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SEN-HZ21WA G1/2” Water Flow Sensor – Nylon Flow Meter

SEN-HZ21WA G1/2” Water Flow Sensor – Nylon Flow Meter

₹299.00Price

💧 SEN-HZ21WA G1/2” Water Flow Sensor — Nylon Flow Meter (Technical Information)

🔍 Overview

The SEN-HZ21WA water flow sensor is a turbine-based liquid flow sensor designed to measure the flow rate of water in pipelines.

  • Measures:

    • Water flow rate (L/min)

  • Output:

    • Digital pulse signal

  • Type:

    • Hall-effect based flow sensor

👉 It is widely used for real-time water flow monitoring systems.

⚙️ Working Principle

🌊 Turbine + Hall Effect Sensing

1. 🔄 Fluid Flow Movement

  • Water enters the sensor body

  • Rotates an internal turbine (impeller)

2. 🧲 Magnetic Detection

  • A magnet attached to the turbine rotates

  • A Hall-effect sensor detects rotation

3. 📡 Pulse Generation

  • Each rotation produces electrical pulses

  • Pulse frequency is proportional to flow rate

📐 Flow Equation

F=10Q (±10%)F = 10Q \ (\pm 10\%)F=10Q (±10%)

  • F = frequency (Hz)

  • Q = flow rate (L/min)

👉 Higher flow → higher pulse frequency.

📊 Measurement Characteristics

  • Flow range: 1 to 30 L/min

  • Start flow: ~low flow threshold (~1 L/min typical)

  • Accuracy: ±10% (approx.)

  • Pulse output relation:

    • ~516 pulses per liter

⚡ Electrical Characteristics

  • Operating voltage: ~5V DC

  • Current consumption: ≤15 mA

  • Output:

    • Digital pulse (square wave)

🔗 Output Interface

Pulse Output

  • Each pulse corresponds to a small volume of water

  • Microcontroller counts pulses to calculate:

    • Flow rate

    • Total volume

Signal Characteristics

  • TTL-level output

  • Duty cycle ~50%

🧠 Internal Structure

  • Nylon body housing

  • Turbine (rotor/impeller)

  • Embedded magnet

  • Hall-effect sensor

  • Signal conditioning circuit

👉 Sensor electronics are isolated from water path.

🔧 Mechanical Characteristics

  • Thread size: G1/2” (standard pipe fitting)

  • Material: Nylon (PA66)

  • Max pressure: ~1.75 MPa

  • Fluid type: Clean water (non-corrosive)

🔄 Operating Behavior

✔ Flow Measurement

  • Flow increases → turbine spins faster → more pulses

✔ Real-Time Monitoring

  • Continuous pulse output enables:

    • Instant flow calculation

    • Total volume tracking

✔ Low Pressure Start

  • Can operate at relatively low water pressure

🌡️ Environmental Characteristics

  • Suitable for:

    • Water systems (≤60°C typical)

  • Not suitable for:

    • High-temperature liquids

    • Corrosive fluids

⚠️ Limitations

  • Accuracy depends on:

    • Flow stability

    • Calibration

  • Sensitive to:

    • Air bubbles

    • Debris in water

  • Not suitable for:

    • Very low flow rates (below threshold)

  • Measures:

    • Flow only (not pressure or level)

🔌 Typical Pin Configuration

  • Red → VCC (5V)

  • Black → GND

  • Yellow → Pulse output

🧩 Functional Role

The sensor acts as a:

  • Water flow rate sensor

  • Volume measurement device

  • Digital pulse-based flow meter

🏁 Summary

The SEN-HZ21WA G1/2” Nylon Flow Sensor is a turbine-based flow measurement device that:

  • Uses Hall-effect sensing for pulse generation

  • Measures 1–30 L/min water flow

  • Provides digital pulse output

  • Supports real-time flow and volume calculation

  • Is designed for pipeline integration with standard G1/2 threads

Quantity
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