Features:

1, the product looks light and flexible, small size, easy to install.

2, impeller built inlaid stainless steel beads, always wear.

3, the use of seals on the structure of the force never leak.

4, Hall components imported, and with a waterproof silicone rubber ring to prevent water, never aging.

5, all raw materials are in line with ROHS testing standards

6, the standard G1 / 2 screw connector to install more simple and solid.

First, the product description:

Water flow sensor mainly by the plastic body, the flow of rotor components and Hall sensors.

It is installed in the water inlet end of the water heater, used to detect the influent flow, when the water through the water flow rotor components,

The magnetic rotor rotates and the speed varies with the flow rate, and the Hall sensor outputs the corresponding pulse

Signal, feedback to the controller, by the controller to determine the size of the water flow, to control.

Precautions for use:

It is strictly forbidden to violent impact and erosion of chemical substances.

Do not throw or hit.

Medium temperature should not exceed 120 degrees

Third, the outlet way:

1 red IN connected to the cathode

2 yellow OUT signal output line

3 black GND connected to negative pole

4 green R temperature sensor (3950K 50K or 3950K 15K please customers according to their own requirements)

Frequency: F = 7.5 * Q (L / Min) Error: ± 2%

To 1L / min flow rate for the column, that is, 7.5 * 1 * 60 is equal to the flow of 1 liter of water output pulse voltage: 3.5-24VDC, the current can not exceed 10mA, finished a liter of water output 450 pulses

Ie frequency calculation = constant 7.5 * unit flow (L / min) * time (seconds)

Flow range: 1-30L / min

Fourth, the technical parameters

Scope of application:

Applicable to water heaters, credit card machines, automatic water dispenser, and other flow measurement equipment!

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1, the minimum rated working voltage

DC4.5 5V-24V

2, the maximum operating current

15 mA (DC 5V)

3, the working voltage range

DC 5 ~ 18 V

4, the load capacity

≤ 10 mA (DC 5V)

5, the use of temperature range

≤ 80 ℃

6, the use of humidity range

35% to 90% RH (no frosting state)

7, to allow pressure

Water pressure below 1.75Mpa

8, save the temperature

-25 ~ + 80 ℃

9, save the humidity

25% to 95% RH