Level switches

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Level switches | Choosing the right level switch
Level switches, like level sensors, are mainly used to determine the filling level in tanks, silos or storage containers. While the two terms can be considered almost synonymous, there is a real technical difference between them. In contrast to level sensors, which continuously measure the change in level, the level switch only indicates whether or not the level has reached a certain height. It is a one-time measurement. A detector therefore does not send a...
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magnetic float level switch
magnetic float level switch
FLS

Process pressure: 0 bar - 40 bar
Process temperature: -196 °C - 350 °C

... Float switches are also available with multiple switch points. Applications of the float switch Level measurement for almost all liquid media Pump and level control ...

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WIKA Alexander Wiegand SE & Co. KG
float level switch
float level switch
RLS-1000

Process temperature: -30 °C - 150 °C

Applications: - Level measurement of liquids in machine building - Control and monitoring tasks for hydraulic power packs, compressors and cooling systems Special features - Maximum reliability thanks to high-quality ...

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WIKA Alexander Wiegand SE & Co. KG
electro-optical level switch
electro-optical level switch
OLS-S, OLS-H

Process temperature: -269 °C - 400 °C

Applications: - Chemical, petrochemical, natural gas, offshore industries - Shipbuilding, machine building, refrigerator units - Power generating equipment, power plants - Process and drinking water treatment - Wastewater and environmental ...

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WIKA Alexander Wiegand SE & Co. KG
rotary paddle level switch
rotary paddle level switch
Rotonivo® RN 3000

Process pressure: 0.9 bar - 10 bar
Process temperature: -40 °C - 1,100 °C

The Rotonivo® RN 3000 is a level limit detection device which is suitable for any bulk products and in high-risk settings. It functions based on an easy and dependable measurement principle which requires no maintenance. ...

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UWT GmbH Level Control
rotary paddle level switch
rotary paddle level switch
Rotonivo® RN 4000

Process pressure: 0 bar - 0.8 bar
Process temperature: -40 °C - 80 °C

The Explosion-proof Rotary Paddle Level Switch is made of plastic and it is manufactured to utilize large amount of materials with lower mechanical load. The product has constant and standard functionality ...

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UWT GmbH Level Control
vibrating level switch
vibrating level switch
Vibranivo® VN 2000

Process pressure: -1 bar - 16 bar
Process temperature: -40 °C - 150 °C

The Vibranivo® VN 2000 Model is ideally suitable for fine grained and powdery bulk goods applications. It is built with a sturdy die-cast aluminum housing and with a protection rating of IP 66. This unit features a compact design, free ...

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UWT GmbH Level Control
capacitive level switch
capacitive level switch
Pointek CLS100

Process pressure: 0 bar - 10 bar
Process temperature: -30 °C - 100 °C

Pointek CLS100 is a compact 2-wire inverse frequency shift capacitance switch for level detection in constricted spaces, interfaces, solids, liquids, slurries and foam. Pointek CLS100’s short insertion ...

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Siemens Process Instrumentation
capacitive level switch
capacitive level switch
Pointek CLS200

Process pressure: 10 bar - 25 bar
Process temperature: -40 °C - 125 °C

Pointek CLS200 is a versatile inverse frequency shift capacitance level switch with optional rod/cable choices and configurable output, ideal for detection of liquids, solids, slurries, foam and interfaces. ...

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Siemens Process Instrumentation
capacitive level switch
capacitive level switch
Pointek CLS300

Process pressure: 0 bar - 35 bar
Process temperature: -40 °C - 400 °C

Pointek CLS200 is a versatile inverse frequency shift capacitance level switch with optional rod/cable choices and configurable output, ideal for detection of liquids, solids, slurries, foam and interfaces. ...

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Siemens Process Instrumentation
tuning fork level switch
tuning fork level switch
VEGASWING 51

Process pressure: 0 bar - 64 bar
Process temperature: -40 °C - 150 °C

Vibrating level switch for liquids For liquids (density: > 0.5 ... 2.5 g/cm³) Application area It detects the limit level reliably and with millimetre accuracy directly at the ...

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VEGA TECHNIQUE
vibrating level switch
vibrating level switch
VEGASWING 53

Process pressure: 0 bar - 64 bar
Process temperature: -40 °C - 150 °C

... liquid level switch with smallest dimensions. Independent of the mounting position, it detects the limit level reliably and with millimetre accuracy. The device can be used for full or ...

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VEGA TECHNIQUE
vibrating level switch
vibrating level switch
VEGASWING 61

Process pressure: 0 bar - 64 bar
Process temperature: -50 °C - 250 °C

Vibrating level switch for liquids For liquids (density: > 0.5 ... 2.5 g/cm³) – compact version Application area It detects the limit level reliably and with millimetre accuracy ...

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VEGA TECHNIQUE
vibrating level switch
vibrating level switch
VEGASWING 53

Process pressure: -1 bar - 64 bar
Process temperature: -40 °C - 150 °C

The VEGASWING 53 is used as a universal level switch in liquids with small dimensions. Independent of the mounting position, it detects reliably with millimetre accuracy the limit level. ...

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VEGA Grieshaber KG
capacitive level switch
capacitive level switch
VEGAPOINT 31

Process pressure: -1 bar - 25 bar
Process temperature: -40 °C - 115 °C

The VEGAPOINT 31 is a capacitive level sensor for level detection of fine-grained and powdery bulk solids. Typical applications are overfill and dry run protection. The small sensor can also be used in ...

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VEGA Grieshaber KG
capacitive level switch
capacitive level switch
VEGAPOINT 21

Process pressure: -1 bar - 25 bar
Process temperature: -40 °C - 115 °C

The VEGAPOINT 21 is a capacitive level sensor for level detection of water-based liquids. Typical applications are overfill and dry run protection. The small sensor can also be used in thin pipelines. • ...

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VEGA Grieshaber KG
magnetic float level switch
magnetic float level switch
NESOS R04 LS

Process pressure: -1 bar - 37 bar
Process temperature: -52 °C - 240 °C

Float switch in curved version The float switch is typically used to switch alarms, pumps, signal lamps, valves, and horns via a contact protection relay. When connected to intrinsically ...

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JUMO GmbH & Co. KG
magnetic float level switch
magnetic float level switch
A 01 041

Process pressure: 25 bar
Process temperature: 0 °C - 300 °C

... Switching element: Micro switch, change-over contact (SPDT) with silver contacts Switching capacity: 250 VAC, 5 A / 30 VDC, 5 A Fitting length (tank side): 226 mm Safety Integrity ...

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Trimod'Besta
magnetic float level switch
magnetic float level switch
A 01 05 series

Process pressure: 0 bar - 250 bar
Process temperature: 0 °C - 250 °C

... Safety Integrity Level (SIL): SIL 1 (Type AA 01 051: SIL 2) > Type A 01 052 Protection bellows silicone Safety Integrity Level (SIL): SIL 1 (Type AA 01 052: SIL 2) > Type A 01 053 Protection bellows ...

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Trimod'Besta
magnetic float level switch
magnetic float level switch
U3A 01 04

Process pressure: 25 bar
Process temperature: -30 °C - 80 °C

... 5 A / 30 VDC, 5 A Protection class: IP68 Cable length: 3 m or as required Cable type: Neoprene (H07RN-F) Safety Integrity Level (SIL): SIL 1 (Types U3AA 01 04, U5AA 01 04, U11AA 01 04: SIL 2)

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Trimod'Besta
vibrating level switch
vibrating level switch
Liquiphant FTL31

Process pressure: 40 bar
Process temperature: -40 °C - 150 °C

Liquiphant FTL31 is a point level switch for liquids. The FTL31 is designed for industrial applications in all industries, mainly the machinery industry. The Liquiphant is used for overfill ...

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Endress+Hauser AG
vibrating level switch
vibrating level switch
LFV200 series

Process pressure: 0 bar - 64 bar
Process temperature: -40 °C - 150 °C

... intelligent limit switch for all kinds of liquids The vibrating level switch of the LFV200 product family detects the pre-defined levels in liquid systems with maximum ...

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SICK
vibrating level switch
vibrating level switch
LBV301 series

Process pressure: 0 bar - 16 bar
Process temperature: -50 °C - 250 °C

... and cleanable The vibrating level switches in the LBV301 product family can be relied upon to signal full, empty, or demand states in bulk materials. The monoprobe design prevents bulk materials from jamming. The rugged ...

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SICK
vibrating level switch
vibrating level switch
LFV300

Process pressure: 0 bar - 64 bar
Process temperature: -50 °C - 250 °C

... robust – Tuning Forks for all kinds of liquids The LFV300 product family of universal vibrating level switches precisely detects predefined liquid levels in systems to the millimeter – even under difficult ...

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SICK
electro-optical level switch
electro-optical level switch
ELS-1100 series

Process pressure: 0 bar - 10.34 bar
Process temperature: 0 °C - 80 °C

Single-Point Level Switch is a compact, economical, no moving parts polysulfone level sensor with built-in switching electronics. A variety of mountings, power requirements and electrical ...

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GEMS SENSORS & CONTROLS
electro-optical level switch
electro-optical level switch
ELS-1100FLG series

Process pressure: 0 bar - 10.34 bar
Process temperature: 0 °C - 80 °C

... bacterial breeding grounds. ELS Series Level Switches are low cost, compact, optical level sensors with built-in switching electronics. With no moving parts, these small units are ideal for a variety ...

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GEMS SENSORS & CONTROLS
electro-optical level switch
electro-optical level switch
ELS-1100HT series

Process pressure: 0 bar - 10.34 bar
Process temperature: -40 °C - 100 °C

... electro-optic switch bodies-HTS versions are a mere 1/2" long! ELS Series Level Switches are low cost, compact, optical, level sensors with built-in switching electronics. With no ...

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GEMS SENSORS & CONTROLS
frequency sweep level switch
frequency sweep level switch
CleverLevel LBFS

Process pressure: -1 bar - 100 bar
Process temperature: -40 °C - 200 °C

Reliable in various media Wide variety of process connections For hygienic and industrial applications With marine, ATEX, WHG and cUlus approval Process temperatures up to 200 °C

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Baumer Group
capacitive level switch
capacitive level switch
CLS1 series

Process temperature: -40 °C - 116 °C

Dwyer model CLS1 capacitance level switch is useful in measuring solids, liquids and slurries with point-level accuracy. These are suitable for use in both metallic and non-metallic tanks ...

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DWYER
float level switch
float level switch
KFA-A

KFA-A Level switch Medium: oil Max. number of switching points Level: 3 Material pipe: brass Material float: PUR

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EUGEN WOERNER GmbH & Co. KG
float level switch
float level switch
KFA-V

KFA-V Level switch Medium: oil Max. number of switching points Level: 3 Material pipe: brass / stainless steel Material float: stainless steel

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EUGEN WOERNER GmbH & Co. KG
float level switch
float level switch
KFE-A

KFE-A Level switch Medium: Oil, Ester, Glycole Max. number of switching points Level: 2 Material pipe: Cu Material float: PUR/ stainless steel

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EUGEN WOERNER GmbH & Co. KG
vibrating level switch
vibrating level switch
OPTISWITCH 3000 C series

Process pressure: -1 bar - 16 bar
Process temperature: -50 °C - 250 °C

Vibration level switch for solid applications • Point level detection of powders and fine-grained bulk solids • Probe length: 220 mm / 8.7" • Density: <8 g/l / <0.49 lb/ft3 • -50…+250°C ...

vibrating level switch
vibrating level switch
OPTISWITCH

Process pressure: -1 bar - 160 bar
Process temperature: -196 °C - 450 °C

... OPTISWITCH 4000 is a vibration level switch for simple liquid applications. It is a universal and cost-effective device for level detection in small vessels. It detects low or high level ...

capacitive level switch
capacitive level switch
OPTISWITCH 6 series

Process pressure: -1 bar - 16 bar
Process temperature: -20 °C - 200 °C

... psig The OPTISWITCH 6500 is a capacitance level switch for level detection in hygienic applications or any environment requiring minimally invasive sensors. It detects low or high ...

float level switch
float level switch
LS Series

... Series Mechanical Level Switches are the most rugged and durable liquid point-level detection products in the industrial marketplace today. Overview ABB's LS Series ...

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ABB Measurement & Analytics
magnetic float level switch
magnetic float level switch
LMS200

Process temperature: 0 °F - 800 °F

The LMS200 electric switch is a magnetically actuated double pole double throw switch. When the LMS200 is mounted on a KM26 magnetic liquid level indicator, LS series cage level ...

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ABB Measurement & Analytics
capacitive level switch
capacitive level switch
A75 RF

Process pressure: 7, 10.3, 103 bar
Process temperature: -40 °C - 185 °C

The A75 RF level switch is used in dry bulk and liquid applications and special applications, such as, high temperature, corrosive environments, high pressure and special probe materials. Low Cost Totally ...

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ABB Measurement & Analytics
tank level detector
tank level detector
Sludge Finder 2

Process temperature: -20 °C - 50 °C

... software that can be used to record and save all the parameters from your sludge blanket level measurement applications. Continuous single or dual-channel level control High frequency gives high-reliability ...

tuning fork level switch
tuning fork level switch
8110 series

Process pressure: 0 bar - 64 bar
Process temperature: -40 °C - 100 °C

The Type 8110 is a filling level switch for liquids, using a tuning fork as the sensor element. It is designed for industrial use in all areas of process technology and can be used in ...

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BÜRKERT FLUID CONTROL SYSTEMS
multiphase level detector
multiphase level detector

... Reflectometry (TDR)-based, 24 VDC level detectors designed to accurately measure the various layers in interface level measurement applications. Encompassing a number of significant engineering accomplishments, ...

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MAGNETROL International
displacer level switch
displacer level switch
A10 series

Process pressure: 17, 55 bar
Process temperature: 38 °C - 260 °C

Single-Stage Switches Series A10 displacer type level measurement units are wide differential units calibrated to actuate as a liquid level reaches a given displacer and to deactuate when the level ...

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MAGNETROL International
displacer level switch
displacer level switch
B10 series

Process pressure: 17, 55 bar
Process temperature: 38 °C - 260 °C

... differential tandem switches that are factory calibrated. Each switch actuates at a different level. Displacer switch operation is based upon simple buoyancy, whereby a spring is loaded ...

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MAGNETROL International
conductive level switch
conductive level switch
DRS-303

Process temperature: -40 °C - 85 °C

The DRS-303 is manufactured by Simex. It is a liquid sensor type, that is especially designed for conducted liquid presence detection. T parameters of the detector are constant to allow detection of actual presence of liquid on its electrodes ...

conductive level switch
conductive level switch
LNM

Process pressure: 0 bar - 10 bar
Process temperature: 0 °C - 150 °C

... it is also possible to detect non-conductive media. The level switch is particularly suitable for use with foaming media because the foam itself is not detected. The output of the level ...

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KOBOLD Messring GmbH
magnetic float level switch
magnetic float level switch
M

Process pressure: 0 bar - 100 bar
Process temperature: 0 °C - 150 °C

Magnetic level switches are used for the monitoring and control of liquid levels in vessels. Magnetic level switches are manufactured to customer specification. An overview of types available ...

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KOBOLD Messring GmbH
broken finger float level switch
broken finger float level switch
RFS

Process pressure: 0 bar - 10 bar
Process temperature: 0 °C - 120 °C

... with the filling level of the liquid. The solenoid switches a reed contact. Depending on the mounting position of the device, the contact works as N/O or N/C contact with rising filling level. ...

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KOBOLD Messring GmbH
magnetic float level switch
magnetic float level switch
DLF 8980

Process pressure: 0 bar - 20 bar
Process temperature: -30 °C - 105 °C

... combination with a comprehensive set of options make the DLF 8980 suitable for a wide range of industrial applications. The magnetic float which activates reed contacts inside the guiding rod provides ...

float level switch
float level switch
TFS

Process pressure: 0 bar - 50 bar
Process temperature: -30 °C - 180 °C

... Up to 6 switch points Protection IP65 Optional: Temperature sensor PT1000 or thermostat Potted electrical contacts About The principle of operation of these instruments is based on the drive of one ...

electro-optical level switch
electro-optical level switch
TOS

Process pressure: 0 bar - 260 bar
Process temperature: -40 °C - 85 °C

Main features No moving parts Hermetic construction, sealed electronics Minimum degree of protection IP65 The optical sensor is located in a metallic body which includes a polysulfone prism inside of which there is inserted ...

magnetic float level switch
magnetic float level switch
LS-240E

Process pressure: 10 bar
Process temperature: -20 °C - 80 °C

Float switch for a secure, selective level measurement Through their design and the selection of materials, the float switches are specially developed for use in shipbuilding or in rough environments. Low ...

magnetic float level switch
magnetic float level switch
LS-255E with plug connector

Process pressure: 10 bar
Process temperature: -20 °C - 80 °C

... uncritical float installation ✔️ no thread, no tool, no loose parts *in comparison to standard level switch 010-5003 Float switch for a secure, selective level ...

tuning fork level switch
tuning fork level switch
SC series

Process pressure: 40, 25 bar
Process temperature: -40 °C - 150 °C

... USE 。High, low and intermediate level indication in tanks 。Tank fill/empty control 。PLC/DCS level sensing input 。Level detection in plastic or metallic tanks 。Compact and small ...

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FineTek Co., Ltd.
frequency sweep level switch
frequency sweep level switch
SIS series

Process pressure: 1 bar - 40 bar
Process temperature: -40 °C - 85 °C

... in the CIP and SIP cleaning applications, the surface roughness (Ra) level can be adjusted according to customer's needs, suitable for use in pharmaceutical and food processing industry applications. Working ...

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FineTek Co., Ltd.
electro-optical level switch
electro-optical level switch
SD series

Process pressure: 60, 65 bar
Process temperature: -10 °C - 100 °C

... a variety of liquid level detection 。Unique SD22 design, switch body and tip disconnects USE 。Machine protection of fluid levels 。High and low level detection ...

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FineTek Co., Ltd.
gamma ray level switch
gamma ray level switch
Mini-Switch LB 471

Process temperature: -30 °C - 60 °C

Level switch measurement for min./max. alarm The level switch measuring system LB 471 is used for point level measurements, providing either high ...

capacitive level switch
capacitive level switch
PROCAP IX & IIX

Process pressure: 500 psi
Process temperature: 0 °C - 260 °C

These intrinsically safe capacitance probes provide interference-free operation, working far below the RF level of 9 KHz at just 6 KHz, and will not interfere with two-way radios or other equipment operating in the radio ...

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BinMaster
capacitive level switch
capacitive level switch
PROCAP I & II

Process pressure: 500 psi
Process temperature: 0 °C - 260 °C

... a point level indicator, commonly used for high or low level detection in a bin, tank or silo. BinMaster capacitance probes offer fail-safe operation, “Quick-Set” calibration, plus interference-free ...

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BinMaster
capacitive level switch
capacitive level switch

Process temperature: 0 °C - 538 °C

... , this probe is perfect for a variety of solid materials or slurries. One simple use of bendable probe is for high and low level detection in smaller mixers or containers employed in food processing units.

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BinMaster
How to choose this product
level-switch

A level switch, or detector monitors levels in open or closed containers.

Applications

These devices are found in every industrial sector. They also are installed with pumps to prevent them from operating dry.

Technologies

There are different methods of detecting levels within a container. These include the use of floats, pendulums or rotating paddles. Others employ optical, ultrasound, microwave, capacitive or conductive systems.

How to choose

Choice will depend on the liquid or loose solid material whose level is to be measured. Other factors include temperature, pressure, explosion risk, the structure of the container and other aspects of the operating environment.