Mastech MS2225A Manuel utilisateur

Digital Clamp Power Meter

Operation Manual

MS2225A

CAT III

CONTENTS CONTENTS

1. Safety information ..............................................01

1.1 Preparation ...............................................01

1.2 Use ...........................................................02

1.3 Mark ..........................................................03

1.4 Maintenance .............................................04

2. Description .........................................................04

2.1 Name of parts ...........................................06

2.2 Descriptions of switch, button and input jack

..................................................................07

2.3 LCD display ..............................................09

3. Specification .......................................................11

3.1 General .....................................................11

3.2 Technical specifications ............................12

3.2.1 Alternating current .........................12

3.2.2 Inrush current ................................12

3.2.3 DC voltage ....................................13

3.2.4 AC voltage .....................................13

3.2.5 Frequency .....................................14

3.2.6 Duty ratio .......................................15

3.2.7. Resistance ...................................16

3.2.8 Circuit continuity test .....................16

3.2.9. Capacitance .................................16

3.2.10 Diode test ....................................17

3.2.11 Single-phase active power ..........17

3.2.12 Single-phase apparent power .....18

3.2.13 Single-phase reactive power .......18

3.2.14 Power factor ................................19

3.2.15 Harmonics measurement ............19

4 Operation Guide .................................................19

4.1 Reading holding ........................................19

4.2 Manual range ............................................20

4.3 Switchover of frequency and duty ratio .....20

4.4 Selection of maximum/minimum value

measurement ...........................................21

4.5 Function switching ....................................21

4.6 Measurement of relative value .................22

4.7 LINK measurement ...................................22

4.8 REC function ............................................23

4.9 ▼function ..................................................23

4.10 ▲function ................................................24

4.11 INRUSH measurement ...........................24

4.12 Back-light and clamp lighting .................24

4.13 Automatic shutdown ...............................25

4.14. Measurement preparation ......................25

4.15 AC current measurement ........................26

4.16. Voltage measurement ............................28

4.17 Measuring frequency and duty ratio ........30

4.18 Resistance measurement .......................34

4.19 Diode test ................................................36

4.20 Circuit continuity test ...............................38

4.21 Capacitance measurement .....................40

4.22 Measurement of inrush current ...............42

4.23 NCV measurement ................................. 44

4.24 Active power measurement .....................46

4.25 Apparent power measurement ................48

4.26 Power factor measurement .....................50

4.27 Phase angle measurement .....................52

4.28 Harmonics measurement (voltage signal)

..............................................................53

4.29 Harmonics measurement (current signal)

...............................................................56

5 Maintenance .......................................................58

5.1 Battery replacement ..................................58

5.2 Replacing Test Leads.............................. 58

6 Attachments ........................................................59

CONTENTS 1. Safety information

Please pay special attention when using this meter,

improper use may result in electric shock or damage to the

meter. Please follow the common safety rules, and fully

comply with the safety precautions specified in the user

manual.

To make full use of the meter, and ensure safe operation,

please read carefully and follow the application methods in

this specification.

WARNING

This meter conforms to IEC 61010 Safety Requirements of

Electronic Measuring Instrument. It causes secondary pollution,

and the over-voltage standard is CAT IV 600 V and

CAT III 1000V. Please abide by the safe operation guidance to

ensure the safety use of the meter. Appropriate use and

protection of the meter will bring you satisfactory service

1.1 Preparation

1.1.1 The users must comply with the following safety

regulations when using the meter:

- General electric shock protection

- Prevent the misuse of the meter

1.1.2 After receiving the meter, check whether it is damaged in

the transportation.

1.1.3 Check and verify whether the meter is damaged after

being stored and shipped in poor condition.

1.1.4 The probe must be in good condition. Check whether the

insulation of the probe is broken and the metal wire of the

conductor is exposed before using.

1.1.5 The probe provided with the meter can ensure the safe

use, and it must be replaced with the same probe or the

probe of the same grade, if necessary.

1.2 Use

1.2.1 You must use the meter according to requirements of

correct functions and measuring range.

1.2.2 Do not exceed the indicated value of protection scope of

each measuring range during the measurement.

1.2.3 Do not touch the top of the probe when the meter is

connected for measuring the circuit.

1.2.4 During the measurement, if the measured voltage is

higher than 60V DC or 30 V AC (effective value), you

should keep your fingers behind the probe protector all

the time.

1.2.5 Do not measure the voltage when the AC voltage

between the measuring terminal and the ground is

greater than 750 V.

1.2.6 Select the highest range of the manual range if you don't

know the measured value in advance.

1.2.7 Remove the probe from the measured circuit before

rotating the change-over switch to change the measuring

function.

1.2.8 Do not perform the live line measurement for the

resistance, capacitance, diodes and circuit continuity.

1.2.9 Do not connect the meter to the voltage source during

the current, resistance, capacitance, diodes and circuit

continuity test.

1.2.10 Do not measure the capacitance before the capacitor is

fully discharged.

1.2.11 Do not use this meter near the explosive gas, steam or

dust.

1.2.12 In case of any abnormality or fault, please stop using

the meter.

1.2.13 Do not use this meter, unless the bottom case and the

battery cover are fully fastened in situ.

1.2.14 Do not store or use this meter in direct sunlight, high

temperature, or high humidity.

1.3 Mark

Note-Important safety information, refer to the

instruction manual.

Application around and removal from UNINSULATED

HAZARDOUS LIVE conductors is permitted.

Complies with European (EU) safety standards

Conforms to UL STD. 61010-1, 61010-2-032,

61010-2-033; Certified to CSA STD C22.2 NO.

61010-1, 61010-2-032,61010-2-033

Earth (ground) TERMINAL

CAT III

It is applicable to test and measuring circuits

connected to the distribution part of the

building's low-voltage MAINS installation.

Equipment protected throughout by double

insulation or reinforced insulation.

Alternating current

Both direct and alternating current

MEASUREMENT CATEGORY IV is applicable to

test and measuring circuits connected at the source

of the building’s low-voltage MAINS installation.

CAT IV

02 03

04 05

1.4 Maintenance

1.4.1 Do not try to open the bottom case of the meter for

 adjustment or repair. These operations can only be

 performed by the technicians who understand the meter

 and the shock hazard adequately.

1.4.2 Please remove the probe from the measured circuit

 before opening the bottom case or the battery cover of

 the meter.

1.4.3 In order to avoid the electric shock caused by the

 incorrect reading, when the meter displays ""

replace the battery immediately.

1.4.4 Use wet cloth and mild detergent to clean the meter, and

do not use the abrasive or solvent.

1.4.5 Turn off the power of meter when you don't use it, rotate

the range switch to the OFF gear.

1.4.6 Take off the battery to prevent the damage to the meter,

if you do not use it for a long time.

2. Description

-MS2225A single-phase clamp-type harmonic power meter is

hand-type intelligent power measuring meter, which combines

the digital multimeter and power measurement with Bluetooth

function. The range switch with one-handed performance is

convenient for the measurement, and this meter can perform

the functions of overload protection and low battery indicator.

- The meter can be used for the measurement of the

alternating current, alternating voltage, direct voltage,

frequency, duty ratio, resistance and capacitance and circuit

continuity, diode test, non-contact voltage detection, as well as

the measurement of the active power, reactive power,

apparent power, power factor, harmonics measurement and

phase angle measurement.

- The meter supports the auto range and manual range.

- The meter supports reading holding.

- The meter supports maximum measurement.

- The meter supports minimum measurement.

- The meter supports relative measurement.

- The meter supports Bluetooth.

- The meter supports data storage.

- The meter supports back-light and clamp lamp.

- The meter supports automatic shutdown.

- The meter supports low voltage indicator.

2.1 Name of parts

(1) Current clamp: for current measurement.

(2) Clamp lamp

(3) Faceplate

(4) Trigger

(5) Button for data storage and switch of auto and

manual range

(6) Button for maximum/minimum selection

(7) Button for function switch

(8) Button for reading holding/back-light

(9) Button for frequency and duty ratio measurement,

inrush current and up

(10) Button for Bluetooth function, relative

measurement and down

(11) Change-over switch

(12) NCV indicator light

(13) LCD display

(14) Input jack of resistance, capacitance, voltage,

frequency, diode and continuity.

(15) Jack of common terminal

2.2 Descriptions of switch, button and

input jack

FUNC button: for switching the measurement function.

B.L/HOLD button: the readings will be held by the short press,

and the back-light will be turned on by long press. The back-

light and clamp lamp will be turned on at the same time by

pressing the B.L/HOLD button in the current gear and in the

power gear on the current interface.

REC/RANGE button: short press for switching between auto

and manual range mode, and long press for data storage.

LINK/REL/▼ button

1) Long press for validating Bluetooth in all gears.

2) Short-press in the harmonic measurement interface at KW

and W gears to scroll down, and to switch between the 1st

06 07

08 09

harmonic and 20th harmonic. At the KW and W gears, short-

press the function key in the maximum/minimum value

measurement interface to scroll down, and switch and display

the maximum/minimum value.

3) Short press on alternating current, AC/DC voltage and

capacitance for relative value measurement mode.

Hz%/INRUSH/▲button

1) Short press on alternating current, alternating voltage and

HZ% gear for the switch among alternating current or

alternating voltage, frequency and duty ratio.

2) Short-press on the harmonic measurement interface at KW

and W gears to scroll up, and switch between the 1st harmonic

and 20th harmonic. At the KW and W gears, short-press the

function key in the maximum/minimum value measurement

interface to scroll up, and switch and display the

maximum/minimum value.

3) Long press on the alternating current gear for switching to

the measurement mode of inrush current.

MAX/MIN button: for the switch between the

maximum/minimum measurement.

OFF gear: for power off.

INPUT jack: input terminal of voltage, resistance, frequency,

duty ratio, capacitance, diode and circuit continuity.

COM jack: common terminal of voltage, resistance, frequency,

duty ratio, capacitance, diode and circuit continuity.

Change-over switch: for selection of functions and ranges.

2.3 LCD display

Alternating current/Direct current

Diode and continuity

Auto range mode

Status of maximum measurement

Status of minimum measurement

Status of relative measurement

Status of automatic shutdown

LOW BATTERY

Status of reading holding

HOLD

HZ Frequency measurement

Percentage (duty ratio)

Millivolt, volt (voltage)

Ampere (electric current)

Nano farad, microfarad and millifarad

Ohm, kilo-ohm and megohm (resistance)

Hertz, kilohertz and megahertz (frequency)

Non-contact voltage detection

Watt and kilowatt (active power)

Unit of apparent power

Reactive power

Phase angle

Peak value measurement

Total harmonic distortion

Total harmonic distortion F (relative to

fundamental wave)

Total harmonic distortion r (relative to

actual effective value)

Power factor

Phase

Status of inrush current measurement

Data recorder

Bluetooth function

Leading phase angle

Lagging phase angle

Hour (time unit)

Negative sign

W,KW

VA, KVA

Var, KVAr

PEAK

THD

H01F

H01r

COSФ

Phase

INR

REC

LEAD

LAG

3. Specification

Recalibrate the meter under the conditions of 18°C~28°C

and the relative humidity less than 75%, with the

calibration cycle of 1 year.

3.1 General

Auto range and manual range.

Full-scale overload protection.

Maximum allowable voltage between measured end

and the ground: 1000 V DC or 750 V AC.

Working height: less than 2,000 m.

Displayer: LCD.

Maximum displayed value: 5999 dgt.

Polar indication: self-indicating, "-" means negative

polarity.

Over-range display: '0L' or '-0L'.

Sampling time: around 3 times/s.

Unit display: display the functions and the unit of

electric quantity.

Time of automatic shutdown: 30 minutes.

Power supply: DC power supply 9 V.

Type of battery: NEDA 1604 or 6F22.

Under-voltage indication of battery: LCD display

symbol.

15 Temperature coefficient: less than 0.1×degree of

accuracy/°C.

10 11

16 Working temperature: 18°C~28°C.

Storage temperature: -10°C~50°C.

Dimension: 238×92×50 mm.

Weight: around 420 g (including battery).

3.2 Technical specifications

Environmental temperature: 23±5°C relative

humidity: ≤ 75%

3.2.1 Alternating current

Range Resolution Accuracy

±(2.0% rdg+ 8 dgt)

60A 0.01A

600A 0.1A

1000A 1A

- Maximum input current: 1000A AC

- Frequency range: 40~400 Hz

3.2.2 Inrush current

Range Resolution Accuracy

<60 A (for reference only)

±(5% rdg+ 60 dgt)

60A 0.01A

600A 0.1A

1000A 1A

Integral time: 100 ms; measurement range: 20~1000 A;

frequency range: 40~400 Hz

3.2.3 DC voltage

Range Resolution Accuracy

±(0.5% rdg+ 5 dgt)

-Input impedance: 10M

-Maximum input voltage: 750 V AC (effective value) or

1000 V DC.

60V

600V

1000V

0.001V

0.01V

0.1V

1V ±(0.8% rdg+ 4 dgt)

3.2.4 AC voltage

Range Resolution Accuracy

±(0.6% rdg+ 4 dgt)

- Input impedance: 10M

- Maximum input voltage: 750 V AC (effective value) or

1000 V DC.

- Frequency range: 40~400 Hz.

±(0.8% rdg+ 4 dgt)

60V

600V

750V

0.001V

0.01V

0.1V

Note:

Under the small voltage range, there might be reading on

the meter before the probe is connected to the measured

circuit.

The above phenomenon is normal because the meter has

high sensitivity and it has no influence on the actual

measurement result.

12 13

3.2.5 Frequency

3.2.5.1 Frequency measurement with clamp

(at A gear):

Range Resolution Accuracy

±(1.5% rdg+ 5 dgt)

99.99Hz

999.9Hz

0.01Hz

0.1Hz

- Measurement range: 10 Hz~1 kHz

- Range of input signal: ≥ 20A AC (the input current is

increased with the measured frequency)

- Maximal input current: AC 1000 A (effective value)

3.2.5.2 At V gear:

Range Resolution Accuracy

±(1.5% rdg+ 5 dgt)

99.99Hz

999.9Hz

9.999kHz

0.01Hz

0.1Hz

0.001kHz

- Measurement range: 10 Hz~10kHz

- Range of input voltage: ≥ 1 V AC (effective value) (the

input voltage is increased with the measured frequency)

- Input impedance: 10MΩ

- Maximum input voltage: 750 V AC (effective value)

3.2.5.3 At HZ/DUTY gear:

Range Resolution Accuracy

±(0.3% rdg+ 5 dgt)

9.999Hz

99.99Hz

999.9Hz

9.999kHz

99.99KHZ

999.9KHZ

9.999MHZ

±(0.3% rdg+ 5 dgt)

0.001Hz

0.01Hz

0.1Hz

0.001kHz

0.01kHZ

0.1KHZ

0.001MHZ

- Overload protection: 1000 V DC or 750 V AC (effective

value)

- Range of input voltage: ≥ 2 V (the input voltage is

increased with the increase of the measured frequency)

3.2.6 Duty ratio

Range Resolution Accuracy

±(3.0% + 3 )

0.1 - 99.9% 0.1%

- Frequency response: 10 ~ 1 kHz.

- Range of input current: ≥ 20 A AC (effective value)

-Maximal input current: AC 1000 A

3.2.6.1 At A gear (from the clamp):

3.2.6.2 At V gear:

- Frequency response: 10 ~ 10kHz.

- Range of input voltage: 1 V AC.

- Input impedance: 10MΩ

- Maximum input voltage: 750 V AC (effective value)

- Frequency response: 10 ~ 10MHz.

- Range of input voltage: ≥ 2V AC (effective value) (the

input voltage is increased with the measured frequency)

- Maximum input voltage: 250V AC (effective value)

3.2.6.3 At HZ/DUTY gear:

14 15

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