Eastron SDM530-MT User manual

Eastron SDM530-MT User Manual
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SDM530-MT
Three Phase Multi-function DIN rail meter
Measures kWh Kvarh, KW, Kvar, KVA, P,
F, PF, Hz, dmd, V, A, etc.
Bi-directional measurement IMP & EXP
Two pulse outputs
RS485 Modbus
Din rail mounting 35mm
100A direct connection
4 tariffs,10 time segments
Better than Class 1 / B accuracy
USER MANUAL
2015 V1.5

Eastron SDM530-MT User Manual
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Introduction
The SDM530-MT measures and displays the characteristics of three phase four wires (3p4w)
supplies, including voltage, frequency, current, power, active and reactive energy, imported or
exported. Energy is measured in terms of kWh, kVArh. Maximum demand current can be
measured over preset periods of up to 60 minutes. In order to measure energy, the unit requires
voltage and current inputs in addition to the supply required to power the product.
SDM530MT-MT supports max. 100A direct connection, saves the cost and avoid the trouble to
connect external CTs, giving the unit a cost-effective and easy operation. Built-in interfaces
provides pulse and RS485 Modbus RTU outputs. Configuration is password protected.
Unit Characteristics
The Unit can measure and display:
Line voltage
Line Frequency
Currents, Current demands
Power, maximum power demand and power factor
Active energy imported and exported
Reactive energy imported and exported
The unit has password-protected set-up screens for:
Changing password
Demand Interval Time(DIT)
Reset for demand measurements
Pulse output duration
Two pulse output indicates real-time energy measurement. An RS485 output allows remote
monitoring from another display or a computer.
RS485 Serial–Modbus RTU
This uses an RS485 serial port with Modbus RTU protocol to provide a means of remotely
monitoring and controlling the Unit
Set-up screens are provided for setting up the RS485 port.
Pulse output
This provides two pulse outputs that clock up measured active and reactive energy. The constant
of pulse output 2 for active energy is 400imp/kWh, its width is fixed at 100ms.
The default constant of configurable pulse output 1 is 400imp/kWh default pulse width
is100ms.The configurable pulse output 1 can be set from the set-up menu.

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Start-up Screens
1
The first screen lights up all display
segments and can be used as a display
check
2
The second screen indicates the
firmware installed in the unit and its
build number.
3
The interface performs a self-test and
indicates the result if the test passes.
After 5 seconds delay, the screen will display active energy measurements.
Measurements
The buttons operate as follows:
1
Select the Voltage and Current display screens
In Set-up Mode, this is the “Up” or “back”button
2
Select the Power, Frequency and Power factor
display screens
In Set-up Mode, this is the “Down” button
3
Select the Energy display screens
In Set-up mode, this is the “Enter” or “Right”
button

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Voltage and Current and Max Demand
Each successive pressing of the button selects a new range:
1-1
Phase to neutral voltages
1-2
Phase to neutral voltages
2-1
Current on each phase
2-2
Neutral current
3
Maximum Current Demand

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Power and Frequency and Power factor
Each successive pressing of the button selects a new range:
1-1
Instantaneous Active Power in kW
When it’s exported, there will be a mark
of minus “－”.
1-2
Instantaneous Reactive Power in kVAr
When it’s exported, there will be a mark
of minus “－”.
1-3
Instantaneous Volt-amps in KVA
When it’s exported, there will be a mark
of minus “－”.
1-4
Total kW, kVArh, kVA
When it’s exported, there will be a mark
of minus “－”.
2
Frequency and Power Factor (total)

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3
Power Factor of each phase
4
Maximum Power Demand
Energy Measurements
Each successive short pressing (lasting less than 3s) of the button selects a new
range:
1-1
Total active energy in kWh
Total kWh=imported +exported (kWh)
1-2
Total Imported active energy in kWh
1-3
Total Exported active energy in kWh

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2-1
Tariff 1 Active energy
2-2
Tariff 2 Active energy
2-3
Tariff 3 Active energy
2-4
Tariff 4 Active energy
3-1
Total reactive energy in kVArh
Total kVArh=imported +exported (kVArh)
3-2
Imported reactive energy in kVArh

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3-3
Exported reactive energy in kVArh
4-1
Tariff 1 Reactive energy
4-2
Tariff 2 Reactive energy
4-3
Tariff 3 Reactive energy
4-4
Tariff 4 Reactive energy
5-1
Date
Example:1st,Jan,2000

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5-2
Time
Hour: minute: second
00:02:16
Set-up
To enter set-up mode, long pressing the button for 2 seconds, until the password
screen appears.
Setting up is password-protected so you must enter the correct password (default ‘1000’) before
processing. If an incorrect password is entered, the display will show: Err
To exit setting-up mode, press repeatedly until the measurement screen is restored.
Menu Option Selection
1) Use the and buttons to select the required item from the menu
2) Press to confirm your selection
3) If an item flashes, then it can be adjusted by the and buttons. If not,
there maybe a further layer.
4) Having selected an option from the current layer, press to confirm your selection.
The SET indicator will appear.

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5) Having completed a parameter setting, press to return to a higher menu level. The
SET indicator will be removed and you will be able to use the and
buttons for further menu selection.
6) On completion of all set-up, press repeatedly until the measurement screen is
restored.
Number Entry Procedure
When setting up the unit, some screens require the entering of a number. In particular, on entry
to the setting up section, a password must be entered. Digits are set individually, from left to
right. The procedure is as follows:
1) The current digit to be set flashes and is set using the and buttons
2) Press to confirm each digit setting. The SET indicator appears after the last digit
has been set.
3) After setting the last digit, press to exit the number setting routine. The SET
indicator will be removed.
Change password
1
Use the and to
choose the change password option
2-1
Press the to enter the
change password routine. The new
password screen will appear with the
first digit flashing