I. Product Overview
The Y04 miniature flow sensor utilizes the Hall effect principle, generating pulse signals through the rotation of an internal impeller. The product features high precision, high reliability, and long lifespan. The housing is made of food-grade PC material, making it pressure-resistant and waterproof. Its compact structure and easy installation make it widely applicable for flow monitoring and control of various small household appliances and industrial fluids.
II. Core Features
- Precise measurement:accurate flow detection and stable pulse output.
- High protection and durability:pressure resistant and waterproof.
- Safety and hygiene:Made with food-grade contact materials.
- Energy-saving and environmentally friendly:Low power consumption, meeting environmental protection requirements.
- High reliability:Stable internal structure and long lifespan.
III. Application Scenarios
- Water purifier/water dispenser
- Coffee machine/humidifier
- Dishwasher/Water Heater
- Other automated equipment that requires traffic monitoring
IV. Specifications
| Parameter name | Parameter value / condition |
| Connector specifications | C3 white connector – 3P*330 (cable length can be customized) |
| Wiring method | Red: Connect to power (+); Black: Connect to power (-); Yellow: Signal output |
| Water pressure resistance | ≤ 0.5 MPa |
| Pulse characteristics | [164*Q-5] ±5% (Q = L/MIN) |
| Working flow range | 0.3 ~ 5 L/MIN |
| Insulation resistance | ≥ 100 MΩ |
| Operating voltage | 5 ~ 24 VDC |
| Output pulse duty cycle | 50% ± 10% |
| Output signal (DC 5V) | Output pulse high level: > DC 4.6V
Output pulse low level: < DC 0.5V |
| Service life | VCC=DC5V, no abnormalities observed after 100,000 switching cycles. |
V. Flow rate and pulse characteristic data table
Instantaneous pulse frequency characteristic parameter [164*Q-5] ±5%
| Flow rate (L/MIN) | 0.2 | 0.4 | 0.6 | 0.8 |
| Reference parameters (Hz) | 27.80 | 59.20 | 93.90 | 118.58 |
Cumulative pulse flow characteristic parameters
| Flow rate (L/MIN) | 0.3 | 0.4 | 0.6 | 0.8 |
| g/Pulse | 0.2087 | 0.1193 | 0.1079 | 0.1107 |
| Pulse/L | 5299 | 8458 | 9321 | 9095 |
(Note: Specific data may have slight errors due to actual working conditions. Please refer to actual tests for accuracy.)
VI. Installation and Usage Instructions
- Water flow direction:Please pay close attention to the “water inlet direction” (indicated by the arrow) marked on the outer casing to ensure that the water flow direction is correct and that it is not installed in reverse.
- Installation environment:Avoid installation in a strong magnetic field environment to prevent interference with internal magnetic components; also avoid direct sunlight to prevent aging of the casing material.
- Pipeline connection:Pipeline connections must be properly sealed to prevent leakage; do not use excessive force during connection to avoid damaging the sensor body.
- Electrical connection:Please strictly follow the wiring definition (red positive, black negative, yellow signal) to make electrical connections to prevent damage to the sensor caused by reversing the positive and negative terminals.
