Eastron SDM630 Modbus MCT 1/5A Three Phase Multifunction Energy Meter

Name: Eastron SDM630 Modbus MCT 1/5A Three Phase Multifunction Energy Meter
Brand: Eastron
Price: 114 GBP
Availability: InStock

Eastron

Eastron SDM630 Modbus MCT 1/5A Three Phase Multifunction Energy Meter

Eastron

£95.00

£114.00 inc. VAT

Description
Specification
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Product Description

Eastron's SDM630 MCT V2 Three Phase Multi-function Energy Meter will measure and display all the fundamental electrical parameters for a cost-effective price, making it the ideal choice for sub-billing and energy management. The unit measures both single and three-phase supplies and is either 1A or 5A current transformer operated. A separate auxiliary (AC or DC) can be used to power the device.

Product Features:

Multi-parameter measurement
Single Tariff 1A/5A
CT operated
RS485 Port
MODBUS RTUBi-directional energy

Specification

Measuring Parameters

^{The unit can monitor and display the following parameters of a Single Phase Two Wire (1P2W), Three Phase Three Wire (3P3W) or Three Phase Four Wire (3P4W) system.}

Voltage and Current

Phase to Neutral Voltages 100-289V AC (not for 3P3W supplies).
Phase to Phase Voltages 173-500V AC (3 Phase supplies only).
Percentage Total Voltage Harmonic Distortion (U%THD) for each Phase to N ( not for 3P3W supplies).
Percentage Voltage Total Harmonic Distortion (U%THD) between Phases (3 Phase supplies only).
Percentage CurrentTotal Harmonic Distortion (I%THD)for each Phase.

Power factor and Frequency and Max. Demand

Frequency inHz
Instantaneous power:
Power 0-3600MW
Reactive Power 0-3600 MVAr
Volt-Amps 0-3600MVA
Maximum Demand Power since last reset
Power factor
Maximum neutral Demand Current, since the last reset (forThree Phase supplies only)

Energy Measurements

Imported/Exported active energy	0 to 9999999.9 kWh
Imported/Exported reactive energy	0 to 9999999.9 kVArh
Total active energy	0 to 9999999.9 kWh
Total reactive energy	0 to 9999999.9 kVArh

Measured Inputs

^{Voltage inputs through 4-way fixed connector with 25mm² stranded wire capacity. Single Phase Two Wire(1P2W), Three Phase Three Wire (3P3W) or Three Phase Four Wire (3P4W) unbalanced. Line frequency measured from L1 Voltage or L3 Voltage.}

Nominal Voltage Input	100-289V AC (Ph+N) or 173-500V AC (Ph+Ph)
Max Continuous Voltage	120% of Nominal
Nominal Input Current	5A via External CT
Max Continuous Current	120% of Nominal
Frequency	50Hz ±10%

Accuracy

Voltage	0·5% of range maximum
Current	0·5% of range nominal
Frequency	0·2% of mid-frequency
Power Factor	1% of unity (0.01)
Active Power (W)	±1% of range maximum
Reactive Power (VAr)	±1% of range maximum
Apparent Power (VA)	±1% of range maximum
Active Energy (Wh)	Class 1 IEC 62053-21
Reactive Energy (VARh)	±1% of range maximum
Total Harmonic Distortion	1% up to 31st harmonic
Response time to step input	1s, typical, to >99% of final reading, at 50 Hz

Auxillary Support

This unit does not require a separate auxiliary supply as it is self-powered from the Voltage Inputs.

Interfaces for External Monitoring

Three interfaces are provided:

RS485 communication channel that can be programmed for Modbus RTU protocol
Relay output indicating real-time measured energy (configurable)
Pulse output 3200IMP/kWh (not configurable)

The Modbus configuration (baud rate etc.) and the pulse relay output assignments (kW/kVArh, import/export etc.) are configured through the set-up screens

SDM630 - Modbus (RS485 Output for Modbus RTU & Pulsed Output)

For Modbus RTU, the following RS485 communication parameters can be configured from the set-up menu:

Baud Rate	2400, 4800, 9600, 19200, 38400
Parity	None(default) /Odd /Even
Stop Bits	1 or 2
RS485 Network Address	3 Digit Number - 001 to 247
Modbus	Word order Hi/Lo byte order is set automatically to normal or reverse. It cannot be configured from the set-up menu.

Reference Conditions of Influence Quantities

^{Influence Quantities are variables that affect measurement errors to a minor degree. Accuracy is verified under nominal value (within the specified tolerance) of these conditions.}

Ambient temperature	23°C ±1°C
Input waveform	50 or 60Hz ±2%
Input waveform	Sinusoidal (distortion factor < 0·005)
Auxiliary supply voltage	Nominal ±1%
Auxiliary supply frequency	Nominal ±1%
Auxiliary supply waveform (if AC)	Sinusoidal (distortion factor < 0·05)
Magnetic field of external origin	Terrestrial flux

Environment

Operating temperature	-25°C to +55°C*
Storage temperature	-40°C to +70°C*
Relative humidity	0 to 95%, non-condensing
Altitude	Up to 3000m
Warm up time	1 minute
Vibration	10Hz to 50Hz, IEC 60068-2-6, 2g
Shock	30g in 3 planes