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.

By means of the level sensor, the level can be displayed proportional to volume or height.

Installation and commissioning of the level sensor is simple: Only one calibration is carried out, a recalibration is not required. Float, process connection and guide tube can be manufactured from titanium, stainless steel 1.4571, 1.4435, 1.4539 or various plastics.

ALM level sensors are used to measure and transmit the level of liquids in conjunction with a customer’s control unit outside of the containment area. It is based on the float principle with magnetic transmission in a 3-wire potentiometer circuit.

The resistance measuring chain is closely stepped. Due to this assembly the generated voltage is approximately continuous. Signal transmission over large distances and use in hazardous areas are possible.

The model RLT-3000 level sensor with temperature output combines the recording of the level and temperature of liquids in a single measuring point. The stainless steel used is suitable for a multitude of media, such as, for example, oil, water, diesel and refrigerants.

Measuring principle
A permanent magnet built into the float triggers, with its magnetic field, the resistance measuring chain built into the guide tube. The built-in transmitter converts the signal of the resistance measuring chain into a 4 ... 20 mA current signal. The current signal is proportional to the level. For the temperature measurement, there is a platinum measuring resistor built into the end of the guide tube.

The model RLT-3000 is also available with 2 optional 4 ... 20 mA analogue outputs.

The model FLR-SC level transmitters with reed measuring chain are used for level measurement in liquid media. They work on the float principle with magnetic transmission.

The float's magnetic system in the guide tube actuates a resistance measuring chain that corresponds to a 3-wire potentiometer circuit. The measurement voltage generated by this is proportional to the fill level.

The measurement voltage is very finely stepped due to the contact separation of the measuring chain and is thus virtually continuous. Depending on the requirements, several different contact separations are available.

The head-mounted transmitter in the case can be configured wirelessly via an app. The head-mounted transmitter communicates the measured values, via Bluetooth^®, to a device such as a smartphone or a tablet, which displays the level graphically. In addition, the instrument description, the TAG number and also the 0 % and 100 % marks can be easily configured via the app.

The model FLM-H magnetostrictive level transmitter has been specifically designed for the requirements of the food and beverage, pharmaceutical and biotechnology industries. The level transmitter is particularly suitable for the special conditions of CIP/SIP cleaning processes, such as chemical stability towards cleaning liquids and high temperatures.
The guide tube is directly welded to the process connection. This guarantees a crevice-free joint, additional sealings are not required.

The level transmitter is supplied with a DC voltage of 10 ... 30 V. Available electronic output signals are 4 ... 20 mA or 4 ... 20 mA with HART^®signal. The hygienically designed sensor housing, with an ingress protection of up to IP68, offers a secure protection for external cleaning with splash water and enables its use in high-humidity environments. The model FLM-H level transmitter fulfils the high demands of sanitary applications.

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.

Level transmitters of this model series work on the floatprinciple with magnetic transmission and are used wherever centralised, web-based remote monitoring is required.The float's magnetic system in the guide tube actuates aresistance measuring chain that corresponds to a 3-wire potentiometer circuit.

The measurement voltage generated by this is proportional to the fill level.The measurement voltage is very finely stepped due to the contact separation of the measuring chain and is thus virtually continuous. Depending on the requirements, several different contact separations are available.

The FLRU reed level transmitter is part of the WIKA IIoT solution. With this, WIKA offers a holistic solution for your digitalisation strategy.