It is a device which is developed by Radarking Electrics Co., Ltd., is use for field data collection of RS485 Interface Meter Reading System. It is responsible for gathering code data of intelligence meter, then transfer it to DCU through the RS485 bus or power line carrier.
It also a smart electricity meter with RS485 and power line carrier communication interface upstream. Meter Acquisition Unit has four communication interface: RS485 communication interface uplink, power line carrier interface uplink, RS485 bus communication interface (connected to the power meter) downlink, IR infrared communication interface (for local copy of data and collector set).
Functions
Instructions and data forwarding
Meter Acquisition Unit terminal should be able to receive meter data and control instructions of DCU by upstream channel, then by the statute of conversion (communication protocol of upstream channel is converted to RS485 interface, single-phase electronic power meter) real-time transmission to the 485 power meter downstream, and then sent back the response data to DCU. Meter Acquisition Unit terminal should support all the data copied of 485 meter (including expansion of data setting identification), broadcasting schools, pull switch and instructions forwarding.
Capacity requirements
Each Meter Acquisition Unit terminal can connect 64 485 meter.
Free setup function
Meter Acquisition Unit terminal installed, ensuring properly connected, it is no need to do any operation setting, it will go well. When removal or replacement of meter, it isn't need to do any settings on terminal operations, it will go well.
Transfer function
With IR handset, it can reproduce RS485 or power line carrier network data of other MRU.
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Operating voltage |
single phase |
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Operating frequency |
50Hz ± 5% |
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Active power (without communicating) |
≤ 1.2W |
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Apparent power |
≤ 10VA |
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Operating temperature |
-25 °C ~ +55 °C |
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Storage temperature |
-40 °C ~ +80 °C |
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Relative humidity |
≤ 95% |
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Radiated electromagnetic field immunity |
80MHz-1000MHz, field strength 10V / m |
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ESD immunity |
> 8kV |
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Surge immunity |
> 4.0kV |
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Fast electrical pulse immunity |
> 4.0Kv |
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Life |
> 10 years |
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Security |
the PC alloy shell fire |
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.
