RFID UHF Read/Write Head from Pepperl + Fuchs– the most compact reader in its class

Pepperl+Fuchs has expanded its extensive portfolio of industrial identification devices with the IUT-F190-B40 UHF RFID Read/Write Head, featuring 1000mW ERP transmitting power, integrated Industrial Ethernet interface and REST API. Easily integrated into IT systems using the REST API, this versatile UHF read/write head can be fully parameterised and operated via this interface, eliminating the need for PLC programming.

The IUT-F190 also has two inputs and one output, meaning light barriers can be connected directly, making it possible to start and stop the read operation or to detect throughput direction with no additional IO components required. Using the output, a signal light can indicate that the read/write head is ready for operation or that an operation was successful.

Quick and Easy Integration

Designed for medium detection ranges (around 2 meters), the IUT-F190-B40 utilises Industrial Ethernet and REST API technologies allowing it to be quickly and easily integrated into OT and IT systems, an ideal solution for industry 4.0 production control and monitoring & track-and-trace applications. In addition, the integrated web interface of the IUT-F190-B40-UHF can be used for parameterisation and commissioning and when used with the Pepperl + Fuchs IDENTControl Control Interface (enquire for details)  it is possible to connect up to 4 read/write heads at the same time, prebuilt function blocks make installation easy and provides connectivity to several standard fieldbuses and has excellent EMC immunity.

Robust and durable, the IUT- F190-B40 features an IP67 rated PA housing and has a wide temperature range making it suitable for use in numerous demanding industrial environments. Based on UHF RFID technology, this read/write head achieves high read ranges and detection speeds and supports multi-tag reading. The large number of radio approvals and bus interfaces means that the F190 can be used globally.

Compact Design

The built-in, automatically switchable antenna polarisation provides reliable identification even when the tag orientation is inconsistent or unknown. The compact housing (114x112x63 mm) with integrated antenna makes this capable read/write head suitable for installation in confined spaces without compromising on range & transmission power. Emitting 1000 mW ERP makes the IUT-F190-B40 the top of its performance class and is an ideal stand alone solution for a wide range of industrial processing tasks.

Read/Write Head in action

IUT-F190-B40 UHF Read/Write Head Features

  • Direct integration into OT and IT systems via Industrial Ethernet interface and REST API
  • Additional IOs for Trigger Sensors or Signal Lights – (2 x input, 1 x output)
  • Compact and rugged housing for industrial use in harsh ambient conditions
  • Switchable antenna polarisation guarantees reliable tag detection and enhances process flow
  • Powerful UHF read/write head for medium detection ranges
  • Multi-tag reading of up to 40 tags for increased productivity
  • Read/write heads, tags, sensors, and connection technology from a single source
  • Ready-made PLC function blocks for quick and easy system integration (used with IDENTControl)
  • LED status indicator for bus communication and read/write station
  • Network loop through by means of integrated 2 port switch

Read/Write Head Technical Specifications

  • Operating frequency 865 – 868 MHz: EU, Turkey
  • Emitted power 3 – 1000 mW ERP adjustable
  • Operating distance typically 2 metres
  • Rated operating voltage 20 – 30 V DC
  • Current consumption ≤ 500 mA, Power consumption ≤ 10 W
  • Interfaces 1&2 -Ethernet, HTTP, EtherNet/IP, PROFINET IO, Transfer rate 10 MBit/s or 100 MBit/s
  • Ambient temperature range -20 – 70 °C (-4 – 158 °F)
  • Dimensions HxWxD – 63 x 112 x 114 mm
  • Power supply: M12 connector, protective earth: M4 earthing screw
  • Ethernet: M12 plug connection
  • Housing material PA 6.6
  • IP67 rated
  • Radio equipment directive 2014/53/EU EN 301489-1, EN 301489-3, EN 302208, EN 62368-1, EN 62311, EN 50364
  • RoHS Directive 2011/65/EU (RoHS) IEC/EN 63000
  • Degree of protection EN 60529, RFID ISO/IEC 18000-63
Enquire Now


If you are looking for the perfect Pepperl + Fuchs Read/Write Head solution then give Kempston Controls a call, our professional sales and technical teams will be happy to help find the perfect product solution. You can call us on +44 (0) 1933, 411 411, email us at sales@kempstoncontrols.co.uk or use the enquiry form below.


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SicWave – 80 GHz Free-space Radar Level Detection for all Liquids and Solids

The storage of products such as grains, sugar, ore and liquids can take up a lot of space, typically utilising silo systems which can reach considerable heights. Measuring the level of product within these storage facilities can be difficult at the best of times where both the height and the media within can cause various issues with accurate level sensing. Similarly, production processes that involve stirrers and preparation tanks can create internal environments where accurately measuring the level of the contents within is challenging.

Dust and Foam Frustrations

Dust, moisture, foams, the build-up of residues and other obstructions within a storage or processing vessel can frustrate your average sensor, leading to down time, additional costs and frustration. What you need is a sensing solution that can deliver reliable level sensing results no matter how tall the silo or how demanding the process and the media involved prove to be.

To address these challenges and more, SICK, world renowned for their sensor solutions, have created the high-specification SicWave LFR and LBR ranges of level sensors, these sensors utilise an 80 GHz free-space radar technology delivered via a highly-precise narrow beam that is a thousand times more sensitive than previous generations 26 GHz radar technology.

SicWave LBR – For Solid Media Level Detection

SicWave LBR sensors

Demanding situations require dedicated solutions, the SicWave LBR free-space radar provides continuous non-contact level measurements, is highly resistant to external interference, dust and deposits and works with all solids. A high-contrast built-in LCD display option is available, aiding set-up and installation and providing the user with essential sensor feedback data. Utilising a unique non-contact 80 GHz radar technology and a highly-focused narrow beam, the LBR range is simple to install and is maintenance-free. With a wide range of options such as antenna design, process connectivity and housing material types ensures these sensors are ready for any application.

Avoiding Those False Signals

The narrow field of view also avoids the potential for false signals caused by dusts and deposits on walls or by other obstructions inside the storage vessel the LBR Level Sensor helps prevent unexpected downtime.

SicWave is accessible using bluetooth


Remote set-up and interrogation of the sensors is straightforward, either using the on-board WPAN interface to a smartphone or tablet via Bluetooth or through standard HART communication which also enables easy integration with control and diagnostic systems. These sensors feature a 4 – 20 mA output, allowing signals to be monitored and displayed on a cloud-based dashboard environment using IIoT gateways such as SICK’s Telematic Data Collector.




SicWave LBR Solid Media Level Sensor Range Features

  • Non-contact detection principle, continuous measurement
  • 80 GHz free-space radar with various antennas
  • Highly-focused narrow beam microwave radar pulse
  • Built-in high-contrast display option
  • Measuring range: up to 120 m
  • WPAN, HART and Bluetooth communication
  • 4-20 mA output
  • Process temperature: −40 °C to +200 °C
  • Process pressure: −1 bar to 20 bar
  • Sensor element accuracy ≤ 5 mm
  • Process connection options: thread, flange, special brackets
  • Housing: plastic (IP66 / IP67) or aluminium (IP66 / IP68)
  • Certificates: Ex d, Ex ia, Ex ta

View the Range


Typical SicWave LBR Sensor Applications

  • Crushers, belt transfer, raw meal, clinker and cement silos as well as silos for solid fuels
  • Breakers, storage silos for ore, silos in the metal and steel industry
  • Bulk material stockpiles, belt transfer, buffer and production silos in the mining industry
  • Storage and small silos in the food and beverage industry
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SicWave LFR for Liquid Level Detection

SicWave LFR Sensors

The 80 GHz SicWave LFR non-contact free-space radar sensor, with its highly-focused narrow beam, provides continuous level measurements, works with all liquids and is highly resistant to external interference, false signals, foam and deposits. Insensitive to material build-up, the LFR range of level sensors helps prevent unexpected downtime.

Up and Running in No Time!

Easy to commission, the LFR range can be put into operation quickly and easily and is maintenance-free. A wide range of options for antenna design, housing materials and a range of process connections ensure these sensors are ready for any application. A durable stainless-steel housing option is available for use in hygienic environments such as those required in the food, beverage and drug industries. A high-contrast built-in LCD display option is available, aiding set-up and installation and providing the user with essential sensor feedback data. Remote set-up and interrogation is carried out in the exactly the same way as the LBR range.

SicWave LFR Liquid Media Level Sensor Range Features

  • Non-contact detection principle, continuous measurement
  • 80 GHz free-space radar with various antennas
  • Highly-focused narrow beam microwave radar pulse
  • Built-in high-contrast display option
  • WPAN, HART and Bluetooth communication
  • 4-20 mA output
  • Measuring range: up to 30 m
  • Process temperature: −196 °C to +200 °C
  • Process pressure: −1 bar t0 25 bar
  • Accuracy of sensor element ≤ 1 mm
  • Process connection options: thread, flange, clamp
  • Housing: plastic (IP66 / IP67), aluminium (IP66 / IP68) or stainless steel (IP69)
  • Certificates: Ex d and Ex ia, WHG, shipbuilding

View the Range

SicWave LFR sensor in action

Typical SicWave LFR Sensor Applications

  • Chemical industry: large tank storage, storage and buffer tanks, reaction and transport containers
  • Oil and gas industry: mud pits, trip tanks, shakers and wastewater containers
  • Food and beverage industry: large, stirring and preparation tanks, thickener and filling tanks
  • Water industry: storage tanks for flocculants, coarse and fine screens
Enquire Now


Kempston Controls is the place to come to find the perfect SicWave Level Sensor for your next retrofit or installation project. Call us today on +44 (0) 1933 411 441, use the enquiry form below, or contact us via email at – sales@kempstoncontrols.co.uk.


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SIRIUS ACT with PROFINET – Solving a Furnace Control Issue

Despite the efficiency and ease-of-use of modern HMI, sometimes there will be situations where they are not going to be fit for purpose, such as within extremely dusty and hot manufacturing and processing environments. This was the problem encountered when a decision was made to install a control system for a Walking Beam Furnace by a local manufacturer.

Building the Solution

The system required easy mobility of the equipment allowing the operator to raise and lower the beam furnace, move it forward and backward, and open and close the door to the furnace. As the staff had to wear heavy protective clothing due to the excessive temperatures, including thick gloves, this made the use of HMI touch screens impossible. The Siemens SIRIUS ACT product range appeared to be the perfect solution.

SIRUIS ACT controlled walking furnace

The renowned SIRIUS ACT commanding and signalling devices in combination with PROFINET not only reduces installation costs, but also allows direct connection of the commanding and signalling devices to the machine control via PROFINET , providing a high level of flexibility and expandability.

Martin Brown, Product Manager for Siemens in Manchester, said: ‘Our SIRIUS ACT with PROFINET was the ideal solution in this circumstance. It is a robust and durable product that has the highest IP rating, and is ideal for a heavy manufacturing environment. It is also extremely easy to control, even when the operator is wearing gloves.

The application required that the pushbutton station be located a set distance from the programmable logic controller (PLC), and also avoid the need for civil works, such as placing cables underground. The pushbutton station in the existing application featured 14 buttons including a failsafe E-Stop. A couple of the devices had additional inputs and outputs and two of the digital inputs for limit switches on doors that, without the IO, would need to be wired back to the panel. A potentiometer was also used as a speed control for some of the pumps in the system.

A Range of Benefits

The benefits of SIRIUS ACT with PROFINET were obvious, there is just one cable, dramatically reducing the amount of cabling required compared to other solutions. That single cable runs from the PLC to the PROFINET gateway then the pushbuttons are wired from the gateway, simple, cost effective, and time saving.

This solution provided potential for up to 21 signalling devices as well as the pushbuttons and E-Stops that could be connected to Siemens’ Totally Integrated Automation (TIA) Portal. The TIA Portal provides instant feed-back on cable faults with accurate diagnosis. The system also includes a multifunctional and modular Siemens ET200 failsafe central CPU, so, in the event of a connection loss, the failsafe will automatically trigger.

SIRIUS ACT set up in situ

Easy to Assemble

Significant savings on cost and set-up were reported thanks to the simplicity of the system and its installation. The assembly time of the controller took just 2.5 hours, including cutting holes for the pushbuttons and wiring using flat ribbon cable between devices, allowing their engineer to focus on other aspects of the installation.

The simplicity of the SIRIUS ACT with PROFINET system was clearly demonstrated by this project, for the same amount of pushbuttons, but using a different set up, the installation would have required a minimum of: a 35-core multi core cable, a screened cable for the potentiometer, terminals, cables, ferrules, wire numbers, additional digital 16-way IO, and an analogue card. The use of SIRIUES ACT products helped provide an overall installation cost saving of around 50% and with the added advantages of simpler servicing, maintenance and repair schedules, you can’t go wrong.

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SICK W4 Inox Miniature Photoelectric Sensors, Small, Tough & Powerful

Size does not guarantee strength or ability and this is certainly the case with the SICK W4 Inox range, SICK’s first miniature stainless steel photoelectric Inox sensor that has been designed for use in the most demanding hygienic installations, such as Sterilise-in-Place (SIP) & Clean-in-Place (CIP). Capable and dependable, this miniature photoelectric sensor combines stainless steel-shielded durability with in-built remote sensor intelligence, ideal for use in processing plant wet areas and packaging machines such as those found in the Pharmaceutical and Food & Beverage industries.

With an impressive IP69K rating, the W4 Inox Sensor range brings the latest advances in on-board sensor processing power called ‘Smart Tasks’ to fully-hygienic production processing environments. Smart Tasks are intelligent logic functions which the sensors uses to autonomously control process tasks such as counting products, checking sealing caps and pack sizes, and switching actuators.

SICK’s UK Product Manager for Presence Detection, David Hannaby, had this to say about the W4 Inox range.

“The SICK W4 Inox offers all the long-life durability you would expect from a high-class SICK Inox sensor. With a housing made from extremely resistant stainless steel, the SICK W4 Inox is designed to be completely impervious to water ingress or aggressive cleaning media, even in the most challenging conditions.

Regardless of whether you are dealing with a CIP or SIP processes, manual exterior cleaning such as in a filling line, or sterilizing pharmaceutical sterile boxes with hydrogen peroxide, the W4 can be relied on to keep on performing during a long life, as can the all-important connectors and accessories.
Part of the trend towards ‘edge computing’ capability, Smart Tasks remove processing time and load from PLCs or other higher-level controls.

The W4 Inox’s ability to operate defined tasks autonomously and remotely will therefore be particularly attractive in high-speed food processing plants, filling and packaging lines. It offers a chance to improve production efficiency and enable greater process responsiveness including more frequent product changeovers.”



Smarter Than Your Average Sensor

SICK W4 Inox sensor in sit

The W4 Inox’s built-in Smart Tasks initiates logic functions that process the sensors signals, linking them with additional binary switching signals from an external sensor if necessary. The Smart Task utilises this processing data to generate output process signals from the sensor.
For example, the SICK W4 Inox Smart Sensor can detect and measure objects and gaps between bottles on a filling line using the ‘object and gap monitor’ ability. As opposed to the PLC interpreting data, the W4 Inox alerts the control system only if there are deviations from predetermined values while controlling the process at hand.

The W4 Inox’s “counting and debouncing” Smart Task feature enables a quick completeness check, offering extra protection against errors caused by PLC cycling time. Immune to ambient light and with excellent background suppression the W4 can detect reflective, transparent, and jet-black objects with ease.

SICK W4 Inox sensor in situ

SICK W4 Inox Miniature Photoelectric Sensor Range Features

• Built-in ‘Smart-task’ internal signal process control
• Resistant to a large variety of disinfectants and cleaning agents
• Ideal for extreme washdown applications, CIP, SIP
• Highly visible laser-like light pinpoint LED
• Background suppression
• Teach-in button and cable adjustment options
• PNP, NPN switching output versions
• Flexible sensing settings, monitoring, diagnostics
• IO-link provides easy data access via PLC, easy to set up
• Available in a range of sensing distances up to 5 metres
• Detects reflective, transparent and black objects
• 316 L Stainless steel body
• Injection moulded unibody housing
• IP69K rated, water tight construction
• Range of connectivity options

View some of the range on offer

LCP & LCS Range of Control Units from Pepperl+Fuchs

Control Units from Pepperl+Fuchs: LCP & LCS Range

Designed to ensure the smooth operation and monitoring of electrical circuits and machinery in hazardous environments; the LCP and LCS series are versatile control units equipped with several operators.

Pepperl+Fuchs’ LCP and LCS range can provide control units with different functions such as pushbuttons, LED indicators, control switches, potentiometers, and ammeters.

Made from durable glass fibre reinforced polyester (LCP range) or hygienic electropolished stainless steel (LCS range), Pepperl+Fuchs’ portfolio of control units is ideal for a wide range of harsh environments.

LCP Range – Glass Fibre Reinforced Polyester Control Units

The LCP series of control units are highly versatile and are available as standard off-the-shelf configurations from stock on short notice. What’s more, the flexible design accommodates up to four operators in one enclosure to meet any application.

Manufactured from glass fibre reinforced polyester, the LCP range and its high-quality components and accessories are durable and perfect for harsh environments.


  • Glass fibre reinforced polyester (GRP) enclosures
  • Installation in Zone 1, Zone 2, Zone 21 and Zone 22
  • Ex de, Ex ib and Ex tb certified
  • Up to 4 operators per enclosure
  • Customisable configuration of operators, cable entry quantities, & cable gland types
  • Wide range of labels and accessories available
  • Two enclosure size options
  • IP66 rated

View the Range

LCS Range – Stainless Steel Control Units

Like the LCP series, the LCS range of control units is versatile and available in standard off-the-shelf configurations. Moreover, the LCP series is customisable for specific applications with a wide variety of operators, labels, cable glands, and accessories available.

Manufactured using electropolished stainless steel; the LCS series provide excellent corrosion resistance and designed to meet the strict hygiene requirements in pharmaceutical and food processing applications. The durable materials and high-quality components mean the LCS range is ideal for use in harsh environments.


  • Stainless Steel enclosure
  • Ideal for hygienic applications
  • Installation in Zone 1, Zone 2, Zone 21 and Zone 22
  • Ex de, Ex ib and Ex tb certified
  • Up to 4 operators per enclosure
  • Customisable configuration of operators, cable entry quantities and cable gland types as per specification
  • Wide range of labels and accessories available
  • Three enclosure size options
  • IP66 Rated

View the Range

When it comes to finding the ideal Control Unit for your application, look no further than Kempston Controls. As a supplier partner for Pepperl+Fuchs, we have access to their entire product range at the best possible prices. And remember, if you can’t find the product you need on our website, call one of our sales team on +44 (0) 1933 411411 or email sales@kempstoncontrols.co.uk to discuss your requirements.

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Capacitive Sensors, Helping you find your level

The LevelMaster Capactive Sensor options from Rechner, which come complete with the widely used G½” thread, have been specially designed to cater for smooth and sticky media making them perfect for a huge range of level control situations in the pharmaceutical and food and beverage industries

The original LevelMaster Sensor range, which set new standards for the detection of sticky or highly conductive media, have now been complimented by a low dielectric version for dry and powdered products. Capable and dependable, these level sensors also feature Rechner’s ATEX All-In-One direct PNP connection thus eliminating a costly interface barrier typically needed in such installations.

The dielectric constant, DK or Ɛr, is the permittivity of a detected product which is the parameter measured by Capacitive Sensors. The higher the dielectric constant of the material, the easier it is to detect.

Reliable Solutions

One sensor cannot cover all applications and so there are two highly-reliable solutions. One uses high frequencies for the higher DK applications and a second, low-frequency option for very low DK media detection.

capacitive sensorThe LevelMaster-KS-801 series offers the optimum level control of conductive and/or sticky products with high a DK, such as fruit purées, syrup, sauces, vinegar-based preparations and conductive egg-based products such as batter and mayonnaise. These sensors are also excellent for all dairy applications including yogurt level control. For bulk materials with a lower DK, such as sugar, coffee, flour or maize meal, there’s the LevelMaster-KAS-80 range of ATEX certified sensors which can detect products with a dielectric of Ɛr 1.1.

LevelMaster Sensors are always set with a ‘Full’ configuration. A media optimisation facility then enables them to ignore any product build-up which has stuck onto the sensor face, so a wide range of media can be detected with just one setting.

Simple Set-Up

Set-up couldn’t be easier, once installed, sensor adjustment is done via an Easy Teach by Wire (ETW) facility, no PC or additional programming interface devices are required making initialisation straight forward and error-free whether at the sensor or the control panel.

The LevelMaster sensing tip is of an FDA-approved material plus it has traceability to EC 1935/2004. The build material of the Capacitive Sensors have a high-chemical resistance and the surface quality is also in accordance with the needs of the Pharmaceutical and Food Processing Industries, e.g. a roughness depth < 0.8 µm which guarantees excellent cleanability for CIP & SIP regimes.

As standard, each Level Sensors includes the Rechner Quatro-Protect facility, which has the highest protection against electrical noise, spikes and transients delivering the best safeguard available from all interference. For easier installation G½” welding adaptors as well as other process connections such as Tri-Clamp or Varivent adaptors are available.

Capacitive Sensor Overview

  • Options for high or low dielectric media
  • Reliable LevelMaster-KAS-80 detection of low dielectric powders or products
  • ATEX certified All-In-One sensor format for Dust Zone 20 and Gas Zone 1 installations
  • LevelMaster-KS-801 level detection of wet sticky and/or conductive products
  • Easy and reliable set-up for fit and forget installations
  • Approved housing materials for Food + Pharmaceutical
  • IP69K high sealed body for aggressive wash-down applications.
  • Quattro-Protect for the highest immunity against electrical interference
  • Media optimised to sense similar products with one setting
  • Solid state electronics with no moving parts for long service life
  • LevelMaster sensors can be mounted in any orientation
  • A large range of process fittings are available including Tri-Clamp and other formats.

capacitive sensors

See the Ranges

Kempston Controls stocks an extensive range of Rechner Sensors to help you solve your level detecting issues straight off-the-self, but not only do we have masses of sensors in stock we have access  to the entire Rechner Range! Whatever your sensor requirements, give us a call on +44 (0) 1933 411411 or email us at sales@kempstoncontrols.co.uk to discuss your needs.

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