1.Mini Float Level Switch-FC/FD Series
the magnetic field of permanent magnet inside the float is moved into
to the proximity of the reed switch inside the stationary stem, the reed
switch “snaps” the contact together and closes the electrical circuit.
When the magnetic field is moved away from the reed switch, the reed
switch does not touch. The circuit is open.
Compact simple design and principle, high reliability, low price.
Over 30 kinds of materials & specifications are optional.
PP, PVDF, NYLON, POLYSULFONE materials are suitable for corrosive environment.
SUS304 / 316; Max. operating temperature 200°C; Max. operating pressure 60kg/cm².
Side-Mounting, Top-Mounting, Bottom-Mounting.
Mounting screw type have M8 ~ M16, 1/8″~1/2″PF / PT / BSP and etc.
The materials of lead wire and cable are PVC, XLPE and PTFE. ses the electrical circ
Mini Float Level Switch has obtained UL approved.
OEM / ODM and special specification are acceptable.
technologies of the product have more and more advance, the products
need comply with a requirement for more safe, convenient and low cost.
The float switches are extremely compact, simple and are easy to install
on any small space.
switches are not effected by electrical interference. They can
withstand to chemicals, high temperatures and pressures if the correct
material of float switch is selected by the customers.
2.Magnetic Float Level Switch-FC/FD SeriesPrincipleThe
single unit or multiple reed switch units arehoused tightly in
stainless steel or engineeringplastic stem, and the permanent magnet
issealed into the middle of the specified float ball(s). You can mount
the float ball to penetrating through the stem, then the liquid buoyancy
will deliver the float ball up and down at the specified position by
When the float internal magnet approaches the reed
switch, it will actuate the reed switch contact point to create an open
or close circuit. We can apply such on-off output signals to reach
liquid level controlling and monitoring purpose.
The figures below show the float orientations on N.O. (Normal Open) and N.C. (Normal Close).
Multiple points measuring, multiple level points are available for custom-built.
It is used the magnet to actuate the reed switch without any extra electric power source.
Each reed switch is durable for operation life reaching 2 million times.
All output signal wiring are simplified in same junction box (housing) to economize the external wiring construction.
type magnetic float level switches are more economical in budget than
other level switches by comparison in multiple points.
The housing protection rating up to IP65.
construction and multiple options for materials from engineering
plastics as PVDF, PP, PVC, and stainless steels as SUS304, SUS316, float
switches can be applied to versatile applications in chemical corrosion
of acidity and alkalinity liquid, solvents or oil fuels.
reed switch and lead wire are isolated absolutely with liquids. All
stainless steel switches are applicable to high pressure andhigh
3. Side Mounting Float Switch-FF SeriesPrincipleSimple
theory as liquid buoyancy is utilized for the main principle of this
“FF” series. A change of liquid level correspondingly travels the float
to extreme levels up and down. The reed switch is thus “NC” and “NO”
exchanged as well as the permanent magnet on pivot will have mutual
repellence to the other one inside on the housing for like poles, which
the Microswitch is button-pushed by magnet to states “NO” and “NC”
- Both MicroSwitch type and Reed Switch are available.
The MicroSwitch type is usable even at ambient temp. of 100LC max.
- Mounting flanges are custom-specifiable. (JIS, DIN, ANSI).
- A rich variety of floats can be suited different specific gravity (S.G.) of liquid.(Custom-made)
4.Cable Float Level Switch-FA/FB SeriesPrincipleFAC,
- Liquid-wetted party material can be selected for SUS304 or SUS316 as well as enclosure explosion proof model.
FAP, FAR Type float switch make use of micro switch as contact
component. The switch will have ON or OFF contact signal output when the
angle is larger than 28 DegreeFAS
Type float switch make use of mercury switch as contact component. When
liquid lift up to contact float, the float will have variable angles.
The switch will have ON or OFF contact signal output when the angle is larger than 10 Degree
Rugged float IP68 enclosure rating
Neoprenespecified cable, silicon cable selectable
Construct simple, maintance free, installation easy
5.Thermal Dispersion Flow Switch-SP SeriesPrincipleThe
Thermal Flow Switch Monitor is based on the principle of thermal
dispersion. A typical configuration uses two Temperature Detectors set
within the tip of the sensor. One Temperature Detector is heated a few
degrees above the other one. As the process medium flows over the tip of
the sensor it disperses some of the heat from the heated Temperature
Detector. The delta temperature is a function of flow velocity and
converted into electronic signal. The open collector changes state once
the set point has been reached.
- Detection of flow velocities in pipes
- LED functions Display
- Open collector alarm output
- Relay out/put
- Measuring Range:(Speed)
water: 1~150 cm/s
oil: 3~300 cm/s
- Material SUS304, 316, PVDF, PP, available
6. PaddleType Level Switch-SF SeriesPrincipleFlow
Switch utilizes the force of liquid flow to propel its paddle in order
to detect the incoming flow or moving of the existing liquid in pipe. In
condition of static liquid or no liquid, the spring is in expanding and
press the magnet downward vertically. Reed switch contact is N.O.
flow occurs and the paddle is thrusted and raised at an upward angle of
20°~30° (or more), the eccentric of paddle will push the magnet upward
to actuate the reed switch which is thus in a close circuit. The length
of paddle can be adjusted with the diameter of a pipe.
- Wetted Part: SUS304, TEFLON.
- Operating Temp: -30°C~150°C.
- Contact Rating: 30W / 200 Vdc.
- Mounting Screw : 1″ PT.
- Enclosure Protection: SF1800: IP-65.
SF1710: EExd II C T6.
- Suitable Pipe: 1″~3″.
- Operating Pressure: 355 PSI.
- Detection: Reversible.
7. Optical Level Switch-SD Series
index of plastic and air varies in big range. Infrared light can be
easily reflected totally between plastic and air. In contrast, infrared
light would totally penetrate through plastic while plastic and liquid
are taken place. Optical switch operates
by sensing the difference
of refraction index between various mediums, which causes different
degree of refraction and penetration.
When dry, the transmitted
light is reflected by the prism back to the receiver. When the sensor
is wetted in liquid, only part of the transmitted light would be
reflected back to the receiver while most is lost into the liquid. The
received light then changes the signal and controls the switching
Optical switch is equipped with infrared source and
receiver. They are to detect and verify the status of infrared light
reflection and penetration between the mediums in order to trigger the
M12 or 3/8″G (PF) of connection
NPN, PNP Open collector output to energize relay or PLC
Over-current and reverse polarity protected
LED status indication
IP68, PC, Polysulfone or SUS304
Pressure range 10 kg/cm2 for PC, Polysulfone, 40 kg/cm2 for SUS304
Low level liquid detect ( 3 mm )8.Pressure Switch-SQ Series
diaphragm is pressurized through the connection in the application and
the pressure is greater than the force of the compression spring, the
contact will open/close and signal will be sent out to the system.
The purpose of installing pressure switch in the system is to accommodate measuring and controlling for the application process.
Suitable in harsh operating conditions
Wide range of connection type
Zinc-plated steel housing material
Available in gold or silver contacts by request
Screw type and push-on type available
Factory preset or field adjustable pressure switching point
Low-cost BUT high quality standards design.
9. Pressure Level Transmitter-EC SeriePrinciple
pressure sensor is made out a piezoresister Wheatstone bridge. The
pressure is applied to the diaphragm and passes through the silicon oil
onto the Wheatstone bridge. When the pressure acts directly on the front
face of diaphragm, the Wheatstone bridge will create a different
voltage. This voltage difference can then be amplified to obtain a
current signal of 4-20mA. After connecting this current output to a
meter, we can scale the meter to read the level of the applied liquid in
a container or a vessel.
are various types at user”s option, such as: transducer with extension
cable/tube, Anti-corrosive type, flange type & pressure transducer.
Can be equipped with digital panel meter, recorder, PLC, signal controller.
There are metal diaphragm can be used in various environments such as weak acid and alkaline liquid or sewage water treatment.
Our internal temperature compensation ensures long lasting reliability.
Multiple flange/screw sizes are available. Customized flanges/screw can be ordered.10. RF-Capacitance Level Transmitter-EB SeriesPrincipleCapacitance
Level Indicator: Utilizes the capacitance formed between the sensing
probe and the metallic vessel wall. A high frequency sine-wave is
applied between the probe and the vessel wall.
A change of the medium level will induce a change in the current of the applied sine wave.
Z=1/2pfc, when the capacitance in the vessel increase, impedance will
decrease and current will increase. Vice-versa, when the capacitance in
the vessel is small, the impedance will increase and current will
Suitable for high temperature, high pressure and corrosive environment.
Not affected by noisy, dusty, misty and changes in the temperature.
No blind distance, ideal for different tanks.
Economic for large tanks
4~20mA output compatible for most control systems and meters\
- Both MicroSwitch type and Reed Switch are available.
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