DDS720/721-C single phase LCD kWh meter
APPLICATION:
The meter is used for the power measurment of single phase power consumer and suitable for concentrative reading and maintenance.
FUNCTIONS:
Measure reverse and forward energy, and reverse energy is measured as forward energy.
LCD display, it can display for a long time at power failure.
Real time clock.
RS-485 communication port.
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 | DDS720-C | DDS721-C | |
Class | Class | 1 | 2 |
display | LCD | ||
Rated voltage | 220V | ||
Rated (Max.) Current | 2.5(10)A 5(20)A 5(30)A 10(40)A 10(60)A 15(60)A 20(80)A | ||
Power Loss | V circuit | 1.4W/6VA | |
I circuit | 1VA | ||
Working temperature | -2555 | ||
Limited temperature | -4070 | ||
Relative humidity | ≤85% | ||
Voltage range | 0.7Un1.3Un | ||
Reference frequency | 50Hz/60Hz | ||
Start current | 0.004Ib | ||
Clock error | ≤0.5s/d(23) | ||
Dimension | 139mm×123mm×58mm | ||
Net weight | Approx. 0.7kg | ||
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See larger image: DDS720/721-C single phase LCD kWh meter
