เซ็นเซอร์วัดอัตราการไหลของน้ำ 1-30ลิตรต่อนาที Electronic Flow Sensor Electronic Flow Meter รายละเอียด วัดอัตราการไหลของน้ำ ใช้สำหรับวัดอัตราการไหลของน้ำ Thermostatic water heater, water purifier, water dispenser, smart card equipment, coffee machine etc. Calculation Formula: F(Hz)= 8.1*flow rate(Q)-6(l/min) Note: 1. When magnetic material is close with the sensor, its characteristics may vary. 2. In order to avoid particle debris, the sensor must be installed after a filter. 3. The flow sensor installation has to avoid strong vibration and shaking of the environment, so as not to affect the sensor's measurement accuracy.Features: 4. Copper material, environmental friendly material, small, flexible and functional. 5. Intubation design of inlet and outlet pipe, easy connection and operation; 6. Imported Hall IC from Japan, stable and reliable; 7. Range: 1-30L/min; 8. working voltage: DC3-18V; 9. rated voltage: DC5V; 10. Output voltage(rated: DC 5V); High level 4.5V and above; low level 0.5V and below 11. Pulse output duty cycle: 50+-10% 12. Insulation resistance: 100M Ohm and above; 13. Tightness: Seal up all the holes, and inflate with 1.7MPa water, after 1 minute, no leakage and deformation; 14. -20-80 Cel.degree;   รับประกันสินค้า 1 เดือน