CONFORMED STANDARD
IEC62052-11/21
IEC62053-21/22/23
IEC62056-21
FUNCTIONS:
Measure reverse and forward energy, and reverse energy is measured as forward energy.
LCD display.
Timely single phase power consumption measurement with 3 tariffs and 12 time periods.
Automatically read and store the energy, it can store 12 months, data, and can store for 10 years.
RS485 and infrared communication ports.
FEATURES:
Active energy measurement, no need to calibrate for a long working time.
LSI design, less spare part, less power consumption, simple structure.
Active energy meter keep a good linear error within the range 1%Ib~Imax.
Use quality component with long service life, the accuracy cannot be affected by the frequency, temperature, voltage, harmonic. It is reliable and with long service life.
RS485 communication port realizing remote meter concentrative reading.
PARAMETERS:
|
Model |
DDSF720 | |
|
CLASS |
1.0 | |
|
Display |
LCD | |
|
Rated Voltage |
220V-240V | |
|
Rated(Max.) Current |
2.5(10)A,5(20)A,5(30)A,10(40)A, 20(80)A | |
|
Power
Loss |
V Circuit |
＜1W/6VA |
|
I Circuit |
＜1VA | |
|
Working Temperature |
-25～55℃ | |
|
Limited Temperature |
-40～70℃ | |
|
Relative Humidity |
≤85% | |
|
Voltage Range |
0.7Un～1.3Un | |
|
Reference Frequency |
50Hz/60Hz | |
|
Start Current |
0.004Ib | |
|
Clock Error |
≤0.5s/d(23℃) | |
|
Dimension |
139mm×128mm×58mm | |
|
New Weight |
Approx 0.7kg | |