Float, Level Sensors

Image Part Number Description / PDF Quantity Rfq
FM10-SMD01-NONO

FM10-SMD01-NONO

SMD Sensors

DUAL SWITCH 4" LONG 1/2" NPT,INT

25

ILSEU-GI240-5

ILSEU-GI240-5

Sensata Technologies – Cynergy3

SENSOR PRESSURE 0-240WG 4-20MA

0

RSF88Y100R

RSF88Y100R

Sensata Technologies – Cynergy3

FLOATSWITCH HORZ .6A NO/NC POLY

92

RSF66A25B125P

RSF66A25B125P

Sensata Technologies – Cynergy3

DL PNT FLOATSWITCH 152MM TOTAL L

8

RSF53H100R1/8

RSF53H100R1/8

Sensata Technologies – Cynergy3

FLOATSWITCH VERT 1A NO/NC NYLON

0

SSF67A25B300PM12

SSF67A25B300PM12

Sensata Technologies – Cynergy3

DL LVL FLOATSW 327MM TOTAL L

0

LLF47HFP

LLF47HFP

Sensata Technologies – Cynergy3

FLOAT SWITCH 25VA PVDF NITRILE

0

RBS301-WAT-US

RBS301-WAT-US

Radio Bridge Inc.

LORA WATER LEAK DETECTOR

153

MS10CU

MS10CU

Sensata Technologies – Cynergy3

CABLE FLOAT SPDT 10A POLY

0

ILLS-G0250-5-005

ILLS-G0250-5-005

Sensata Technologies – Cynergy3

SENSOR PRESSURE 0-2.5MWG 4-20MA

0

OLS510D3L

OLS510D3L

Sensata Technologies – Cynergy3

OPT LIQUID LVL SENSOR M10 MNT LW

3

RSF47Y100GG

RSF47Y100GG

Sensata Technologies – Cynergy3

FLOAT SENS LIQ SPST-NC/NO .6A

2

SSH66XU12N100

SSH66XU12N100

Sensata Technologies – Cynergy3

SWITCH HORIZ SS .5A INT/EXT MNT

1

FM10-SMD03-NCNC

FM10-SMD03-NCNC

SMD Sensors

DUAL SWITCH 6" LONG 1/2" NPT,INT

25

RSF43YFP

RSF43YFP

Sensata Technologies – Cynergy3

FLOATSWITCH HORZ .6A NYLON

0

LLC210D324-003

LLC210D324-003

SST Sensing

LIQUID LEVEL SENSOR

0

RSF76YNP

RSF76YNP

Sensata Technologies – Cynergy3

FLOATSWITCH HORZ .6A NO/NC PPS

0

FM10-SMD02-NONO

FM10-SMD02-NONO

SMD Sensors

DUAL SWITCH 5" LONG 1/2" NPT,INT

25

ILSEU-GI048-5

ILSEU-GI048-5

Sensata Technologies – Cynergy3

SENSOR PRESSURE 0-48WG 4-20MA

0

FM10-SMD05-NONO

FM10-SMD05-NONO

SMD Sensors

DUAL SWITCH 8" LONG 1/2" NPT,INT

25

Float, Level Sensors

1. Overview

Float level sensors are electromechanical devices that measure liquid levels using buoyancy principles. They consist of a floating element mechanically linked to a sensing component, providing continuous or point-level detection. These sensors play a critical role in industrial automation, ensuring process efficiency, safety, and resource optimization across sectors like water treatment, energy, and manufacturing.

2. Main Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Magnetic Float SwitchesHermetically sealed contacts activated by float movementWater tanks, fuel storage
Mechanical Lever ArmPhysical linkage translating float motion to potentiometerIndustrial boilers, hydraulic systems
Guided Tube FloatFloat moves along a vertical tube, triggering reed switchesChemical processing, corrosive environments
Optical Float SensorsCombines float mechanism with infrared detectionMedical equipment, cleanrooms

3. Structure and Components

A typical float level sensor comprises: - Float Element: Hollow cylinder made of stainless steel, plastic, or titanium - Guide Mechanism: Rigid rod or cable for vertical movement guidance - Sensing Assembly: Reed switches, potentiometers, or Hall-effect sensors - Enclosure: IP65-rated housing with process connections (NPT, flanges) - Electrical Interface: Terminal block or industrial connectors (M12, etc.) The design ensures reliable operation in media with specific gravity 0.5 and temperatures up to 200 C.

4. Key Technical Specifications

ParameterDescriptionImportance
Measurement Range0.1 10 metersDetermines application suitability
Accuracy 1 3% FSProcess control reliability
Output Signal4 20 mA, 0 10V, SPSTSystem integration capability
Environmental Temp.-40 C to +85 COperational stability
Process Connection1/2" 4" NPT, DINInstallation compatibility
Material CompatibilityPVDF, SS316, EPDMChemical resistance

5. Application Fields

  • Water/Wastewater Treatment: Reservoir level monitoring
  • Oil & Gas: Crude oil storage tank level detection
  • Pharmaceuticals: Reactor vessel fill control
  • Power Generation: Cooling tower water level management
  • Food & Beverage: Syrup level detection in processing tanks

6. Leading Manufacturers and Products

ManufacturerKey ProductFeatures
SiemensFloat Switch Series 8MEATEX-certified, 0.1% repeatability
HoneywellLM Series Level Switches316SS construction, SIL2 rated
TE ConnectivityMini-Level SwitchCompact 6mm diameter design
Endress+HauserProsonic M Float SwitchDual-limit detection with IO-Link

7. Selection Recommendations

Key considerations include: - Media properties (corrosiveness, viscosity, density) - Required measurement range and resolution - Electrical requirements (analog/digital output) - Environmental conditions (vibration, ambient temperature) - Hazardous area classification (ATEX, IECEx) - Maintenance accessibility and calibration frequency

8. Industry Trends

Emerging developments include: - Integration with wireless communication protocols (WirelessHART) - Multiparameter sensors combining level, temperature, and pressure - Self-powered IoT-enabled devices using energy harvesting - Advanced materials for extreme pH environments - Smart diagnostics with predictive maintenance capabilities

RFQ BOM Call Skype Email
Top