RF Card Prepayment Smart Meter , Three Phase Four Wires Digital KWH Meter
RF Card Prepaid Energy Meter Three Phase Four Wires KWH Meter with Power Off Display
DTSY150D electric meter is worked by contact type IC card.However, open IC card, which is easily affected with the environment, need to be protected and will creates extra expense and inconvenience.
Therefore, Radarking designs a kind of prepaid electronic meter with contact-less RF technology, that is, the purchased credit is access into the meter through contact-less IC card, the unit price of kWh can be set in card, and the meter will deduct the credit based on each 0.01kWh, when the tariff is changed, the management system will reset the card to change the unit price of the meter,so that the meter can deduct the credit with the adjustment of the unit price to reduce the consumption of power company.
Technical parameters:
| Electrical parameters: | |
| Voltage | |
| Nominal voltage Un | 3x220V |
| Extended operating voltage range | 80%~115%Un |
| Limited voltage | 70%~120%Un |
| Frequency | |
| Nominal frequency fn | 60Hz |
| tolerance | 5% |
| Current | |
| Basic current(Ib) | 10A |
| Maximum current(Imax) | 100A |
| Starting current(Ist) | 30mA |
| Active energy constant | 400imp/kWh |
| Measurement Accuracy | |
| Active energy to IEC6205321 | Class1.0 |
| Reactive energy to IEC6205323 | Class2.0 |
| Power Consumption | |
| Power consumption in Voltage circuit | <2W <8VA |
| Power consumption in current circuit | <1VA |
| Temperature range | |
| Operation meter | 25ºC to+70ºC |
| Storage | 40ºC to+85ºC |
| Insulation strength | |
| AC Insulation strength | 4kV at 50Hz during 1min |
| Impulse voltage 1.2/50μs mains connections | 8kV |
| Electro Magnetic Compatibility | |
| Electrostatic discharges | |
| Contact discharge | 8kV |
| Air discharge | 16kV |
| Electromagnetic RF fields | |
| 27MHz to 500MHz typical | 10V/m |
| 100kHz to 1GHz typical | 30V/m |
| Fast transient burst test | 4kV |
| Mechanical requirements | |
| Meter shell Protection Rate | IP54 |
| Protection | classII |
Main Features:
- 1. It adopts logic encrypted IC card as user electricity purchasing card, the meter works after the prepayment.
2. One card just for one meter, fake card is completely avoided.
3. Automatic power off when overload, also can prevent the error overload when the load restart
4. Display by both mechanical calculating device and numeral tube.
5. Two alarm grade to remind purchasing electricity.
6. The forward and opposite direction active power can be measured accurately
7. Compute the amount of electricity normally in the absence of the phase
8. Embedded large power latching bi-stable relay is used to cut off power supply directly.(except 1.5(6) A ), low power consumption, high reliability.
9. The electricity is not used for 6 days, energy meter send the power cut off signal.
10. It has the functions of failure checkup, anti-stealing electric power and meter record.
11. The electricity purchasing card writes back the information of user's power consumption automatically.
12. It can display the operation situation of energy meter every 10 seconds, including current power consumption information, remaining capacity, power cutoff information and error information.
13. The pulse indicator light imitates the traditional energy meter's turn plate to indicate the status of meter.
14. The 1.5(6)A meter has switch out indicator light to indicate the meter has sent power cutoff signal and relay K1 action, the external breaker cutoff the power supply. The other meter has the warning indicator light to indicate the remaining power reaches the deadline, reminding the user to purchasing the electricity ASAP.
15. The meter has the high stability and reliability. It is no need to adjust & regulate when long term operation. The data can be saved for a long time if the power is cutoff.
16. Wide working temperature range, low request to working environment
About Company:
Wuhan Radarking Electronics Corp. is a modern share enterprises which focusing on the smart Internet of things(IOT) /smart grid energy consumption sensor/intelligent electric safety integrated solution. It established in 2002(former name: Wuhan Radarking Co.,Ltd.)and went public on January 27, 2015 with the stock abbreviation RADARKING and stock number 831722. It owns the independent R&D center and factory which is the key recommended high-tech enterprises in Wuhan city.
It mainly R&D, manufacture and sell the integrated solution of smart Internet of things(IOT) energy consumption sensor/smart grid energy consumption sensor/energy consumption information acquisition and transmission(Collector, Concentrator, Communication Module), smart electric meter, smart water meter, “RDK” energy Internet of Things(IOT) intelligent energy safety integrated solution, digital campus energy consumption acquisition(meter reading) charging management integrated solution, 4-in-1 Meter energy consumption acquisition(meter reading) charging management integrated solution, 4-in-1 Meter/All-in-One Card cloud computing total charging management integrated solution, energy consumption monitoring and analysis integrated solution, mobile phone APP(Energy Consumption, Fast E Top Up).
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