

MEM

0

80604020

1

FRACEQ

MAX

V2

100

V1

SAVE

COM

MIN

V3

A

kVAr

kVA

EX

3

10

2

P

-

0

MEM

V / Hz

kW / PF

1000A
600kW

MAX

AC

Ture RMS

600V

CAT.III

MAX

MR

FREQ

W

AUTO RANGE

1

403020

CLEAR

RS232

TIME

kWh

Hz

V

HOLD

OFF

1

OFF

AC

V

V1

Yellow

Measuring AC Current

( Figure 5. Current Measurements)

1. Turn the selector to one of Φ1,Φ2,Φ3.

2. Press the trigg er to hook the clamp jaw around one conductor to
be measured. Press

A

button, the primary display reading is

current value(RMS) of the conductor. ( Figure 5)

3. To measure the maximum value of current, press

MAX

button,

the maximum value is shown in the secondary display. Press

MAX

button again to cancel maximum value measurement.

( Figure 6)

4. To measure the minimum value of current, press

MIN

button,

the minimum value is shown in the secondary display. Press

MIN

button again to cancel minimum value measurement.

5. For current exceeds 1000A(RMS), the display will show “OL”
symbol. ( Figure 7)

- 13 -

CLEAR

W

RS232

AC

MEM

3

0

2010

A

4030

AUTO RANGE

0

MEM

V / Hz

kW / PF

Ture RMS

AC

RS232

10 20 30

kVA
kVAr

A

2

3

kWh
TIME

RS232

1

OFF

3

V1

V2 V3

MINMAX

600kW

MR

-

EX

OFF

P

1000A

MAX

40

A

COM

SAVE

1

2

3

Earth wire

Tes t ed c ondu ct or

CAT.III

HOLD

MAX
600V

6. There are two modes to show the bar graph. You can observe the
fluctuation range of measured current. The first mode is
0-20-40-60-80-100, the second is 0-10-20-30-40.( Figure 5 and
Figure 6 )

( Figure 6. Maximum Value Of Current Measurements )

( Figure7. Current Exceeds 1000A )

- 14 -

1

80

AC

MEM

MAX

604020

0

3

W

100

A

A

100380604020

AC

MEM

0

MAX

A

A

SAVE

COM

MAX MIN

V3V2

V1

CLEAR

OFF

1

RS232

TIME

kWh

3

2

A

kVAr

kVA

Ture RMS

kW / PF

V / Hz

AUTO RANGE

600V

MAX MAX

1000A

HOLD

P

OFF

EX

-

MR

IICAT.I

600kW

Earth wire

Tested conductor

3

2

1

MAX

CAT.I

600V

W

60

AC

MEM

40200

A

10080

kVA
kVAr

kWh
TIME

RS232 CLEAR

A

0

V2 V3

MINMAX

COM

SAVE

A

2

3

1

OFF

3

20 40 60 80 100

V1

kW / PF

AUTO RANGE

Ture RMS

V / Hz

MEM

AC

RS232

3

MR

-

EX

OFF

P

HOLD

MAX
600kW

1000A

Earth wire

Tested conductor

3

2

II

Measuring Single-Phase Circuit

（

Figure 8. Single-phase Power Measurements）

1. Hook the clamp jaws around the conductor of the loading or the
circuit. The clamped conductor is one phase which you want to
test in the three-phase circuit.

2. Turn the selector to one of Φ1,Φ2,Φ3, and refer to Table 3 to
connect test leads into input terminals which is corresponding to
the position of the selector. ( Figure 8)

3. After right connection, you can measure five power parameters of
single-phase circuit (Active Power, Power Factor, Apparent Power,
Reactive Power, Active Energy):
( 1. ) Active Power(kW) and Power Factor (PF) (Figure 8 )

a. Press

kW / PF

button, the Active Power value is shown in
the primary display and the Power Factor value, “PF”
symbol are shown in the secondary display. When the
Power Factor value is negative, the loading is capacitive.

- 15 -

2

00

MEM

PF

20

AC

kW

40 60 80 100

kWh
TIME

kVA
kVAr

kW / PF

MIN

6040

V2

2

MAX

20

V1

PF

AC

MEM

00

V3

V / Hz

A

RS232

Black

COM

SAVE

10080

kW

CLEAR

Green

Tested conductor

1

OFF

OFF

2

EX

3

-

P

AUTO RANGE

W

MR

Ture RMS

MAX
600kW

1000A

HOLD

MAX

IICAT.I

600V

Earth wire

b. The maximum measurement range of Active Power is

600kW. For exceeding the maximum value, the “OL”
symbol will be shown in the display. If test voltage
exceeds 600V or the test current exceeds 1000A, the
“OL” symbol will be shown in the display too. And the bar
graph is full.(Figure 9) The minimum input voltage is 20V
and the minimum input current is 5A, if it less than the
minimum input voltage and minimum input current, the
Active Power value is “0.00kW”.

c. Press

MAX

button, the maximum value of Active

Power is shown in the secondary display.

d. Press

MIN

button, the minimum value of Active

Power is shown in the secondary display.。

e. The bar graph “0-20-40-60-80-100” is shown.

（Figure 9.Current Exceeds 1000A Or Voltage Exceeds 600V）

- 16 -

20

00

MEM

10040 60 80

PF

AC

2

kW

V3

V2

MAXV1MIN

Black

COM

SAVE

OFF

RS232

EX

3

MR

AUTO RANGE

W

Ture RMS

1

OFF

2

-

P

MAX
600kW

1000A

kVA
kVAr

kW / PF

PF

AC

MEM

00

V / Hz

kWh
TIME

6040220

A

HOLD

MAX

IICAT.I

600V

10080

kW

CLEAR

Green

Earth wire

Tested conductor

( 2. ) Apparent Power (kVA)and Reactive Power ( kVAr )

a. Press

kVAr

kVA

button, the Apparent Power value is
shown in the primary display, Reactive Power value and
the bar graph “0-20-40-60-80-100” are shown in the
secondary display.（Figure 10）

（

Figure 10.Apparent power measurements）

b. For input voltage less than 20V and input current less

than 5A, Apparent Power value is “0.00kVA”.

c. Press

MAX

button, the maximum value of Apparent

Power is shown in the secondary display.

d. Press

MIN

button, the minimum value of Apparent

Power is shown in the secondary display.

e. Reactive Power is not direct measuring parameter of

power, kVAr2=kVA2-kW2 is a formula to calculate Reactive
Power value. The value is calculated and shown
according to measured voltage, current and Active Power
in software.

- 17 -

3

AC

MEM

20006040 10080

kVAr

kVA

CLEAR

60

MIN

80 100

SAVE

TIME

kWh

A

V / Hz

00

MEM

AC

20

MAX

3

40

kW / PF

kVAr

kVA

RS232

V3

COM

V1

V2

kVAr

kVA

OFF

600V

CAT.III

MAX

HOLD

1000A
600kW

MAX

Ture RMS

MR

W

AUTO RANGE

P

-

3

EX

2

1

OFF

Black

Red

Earth wire

Tested conductor

(3.) Active Energy (kWh) and Time（hmin）

a. In Active Energy measurement mode, voltage signal mus t

be input into V1 and COM terminal of the clamp meter
(Figure 11), and the selector must be turned to Φ1.So
the Active Energy measurement function is valid,

( Figure11. Active Energy measurements)

b. Press

kWh
TIME

button, starting value of the Active Energy
is “0.000kWh” and is shown in the primary display at first,
Active Energy measured time and the bar graph
“0-20-40-60-80-100” is shown in the secondary display.
For the time is longer, the measured value of Active
Energy is larger. If you need read the Active Energy value
sometime, press the HOLD button, so the measured
value display and the display of the measured time are
locked, but the Active Energy measurement is
continuing and timing in the clamp meter. After reading

the display, press HOLD button again to exit date hold

- 18 -

3

AC

MEM

40 60

00

20 80 100

kWh

minh

RS232

40

MAX

20

AC

MEM

00

V / Hz

A

kWh

TIME

SAVE

10080

kWh

MIN

60

CLEAR

3

kW / PF

kVA

kVAr

V2

V1

COM

V3

hmin

Black

Yellow

OFF

1

2

EX

3

-

P

AUTO RANGE

W

MR

Ture RMS

MAX
600kW

1000A

HOLD

ICAT.I

OFF

MAX

I

600V

Earth wire

Tested conductor

and continue to measure, Active Energy value still add up.
Active energy measurement don’t stop until select other
measurement function.

c. The

MAX

button and

MIN

button is invalid in

Active Energy measurement mode.

d. The maximum value of Active Energy is “9999kWh”. If

Active Energy value exceeds the maximum value , the
display will show “OL” symbol.

e. Active energy measurement is viable in single-phase

circuit because you only measure current of one phase at
one time, so you can not measure three-phase Active
Energy. If you need measure Active Energy for long
during measurement, you are suggested that you can use
EX- P function, the meter will work no using the battery
but test voltage signal as power supply.

NOTE: When you turn the selector to EX- P to measure voltage or

power parameter, the input voltage of V1 jack must less than 250V,
otherwise the fuse will be blown.

Measuring Three –Phase Four-Wire Circuit

Three-phase power parameter means total Active Power, total
Reactive Power, total Apparent Power, total Power Factor. The
clamp meter can not measure three-phase Active Energy. The
measurement method of three-phase power parameter is that
you measure power parameter of each phase conductor
respectively at first, then calculate three-phase power
parameter in the meter. For a balance load, the measured data
is accurate, if power parameter fluctuates larger, then the error
of total power parameter increases more.

- 19 -

1. Refer to Table 3, connect yellow test lead, green test lead, red test
lead to every phase live wire of the three-phase circuit and V1 jack,
V2 jack, V3 jack of the meter respectively, connect black test lead
to zero conductor of the circuit and COM jack of the meter.

2. Turn the selector to Φ1 at first ( to first phase measurement ),
hook the clamp jaw around the first phase conductor of the tested
circuit, press

kW / P F

button to measure Active Power (kW) and
Power Factor (PF). the measured value are shown in the LCD then
press button to sum power parameter of this phase; press

kVAr

kVA

button again to measure Apparent Power and Reactive
Power, after the result is shown in the LCD, press button
to sum power parameter of this phase. So power parameter
measurement is completed in the first phase. If you need save the
result, you can press

SAVE

button to do it. ( Figure 12 )

( Figure 12.The First Phase Power Measurements )

- 20 -

AC

MEM

MEM

PF

1

604020

00

20 6040

00

kVAr

kVA

10080

10080

kVAr

kVA

TIME

kWh

20

MAX

1

V2

40 60 80 100

SAVE

COM

MIN

kW

V3

CLEAR

RS232

A

kW / PF

00

MEM

AC

PF

V1

V / Hz

AC

1

kW

600V

CAT.III

MAX

P

-

3

EX

2

OFF

HOLD

OFF

1

1000A
600kW

MAX

Ture RMS

MR

W

AUTO RANGE

GreenRed

Black

Yellow

Tested conductor

1

2

Earth wire

3

3. Turn the selector to Φ2(to the second phase measurement), hook
the clamp jaw around the second phase conductor of the tested
circuit, press

kW / P F

button and

kVAr

kVA

button to measure
power parameter respectively, when measured result is shown
every time, you must press button to sum in turn. The
operation is same as the first phase measurement. (Figure 13)

4. Turn the selector to Φ3( to the third ph ase measurement),hook the
clamp jaw around the third phase conductor of the tested circuit,
press

kW / P F

button and

kVAr

kVA

button to measure power
parameter respectively, when measured result is shown every time,
you must press button to sum in turn. The operation is
same as the first phase measurement. ( Figure 14)

( Figure 13.The Second Power Measurements )

- 21 -

2

2

AC

00

MEM

PF

MEM

00

AC

Earth wir

e

1

2

3

100

kVA

kVAr

80604020

10020 806040

kVAr

kVA

20

MAX

2

V2

A

kW / PF

00

MEM

AC

PF

V1

V / Hz

Black

TIME

kWh

40 60 80 100

SAVE

COM

MIN

kW

V3

CLEAR

RS232

YellowRed

Green

P

kW

-

3

EX

2

1000A
600kW

MAX

Ture RMS

MR

W

AUTO RANGE

Tested conductor

600V

CAT.III

MAX

OFF

HOLD

OFF

1

( Figure 14. The Third Phase Power Measurements )

5. After above every phase measurement, turn the selector to ∑W,
then the display shows total Active Power value and Power Factor
value of the three-phase load (Figure 15). After display for three

seconds, the display switches to show total Apparent Power value
and total Reactive Power value automatically(Figure 16). The total
Apparent Power value is in the primary display and the total
Reactive Power value is in the secondary display. The display
switches automatically every three seconds until you turn the
meter to other function.

- 22 -

1

MEACM

MEM

PF

3

20 40 60

00

40 60

0200

80

kVAr

kVA

100

80 100

AC

3

kW

Green

3

kWh
TIME

kVA
kVAr

kW / PF

V3

kW

MIN

COM

SAVE

100806040

V1

V2

MAX

PF

AC

MEM

0

20

0

A

V / Hz RS232 CLEAR

Red

Black

Yellow

Tested conductor

1

OFF

HOLD

MAX

IICAT.I

600V

OFF

AUTO RANGE

MAX
600kW

1000A

2

EX

Ture RMS

W

3

MR

-

P

Earth

3

2

( Figure15. Total Active Power Of Three-Phase )

( Figure16. Total Apparent Power Of Three-Phase )

- 23 -

MEM

AC

PF

3

W

3

21

20 6040

00

10080

kW

kW

PF

1 2 3

W

P

-

3

EX

2

kVAr

kVA

OFF

HOLD

TIME

kWh

OFF

1

20

MAX

V2

40 60 80 100

SAVE

COM

MIN

kW

V3

3

CLEAR

RS232

A

Ture RMS

kW / PF

00

MEM

AC

PF

V1

V / Hz

MR

W

AUTO RANGE

Black Red Green Yellow

Tested conductor

Earth wire

1

2

3

600V

CAT.III

MAX
1000A
600kW

MAX

20

2

AC

00

MEM

1

OFF

RS232

MIN

kWh
TIME

W

kVA

kVAr

10040 60 80

3W3

W

MR

EX

-

P

A

3

40

V2

MAX

20

1

kVA

kVAr

2

3

321

V / Hz

V1

AC

MEM

kW / PF

Ture RMS

PF

AUTO RANGE

00

Yellow

Black

Red

Green

HOLD

CLEAR

V3

COM

SAVE

1008060

OFF

kVA

kVAr

Earth wire

3

2

1

MA
600kW

100

Tested conductor

MAX

IICAT.I

600V

X
0A

Measuring Three-Phase Three-Wire Circuit

In three-phase three-wire circuit, the operation of the selector and
function button is same as the operation in three-phase four-wire
circuit except the connection of test leads.(Figure 17)

( Figure 17.Power Measurements Of Three-Phase Three-Wire)

Saving Measurement

In measurement mode, you can press

SAVE

button to save the
present display to a memory location. The meter can store 28 groups
of measurement date.
When the meter has saved 28 groups of date, you press

SAVE

button to save again, the display shows “FUL” symbol to

prompt full memory in the meter now. You must press

CLEAR

button to clear the memory and continue saving new date.

Recalling Memory

If something is saved in the meter memory, use following procedure
to display of a memory location:

1. Turn the selector to MR.

- 24 -

40

AC

1

20

MEM

00

PF

10060 80

kW

Tested conductor

Red

HOLD

SAVE

COM

kW

CLEAR

P

-

3

EX

2

OFF

OFF

1

MR

W

Ture RMS
AUTO RANGE

MAXV2MIN

V3

80

kVAr

kVA

TIME

kWh

20140 60

RS232

A

00

V1

MEM

AC

PF

kW / PF

V / Hz

100

Yellow

Green

3

1000A
600kW

MAX

600V

CAT.III

MAX

1

2

2. The display shows “MR” and “HOLD” symbol, location number
and date in current memory location.

3. Press

MAX

button and

MIN

button to cycle through

memory location.

RS232C Data Interface

Connect RS232C interface cable to the clamp meter as shown in
Figure 18, then rotate the interface cable deasil to lock it in the meter.
Connect the other plug of the interface cable to a serial port of a
computer. Then the meter can transmit measured data to computer
by the infrared photoelectricity RS232C interface in real-time mode. If
you want to take out the interface cable from the meter, first you must
rotate the cable widdershins to unlock it, then you can pull out it .
You will install the special data record software into the computer
according to README.TEXT file in SETUP disk. When the meter is
in measurement mode, press

RS232

button, you can record and
print the measured data of the meter in real time mode in the
WINDOWS. The software can record, plot, print data and curve.

( Figure 18. RS232C Interface Cable Connection )

- 25 -

R
S
2
3
2

-

C

I

N
T
E
R
F
A
C
E

O
P
T
IC
A
L

COMPUTER

OPTICAL INTERFACE

3

~

RS232

MA
600V

X

Input Voltage And Current

When the meter is in power measurement mode, if input voltage
exceeds 600V(TRMS)or current exceeds 1000A (TRMS), the meter
will display “OL” symbol, and bar graph is full. When input voltage
exceeds 30V, the “ ” symbol is shown in the display for safety.

Backlight Display

When press button, backlight of LCD display is on. After
lighting for 4 seconds the backlight is self-off.

Sketch Of Safety Holding

Use the wrist-webbing to prevent a accidentally drop as shown in

Figure 19.

( Figure 19 )

- 26 -

IEC1010-1 IEC1010-2-032

600V II POLL UTION DEGREE 2

WARNING

ENOP

CAT.I

PLEASE READ MANUAL FOR SAFETY.TO AVOID
ELECTRICA L SHOCK NEVER CONNECT THE T EST
LEADS TO THE INPUT JACKS WHICH ARE NO T

FORRELATED MEASURIN G AND REMOVE ALL

INPUTS BEFORE OPEN ING CASE.

BATTERIES : X 1.5 V SIZE AA 4

Curve Diagram Of Power ( PF=KW / KVA )

( Figure 20. PF=1)

( Figure 21 )

( Figure 22 )

- 27 -

X

PEAK VALUE

IMAX=14A

ACTIVE POWER

PEAK VALUE OF POWER

180°

EMAX=141V

+E
+I
+P

-E

-I

-P

90°

2000W

PEAK VALUE

1000W

POWER

2000W

360°

180°

PEAK VALUE

P

45°

-E

-I

-P

VMAX

+V
+I
+P

X

θ

45°

90°

θ

45°

225°

270°

ACTIVE POWER

500W

IMAX

KW=I R

2

360°

IMAX

+i

+V
+I
+P

V

MAX

P

θ

-E

-I

-P

θ

kW= I R

-i

180°

2

-V

X

+V

360°

Low Voltage Indication

The " " symbol is shown on the top right of the LCD display,
when the batteries is weak, you need replace new batteries or use
the EX- P function of the meter no w. Turn the selector to EX- P ,
the meter use the measured voltage signal as power supply to work.
But the meter only measure single-phase circuit and can not work in
three-phase circuit in this power source mode.

Replacing Batteries

WARNING
To avoid electrical shock , the instrument must be
power off and disconnect the lest leads or any input
signals before replacing the batteries. Never use the
instrument unless the back cover of the instrument is
fastened completely. Replace only with same type or
rating batteries.

( Figure 23. Open The Battery Cover )

- 28 -

PL
ELE

LE
FO

EASE READ MANUAL FOR S AFETY.TO AVOID
CTRICAL SHOCK NEVER CONNECT THE TEST
ADS TO THE INPUT JACKS WHI CH ARE NOT

RRELATED MEASURING AND RE MOVE ALL

INPUTS BEFOR E OPENING CASE.

BATT ERIES : 4 X 1.5 V S IZ E AA

WARNING

OPEN

600V CAT.III

IEC1010-1

POLLUTION DEGREE 2

IEC1010-2-032

PLEASE READ MANUAL FOR

ELECTRICAL SHOT

WARNING

OPEN

Coin

When the LCD displays the “ ” symbol, the batteries must be

replaced to maintain proper operation. Use the following procedure

to replace the batteries:

1. Disconnect test leads from any signals, turn the rotary function

switch to OFF, and remove the test leads from the input
terminals.

2． Open the battery cover and remove the batter y cover. Because

there is a locked design in the battery cover. Don’t force the

battery cover open, otherwise the cover is broken. Refer to

Figure 23 for opening it: Insert a coin into the groove of the
battery cover, press the coin down, then open the cover.

3． Remove batteries and replace with new batteries which is the

same type or rating.

4． Reinstall the battery cov er.

SPECIFICATIONS

AC VOLTAGE RMS

RANGE ACCURACY RESOLUTION INPUT IMPEDANCE

100V ±(1.2%+5) 0.1V

10 MΩ

300V ±(1.2%+5) 0.1V

(10Pf SHUNT)

600V ±(1.2%+5) 0.1V

Max. Overload Voltage：750V (RMS)

- 29 -

AC CURRENT RMS

RANGE ACCURACY RESOLUTION

40A ±(2%+5) 0.1A
100A ±(2%+5) 0.1A
400A ±(2%+5) 0.1A

1000A ±(2%+5) 0.1A

Max. Overload Current：1500A

ACTIVE POWER (W )

RANGE ACCURACY RESOLUTION

4kW ±(3%+5) 0.01kW
10kW ±(3%+5) 0.01kW
40kW ±(3%+5) 0.01kW

100kW ±(3%+5) 0.01kW
600kW ±(3%+5) 0.1kW

Minimum measurement current : 5A
Minimum measurement voltage : 20V

APPARENT POWER （VA）

RANGE ACCURACY RESOLUTION

4kVA ±(3%+5) 0.01kVA

10kVA ±(3%+5) 0.01kVA

40kVA ±(3%+5) 0.01kVA
100kVA ±(3%+5) 0.01kVA
600kVA ±(3%+5) 0.1kVA

Minimum measurement current : 5A
Minimum measurement voltage : 20V

- 30 -

POWER FACTOR （PF）

RANGE ACCURACY RESOLUTION

0.3～1 Capacitive ±(0.02+2) 0.001

0.3～1 Inductive ±(0.02+2) 0.001
Minimum measurement current : 5A

Minimum measurement voltage : 20V

REACTIVE POWER (Var)

2 2

=(VA) +W

2

RANGE ACCURACY RESOLUTION

4kVAr ±(4%+5) 0.01kVAr
10kVAr ±(4%+5) 0.01kVAr
40kVAr ±(4%+5) 0.01kVAr

100kVAr ±(4%+5) 0.01kVAr
600kVAr ±(4%+5) 0.1kVAr

Minimum input current : 5A

Minimum input voltage : 20V
Recording Voltage value、current value、Active Power value to calculate
Reactive Power value, The calculating accuracy is 0.01% of the range.

ACTIVE ENERGY （kWh）

RANGE ACCURACY RESOLUTION

1～9999kWh ±(3%+2) 0.001kWh

Minimum measurement current : 0.5A

Minimum measurement voltage : 10V

- 31 -

FREQUENCY ( Hz )

RANGE ACCURACY RESOLUTION

20Hz～1kHz 0.5% 0.1Hz

Minimum measurement voltage: 20V

* Accuracy：% of reading + number of digits

The specification given assume an operating temperature: 18

℃～28℃,humidity up to: 80% , the frequency of voltage and

current is 45Hz～65Hz
* Maximum common made voltage: 600V AC RMS
* Display : LCD 9999

* Range : autorange
* Overrange indication: Figure ”OL” on the display
* Reading Holding: Figure “ ” on the display
* Power supply : 4× 1.5V AA
* Power consume: 250mW
* Storage temperature: -20℃～70℃
* Operating temperature: 0℃～40℃
* Dimension size: 300mm×103mm×51mm
* Weight: approx. 500g ( include battery )

ACCESSORIES

Users manual 1
Battery 1.5V AA 4
Test Leads (MS3000) 1
Connect test clamp

(MS3102) 1

RS232C interface cable ( MS3403 ) 1
PC Data Record graph software

1

Carry Case

1

- 32 -

HYS004924