NB-IoT Direct Reading Remote Water Meter (DN15~DN25)

Introduction

NB IoT IoT water meter is an intelligent water meter used for remote meter reading and control. It communicates remotely with servers through narrowband IoT, eliminating the need for intermediate transmission devices such as

collectors or concentrators, simplifying equipment installation and debugging work, and achieving automatic remote meter reading of water meter usage. While saving manpower, material resources, and financial resources, it effectively improves production efficiency.

Features

Adopting telecom industrial grade SIM card (patch type), anti vibration (20HZ~2000HZ), read and write frequency (20000 times);
Remote reading: Proactively report readings on a periodic basis;
Prepaid: Supports prepaid and pre order quantities;
Warning system: Alarm prompts such as battery undervoltage, abnormal measurement, and prepaid usage reaching threshold;
Different emergency water usage can be set according to different users;
Water pricing: Water pricing can be set at different benchmark prices and prices based on user categories and usage;
Ultra long life battery: Standard ER26500 battery+SPC1520 battery capacitor combination power supply for more than 6 years;
Internal/External Antennas: Supports internal/external antennas, stable and reliable signals, full coverage without blind spots;
Adopting a low-power design, the chip automatically wakes up and enters sleep mode after reporting data, energy- efficient.

Main Parameter

Category	Parameter	Category	Parameter
Whole machine power consumption	Average current ≤ 3uA in non meter reading state	Support the protocol	CJ/T188-2004
Input voltage	3.6V	Installation environment	E1 Class B
Working temperature	5℃-70℃	Frequency range	NB-loT(B3/B5/B8)
IP Grade	IP68	Battery life	6 years (reported once a day)

Technical Parameter

Nominal diameter (mm)	DN15	DN20	DN25
Length(mm)	165mm	195mm	225mm
Connecting thread D	G1/4B	G1B	G11/4B
Overload flow Q4(m/h)	3.125m³/h	5m³/h	7.875m³/h
Common flow Q3(m/h)	2.5m³/h	4m³/h	6.3m³/h
Boundary flow Q2(m/h)	0.04m³/h	0.064m³/h	0.1008³/h
Minimum flow Q1(m³/h)	0.025m³/h	0.04m³/h	0.063m³/h
Q3/Q1	80、100、160
Working pressure	≤1.0MPa
Pressure loss level	△P63
Temperature level	T30(cold water),T90 (hot water)
Relative humidity of the environment	≤93%
Dielectric strength	5000V