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LIDEC level switches: a dependable solution for liquids detection
Developed in cooperation with “Paris VI” University, the Lidec series liquid level sensors series are especially designed for marine applications.
They provide a reliable solution to liquid level detection.
Their operating principle, a patent granted to Enraf Marine Systems, is based on the propagation of a surface wave inside a stainless steel probe.
This principle is fully static, without vibration or moving parts. A "self-monitoring" function ensures the reliability of this equipment. This allows these sensors to be used in safety systems such as overfill protection, bilge well alarm and water ingress detection...
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Description
Standard liquid level sensor. The sensor has to be mounted vertically for best results. Two versions are available:
PP (Polypropylene) for water applications and dilute acids.
PA (Polyamide) for use in oil, gasoline (petrol) and brake fluid.
The standard termination is a PVC cable with a cross section of 0.14 mm2 and a length of 500 mm. The cable can be modified on request.
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Gems Sensors, Inc. is a leading manufacturer of level switch products, pressure switch instruments, flow switch devices, and liquid level control units for use in a broad range of fluids across the industry. Gems products feature an ever-expanding selection of sensing technologies including: electro-optic, ultrasonic level sensors, float type, CVD, thin film, piezo-resonant, capacitance, hall effect and conductance products and services.
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Level and temperature switch
Multiterminal
All basic functions in one unit:
Return line filter
Breather filter
Level and temperature controls
Filling port (optional with electrical close loop shut off)
Sample ports
Advanced filter capacity controller
The very compact design saves space and installation cost.
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A comprehensive modular system provides the basis for the configuration of individual level indicators – cost-efficient and directly suited to customer needs. Depending on requirements, we offer level indicators with almost any defined switching points, quasi-analog with dry reed resistor chains and a resolution of up to 5mm and low cost capacitive level indicators. The probes in the capacitive level indicators can be cut to length by the user and simply calibrated at the touch of a button. For bulk solids we offer silo switches.
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* P/N:12345
LSAZ-90 horizontal level switches, This is a stanard level switches, are ideal for sensing condensate tray level in heating, venting and air-conditioning systems. Feature high reliability and compact, miniature design, making them suitable for use in tight spaces. SUS304 or SUS316L material can be selected.
* P/N:12345
LSA-34-1/2-300-P float level swiches, Made of plastic, low cost, with M10 threads, applied to aerospace, air compressors, buck storage tanks, chemical dispensing systems, commercial restaurant industry. Chermical liquid level controlling.
* P/N:12345
LSA-27-1/2-300-P float level switches combine low cost and reliability with fast simple installation, used for chemical processing systems, sumps, collant tanks, oil reservoirs fuel or water tanks sterilizing equipment, irrigation systems
* P/N:LS-055
LSA-40-1/2-300 float level switches, Made of SUS304 or 316L, Typical installations, such as pipe plug, flange, and thread, Bulkhead etc is selected. Normally closed, or Normally open is selecthigh, low, middle liquid level sensing for almost any application, applied to aerospace, air compressors, buck storage tanks, chemical dispensing systems, commercial restaurant industry, parts washers, power generation equipment, petrol and diesel pumps control and prevent, commercial coffee machine.
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HVAC Series Condensate Level Switches
Plastic Float Level switch consists of a magnetic float, unit stem with magnetic reed switch, the magnetic float moves with liquid level to actuate a hermetically sealed magnetic switch within the unit stem. The level switches usually used for high or low alarm vessels. Multi-point level switches, the design is according to customers' specifications.
Advantage
Good look and smart design
Products are CQC, CE approved and ISO9001-2000 is certified
High temperatures up to 105 degrre C
Switches are tested 100 precent before shipping
Switch mode N.C. or N.O. is selectable
Variety float ball dimension is selectable for broad media compatibility
By inverting the float 180 the switch contact state can be changed from Normal close to Normal Open
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Particularly reservoirs located under floor level or in pits need for the visual surveillance of the liquid level devices that can be installed on top of the tank. The NS-OM range provides a visual indicator directly coupled to a float inside the tank. In addition to the optical indication, electrical signals are available. These come, depending on the version, either from internally or externally located contacts or continuously operating analogue displacers.
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Due to specific tank layouts and the variety of media available in the pharmaceutical, chemical and automotive industry, a wide product range is required to ensure that all requirements can be met. A comprehensive modular system enables you to configure almost any level measurement solution possible. In exceptional cases where this is not possible, you can rely on the comprehensive development expertise of elobau.
Define your optimal solution with the new online assembly system at www.elobau.com.
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Magnetrol’s displacement type level switches offer the industrial user a wide choice of alarm and control configurations. Every unit utilizes a simple buoyancy principle and is well suited for simple or complex applications such as foaming or surging liquids or agitated fluids.Displacer level switches usually cost less than other types of level switches.
Features include narrow or wide level ranges achieved through multiple switch mechanism capability, displacers that adjust along any point on the suspension cable, anti-surge design to eliminate the possibility of switch shortcycling, flanged or threaded mounting, field adjustable set point and switch differential, NACE models and floating roof top models.
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SOLIBA Ex- GP Version (G: Gas and P: Dust)
High level detection in explosive environments classified 0,1,2 for gas and 20, 21, 22 for dust.
Especially designed to stop the filling of silos containing cereal, grains, flour, animal food, polyethylene granulate, etc.
Compact, resistant and simple device. Ready to be used. It does not need any maintenance.
This model is also available in only "P" Version (Dust).
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BIP STOP VR ECO - Neoprene or hypalon cable HO7RN8-F certified
By connecting it directly to the pump, this float level switch makes start and stop the pump.
110° switching angle that prevents excessive jerking of the pump's engine.
Biconical cover which avoids any risk of clogging.
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Soba HR HY
Recommended to perform multilevel regulation in highly corrosive liquid mixtures (hydrocarbons, oil, solvents, waste water, etc.).
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Comus International has now added to their extensive range of switch and sensor products a range of vertical and horizontal plastic and stainless steel floats.
The range includes vertical and horizontal mounted single and multi float types including the side mounted crocodile type.
The float switches are compact, reliable and very easy to install. They are not affected by electrical interference and with a wide range of materials are able to withstand various chemicals, high temperatures and high pressures. By varying the size of float and material used we are able to make sure the switch activities correctly every time.
The activation of the switch uses the principle of a reed switch and magnet.
When used in the vertical position the reed inside the stem is stationary and the float (housing a magnet) is moved up or down passed the reed switch (this closes the reed contact). When the magnetic field is moved away the reed switch opens.
When used in a horizontal position the float is used in a pivotal movement. The magnetic field inside the float is moved into the proximity of the reed switch inside the stationary stem. The reed switch opens or closes.
For more technical information on these and over 800 switch and sensor products please contact the sales office.
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Float Type Level Switches
Flotect® Liquid Float Switch - Model L4
Explosion-proof, Leak-proof, Brass/SS Housing
Flotect® Liquid Float Switch - Model L6
Explosion-proof, Leak-proof, Brass/SS Housing
Flotect® Liquid Float Switch - Model L8
Leak-proof, Weatherproof Optional, Low Cost
Chamber Type Level Switches
Chamber Type Level Switch - Series 123/125
Operating Pressures to 150 psi, Snap Action Type
Chamber Type Level Switch - Series 102/1102
Operating Pressures to 300 psi, Flanged Chamber
Chamber Type Level Switch - Series 500
Operating Pressure to 400 psi, Adjustable Deadband, Weatherproof
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Convincing Advantages
- easy and reliable method to monitor fluid levels
- proven float principle
- easy side installation using threads ¾" or ½" BSP
- potential-free contact as signalling transmitter
SIKA-level controller in service as
- run dry protection for pumps (minimum alert)
- spill protection (maximum alert)
- leakage monitoring
- screwed-connection oil level monitoring gauge, e.g. at compressors
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Device designed to control the water level into pressurized or non-pressurized tanks.
- Fitted by two electric deviation switches, fast and non-vibration type with silver-plated contacts: one operating on the minimum level and the other one on the maximum level.
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- LS Series
LIquid level sensor in a wide range of materials, switching and fitting options. With UL & WRAS models.
- LCS Series
Push fit external mounted liquid level sensor, with cable or with integral connector.
- LDS Series
Liquid level sensor with a close differential between operate and release, for sensing small change in the liquid level.
- RS Series
LIquid level sensor vertical travel float is suitable for internal and external fit - ideal for the tight corner of the tank.
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Soba Ex, ATEX certified
Compulsory for multilevel regulation in sewage pumping stations with explosive risks 0, 1, 2 (gas) & 20, 21, 22 (dust)
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The horizontally mounted L070 is a rugged, hazardous duty level switch providing a safe, isolated switch closure for monitoring high and low liquid levels. With an all stainless steel construction and ultra-light float, the L070 provides high performance in most any media and can be adapted to sense dissimilar fluid interfaces within a 0.1 differential.
FM approved for Class I, Division 1, Groups C,D,E, F & G hazardous locations, the L070 also features a water-tight switch enclosure with a standard ½" NPT conduit connection and can be installed for either normally open or normally closed switching.
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Where fluids must be stored or handled the Barksdale level switches with their large variety from a simple com-pact switch to multi level stations with lengths up to three meters are a logic choice (longer on request).
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Closed : float at the top - Open : float at the bottom
Closed : float at the bottom - Open : float at the top
PRODUCT REFERENCE
PTF01070
PTFA2015
PTFA3015
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Bernstein designs and manufactures a modular system of float switches which can be combined and configured to create a switch that ideally meets customer specifications.
Float switches provide a reliable and cost-effective acquisition of level information in containers with stagnant or flowing liquids, such as water, oils, alkaline solutions and similar substances.
A float switch comprises a connector element, a switching tube with 1 to 4 reed contacts and the float. The float is equipped with an integrated ring magnet and rises and falls with the level of the fluid. The magnetised contact reeds trigger a signal as soon as the float reaches the sensing range of the reed contact.
The range of Bernstein float switches ranges from miniature versions to heavy-duty and pressure-resistant versions.
The particular advantage of these float switches is, that the switching contact can directly – when furnished with the proper protection – switch loads, e. g. relays, signal lamps or even small pumps.
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The wider displacement L500 multi-level switch for larger tanks monitors up to eight independent levels in a single device. Available in lengths up to 15 feet, these sensors are individually designed for your application from over 1400 possible combinations of floats, mounts, and material options.
With only a single entry, the L500 can track changing levels within the tank as well as monitoring liquid interfaces of dissimilar liquids in a single tank like oil water separations, chemical emulsions or condensation levels. These sensors can also be equipped with a wide variety of enclosures and thermostatic switches to provide level and temperature control in a single control.
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ATS 165 EP, ACS certified (ACS: Certificate of Sanitary Conformity)
ACS certified float level switch for a mandatory use in drinking water (EP) meant for human consumption.
This float level switch is connected to the pump to perform an automatic regulation. It has been specially designed for use in very agitated water and its 165º switching differential avoids excessive jerking of the pump.
Application exemples: Tanks and reservoirs of drinking water.
For multilevel regulation in drinking water, we propose the SOBA EP, ACS certified which has a 25º switching differential.
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TUBA 1'' VR ECO
Level sensor for automatic regulation and level control for tanks and cisterns with very small diameter orifices.
Mainly used for tanks requiring mounting by the sides or for an installation with ballasts or fixed to a vertical tube.
Also available in 1''1/4 version.
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Tiltswitch Level Indicator
Level indicator for bins & silos
Suitable for almost all granular materials
Alarm is triggered when material build-up tilts sensor by approx 15°
Sensor cable adjustable up to 5m
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The AQUA XL float level switch has an internal ballast. Thanks to its heavy weight (775g) and its density superior to the liquid, the cable is constantly straight in the vertical position.
Applications: The AQUA XL is ideal for every type of pumping station, sewage stations, water treatment stations, etc. It is particularly appreciated when dealing with thick grease layers.
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Trimod Besta level switch
The 3-modular design provides problem solutions for any application. The 3 modules – switch, flange and float module – can be supplied in countless variants and have proved themselves for years through their reliability in an extremely wide range of sectors (chemicals, petrochemicals, off-shore, power plant construction, shipbuilding, industrial installation).
Unlimited switch combinations
Whether mounted on the side, from above or in a bypass, the modular design always makes it possible to achieve switch combinations for specific applications. This modularity permits customized solutions.
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