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The LL series Liquid Level Sensor uses an optoschmitt trigger which provides a digital output that indicates the presence or absence of liquid. These components require user supplied external circuit protection.
The LLN series Industrial Liquid Level sensors are designed for harsh industrial environments with extremes in temperature, pressure, vibration, and shock. The LLN series are sealed to meet IP67 and have reverse polarity and overvoltage protection. Housed in stainless-steel, the LLN series has long life and is easy to clean. The LLN series terminates using industry standard Quick-connect connectors.
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Sensortechnics is a leading manufacturer and distributor of a wide range of sensors and fluid control devices. The product portfolio includes basic pressure sensors, rugged transmitters, submersible level sensors and customised pressure sensing systems from 1 mbar up to 1000 bar as well as liquid level sensors and switches, flow, oxygen and force sensors. Additionally, Sensortechnics offers ultrasonic air bubble, air-in-line, liquid level and fluid monitoring detectors. Fluid control devices include miniature solenoid valves, diaphragm pumps and electronic pressure controllers.
Sensortechnics has more than 25 years of experience in providing highly customised sensing products and in the development of complex integrated fluid control systems for OEM customers worldwide.
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- Standard
A basic range of optical level sensor manufactured in polysulphone - compatible with a wide range of materials.
- High Performance
High reliability in aggressive environments makes the High Performance range the ideal product for truck and off road applications.
- Optimax
Optimax is the sensor of choice for high volume users where high volumes demand costeffectiveness.
- Probe Style
Mainly used in the automotive sector, these sensors can be supplied with a variety of probe lengths, connector types and are manufactured to AS standards.
- TS Series
The PTC characteristics of the Thermistor make this liquid level sensor sensitive to change in the medium.
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Models
Float Switches
7014 and 7010 Series Float Switches Float switches provide simple mechanical control for clean liquid applications. Floats are available for single or multiple control points.
Conductivity Switches
6012 / 6013 Series Conductivity Switch Conductivity switches are suitable for measuring conductive liquids that do not leave coatings. Holders are available that can accept up to 12 electrodes.
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ULS7 is the new industrial OEM level switch from Barksdale combining the advantages of the ultrasonic measuring with the well-known functions of electronic pressure switches.
It is ideal for level control. The ULS 7 is used in numerous applications like machine tools, hydraulic systems or testing beds
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Increasing demands for compliance with safety systems and overfill protection has mandated more reliable point level measurement. Echotel® Models 961 & 962 Ultrasonic Level Switches meet these demands with advanced transducer designs, extensive hazardous location approvals, and a new self-test technology.
Model 961 offers the ultimate solution to reliable single point liquid level measurement. This advanced switch uses pulsed signal technology for superior performance in difficult process conditions, and to provide excellent immunity from sources of 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.
Model 962 is a dual point switch that can be used as a level controller, or to control pumps in an auto fill or auto empty mode. The tip sensitive lower gap performs well in aerated or foamy liquids, and can measure to within 14" of the vessel bottom. The rigidity of the unique flow-through upper gap allows separations of 125" (318 cm) between the upper and lower gaps.
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The optimized ultrasonic limit switch SONOCONTROL 15 detects quickly and reliably whether a pipe is filled with liquids / liquid gases or not. The compact sensor is mainly used in plants of the pharmaceutical sector and the food industry. Here, the SONOCONTROL 15 is employed for the protection of pumps and the control of filling systems.
The known advantages of the limit switch, such as the non-intrusive ultrasonic measurement through the wall as well as the precise distinction between empty and liquid filled pipes, have been upgraded by further favourable characteristics. The simplified installation method of the 2-wire system for example, which can be carried out even during system operations, guarantees an optimal use of the device. Due to a new pipe fastening system made of plastics the sensor can be relocated quickly and easily. Furthermore, the advanced firmware assures a stable operating mode.
The required power supply is 12.. 40 VDC. According to the 4...20mA concept the switching status is represented by the current consumption of the sensor. The acceptable medium- or pipe temperature range lies between
-40°C...+140°C. A particular device version of the SONOCONTROL 15 is also available for the use in hazardous areas.
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VEGASWING:
Versatile use in liquids
The piezo drive is the heart of VEGASWING, actuating the tuning fork on its resonance frequency. The frequency of the fork falls when being immersed. The frequency change is processed by the integrated oscillator and converted into a switching command. The piezo drive is screwed to ensure reliability and ruggedness. With the tuning fork of only 40 mm length, VEGASWING 60 works reliably in all liquids and mounting locations. Pressure, temperature, foam and bubbles and even viscosity do not affect the switching accuracy. Even pipelines with a nominal width of DN 25 are no problem.
VEGASWING 60 is the universal level switch for all applications.
Advantages
- Virtually independent of product characteristics
- Level detection up to +250°C
- Short tuning fork of 40 mm
Applications
- Level detection of liquids
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The V-Tork is a point level switch that is designed to detect low or high level of liquids, thick and turbulent fluids, as well as corrosive mediums and pastes (depending on viscosity). Due to its simple and rugged controlled system, the V-Tork is virtually unaffected by any chemical or physical properties of the mediums and can be installed at any angle of the pipe or tank. It is ideal for multiple-purpose processing where the probes must be compatible with a variety of process materials and process conditions. The V-Tork does not require recalibration between batches and can also be cleaned in place.
The V-Tork can operate in temperatures up to 176ºF (80ºC) and has a maximum working pressure of 725 PSI (50Bar).
Standard probes are available with 3/4” up to 1” BSP or NPT process connection and insertion length L= 3 1/8” (L= 80mm).
FEATURES
*Unaffected by variations in density, conductivity, or dielectric constant.
*Unaffected by foam, tank agitation or vibration.
*Various length options to best suit your application.
*Made with 316 S.S. and can be PTFE coated.
*Relay and Transistor outputs available.
*Thread, Tri-Clamp, Hygienic Fittings, Flanges, etc.
*Polished Forks - RA tested when necessary
*3A approved
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The tuning fork is piezoelectrically energized and vibrates at its mechanical resonance frequency. (of approx. 1200 Hz.) The piezos are fixed mechanically and therefore are not subject to temperature shock limitations. The frequency changes when the tuning fork is covered by the medium. This change is detected by the integrated oscillator and converted into a switching command.
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The microswitches MP210 & derivatives are snap-action changeovers,
simple or double switching action, connection by directly overmoulded cable.
By wiring the 5 terminals in different combinations, you can obtain electrical
circuits to 3, 4 or 5 wires.
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The microswitches MP210 & derivatives are snap-action changeovers,
simple or double switching action, connection by directly overmoulded cable.
By wiring the 5 terminals in different combinations, you can obtain electrical
circuits to 3, 4 or 5 wires.
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External display and adjustment unit
Suitable for external display of measured values and adjustment of the sensors
All advantages in an overview:
- digital and quasi-analogue display of measured values
- can be mounted up to 25 m away from the sensor
- inclusive PLICSCOM
- instrument from the plics® family
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Level sensors are used to detect the level of liquids. In contrast to mechanical limit switches the switch points can be freely selected within the measuring range. One level sensor can replace up to four binary switches. Another advantage is direct level indication on the display. Adjustment to the medium is done automatically. The sensor is suitable for many liquid media.
> Reliable function even in coolant applications
> No time-intensive cleaning of mechanical components
> One sensor for all media – no adjustment necessary
> Selectable switch points for applications as required
> Direct level indication by LED display
> Modular concept saves time and money
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Products Level Measurement - Capacitive level sensors
All of the capacitive level sensors are now available with automatic calibration should the overall length need to be changed.
The required length can be easily adjusted by the user. Once the length has been shortened the unit will require to be re-calibrated. This is now very simple, just requiring the "Zero Adjustment" button to be pressed with the tank empty and the "Maximum Value Adjustment" button to be pressed with the tank full. The calibration is then done automatically by the integrated micro controller.
The advantages of these level sensors includes the ease of adjustment, voltage or current outputs, extremly robust by virtue of the coaxial measuring principle and a 2" BSP head. Additional switching points are available optional.
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The capcitive filling level systems operate according to the three-electrode principle. With this principle the container or an additional electrode serve as a counter-electrode to the probe electrodes. For this reason it is necessary with this system that the container is of a conductive material or a "substitute electrode" is fixed to the container wall, e.g. copper foil. These systems are available with probes for analogue filling level measurement of for detection of 1, 2 or 3 measuring points. The position of the switching points and the analogue measuring area is user-definable within the possible effective range and therefore it can be determined for optimal matching of each application. Level measurements of bulk material, liquids or pastes are possible with a dielectric constant as of εr 1,1.
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The vessel, capacitance electrode and medium to be measured form together an electrical capacitor. The level change is monitored as a direct result of the variation in capacitance value around the probe, dependent upon the degree of immersion.
Advantages
- Rugged sensors suitable for universal applications
- High chemical resistance
Applications
- Level measurement and level detection of liquids and solids
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Fully insulated, capacitive rod electrode for level measurement
For use in conductive liquids
All advantages in an overview:
- robust and maintenance-free
- easy installation and mounting
- measurement along the complete probe length
- insulation thickness 2 mm
- instrument from the plics® family
Version rod: - fully insulated
Insulation: PE, PTFE
Length: 0.1 ... 6 m
Process fitting: thread from G¾A
Process temperature: -50 ... +200 °C
Process pressure: -1 ... +64 bar (-100 ... +6400 kPa)
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OptiLevel is the leading edge system for liquid level measurement in smaller storage tanks. The OptiLevel tank gauging system is the best choice for your above and underground storage facilities.
The OptiLevel tank gauging system can be used for all applications in petroleum and petrochemical installations.
The state of the art HLS 3010HF level sensor and designed system architecture enable open interfacing to the Entis Inventory systems and other protocols.
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Ink Level Sensor, Adblue Level Sensor, LAB Level Sensor, Paint Sensor
The 'other' level sensors categorises liquids not covered by our 'fuel', 'oil', 'bio-fuel' or 'water' level sensors categories. Our level sensors will work with most fluids, using capacitive technology to accurately sense the level of the liquid. The sensors have no moving parts and are ideal for use in extreme environments. All sensors feature fully integrated on-board electronics so there is no need for additional bulky electronic modules. The sensors are factory calibrated in the liquid type and are provided with our free ProbeMON calibration software to allow you to re-calibrate the sensors to your requirements. We can produce sensors using alternative materials if the standard Aluminium, Stainless Steel and Titanium options are not compatible with your liquid.
Our level sensors will operate to temperatures of 125°C and are compatible with most fluids:
- Ink
- Adblue
- LAB
- Paint
We offer two ranges of level sensors, 'M-Series and 'R-Series'. An M-Series sensor is fully custom designed to your requirements, an R-Series sensor is our standard design, available at any custom length.
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Limit switch made of plastic for liquids and bulk goods
CPS 01
Features:
Quick and easy setting via programming by keystroke
Electrical connection: Cable or plug M8
PNP transistor output Housing made of PP or PVDF
Make contact or break contact
Outstanding price-performance ratio
Functional LED display Small and compact
Thread BSP G½"
Description:
Immersing the CPS 01 into the medium will cause a change in capacitance in the electrical capacitor. The change in capacitance is detected by the electronics and the switching operation is initiated.
Adjustment to the corresponding medium is carried out with the help of a programming key (programming via keystroke).
Application:
Designed for level limit detection of liquids and powdery or fine-grained bulk goods.
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The UCL-510 offers an innovative, non-contact ultrasonic level sensor with no moving parts built for challenging fluid measurement. This accurate and reliable sensor is built for general purpose, small tank applications 49.2" (1.25m) or less and offers switch, controller and transmitter capabilities in one multi-function transmitter. The UCL-510 is suited for corrosive and dirty applications and is virtually maintenance free and reduces tank system hardware. The UCL-510 combines 4 relays, 4-20mA output and pump/valve control in one small sensor. The UCL-510 offers a total solution for fluid handling and automation.
Applications:
Water and Waste Water
Control Automation
Chemical Feed
Food and Beverage
Acids, Inks, Paints
Slurries
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SSI Technologies Inc. offers two families of ultrasonic liquid level sensors - Fluid-Trac® and Acu-Trac®.
More accurate than resistive float senders, reed-switch tube sensors, or capacitive tube senders. Accuracy of level volume measurements is dependant on the tank shape and irregularities.
Fluid-Trac® and Acu-Trac® liquid level sensors are programmable to allow for non-linear flexible tank profiling. Tank irregularities are handled by our software using tank strapping profiles. Digital filtering helps eliminates errors due to liquids sloshing in mobile tanks.
More reliable - no moving parts. Resistive float senders have a wiper that slides across a resistive strip that with time can wear out and cause intermittent or complete loss of the signal.
Mounts to the same opening as the resistive float sender but does not protrude into the tank. Chemically compatible with many liquids such as gasoline, ethanol, diesel fuel, oils, engine coolants, fresh water, waste water, urea (AdBlue).
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Continuous measurement and point level detection
Endress+Hauser offers an extensive range of systems for level easurement
or point level detection.
In solids or liquids - our level measurement principles meet your needs:
- Radar,
- guided radar,
- ultrasonics,
- vibration systems,
- hydrostatic pressure,
- differential pressure,
- capacitance as well as conductive probes,
- electromechanical level procedures,
- external ultrasonics,
- microwave barriers and
- paddle switches.
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Portable open electronic gauge
The UTImeter Otex is a portable liquid level gauge designed to be operated under open conditions on petroleum and chemical tanks where open gauging is permitted. The sensor is calibrated once at the factory and does not require subsequent calibration. The temperature probe is a RTD element. The characteristics of the RTD are stored inside the sensor. The sensor is sending true temperature values to the electronic box. Therefore changing a sensor or a tape does not require a new calibration. The unit is used for custody transfer, inventory control measurement and free water detection on marine vessels and shore tanks. The HERMetic UTImeter Otex is set on the open gauging hatch.
The unit enables 3, optionally 4 measurements in one single operation
- Ullage
- Temperature
- Oil-water interface level
- Innage, Reference height (Visc Version)
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