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产品名称:

ME435 Three-phase Handhold Power Meter

上市日期: 2018-08-21

ME435 Three-phase

Handhold Power Meter

Connectivity advantages

MODEL

ME435

Support Extra sensor

 BNC terminal 333mV CT 

BNC terminal Rogowski coil

Storage

1GB SD card(Max 6GB)

(save intervals 1mins default)

Power

4*AA battery(wroking time: approx 7 hours)

Or 9V DC power supply(included adaptor)

Feature

Specification

Model

ME435

Product component type

Handhold three phase rogowski  power meter

Poles description

3PH4W  3PH3W

1PH2W (L-N); 1PH2W(L-L);1PH3W(L-L-N)

Device application

Power analysis

Energy meter

Input type

External CT(333mV only)

And

External Rogowski coil

Display

3.5 inch TFT screen display

Sampling rate

8k samples per second

Harmonic

52th Max

Display characteristics

Feature

3.5 Inch TFT screen display 320*480

Mechanical characteristics

Weight

350g

Dimension

L*W*D:21.5*10*3.5CM

Display

Maximum value measured

Parameter

Range

Resolution

Voltage

0.001V

999.9V

999.9kV

999.9MV

0.1

Current

999.9A

999.9kA

0.1

Power

999.9kW

999.9MW

0.1

Power factor

0.999

0.001

THD

99.9%

0.1%

Energy

999.9WH

999.9.KWH

999.9MWH

999.9GWH

0.1KWH

0.01MKWH

Instantaneous rms Values

Voltage

UUTH2UTH3UTH4(Per Phase,AVG

Current

I,ITHD2ITHD3ITHD4ITHD5 ,ITHD6 (Per Phase,AVG

Power

P,FQ,S,PF(Per Phase,SUM)

Energy

EP,EFQ,ES,Freq(Per Phase,SUM

over 999.9GWh,value reset

UTHD(%)

UTHD,THD2,THD3,THD4(Per Phase,AVG

ITHD(%)

ITHD,THD2,THD3,THD4(Per Phase,AVG

Line voltage

Uab,Ubc,Uac(only enable in 3PH4W)

Voltage angle

Uab,Ubc,Uac

Current angle

Iab,Ibc,Iac

DPF

DPFa,DPFb,DPFc,AVG

Update rate

Data acquisition rate

400ms

Display update rate

0.5s

Calibration

Current

Per phase,all

Voltage

Per phase,all

Power factor

Per phase,all

Energy

Reset to 0”  EP,EQ,ES all phase 

Record

Record

Record interval

1s to 9999sdefault 1min

Record format

csv

Record capacity

Micro SD card 1GBdefault

Store about 1K Bytes data each time

record  2 years 1min & 1GB

Record data

Date&time,

Voltage(V),UTHD(%),Current(A),ITHD (%),

ITHD2(%),ITHD3(%), ITHD4(%), ITHD5(%), ITHD6(%), ITHD2(A), ITHD3(A), ITHD4(A), ITHD5(A), ITHD6(A)

Frequency(Hz), PF(power factor),

Active Power(W),Reactive Power(Var),Apparent Power(Va),

Active Energy(Wh),Reactive Energy(Varh),Apparent Energy(Vah)


Feature

Specification


Model

ME435


Product component type

Handhold  poly-phase  power meter


Poles description

3PH4W  3PH3W

1PH2W (L-N); 1PH2W(L-L);1PH3W(L-L-N)


Device application

Power analysis

Energy meter


Input type

External Rogowski coil

External CT(333mV only)


Display

3.5 inch TFT screen display


Sampling rate

8k samples per second


Harmonic

52th Max


Mechanical characteristics

Weight

350g

Dimension

L*W*D:21.5*10*3.5CM

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

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)

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.

ME435 Three-phase  Handhold Power Meter 


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

Per phase current

Per phase voltage

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 9999sdefault 1min

Record format

csv

Record capacity

Micro SD card 1GBdefault

Store about 1K Bytes data each time

record  2 years 1min & 1GB

Record data

Date&time,

Voltage(V),UTHD(%),Current(A),ITHD (%),

ITHD2(%),ITHD3(%), ITHD4(%), ITHD5(%), ITHD6(%), ITHD2(A), ITHD3(A), ITHD4(A), ITHD5(A), ITHD6(A)

Frequency(Hz), PF(power factor),

Active Power(W),Reactive Power(Var),Apparent Power(Va),

Active Energy(Wh),Reactive Energy(Varh),Apparent Energy(Vah)

 


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Company

ROGOWSKI TECHNOLOGY (SHANGHAI) CO., LTD. is located in the International Incubator Center in Caohejing High-tech park of Shanghai, specializing in the production and development of current sensor and its related meter. Over  years, the company has cooperated with many domestic leading research institutions,international university, and has successfully developed Rogowski coil with self-sufficiency just property rights. .

Certifications

2018 MEATROL CATALOGUE
MEATROL Presentation
MEATROL INTEGRATOR CE-LVD certificate
MEATROL INTEGRATOR CE-EMC certificate
MEATROL Rogowski Coil CE-EMC certificate

Power Analyzers
ROGOWSKI COIL   
Power Meter
                 Power Meter
Current transducer
 

How to reach us

ROGOWSKI TECHNOLOGY (SHANGHAI) CO., LTD.
Unit 55,No.2155, Lianhua Road 
Minhang District, Shanghai,China(201109)
  
 
 

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