Návod k obsluze senzoru průtoku vody DIGITEN G1/2" (model FL408-1ZJ)

1. Úvod

This instruction manual provides essential information for the proper installation, operation, and maintenance of the DIGITEN G1/2" Water Flow Sensor, Model FL408-1ZJ. This sensor is designed for accurate measurement of water flow rates in various applications, including water heaters, coffee machines, water purifiers, and reverse osmosis systems. Please read this manual thoroughly before use to ensure optimal performance and safety.

2. Konec produktuview

The DIGITEN FL408-1ZJ is a compact, food-grade Hall effect water flow sensor. It features G1/2" BSPT male threads for easy integration into plumbing systems and provides a pulse signal output proportional to the water flow rate.

Obrázek 2.1: DIGITEN G1/2" Water Flow Sensor (Model FL408-1ZJ). This image displays the sensor's main body, G1/2" threaded connections, and the attached three-wire cable for power and signal output. The label on the sensor indicates the model number, working range, and basic wiring instructions.

Obrázek 2.2: Nahoru view of the DIGITEN Water Flow Sensor. This image shows the sensor from above, with its 1.2-meter cable coiled around it, terminating in an SM2.54 3P connector. The central label with specifications is clearly visible.

3. Specifikace

4. Instalace a nastavení

Follow these steps for proper installation of the water flow sensor:

1. Místo montáže: Choose a location in your water line where the sensor can be easily accessed for wiring and maintenance. Ensure the sensor is installed in the correct flow direction.
2. Směr toku: The sensor has an arrow molded into its body indicating the direction of water flow. Ensure the sensor is installed so that water flows in the direction of this arrow.

Obrázek 4.1: Dno view of the sensor, highlighting the molded arrow indicating the required water flow direction for accurate measurement.
3. Připojení závitu: The sensor features G1/2" BSPT male threads. Connect it to compatible G1/2" female threads in your plumbing system.
4. těsnění: For a watertight seal, apply appropriate thread seal tape (e.g., PTFE tape) to the sensor's threads before connecting. If connecting to NPT threads, thread seal tape is essential to prevent leaks.
5. Zabezpečené připojení: Hand-tighten the connections, then use a wrench for a final snug fit. Avoid over-tightening, which can damage the threads or sensor body.

5. Schéma zapojení

The DIGITEN FL408-1ZJ water flow sensor has a three-wire connection. Connect the wires as follows:

• Červený drát: Connect to VCC (+) (DC 5-18V power supply).
• Černý drát: Connect to GND (-) (Ground).
• Žlutý drát: Connect to Signal Output (Pulse signal to your microcontroller or data acquisition system).

Zajistěte napájení objtage is within the specified range of DC 5-18V. The maximum current should not exceed 10 mA.

6. Principy fungování

This sensor operates on the Hall effect principle. Inside the sensor, a small turbine rotates as water flows through it. A magnet attached to the turbine passes a Hall effect sensor, generating a series of electrical pulses. The frequency of these pulses is directly proportional to the water flow rate.

The output frequency (F) can be calculated using the formula:

F = 7.5 * Q (L/min) ± 2%

Kde:

• F is the output pulse frequency in Hz.
• Q is the water flow rate in Liters per Minute (L/min).

This means for every liter of water that passes through the sensor, approximately 450 pulses are generated (450 pulses/liter).

The output signal is a square wave, which can be easily read by microcontrollers like Arduino or Raspberry Pi to determine the flow rate.

7. Údržba

The DIGITEN FL408-1ZJ water flow sensor is designed for durability and minimal maintenance. However, adhering to the following guidelines can help ensure its longevity and accurate performance:

• Pravidelná kontrola: Periodically check the sensor and its connections for any signs of leaks or physical damage.
• Čistota: While the sensor is designed for water, excessive sediment or debris in the water can potentially affect the turbine's rotation. If flow readings become erratic, consider inspecting the sensor for blockages.
• Podmínky prostředí: Ensure the sensor operates within its specified temperature and humidity ranges to prevent damage.
• Integrita kabeláže: Zkontrolujte, zda jsou všechna elektrická připojení bezpečná a bez koroze.

8. Řešení problémů

If you encounter issues with your DIGITEN water flow sensor, consider the following troubleshooting steps:

• No Signal Output:
  • Check power connections (Red to VCC, Black to GND) and ensure the power supply is within DC 5-18V.
  • Verify that water is actually flowing through the sensor.
  • Confirm the sensor is installed in the correct flow direction (indicated by the arrow).
  • Inspect the yellow signal wire for continuity and proper connection to your reading device.
• Nepřesná čtení:
  • Ensure the flow rate is within the specified range of 1-30 L/min.
  • Check for air bubbles or turbulence in the water line, which can affect accuracy.
  • Verify that your microcontroller's pulse counting logic correctly implements the F = 7.5 * Q formula.
  • Inspect the sensor for any internal blockages or debris that might impede the turbine's rotation.
• Netěsnosti v místech spojení:
  • Ensure sufficient thread seal tape was applied.
  • Check if connections are adequately tightened without over-tightening.
  • Verify compatibility between G1/2" BSPT sensor threads and your plumbing system's threads.

9. Záruka a podpora

Specific warranty terms for the DIGITEN G1/2" Water Flow Sensor (Model FL408-1ZJ) are typically provided by the retailer or manufacturer at the time of purchase. Please refer to your purchase documentation or contact your seller for detailed warranty information.

For technical support or further inquiries, please contact the DIGITEN customer service or your product supplier.