liquid level sensor

    Soway Technology has a large number of liquid level sensor products, including reed continuous liquid level sensors, magnetostrictive liquid level sensors, LVDT liquid level sensors, capacitive liquid level sensors and ultrasonic liquid level sensors, which can measure continuous changes in liquid level. Realize the real-time, continuous and high-precision measurement of the liquid level, and realize the functions of measurement, control and measurement.
    There are also float type liquid level switches and capacitive liquid level switches for detecting high and low liquid level points, which can realize high and low liquid level detection, limit and alarm functions in various liquid level containers.
    Widely used in petroleum, chemical, water conservancy, environmental protection, beverage, home appliances, medical and other industries.
 

 

 

Soway Technology has a large number of liquid level sensor products, including reed continuous liquid level sensors, magnetostrictive liquid level sensors, LVDT liquid level sensors, capacitive liquid level sensors and ultrasonic liquid level sensors, which can measure continuous changes in liquid level. Realize the real-time, continuous and high-precision measurement of the liquid level, and realize the functions of measurement, control and measurement.
There are also float type liquid level switches and capacitive liquid level switches for detecting high and low liquid level points, which can realize high and low liquid level detection, limit and alarm functions in various liquid level containers.
Widely used in petroleum, chemical, water conservancy, environmental protection, beverage, home appliances, medical and other industries.

Magnetostrictive Level Sensor

 

Explosion-proof magnetostrictive liquid level sensor

model Power supply

output signal

measurement object

Displacement range(mm)

linearity error Repeat error
hysteresis

resolution(um)

Temperature Coefficient Operating temperature

http://www.sowaysensor.com/admin/editor/uploadfile/20151210175017263.jpg

SFM40S series analog output Default 24V DC (optional 12V DC)

Voltage

0~5V or 0~10V

Liquid level or interface (up to one liquid level and one interface can be measured at the same time)

80-3000mm

 

Flexible series3m~23m

 

≤±0.05%F.S(minimum ±50μm) ≤±0.002%F.S ≤0.002%F.S

Adopt 16bit D/A conversion, 0.0015%F.S

≤0.007%F.S/℃ -40℃~+85℃
electric current0~20mAor 4~20mA
SFM40S Series Digital Output

Modbus

 

Liquid level or interface (up to one liquid level and two interfaces can be measured simultaneously)

5μm

   

SFMS double float type magnetostrictive liquid level sensor

model

output signal measurement object

Displacement range(mm)

linearity error Repeat error hysteresis Operating temperature

resolution(um)

http://www.sowaysensor.com/admin/editor/uploadfile/20131017164016316.jpg

SFMS series analog output

Voltage

0~5V or 0~10V

 

Liquid level or interface (up to one liquid level and one interface can be measured at the same time)

80-3000

 

≤±0.05%F.S(minimum ±50μm) ≤±0.002%F.S ≤0.002%F.S -40℃~+85℃

Adopt 16bit D/A conversion, 0.0015%F.S

electric current0~20mA or 4~20mA

SFMS series digital output

Modbus Liquid level or interface (up to one liquid level and two interfaces can be measured simultaneously)

5μm

   

SFM20T Universal Magnetostrictive Liquid Level Sensor

model Power supply measurement object Displacement range

output signal

linearity error Repeat error hysteresis Operating temperature

SFM20T series analog output Default 24V DC (optional 12V DC) liquid level or interface 80~3000mm

Voltage
0~5V or 0~10V

≤±0.05%F.S(Minimum±50μm) ≤±0.002%F.S ≤0.002%F.S -40℃~+85℃
electric current0~20mA or 4~20mA
SFM20T series digital output Modbus
  

SFM21T Universal Magnetostrictive Liquid Level Sensor

model Power supply measurement object Displacement range

output signal

linearity error

Repeat error hysteresis Operating temperature

SFM21T series analog output Default 24V DC (optional 12V DC) liquid level or interface 80~3000mm Voltage
0~5V or 0~10V

≤±0.05%F.S(minimum ±50μm)

≤±0.002%F.S ≤0.002%F.S -40℃~+85℃
Current 0~20mA or 4~20mA
SFM21T series digital output Modbus

 

SFM51F Anti-corrosion Magnetostrictive Level Transmitter (Acid Resistant)

model Power supply measurement object Displacement range

output signal

linearity error Repeat error hysteresis Operating temperature pressure material

SFM51F series analog output Default 24V DC (optional 12V DC) The liquid level or interface of lye 80~3000mm

Voltage
0~5V或0~10V

≤±0.05%F.S(minimum ±50μm) ≤±0.002%F.S ≤0.002%F.S -20℃~+85℃ ≤1MPa PFA(strong acid)
Current 0~20mA or 4~20mA
SFM51F series digital output The liquid level or interface of lye Modbus

 

SFM50P Anti-corrosion Magnetostrictive Liquid Level Transmitter
(alkali resistance)
model Power supply measurement object Displacement range

output signal

linearity error Repeat error hysteresis Operating temperature pressure material

SFM50P series analog output Default 24V DC (optional 12V DC) The liquid level or interface of lye 80~3000mm

Voltage
0~5V or 0~10V

≤±0.05%F.S

(minimum ±50μm)

≤±0.002%F.S ≤0.002%F.S -20℃~+85℃ ≤1MPa PP(strong base)
Current 0~20mA or 4~20mA
SFM50P series digital output Modbus

 

 

SFMLE Explosion Proof Flexible Magnetostrictive Liquid Level Sensor

model Power supply Liquid level range output signal linearity error Repeat error hysteresis Operating temperature Temperature Coefficient

http://www.sowaysensor.com/admin/editor/uploadfile/20131017164016316.jpg

SFMSLE Series Analog Output
Default 24V DC (optional 12V DC)
3000~23000mm Voltage 0~5V or 0~10V ≤±0.05%F.S(minimum ±50μm) ≤±0.002%F.S ≤0.002%F.S -40℃~+85℃ ≤0.007%F.S/℃
electric current0~20mA or 4~20mA
SFMSLE series digital output Modbus

 

Pressure level sensor

 

SFP423 Series Pressure Type Liquid Level Sensor

model Power supply Measurement range

output signal

Comprehensive measurement accuracy Temperature measurement range Temperature Measurement Accuracy Temperature Compensation Range Operating temperature storage temperature installation interface Enclosure rating

SFP series pressure liquid level sensor 5~36 VDC 0~2000mm

(Range can be customized)

 0.5~4.5V ±1%F.S -40℃~+85℃ ±1℃ -40℃~+85℃ -40℃~+85℃ -55℃~+100℃ Threaded connection (suitable for oil tank drain screw specification) IP65
RS485(F3 protocol)
CAN
PWM signal output

 

 

SFP423 Series Pressure Type Liquid Level Sensor

model Power supply Displacement range

output signal

Accuracy of liquid level measurement

Temperature measurement range

Temperature measurement accuracy Temperature Compensation Range Operating temperature Medium of measurement Probe material enclosure protection class

SFP series pressure level sensor 5~12VDC 0~1000mm

(Range can be customized)

 RS485(F3协议) ±0.5%F.S

-40℃~+85℃

±1℃ 0℃~+70℃ -40℃~+85℃ diesel
 
stainless steel IP65

 

Submersible liquid level sensor

 

SYP265L series

Input pressure sensor
Measuring medium Power supply Measuring range

output signal

overload pressure Medium temperature ambient temperature Storage temperature Relative humidity Rise Time Accuracy Temperature Compensation Range Medium contact material /

Shell material

Water and general non-corrosive liquids 9 ~ 36V DC (two-wire system), 24±5V DC (three-wire system) 0~0.01MPa (0~1m water) to 0~1MPa (0~100m water)  0 ~ 5V DC overload pressure -30 ~ +85℃ -20 ~ +85℃ -40 ~ +90℃ ≤ 95% (40℃ ) ≤ 5 milliseconds
Up to 90% FS
0.5 class, 0.25 class
(comprehensive error including non-linearity, repeatability and hysteresis)
0 ~ 70℃ 304 or

316 stainless steel
0 ~ 10V DC
4 ~ 20mA
Modbus

(RS485 or RS232)

 

float level switch
   

Level Switch

model

Maximum Switching Power

Maximum Switching Voltage(DC) Maximum Switching Voltage(AC) Maximum switching current(DC)

Maximum switching current(AC)

Maximum load current Operating temperature pole length(mm) Float(mm)

Plastic vertical installation type

SF112

1

10W

200V 140V 500mA

500mA

1.75A -40℃~+80℃ 31.0 Φ24.0×17.0
2 70W 250V 1000mA 1000mA 2.25A
3 5W 175V 125V 400mA 280mA 0.5A

 

Level Switch

model

Maximum Switching Power

Maximum Switching Voltage(DC) Maximum Switching Voltage(AC) Maximum switching current(DC)

Maximum switching current(AC)

Maximum load current Operating temperature pole length(mm) Float(mm)

http://www.sowaysensor.com/admin/editor/uploadfile/20151210191842412.jpg

Plastic vertical installation type

SF112S

1

10W

200V 140V 500mA

500mA

1.75A -40℃~+80℃ 31.0 Φ19.0×16.5
2 70W 250V 1000mA 1000mA 2.25A
3 5W 175V 125V 400mA 280mA 0.5A

 

Level Switch

model

Maximum Switching Power

Maximum Switching Voltage(DC) Maximum Switching Voltage(AC) Maximum switching current(DC)

Maximum switching current(AC)

Maximum load current Operating temperature pole length(mm) Maximum load current(mm)

http://www.sowaysensor.com/admin/editor/uploadfile/20151210192004258.jpg

Plastic vertical installation type

SF113

1

10W

200V 140V 500mA

500mA

1.75A -40℃~+80℃ 24.5 Φ18.0×8.2
2 70W 250V 1000mA 1000mA 2.25A
3 5W 175V 125V 400mA 280mA 0.5A

 

Level Switch

 

Maximum Switching Power

Maximum Switching Voltage(DC) Maximum Switching Voltage(AC) Maximum switching current(DC)

Maximum switching current(AC)

Maximum load current Operating temperature

http://www.sowaysensor.com/admin/editor/uploadfile/201512101920362.jpg

Plastic vertical installation type

 

1

10W

200V 140V 500mA

500mA

1.75A -40℃~+80℃
2 70W 250V 1000mA 1000mA 2.25A
3 5W 175V 125V 400mA 280mA 0.5A
   

Level Switch

model

Rod length (mm)(mm)

Float(mm)

http://www.sowaysensor.com/admin/editor/uploadfile/201512101920362.jpg

Plastic vertical installation type

SF119

42.0

Φ24.0×17.0

SF11B

52.0

Φ24.0×22.0

SF11D

85.0

Φ24.0×22.0

   

Level Switch

model

Maximum Switching Power

Maximum Switching Voltage(DC) Maximum Switching Voltage(AC) Maximum switching current(DC)

Maximum switching current(AC)

Maximum load current Operating temperature pole length(mm) Float(mm)

http://www.sowaysensor.com/admin/editor/uploadfile/20151210192608198.jpg

Plastic horizontal installation type

SF121

1

10W

200V 140V 500mA

500mA

1.0A -40℃~+80℃

64.9

 

Φ17.0
2 70W 250V 1000mA 1000mA 1.75A
3 5W 175V 125V 400mA 280mA 0.5A

 

      

Level Switch

model

Maximum Switching Power

Maximum Switching Voltage(DC) Maximum Switching Voltage(AC) Maximum switching current(DC)

Maximum switching current(AC)

Maximum load current Operating temperature pole length(mm) Float(mm)

http://www.sowaysensor.com/admin/editor/uploadfile/20151210191533614.jpg

Plastic horizontal installation type

SF122

1

10W

200V 140V 500mA

500mA

1.0A -40℃~+80℃

80

 

Φ17.5
2 70W 250V 1000mA 1000mA 1.75A
3 5W 175V 125V 400mA 280mA 0.5A

 

Level Switch

model

Maximum Switching Power

Maximum Switching Voltage(DC) Maximum Switching Voltage(AC) Maximum switching current(DC)

Maximum switching current(AC)

Maximum load current Operating temperature pole length(mm) Float(mm)

http://www.sowaysensor.com/admin/editor/uploadfile/2015121019173084.jpg

Plastic horizontal installation type

SF126

1

10W

200V 140V 500mA

500mA

1.0A -40℃~+80℃ 41.5 Φ26.0×10.0
2 70W 250V 1000mA 1000mA 1.75A
3 5W 175V 125V 400mA 280mA 0.5A
Floating ball level gauge, floating ball level gauge, floating ball level switch 

Level Switch

model

Maximum Switching Power

Maximum Switching Voltage(DC) Maximum Switching Voltage(AC) Maximum switching current(DC)

Maximum switching current(AC)

Maximum load current Operating temperature pole length(mm) Float(mm)

http://www.sowaysensor.com/admin/editor/uploadfile/20151210193508224.jpg

Stainless Steel Horizontal Mounting Type

SF141

1

10W

200V 140V 500mA

500mA

1A -40℃~+125℃ 86.0 Φ17.0
2 70W 250V 1000mA 1000mA 2.25A
3 5W 175V 125V 400mA 280mA 0.5A

  

Level Switch

model

Maximum Switching Power

Maximum Switching Voltage(DC) Maximum Switching Voltage(AC) Maximum switching current(DC)

Maximum switching current(AC)

Maximum load current Operating temperature pole length(mm) Float(mm)

http://www.sowaysensor.com/admin/editor/uploadfile/20151210193621702.jpg

Stainless Steel Horizontal Mounting Type

SF142

1

10W

200V 140V 500mA

500mA

1A -40℃~+125℃ 73.0 Φ17.0
2 70W 250V 1000mA 1000mA 2.25A
3 5W 175V 125V 400mA 280mA 0.5A
   

Level Switch

model

Maximum Switching Power

Maximum Switching Voltage(DC) Maximum Switching Voltage(AC) Maximum switching current(DC)

Maximum switching current(AC)

Maximum load current Operating temperature pole length(mm) Float(mm)

http://www.sowaysensor.com/admin/editor/uploadfile/20151210193949831.jpg

Stainless Steel Horizontal Mounting Type

SF131

1

10W

200V 140V 500mA

500mA

1A -40℃~+125℃

46.0

(customizable by user)

 

Φ28.6×28.0
2

70W

250V 1000mA 1000mA 2.25A
3

5W

175V 125V 400mA 280mA 0.5A

 

Dual Point Level Switch

model

Maximum Switching Power

Maximum Switching Voltage(DC) Maximum Switching Voltage(AC) Maximum switching current(DC)

Maximum switching current(AC)

Maximum load current Operating temperature pole length(mm) Float(mm)

http://www.sowaysensor.com/admin/editor/uploadfile/20151210194146667.jpg

Stainless Steel Vertical Mount Type

SF131

1

10W

200V 140V 500mA

500mA

1A -40℃~+125℃

187.0

(customizable by user)

 

Φ24.0×22.0
2 70W 250V 1000mA 1000mA 2.25A
3 5W 175V 125V 400mA 280mA 0.5A
   

Level Switch

model

Maximum Switching Power

Maximum Switching Voltage(DC) Maximum Switching Voltage(AC) Maximum switching current(DC)

Maximum switching current(AC)

Maximum load current Operating temperature pole length(mm) Float(mm)

http://www.sowaysensor.com/admin/editor/uploadfile/20151210193916327.jpg

Stainless Steel Vertical Mount Type

SF132

1

10W

200V 140V 500mA

500mA

1A -40℃~+125℃

81.0

(customizable by user)

 

Φ28.6×28.0
2 70W 250V 1000mA 1000mA 2.25A
3 5W 175V 125V 400mA 280mA 0.5A

  

Dual Point Level Switch

model

Maximum Switching Power

Maximum Switching Voltage(DC) Maximum Switching Voltage(AC) Maximum switching current(DC)

Maximum switching current(AC)

Maximum load current Operating temperature pole length(mm) Float(mm)

http://www.sowaysensor.com/admin/editor/uploadfile/20151210194218691.jpg

Stainless Steel Vertical Mount Type

SF132

1

10W

200V 140V 500mA

500mA

1A -40℃~+125℃

80.0

(customizable by user)

 

Φ28.6×28.0
2 70W 250V 1000mA 1000mA 2.25A
3 5W 175V 125V 400mA 280mA 0.5A

 

Anti-corrosion type side mounted float level switch

model

 

SF132

1
2
3

 Magnetic liquid level switch, magnetic water level switch, magnetic liquid level sensor

  
capacitance level transducer

 

Capacitive liquid level sensor SFCZ20

output signal

Measuring range(mm)

accuracy

http://www.sowaysensor.com/admin/editor/uploadfile/20151210200147397.jpg

直插式

analog output

100-2000

0.25

digital output

100-2000

0.25

 

SFC520 Series Capacitive Liquid Level Sensor

output signal

supply voltage Repeat error Operating temperature

Measuring range(mm)

nonlinear error

直插式

0~5VDC或0~10VDC(Three-wire system) 5VDC[1] /12VDC[2] /15 ~28V DC <±0.02%F.S -40℃~+85℃

100~1500mm(customizable by user)

±1%F.S 或 ±2%F.S

 RS485 RS232

 

Capacitive liquid level sensor SFC308Z

supply voltage electrical output temperature effect material

Measuring range(mm)

accuracy

直插式

5-9VDC/12-36VDC RS485 / 0.5-4.5 VDC ±0.03% FS/℃ @ 101kPa SS316L+PFA

100-300mm

±1.5% FS @ 101kPa, water, 25℃

   

Snap-in capacitive liquid level sensor

output signal

Measuring range(mm)

accuracy

http://www.sowaysensor.com/admin/editor/uploadfile/20120410152818477.jpg

analog output

100-2000

0.25

digital output

100-2000

0.25

   

Explosion-proof capacitive liquid level sensor

output signal

Measuring range(mm)

accuracy

http://www.sowaysensor.com/admin/editor/uploadfile/20151210200752335.jpg

analog output

100-2000

0.25

digital output

100-2000

0.25

   

SFC312 series capacitive liquid level sensor

Displacement range

Power supply output signal nonlinear error

Repeat error

Operating temperature

100~1500mm(用户可定制)

5VDC[1] /12VDC[2] /15 ~28V DC 0~5VDC or 0~10VDC(Three-wire system) ±1%F.S 或 ±2%F.S

<±0.02%F.S

-40℃~+85℃

 RS485 RS232
  

SFC308 系列电容式液位传感器

Displacement range

 

Power supply output signal nonlinear error

Repeat error

Operating temperature

http://www.sowaysensor.com/admin/editor/uploadfile/20130716101600499.jpg

100~1500mm(用户可定制)

5VDC[1] /12VDC[2] /15 ~28V DC 0~5VDC或0~10VDC(Three-wire system) ±1%F.S 或 ±2%F.S

<±0.02%F.S

-40℃~+85℃

 RS485 RS232

 

Interruptible capacitive liquid level sensor

output signal

Measuring range(mm)

accuracy

http://www.sowaysensor.com/admin/editor/uploadfile/20130716102250626.jpg

analog output

200-300

0.25

digital output

200-300

0.25

   

Static capacitance pipe type liquid level switch liquid level switch

model

 

http://www.sowaysensor.com/admin/editor/uploadfile/20151210202018131.jpg

PCR25P34-11N

 

PCR25P34-26N