Single Phase Digital Energy Meter
|FOB Price:||US $6.79-7.95 / Piece|
|Min. Order:||50 Pieces|
|Min. Order||FOB Price|
|50 Pieces||US $6.79-7.95/ Piece|
|Payment Terms:||L/C, T/T, Western Union, Paypal|
- Model NO.: DDS
- HS Code: 9028309000
- Voltage: 220V
DDS single phase electronic watt-hour meter uses imported specific large-scale integrated circuits, A/D conversion, digital multiplier, digital sampling and processing technology and SMT technology. It can measure AC single phase active electric power which the rated voltage is 220V and frequency is 50Hz. It can measure forward and reverse active power accurately and it calculates accumulatively in the same direction. It can prevent electric larceny at the same time. It outputs heartbeat through optical couple. LCD displays electricity consumption, so that it is easy to control. It is design and manufacture according to industrial user's electricity consumption. With high-quality tantalum capacitors, it has long service life.
It can prevent phase sequence errors, current reversal, different phase of voltage and current, voltage wire disconnection and zero disconnection etc. measurement errors and stealing behavior while wiring. It can measure single phase active power whose rated frequency is 50HZ.
The main feature of the product: Anti-electromagnetic disturbance, low consumption, high precision, wide-range, anti-theft, wide range, long serve life, LCD display. The applicable environmental temperature is -10ºC~50ºC, the relative humidity can not be over 85%.
2. Working principle
When this Watt-hour meter is working, voltage and current take samples through sampling circuit, after A/D conversion, it sends to multiplier to multiply, after conversion through D/F converter, pulse output from frequency dividing circuit send to single chip CPU to data processing and measurement, single chip CPU communicates with outside and set, manage and display the meter through infrared extension and RS485 interface.
3. Main features:
Single phase active power measurement. It can work for a long time.
It conducts Signal sampling from shunt voltage divider. It can drive a stepper motor to let the register calculate the energy degrees cumulatively through the processing of amplification, multiplication, integration, V/F conversion, frequency division, power driver, etc.
4. Specifications and main technical parameters
1. high precision: error <±1.0%<±2.0%
2. high sensitivity: Start current<O.4%Ib
3. Wide load: current overload multiple > 12times
4. low power consumption : the meter itself consumes < 1W
5. High reliability:>100000 hours
6. light weight : <O.6Kg
7. Starting current : when rated voltage, rated frequency and power factor are1.0, and load current >0.4%1blt, the meter can work properly.
8. Creeping: anti-creep logic circuits
9. Reference voltage(V):220
10. Basic current: lb(A):1.5(6),2.5(10),5(20),10(40),15(60)
|Specifications and main technical parameters|
4.3 Basic error
|Current value||Power factor|
|Error limit (%)|
|Precision grade||Active power 1.0 grade,2.0grade|
|Working voltage range||stipulated working voltage range:0.9Un~1.1Un|
|Expanded working voltage range:0.8Un~1.2Un|
|Working temperature range||stipulated working voltage range:-25ºC ~+55ºC|
|limited working voltage range:-40ºC ~+70ºC|
|Storage and transportation limited temperature range:-40ºC ~+70ºC|
|Power consumption||Voltage circuit:≤2W/5VA;current circuit:≤1VA|
|Display mode||Register display|
1.Q:How can I get the samples?
A:If you need some samples to test,please pay for the transportation freight of samples and our samples will be counted on the next order .We send the samples to you only after receipt of your payment.
2.Q:How much the transportation freight will be for the samples?
A:The freight depends on the weight and packing size and your area.
3.Q:How can I get your Price list?
A:Please send us your email or fax and order information,then I can send you the price list.
4.Q:Can we have our logo or company name to be printed on your products or the package?
A:Sure.Your Logo can be puted on our products by sticker.And if you want your logo and company name to be printed on the cartons for the products,you can send us the artwork by email.
5.Q:How to order?
A:Please send us your purchase order by email or fax or you can ask us to send you a proforma invoice for your order.
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