Me440 Electrical Multi-Function with Low Cost Power Quality Analyzer

• Customization: Available
• After-sales Service: 3 Years
• Warranty: 3 Years
• Model NO.: ME440
• Display: 3.5 Inch TFT Screen Display
• Installation: Direct Connected
• Usage: Multi-Functional Energy Meter, Meter for Industry and Home Use, Standard Electric Energy Meter, Reactive Energy Meter, Maximum Demand Meter
• Electric Equipment: Three-phase Four-wire
• Theory: Electronic Meter
• Power Meter Connection: Terminal
• Measured Signal: Continuous Wave
• Type: Energy Meter
• Certification: RoHS, ISO, CE
• Customized: Customized
• Support Extra Sensor: 4PCS BNC Terminal 333mv CT Rogowski Coil
• Storage: 16GB Memory,USB Disk Download
• Power 1: 2*2900mAh Panasonic Lithium Battery
• Power 2: 5V DC Power Supply(Included Adaptor)
• Poles Description: 3pH4w 3pH3w 1pH2w (L-N); 1pH2w(L-L);1pH3w(L-L-N)
• Sampling Rate: 8K Samples Per Second
• Harmonic: 51th in The Mean Time
• Frequency: 45...65 Hz
• Rated Current (3 Level Selectable): 600A 3000A 6000A
• Voltage: 0.2% From 5 to 600V
• Power Factor: ±0.005
• Communication Protocol: Modbus TCP
• Current Input: BNC Connector
• BNC Connector: Banana Plug
• DC Power Supply: DC 5.5*2.1 Plug
• Transport Package: Carton
• Specification: 850g (with Accessory 2kgs)
• Trademark: MEATROL
• Origin: China
• HS Code: 9030331000
• Production Capacity: 50000PCS/Year

Product Description

 

Connectivity advantages
Model	ME440
Support Extra sensor	4pcs BNC terminal 333mV CT 4pcs BNC terminal Rogowski coil
Storage	16GB Memory,USB DISK download (save intervals 1mins default)
Power	2*2900mAh PANASONIC lithium battery(wroking time: approx 10 hours) Or 5V DC power supply(included adaptor)

Feature

Specification
Model	ME440
Product component type	Handheld;poly-phase;data logger;power analyzer
Poles description	3PH4W  3PH3W 1PH2W (L-N); 1PH2W(L-L);1PH3W(L-L-N)
Device application	Power analysis Data log
Input type	External Rogowski coil External CT(333mV only)
Display	3.5 inch TFT screen display
Sampling rate	8k samples per second
Harmonic	51th in the mean time
Mechanical characteristics
Weight	850g (with Accessory 2kgs)
Dimension	L*W*D:21.5*13*6CM

Power Meter Characteristics
The power meter measures currents and voltages and reports real-time RMS values for all 3-phases and neutral. In addition, the power meter calculates power factor, realpower, reactive power, and more.
The following sections list the metering characteristics of the power meter.

Real-Time Measuring
The following table lists the metering characteristics of the power meter for the real-time
measurement:

Characteristics	Description
Current	Per phase, neutral, and average of 3 phases
Voltage	L-L, L-N, and average of 3 phases,N-PE
Frequency	45...65 Hz
Active power	Total and per phase (signed)
Reactive power	Total and per phase (signed)
Apparent power	Total and per phase(signed)
Power factor (True)	Total and per phase 0.000 to 1 (signed)
Angle	Voltage angle,Current angle
Current unbalance	Per phase, most unbalanced of 3 phases
Voltage unbalance	most unbalanced of 3 phases

Minimum/Maximum Values
When any one-second real-time reading reaches its highest or lowest value, the power meter saves the minimum and maximum values in its nonvolatile memory.
From the power meter display, you can:
• view all min./max. values since the last reset and the reset date and time.
• reset min./max. values.
All running min./max. values are arithmetic minimum and maximum values. For example, the minimum phase A-N voltage is the lowest value in the range from 0 to 999.9GV that has occurred since last reset of the min./max. values.
The power meter provides time stamping for all minimum/maximum values.
The following table lists the minimum and maximum values stored in the power meter:
 

Characteristics	Description
Current	Per phase and average
Voltage	per phase and average
Active power	Per phase and total
Reactive power	Per phase and total
Apparent power	Per phase and total

Demand Readings
The power meter provides the following demand readings.
 

Characteristics	Description
Current	Per phase and average
Active, reactive, apparent power	Per phase and Total
Peak Demand Values
Current	Per phase and average
Active, reactive, apparent power	Per phase and Total

Demand Calculation Methods
Power demand is the energy accumulated during a specified period divided by the length of the period. Current demand is calculated using arithmetical integration of the current RMS values during a time period, divided by the length of the period. How the power meter performs this calculation depends on the selected method. To be compatible with electric utility billing practices, the power meter provides block interval power/current demand calculations.
For block interval demand calculations, you select a block of time (interval) that the power meter uses for the demand calculation and the mode the meter uses to handle he interval. 2 different modes are possible:
• Fixed block - Select an interval from 1 to 60 minutes (in 1 minute increments). The
 power meter calculates and updates the demand at the end of each interval.
• Sliding block - Select an interval from 1 to 60 minutes (in 1 minute increments). For demand intervals less than 15                 minutes, the value is updated every 15 seconds. For demand intervals of 15 minutes and greater, the demand value is updated every 60 seconds. The power meter displays the demand value for the last completed interval.


The following figures illustrate the 2 ways to calculate demand power using the block
method. For illustration purposes, the interval is set to 15 minutes.

Peak Demand
In nonvolatile memory, the power meter maintains a maximum operating demand value called peak demand. The peak is the highest value (absolute value) for each of these readings since the last reset.
You can reset peak demand values from the power meter display. You should reset peak demand after changes to basic power meter setup such as power system configuration.
Energy Readings
The power meter calculates and stores Per phase and total energy values for active,reactive, and apparent energy.
You can view energy values from the display. The resolution of the energy value automatically changes from kWh to MWh to GWh (kVAh to MVARh to GWh).
The energy values automatically resets to 0 when it reaches the limit of 999.9GWh,
999.9GVAh, or 999.9GVARh.
The following table lists the energy readings from the power meter:

Characteristics	Description
Energy values
Active energy	0 to 999.9GWh Auto reset to 0 in case of over limit
Reactive energy	0 to 999.9GVARh Auto reset to 0 in case of over limit
Apparent energy	0 to 999.9GVAh Auto reset to 0 in case of over limit

Power Quality Analysis Values
The power quality analysis values use the following abbreviations:

• Fundamental phase current rms: I1
• Fundamental phase voltage rms: V1
• RMS of up to three harmonics of phase current:
 Ix, Iy, Iz, x, y, z = 2, 3,…, N
• RMS of up to three harmonics of phase voltage:
 Vx, Vy, Vz, x, y, z = 2, 3,…, N
•Total harmonic distortion of the phase current

• Total harmonic distortion of the phase voltage

• Harmonic distortion of up to three harmonics on the phase
current

• Harmonic distortion of up to three harmonics on the phase
voltage:

THD provides a measure of the total distortion present in a waveform. THD is the ratio of harmonic content to the fundamental and provides a general indication of the quality of a waveform. THD is calculated for both voltage and current.
The following table lists the power quality values of the power meter:


 

Characteristics	Description
THD	Total,2,3,4,5,,,,,51(51 times) Per phase current (percentage value) X,Y,Z,A,B(5 times each time) Per phase current(rms value) Total,2,3,4,5,,,51(51 times)Per phase voltage(percentage value) X,Y,Z,A,B(5 times each time)Per phase voltage(rms value)

Data Record
The power meter records data to SD card, the following table lists data record of the power meter.

Record
Record interval	1s to 9999s(default 1min)
Record format	csv
Record capacity	16GB Memory
	Store about 2.5K Bytes data each time
	record 12 years (1min interval)
Record data	"Current Harmonic"file	ITHD(%),IHD2(%),IHD3(%),,,,,IHD51(%) (Each phase )
	"Voltage Harmonic"file	UTHD(%),UHD2(%),UHD3(%),,,,,UHD51(%)(Each phase)
	"DataSheet" file	Voltage(V);UTHD(%);Current(A);ITHD(%); Frequency(Hz);Power Factor; Current Demand(A); Current Peak Demand(A)&Date; (Each phase and Average)
		Active Power(W) ;Reactive Power(Var);Apparent Power(Va) Active Energy(Wh);Reactive Energy(Varh);Apparent Energy(Vah) (Each phase and Summary)
		Total Active Power Deamnd(W) Total Active Power Peak Deamnd(W)&Date Total Reactive Power Deamnd(Var) Total Reactive Power Peak Deamnd(Var)&Date Total Apparent Power Deamnd(Va) Total Apparent Power Peak Deamnd(Va)&Date

Other Characteristics
The following table lists other characteristics of the power meter:

Characteristics	Description
Reset
Minimum and maximum values	-
Peak demand values	-
Current demand calculation method	1 to 60 minutes
Power demand calculation method	1 to 60 minutes

Environmental conditions
Operating temperature		-25ºC to +55ºC
Storage temperature		-40ºC to +85ºC
Humidity rating		5 to 95% RH at 50ºC(non-condensing)
Pullution degree		2
Overvoltage category		III,for distribution systems up to 277/480VAC
Dielectric withstand		As per IEC61010-1, Doubled insulated front panel display
Altitude		3000m Max
IP degree of protection	IP20 conforming to IEC 60629
Colour	White
Contractual warranty	12months
EMC
Electrostatic discharge		Level IV(IEC61000-4-2)
Immunity to radiated fields		Level III (IEC61000-4-3)
Immunity to fast transients		Level IV (IEC61000-4-4)
Immunity to surge		Level IV (IEC61000-4-5)
Conducted immunity		Level III (IEC61000-4-6)
Immunity to power frequency magnetic fields		0.5mT (IEC61000-4-8)
Conducted and radiated emissions		Class B (EN55022 )
Standard compliance
EN 62052-11,EN61557-12,EN 62053-21,EN 62053-22,EN 62053-23,EN 50470-1,EN 50470-3, EN 61010-1,EN 61010-2,EN 61010-031

Specification

Measurement accuracy
Rated current (3 level selectable)	600A(0.5% from 6A to 720A)    3000A(0.5% from 10A to 3600A)   6000A(0.5% from 20A to 7200A)
Rogwoski coil connect setting	600A	MRC-36
	3000A	NRC-150 or Y-FCT-510
	6000A	NRC-200 or Y-FCT-800
CTs connect setting	Primary setting:	from 1A to 999999A
	Secondary setting:	from 0.001mV to 707mV
Voltage	0.2% from 5 to 600V
Power factor	±0.005
Active/Apparent Power	IEC62053-22 Class 0.5
Reactive power	IEC62053-21 Class 2
Frequency	0.01% from 45 to 65Hz
Active energy	IEC62053-22 Class 0.5s
Reactive energy	IEC62053-21 Class 2
Input-current characteristics
Primary current range	600A       0.5A to 720A 3kA        0.5A to 3600A 6kA        0.5A to 7200A
Measurement input range	1/2^25mV-707mV
Permissible overload	2V for 10s/hours
Power Supply
Power	2*2900mAh PANASONIC lithium battery Working time: 10 hours Charging time: 8 hours
	5V DC power supply(included adaptor)
power consumption
Screen Maximum Brightness	2000mW
Screen Minimum Brightness	1800mW
Wire diameter for terminals
Current input	BNC connector
Voltage input	Banana plug
DC power supply	DC 5.5*2.1 plug

 


MODBUS-TCP
 

Communication
Transmission mode	RJ45 port
Communication protocol	MODBUS TCP
Settings
IP address	Configurable (default 192.168.1.5)
Port No.	502

Port definition
 

Port number	Port name	Port function	Remarks
1	IA	A-phase current input	Current input
2	IB	B-phase current input
3	IC	C-phase current input
4	In	N-phase current input
5	UN	N-phase voltage input	Voltage input
6	UC	C-phase voltage input
7	UB	B-phase voltage input
8	UA	A-phase voltage input
9	UE	PE-N voltage input
10	Power	POWER 5V DC	Power 5-9V DC
11	USB port	Download log data	Plug out(in) USB DISK
12	RJ45 port	Mobus-TCP communication	Communication

Accessories

Accessories
Voltage wires	5pcs voltage clamp wires with banana plug (2 meters,1.5mm²)
Adaptor	85-265 AC to 5V DC adaptor(default Europe plug)
Remark	Rogowski coil not included