News

Conductivity Sensors Are Now Available For ATEX Zone 0 And 20

(03.12.2010)

The conductivity sensors or guards against leaks are designed for detection of electrically conductive liquids. They are ATEX certified for use in potentially explosive areas Zone 0 (gas) and Zone 20 (dust). The sensors are designed as 2 wire versions according to NAMUR DIN 60947-5-6.

Thanks to a built in 12 turn potentiometer, it is very easy to make the ideal adjustment for the liquid to be detected.

The conductive sensors are available in different body sizes, like for instance M 10 x 1,  M 12 x 1 or 1/4“ NPT. High quality materials are used for the parts of the sensor bodies that are in contact with the product. Therefore the sensors can be used for applications in the Chemical and Food Industries. 

The conductivity sensors are used for limit value measurement in containers and leak detection in pumps, like pneumatic diaphragm pumps, peristaltic pumps or centrifugal pumps. Furthermore they are used in general terms for Min- and Max-Level control of liquids.

SPS/IPC/DRIVES exhibition in Nuremberg - A great success for Rechner - Thank You!

(26.11.2010)

Thank you very much to all of the many visitors, who visited our stand. Last year we were extremely pleased with the growing number of visitors. This year has exceeded all expectations!

We have also appreciated the increasing number of specific professional discussions. Many visitors arrived complete with actual application tasks. These challenges in many cases could be solved directly with our application engineers on the stand, or by arranging further meetings for the near future. We would like to say a special thank you to all our visitors. Our team was very busy and we were pleased with the quality of the meetings and the many interesting discussions during the course of the event. 

A very special thank you must go to our customers that allowed us to show and exhibit their machines on our stand. The visitors appreciated these real application examples. An important component of this successful exhibition. 

We are looking forward to seeing you at the next SPS/IPC/Drives 2011

XS-Series of Capacitive Sensors when space is tight

(26.10.2010)

For level controls where only limited mounting space is available, the XS-series of capacitive sensors from RECHNER could well be the answer. With only 40 mm in length and M30x1,5 thread, a very small space is required. All relevant technical data are the same as for its larger brothers of the NormLine series.

The lateral cable exit and the low weight are further advantages of this compact proximity sensor. With the current development towards light and compact machines and plant equipment, the XS-series, which conforms to this trend, is the perfect solution.

Capacitive Sensors With Relay Output for ATEX areas with risk of dust explosion

(13.10.2010)

RECHNER has extended its range of 95 series models of capacitive level sensors with relay output, with versions that can be used in areas with potential risk of dust explosion.  Wherever combustible dusts are manufactured, transported, stored or packed there is a potential risk of dust explosion. Even when the product itself is harmless, explosive dust can arise during the processing. So, for example, dust explosion areas are not rare in the Food, Pharmaceutical  or Chemical Industry.

For more than 25 years RECHNER-Sensors have produced certified models for use in potentially dust-explosive areas. RECHNER’s High Performance  series 95 capacitive sensors with relay output are incredibly versatile level probes. The universal supply voltage range from 20...250 V AC/DC, the simple mounting and installation and the potential-free relay output are all key benefits for the user. Further advantages provide the various options: like adjustable time delay (from 1 sec. up to 10 min.) and changeable on- or off-delay.   Moreover the sensors have a low power consumption of only 2 mA. The sensors are available with body sizes of M 30 x 1.5, M 32 x 1.5 and in a slightly tapered smooth bodied sensor, 32 mm in diameter.

45 Years of RECHNER-Sensors

(06.08.2010)

RECHNER is just celebrating 45 years of business.

We like to take the opportunity to thank all our valued partners and friends. Many of you have successfully worked with us for some decades. We had great fun in success together in the capacitive world and there is a lot more fun and business to come in the near future!

We are looking forward for many more boosting years with your appreciated partnership.

Capacitive Sensors Available with Remote Adjustment

(10.05.2010)

It is often a real challenge for the user to achieve good level control in large silos or in some containers with difficult access. A direct adjustment of a sensor in the container is often not possible. Reasons can be that the access is dangerous for human beings or the container is too high or possibly space is extremely limited.

For these situations RECHNER-Sensors now offer capacitive sensors with remote adjustment. The adjustment is made using an additional wire on the connection cable. Rechner’s well-tried and practically self-explanatory EasyTeach technology has been adopted for this series. The sensors current measuring state is reflected at the output for an easy and optimum integration into the users SPS.

This teach function is available for both the High Performance and the NormLine Series. At present models are available in body sizes M30 × 1,5, M32 × 1,5 and 26 mm in diameter. Ask for ETW (ETW = EasyTeach by wire) for more convenience at your application.

N-132... New generation ATEX / FM approved barriers and transformers.

(17.03.2010)

With our new series N-132.. a new generation of Namur compatible amplifiers and transformers is launched. They come in single as well as double channel versions and supply either Namur sensors or mechanical sensors suitable for categories 1G ( zone 0 ) as well as 1D ( zone 20 ). Especially suitable for use of our series IAS-30 and KAS-40 as well as the new RCS series.

• slim line housing requiring 20% less mounting space than previous version
  
• dual 120 /230 V AC version
  
• extended ambient temperature range up to 70°C
  
• DC models for installation in ATEX category 3G available
  
• DC models with output for Line-Fault detection
  
• PAC bus use (DC models) and DIN rail mounting
  
• PAC bus will connect the DC-Power by mounting on the DIN rail

New generation available from now on will automatically replace old N-131 units.

Capacitive AC/DC Sensor with programmable NO or NC function

(27.01.2010)

Rechner Sensors have introduced a new capacitive proximity sensor with universal supply voltage range from 20...250 V AD/DC and a plug connector, in which the output function, normally open (NO) or normally closed (NC), is programmable. This simplifies storekeeping.

The sensors are available with the option of a straight or angled connector. Additional advantages result from the integrated microcontroller technology, for example a fixed time delay. This can be both on and off delay.

The sensor is designed for non-flush mounting. The body is in standard size M30 × 1.5. A universal capacitive level sensor providing interesting options for the user.

Capacitive Sensors With Relay Output - Series 95 – now with PBT body

(13.01.2010)

RECHNER’s series 95 capacitive sensors with relay output are incredibly versatile level probes. The universal supply voltage range from 20...250 V AC/DC, the simple mounting and installation and the potential-free relay output are all key benefits for the user. Further advantages are provided by the integrated intelligent micro controller technology. This allows various options, like adjustable time relay (from 1 sec. up to 10 min.) and changeable on- or off-delay. RECHNER?s High Performance Technology is also incorporated into these sensors guaranteeing the best in quality and reliability. Moreover the sensors have a low power consumption of only 2 mA.
The sensors are available with body sizes of M 30 × 1.5, M 32 × 1.5 and in a slightly tapered smooth bodied sensor 32 mm in diameter.

The sensors are now available in PBT housings as well as the existing POM units. The PBT bodies also have similar excellent mechanical characteristics. The material used is flame-retardant and corresponds to the UL/CSA directives. The price benefit for PBT over the POM body is a welcome additional benefit for the user.

A PG36 pressure type connection is available as an accessory. The sensors can be connected to PLC?s or the user can connect directly for control purposes to a max. 1 A.

Inductive sensors for 150°C and 180°C ambient temperature

(16.07.2009)

The new inductive sensors from RECHNER can be used for detection of metal objects in ambient temperatures of 150°C and 180°C. The electronics are self contained within the housing, like all conventional inductive sensors. This means with these sensors a separate evaluation unit is no longer required.

The sensors are available in the body sizes M 12 × 1, M 18 × 1 and M 30 × 1,5. Power supply 10?35 V DC. The sensors are available for both for flush mounting and for non-flush mounting in metal.

Capacitive sensors for detection of leaks in ATEX zones 1 and 2 or zone 20

(02.06.2009)

Leaks can be detected early and reliably using the capacitive sensors LEAK-500-... and KAS-40-LEAK-PTFE-N from RECHNER. The LEAK sensor can be mounted directly on to the base of a basin or trip tray with or without the attached holder. The measuring field of the sensor is directed to the bottom; however the base will not be detected whether it is made of plastic, glass or even metal. In the case of a leakage the sensor will detect the dripping or running liquid immediately it approaches the active area and gives a switching signal for alarm and action.

Housing and cable of the LEAK sensors are made of PTFE. This makes them ideal for all industries, including the semiconductor and chemical industry. The available variants are for 10?35 V DC supply voltage with NPN- or PNP-Transistor output or NAMUR sensors with ATEX certificate for use in areas with danger of explosion of zones 1/2 or zone 20.
The dimensions are small with 37.5 mm in diameter and 18.8 mm in height. The gap between the sensor and the bottom is just 2.8 mm. The measuring area where the liquid is detected is within this gap at the feet of the sensor.

Capacitive LEAK sensors are a great help to prevent problems caused by liquid leaks of a critical nature.

Capacitive Sensors – EasyTeach – With Clear Text Display!

(20.10.2008)

The 26 series from RECHNER was originally designed to cope with the problems of very adhesive products. It turns out that these sensors have excellent characteristics for general use in level control. Typically they overcome the problems caused by products sticking to the sensor and the need for continual re-adjustment.

The semiround sensor tip is a striking feature of this series. The electronics are based on RECHNER’s High Performance Technology and guarantees high quality and reliability. The sensors are available with various process connections, such as Triclamp, G1“ and M22.

Now this series has been extended with the new Easy Teach range. This new range has housing lengths that can reach deeper into the containers. These sensors have a G1½“ process connection. Thanks to the EasyTeach function the adjustment is made with just one push button. The clear text display assist with the adjustment. These capacitive level sensors are available up to 2000 mm in length.

Like the rest of the 26 family they are suitable for use in both wet and dry areas. They are ideal for use in industries such as the chemical industry or food processing

Versatile – Capacitive Sensors With Relay Output

(25.09.2008)

RECHNER?s series 95 capacitive sensors with relay output are incredibly versatile level probes. The universal supply voltage range from 20?250 V AC/DC, the simple mounting and installation and the potential-free relay output are all key benefits for the user. Further advantages are provided by the integrated intelligent micro controller technology. This allows various options, like adjustable time relay (from 1 sec. up to 10 min.) and changeable on- or off-delay.
RECHNER?s High Performance Technology is also incorporated into these sensors guaranteeing the best in quality and reliability. Moreover the sensors have a low power consumption of only 2 mA. The sensors are available with body sizes of M 30 × 1.5, M 32 × 1.5 and in a slightly tapered smooth bodied sensor 32 mm in diameter. A PG36 pressure type connection is available as an accessory. The sensors can be connected to PLC?s or the user can connect directly for control purposes to a max. 1 A.

Optimum Control of Pellets with Rechner Sensors.

(30.05.2008)

RECHNER Capacitive sensors can make a major contribution to the trouble free functioning of your pellet heating system. RECHNER sensors control both the supply of the pellets to the burner and the level of the storage unit.

Different models are available in M18, M30 and M32 housings with metal or plastic bodies. Change of the material properties of the pellets, are no problem for RECHNER sensors. Once correctly adjusted, no readjusting of the switching distance is required. On request we can supply the sensors with a pre-adjusted switching distance: ?READY TO GO?. That means for you, unpack, install, connect = ready for use.

Capacitive Mini Sensors From Rechner - The Originals

(18.03.2008)

RECHNER has had a history of success with capacitive Mini’s going back to1983 with disk-shaped Sensors for wafer detection. No sooner had this project finished and our clients set us new challenges, and within a few months Rechner had an extensive product family of capacitive mini sensors. Time has not stood still in this product area and as a result of constant advancement and technological adjustments our customers now have at their disposal a perfected sensor family.

The disc shaped capacitive mini sensors are available with diameters from 10 mm with a thickness of just 4 mm up to 30 mm in diameter. The cylindrical versions are available from 3 mm diameter. There are variants for use in high temperature application up to +125°C ambient temperature. This series also includes PTFE or PEEK body versions which are ideally suited for use in the Chemical, Pharmaceutical or Food Industry.

Capacitive Sensors now only 50 mm in length

(11.02.2008)

The conventional capacitive sensors are too large for your Application? No problem for RECHNER-Sensors. The specialist for capacitive sensors continue to develop and manufacture a wide range of sensors with small dimensions. So for instance capacitive sensors in cylindrical housings with M30 × 1,5 or M32 × 1.5 thread are now available with a body only 50 mm in length. This series also includes PTFE body versions which are ideally suited for use in the Chemical, Pharmaceutical or Food Industry.

Sensors from the Rechner High performance range, which covers most of Rechner’s transistor output devices, have a higher technical specification than other sensors in the market. These new sensors have a shorter body but still meet in full the exacting requirements of the high performance range.

Data sheet KA0621
Data sheet KA0622
Data sheet KA0644
Data sheet KA0645
Data sheet KA0646

New ultramodern automatic assembling machines

(15.01.2008)

Last December two new ultramodern automatic assembling machines were put in service in our SMD department. This took place without any problems. Thanks to the 8-head technology of these machines the overall assembling capacity is now more than double. The assembling accuracy is also considerably increased. This is of importance with processing of very small component parts.

As a result a further step has been taken to improve the service to our clients. This being to continually guarantee the expected excellent quality and fast availability of the products by means of increasing and optimising production capacity ? Made in Germany!

MRK Systeme GmbH wins the German Sensor Application Award 2007.

(10.12.2007)

- Man and Robots can now work together!

The presentation of the prize was on 28th November at the SPS/SPI/Drives Fair in Nurnberg and MRK Systeme GMBH were the winners of the German Sensor Application Award

We congratulate MRK Systeme GmbH on this award. We are very happy and proud, that our capacitive sensors are making an important contribution to the functionality of this innovative product.

The KUKA Robot KR 3 SI (Safe Interaction) from MRK Systeme GmbH allows the robot to operate with direct human contact.
The safety system is based on four function mechanisms:

• Uniform reduction of the Robots kinetic energy by means of a damping protective cover.

• To operate a stop (Category 0; DIN 60204) by means of tactile switching elements.

• Reductions of the Robot speed using capacitive proximity sensors from RECHNER.

• Tool safeguarding by means of a removable connection flange (operation of a stop according to category 0).

Solving the specific challenging applications of our clients is our speciality.

Together we are always a step ahead.

Capacitive sensors of series 26

(09.05.2007)

The new brochure about capacitive sensors with semicircular active area of series 26 is now online.

RECHNER has new laser marking system

(29.03.2007)

Seven years ago we bought our first laser marking machine and started to mark our sensors directly on the housing. Article numbers, type codes, CE-marking, and individual identification code are engraved directly on the housing with the laser. There is no problem marking the different kind of plastics like PA or PPO and metals such as brass, stainless steel or even titanium. The old and ugly labels, that quite often came unstuck after a period of time, or simply became unreadable, now belong to the past. This has been a milestone in our quality control system, especially regarding the trace ability of products. The positive feedback of our customers strengthened our determination for higher quality. Due to the greatly increased demands from production during the last year, we almost reached the limit of our ability to keep pace with the marking process. To avoid a potential bottleneck in the near future we have now purchased a second even more sophisticated laser marking system. It has been implemented into our production process in the last month and since then both lasers work nicely in parallel. The new features allow us total 360° markings as well as implementing customized logos. A further step to more quality and service for all our customers who wish to have their own company name and logo or their own part number on our sensors.

RECHNER – World leader in capacitive sensor technology and quality.

Visa Card / Master Card

(31.01.2007)

RECHNER-Sensors Germany accept now payment by VISA Card or Master Card.

Accredited testing laboratory "RECHNER Lampertheim" according to ISO 17025

(09.08.2006)

Within the last few days our accredited testing laboratory has once again been audited, with success. The first Audit was exactly 12 years ago. Since then our qualified and independent testing personnel have ensured that products from RECHNER-Sensors are a by-word for high quality.

Since being one of the very first accredited testing laboratories, we are still worldwide one of the few such testing establishments for proximity sensors. We are proud that we continue to make a further important contribution for the international leading position of our products.

For all our products ?made in Germany? also means, ?tested in Germany?.

This means for our clients the certainty and guarantee that all our products have to pass a complete final inspection of all functions before delivery. Not batch tests only ? but 100 % tested!

RECHNER SENSORS ? Leader in capacitive sensor technology

RoHS conformity

(07.06.2006)

We are pleased to inform you that we have already changed our production process to conform to the RoHS directive.

From November 2005 we have only ordered components (circuit boards, component parts, etc) which conform to the directives RoHS and WEEE.

In March 2006 our soldering process was changed to ?lead-free?.

Further details can be found in our customer information ?Care of the Environment?.

Level sensors with connection head

(30.01.2006)

Our level probes are now available with connection head to include all electronics. Heads available in aluminium or stainless steel with inch thread, NPT or Triclamp mounting connection.

Capacitive Sensors KXS

(30.01.2006)

The capacitive proximity sensors that make up the KAS-40?, KAS-70?, KAS-80?, KAS-90, KAS-1000 and KAS-2000 series . are already established as powerful leaders in today.s market. They are well accepted as sensors that are reliable, and there are a large number of versions to suit many applications in the processing industry and throughout mechanical engineering. Nowadays they are indispensable. Important parameters for the user are the achievable switching distance and the size of the sensor. Larger switching distances require larger sensors. It is here, that the new KXS/KXA-Systems show their strength. Although one achieves essentially larger switching distances with these capacitive systems, their size is actually smaller. The sensors of the KXS/KXA-Series are based on a different measuring principle, the three-electrode-principle.

Advantages:

- Extreme large sensing distance, up to 10-times the norm

- miniature sensors from M5

- Measurement of smallest changes in capacity

- suitable for high-temperature areas up to +250°C (ceramics +800°C)

- up to three adjustable switching points in one sensor (Duplex and Triplex operation)

The Top-Team In The Ex-Area

(30.01.2006)

RECHNER-Sensors have a wide reaching program of Ex- protected sensors. The product family comprise capacitive and inductive proximity sensors in cylindrical size from 6.5 to 40 mm in diameter. NAMUR sensors and proximity sensors with NPN or PNP transistor output rank among the standard. With the Ex- protected isolation amplifiers the product range is complete. The ATEX-certified units are available for areas with danger of gas explosion (Zone 0,1 and 2) and for areas with danger of dust explosion (Zone 20, 21 and 22). Being an ATEX certified firm, RECHNER can also offer sensors with a manufacturers declaration for both of these explosion danger areas.

Capacitive Sensor - an all round performance ensures everything runs well!

(30.01.2006)

RECHNER’s capacitive filling level detection sensor is especially designed for the detection of very adhesive products. The non-stick characteristic of the PTFE housing is enhanced with the round tip of the sensor. These sensors are often used in the chemical industry as well as in the food industry. Sensing only takes place at the tip of the sensor, which also ensures that there is no problem from unwanted switching caused by product build-up on the wall of the container. Permitted ambient temperature max. +100°C.

High Performance – the standard for RECHNER’s capacitive proximity sensors

(30.01.2006)

Rechner has proved once again, that supreme achievement is possible, when the customer‘s demands are merged with their innovation and longstanding experience. High Performance, just two words that accurately describe the new generation of standard sensors: Capacitive sensors with 3 times higher sensing distance than the norm, high temperature stability up to 100°C and excellent EMC-characteristics. The sensing distance is medium optimised, so that with just one adjustment it is possible to detect a variety of products. The series comprise capacitive sensors in cylindrical size from M 8 × 1 mm to 64 mm in diameter, with both flush and non-flush mountable models. Also ranging among the standard are chemical resistant and food-grade sensors in PTFE or PTFE/stainless steel housings.

50 mm Sensing Distance !

(30.01.2006)

Record sensing distance with the new High Performance Proximity Sensors from RECHNER. The M32 threaded sensor with 5 cm active area allows a flush mounting sensing distance of more then 50 mm. This corresponds to 5 times the Sn of a standard M30 sensor. The PEEK covered active area offers excellent protection, since this material is considered to be oil resistant, resistant to nearly all chemicals, physiologically harmless and it has very good mechanical characteristics, like abrasion resistance. This 4-wire DC sensor is available with antivalent PNP switching output.