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
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
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
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 ...

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
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
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
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
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
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
magnetic float level switch
magnetic float level switch
LXT207 series

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 series

Process temperature: -20 °C - 130 °C

The vertical float level switch consist of a float with a built in permanent magnet, and guide tube built in reed switch (one or more), when the float rise up or fall down in liquid that ...

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

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

... Pressure: please refer to the float spécification Limited Working Température: please refer to the float spécification - Switch Mode: SPDT - __ Setting Point: One float point or Two float points - ; ]

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Golden Mountain Enterprise
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
PROCAP I & II

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

... 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
PROCAP IX & IIX

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

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 3-A & II 3-A

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

The BinMaster 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 spectrum. ...

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BinMaster
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
float level switch
float level switch
OSV2

Aalborg® instruments’ Enhanced Optical Sensor Switch Hi-Low • Eliminates high or low flow rates from damaging your equipment and processes • Enhanced Sensor Switches are available with one or two ...

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

The MF 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

The RF 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 ...

float level switch
float level switch
MC

Process temperature: 0 °C - 50 °C

The MC 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 ...

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
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
magnetic float level switch
magnetic float level switch
IEG-TQ10 series

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

Electromagnetic level indicators at a control point M18x1 5 connection SPST or SPDT Contact USE: Made to ensure, with maximum safety, the minimum or and empty levels of liquids in tanks, and hydraulic ...

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Fratelli Giacomello
magnetic float level switch
magnetic float level switch
NW3

Process temperature: -20 °C - 110 °C
Process pressure: 10 bar - 25 bar

... reproducible ●Normally open or normally closed contact ●Plug connection Characteristics Mechanical level monitor for fluid media, with contact-free triggering of a reed contact.

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GHM Messtechnik GmbH
magnetic float level switch
magnetic float level switch
NM-008HK

Process temperature: -20 °C - 105 °C
Process pressure: 40 bar

Mechanical level monitor for fluid media, with contact-free triggering of a reed contact. ●Cover or base mounting for monitoring max. or min. level ●Normally closed or normally open ...

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GHM Messtechnik GmbH
magnetic float level switch
magnetic float level switch
SB-025HM0

Process temperature: -20 °C - 105 °C
Process pressure: 12 bar

Mechanical level monitor for fluid media with contact-free actuation of a reed contact. ●Mounted in the cover ●Changeover contact Handling and operation ●It must be ensured that the values given ...

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GHM Messtechnik GmbH
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
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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MINV
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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MINV
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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MINV
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
float level switch
float 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
float level switch
float 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
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
tuning fork level switch
tuning fork level switch
SC series

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

... 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 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.
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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.