INTRODUCTION

Click to  download: MEWOI5700 User Manual

Click to download:  MEWOI5700 Color Page

The MEWOI5700 Three Phase Digital Phase Volt-Ampere Meter is a well-developed full-automatic, multi-functional, digital, intelligent meter specifically designed for field testing,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.

The MEWOI5700 Three Phase 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 1500 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. 

The MEWOI5700 Three Phase Digital Phase Volt-Ampere Meter (Intelligent Three Phase Digital Phase Volt-Ampere Meter) applies 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.

TECHNICAL SPECIFICTION

1.Base Conditions and Working Conditions

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 SequenceTest

1A±0.2A

2mA~20A

----

Voltage Amplitude in Phase / Frequency/ Phase Sequence Test

100V±20V

10V~600V

----

Current Amplitude in Power / Power Factor Test

1A±0.1A

0.1A~400A

----

Voltage Amplitude in Power / Power Factor Test

200V±2V

30V~600V

----

External ElectricMagnetic Field

To be avoided

Measured Wire Position

Measured wire at approximately the geometric center of the clamp

2.Intrinsic Error and Performance Indicators under Base Conditions

Category

Measurement Range

Resolution

Intrinsic Error

Voltage

AC 0.0V~600V

0.01V

±(1.5%rdg+5dgt)

Current

AC 0mA~400A

1mA

±(1.5%rdg+5dgt)

Phase

0.0°~360°

0.1°

±3°

Active Power

0.0W~240kW

0.1W

±(3%rdg+5dgt)

Reactive Power

0.0VAR~240kVAR

0.1VAR

±(3%rdg+5dgt)

Apparent Power

0.0VA~240kVA

0.1VA

±(3%rdg+5dgt)

Frequency

45HZ~65HZ

0.01HZ

±(2%rdg+5dgt)

Power Factor

-1~+1

0.001

±0.03


APPLICAITON


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SELECTION GUIDE

Digital Phase Volt-AMP Meter

Click "Blue"Marked model number to view the Detailed Specification

ModelRangeResolutionClamp Quantity&SizeRS232Data Storage
MEWOI5000BMEWOI5000B-6_副本80.jpg
AC:0.00 V~600V (automatic shift),AC:0.0mA~20.0A (automatic shift),Phase:0~360°,Active Power:0.0W~12kWAC 0.01V,AC 0.1mA,Phase:0.1°2pc*φ7.5mm1500sets
MEWOI5200BMEWOI5200B_副本.jpgAC:0.00 V~600V (automatic shift),AC:0.0mA~20.0A (automatic shift),Phase:0~360°,Active Power:0.0W~12kWAC 0.01V,AC 0.1mA,Phase:0.1°2pc*φ40mm1500sets
MEWOI5300MEWOI5300官网主图_副本_副本1.jpgAC:0.00 V~600V (automatic shift),AC:0.0mA~20.0A (automatic shift),Phase:0~360°,Active Power:0.0W~12kWAC 0.01V,AC 0.1mA,Phase:0.1°3pc*φ7.5mm500sets
MEWOI5700MEWOI5700 官网主图_副本_副本.jpgAC:0.00 V~600V (automatic shift),AC:0.0A~400A (automatic shift),Phase:0~360°,Active Power:0.0W~240kWAC 0.01V,AC 0.1A,Phase:0.1°3pc*φ40mm500sets

General Specification

Function

Simultaneous measurement of three-phase 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, current vector sum, 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 LR6×6)

Consumption

About 80mA at most with enabled backlight, battery working continuously for about 10 hours
About 5mA with disabled backlight, battery working continuously for about 16 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:0mA~400A (automatic shift)
Phase:0~360°
Frequency:45.00Hz~65.00Hz
Active Power:0W~240kW
Reactive Power:0W~240kVAR
Apparent Power:0W~240kVA
Power Factor:-1~+1
Current Vector Sum:0A~1200A

Resolution

Voltage:AC 0.01V
Current:AC 1mA
Phase:0.1°
Frequency:0.01Hz
Active Power:0.1W
Reactive Power:0.1VAR
Apparent Power:0.1VA
Power Factor:0.001
Current Vector Sum:0.1A

Phase Sequence

Positive Phase Sequence:U1、U2、U3 or I1、I2、I3 cursors blink in order from left to right

Negative Phase Sequence:U1、U2、U3 or I1、I2、I3 cursors blink in order from right to left

SamplRate

About 2 times/second

Data Hold

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

Data Storage

500 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(yellow, green, red, black); RS232 Data Line: 1 pc; Disk: 1 pc; Battery: 6 pcs(LR6); User Manual: 1 pc ;Guarantee: 1 pc; Certification: 1 pc. Card

Main Unit: 1 pc; Meter Box: 1 piece; Current Clamp: 3 pcs; Test Line: 4 pcs(yellow, green, red, black); RS232 Data Line: 1 pc; Disk: 1 pc; Battery: 6 pcs(LR6); User Manual: 1 pc ;Guarantee: 1 pc; Certification: 1 pc. Card

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