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Smart Electronic Digital Level Switch , Stainless Steel Submersible Level Switch 4~20mA

Categories Electronic Digital Level Switch
Brand Name: WNK
Model Number: SLS
Certification: SGS, ISO9001:2015
Place of Origin: Hefei, CN
MOQ: 1 piece
Price: Negotiation
Payment Terms: T/T, Western Union
Supply Ability: 5000pcs per month
Delivery Time: 5-8 work days
Packaging Details: Sea-Worthy Packing or Air-Worthy Packing
Output: 4...20mA/0...5V+PNP+MODBUS
Accuracy: ≤0.5%FS
Measuring range: 0...1mH2O to 100mH2O
Long-term stability: ±0.3%FS/year
Power supply: 12...30V DC
Display: OLED
Ingress Protection: IP65
Electrical connector: M12
Easy Installation: Housing against process connection rotatable 330°
Application: oil&gas, petrol, petrochemical, chemical industry, metallurgy, pharmacy
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Smart Electronic Digital Level Switch , Stainless Steel Submersible Level Switch 4~20mA


Smart Stainless Steel Submersible Level Switch 4~20mA+PNP Switch Output


SLS Intelligent Level Switch is designed for level monitoring and measurement of liquid and oil media. It is applied to general industry such as tank, case, liquid cell and deep well. It is level switch, transmitter and display in one device. In its standard configuration it has optional two switching outputs (PNP or NPN), an analog output signal (0...20mA| 4…20 mA or 0...5V| 0…10 V) as well as with RS485 Link.


The level switch SLS takes the high integrated ARM industrial-grade MCU as the core. The SLS ensures fast-speed and precise level measurement and switch movement by carefully adjustment and combining high-precision AD switch and high stabile pressure sensor. The setup using the three big back-lighted buttons and the display on machine make it very easy for on-site parameters setting.


Quick Information:

  • Liquid and oil media level measurement
  • PNP switching, voltage and current outputs
  • Support MODBUS communication
  • Switching points settable
  • Switching can be set normally open / normally closed
  • Supporting Switching delay
  • Analog output span settable
  • High light switch indicating
  • OLED self-luminous display
  • Display turnable 180°
  • Housing with electrical connection against process connection rotatable 330°
  • Media density settable

Detailed Technical Info:

Measuring range0…1mH2O to 100mH2O
Accuracy≤0.5%FS
Supply Power12…30V DC
Temp. Error±0.02%FS/℃
Long-term Stability±0.3%FS/Year
Analog output accuracy±0.2%FS
Measuring MediaWater, mineral-based hydraulic fluid and Synthetic oil
Wetted materialStainless steel, Nitrile Butadiene Rubber and PTFE

Output Configurations


switching+voltage+ communication2×PNP + 0V~5VDC/10VDC + MODBUS
switching+current+ communication2×PNP + 0mA/4mA~20mADC + MODBUS
Switching current1.0A(Max.)
Switching typenormally open , normally closed (settable)
Switching respond time<10ms
Switching delay0.00s~1000.0s
Switching motion modedelay or windows mode
Analog signal output and maximum ohmic load RLCurrent output0/4…20mA,20…4/0mA RL≤0.5kΩ
Voltage output0…5/10V,5/10…0V RL>10kΩ
Screen displayOLED
Menu languageChinese,English
Switching instruction2X Red LED
Displaying pressure unitskPa, mm, cm, m
Buttons3X blue back-lighted touch buttons
Displaying supplementary variablesenvironment temp., analog output value, max. Peak value,mini. peak value
Supplementary variables displaying modefixed displaying or INFO button switching Display
Working temperature-30℃~80℃
Media temperature0℃~60℃
Storage temperature-40℃~80℃
Electromagnetism compatibleGB/T 17626.2/3/4-2006
Shock resistance≤10g/10Hz...500Hz(IEC 60068-2-6-2007)
Vibration resistance≤50g/11ms(IEC 60068-2-27-2008)
Protection RatingIP65 / IP68

Competitive Advantages:

1. Founded in 2004, over 13 year professional research, developing and production experience;
2. Experienced and professional R&D team to provide customization services;
3. Producing transmitter core elements- PCB, supplying PCB for transmitter producers;
4. Highest accuracy up to 0.05%FS;
5. Various outputs I2C, SPI, 4~20mA, Hart, Modbus, Profibus-Pa, 0.5-4.5V, 0.2-2.9V and other analog outputs;
6. Our products have been exported to Germany, Norway, Poland, Finland, Spain, UK, France, Russia, USA, Brazil, Mexico, Australia, Japan, Korea, Thailand, Indonesia, Uruguay and many other countries.

China Smart Electronic Digital Level Switch , Stainless Steel Submersible Level Switch 4~20mA factory
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