Level Sensors

Level sensors determine how full or how empty a container is. Level sensors provide an output electrical signal at predetermined levels to communicate when to open or close control valves.

Level Sensor Types

The choice of sensors is usually determined by which substance is being measured, the environment in which the sensor is to used and in which position the sensor needs to be mounted. Some of the most common level sensors are:

Capacitive level switches

  • Capacitive level switches provide a basic full/empty level indication determined by the mounting position of the sensor. This type of switch is non-contact and uses a sensing field to determine liquid levels. Capacitive sensors provide accurate switching even with heavy residue build-up.

Vibrating level probes

  • Vibrating level probes use a rod or a fork that constantly produce high-frequency vibrations. When the vibrating probe comes into contact with the medium, the vibration changes and the vibrating level switch outputs a switching command. Vibrating level switches are used as overfill protection devices or low-level indicators in liquids as well as in granular and powder bulk solids.

Conductive level switches

  • Conductive level switches are sensors that use stainless steel probes with an electrical contact output to measure a specific liquid level. Used in conjunction with a level control relay to set and monitor each probe. Applications include ponds, reservoirs, sumps, pharmaceuticals, closed vessels and open tanks.

Ultrasonic level sensors

  • Ultrasonic level sensors generate ultrasonic sound pulses that are reflected by the surface of a liquid medium. The time travelled by the ultrasonic pulse is calculated by the sensor which then determines the distance of the liquid to give an accurate fill level. The ultrasonic sensors response is influenced by turbulence, pressure, moisture, and temperature.

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Omschrijving Prijs Device Type Mounting Type Switch Output Body Material Cable Length Minimum Operating Temperature Maximum Operating Temperature Maximum AC Voltage Maximum DC Voltage Maximum Current Maximum Pressure Gasket Material Current Rating Hazardous Area Certification
RS-stocknr. 793-2812
FabrikantnummerMHF15-21NG1PSM
FabrikantSick
€ 87,00
Each
Aantal stuks
Optical Sensor Chassis Mount PNP Stainless Steel - -25°C +55°C - - 100 mA 16bar - - -
RS-stocknr. 793-2825
FabrikantnummerMHF15-21NG1HSM
FabrikantSick
€ 87,00
Each
Aantal stuks
Optical Sensor Chassis Mount PNP Stainless Steel - -25°C +55°C - - 100 mA 16bar - - -
RS-stocknr. 793-2816
FabrikantnummerMHF15-21NG1NSM
FabrikantSick
€ 87,00
Each
Aantal stuks
Optical Sensor Chassis Mount NPN Stainless Steel - -25°C +55°C - - 100 mA 16bar - - -
RS-stocknr. 794-3409
FabrikantnummerLFP2000-G1NMB
FabrikantSick
€ 779,00
Each
Aantal stuks
Guided Radar Vertical 0-10 V, 4-20 mA Stainless Steel - -20°C +150°C - - 100 mA 16bar PEEK - -
RS-stocknr. 794-3392
FabrikantnummerLFP2000-A4NMB
FabrikantSick
€ 364,00
Each
Aantal stuks
Guided Radar Vertical 0-10 V, 4-20 mA PBT - -20°C +100°C - - 100 mA 10bar PTFE - -
RS-stocknr. 793-2828
FabrikantnummerMHF15-21NG1TSM
FabrikantSick
€ 87,00
Each
Aantal stuks
Optical Sensor Chassis Mount NPN Stainless Steel - -25°C +55°C - - 100 mA 16bar - - -
RS-stocknr. 794-3389
FabrikantnummerLFP0500-A4NMB
FabrikantSick
€ 364,00
Each
Aantal stuks
Guided Radar Vertical 0-10V, NPN, 2 PNP, 4-20mA PBT - -20°C +100°C - - 100 mA 10bar PTFE - -
RS-stocknr. 794-3383
FabrikantnummerLFP1000-A4NMB
FabrikantSick
€ 364,00
Each
Aantal stuks
Guided Radar Vertical 0-10 V, 4-20 mA PBT - -20°C +100°C - - 100 mA 10bar PTFE - -
RS-stocknr. 175-5063
FabrikantnummerPFT-FRB1X0SF1OSSAMSSZ
FabrikantSick
€ 319,00
Each
Aantal stuks
Hydrostatic Level Sensor G1  Thread 2 Wire, 4 to 20 mA Stainless Steel 1.4571 - -20°C +80°C - 30V 20 mA 1bar - - -
RS-stocknr. 175-5064
FabrikantnummerPFT-FRBX10SF10SSAMSSZ
FabrikantSick
€ 319,00
Each
Aantal stuks
Hydrostatic Level Sensor G1  Thread 2 Wire, 4 to 20 mA Stainless Steel 1.4571 - -20°C +80°C - 30V 20 mA 0.1bar - - -
RS-stocknr. 175-5065
FabrikantnummerPFT-FRBX25SF1OSSAMSSZ
FabrikantSick
€ 319,00
Each
Aantal stuks
Hydrostatic Level Sensor G1  Thread 2 Wire, 4 to 20 mA Stainless Steel 1.4571 - -20°C +80°C - 30V 20 mA 0.25bar - - -
RS-stocknr. 175-5066
FabrikantnummerPFT-FRBX40SF1OSSAMSSZ
FabrikantSick
€ 319,00
Each
Aantal stuks
Hydrostatic Level Sensor G1  Thread 2 Wire, 4 to 20 mA Stainless Steel 1.4571 - -20°C +80°C - 30V 20 mA 0.4bar - - -
RS-stocknr. 183-7325
FabrikantnummerGRF18S-E234LV
FabrikantSick
€ 95,47
Each
Aantal stuks
Optical Point Level Switch G1/2 Thread NPN Stainless Steel - -25°C +55°C - 30V - 16bar - lteq/30 mA -
RS-stocknr. 175-5058
FabrikantnummerLFV200-XXHCLIPM
FabrikantSick
€ 353,00
Each
Aantal stuks
Vibrating Level Switch 1.5” Triclamp  Thread PNP PEI, Stainless Steel 1.4404 - -40°C +70°C - 30V 250 mA 64bar - - -
RS-stocknr. 183-7322
FabrikantnummerGRF18S-P234LV
FabrikantSick
€ 95,47
Each
Aantal stuks
Optical Point Level Switch G1/2 Thread PNP Stainless Steel - -25°C +55°C - 30V - 16bar - lteq/30 mA -
RS-stocknr. 175-5068
FabrikantnummerUP56-214178
FabrikantSick
€ 689,00
Each
Aantal stuks
Ultrasonic Level Sensor with display G2  Thread - PBT, PVDF, TPU - -25°C +70°C - 30V 20 mA 6bar - - -
RS-stocknr. 175-5059
FabrikantnummerLFV200-XXSGAIPM
FabrikantSick
€ 242,00
Each
Aantal stuks
Vibrating Level Switch G1  Thread PNP PEI, Stainless Steel 1.4404 - -40°C +70°C - 30V 250 mA 64bar - - -
RS-stocknr. 183-7323
FabrikantnummerGRF18S-F234LV
FabrikantSick
€ 95,47
Each
Aantal stuks
Optical Point Level Switch G1/2 Thread PNP Stainless Steel - -25°C +55°C - 30V - 16bar - lteq/30 mA -
RS-stocknr. 175-5062
FabrikantnummerLFV200-XXSGHIPM
FabrikantSick
€ 227,00
Each
Aantal stuks
Vibrating Level Switch G3/4” Thread PNP PEI, Stainless Steel 1.4404 - -40°C +70°C - 30V 250 mA 64bar - - -
RS-stocknr. 175-5061
FabrikantnummerLFV200-XXSGBIPM
FabrikantSick
€ 227,00
Each
Aantal stuks
Vibrating Level Switch G1/2 Thread PNP PEI, Stainless Steel 1.4404 - -40°C +70°C - 30V 250 mA 64bar - - -