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. 122-8434
Fabrikantnummer232181
FabrikantGems Sensors
€ 184,35
Each
Aantal stuks
Electro Optic Vertical/Horizontal NC Brass 6in - -40°C +110°C - 12V - 17bar - 10 mA
RS-stocknr. 193-6738
FabrikantnummerLLC103101
€ 46,90
Each
Aantal stuks
Liquid Level Switch Threaded Mount Transistor Polysulfone - - -40°C +125°C - 15.4V 2.5 mA 7bar - 2.5 mA
RS-stocknr. 137-2040
FabrikantnummerLR16-5021-20-01
FabrikantFlowline
€ 4.002,86
Each
Aantal stuks
Pulse Radar Liquid Level Transmitter Vertical 2 Wire, 4 to 20 mA, HART 7 Stainless Steel 316L - - -40°C +150°C - 26.4V 20 mA 10bar Silicone 22.5 mA
RS-stocknr. 804-3976
Fabrikantnummer7ML5731-1AA11-1DA0
FabrikantSiemens
€ 604,44
Each
Aantal stuks
Vibrating Level Switch Vertical PNP Stainless Steel - - -40°C +150°C - - 5 A 10bar - -
RS-stocknr. 193-6799
FabrikantnummerPOS287413
€ 231,65
Each
Aantal stuks
Liquid Level Switch Threaded Mount PNP Stainless Steel 304 - - -25°C +140°C - 30V 25 mA 80bar - 25 mA
RS-stocknr. 193-6754
FabrikantnummerLLC610D3L24-003
€ 45,09
Each
Aantal stuks
Liquid Level Switch Threaded Mount NPN Polysulfone - - -40°C +125°C - 30V 7.5 mA 7bar - 7.5 mA
RS-stocknr. 188-5255
FabrikantnummerCD34CNFLFPOT5
FabrikantCarlo Gavazzi
€ 80,94
Each
Aantal stuks
Conductive Plug PNP Plastic 300mm - -25°C +80°C - 30V 13 mA - - 100 mA
RS-stocknr. 869-7696
FabrikantnummerILSE-G0700-5
FabrikantCynergy3
€ 212,30
Each
Aantal stuks
Pressure Chassis Mount 4-20mA Stainless Steel - - - - - 32V 28 mA 50bar - -
RS-stocknr. 193-6737
FabrikantnummerLLC102101
€ 46,90
Each
Aantal stuks
Liquid Level Switch Threaded Mount Transistor Polysulfone - - -40°C +125°C - 15.4V 2.5 mA 7bar - 2.5 mA
RS-stocknr. 144-9333
Fabrikantnummer84800025
FabrikantXylem
€ 748,93
Each
Aantal stuks
10 Sensor Probe 3 m Bracket Mounted - - - - - - - - - - - -
RS-stocknr. 377-9822
FabrikantnummerVC5510PNOPT
FabrikantCarlo Gavazzi
€ 44,77
Each
Aantal stuks
Capacitance - PNP ABS, Polycarbonate 1.5m - 0°C +50°C - 30V 100 mA - - -
RS-stocknr. 144-9332
Fabrikantnummer84800021
FabrikantXylem
€ 714,15
Each
Aantal stuks
10 Sensor Probe 2.5 m Bracket Mounted - - - - - - - - - - - -
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