Bypass level indicators
Submersible pressure sensors
Float switches
Sight glass level indicators
Continuous measurement with float
Optoelectronic switches
External chambers
Accessories – level
Engineered solutions level
Level indicators
Level indicators from WIKA – Indicate levels without supply voltage
Level indicators are used for continuous indication of the level. The functional principle is based on a magnet connected to a float transmitting the level, without an additional supply voltage, to an indicator bar that consists of magnetic rollers or flaps. In addition, various magnetic switches and level sensors can be fitted as additional accessories.
Model BNA
The magnetic level gauge model BNA consists of a bypass chamber, which, as a communicating tube, is connected laterally to a vessel via at least 2 process connections (flanged, threaded or welded). Through this type of arrangement of the magnetic level gauge, the level in the bypass chamber corresponds to the level in the vessel. The float with a built-in permanent magnetic system, which is mounted within the bypass chamber, transmits the liquid level, contact-free, to the magnetic display mounted to the outside of the bypass chamber. In this are fitted, at 10 mm intervals, two-coloured plastic rollers or stainless steel flaps with bar magnets.
Applications of the magnetic level gauge
Continuous level indication without power supply
Indication of the level proportional to height
Individual design and corrosion resistant materials make the products suitable for a broad range of applications
Chemical, petrochemical industry, oil and natural gas extraction (on- and offshore), shipbuilding, machine building, power generating equipment, power plants
Process water and drinking water treatment, food industry, pharmaceutical industry
Special features of the magnetic level gauge
Process- and system-specific production
Operating limits:
– Operating temperature: T = -196 … +450 °C
– Operating pressure: P = vacuum to 400 bar
– Limit density: ρ ≥ 340 kg/m3
Wide variety of different process connections and materials
Mounting of level transmitters and magnetic switches possible as an option
Explosion-protected versions
Model UTN
The model UTN top-mounted level indicator consists of a measuring chamber, a float with guide rod and a magnetic system. Mounting onto the vessel is made via appropriate process connections (flange, thread). The permanent magnetic system, which is connected to the float via a guide rod, transmits the liquid level measured in the vessel by the float, contact-free, to the magnetic display mounted to the outside of the measuring chamber.
Applications
Chemical, petrochemical, natural gas, offshore industries
Shipbuilding, machine building
Power generating equipment, power plants
Pharmaceutical, food and beverage industries, process water and drinking water treatment
Special features
Process- and procedure-specific production
Operating limits:
– Operating temperature: T = -60 … +300 °C
– Operating pressure: P = Vacuum to 40 bar
Wide variety of different process connections
Mounting of level sensors and magnetic switches possible as an option
Explosion-protected versions
Submersible pressure sensors
For every hydrostatic level measurement, the right submersible pressure sensor
The submersible pressure transmitter, sometimes also referred to as a level probe, is a specific design of pressure sensor for hydrostatic level measurement in tanks, wells, shafts and bore holes. For this, the submersible pressure transmitter is submerged directly in the liquid to be measured, and positioned as close as possible to the bottom. There, the submersible pressure sensor measures the hydrostatic pressure, which enables a direct conclusion regarding the current level, i.e. the height of the liquid column above it.
Model LS-10
For simple measuring requirements
The model LS-10 submersible pressure sensor has been optimised for simple measuring requirements in level measurement. It offers excellent quality, is cost-effective and reliable.
Applications
Level measurement in rivers and lakes
Level measurement in vessel and storage systems
Control of sewage lift and pumping stations
Monitoring of sewage, settling and stormwater retention basins
Special Features
Robust
Reliable
Economical
Model LF-1
Permanently reliable
Extensive test cycles not only guarantee a permanent resistance and long service life in all commonly used oils and fuels, including aggressive crude oils and biofuels, but also in flowing and stagnant waters and in wastewater treatment applications. Thanks to newly developed special cables, components made of high-alloyed stainless steel and an optional overvoltage protection against lightning, the submersible pressure sensor is perfectly suited for the measurement of liquid levels, also in the outdoor area.
Applications
Level measurement in vessel and storage systems
Overfilling and no-load operation monitoring
Level measurement in rivers and lakes
Deep well and groundwater monitoring
Battery-operated level measuring systems
Special features
Suitable for measurements in contaminated and aggressive media
An optimised discharge behaviour and a large pressure port prevent the instrument from clogging and ensure a
minimum maintenance effort
Can be used in explosion-protected areas
Developed for wireless applications
Float switches
Versatile float switches from WIKA
Float switches in (the process) industry are used for the point-based limit level detection of one or several levels. They work independently of foaming, conductivity, dielectric, pressure, vacuum, temperature, vapours, condensation, bubble formation, boiling effects and vibrations and are suitable for almost all liquid media. The switching operation is contact-free, free from wear and needs no supply voltage. The simple and proven functional principle of the float switch enables a very wide range of applications, from general industrial applications through to use in process plants or in the shipbuilding industry.
Model RLS-1000
The RLS-1000 is a robust, reliable and inexpensive float switch. Since the monitoring of levels as well as dry-run protection and overflow protection are cost-sensitive applications in the machine-building industry, a float switch is the ideal solution for many plants. The RLS-1000 reliably detects the level in vessels with water, oil, diesel or other liquids by means of a permanent magnet and frictionless reed contacts at max. 4 defined switch points and can be used in a medium temperature range from -30 to +150 °C [-22 to +302 °F].
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 contacts
Very high variety and customer-specific solutions possible
Simple and fast installation
Model FLS
A float with a permanent magnet moves reliably along with the liquid level on a guide tube. Within the guide tube is fitted a reed contact (inert gas contact), which is energised, through the non-magnetic walls of the float and guide tube, by the approach of the float magnet. By using a magnet and reed contact the switching operation is non-contact, free from wear and needs no power supply. The contacts are potentialfree. Float switches are also available with multiple switch points.
Applications
Level measurement for almost all liquid media
Pump and level control and monitoring for distinct filling levels
Chemical, petrochemical, natural gas, offshore, shipbuilding, machine building, power generating equipment, power plants
Process water and drinking water treatment, food and beverage industry
Special features
Large range of application due to the simple, proven functional principle
For harsh operating conditions, long service life
Operating limits:
– Operating temperature: T = -50 … +350 °C
– Operating pressure: P = Vacuum up to 40 bar
– Limit density: ρ ≥ 300 kg/m3
Wide variety of different electrical connections, process connections and materials
Explosion-protected versions
Glass level gauges
Individual design and corrosion-resistant materials
Continuous and direct level indication without supply voltage: glass level gauges from WIKA consist of a gauge body that constitutes the main element. A liquid channel is machined into it. Other elements are valve heads, process connections, glasses and/or mica shields. The use of mica shields is recommended for certain applications and high temperatures.
Model LGG
The main element of the glass level gauge is the gauge body. Incorporated into this gauge body are the liquid channel (if necessary the heating channel) and the seating faces for the chambered seals and sight glasses. Onto the gauge body are mounted, or are already integrated, the valve heads and process connections. Drain or vent are also possible.
Applications
Continuous level indication without supply voltage
Direct indication of the level
Individual design and corrosion-resistant materials make the products suitable for a broad range of applications
Chemical industry, petrochemical industry, oil and natural gas extraction (on- and offshore), shipbuilding, machine building, power generating equipment, power plants
Oil and gas, heat transfer and refrigeration systems, plants for cryogenics
Special features
Process- and procedure-specific production
Operating limits:
– Operating temperature: -196 … +374 °C 1)
– Operating pressure: Vacuum to 250 bar 1)
Wide variety of different process connections and materials
Illumination optional
Heating and/or insulation optional
Continuous measurement with float
Detect height levels continuously at any time
Our level sensors enable the continuous detection of levels, independent of physical and chemical changes of the media such as foaming, conductivity, dielectric, pressure, vacuum, temperature, vapours, condensation, bubble formation, boiling effects and density change. Via the HART® interface, parallel measurement of interface layer and overall level is possible. The level can be displayed proportional to height or volume. Process connection, guide tube and float can be manufactured from stainless steel 1.4571, 1.4435, 1.4539, titanium or various plastics.
Models FLM-S, FLM-T, FLM-P
The level sensor models FLM-S, FLM-T and FLM-P level level senor are used for the high-accuracy, continuous level detection of liquids and are based on determining the position of a magnetic float according to the magnetostrictive measurement principle. The magnetostrictive measuring principle of the level sensor enables the continuous measurement of levels, independent of physical and chemical changes of the media such as temperature, conductivity, dielectric, pressure, foaming, vacuum, condensation, vapours, bubble formation, boiling effects and density change Via the HART® interface, the parallel measurement of overall level and interface layer is possible.
Applications
High-accuracy level detection for almost all liquid media
Chemical, petrochemical industry, natural gas, offshore, shipbuilding, machine building, power generating equipment, power plants
Process water and drinking water treatment, food and beverage industry, pharmaceutical industry
Special features
Process- and procedure-specific solutions possible
Operating limits:
– Operating temperature: T = -90 … +450 °C [-130 … +842 °F]
– Operating pressure: P = vacuum to 100 bar [1,450.4 psi]
– Limit density: ρ ≥ 400 kg/m3 [25.0 lbs/ft³]
Resolution < 0.1 mm
Wide variety of different electrical connections, process connections and materials
Explosion-protected versions
Model FLRU
The model FLRU level transmitter with reed-chain technology in combination with the WIKA model NETRIS®3 radio unit is used wherever web-based remote monitoring of level measurement in liquid media is desired. Condition-based and preventive maintenance through centralised big data analysis is thus possible.
Applications
Condition-based and preventive maintenance throughcentralised big data analysis
Chemical industry, petrochemical industry, natural gas, offshore, shipbuilding, machine building, power generating equipment, power plants, process water and drinkingwater treatment
Level detection for almost all liquid media
Special features
IIoT-capable measuring instrument in combination with WIKA radio unit, model NETRIS®3
Process- and procedure-specific solutions possible
Operating limits:
Process temperature:T = -80 … +200 °C [-112 … +842 °F]
Operating pressure: P = vacuum to 80 bar [1,160 psi]
Limit density: ρ ≥ 400 kg/m3
Wide variety of different process connections and materials
Intrinsically safe version Ex i
Optoelectronic switches
Featuring a compact design, high media compatibility
Optoelectronic switches are used for the detection of limit levels in liquids. The detection is widely independent of physical characteristics of the liquids such as density, dielectric constant, conductivity and refractive index. The instruments are notable for their compact design and do not feature any moving components. With a measuring tip from borosilicate or quartz glass, and robust stainless steel cases, they offer a high media compatibility.
Models OLS-S, OLS-H
The model OLS optoelectronic level switch is used for the detection of limit levels in liquids. This is widely independent of physical characteristics such as refractive index, colour, density, dielectric constant and conductivity. Measurement is also done in small volumes.
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 engineering
Special features
Temperature ranges from -269 … +400 °C
Versions for pressure ranges from vacuum to 500 bar
Special versions: High pressure, interface measurement
Signal processing is made using a separate model OSA-S
switching amplifier
Model OLS-C20
The model OLS-C20 optoelectronic level switches are used for the detection of limit levels in liquids. This is widely independent of physical characteristics such as refractive index, colour, density, dielectric constant and conductivity. Measurement is also done in small volumes.
Applications
Level measurement for liquid media
Level control and monitoring of distinct filling levels
Machine building
Wastewater and environmental engineering
Special features
Compact design, no moving components
Temperature ranges from -30 … +135 °C
Versions for pressure ranges from vacuum to 50 bar
Mounting position as required
Visual indication of the switching status
Thermometers with switch contacts
Display and monitor limit values
Wherever the process temperature has to be indicated locally and, at the same time, limit values must be monitored, thermometers with switch contacts find their application. The switch contacts make or break the circuit dependent upon the pointer position of the indicating measuring instrument. If the reading is significantly above or below a set value, they trigger an alarm, hence also the term “alarm contact”. The instruments are also suitable for starting, stopping or switching processes.
Model BZG
The external chamber model BZG consists of an external chamber vessel that is mounted laterally to a vessel using at least 2 process connections (flange, thread or weld stub). Through this type of arrangement, the level in the external chamber corresponds to the level in the vessel.
Applications
Level detection for almost all liquid media
Individual design and corrosion-resistant materials make the products suitable for a broad range of applications
Chemical industry, petrochemical industry, oil and natural gas extraction (on- and offshore), shipbuilding, machine building, power generating equipment, power plants
Special features
Process- and procedure-specific production
Operating limits:
– Operating temperature: T = -196 … +450 °C
– Operating pressure: P = Vacuum up to 400 bar
Wide variety of different process connections and materials
Mounting of level sensors and guided wave radars possible as an option
Accessories level
Optimal accessories and mounting components for your level measuring instrument
For level measuring instruments from WIKA, there are a range of accessories and add-on elements available, for example, floats (cylindrical, corrugated, ball-segment, plastic and foam floats), magnetic level gauges with plastic rollers or stainless steel flaps, reed sensors, magnetostrictive sensors, magnetic switches and illumination units.
Model BFT
The model BFT float serves for the monitoring of liquids in bypass level indicators. The magnetic system built into the float transmits the liquid level, contact-free, to externally mounted displays, switches and sensors. Due to its omni-directional, radial magnetic field, a guide within the tube is not needed.
Applications
Float for the monitoring of liquids in bypass level indicators
Individual design and corrosion resistant materials make the products suitable for a broad range of applications
Chemical, petrochemical, natural gas, offshore, shipbuilding, machine building, power generating equipment, power plants
Process water and drinking water treatment, food industry, pharmaceutical industry
Special features
Sealed, pressure retaining design
Density range from 340 kg/m³
Pressures up to 400 bar
Medium temperatures from -196 … +450 °C
Versions for interface layer
Available in 3 case sizes
Model BLR
The model BLR reed sensors are used for continuous monitoring and recording of the liquid level in connection with transmitters. They work on the float principle with magnetic transmission (permanent magnet, reed switch and resistance measuring chain) in a 3-wire potentiometer circuit. A magnetic system built into the float actuates reed contacts, through the walls of the bypass chamber and of the sensor tube, in a resistance measuring chain (potentiometer). The measurement voltage generated by this is proportional to the fill level.
Applications
Sensor for the continuous level measurement of liquids in bypass level indicators
Chemical, petrochemical industry, natural gas, offshore, shipbuilding, machine building, power generating equipment, power plants
Process water and drinking water treatment, food and beverage industry, pharmaceutical industry
Special features
Installation of head-mounted transmitters in the connection housing possible
Wide variety of different electrical connections, process connections, materials and contact separations
Programmable and configurable head-mounted transmitters for 4 … 20 mA, HART®, PROFIBUS® PA or FOUNDATION™ Fieldbus field signals
Explosion-protected versions
Temperature ranges from -100 … +350 °C
Engineered solutions – Level
Your requirement – Our solution
WIKA is a global market leader in pressure, temperature and level measurement technology. Working together with you, we develop comprehensive solutions based on our high-quality measurement technology components, with the solutions ultimately being integrated into your business processes. Also in the field of level measurement, individual requirements demand tailored solutions: Whether particularly large or highly precise – level measurement is our passion.
We offer a wide range of level measuring instruments for temperatures up to 450 °C or pressure ranges up to 600 bar.
A major part of the development is applied to individual solutions for the widest variety of applications in the chemical, pharmaceutical, offshore and petroleum, shipbuilding and food industries, as well as for machine building and plant construction, water treatment plants and increasingly more often for the extensive environmental engineering sector.
Our qualified employees are always dedicated to finding the solution to customer-specific problems. The latest production techniques, uncompromising quality management as well as national and international approvals are further prerequisites for our company’s good name.