1. ຜະລິດຕະພັນເກີນview
The DIGITEN G3/8 Water Flow Sensor (Model FL-308T) is a Hall effect flowmeter designed for precise liquid fluid measurement. It is suitable for various applications requiring flow monitoring, such as water heaters, water dispensers, water purifiers, and irrigation systems. This sensor provides a pulse signal output proportional to the water flow rate.
Figure 1: DIGITEN G3/8 Water Flow Sensor (Model FL-308T)
ຄຸນນະສົມບັດທີ່ສໍາຄັນ:
- ການອອກແບບທີ່ມີນ້ໍາຫນັກເບົາແລະຫນາແຫນ້ນ.
- Stable performance with low water pressure start.
- Integrated Hall effect sensor for electrical pulse output.
- Constructed from food-grade plastic for safety and reliability.
- Waterproof, heat-resistant, pressure-resistant, and cold-resistant properties.
2. ຂໍ້ມູນຈໍາເພາະ
The following table details the technical specifications for the DIGITEN G3/8 Water Flow Sensor:
| ພາລາມິເຕີ | ມູນຄ່າ |
|---|---|
| ໝາຍເລກຕົວແບບ | FL-308T |
| ການເຮັດວຽກ Voltage | 3-24V ຊິງຕັນດີຊີ |
| ຂອບເຂດການໄຫຼ | 0.3-10 ລິດ/ນາທີ |
| ປັດຈຸບັນສູງສຸດ | 1.5 mA (DC 5V) |
| ອຸນຫະພູມປະຕິບັດການ | 0-80°C |
| ຄວາມຊຸ່ມຊື່ນປະຕິບັດການ | 35%-90% RH |
| ຊ່ວງຄວາມກົດດັນ | 0.1-0.8 MPa |
| ອຸນຫະພູມການເກັບຮັກສາ | -25-80 ອົງສາ |
| ຄວາມຊຸ່ມຊື້ນ | 25%-95% RH |
| Output Waveform | Square Wave, Pulse Signal |
| Pulse Constant (F) | F = 23 * Q (L/Min) ±2% |
| ຂະໜາດກະທູ້ | G3/8 inch (BSP) |
| ວັດສະດຸ | Brass (connector), Plastic (body) |
| ຄວາມຍາວສາຍ | 15 ຊຕມ |
Figure 2: Sensor dimensions and key specifications
3. ການຕິດຕັ້ງແລະການຕິດຕັ້ງ
Proper installation is crucial for accurate readings and reliable operation of the water flow sensor.
3.1 ຄໍາແນະນໍາການສາຍ
The sensor features a 3-wire connection. Connect the wires as follows:
- ສາຍສີແດງ: VCC (+) - Connect to the positive power supply (3-24V DC).
- ສາຍດຳ: GND (-) - Connect to ground.
- ສາຍສີເຫຼືອງ: Signal Output - Connect to your microcontroller or reading device.
Figure 3: Sensor with wiring label
Figure 4: Sensor with electrical connector
3.2 ການເຊື່ອມຕໍ່ທໍ່
The sensor uses G3/8 inch BSP (British Standard Pipe) threads. If connecting to NPT (National Pipe Taper) threads, it is recommended to use thread seal tape to ensure a watertight connection.
Ensure the sensor is installed with the correct flow direction. An arrow indicating the flow direction is marked on the sensor body. Align this arrow with the direction of water flow in your system.
Figure 5: Flow direction indicator on the sensor body
3.3 ການພິຈາລະນາການຈັດວາງ
- Install the sensor in a section of pipe where the water flow is stable and free from turbulence.
- Avoid installing near pumps or valves that may cause sudden changes in flow or pressure.
- Ensure easy access for future maintenance or inspection.
4. ຫຼັກການດຳເນີນງານ
The DIGITEN G3/8 Water Flow Sensor operates on the Hall effect principle. Inside the sensor, a small turbine wheel rotates as water flows through it. A magnet is attached to this turbine, and a Hall effect sensor detects the magnetic field changes as the magnet passes by. Each rotation of the turbine generates an electrical pulse.
The frequency of these pulses is directly proportional to the water flow rate. The relationship is given by the formula: F = 23 * Q, ບ່ອນທີ່:
- F is the pulse frequency in Hz.
- Q is the flow rate in Liters per Minute (L/Min).
By measuring the pulse frequency, you can calculate the instantaneous water flow rate. The sensor outputs a square wave pulse signal, which can be easily read by microcontrollers or other digital input devices.
5. ບໍາລຸງຮັກສາ
The DIGITEN G3/8 Water Flow Sensor is designed for low maintenance. However, periodic checks can help ensure its longevity and accuracy.
- ການກວດກາປົກກະຕິ: Periodically check for any leaks at the connection points.
- ຄວາມສົມບູນຂອງການເຊື່ອມຕໍ່: Ensure electrical connections remain secure and free from corrosion.
- ກວດສອບສິ່ງເສດເຫຼືອ: If flow readings become erratic or stop, inspect the sensor for any debris that might be obstructing the turbine's rotation. If necessary, disconnect the sensor and gently flush it with clean water. Avoid using harsh chemicals or abrasive tools.
- ການເກັບຮັກສາ: If storing the sensor for an extended period, ensure it is clean, dry, and stored within the specified storage temperature and humidity ranges.
6. ການແກ້ໄຂບັນຫາ
If you encounter issues with your DIGITEN G3/8 Water Flow Sensor, consider the following troubleshooting steps:
6.1 No Signal Output
- ກວດສອບການສະຫນອງພະລັງງານ: Verify that the sensor is receiving the correct operating voltage (3-24V DC) and that the ground connection is secure.
- ກວດສອບສາຍໄຟ: Ensure all three wires (Red, Black, Yellow) are correctly connected to your system.
- Verify Flow: Confirm that water is actually flowing through the sensor. The sensor requires a minimum flow rate of 0.3 L/min to generate pulses.
- Internal Obstruction: If water is flowing but no pulses are detected, the internal turbine might be jammed by debris. Refer to the Maintenance section for cleaning instructions.
6.2 ການອ່ານບໍ່ຖືກຕ້ອງ
- ທິດທາງການໄຫຼ: Ensure the sensor is installed with the correct flow direction, aligning with the arrow on the sensor body.
- Stable Flow: Turbulent flow can affect accuracy. Try to install the sensor in a straight section of pipe away from elbows, valves, or pumps.
- Pulse Constant: Double-check your calculation using the pulse constant F = 23 * Q. Ensure your reading device is correctly interpreting the pulse frequency.
- ສະບັບtage ຄວາມຫມັ້ນຄົງ: Ensure the power supply to the sensor is stable and within the specified voltage ຊ່ວງ.
7. ການຮັບປະກັນແລະການສະຫນັບສະຫນູນ
DIGITEN provides a one-year warranty for any product quality problems. If you experience any issues or require technical assistance, please contact DIGITEN customer support through the retailer where you purchased the product or visit the official DIGITEN webເວັບໄຊສໍາລັບການສະຫນັບສະຫນູນ.
For further information or inquiries, please refer to the contact details provided with your purchase or on the DIGITEN brand store page.