Tubular ultrasonic flow meter KLD-3000D-Dalian Kelide Technology Co., Ltd

Tubular ultrasonic flow meter KLD-3000D

This series of products complies with the national standard of the People’s Republic of China, GB/T 778-2018, titled \"Meters for drinking cold water and hot water.\" The factory testing is carried out in accordance with the national metrological testing specification of the People’s Republic of China, JJG162-2009, which deals with cold water meters. Ultrasonic water meters are low-power, intelligent industrial water meters that utilize time-difference measurement technology, pulse technology, signal digital processing technology, and error correction techniques. They have no mechanical moving parts, do not require any parameter settings, can be installed at any angle, are less prone to damage, and require minimal maintenance. They feature built-in data storage and remote data transmission capabilities; the data measured on-site can be transmitted to a control room via wireless networks. This approach effectively solves the problems associated with traditional mechanical water meters, such as high starting flow rates, failure to measure low flow volumes, and difficulties in conducting remote, real-time readings.

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These products comply with the national standard of the People’s Republic of China, GB/T 778-2018, which deals with water meters for cold and hot water. The inspection process at the time of manufacturing is carried out in accordance with the national metrological standards of the People’s Republic of China, JJG162-2009, specifically for cold water meters. Ultrasonic water meters are low-power, intelligent industrial water meters that utilize time-difference measurement technology, pulse technology, signal digital processing technology, and error-correction techniques. They have no mechanical moving parts, do not require any parameter settings, can be installed at any angle, are less prone to damage, and require minimal maintenance. They also feature built-in data storage capabilities and the ability to transmit data over long distances; the data measured on-site can be sent to a control room via wireless networks. This approach effectively solves the problems associated with traditional mechanical water meters, such as high starting flow rates, failure to measure low flow rates, and difficulties in performing remote, real-time readings.

产品特点Product features

• 单声路、多声路可选。• Single-channel or multi-channel options available.

• Resistant to high water flow; it can operate stably at high flow rates for extended periods of time, making it suitable for use in firefighting.

• It features high precision, low starting flow rate, low power consumption, good stability, a wide measurement range, and a long service life.

• It features multiple output options; it can be connected to NB-lOT/4G/GPRS/GSM wireless networks to form a monitoring system.

• It features a duct-style design that eliminates pressure losses and mechanical moving parts, thereby reducing the electrical energy consumption of the water pump and lowering the water supply costs for businesses.

• A temperature sensor is used to measure the temperature of the water flowing in and out of the heating (cooling) pipelines, allowing for real-time monitoring of the heat (cold) output; this enables the measurement of the amount of heat (cold) supplied.

• It makes use of low-power technology and is powered by environmentally friendly lithium batteries; the battery’s lifespan ranges from 5 to 10 years. Data is uploaded once a day, and if the frequency of uploads increases, the battery’s lifespan will decrease accordingly.

• The RS485 interface can be added to meet the various needs of users, enabling remote meter reading for easier centralized management; in case of abnormalities in the pipeline system, it will automatically report such issues.

技术参数Technical parameters

数据存储Data storage	断电保护功能，每月存储功能Power failure protection feature, monthly storage function
供电方式Power supply method	3.6V lithium battery; external DC9-24V power supply; 4-20mA two-wire power supply; solar power supply; the default option is a 3.6V lithium battery (please specify other power supply options in advance).
操作方式Operation method	触摸按键Touch button
温度等级Temperature rating	T30, T50, T70, T90 are available; the default option is T30.
数据通讯Data communication	M-BUS接口M-BUS interface	188通讯协议188 Communication Protocol
	RS485接口RS485 interface	Baud rates: 2400bps, 4800bps; 9600bps is also an option; the default value is 2400bps, using the Modbus-RTU protocol.
	4-20mA输出4-20mA output	RS485 and 4-20mA outputs cannot be used simultaneously; only one of them can be selected.
电池寿命Battery life	≥15年≥15 years
压力损失Pressure loss	在额定流量下 s25kPaAt the rated flow rate, 25 kPa
适用管材Applicable pipe materials	Uniform and dense pipes such as carbon steel, stainless steel, cast iron, copper, PVC, aluminum, and fiberglass can have a lining.
测量介质Measurement medium	Water, seawater, sewage, alcohol, and various oils are all single, uniform, stable liquids that can transmit ultrasonic waves.
防护等级Protection level	IP68 (GB4208); higher-grade products can be customized to meet users’ requirements.
压力等级Pressure rating	1.0MPa, 1.6MPa, 2.5MPa are available; the default value is 1.6MPa.
管体材质Tube material	Carbon steel, stainless steel, and ductile iron are available; carbon steel is the default option.
性能Performance	双声道，四声道Stereo, 4-channel
公称直径nominal diameter	DN40mm~DN400mm
工作环境温度范围Operating temperature range	-30~180℃-30~180°C
测量周期Measurement period	Measurement mode: 1 time per second; Calibration mode: 4 times per second
直管段Straight pipe section	The sensor installation location must meet the requirements of 5D upstream and 2D downstream.
上游流场敏感度等级Upstream flow field sensitivity level	U5
下游流场敏感度等级Downstream flow field sensitivity level	D2
电磁兼容性等级Electromagnetic compatibility level	E2
环境等级Environmental grade	A级环境（+5C~+55C）Class A environment (+5C to +55C)
气候和机械环境安装等级Climate and mechanical environmental installation rating	C级Class C

产品选型Product selection

工艺
焊接管
Process
Welded pipes

管体材质
碳钢（标准）
Pipe material
Carbon steel (standard)

不锈钢stainless steel

公称直径
DN40mm~DN400mm
Nominal diameter
DN40mm~DN400mm

声道数量
单声道
Number of channels
Mono

Stereo
Quadraphonic
Pressure
1.6MPa (standard)
2.5MPa
Output interface
M-BUS (standard)
RS485
4-20mA
Output method
M-BUS/188 communication protocol (standard)