Mastech MS2203 Manuale utente

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 power 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 –

min

kVA

kVAr

kWh

COM

SAVE

60204010 30 80

MEM

MIN

MAX

RS232

CAL

020

Time

FREQ

V1 V2

MAX MIN

10040

HOLD

CLEAR

OFF

MS2203

EX-

DIGI TAL POWER CLAMP

OFF

RS232

TIME

kWh

Ture RMS

AUTO RANGE

kW / PF

V / Hz

kVAr

kVA

3W 321 P

600kW

MAX

1000A

600V

CAT.I

MAX

600V

MAX

RS232

3OPTICALINTERFACE

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 offOFF

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 / PF Active Power, Power Factor Measurement Button.

Apparent Power, Reactive Power Measurement

Button.

3 kWh

TIME Active Energy, Time Measurement Button

4 Power Summation Button

5 V / Hz Voltage, Frequency Measurement Button

6 ACurrent Measurement Button

7 RS232 Data Transmit Button

8 CLEAR Clear Memory Button

9 Backlight Button

kVAr

kVA

MAX

Maximum Value Button/ Previous Record Button

MIN

Minimum Value Button/ Next Record Button

12 SAVE Data Save Button

– 6 –

1. kW / PF Active Power, Power Factor Measurement Button

Press kW / PF 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 ButtonV

Press button to measure voltage of the circuit and display

the measured value in the LCD display.

– 7 –

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 –

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