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 signal...
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float level switch
float level switch
NESOS R40 LSH

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

... b>Overview
The horizontal float switch JUMO NESOS R40 LSH is designed for side mounting on tank walls to detect MIN and MAX liquid limit levels. It supports up to two switching contacts for redundant level ...

float level switch
float level switch
NESOS R04 LS

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

... description
The JUMO NESOS R04 LS float switch in curved version is designed to switch alarms, pumps, signal lamps, valves and horns via a contact-protection relay. The device is suitable for liquid level ...

capacitive level switch
capacitive level switch
ZELOS C01 LS

Process temperature: -40 °C - 200 °C

... The capacitive level switch identifies the level of liquids and solids. It can also be used in pressurized tanks or pipes. Typically, the level switch is used in industrial ...

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 Switches ...

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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 horizontal mounted ...

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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 switch ...

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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 contact. Through ...

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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 reed ...

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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 independent of physical ...

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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. The position ...

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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 thin pipelines. • ...

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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. • Simple setup ...

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VEGA Grieshaber KG
liquid level switch
liquid 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 very translucent ...

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) & HPF-T034(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 innovative front ...

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 and maintenance-free. Can ...

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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 plants for safe ...

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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 plants for safe ...

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UWT GmbH
vibrating level switch
vibrating level switch
OPTISWITCH 3 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 / -58…+482°F; ...

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KROHNE Messtechnik GmbH
vibrating level switch
vibrating level switch
OPTISWITCH series

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 IO-Link communication. ...

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KROHNE Messtechnik GmbH
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 is a crucial aspect ...

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 mounting position. ...

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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 empty alarm, as ...

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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 directly at the ...

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VEGA TECHNIQUE
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 the end you receive ...

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Endress+Hauser AG
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 Language - English Product ...

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DANFOSS Refrigeration & Air Conditioning
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
liquid level switch
liquid level switch
Lidec

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

... Lidec 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 ...

microwave level switch
microwave level switch
LNM series

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

... The LNM Series of Microwave Level Switch, manufactured by Kobold Instrumentation, is mainly used for detecting levels of fill. It features a microwave field which is penetrates various millimeters into ...

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KOBOLD INSTRUMENTATION
float level switch
float level switch
ABZMS-41-1X

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: 220 mm /140 mm Output ...

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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 liquids. Typical ...

magnetic float level switch
magnetic float level switch
FLOTECT® L6EP series

Process temperature: -20 °C - 205 °C
Process pressure: 0 bar - 138 bar

... the Series L6 Flotect® Level Switch is designed and built for years of trouble-free service in a wide variety of process liquid level applications. Operation is simple and dependable with no mechanical ...

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DWYER
electro-optical level switch
electro-optical level switch
ELS-1100

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

... Electro-Optic Level Switches are low cost, compact, optical level sensors with built-in switching electronics. With no moving parts, these small units are ideal for a variety of point level sensing applications ...

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GEMS SENSORS & CONTROLS
float level switch
float level switch
LLF40 series

Process temperature: -20 °C - 105 °C

... Suitable for low specific gravity liquids (0.7 S.G.) Very low level sensing Class leading compact design Available in Nylon, Polypropylene, PPS or PVDF 25VA & 100VA versions Many variants have WRAS (Pending) and/or UL approval Flying ...

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Sensata Technologies
float level switch
float level switch
RSF166 series

Process temperature: -10 °C - 85 °C

... Nitrile compression seal • Versions for Filling or Emptying Control • UL, NSF and WRAS approved The RSF166 Series float switch is designed to offer a number of switching options to meet a variety of system requirements. These are ...

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Sensata Technologies
float level switch
float level switch
RSF166P series

Process temperature: -10 °C - 85 °C

... Emptying Control • M12 4-pin connection for quick connection to circuit • UL, NSF and WRAS approved The RSF166P Series float switch is designed to offer a number of switching options to meet a variety of system requirements. These ...

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Sensata Technologies
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, these ...

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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 flash relay or ...

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Magnetrol - AMETEK
ultrasonic level switch
ultrasonic level switch
Echotel® 961

Process temperature: -40 °C - 70 °C
Process pressure: 138 bar

... electrical noise interference. Extensive self-testing of the electronics and transducer make this advanced switch suitable for use in Safety Integrity Level (SIL) 2 loops. The ECHOTEL Model 961 is ...

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Magnetrol - AMETEK
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 sump level ...

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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 detection ...

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FCI Fluid Components International
magnetic float level switch
magnetic float level switch
LXT_207

Process temperature: -20 °C - 350 °C
Process pressure: 4.5, 3 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 a micro- switch ...

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Golden Mountain Enterprise
thermal level switch
thermal level switch
TLS

... TLS Series are assembled with a thermal dispersion sensor. It designed to provide a switch function for controller or alarm when the sensor is immersed into process liquid. Technical Data Wetted Parts Material: 316 stainless steel Thread ...

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Golden Mountain Enterprise
float level switch
float level switch
EDW_EDX_602

Process temperature: max 200.0 °C

... EDW602-Weather Proof Type EDX602-Explosion Proof Type The NEW-FLOW float level switches are made to applications such as pump control. waste water level and open tank. They are designed for high corrosive resistance ...

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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

... produced and the output state reverts to indicate material absence. SCX Tuning Fork Level Switch Application Scope It is applicable to the max. and min. level detection of the tanks or tubes filled ...

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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

... prevent from severe bridging. auxiliary rod is not included in the order). Principle SIS Sanitary Intelligent Level Switch, Lquid Level Switch (Food Grade) Working principle ...

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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

... is installed in a tank, pipeline or other type of container. Description SDX Optical Level Switch, Lquid Level Switch SD series is an optical level switch ...

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FineTek Co., Ltd.
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 and hydraulic ...

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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 SPST or SPDT Contact USE: Made to ensure, with maximum safety, the minimum or and empty levels of liquids in tanks, and hydraulic power packs containing mineral ...

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Fratelli Giacomello
magnetic float level switch
magnetic float level switch
IEG-TQ10M series

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

... Electromagnetic level indicators with double contact or min-empty contact SPST Contacts USE: Made to ensure, with maximum safety, the minimum or and empty levels of liquids in tanks, and hydraulic power packs containing ...

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Fratelli Giacomello
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
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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.

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