A Laser Through Beam Sensor with the Edge

The Conventional infrared though beam sensors found in many manufacturing installations can generate unexpected malfunctions that could lead to many hours of investigation and maintenance to resolve.  Panasonic design engineers embraced this situation as a challenge, find a way to simplify this investigative process and make life easier for the operators and engineers involved in the tasks at hand, ultimately saving companies time, money and a lot of hassle!

Designed for use on manufacturing and processing lines, the HG-T Series Laser Through-beam Sensors feature a built-in self-monitoring function that diagnoses the current operational state and notifies the user when readjustment of established settings have drifted and when maintenance is required. The sensor determines its status and indicates Normal, Notification, Caution or Fault via its controller. When not in its normal status, the sensor identifies the cause of the problem and the corrective measures required, reducing equipment downtime and maintenance workload.

Finding the Edge

A HG-T Laser Through-beam Sensor installation, which consist of an emitter,  receiver unit and a controller, produces a flat, belt-shaped laser beam with a height of 10 mm which is ideal for tasks such as checking the contours of an edge, shaft diameters or the inside diameter of a product. The sensors have a sensing range of 500 mm, achieving a repeatability of < 1µm and have a linearity of less than ± 12µm over their measurement range, meaning that they are suitable for a wider range of applications than those infrared sensors with a shorter sensing distance.

Quick to install, the sensor heads are equipped with a beam alignment function to help speed up commissioning. Easy to set up by simply plugging the sensors into the controller unit which then automatically detects whether the emitter and receiver are connected correctly.

laser through beam sensor

Available in two different sensor head versions, both with the same capabilities and only differing in their physical dimensions. The receiver of the slim version is 10 mm narrower than the standard model making it suitable for installations with very limited space where the standard version would perhaps be too large.

HG-T Sensors Model Numbers – HG-T1010, HG-T1110 Features

  • Compatible controllers – HG-TC101, HG-TC111, HG-TC113
  • CMOS based position detection
  • Measurement range – 10 mm
  • Sensing range – 0 to 500 mm
  • Supply voltage 24 Vdc, voltage output range 0 to 5 V
  • NPN, PNP output types
  • Poly carbonate casing, 2 metre cable, IP67 rated
  • Red semiconductor laser, class 1 (IEC/JIS/GB/FDA) Max. power of the emitting element 0.3 mW, laser wavelength 655 nm
  • Repeatability 1μm (installation distance: 20 mm) 2.5 μm (installation distance: 100mm) 5μm (installation distance: 500 mm)
  • Linearity ±0.12% F.S. (installation distance: 20 mm) ±0.28% F.S. (installation distance: 100 mm)
  • Object to be sensed Min. ø 0.5 mm (installation distance: 500 mm)
  • Standards – EMC Directive, RoHS directive, FDA regulations
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laser through beam sensor

The HG-T Laser Through-beam Sensor Controller

The HG-T Through-beam sensor controller unit (purchased separately or as part of a kit) is equipped with a current voltage output that can be selected according to the application requirements. A 2 line digital display simultaneously shows the sensor head measured value the calculated value with an intuitive circle meter helping to display the values in a simple way. Six types of detection mode to select from make commissioning with this controller easy. External inputs allow the user to control laser emission, reset the device or save data during the process, supports high-speed sampling with a frequency of up to 2kHz.

  • Six types of detection mode
  • Auto edge detection mode
  • Edge detection mode
  • Inside diameter / gap detection mode
  • User assigned edge detection mode
  • External form / width detection mode
  • Central position detection mode


Outstanding sensor performance

Thanks to functions like filters, edge detection, light intensity checks and averaging of measurement values (up to 1024), means that the measured parameters can be relied upon. These functions help you to detect, at an early stage, when the measuring process isn’t running correctly and attention is needed.

laser through beam sensor


Multiple sensors

The master-slave system allows you to connect up to 15 laser through beam sensors in series. Another handy and time saving feature, increasing ease-of-use, is the ability to copy settings from the master to the slave units, with an LED indicating when copying is in progress.

HG-T Laser Through-beam Sensor Applications

  • Guiding the sheet edge of battery electrodes
  • Checking diameter and position of threads or wires
  • Detection of individually stacked wafers
  • Guiding of translucent films
  • Measuring of drill holes in motor components
  • Measuring the material thickness of films or textile webs
  • Highly precise measuring and checking of web edges
  • Glass substrate positioning
  • Diameter measuring

Note: The optional side view mirror makes it possible to deflect the beam by 90°.

View the Range

Kempston Controls has a long-established relationship with Panasonic which gives us access to their entire product portfolio. Speak to us today either by phone on +44 (0) 1933 411 411, email via sales@kempstoncontrols.co.uk or using the contact form below. We will be happy to discuss your requirements and help you ensure that your new installation or retrofitting project goes exactly as planned.

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The PP20H Pressure Sensor from Baumer, the ideal Hygienic Pressure Sensor Solution

There are many manufacturing and processing industries that demand high levels of hygiene, such as the food and beverage industry and pharmaceutical manufacturing.  Within the installations that operate in those sectors there will probably be a need to accurately measure and monitor the pressure of fluids and gasses, which is where the need for a dependable pressure sensor comes in. The pressure sensors will of course need to guarantee that they can withstand demanding cleaning schedules, won’t trap and harbour processing media traces and are as accurate, robust and dependable as possible. Baumer are renowned for their impressive pressure sensor portfolio and they have the ideal sensor solution for demanding applications.

pressure sensor environment

The PP20H Hygienic Pressure Sensor 

With its modular design, pressure ranges from –1 to 40 bar and a wide array of process connections the PP20H Hygienic Pressure Sensor series from Baumer is of a fully welded stainless steel construction and features a condensation-resistant silicon measuring cell.  This top-spec Pressure Sensor can be configured from a wide range of parameters to suit your process requirements including measuring range, accuracy, type of pressure, output signal, process connection and more. Available optionally with IOLink, (in parallel with  4 … 20 mA) they meet the high hygienic requirements of the food and pharmaceutical industries and are CIP and SIP-capable.

PP20H Pressure Sensor

Processing Safety

Excellent temperature and long-term stability coupled with high accuracy guarantee the safe monitoring, operation and control of demanding hygienic processes in a humid environment, even with frequent temperature cycles.

  • Small form factor means greater flexibility
  • The pressure sensors cover a wide media temperature range from –20 °C to 125 °C without a bespoke cooling line. More compact, less space is required in the system.


Pressure Sensor Features and Benefits

  • Absolute pressure, relative pressure and vacuum measurement
  • All typical hygienic connections options available
  • Resistant to all common CIP cleaning media
  • Condensate-proof measuring cell
  • Optionally available with IO-Link (in parallel with  4 … 20 mA)
  • Space-saving design
  • Design and materials meet food and pharmaceutical standards
  • Versions compliant to 3-A sanitary standards, FDA and with EHEDG certification
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PP20H Pressure Sensor IOlink

IO-Link for Centralised Configuration

When an IO-Link option is utilised, this makes it possible to configure several pressure sensors simultaneously, simplifying switching point adjustment for different process stages and ultimately saving time and money. Data is the fundamental building block of process and product optimisation and using IO-Link ensures that valuable, additional data is accessible for analysis. Apart from the analogue 4 … 20 mA signal, further data such as cell pressure and pressure sensor temperature can be recorded. This process data can be used, for example, to determine the temperature of the medium being used. Further data that can help to identify the sensor can be loaded at any time using tags that can be configured individually.

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The Baumer PH20H Pressure Sensor range are the go-to-solution when it comes to reliable absolute and relative pressure and vacuum measurement in demanding hygienic environments. As Baumer supplier partners Kempston Controls has access to their entire product portfolio. Call our dedicated call centre on +44 (0) 1933 411 411 or email sales@kempstoncontrols.co.uk, or, alternatively use the enquiry form below to discuss your hygienic pressure sensor requirements with us today.


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SPEETEC Sensors -Motion Capture without Contact

The rugged and maintenance-free SPEETEC laser surface motion sensor detects the movement of the surface of a target object without any physical contact. The laser Doppler effect-based technology of this contact-free sensor allows it to measure the speed, length, movement direction and the position of objects of almost any surface type.

Delicate Materials? No problem…

Dependable and gentle, the non-contact measurement method used by the sensor makes it particularly suitable for applications with soft or sensitive surfaces that would be damaged by conventional wheel measurement processes. The SPEETEC is also the ideal solution for use in encoder-based applications that feature fast and dynamic processes that are physically unsuitable for encoders to be used effectively.

  • Non-contact measurement speed, length and position of objects without measuring elements
  • Compatible with multiple materials, colours and surfaces
  • Very high measurement accuracy and repeatability
  • Laser class 1
  • Rugged design, compact dimensions, low weight
  • Standardised communication interface
  • Speed – up to 10 m/s
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Contact Free and Easy to Integrate

As the SPEETEC Sensor measures without making physical contact, it enables new applications in automation where direct measurements on sensitive and soft surfaces needs to be avoided due to damage that could be caused by full contact methods.

Thanks to the compact dimensions and the standardised communication interfaces it’s easy to integrate the SPEETEC into new or existing plant and they are simple to set-up and install, requiring no specialist support equipment.

Utilising an infrared class 1 laser, these dependable non-contact sensors require no additional protective or specialist devices during operation, such as safety glasses or protective housings, and no special safety training for staff is required.

The capable infrared class 1 laser utilised in this sensor delivers exact speed values of up to 10 m/s with very high repeatability. Whether endless materials or individual production pieces, the high-resolution laser enables a maximum resolution of 4 µm and, on a one metre path, the sensor measures material lengths down to the final millimetre. Superbly reliable, these contact free sensors are perfect for a wealth of applications in countless industrial applications.

The laser-based technology also prevents contamination on the material surface to be measured and in addition, the laser is wear-free, this helps maintain process reliability with minimal maintenance downtime and associated costs.





Perfect for Speed and length measurement in a packaging process with simple electrical and mechanical integration, without damaging and abrading material with a measuring wheel.



Tyre Manufacturing



Non-contact and precise speed and length measurement directly on the rubber or other soft and slippery materials, eliminates slipping.




Building Materials



The production of plasterboard requires a very high level of quality and the fast production processes involved depend upon on a reliable measurement to ensure the standard dimensions of the plasterboard is maintained.



Digital Printing



Speed measurement directly on the object being printed upon without damaging its sensitive surface and with a high signal quality and resolution, the SPEETEC sensor helps delivers optimal print results.






Quality control for cutting processes through automated 100 % length measurement directly on the material with enhanced process control and analysis.



Textile Industry



The non-contact motion sensor measures the speed and length of fabric sheets optically. Inaccuracies caused by slippage or impairment of the product are no longer a problem.



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View the SPEETEC Range


Series UC18GS with IO-Link

Pepperl+Fuch UC18GS Series with IO-Link: State-of-the-Art Ultrasonic Sensors

Pepperl+Fuch’s new UC18GS series of ultrasonic sensors combine the advantages of ultrasonic technology with powerful features to create a solution that pushes the technological boundaries to meet virtually any application challenge.

Flexible and future-proof, the UC18GS is well equipped to tick all imaginable boxes and combines everything you would expect from a standard ultrasonic sensor with modern technology. Perfect for a wide range of applications, this compact sensor is up for any task and can adapt to any environment, program or setting.

UC18GS with IO-Link

UC18GS with IO-Link Top Highlights

  • Adjustable sound beam width
  • Interference target suppression
  • Automatic synchronisation
  • Small dead bands
  • IO-Link for easy setup
  • Extensive programming options

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UC18GS Series: one compact sensor, a multitude of applications

Using modern technological capabilities, the UC18GS series will optimise your application. With functionalities such as interference target suppression, adjustable sound beam width, automatic synchronisation, small dead bands, IO-Link, infrared interface, and push buttons, the UC18GS series offers an unparalleled range of features and adjustment options all in a single device.

UC18GS series: Interference Target Suppression

Interference Target Suppression

With built-in interference target suppression, the UC18GS ultrasonic sensor range adapts to the application settings to optimise and increase process reliability. The intelligent suppression is capable of detecting precisely even if a suppressed component is in the target range.  What’s more, any possible interference from other machine parts can easily be suppressed using the integrated software without affecting everyday use.

UC18GS series: Adjustable Sound Beam Width

Adjustable Sound Beam Width

Thanks to the small dead band and adjustable sound beam width, the UC18GS ultrasonic sensor is able to perform without faults in a range of applications. To ensure precise and accurate measurements, the sound beam can be adjusted and narrowed without affecting the range. Perfect for installation to your existing application!

UC18GS series: Automatic Synchronisation

Automatic Synchronisation

Often when using several sensors in close proximity they interfere with each other; this, however, is no problem for the UC18GS series. Equipped with an automatic synchronisation feature, the UC18GS range can easily sync with multiple sensors without parameterisation. Using their synchronisation input up to 10 sensors can be synchronised together. The UC18GS range has 3 different synchronisation modes: common, multiplex or externally triggered.

Extensive Programming Options

Extensive Programming Options

Whether it’s traditional pushbuttons or interfaces like IO-Link or IrDA, the UC18GS range of ultrasonic sensors gives the user a wide range of programming choices. While IrDA interfaces can provide live data access for maintenance or analysis purposes, IO-Link provides easy setup and allows detailed configuration for any application. The output configuration, as well as the sound beam width can be set directly on the sensor using the programming buttons.

In addition, the IO-Link interface allows for seamless integration into Industry 4.0 applications.

Series UC18GS: One Technology—Limitless Versatility

No two applications are the same with each providing its own unique demands on a sensor. Designed to be highly robust and technologically advanced, the UC18GS is perfect for complex tasks in any environment, whether that’s the detection and identification of objects or filling levels.

Adaptable Level Measurement in Confined Spaces

The UC18GS series can reliably detect the fill level of liquids and granules, regardless of colour or other physical properties. With the adjustable cone-shaped sound beam width, even a small opening in the tank cap is suitable for installation.

In the case of irregular or moving surfaces, the sensor determines an average value and thus indicates the actual level —instead of a potentially distorted punctual value. Objects such as support struts in the measuring field are suppressed by software (PACTware) to reduce interference and to return precise results. Regardless of the sound beam radius, the range of the UC16GS series is not affected and the level is always reliably detected.

Fail-Safe Bottle Detection in Filling Machines

Ideal for reliably detecting the presence of bottles in the end positions on a production line, the UC18GS series can detect an object with varying contours and position deviations. Instead of taking a point-by-point measurement, the sound beam hits the surface of the container over a wide area making its shape, colour and texture irrelevant. The physical buttons on the UC18GS series mean the output configuration and the sound beam radius can be set with ease.

With the IO-Link interface, comprehensive parameters can be set via the controller without physical access to the sensor. This leads to faster commissioning time and removes the need for re-parameterisation if the sensor needs to be changed.

Kempston Controls is the place to come to for all your sensing needs. With access to Pepperl+Fuchs’ entire product portfolio, our expert sales and technical teams are here to help you choose the perfect sensor for your application. Call us today on +44 (0) 1933 411 411 or email us at sales@kempstoncontrols.co.uk to discuss your sensor requirements.

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POG 83 rotary encoder

Baumer’s POG 83 Series Rotary Encoders, Built for a life at Sea

Rotary encoders, or shaft encoders as they are often referred to as, are a popular engineering choice when it comes to location, speed and distance monitoring of an axle or a shaft that is located within a mechanical system. Typical encoder applications include industrial control systems, robotic production lines and conveyors, cranes, radar systems and more. Typically, Rotary Encoders come in two particular variants, these being absolute and incremental, absolute encoders provide details of a shaft’s current location, incremental encoders monitor the angular motion or the position of a shaft.

Electro-mechanical in nature, angular position and motion data from the monitored shaft is detected and converted into an analogue or digital signal for interpretation by other aspects of the installations control system to gauge speed, location, distance and act upon that information.

When it comes to motion, speed and distance monitoring in demanding conditions such as those found at sea, you will need a Rotary Encoder that has been specifically designed to resist and ignore the harsh and demanding environmental it is destined to function in.

POG 83 rotary encoder Offshore

Survival at Sea

Baumer are world renowned for their technically advanced Rotary Encoders and their POG 83 range is no exception having been designed specifically for harsh marine and offshore environments. These hardwearing Incremental Rotary Encoders are the go-to device for navigating your way around the extremely harsh perils of a working life at sea.

The POG 83 variants shown below are Incremental Rotary Encoders, with optical sensing and have been specifically designed to resist the adverse conditions found on deck all thanks the materials used and the impressively robust construction which ensures they remains environmentally sealed throughout their entire lifetime. Capable and durable, these rotary encoders pass IP tests not only when new or following DNV-GL tests, but even after via additional stress tests that simulate the aging effects of the sea.

Whatever you can throw at them these Incremental Rotary Encoders are suitable for a wide range of applications including – on-board cranes, floating cranes, on-deck motors, winches and many more.

POG 83 rotary encoder offshore installations

POG 83 Series of Offshore and Marine Incremental Rotary Encoder Benefits

  • High resistance to demanding sea conditions
  • High corrosion resistance to adverse deck conditions
  • No corrosion with salt spray or salt surface drying due to the high-quality stainless-steel housing
  • Liquid tight during temporary water overflow or high-pressure cleaning
  • Resistant to shocks and vibrations caused by waves or docking manoeuvres
  • Robust housing and high-quality ball bearings
  • Maximum machine availability
  • Long-term sealed design prevents the entry of water and vapour
  • Longer service life proven by upstream stress tests and IP tests
  • Minimised service costs, less frequent servicing
  • Variations with DNV-GL approval for simplified ship approval
  • Ready for the roughest conditions on deck
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POG 83 and POG 83 DNV-GL Incremental Rotary Encoders

POG 83 Rotary encoder

POG 83, POG 83 DNV-GL Shaft Encoder Common Features

  • Specially designed for deck machinery and cranes in offshore and marine environments
  • Stainless steel construction with optical sensing
  • Solid shaft ø11 mm with EURO flange B10 (ø115mm)
  • Robust bearings for extended service life
  • M23 flange box and circular plug-in connector in stainless steel
  • Protection class IP 66, IP 67, and IP 69K, offshore and saltwater firm
  • Pulse per revolution 512 – 4096
  • Phase shift 90 ° ±10°


POG 83 Additional Features

  • Tested long-term sealing with an expanded test series beyond DNV-GL
  • Voltage supply 4.75 – 30 Vdc
  • Approvals CE, UL/E217823


POG 83 DNV-GL Additional Features

  • Tested long-term sealing with stress tests
  • DNV-GL tested for quick ship approval
  • Voltage supply 7 – 24 Vdc
  • Approvals CE, UL/E217823, DNV GL


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You can rely on Kempston Controls to help you find the perfect Marine and Offshore Rotary Shaft Encoders specific to your application. With access to the entire Baumer catalogue of products you need not go anywhere else. Call us today on (0) 1933 411 411 or email us at sales@kempstoncontrols.co.uk, or contact us using this form to discuss your requirements.

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PowerProx Sensors – Powerful Photoelectric Sensing in Miniature

Photoelectric Sensors are utilised in a vast array of industrial applications, from monitoring products on a production line in a food and beverage processing plant to controlling automatic doors for safety and security. Whatever the installation, there is a photoelectric sensor out there to suit your particular application, but when the installation is limited in space, you need a quality photoelectric sensor from one of the worlds renowned leaders in the design and manufacture of dependable sensor technology, SICK.

Powerprox Sensor in situ

SICK has taken its ultra-reliable, high-performance, PowerProx sensor and shrank all that technology into a space-saving miniature housing that is capable of some of the longest detection range distances ever achieved for a sensor of this scale.

Size Does Matter

The diminutive SICK WTT4SL PowerProx Mini photoelectric sensor measures in at just 12.2 x 41.8 x 17.3 mm but packs a big punch, delivering outstanding performance that you would expect from a sensor 4 times its size. Capable of detecting objects up to 1300 mm away. The knock out performance of the WTT4SL makes it ideal for high-speed production and logistics applications.

This capable photoelectric sensor can be integrated into tight machine spaces such as the grippers of picking robots or for material handling duties in AGVs, as well as for empty bay and clearance detection in high-bay warehouses.

Packed with innovation, SICK has crammed its renowned autocollimation time-of-flight sensing technology into the tiny housing. Autocollimation ensures reliable high-speed detection and outstanding repeatability even in challenging ambient conditions, without cross-talk interference from other sensors.

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Finding the Edge

Even at high process line speeds the ultra responsive PowerProx Mini will register the leading edges of products with precision, even through small holes, such as those found during the quality control inspection of automotive parts and assemblies. Its red-light Class 1 laser, small-light spot size and wide angle of incidence with switching frequencies up to 1 kHz ensure highly-competitive performance across a broad range of applications.

David Hannaby, SICK’s UK Product Manager for Presence Detection stated :
“The SICK PowerProx Mini can replace through beam, background suppression or reflex sensors, so machine builders and production teams can streamline their inventories while still guaranteeing high-performance sensing. The PowerProx Minis can be set up in an instant using the on-board teach-in function, or via IO-Link. It’s all the reliability, repeatability and versatility you expect from SICK, packed into a sensor no larger than a packet of sugar cubes.”

Powerprox Sensor in situ

Easy to Configure

The PowerProx Miniature Photoelectric Sensor can easily be configured for multi-task applications, packed with features including the option of IO Link communication and up to 8 variable switching outputs. Detection is guaranteed with 100% background suppression ensuring that only the desired target is detected, ignoring any interference from shiny objects and materials behind the detected subject. Available in speed or distance variants for optimum performance and with superb repeatability ensuring reliable component counting, sorting and quality control applications in high-speed fast moving consumer good processes, even with products that feature varying surfaces.

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If you are looking for a reliable Miniature Photoelectric Sensor solution then look no further than Kempston Controls to help you decide upon the best product solution for your particular installation. With access to the entire SICK product range we have all of your bases covered, give us a call on (+44) 1944 411 411 or email us at sales@kempstoncontrols.co.uk, or use this contact form today to discuss how the PowerProx Miniature Sensor can help you.

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