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 detector
vibrating level detector
Vibranivo® VN 7000

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

VIBRATION LEVEL SWITCH - LIQUID FORK The compact and robust solution for safe level monitoring for all types of liquids. Versatile, extensive configuration options, corrosion-resistant ...

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UWT GmbH
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
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
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
liquid level switch
liquid 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
liquid level switch
liquid level switch
Lidec

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

... liquid level switches are liquid level sensors for overfill protection that ensure safety as well as simpler, cost-effective maintenance.​​​​ What Is It? Lidec is a no-moving-parts liquid level ...

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
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 ...

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
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 switches are switching devices operated by a float moved by fluid. Two switching contacts with temperature contact Switching points: ...

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Bosch Rexroth - Industrial Hydraulics
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

... 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 ...

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KROHNE Messtechnik GmbH
capacitive level switch
capacitive level switch
OPTISWITCH 6700

Process temperature: -40 °C - 115 °C
Process pressure: -1 bar - 100 bar

capacitance level switch OPTISWITCH 6700 The OPTISWITCH 6700 is a capacitance level switch for hygienic and general industrial applications requiring ...

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KROHNE Messtechnik GmbH
liquid level switch
liquid 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
float level switch
float level switch
LS

... 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 Level ...

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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. The MS10 is a ...

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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
magnetic float level switch
magnetic float level switch
FLS

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

... potentialfree. Float switches are also available with multiple switch points. The switching functions always refer to a rising liquid level: Normally open, normally closed or change-over ...

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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 series

Process temperature: -269 °C - 400 °C

... made using a separate model OSA-S switching amplifier Description The model OLS optoelectronic level switch is used for the detection of limit levels in liquids. This is widely ...

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WIKA Alexander Wiegand SE & Co. KG
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
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
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 ...

float level switch
float level switch
IEG-E23

Process temperature: -20 °C - 100 °C
Process pressure: 0 bar - 10 bar

... its travel, meets the built-in Reed switch at the pre-established point, the contact, stimulated by the magnet housed in the float, opens or closes, thus having the possibility of remotely sending a luminous, acoustic ...

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Fratelli Giacomello
magnetic float level switch
magnetic float level switch
IEG-TC series

Process temperature: -20 °C - 120 °C
Process pressure: 0 bar - 10 bar

Electromagnetic level indicators to one or two contacts 1/2" Bsp threaded Connection SPST or SPDT Contacts USE: Made to ensure, with maximum safety, the minimum or minimum and maximum levels of liquids ...

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Fratelli Giacomello
magnetic float level switch
magnetic float level switch
IEG-TC series

Process temperature: -20 °C - 120 °C
Process pressure: 0 bar - 10 bar

Electromagnetic level indicators to one or two contacts 3/4" Bsp threaded Connection SPST or SPDT Contacts USE: Made to ensure, with maximum safety, the minimum or maximum level of liquids in tanks ...

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Fratelli Giacomello
multiphase level detector
multiphase level detector
Genesis™ ED1

Process temperature: -45 °C - 204 °C
Process pressure: 19 bar - 70 bar

... 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 - AMETEK
ultrasonic level switch
ultrasonic level switch
Echotel® 910

Process temperature: -40 °C - 121 °C
Process pressure: 55, 103 bar

... ultrasonic level switches utilize ultrasonic contact technology for measuring level in clean liquid applications. These integrally mounted level switches offer either a 8-amp DPDT gold ...

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Magnetrol - AMETEK
ultrasonic level switch
ultrasonic level switch
Echotel® 940

Process temperature: -40 °C - 85 °C
Process pressure: 138 bar

Echotel® Model 940 and 941 Ultrasonic Level Switches are compact integral units that utilize pulsed signal technology to perform high or low level measurement in a wide variety of liquid applications. ...

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Magnetrol - AMETEK
float level switch
float level switch
MF series

Process temperature: 0 °C - 50 °C

is a float switch that turns up and down using the weight as the fulcrum. It is designed to be the smallest possible size. It is available in two types; contact "a" (normally-open contact) and contact "b" (normally-close ...

float level switch
float level switch
RF

Process temperature: 0 °C - 50 °C

is a float switch that turns up and down using the weight as the fulcrum. It can detect cut-in and cutout water levels with single float. The "Snap on-off" action ensures stable operations in clean water, ...

float level switch
float level switch
MC

Process temperature: 0 °C - 50 °C

is a heavy-duty type float switch with a shock absorber. Having equipped with a high grade micro switch, the MC-2 assures trouble-free operation in the liquid containing much suspended solids and floating ...

electro-optical level switch
electro-optical level switch
OSV series

... Sensor Switch is a non-invasive means for detection of a HI or LOW flow. This sensor is ideal for signaling an alarm, cutoff valve, or other device when the float passes the detector (alarm, valve, etc. are not included). ...

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
FLT93S

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

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FCI Fluid Components International
thermal level switch
thermal level switch
FLT93F

Process temperature: -73 °C - 454 °C
Process pressure: 240 bar

... requirements. Liquid Point Level Detection/Alarm Interface and sump level detection Interface/sump level detection in separation vessels Agitation detection Interface/level ...

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FCI Fluid Components International
conductive level switch
conductive level switch
DRS-303

Process temperature: -40 °C - 85 °C

push-pull output small dimensions additional reference electrode 3 m wire length Liquid sensor type DRS-303 is designed for conducted liquid presence detection. Parameters of the detector have been fixed to allow ...

magnetic float level switch
magnetic float level switch
LM1GSIA

Process temperature: -10 °C - 80 °C
Process pressure: 0 bar - 10 bar

Level Switches with Stop Ring Actuation point - LM1 – 1 actuation point NC/NO contact / LM2 – 1 actuation point SPDT contact / LMM1 – 2 actuation points/floats NC/NO contacts Electrical connection - Lead wires L. ...

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ELETTROTEC s.r.l.
magnetic float level switch
magnetic float level switch
LM series

Process temperature: -10 °C - 80 °C
Process pressure: 0 bar - 10 bar

ctuation point - LM1 – 1 actuation point contact NC/NO / LM2 – 1 actuation point contact SPDT / LMM1 – 2 actuation points NC/NO Mounting - GIA – Flange Ø 92 / GTIA – Thread G2” Switching capacity - LM1/LMM1 – 60W/VA / LM2 – 30W/VA Current ...

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ELETTROTEC s.r.l.
magnetic float level switch
magnetic float level switch
LM1GSPA

Process temperature: -5 °C - 50 °C
Process pressure: 0 bar - 5 bar

PVC Level Switches Materials of constructionAll PVC Actuation points LM1 – 1 actuation point N.C./N.O. contact LM2 – 1 actuation point SPDT contact LMM1 – 2 actuation points N.C./N.O. contacts Mounting GSPA – G3/8” ...

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ELETTROTEC s.r.l.
vibrating rod level switch
vibrating rod level switch
VLS series

Process temperature: -30 °C - 160 °C

... damping of the vibration is detected by the electronics which switch the output relay after a configurable time delay. The vibrating rod level switch is the perfect solution for single ...

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Delta Mobrey Limited
magnetic float level switch
magnetic float level switch
LS01

Process temperature: -30 °C - 80 °C

Compact single level vertical mount LS01 Series Liquid Level Sensor used in level control, detection and monitoring. High power switch option, other cables and connectors. Specifications Contact ...

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StandexMeder Electronics GmbH
magnetic float level switch
magnetic float level switch
LS02-S

Process temperature: -40 °C - 160 °C

Compact stainless steel single level vertical mount LS02 (S) Series Liquid Level Sensor used in level control, detection and monitoring. High power switch option, other ...

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StandexMeder Electronics GmbH
magnetic float level switch
magnetic float level switch
LS05

Process temperature: 200 °C
Process pressure: 0 bar - 12 bar

Versatile stainless steel LS05 Series Liquid Level Sensor for single, multi and continuous level control, detection and monitoring capable of high temperature resistance up to 200°C (SS) and pressure ...

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StandexMeder Electronics 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.