NB electric meter

Introduction:

The NB meters produced and sold by Yima Xinnuo are developed using modern advanced microelectronics technology, computer technology, electrical measurement technology, and data communication technology. And it has NB-IOT wireless data upload function, which is the new generation of electric energy metering device in our company's IoT intelligent device technical specifications. It has extremely high cost-effectiveness and can directly replace conventional measuring and indicating instruments, energy metering instruments, and related auxiliary units. It can also be used as a front-end component of power monitoring systems to achieve remote data acquisition and control.

NB meter technical parameters:

Accuracy level: Active power: 0.5 level, reactive power: 1 level.

Reference voltage Un: 3 × 220V/380V (three-phase four wire).

[1.3] Working voltage: AC220V or DC48V (see meter label for details).

【 1.4 】 Transformer connection; Direct entry type.

Reference frequency: 50Hz.

Power consumption: Each phase voltage circuit: ≤ 1.5W, 2VA; Each phase current circuit: ≤ 1VA.

[1.7] Working temperature: -25 ℃ to+45 ℃.

Transportation and storage temperature: -40 ℃ to+70 ℃.

Clock accuracy: 25 ℃± 2 ℃≤ 0.1S/Day.

【 1.10 】 Communication method: NB IoT (Narrow Band Internet of Things, NB IoT)

Introduction to the functional advantages of NB electric meters:

【 2.1 】 NB IoT remote meter reading not only inherits the GPRS remote meter reading function, but also has a massive capacity. The communication user capacity of the same base station is 10 times that of GPRS remote meter reading;

【 2.2 】 With lower power consumption, the standby time of NB IoT terminal modules can last for more than ten years under the same usage environment conditions;

New technology signals have stronger coverage (can cover indoor and underground areas);

【 2.4 】 Lower module cost, instrument direct transmission platform, eliminating network layer devices such as gateways and collectors. NB-IOT wireless connection, simple network configuration, saving 485 wiring and time costs;

NB IoT has the characteristic of low power consumption, which can be standby for ten years with only two AA batteries, greatly reducing maintenance costs in the later stage;

【 2.6 】 Super strong signal coverage, which can cover indoor and underground areas, ensuring signal stability;

【 2.7 】 Massive connections to meet the simultaneous connection of multiple terminals in smart homes.

NB electricity price reference:

1. Single phase NB electricity meter: 350 to 550 yuan per unit.

2. Three phase four wire NB electricity meter: 750 yuan to 1200 yuan per unit.

3. Rail mounted NB electricity meter: 220 to 420 yuan per unit.

Note: The above prices are market reference prices, and specific prices need to be consulted with the business quotation.