NB Smart Meter

Introduction:

NB smart meter is a measurement product of the new generation narrowband IoT transmission technology, which is standardized by China and promoted globally, compared to traditional 2G networks. NB smart meters have outstanding characteristics such as wide coverage, low power consumption, low cost, and strong signal. It is particularly suitable for use in energy management fields such as water, electricity, and gas, where continuous automatic data transmission, low power consumption, and long-term monitoring are required. It can help governments, enterprises, and households achieve comprehensive collection, transmission, and analysis of terminal device data.

NB Smart Meter Technical Parameters:

(1) Reference voltage: 3 × 220/380VAC.

(2) State Grid three-phase meter reference current: 5 (60) A, 10 (100) A.

(3) The reference current of the three-phase meter in the southern grid is 5 (80).

(4) Reference frequency: 50Hz.

(5) Reference temperature: 23 ℃, relative humidity: 45% -75%.

(6) Atmospheric pressure: 63.0kPa-106.0kPa.

(7) Accuracy level: 1.0 level.

(8) Starting current: The electric energy meter can start and continuously record when the load current is 0.004Ib (1.0 level meter) under the conditions of reference voltage, rated frequency, and cos φ=1.

(9) Submerging: When there is no current in the circuit of the electric energy meter and the voltage applied to the circuit is 115% of the rated value, within the time specified in GB/T17215-1998, the output pulse generated by the test output terminal of the electric energy meter shall not exceed one.

(10) Environmental conditions: Standard operating temperature is -10 ℃ to+45 ℃ (indoor energy meter)

a: -20 ℃ to+55 ℃ (outdoor energy meter);

b: The maximum working temperature is -20 ℃ to+55 ℃ (indoor energy meter);

c: -25 ℃ to+55 ℃ (outdoor energy meter).

(11) The data in the table can be saved for at least 10 years in the event of a power outage; The IC card has been inserted more than 20000 times.

NB Smart Meter Execution Standard:

(2.1) Requirements for pulse voltage test and AC voltage test specified in GB/T17215-1998;

(2.2) Fast transient burst test requirements specified in GB/T17626.4;

(2.3) Lightning surge test requirements specified in GB/T17626.5;

(2.4) DL/T 645-2007 "Communication Protocol for Multi functional Energy Meters".

The price reference for NB smart meters is as follows:

(1) 5 (60) A: From 450 yuan to 680 yuan per unit, (note): The following prices are for reference only. Please call for more information.

(2) 10 (100) A: From 850 yuan to 1350 yuan per unit, (note): The following prices are for reference only. Please call for more information.

Shenzhen Yima Xinnuo Water Meter Manufacturer advocates the management philosophy of "people-oriented, respecting knowledge, daring to innovate, and constantly learning", and takes "integrity, efficiency, and enthusiasm" as the foundation of the company's development. We hope that our abundant customer resources and high-quality and enthusiastic service can satisfy you.