DDS 155 single phase electronic watt-hour meter uses imported specific large-scale integrated circuits and other advanced 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. LED displays electricity consumption,so that it si easy to control.Features
1. Product's Type—Register (5+1), LCD (5+1 or 6+2), LED (5+1).
2. Electric Power Measurement- Positive active power, reverse active power and power in A, B, C phase which can be measured.
3. Intelligent Design—Imported singlechip which controlled by microcomputer, full digital metering, with advantages of high accuracy, good linearity, wide range, low consumption and prevent from electricity stolen.
4. Reliable Design-Perfect power source and electromagnetism compatible design, which are suitable to the strong electromagnetism disturbance and big occasion of power source fluctuation.
5. Cover for Meter-- Fully sealed dustproof and waterproof design, material of cover has excellent flame retardant and anti-corrosion, anti-aging properties.
6. On-Off Manner—Build in or external switch can be optional.
7. Communication Mode-- Infrared, RS485 interface or carrier communication module (Optional).
Technical Parameter| Name | Parameter |
| Standards | IEC 62053-21: 2003, DL/T645-1997/2007 |
| Voltage | 220V (Single-Phase) |
| Current | 1.5(6)A, 5(20)A, 5(30A), 5(40)A, 5(60)A, 10(40)A, 10(60)A, 15(60)A, 20(80)A |
| Frequency | 50Hz |
| Accuracy Class | 2.0, 1.0, 0.5S; 2.0 (Reactive Power) |
Impulse Constant
(imp/kWh) | 6400, 3200, 2400, 1600, 1200, 800, 400, 200 |
| Clock Accuracy(optional) | ≤ 0.5s/Day (Refer to temperature of 23 centigrade); |
| Data Storage Period | ≥ 10 years, the working time lasts more than 5 years even if power off . |
| Power Consumption | ≤ 0.8 W/Phase |
| Creeping design | Have the function of intelligent logical anti-creeping. |
Wuhan Radarking Electronics Corp. is a high-tech corporation which established in 2002. As professional manufacture in meters, our mainly products including: Full Digital IC Card Prepayment Electronic Meters, Smart Electronic Meters, IC Card Prepayment Water Meters, Gas Meters as well as Meter (network) Reading System. We are one of the few manufacturers in Hubei Province whose annual production of electronic meters and water meters can be up to 2.4 million sets.
Employee: There are more than 200 employees including 50 technicians, 10 senior technical staff and 70 employees who have already got college degree, 30 of them obtained metrological verification certificate. Production and technical staff all undergo a rigorous pre-service training, who are skilled and have a strong sense of quality.
Technology: We have a R & D group of 20 persons (About 10% of the company's employees).
Equipment: We have 260 sets of production and testing equipments, including 7 production lines, more than 20 units of the calibration device such as wave soldering machine, reflow soldering machine, automatic placement machine, plug-in assembly lines, assembly lines, packing lines and etc, which have all meet the production requirement.
Material: Materials are in strict accordance with the requirements of the meters and the procurement of national standards, we have already established a qualified supplier evaluation system, and developed a series of test standard. All the materials have to pass strict test before entering into factory, and then be used in production. Measures have been taken to prevent damp and static electricity to ensure the normal performance of the raw materials.
Craft: To make a variety of electronic meters in accordance with the production process, we have developed process documents, to ensure the quality of the products.
Test: We have electronic meter laboratory and full range of test equipments, such as EMC Equipment (ESD, EFTB, SURGE, RF, Attenuation Oscillasion Impulse, DIP, Impulse Current, Pulsed Voltage and etc), Environmental Test Equipment (Alternating Temperature Humidity Test Chamber, Dust Test Devices, Waterproof Test Device, Shock Test Device, Vibration Test Device and etc), R&D Testing Equipment. We make a variety of electronic meters in accordance with the test and develop our test documents to ensure the quality of the products.
Environment: Our production base covers an area of 30 acres, and self-building workshop covers an area of 7000 square meters, production and storage area covers more than 5000 square meters.
Management: We have a high efficiency, innovative, serious management team, and the factory has already passed ISO9001-2008 QMS.
