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 sensor’s 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 Communication Protocol Minimum Operating Temperature Maximum Operating Temperature Maximum AC Voltage Maximum DC Voltage Maximum Current Maximum Pressure Gasket Material Current Rating
RS-stocknr. 892-9754
Fabrikantnummer3105HP3FSCI1
FabrikantRosemount
€ 1.060,54
Each
Aantal stuks
Level Transmitter Top Mount Relay Glass Filled Nylon - - -30°C +70°C - 30 (Hazardous area) V, 40 (Non-Hazardous area) V 21.75 mA 3bar - -
RS-stocknr. 889-1356
FabrikantnummerDL14-11
FabrikantFlowline
€ 440,95
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Multi Function Ultrasonic Transmitter Vertical Relay Polycarbonate 1.2m - -35°C +60°C - 24V 20 mA 30psi Viton -
RS-stocknr. 124-0116
FabrikantnummerLM50-1001-1
FabrikantFlowline
€ 43,83
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Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 794-3383
FabrikantnummerLFP1000-A4NMB
FabrikantSick
€ 397,50
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Guided Radar Vertical 0-10 V, 4-20 mA PBT - IO-LINK -20°C +100°C - - 100 mA 10bar PTFE -
RS-stocknr. 746-7526
Fabrikantnummer1SVR402902R0000
FabrikantABB
€ 20,83
Each
Aantal stuks
Electrode - - Steel - - - - - - - - - -
RS-stocknr. 889-1453
FabrikantnummerLD31-S131
FabrikantFlowline
€ 854,36
Each
Aantal stuks
Pressure Level Transmitter Horizontal, Vertical 2 Wire Buna-N, Stainless Steel 316, Stainless Steel 316L 18.3m - -18°C +66°C - 30V 20 mA 20psi - -
RS-stocknr. 377-9816
FabrikantnummerVC5510PNOP
FabrikantCarlo Gavazzi
€ 47,15
Each
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Capacitance Switch Chassis Mount PNP ABS/Polycarbonate 1.5m - 0°C +50°C - 30V 100 mA - - -
RS-stocknr. 756-4289
FabrikantnummerRSF88H100R
FabrikantCynergy3
€ 19,53
Each
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Sensor Horizontal External NO/NC Polypropylene 1m - -20°C +100°C - - 1 A - - -
RS-stocknr. 794-3437
Fabrikantnummer2120D1AV1NAAA0000
FabrikantRosemount
€ 316,50
Each
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Fork Level Switch Side or Top Mount Relay Glass Filled Nylon - - -40°C +150°C - - 500 mA 100bar Non Asbestos Sheet -
RS-stocknr. 804-4146
Fabrikantnummer7ML1123-0CA50
FabrikantSiemens
€ 1.215,90
Each
Aantal stuks
Ultrasonic - - - - - -40°C +95°C - - - - - -
RS-stocknr. 869-7703
FabrikantnummerILSE-G0250-D
FabrikantCynergy3
€ 202,83
Each
Aantal stuks
Pressure Chassis Mount 0.5-4.5V Stainless Steel - - - - - 32V - 20bar - -
RS-stocknr. 776-1608
Fabrikantnummer072.31
FabrikantFinder
€ 14,88
Each
Aantal stuks
Electrode Vertical Relay Stainless Steel - - 0°C +80°C - - - - - -
RS-stocknr. 794-3389
FabrikantnummerLFP0500-A4NMB
FabrikantSick
€ 385,12
Each
Aantal stuks
Guided Radar Vertical 0-10V, 2 PNP, 4-20mA, NPN PBT - IO-LINK -20°C +100°C - - 100 mA 10bar PTFE -
RS-stocknr. 768-1962
FabrikantnummerSONS61.EEEA
FabrikantVega
€ 1.089,69
Each
Aantal stuks
Vibrating Rod - Relay - - - - - - - 20 mA - - -
RS-stocknr. 857-7781
FabrikantnummerVP02E
FabrikantCarlo Gavazzi
€ 125,63
Each
Aantal stuks
Optical Sensor Cable NPN Polysulfone 2m - -20°C +80°C - - 200 mA 10bar - -
RS-stocknr. 768-1956
FabrikantnummerSONS61.EXXX
FabrikantVega
€ 713,72
Each
Aantal stuks
Vibrating Rod - Relay - - - - - - - 20 mA - - -
RS-stocknr. 857-3212
FabrikantnummerVPC310
FabrikantCarlo Gavazzi
€ 157,62
Each
Aantal stuks
Conductive Chassis Mount Relay PVC 2m - 0°C +60°C - - - 2bar - -
RS-stocknr. 793-2828
FabrikantnummerMHF15-21NG1TSM
FabrikantSick
€ 89,24
Each
Aantal stuks
Optical Sensor Chassis Mount NPN Stainless Steel - - -25°C +55°C - - 100 mA 16bar - -
RS-stocknr. 780-0318
FabrikantnummerOLS200D3LSH
FabrikantCynergy3
€ 38,55
Each
Aantal stuks
Optical Sensor Chassis Mount Transistor Polysulfone 250mm - -25°C +80°C - - 100 mA 7bar - -
RS-stocknr. 780-0321
FabrikantnummerOLS210D324-003
FabrikantCynergy3
€ 102,00
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Optical Sensor Chassis Mount Transistor Polysulfone 250mm - -40°C +125°C - - 1 A 7bar - -
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