ZQ-01 Water Flow Sensor 0.5-8LPM G½"-Shandong iSentrol Technology

Product Features:

This product is lightweight, compact, and easy to install.
The impeller is inlaid with stainless steel beads for permanent wear resistance.
The sealing ring has an upper and lower force-bearing structure to prevent water leakage.
The Hall element is imported from Germany and encapsulated with potting glue to prevent water ingress and aging.

All raw materials meet the ROSH testing standards.

I. Product Introduction:

The water flow sensor mainly consists of a plastic valve body, a water flow rotor assembly, and a Hall sensor. It is installed at the water inlet of the water heater to detect the incoming water flow. When water passes through the water flow rotor assembly, the magnetic rotor rotates, and its rotational speed changes with the flow rate. The Hall sensor outputs corresponding pulse signals, which are fed back to the controller. The controller then judges the water flow rate and makes adjustments.

II. Precautions for Use:

It is strictly prohibited to subject it to severe impacts and chemical corrosion.
Do not throw or bump it.
It can be installed horizontally or vertically.

The medium temperature should not exceed 100°C.

III. Output Waveform Diagram:

Duty Cy = 40% - 60%

V. Technical Parameters

Application Range: Suitable for fully automatic gas water heaters

Product Material	Shell	PVDF
	Shaft	Ceramic

Basic Parameters	1. Minimum rated working voltage	DC 3.5V - 24V
	2. Maximum operating current	15mA (DC 5V)
	3. Operating voltage range	DC 3.5 - 24V
	4. Load capacity	≤ 10 mA (DC 5V)
	5. Operating temperature range	≤ 80°C
	6. Operating humidity range	35% - 90%RH (without frost)
	7. Allowed pressure resistance	Below 1.75Mpa water pressure
	8. Storage temperature	-25 - +80°C
	9. Storage humidity	25% - 95%RH
Technical Requirements	1. Output pulse high level	> DC 4.5 V (input voltage DC 5 V)
	2. Output pulse low level	< DC 0.5 V (input voltage DC 5 V)
	3. Accuracy (flow - pulse output)	0.5 - 8L/min (5%
	4. Output pulse duty cycle	50 ± 10%
	5. Output rise time	0.04μS
	6. Output fall time	0.18μS
	7. Flow - pulse characteristic	Horizontal test pulse frequency (Hz) = [13 * Q] ± 5% (horizontal test) (Q is the flow rate L/min)
	8. Shock resistance	When the product is packaged and dropped freely from a height of 50cm in the X, Y, Z directions onto a concrete surface, there is no abnormality, and the accuracy change is within 5%.
	9. Insulation resistance	The insulation resistance between the Hall sensor and the copper valve body is above 100MΩ. (DC 500V)
	10. Heat resistance	After being placed in an environment of 80 ± 3°C for 48h and returning to room temperature for 1 - 2h, there is no abnormality, and the parts have no cracks, relaxation, expansion, deformation, etc., and the accuracy change is within 10%.
	11. Cold resistance	After being placed in an environment of -20 ± 3°C for 48h and returning to room temperature for 1 - 2h, there is no abnormality, and the parts have no cracks, relaxation, expansion, deformation, etc., and the accuracy change is within 10%.
	12. Moisture resistance	After being placed in an environment of 40 ± 2°C and relative humidity 90% - 95%RH for 72h and taken out, the insulation resistance is above 1MΩ.
	13. Pull-out strength	When a 10N pulling force is applied to the lead wire for 1 minute, there is no loosening or breaking, and the performance remains unchanged.
	14. Durability	At room temperature, 0.1MPa water pressure is introduced from the water inlet, with a cycle of 1S on and 0.5S off. After 300,000 tests, there is no abnormality.

1.产品特点:

本产品外观轻巧灵便,体积小,便于安装.

叶轮内部镶有不锈钢珠,永远耐磨.

密封圈采用上,下受力的结构永不漏水.

霍尔元件采用德国进口,并且用灌封胶封装,

防止进水,永不老化.

所有原材料均有符合ROSH检测标准

2. 产品简介：

水流量传感器主要由塑料阀体、水流转子组件和霍尔传感器组成。

它装在热水器进水端，用于检测进水流量，当水通过水流转子组件时，

磁性转子转动并且转速随着流量变化而变化，霍尔传感器输出相应脉冲

信号，反馈给控制器，由控制器判断水流量的大小，进行调控。

3. 使用注意事项

严禁剧烈冲击以及化学物质的侵蚀。

严禁抛掷或碰撞。

水平或者垂直安装都可以

介质温度不宜超过1000 C。

适用范围:		适用于全自动燃气热水器
基本参数	1、最低额定工作电压	DC3.5V-24V
	2、最大工作电流	15mA（DC 5V）
	3、工作电压范围	DC3.5～24V
	4、负载能力	≤10 mA （DC 5V）
	5、使用温度范围	≤80℃
	6、使用湿度范围	35%～90%RH（无结霜状态）
	7、允许耐压	水压1.75Mpa以下
	8、保存温度	-25～+80℃
	9、保存湿度	25%～95%RH
技术要求	1、输出脉冲高电平	>DC 4.5 V (输入电压 DC 5 V)
	2、输出脉冲低电平	<DC 0.5 V (输入电压 DC 5 V)
	3、精度（流量--脉冲输出）	0.5～8L/min±5%
	4、输出脉冲占空比	50±10%
	5、输出上升时间	0.04μS
	6、输出下降时间	0.18μS
	7、流量-脉冲特性	水平测试脉冲频率(Hz)=[ 13*Q]±5%(水平测试) (Q为流量L/min )
	8、耐冲击	产品包装好,从50cm高度X、Y、Z方向自由落下至混凝土表面无异常, 精度变化5%以内。
	9、绝缘电阻	霍尔传感器与铜阀体之间的绝缘电阻100MΩ以上。(DC 500V)
	10、耐热性	在80±3℃环境中放置48h , 返回常温1-2h无异常,且零件无裂纹、松驰、膨胀、变形等现象，精度变化10%以内。
	11、耐寒性	在-20±3℃环境中放置48h , 返回常温1-2h无异常,且零件无裂纹、松驰、膨胀、变形等现象，精度变化10%以内。
	12、耐湿性	在40±2℃,相对湿度90%～95%RH环境中放置72h取出后 , 绝缘电阻1MΩ以上。
	13、拉拔强度	在引出线上施加1分钟10N的拉力，无松脱、拉断现象，且性能无变化。
	14、耐久性	在常温下,从进水口通入0.1MPa水压,以接通1S,断开0.5S为一循环, 试验30万次无异常。

Plastic Flow Sensor

ZQ-01 Water Flow Sensor 0.5-8LPM G½"

Product Features:

I. Product Introduction:

II. Precautions for Use:

III. Output Waveform Diagram:

V. Technical Parameters