Active Member
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[China]
Address: No.270, Huangjinkou 3rd Village, Hanyang District, Wuhan City, Hubei Province, China
Contact name:Ada Yang
WUHAN RADARKING ELECTRONICS CORP. |
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Reliable Single Phase Active Energy Electric LoRaWAN Meter with LCD Display
Description:
DDS155 series BR (LoRaWAN) single phase electric meter is a kind of fully digitized energy meter which adopts the SOC high-density V9821S chip.
Besides measure active energy, it also has function for online power display, smart anti-tamper, overload control, remote meter reading and etc.
It sends data to corresponding gateway through LoRaWAN wireless network. It has advantages in high accuracy, low power consumption, and good stability that can be widely used for the single phase alternating current in city, rural areas or factory enterprises, etc.
Feature:
Main function characteristics:
(1) Adopt SOC singlechip V9821S, enhanced 8052MCU core, energy
measurement, integrated
analog front end, RTC module, LCD driver, Flash, accurate
measurement and active energy display. (2) Remote ON/OFF control:
according to power usage, can send power off command from main
station, cut off user’s load circuit. Or send power on command to
connect user’s load circuit. (3) With LoRaWAN wireless network to
transmit data to corresponding gateway, automatically
upload data, default 10 mins as period to upload data (this period
can be set ). (4) Compatible with communication protocol
DL/T645-2007. 2.
Standard and qualification:
| Parameter | Introduction |
| Standard | IEC62053-21, IEC62052-11, DL/T645-2007 |
| Rated voltage | 220V |
| Working voltage | 80~120% (rated voltage) |
| Current | 5(60)A |
| Accuracy | Class 1.0 |
| Rated frequency | 50Hz/60Hz |
| Pulse constant | 1200imp/kWh |
| Overall Power Consumption | <1.0W |
| Starting current | ≤0.004 Ib |
| Overall dimensions | 154mm×110mm×60mm |
| Weight | 0.5kg |
| Operating life | >10 years |
| Normal working temperature | -25℃~ +55℃ |
| Limited working temperature | -45℃~ +70℃ |
| Relative humidity | ≦85% |
Operation, debug and installation:
1) No need for extra operation and debug after leaving factory, can
be in normal use since finished installation by professional
person.
2)Before installation, please check manufacture’s seal is in good condition.
3)Meter should be installed indoor or on the fire-proof wall outdoor, the height is about 1.8m, no corrosive gas in the air.
4)Meter should follow the connection diagram, using copper wire or copper terminal clamp for input.
5)Main terminal connection
6) Main and auxiliary terminal connection
Main terminal connection follows Figure 2, 1 as L In, 2 as L Out, 3
as N In, 4 as N Out. There are 4 auxiliary terminals on the top of
main terminal, in which 7 & 8 as measure pulse output.
LoRaWAN communication interface:
Using LoRaWAN communication for meter reading and parameter
setting. When meter reading, remote meter data transmission
software provided by our company can be used for meter reading and
parameter setting. It is also possible to design a software and
hardware system that fully complies with the protocol requirements
for meter reading and parameter setting according to the power
industry standard DL/T 645-2007 (supporting part of the
communication protocol).
Please take attention to the following points when handle meter
reading and parameter setting:
a. Parameter setting, please just setting items which refers to the
certain meter.
b. LoRaWAN active upload data format:
