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Help CenterEM537 Smart Meter With Rs485 Din Mounting Rail Active and Reactive Power Meter
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EM537 smart meter with rs485 din mounting rail active and reactive power meter
Benefits and Main Features
Three phase metering din mounting rail
Active and reactive power meter
Bi-directional active energy measuring,4-quadrant reactive measuring for latest 12 months
Records MD and its occurent time for latest 12 months
Instant Volt, Amp, Power factor, Frequency, Active power, Reactive power, Apparent power
TOU of 4 tariffs, up to 12 time periods per day
Summer time switch
Direct metering up to 65A,CT version is available
Clock time verification function
Isolate pulse output (DIN43864)
128×64 Lattice LCD display, meter display when power fails
Large clear backlight display
Optional single-phase model
smart meter with rs485 communication port, modbus protocol
IR port Program by button on the nameplate Memory back-up (EEprom)
Meter specification
|
Direct connected meters |
Transformer connected meter |
Measured Voltage(v) |
Wye: 85-380 V L-L |
|
Current(A) | ||
- Iref |
5A |
1.5 |
-Itr |
0.5A |
0.15A |
-Imax |
65A |
6A |
-Imin |
0.25A |
0.015A |
-Ist |
20mA |
3mA |
Power consumption of current circuits(VA) |
< 0.01 |
< 0.01 |
Power consumption of voltage circuits(W) |
< 1.3W |
< 1.3W |
General data |
|
|
Frequency (Hz) |
50/60 |
50/60 |
Memory back-up |
EEprom |
EEprom |
Environment resistance to heat and fire |
Terminal 960℃ Cover 650℃ |
Terminal 960℃ Cover 650℃ |
Enclosure material | ||
upper |
ABS+PC |
ABS+PC |
lower |
ABS+PC |
ABS+PC |
Pulse output |
|
|
Pulse width(ms) |
100 |
100 |
Pulse constant(imp/kWh) |
1000(default) 100/10/1 can be prog |
6400(default) 100/10/1 can be prog |
LED | ||
LED constant |
1000 |
6400 |
Dimension | ||
Width (mm) |
90 |
90 |
Height (mm) |
104.5 |
104.5 |
Depth (mm) |
60 |
60 |
Measuring Function
On the EM537’S front panel, there are three LED, active/reactive energy pulse light, and alarm indicator lights .
Meter can measure import active energy , export active energy , four-quadrant reactive energy.
Demand function
The meter can calculate the forward and reverse active/reactive demand and the demand occurrence time.
Data store function
The meter can store total active energy, forward/reverse active total energy and time-sharing energy. Also include the reactive forward/reverse total energy and time-sharing energy, four-quadrant reactive total energy and time-sharing energy.The meter can store current and previous 12months data.
tou function
The internal clock circuit of energy meter has time automatic switching function. Calendar, clock and rate can be set and adjustment through RS485, infrared interface. At least 4 tariffs and 12 time interval can be set within a natural day
Electricity parameters measurement and monitoring
The meter can measure: voltage, current, active power, reactive power, apparent power,power factor and frequency of each phase. Also can display the direction of the current and power. The resolution of frequency is 0.01Hz. the accuracy of Voltage,current,activepower,reactive power and apparent power is 1%.
Summer/winter time switch permit/prohibition
Smart meter provide automatic summer/winter time switch accomplished at 02.00 on the last Sunday of March(forward 1 hours) and at 03:00 on the last Sunday of October(back 1 Hours).
Communication Function
With an infrared COM and a RS485 COM. Its physical layers are independent with each other.The meter can realize data acquisition, broadcast time setting, read, program and manage through hand-held terminals, data acquisition terminal, test equipments and computers.
Wiring diagrams
Direct connected meter Transformer connected meter
single-phase model
Other product:
Software:
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