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AT:   home <<  Variable Speed Vacuum Liquid Pump
¤ WUY Series
  • Performance parameters
  • Diagram
  • Wiring instructions
  • Corresponding accessories
  • Operation video
  • Attentions

      For type selecting of micro vacuum pump, please refer to the section Theory and Test Data for more basic knowledge.

      ●Characteristics:

        1.This kind of pump has dual function that can be used for liquid or gas sampling.It is a self-priming pump. (When turned on ,the pump starts to do the liquid sampling, no extra water is needed at the beginning.) It also allows dry running.(When the liquid runs out or without liquid ,the pump can run smoothly without any damage)

        2.It is equipped with brushless DC motor, durable and low interference. It can run continuously around the clock without interfering with the surrounding electronic components or polluting power source. Stable performance and high reliability. Maintenance-free . Damp gas as the medium is acceptable. No pollution during the gas transmitted as it is oilless operation. Corrosive gas is allowed to be input(The material for the parts which come in contact with gas : Glass fiber reinforced nylon ,EPDM rubber)

        3.It facilitates the adjustment of output flow of the pump. The flow rate can be changed by freely adjusting the revolving speed of the motor through electrical control, which makes it easier to achieve automatic control, noise reduction, shock absorption, and energy saving. Compared to the way to change flow rate via mechanic valve, it is more suitable for automatic control, more precise and cheaper. The series is on the PWM(Pulse Width Modulation)circuit to change the revolving speed of motor and thus alter the flow rate.

        4.There are feedback signals about the revolving speed of motor, which indicate the operational condition and output flow alteration of the pump and thus facilitate the intelligent control. Perfect self-protective function. It has functions of overload protection. (This function do not apply to Economical version)

        5.It is free of maintenance and is non-lubricated. The pump is oil-less and will not pollute the gas transmitted. Extract of damp gas is allowed.

        6.Low noise.It can be installed in any direction, for example, being installed horizontally, vertically, or in a slope, and work properly.

      

    Certificate:

    CONFORMITE

     EUROPEENNE

    EMC

    Electro   Magnetic  

     Compatibility

     

     

     ●Technical Specifications

    Model

    As the vacuum pump

    As the liquid pump

    Operating Voltage

    Load Current

    Flow rate

    (Effective value)

    Vacuum

    (Negative pressure)

    Operating Voltage

    Load  Current

    Flow rate

    (Effective value)

    V DC

    mA

    L/min

    kPa

    V DC

    mA

    L/min

    WUY200

    12

    <80

    0.2

    -13

    12

    <110

    0.2

    WUY280

    12

    <110

    0.4

    -13

    12

    <190

    0.28

    Remark : customized is available

        

       Note:Input voltage is required at 12V±10%

     

     ●Performance Comparison

           Version

    Economical version

    Simplified version   

    Standard version

    Component 

    (Quality level)

     

    Brushless motor

    ★★

    ★★★★

    Diaphragm

    ★★

    ★★★★

    Bearing

    ★★

    ★★★★

    Performance

     

    Continuous loading service life

    ≥2800hours

    >4500 hours

    >5500 hours

    Electromagnetic Interference

    ▲▲▲▲

    ▲▲▲

    Ambient Temperature

    0~40℃

    0~50℃

    0~50℃

    Adjustment of speed

    Self protectiveFunction

    ×

    Speed feedback Signal

    ×

    ×

    Speeder matched

     

    Only match with simplified version speeder

     

    Steady speed type speeder

    Digital speeder

    Simplified speeder

      

    Testing of Water Suction and Discharge Height
     

      Notes:

         1.All connection tubes shall be silicone tubes with internal diameter of φ35mm.
         2.The liquids that are sucked shall be pure water.
         3.See the following figure for the definition of the maximum water suction height H1 and the maximum water discharge height H2.
         4.The value above may be subject to change without further notice in accordance with product improvement.


    Pump model

    Max. water 

    suction height H1 

    Water suction rate (ml/min) 

    at the max. water suction height

    Max.water

     discharge height H2 

    Water discharge rate (ml/min)

     at the max. water discharge height

     

    (m)

    (mL/min)

    (m)

    (mL/min)

    WUY200

    2

    >80

    2

    >180

    WUY280

    1.5

    >85

    2

    >230

     Notes:When testing the value of H1, the length of water discharge line is less than 100mm. When testing the value of H2, the length of water suction line is less than 100mm.

WUY Series Dimensional Drawings

UG

Drawing unit: mm

  ●Wiring instructions

S/N

Color of 

leading wire

Function

Action voltage

Remark

1

Black

Power wire ,Negative pole

 

 

2

Red

Power wire,Positive pole+12V (±10%) 

 

 

3

 

Yellow

FG feedback signal(motor speed feedback signal,pulse signal).The motor output 6 pulse for making a circle(No yellow wire for simplified version)

Low level <0.6V;high level <6V,recommend high level=5V

Max.rated current of FG 

signal is 3mA

The internal motor is open-drain status,therefore you need to be pulled outside.Voltage 5V,resistance 5.1kΩ.

4

White

Pulse Width Modulation(PWM)

0V≤ start≤0.8V 

2V≤stop≤5V

Adjust the motor speed and pump flow by changing the duty-cycle.We suggest the PWM input signal frequency in this range:15KHz-25KHz .
This port can not control the start & stop.

5

Orange

Connect with power negative pole.

2V≤stop≤5V

0V≤ start≤0.8V

This wire is used for the control the star and stop of pump,Especially frequent starts and stops.if you do not need ,should wrap it with insulation material.
Disconnect this red power wire ,if the pump do not work for a long time.This function do not apply to WUY280,please connect negative pole.

 

 

  Warning:No hot plugging! No connect or disconnect the motor leading wire when the power is on!Forbid to reverse the positive and negative pole ,otherwise the   motor will be damaged

 

  If you do not need use the speed governing and speed feedback signal, connection as below:

  ●Motor electrical schematic diagram and peripheral circuit

接线说明
 

Note:

  1.As shown in figure. several ports must connect schottky diode, Because the internal functions of the motor control and drive are MOS(Metal-Oxide-Semiconductor) tube, the input impedance is high, the ports must be connected to the schottky diodes to prevent any accidental larger jamming signal to breakdown the MOS tube.

  2.The requirement for the control of electricity level : 0V≤low level≤0.8V ,2V≤high level≤5V

  3.FG port for motor speed feedback signal, should be paid attention to in the application: FG output signal port is open drain, the user needs to connect a pull-up resistors, an application example as shown in figure.

 

 Optional Accessories

Filter Silicone tube(Note: inner diameter is about 5mm, and outer diameter is about 9mm.)

 

 Note: A medium size filter and a 10cm silicone tube will be included in the package for each
pump.

 

Attentions

     1.To be used as vacuum pump, the inlet of this pump can run in heavy-duty ,and blocked for a while, the pump can work properly, but the outlet of pump should remain unobstructed.To be used as liquid pump, both inlet and outlet should remain unobstructed.

     2.The product has not explosive-proof performance. It is not recommended to be used in inflammable and explosive environment!

     3.When the gas input is hazardous, users must re-seal the pump for the sake of safety!

     4.All gas circuit elements such as pipeline and gas tank must be provided with enough strength for the sake of safety.

     5.Outlet should remain unobstructed.otherwise it will cause the damage of micro pump.

 

 

Chengdu Qihai Electromechanical Equipment Manufacturing Co., Ltd
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