| Model: | EM735 modbus |
|---|---|
| Brand: | Fineco |
| Origin: | Made In China |
| Category: | Electronics & Electricity / Electronic Instrument / Electricity Meter & Instrument |
| Label: | wattmeter , programmable energy , din rail meter |
| Price: |
US $100
/ pc
|
| Min. Order: | 200 pc |
| Live Chat: | Last Online:30 May, 2014 |
EM735 three phase din rail install wattmeter programmable energy meter 
Benefits and Main Features
Three phase metering
Standard DIN rail Format (DIN43880)
CI.1 Accuracy (EN50470)
Energy consumption LED
Isolate pulse output and IR (DIN43864)
LCD display, 5 integer 2 decimal
Large clear backlight display
Internal transformer
Direct metering up to 100A,transformer metering 1.5(6)A
27 CT rate can be selected
Optional single-phase model
Smart communication port RS485
Program by button on the nameplate
Memory back-up (EEprom)
7 DIN modules
CE approval
Meter specification
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|
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 |
|
|
|
|
|
|
Direct connected meters |
Transformer connected meter |
|
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°C Cover 650°C |
Terminal 960°C Cover 650°C |
|
Enclosure material |
||
|
upper |
ABS+PC |
ABS+PC |
|
lower |
ABS+PC |
ABS+PC |
|
Pulse output |
|
|
|
Pulse width(ms) |
80 |
80 |
|
Pulse constant(imp/kWh) |
400 |
1600 |
|
LED |
||
|
LED constant |
400 |
1600 |
|
Dimension |
||
|
Width (mm) |
126 |
126 |
|
Height (mm) |
104.5 |
104.5 |
|
Depth (mm) |
60 |
60 |
Reading the meter
The smart energy meter is equipped with 6+1 LCD display, which is used as recording consumption and can’t be reset to zero. The number system is based on units of 10. And unit is kWh.
Another way through RS485 and PC software or HHU(hand held unit)unit can read power consumption
Pulse output
Smart din rail energy meter is equipped with a pulse output which is fully separated from the inside circuit. That generates pulses in proportion to the measured energy. They are test pulse output (pins 24 & 25). Usually, the test pulse output is used as testing accuracy or reading purpose in close quarters.
The test pulse output is a polarity dependant, passive transistor output requiring an external voltage source for correct operation. For this external voltage source, the voltage (Ui) should be 5-27V DC, and the maximum input current (Imax) should be 27mA DC. To connect the impulse output, connect 5-27V DC to connector 25 (anode), and the signal wire (S) to connector 24 (cathode). The meter pulses is indicated on the front panel.
Far Infrared interface
The far infrared communication port is on the right of LCD screen. It is infrared wireless communication port. HHU(hand held unit) can directly communicate the data between the meter and this port.The data transmission speed is 1200bps.The communication distance is not less than 5m.
Communication port
Smart meter has equipped communication port, we can program the meter’s operation data or reading via these 2 ports.(Pin26 pin27) .
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|
RS485 output |
|
|
Protocol |
Modbus RTU |
|
|
Data format |
8 data bit,Even,1 stop bit |
|
|
Baud rate |
1200(option),2400,4800,9600 |
|
|
Address range |
1-256 User settable |
|
|
Bus loading |
64pcs |
|
|
Cable |
AWG18 |
Programming
By pressing the keys “SET” starts menu programming mode.
password verify
On the smart meter display will appear : CodE followed by the currently memorized value . With the set key, you can move the cursor to the right .Use the page down and page up. page up button can setup the Number from first two digits from 00 to 25.
for example: 000 to 250
Page down button can setup the number the third digit from 0 to 9.
for example: 000 to 009
CT rate setting
On the smart meter display appear: CT followed by the currently memorized value .With the set key, you can move the cursor to the right . Use the page down and page up, you can set one of the following values:
5:5 125:5 400:5 1000:5 2500:5 7500:5
50:5 150:5 500:5 1200:5 3000:5
60:5 200:5 600:5 1500:5 4000:5
75:5 250:5 750:5 2000:5 5000:5
100:5 300:5 800:5 2400:5 6000:5
Close the new settings, press the “set” key
Baud rate setting
On smart meter display will appear: bAUd followed by the currently memorized value
With the “Set” key, you can move the cursor to the right . With the page down and page up, you can set one of the following values:
1200=1200bit/sec
2400=2400bit/sec
4800=4800bit/sec
9600=9600bit/sec
Address setting
On smart meter display will appear: Addr followed by the currently memorized value
With the “Set” key, you can move the cursor to the right . With the page down and page up, you can set one of the following values:
001
……
……
255
Noted: modbus address rage is 001---to 255
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