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
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
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
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
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
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
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
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 ...

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
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.
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
magnetic float level switch
magnetic float level switch
LXT_207

Process temperature: -20 °C - 350 °C
Process pressure: 3, 4.5 MPa

LXT207 float-operated with test device level switches are suitable for controlling liquid level at horizontal mounting. The float equipped with an extended arm moves a couple magnetic mechanism to actuate ...

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Golden Mountain Enterprise
magnetic float level switch
magnetic float level switch
LS

Process temperature: -20 °C - 130 °C

New-Flow offers a large variety of products for measurement and control of temperature, pressure, flow, level, and valve. Head Type: Without, or weather proof and explosion proof type available Float Size: (min.) ...

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Golden Mountain Enterprise
magnetic float level switch
magnetic float level switch
SLS

Process temperature: -20 °C - 130 °C
Process pressure: 10 bar

... measurement and control of temperature, pressure, flow, level, and valve. Housing Model: DIN 43650 and SV-1(universal connector) Connection Type: Sanitary (ISO2852 or DIN32676), PT, NPT, BSP Switch ...

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Golden Mountain Enterprise
tuning fork level switch
tuning fork level switch
SC series

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

... again is produced and the output state reverts to indicate material absence. The tuning fork level switch can be widely applied to detect the min. and max. level in tanks, silos and ...

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

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

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

... 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.
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
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
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
admittance RF level switch
admittance RF level switch
Z-tron IV

Process temperature: -40 °F - 145 °F
Process pressure: 1,000 psi

... simple and reliable on/off level switch. The compact one-piece unit is inserted through a standard 3/4-inch , probe dependent, NPT opening into the vessel so that the sensing element is positioned ...

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AMETEK Drexelbrook
admittance RF level switch
admittance RF level switch
ThePoint series

Process temperature: -40 °C - 70 °C
Process pressure: 1,000 psi

ThePoint Line Powered Level Switch and ThePoint Loop Powered An excellent product for most of your point level application needs. ThePoint offers many of the features and benefits of ...

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AMETEK Drexelbrook
admittance RF level switch
admittance RF level switch
IntelliPoint RF

Process temperature: -40 °C - 85 °C
Process pressure: 1,000 psi

Our Best and most versatile point level switch for liquids, slurries, granulars, and interface applications. IntelliPoint needs no more than installing the sensor in your vessel and connect the power. ...

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AMETEK Drexelbrook
overflow level detector
overflow level detector
OVERFLOW

Process temperature: -20 °C - 50 °C

Combined sewers overflow monitoring or Sewers overflow monitoring IJINUS presents the new overflow detector, incorporating CapAir® technology, an IJINUS patent, simplifying installation ...

magnetic float level switch
magnetic float level switch
WBF33A30-0

Process temperature: 0 °C - 70 °C

The WBF33A30-0 Series, manufactured by Comus Group®, which has a 240 Vac voltage switch that can hold a 100 Watts maximum 10 Watts in a minute and has a solid state output resistance. Furthermore, it has a 30° degrees ...

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The Comus Group
magnetic float level switch
magnetic float level switch
VFS30

Process temperature: -10 °C - 128 °C

The VFS30 is a reversible float switch manufactured by Comus. It features a stainless steel SUS304 construction, and dimensions of 60.0x28.0mm. The switch has a voltage rating of 200V AC to 240V AC. ...

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The Comus Group
magnetic float level switch
magnetic float level switch
VFS75

Process temperature: -10 °C - 120 °C

The VFS75 is a stainless steel float level manufactured by Comus. This device is made of SUS303 stainless steel and features a contact form which is normally closed. It runs on a maximum switching voltage of 250V AC. ...

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The Comus Group
optical level detector
optical level detector
76

Process temperature: -25 °C - 80 °C
Process pressure: 0 bar - 2 bar

... option of acoustic or optical sensors, the overfill prevention has proven its reliability for years. The Level Detector 76 from FAFNIR can be used in any container (outside the Ex-zone) ...

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FAFNIR
thermal level switch
thermal level switch
76 A

Process temperature: -25 °C - 80 °C
Process pressure: 0 bar - 2 bar

... ideal solution to overfill prevention of tanks for water polluting liquids. With its easy installation and the option of acoustic or optical sensors, the overfill prevention has proven its reliability for years. Our ...

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FAFNIR
thermal level detector
thermal level detector
76 C

Process temperature: 25 °C - 80 °C
Process pressure: 0 bar - 2 bar

... ideal solution to overfill prevention of tanks for water polluting liquids. With its easy installation and the option of acoustic or optical sensors, the overfill prevention has proven its reliability for years. With ...

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FAFNIR
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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.