YF-S401-0207 Hall Effect Water Flow Sensor
Product Overview
YF-S401-0207 7mm Port
High-precision Hall effect flow sensor with a stable impeller measurement structure, suitable for flow measurement of water and low-concentration liquids. Features a high-strength POM valve body with excellent consistency and long-term stability. Supports 7mm port, flow range 0.5~3L/min, clear pulse output signal, ideal for PLCs, controllers, and metering systems.
Product Features
Hall effect impeller design, pulse output proportional to flow rate, accuracy up to ±2%
High-strength POM valve body, stable measurement of various clean liquid media
Industrial-grade safety design, supports DC3.5-24V wide voltage input, high insulation resistance, excellent anti-interference performance
Optimized inner/outer diameter and thread length design, secure installation, reliable sealing
Product Images
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Technical Specifications
| Model | YF-S401-0207 |
|---|---|
| Port Size | 7mm |
| Flow Range | 0.5~3L/min |
| Applicable Media | Water, low-concentration liquids |
| Withstand Pressure | ≤0.8MPa |
| Operating Voltage | DC3.5~24V |
| Valve Body Material | POM |
| Insulation Resistance | >100MΩ |
| Accuracy | ±2% |
| Flow Pulse Characteristic | F=(90×Q)±2%, F is frequency, Q is L/min, i.e. 5400 pulses per liter |
| Output Pulse High Level | >DC4.7V (input voltage DC5V) |
| Output Pulse Low Level | <DC0.5V (input voltage DC5V) |
| Output Pulse Duty Cycle | 50%±10% |
| Thread Length | 14mm |
| Inner/Outer Diameter | Inlet inner diameter 2mm, outer diameter 7.2mm |
Notes on Specifications
1. The values listed are for reference only.
2. The number of pulses per liter may vary depending on the medium and installation conditions.
3. It is recommended to calibrate the number of pulses per liter based on the complete installation.
Usage Tips
Ensure there is no rapid pulsation in the medium
Ensure there is no reverse pressure surge
Ensure there is no air in the system
Minimize pressure loss as much as possible
Pay attention to the installation position of the flow meter
The minimum/maximum flow rate should be within the linear range of the selected flow meter
Clean the system regularly
Avoid current peaks
Incorrect wiring of power positive, signal line, and ground will damage the flow meter
Do not apply mechanical load to electrical contacts
Keep electrical contacts away from moisture
Avoid stray interference through cables (EMI) (do not route cables parallel to high-current loads)
Precautions
To prevent particles and debris from entering the product, a filter screen must be installed at the water inlet.
The product must be installed indoors or inside equipment. Do not expose it to outdoor, humid, or high-temperature environments for extended periods. Avoid installation in vibrating or shaking environments, as this may affect measurement accuracy.
When magnetic materials or materials that generate magnetic force approach the product, its characteristics may change.
Do not disassemble the product. Any product that has been disassembled is not covered by warranty.
If you have not used this type of sensor before, direct substitution may cause compatibility issues. Please take note.
Do not blow high-speed air into this product, as it will damage internal components, causing inaccurate flow characteristics or no output.
We reserve the right to update and improve products for technological advancement.
Applications
Gas water heaters, electric water heaters, instant water heaters, wall-hung boilers, solar water heaters, heat pump water heating systems, washing machines, dishwashers, smart bathroom equipment, water purifiers, water dispensers, boiling water dispensers, vending machines, water control systems, IC card water meters, smart water meters, hot water meters, campus card water systems, bathroom water control systems, industrial cooling systems, circulating water systems, boiler systems, central air conditioning, refrigeration equipment, water treatment equipment, chemical dosing equipment, agricultural irrigation systems, chemical metering equipment, pharmaceutical equipment, food and beverage processing equipment, medical equipment, car wash equipment, swimming pool circulation systems, smart mechanical equipment, instruments and meters
Company Images
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SEO Information
| Keywords | YF-S401-0207 Hall effect water flow sensor,7mm port water flow meter,POM body flow sensor,miniature water flow sensor |
|---|---|
| Page Description | YF-S401-0207 Hall effect water flow sensor, POM valve body, 7mm port, flow range 0.5~3L/min, withstand pressure ≤0.8MPa, operating voltage DC3.5~24V, accuracy ±2%, suitable for clean liquid flow measurement. |
| Tags | YF-S401-0207|Hall effect flow sensor|water flow meter|7mm port|POM body |
| Static Page Name | yf_s401_0207_hall_effect_water_flow_sensor |