MEWOI5200B Intelligent Double Clamp Digital Phase Volt-Ampere Meter is a well-developed full-automatic, multi-functional, digital, intelligent meter specifically designed for field testing, which is a overall upgrade product based on mechanical knob phase volt-ampere meter, can simplify operation and reduce the possibility of misoperation, featuring high accuracy, high stability, low power consumption, easiness to use and so on. It can directly measure AC voltage and AC current without opening the measured circuit, phases between three voltages, three currents and phase between the voltage and current; in addition, the power factor and power of the circuit can be indirectly measured, it can also be used to distinguish three-phase sequence, transformer wiring group, inductive and capacitive circuits, test second circuit and bus differential protection systems, read the phase relationship between CTs of the differential protection, check the meter wiring right, repair lines and equipment, etc. Apply to electric power, petroleum chemical industry, metallurgy, railway, and meteorology, industrial and mining enterprises, scientific research institutions, measurement sector and so on. Especially for the electricity billing system and relay protection system, and electricity measurement, electricity check,  power inspection for power marketing department. Assembling, relay protection, differential detection, start experiment, substation overhaul, or power practical training, skills match for biotech department.

     MEWOI5200B Intelligent Double Clamp Digital Phase Volt-Ampere Meter has well designed shell mould made of newest material, attach with shakeproof, skidproof, high insulation sheath, has a 240dots×160dots LCD screen, all the test data display on the screen simultaneously, vector diagram indication, and looks exquisite and comfortable. Meter equipped with USB-RS232 interface, can store 500 sets of data, through the system software upload stored data to the computer, implementing online real-time monitoring and historical inquires, dynamic display. Can read, save, report, print history data, etc. Its big round clamps are applicable to thick wire detection.

Function

Simultaneous measurement of two AC voltage, current, phase between voltage, phase between current, phase between voltage and current, frequency, phase sequence, active power, reactive power, apparent power, power factor, distinguish transformer wiring group, inductive and capacitive circuits, test second circuit and bus differential protection systems, read the phase relationship between CTs of the differential protection, check the meter wiring right, repair lines and equipment, etc.

Power

DC9V alkaline batteries(1.5V AA×6)

Consumption

About 70mA at most with enabled backlight, battery working continuously for about 14 hours

About 40mA with disabled backlight, battery working continuously for about 20 hours

Display Mode

LCD display, 240dots×160dots

Meter Size

Length, Width, Height: 196mm×92mm×54mm

Clamp Size

round current clamp:35mm×40mm

Measurement Range

(automatic shift)

AC Voltage: 0.00 V～600V (automatic shift)

AC Current: 0.0mA～20.0A (automatic shift)

Phase: 0～360°

Frequency: 45.00Hz～65.00Hz

Active Power: 0.0W～12kW

Reactive Power: 0.0W～12kVAR

Apparent Power: 0.0W～12kVA

Power Factor: -1～+1

Resolution

Voltage: AC 0.01V

Current: AC 0.1mA

Phase: 0.1°

Frequency: 0.01Hz

Active Power: 0.1W

Reactive Power: 0.1VAR

Apparent Power: 0.1VA

Power Factor: 0.001

Sample Rate

About 2 times/second

Data Hold

Press HOLD key to keep data, "DH" symbol appears

Data Storage

1500 sets

RS232 Interface

USB-RS232 interface, download data to computer for analysis and management

Automatic Shutdown

Automatic shutdown about 15 minutes later after launching to reduce battery consumption

Backlighting

Suitable for dark place and nightly use

Voltage Detection

Low battery symbol "      " appears to remind the replacement of battery when the battery voltage drops below 7.2V.

Weight

Main Unit about 550g(with battery), acuminate current clamp about 170g×3, round current clamp about 185g×3, test line about 250g

Test Line Length

1.5m

Current Clamp Length

2m×φ5mm

Working Temperature and Humidity

-10℃～40℃; below 80%Rh

Storage Temperature and Humidity

-10℃～60℃; below 70%Rh

Input Impedence

Testing voltage the input impendence is 2MΩ

Withstand Voltage

Withstand 1000V/50Hz sine wave AC voltage for 1 minute between the meter lines and shell; Withstand 500V/50Hz AC voltage sine wave for 1 minute between the two voltage inputs

Insulation

≥100MΩ between meter lines and shell or between the two voltage inputs

Structure

Double insulation, with insulation vibration-proof sheath

Safety Specifications

IEC61010-1 CAT Ⅲ 600V, IEC61010-031, IEC61326, 2 class of pollution

Accessories

Main Unit: 1 pc; Meter Box: 1 piece; Current Clamp: 3 pcs; Test Line: 4 pcs(2 yellow, 2 black); RS232 Data Line: 1 pc; Disk: 1 pc; Battery: 6 pcs(alkaline drybattery: 1.5V AA); User Manual: 1 pc ; Guarantee Card: 1 pc; Certification: 1 pc.

Influence Quantity

Base Condition

Working Condition

Remark

Ambient Temperature

23℃±1℃

-10℃～40℃

----

Ambient Humidity

40%～60%

＜80%

----

Signal Waveform

sine wave

sine wave

β=0.01

Signal Frequency

50HZ±1HZ

45HZ～65HZ

----

Meter Working Volt

9V±0.1V

9V±1.5V

----

Current Amplitude in Phase/Frequency/Phase Sequence Test

1A±0.2A

2mA～20A

----

Voltage Amplitude in Phase / Frequency/ Phase SequenceTest

100V±20V

10V～600V

----

Current Amplitude in Power / Power Factor Test

1A±0.2A

20mA～20A

----

Voltage Amplitude in Power / Power Factor Test

100V±20V

10V～600V

----

External Electric Magnetic Field

To be avoided

Measured Wire Position

Category

Measurement Range

Resolution

Intrinsic Error

Voltage

AC 0.0V～600V

0.01V

±(1.5%rdg+3dgt)

Current

AC 0.0mA～20.0A

0.1mA

±(1.5%rdg+3dgt)

Phase

0.0°～360°

0.1°

±1°

Active Power

0.0W～12kW

0.1W

±(3%rdg+3dgt)

Reactive Power

0.0VAR～12kVAR

0.1VAR

±(3%rdg+3dgt)

Apparent Power

0.0VA～12kVA

0.1VA

±(3%rdg+3dgt)

Frequency

45HZ～65HZ

0.01HZ

±(2%rdg+3dgt)

Power Factor

-1～+1

0.001

±0.03