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. 804-4140
Fabrikantnummer7ML1106-2BA200A
FabrikantSiemens
535,24 €
Each
Aantal stuks
Ultrasonic - - - 10m - -20°C +65°C - - - - - -
RS-stocknr. 493-7186
Fabrikantnummer7ML5221-1BB11
FabrikantSiemens
973,80 €
Each
Aantal stuks
Ultrasonic - - PBT - - -40°C +85°C - - 20 mA - - -
RS-stocknr. 804-3856
Fabrikantnummer7ML5501-0JA70
FabrikantSiemens
398,81 €
Each
Aantal stuks
Capacitance Switch Vertical Relay Stainless Steel - - -30°C +100°C - - - 10bar - -
RS-stocknr. 804-4137
Fabrikantnummer7ML1115-3CA30
FabrikantSiemens
541,80 €
Each
Aantal stuks
Ultrasonic - - - - - -20°C +95°C - - - - - -
RS-stocknr. 804-4130
Fabrikantnummer7ML1115-0CA30
FabrikantSiemens
541,80 €
Each
Aantal stuks
Ultrasonic - - - - - -20°C +95°C - - - - - -
RS-stocknr. 804-4112
Fabrikantnummer7ML1201-1FE00
FabrikantSiemens
1.008,00 €
Each
Aantal stuks
Ultrasonic Vertical Relay - - - -40°C +60°C - - - - - -
RS-stocknr. 804-4124
Fabrikantnummer7ML1100-0BA20
FabrikantSiemens
669,60 €
Each
Aantal stuks
Vibrating Rod - - - - - -40 °C, -20°C +60 °C, +73°C - - - - - -
RS-stocknr. 804-3866
Fabrikantnummer7ML5650-1BA00-0HB0
FabrikantSiemens
837,00 €
Each
Aantal stuks
Capacitance Switch Vertical Relay Stainless Steel - - -40°C +400°C - - - 35bar - -
RS-stocknr. 513-2449
Fabrikantnummer7ML5430-2BE10
FabrikantSiemens
1.188,68 €
Each
Aantal stuks
Radar - - PBT - - -40°C +80°C - - 20 mA 3bar - -
RS-stocknr. 493-7192
Fabrikantnummer7ML5221-1DB11
FabrikantSiemens
1.150,20 €
Each
Aantal stuks
Ultrasonic - - PBT - - -40°C +85°C - - 20 mA - - -
RS-stocknr. 513-2427
Fabrikantnummer7ML5610-0BD20
FabrikantSiemens
212,40 €
Each
Aantal stuks
Capacitance - Relay Polyphenylene Sulfide - - -40°C +85°C - - 20 mA 10bar - -
Nieuw
RS-stocknr. 210-7469
Fabrikantnummer7MF1572-1CA10
FabrikantSiemens
502,00 €
Each
Aantal stuks
Hydrostatic Level Transmitter Cable 2 Wire Stainless Steel - - - - - - - - - -
RS-stocknr. 804-3963
Fabrikantnummer7ML5746-1BA00-1AA0
FabrikantSiemens
557,10 €
Each
Aantal stuks
Vibrating Level Switch Vertical Relay Stainless Steel - - -50°C +250°C - - 400 mA 64bar - -
RS-stocknr. 804-3967
Fabrikantnummer7ML5735-2AA11-0AA0
FabrikantSiemens
303,33 €
Each
Aantal stuks
Vibrating Level Switch Vertical Relay - - - -40°C +150°C - - 8 A 10bar - -
RS-stocknr. 804-4159
Fabrikantnummer7ML1106-1BA200A
FabrikantSiemens
520,95 €
Each
Aantal stuks
Ultrasonic - - - - - -20°C +65°C - - - - - -
RS-stocknr. 144-2575
Fabrikantnummer7ML5201-0FA0
FabrikantSiemens
1.111,67 €
Each
Aantal stuks
Ultrasonic Clamp Mount - PBT - - -30°C +60°C - 30V - - - 25 mA
Nieuw
RS-stocknr. 210-7472
Fabrikantnummer7MF1572-1FA10
FabrikantSiemens
502,00 €
Each
Aantal stuks
Hydrostatic Level Transmitter Cable 2 Wire Stainless Steel - - - - - - - - - -
RS-stocknr. 113-705
Fabrikantnummer7ML5430-2BA10
FabrikantSiemens
1.756,00 €
Each
Aantal stuks
Radar Vertical - PBT - - -40°C +80°C - - 20 mA 30bar - -
Nieuw
RS-stocknr. 210-7473
Fabrikantnummer7MF1572-1HA10
FabrikantSiemens
578,00 €
Each
Aantal stuks
Hydrostatic Level Transmitter Cable 2 Wire Stainless Steel - - - - - - - - - -
RS-stocknr. 804-3850
Fabrikantnummer7ML5501-0EA70
FabrikantSiemens
302,00 €
Each
Aantal stuks
Capacitance Switch Vertical Relay Stainless Steel - - -30°C +100°C - - - 10bar - -