Home > Products > Energy Meters > EM738 smart meter with rs485 din mounting rail active and reactive power meter
EM738 smart meter with rs485 din mounting rail active and reactive power meter
- shanghai
- T/T
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Product Details
| Place of Origin | Shanghai, China | Brand Name | Fineco | |
| Model Number | EM738 | Display Type | Digital Only | |
| Phase | Three Phase | Measuring Energy Range | 999999.99 | |
| Accuracy Class | better than Class1.0 | Output Voltage | 3*230/400V | |
| Operating Temperature | -25 to +75 | Dimensions | 126*104.5*60 |
Product Description
EM738 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
load profile(option)
Load control Relay inside
Terminal cover open record(option)
Direct metering up to 100A,CT version is available
Clock time verification function
Isolate pulse output (DIN43864)
LCD display, 6 integer 2 decimal, 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 | |
Memory back-up | EEprom | EEprom |
Environment resistance to heat and fire | Terminal 960°C Cover 650°C | Terminal 960°C Cover 650°C |
Internal real-time clock with battery | ||
Time-keeping accuracy | <0.5s/day | |
Clock operating with battery | >15 years | |
Power off clock running time | >5 years | |
Enclosure material | ||
| ||
Relay | ||
Max junction voltage | AC250V DC30V | |
Max junction current | 3A | |
Battery | ||
Battery volume | 1200mAh | |
Battery life | ≥3years | |
Width (mm) | 126 | 126 |
Height (mm) | 104.5 | 104.5 |
Depth (mm) | 60 | 60 |
Direct connected meters | Transformer connected meter | |
Voltage(v) | 3×57.7/100V | 3×57.7/100V |
3×220/380V | 3×220/380V | |
3×230/400V | 3×230/400V | |
Operational voltage | ±70%Un | ±70%Un |
Current(A) | ||
- Iref | 10A | 1.5 |
-Itr | 1A | 0.15A |
-Imax | 100A | 6A |
-Imin | 0.5A | 0.015A |
-Ist | 40mA | 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 |
Measuring Function
On the EM738’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%.
Switching off display
When the power is off, user can read the meter by pressing button on the panel.
Load record
The meter can set up the “load curve” and “the start time of load curve” by serial interface. Users can choose 6 types data to record by timing in order to make the load curve.
Load control (disconnect switch)
The meter has an internal relay output interface to control the Load. The meter can set up the power limit and the delay time of switch off and on when the power is over the limit.
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.
Using communication function , the smart meter can connection to the Fineco Cloud.The reading can be viewed through the web browse at any time.
Other product:
Software:
Contact Us
- Shanghai Fangqiu Electric Co., Ltd.
- Contact namekevin Tian Chat Now
- Phone0086-021-62129691
- AddressRm. 1903, No. 1958
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| Auto Meter Reading System | Communication devices | Energy Meters | Low voltage components |
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