Imported Digmansha miniature liquid flowmeterFHKSC 932Coffee machine, water dispenser, water flow sensor

The operating principle of water flow sensor:

The water flow rotor assembly mainly consists of a turbine switch housing, a magnetic rotor, and a brake ring. When using the water flow switch method, its performance is superior to the mechanical differential pressure disc structure, and its size is significantly reduced. When water flows through the turbine switch housing, it drives the magnetic rotor to rotate. When different magnetic poles approach the Hall element, the Hall element conducts, and when they leave, the Hall element disconnects. Thus, the rotor speed can be measured.

Based on the measured water flow rate, rotor speed, and output signal(voltage)The curve can determine the starting water pressure of the water heater, as well as the corresponding starting water flow rate and rotor starting speed for the starting water pressure. By control, the water heater can start working when the rotor speed is greater than the starting speed; When the speed is lower than the starting speed, the water heater stops working. In this way, the starting water pressure of the water heater is generally set at0．01 MPaThe starting water flow rate is0.041～2 L／min(Need to meet the temperature rise restrictions of water heater standards).

In addition, due to the magnetic field cutting of the permanent magnet material, water becomes magnetized water, and the oxygen content in the water increases, making people feel refreshed after bathing. The function of the brake ring is to stop the high-speed rotating magnetic rotor from rotating and terminate the pulse signal output when the water is stopped. The controller cannot receive the pulse signal and immediately controls the gas proportional valve to close, cut off the gas source, and prevent dry burning.

Electrical Description:

1Environmentally friendly design, food gradePOMMaterial, compact and practical, adjustable at any angle;

2The inlet is a threaded pipe type, and the outlet is a tube type, making the connection more convenient;

3The Hall element is imported from Japan and is sensitive and reliable;

4Flow range:0.041-2L/minOperating voltage:DC3-18V, rated voltageDC5V；

5Output voltage(ratedDC5V）: High level4.5VAbove, low level0.5Vfollowing; Pulse output duty cycle50±3%；

6A small water flow sensor specially designed for small flow and pharmaceutical machinery, and can also be used in electrical and mechanical equipment.

Precautions to be taken when using a water flow switch:

1The installation environment of the water flow switch should avoid places with strong vibration, magnetic environment, and shaking to prevent misoperation of the water flow switch. In order to prevent particles and debris from entering the water flow switch, a filter screen must be installed at the inlet.

2When the magnetic material is close to the water flow switch, its characteristics may change.

3The water flow switch must be used in conjunction with a relay because the power of the reed switch is relatively small (usually10Wand70W）Easy to burn. The power of the relay is3WThe power is greater than3WThere will be phenomena of normally open and normally closed.

Main applicable fluids: liquids, water, non-alcoholic beverages, Alcoholic beverages, red wine, chemicals giveFHCompared to the series, FHKUSpecially designed for occasions requiring high flow metering,Its high traffic can reach30L/min,And there are multiple flow ranges to choose from, based onDIGMESAExquisite injection molding technology, the upper and lower parts of the flowmeter can be made of different materials, better meeting the different design needs of users.

Digmansa's flow meters have been applied in various fields around the world, measuring various liquids such as water, high viscosity chemically corrosive media, and so on. When applied to the food industry, its products are all approved by the US National Food Safety Administration（NSF）Verification of. The establishment of the company originated from70In the early years, at that timeHeinz PlussSir（DigmesaThe founder of the company) wanted to design and manufacture an instrument that could easily measure the amount of water in the coffee machine. He developed Minghong's instrument on his own, convinced potential users of the progressiveness nature of his design, and received excellent responses1983Established in the year, headquartered in SwitzerlandBielThe Digmansa Company.

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