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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vibrating level switch
vibrating level switch
VEGASWING 53

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

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

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

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
float level switch
float level switch
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

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

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
rotary paddle level switch
rotary paddle level switch
Rotonivo® RN 3000

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

Rotonivo® - proven allrounder for point level measurement The Rotonivo® rotary paddle level switch from UWT operates reliably and maintenance-free and offers a compatible solution for ...

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

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

Rotonivo® - proven allrounder for point level measurement The Rotonivo® rotary paddle level switch from UWT operates reliably and maintenance-free and offers a compatible solution for ...

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UWT GmbH
rotary paddle level switch
rotary paddle level switch
Rotonivo® RN 6000

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

Rotonivo® - proven allrounder for point level measurement The Rotonivo® rotary paddle level switch from UWT operates reliably and maintenance-free and offers a compatible solution ...

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UWT GmbH
tuning fork level switch
tuning fork level switch
VEGASWING 51

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

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

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

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
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. ABB's LS Series Mechanical ...

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ABB Measurement & Analytics
float level switch
float level switch
MS10

Process temperature: -40 °C - 150 °C
Process pressure: 103, 345 bar

ABB's MS10 Level Switch is the most rugged and durable liquid buoyancy point-level switch product in the industrial marketplace today. ...

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

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
frequency sweep level switch
frequency sweep level switch
CleverLevel LBFS

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

Reliable in diverse media Wide variety of process connections For hygienic and industrial applications With marine, WHG and cULus approval Optionally available with Ex certification

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Baumer Group
capacitive level switch
capacitive level switch
Pointek CLS100

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

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

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

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
vibrating level switch
vibrating level switch
OPTISWITCH 3000 C series

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

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 ...

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KROHNE Messtechnik GmbH
vibrating level switch
vibrating level switch
OPTISWITCH

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

... …925 psig The 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 ...

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KROHNE Messtechnik GmbH
capacitive level switch
capacitive level switch
OPTISWITCH 6700

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

The OPTISWITCH 6700 is a capacitance level switch for hygienic and general industrial applications requiring IO-Link communication. It detects high or low level and is ...

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KROHNE Messtechnik GmbH
magnetic float level switch
magnetic float level switch
A 01 041

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

... aluminium Flange square 92 x 92 mm, 92 mm PCD Switch element Microswitch SPDT with silver contacts Switch rating 250 VAC, 5 A / 30 VDC, 5 A Overall length (tank) 226 mm Safety integrity ...

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

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

... Bellow material Perbunan Safety Integrity Level (SIL) SIL 1 (Type AA 01 051: SIL 2) Approvals ABS, BV, ClassNK, DNV-GL, LR, RINA, RMRS Bellow material Silicon Safety Integrity Level ...

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

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

... 92 x 92 mm, PCD 92 mm Switch element - Microswitch SPDT with silver contacts Switch rating - 250 VAC, 5 A/30 VDC, 5 A Length of encapsulated cable - 3 m, or as required Cable type - Neoprene (H07 ...

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Trimod'Besta
ultrasonic level detector
ultrasonic level detector
Sludge Finder 2

Process temperature: -20 °C - 50 °C

... echo processing algorithms to identify the sludge interface level using state-of-the-art technology only found in this unit. Why Measure Sludge Level? Sludge blanket level control ...

magnetic float level switch
magnetic float level switch
NESOS R40 LSH

Process temperature: -52 °C - 240 °C
Process pressure: -1 bar - 47 bar

Float switch in horizontal design The horizontal float switch can be easily mounted, e.g. on the side of a tank wall. Due to its construction it is suitable for the minimum and maximum limit level ...

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JUMO GmbH & Co. KG
electronic level switch
electronic level switch
FTL51B

Process temperature: -50 °C - 150 °C
Process pressure: 100 bar

he Liquiphant FTL51B is specialized for the process industry and developed to be used directly in SIL2 and SIL3 applications. You conduct periodic proof tests according to SIL or WHG mobile with an intuitive wizard. At ...

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Endress+Hauser AG
float level switch
float level switch
ABZMS-41-1X/0370/M2-T70F/DC-K24

Process pressure: 0 bar - 1 bar

Float switch combined with temperature contact Float switch combined with temperature sensor Switching points: 220 mm /140 mm Float switches are switching devices operated ...

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Bosch Rexroth - Industrial Hydraulics
tuning fork level switch
tuning fork level switch
8111

Process temperature: -50 °C - 150 °C
Process pressure: 0 bar - 64 bar

The Type 8111 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 ...

electronic level switch
electronic level switch
LLS 4000

Process temperature: -50 °C - 120 °C
Process pressure: 140 bar

... 2 W Product accessories - Liq. level switch accessories Product description - Liquid Level Switch Product group - Switches and thermostats Product ...

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DANFOSS Refrigeration & Air Conditioning
magnetic float level switch
magnetic float level switch
FLS

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

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

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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
magnetic float level switch
magnetic float level switch
Minimelder-R

Process temperature: -5 °C - 55 °C

... the liquid level falls and the probe is no longer submerged in the liquid. The Maximelder probe is mounted in the top area of the tank and generates an alarm when the liquid reaches the probe. The liquid levels ...

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AFRISO-EURO-INDEX
conductive level switch
conductive level switch
CoFox® ELT 8

Process temperature: -10 °C - 60 °C

... a second electrode via the liquid. The relay outputs switch. The sensitivity is adjustable. 2 voltage-free relay contacts are provided for switching functions. Level switch: The ...

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AFRISO-EURO-INDEX
conductive level switch
conductive level switch
CoFox® ELT 680

Process temperature: -10 °C - 60 °C

• Specially designed for applications in the food industry • Detection of interface layers between liquids with different levels of conductivity (product, foam) • Adjustable delay helps to avoid unwanted ...

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AFRISO-EURO-INDEX
electro-optical level switch
electro-optical level switch
BL series

Liquid Level Photoelectric Sensors The BL series photoelectric liquid level sensors can detect the presence or absence of liquid in transparent pipes measuring 6 to 13 mm in diameter and less than ...

float level switch
float level switch
ER-104

Process temperature: -30 °C - 80 °C

For limit level detection in conductive liquids as well as control jobs in connection with conductive rod and suspension electrodes -Narrow construction – width 22.5 mm -Adjustable sensitivity -Closed ...

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NIVUS GmbH
conductive level switch
conductive level switch
ER-142

Process temperature: -25 °C - 80 °C

For limit level detection of conductive liquids as well as control of conductive liquids in Ex areas, for connection of conductive rod and suspension electrodes -Ex-ia version, Zone 0 -Optical alarm and operation ...

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NIVUS GmbH
conductive level switch
conductive level switch
ER-107/B

Process temperature: -20 °C - 90 °C

... is interrupted (e.g. cable break) this is detected and displayed by the ER-107 and the source contact switches to alarm status. When the filling level of the container reaches the conductive pickup's ...

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NIVUS GmbH
float level switch
float level switch
BIP STOP

Process temperature: 85 °C
Process pressure: 0 bar - 3.5 bar

... and low level in the same tank whose hysteresis does not exceed 1.5 meter. These float level switches are used wherever magnetic level controllers can not be used because of impurities ...

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ATMI
tilt level switch
tilt level switch
SOBA SMALL

Process temperature: 85 °C
Process pressure: 0 bar - 3.5 bar

This level regulator is technically similar to SOBA but smaller in size, ideal for small tanks. It detects the level by tilting the float which activates the contact connected to a panel control , ...

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ATMI
tilt level switch
tilt level switch
SOBA

Process temperature: 85 °C
Process pressure: 0 bar - 3.5 bar

... low level, the other as a high level, it is also possible to regulate severals levels. The SOBA level regulator are equipped with an external loaded resin ballast ...

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ATMI
thermal level switch
thermal level switch
FLT93B

Process temperature: -40 °C - 177 °C
Process pressure: 240 bar

... FLT93B BASIC level switch is available with all of the below listed standard features for a very attractive price and with quick delivery as soon as 2 business days ARO. Applications Interface and ...

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FCI Fluid Components International
thermal level switch
thermal level switch
FLT93M

Process temperature: -20 °C - 260 °C
Process pressure: 240 bar

... multiple process sensing and switching requirements. Applications Tank level monitoring Sump level monitoring Mixing level/interface monitoring Specifications For Level/Interface ...

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FCI Fluid Components International
thermal level switch
thermal level switch
FLT93S

Protects sensors from highly corrosive processes in which acids and caustic chemicals condense on the sensor. Description Product Summary Protects sensors from highly corrosive processes in which acids and caustic chemicals condense ...

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FCI Fluid Components International
float level switch
float level switch
FLPV series

Process temperature: -20 °C - 79 °C
Process pressure: 10 bar

... vertical float switch range which has been designed to give the user a long reach float switch with a number of switching options, to cater for a wide variety of system requirements. Manufactured in ...

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Sensata Technologies
float level switch
float level switch
LLF40 series

Process temperature: -20 °C - 105 °C

... Mounting of this series requires access to the inside of the tank. These devices are particularly suitable for detecting low levels of liquids in the bottom of tanks and containers, and for lower SG liquids. Typical ...

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Sensata Technologies
float level switch
float level switch
RSF166 series

Process temperature: -10 °C - 85 °C

The RSF166 float switch series is designed to offer a number of switching options to meet a variety of system requirements. These are manufactured in PPS (Polyphenylene Sulphide), which is compatible with a wide range ...

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Sensata Technologies
electro-optical level switch
electro-optical level switch
HPQ-T

Just by mounting the switch on a pipe, the surface of the liquid can be easily detected. Description The HPQ-T is designed specifically for liquid level detection by non-contact methods in clear or ...

electro-optical level switch
electro-optical level switch
HPF-T03 series

Process temperature: -25 °C - 70 °C
Process pressure: -49,000 Pa - 490,000 Pa

... light beam. This Fail-safe detection is available by using two different sensing methods for the upper and lower limits on the level of liquid in a tank. Description Unlike all known competitive models, the HPF-T032(E) ...

liquid level switch
liquid level switch
HPF-D027, HPF-D033

All-resin structure ensures no metal contamination. The HPF-D027 and -D033 are both made out of PFA tubing with no metal parts, even on the inside. Features Problems due to liquid accumulation are reduced by Azbil Corporation's ...

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 ...

capacitive level switch
capacitive level switch
KGF series

Process temperature: -25 °C - 75 °C

Integral switch Series KGF PTFE housing M14x1 M30x1.5 AC 20...250 V DC 10...55 V Level controller Level controllers without moveable parts are available in various versions ...

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EGE-Elektronik Spezial-Sensoren GmbH
capacitive level switch
capacitive level switch
KGF/KGMR series

Process temperature: -25 °C - 75 °C

Integral switch Series KGF/KGMR G3/4 thread AC 20...250 V DC 10...55 V Level controller Level controllers without moveable parts are available in various versions and are extremely ...

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EGE-Elektronik Spezial-Sensoren GmbH
capacitive level switch
capacitive level switch
KGFR series

Process temperature: -25 °C - 75 °C

Integral switch Series KGFR PTFE housing G1 thread AC 20...250 V DC 10...55 V Level controller Level controllers without moveable parts are available in various versions and ...

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EGE-Elektronik Spezial-Sensoren GmbH
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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.