About this item

Model: 1/2" YF-B1, 3/4" YF-B5, 1" YF-B10, 1-1/4" YF-DN32-T, 3" YF-DN80, Brass Water Flow Sensor.

Output signal: NPN pulse signal.

Interface size: DN15(1/2"), DN20(3/4"), DN25(1"), DN32(1-1/4"), DN80(3").

Flow range: 1/2"(1~25 L/min), 3/4"(1~30 L/min), 1"(2~50 L/min ), 1-1/4"(3~60 L/min), 3"(20~500 L/min) Error±5%.

Working voltage range: DC3.5-24V.

Material: Brass

Medium temperature: -20°C-85°C

Water pressure resistance: ≤1.75MPa

Output pulse high level: ＞DC 4.7V (input voltage DC 5V)

Output pulse low level: ＜DC 0.5V (input voltage DC 5V)

Flow pulse characteristics:
1/2" F=[11*Q], That is 660 pulses per liter of water;
3/4" F=[6.6*Q], That is 396 pulses per liter of water;
1" F=[8*Q-4], That is 476 pulses per liter of water;
1-1/4" F=[1.8*Q], That is 108 pulses per liter of water;
3" F=[0.5*Q], That is 30 pulses per liter of water.
(F is frequency, Q is L/min) Error±5%

Tightness: Close each hole, add 1.75Mpa water pressure test for 1 minute without leakage and deformation.

Notice:

1. The more you order, the more offers, please contact us.

2. Package list: Sensor*1pcs

3. Wiring mode:
Red IN is connected to the positive pole
Yellow UOT signal output line
Black GND connects to the negative pole