1.single phase meter,register display
2.ABS base and cover
3.using life more than 10years
4.conformed to IEC62053-21
DDS228 single phase electronic watt-hour meter adopts micro-electronic technology to measure the power. It gets the voltage sampling signals
from the voltage divider and gets the current signals from the current divider, then
gets the current & voltage signals from the multiplier and through frequency conversion
to produce a counting pulse in which the frequency is in direct ratio with the voltage current
product. Then the counter is driven by frequency dividing stepping motor to measure the power.
Its function index are completely conformed to National Standard GB/T17215-98
Structure characteristics:
1> The electric meter applies full screen and full sealed structure.
2> It has the features of satisfactory electromagnetic resistance function, low
self-consumption and power saving, high precision prevent stealing, high overload
and long service time, etc
3> standard:IEC62053-21.
4> The meter base made by ABS ,Iron,Aluminum,etc
5> The terminal screws and seal screws made by stainless steel to avoid rust
main technical data:
1> Relative temperature:-10~+60
2> Relative humidity: =or<85%
3> accuracy class: class 1.0 /class 2.0
4> counter display or LCD display
Specification:
1> rated voltage:220V 240V 300V
2> rated frequency:50HZ 60HZ
3> Basic current(Max current):1.5(6)A 2.5(10)A 5(20)A 10(40)A
15(60)A 20(80)A 5(30)A 10(60)A
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