Beck GmbH Druckkontrolltechnik

Ferdinand-Steinbeis-Straße 4

71144 Steinenbronn

Baden-Württemberg

Germany

Phone: +49(0)7157.5287-0

Fax: +49(0)7157.5287-83

www.beck-sensors.com

Request contact / appointment

Hall 5 / 5-401

All Co-exhibitor (1)

Products of Beck GmbH Druckkontrolltechnik (5)

LOGO_Pressure Transmitter 981 for lowest pressures and liquid levels

LOGO_Differential Pressure Sensor 985 with a new IP65 enclosure

LOGO_Differential pressure switch 930.8x Climair®

LOGO_Self-zeroing differential pressure transmitters 984A and 985A

Exhibitor Profile

Products (5)

Floor Plan

Beck – over fifty years of specialisation in pressure monitoring
Walter Beck laid the foundation stone for today’s company with a water level indicator for domestic washing machines. Shortly afterwards, he developed a diaphragm pressure switch for monitoring water levels in the first fully-automatic washing machines. Following a phase of vigorous growth, Beck became one of the world’s leading manufacturers of pressure switches for large domestic appliances.

In the mid-1970s, Beck developed new markets, extending its customer base by adding numerous industrial application areas. In 1985, Beck presented a differential pressure switch for fan monitoring in gas heating appliances.

At the end of the 1980s, Beck established itself in the ventilation and air-conditioning market with an adjustable differential pressure switch for monitoring air filters and fans. In 2000, Beck rounded off its range of products for this meanwhile important market by adding a transmitter for differential pressure, which further enhanced the company’s market position worldwide.

At the same time, Beck still regards itself as a flexible niche provider of customer-specific pressure switches and pressure transmitters for original equipment suppliers in many different sectors.

This great diversification in sales markets can be regarded as an important factor in the company’s international market success.

Pressure Transmitter 981 for lowest pressures and liquid levels

Series 981 universal pressure transmitter for 0 - 100 mbar

Analogue pressure transmitters can be used in a variety of applications. The installation site, however, determines the maximum size and the selection of materials for the diaphragm and housing. It is therefore ideal when analogue pressure transmitters adapt individually to their applications. For this reason, we have expanded our broad range of compact pressure transmitters to include the analogue pressure transmitter 981 (pictured). You, the user, can take advantage of decades of experience with different materials and their use in a wide variety of media. Tried and tested diaphragms and a huge selection of screw, flange and plug connections made from a wide variety of different materials are available for a number of different applications. Measuring just 45 mm in diameter and 59 mm in height (including a 15 mm connecting piece), the sensor is very compact and can be easily integrated anywhere. Boasting a comprehensive range of mounting brackets, it can also be quickly installed in a customised installation position.

The pressure transmitter features a selectable measuring range between 0 and 100 mbar at a linearity of smaller than +-1% FSO BFSL @ 20°C. This measuring range is required by the customer and is individually preset upon delivery, allowing the pressure sensor to be installed immediately for the end customer’s application. The supply voltage of 24 VDC, at < 20 mA current consumption, as well as the output signal, (min. 10 kOhm load), is transmitted via a four-pin standard M12 flange plug (other plug variations available upon request). The response time is 500 ms. The sensor can provide either a three-wire output signal with 0-10 VDC or a two-wire output signal with 4 - 20 mA. Diaphragms made of different materials are available for monitoring the overpressure and underpressure of liquid, gaseous and aggressive media in the range of -20 to +85°C. In addition to NBR (Nitrile Butadiene Rubber), silicone for food applications and fluorocarbon rubbers (FKM) or ethylene propylene diene rubber (EPDM) for aggressive media are also available; other materials available on request. For pressure connections, users can choose between metals like brass (incl. nickel-plated) and stainless steel, and in the case of plastics between polyamide (PA), polyvinyl difluoride (PVDF), polyphenylene sulphide (PPS) and other types. Standard hose supports with 5, 6.5 or 10 mm diameters and threaded couplings in M10x1, G1/4 and G1/2 are available. Special versions as flange or specific threads are available upon request at any time.

Differential Pressure Sensor 985 with a new IP65 enclosure

Differential Pressure Sensor 985 with a new IP65 enclosure

Differential pressure sensors for air allow for very reliable assessments of the status of a ventilation or air conditioning system in buildings. For example, they check if the filters are dirty, or if the fresh air ventilation runs properly. Through changes in air pressure, information about changes of the system parameters can be detected reliably. For building automation, air conditioning and clean-room systems, users thus have constant access to the most important operational data. To accommodate the manifold versions and requirements even in the difficult ambient conditions of these systems, a new differential pressure sensor now offers an enclosure in protection class IP65, as well as up to eight switchable measuring ranges.

In practice, this feature significantly facilitates work, if a user simply wants to install, correctly wire up and set the parameters of a pressure sensor in a few easy steps. A differential pressure sensor with adequate access at the open lid for these moves forms a good basic prerequisite for this purpose. Another useful feature is that the open lid is not separated from the device, but simply folds open and down during the installation works. If it becomes apparent during installation that the pressure conditions are not as expected, a suitable measuring range can be selected simply and quickly via the rotary selector switch without having to procure and use an alternative device. For this purpose, the new sensor by Beck Druckkontrolltechnik offers eight pressure measuring ranges that can be selected from the rotary selector switch and also various output signals. To guarantee clean, linear response for each range, the developers equipped the 985Q sensor with tried and tested automatic zero-point calibration. Drift caused by ageing, temperature or system-related influences can thus be reliably and permanently compensated.

The new 985 pressure sensor model range can capture differential pressures from 25 Pa to 100 kPa in various measuring range combinations. The three-wire output signal is selected through a jumper as 0...10 V or 4...20 mA. Likewise by jumper, users can select between a linear or a square-rooted signal. The latter is useful for measuring volume flows, for example. With a supply voltage of 24 VAC/VDC, current consumption with an LED display is a maximum of 230 mA. The IP65 enclosure measures 81 mm x 83 mm at a height of 41 mm. Two tube ports of 4 mm and 6 mm diameter allow for the use of tubes with different thicknesses for connection to the pressure port. The cable gland, with a cap nut screw connection of 15 AF, makes it possible to insert cables or stranded wires of up to 1.5 mm² during on-site installation. The transmitters comply with EN 60770 and EN 61326, as well as RoHS according to 2011/65/EU.

Pressure switch 901 Prescal®

Differential pressure switch 930.8x Climair®

Self-zeroing differential pressure transmitters 984A and 985A

In many cases, no reliable conclusion on the condition of a system can be drawn from an existing pressure, neither in building automation, air conditioning and clean-room technology, in valve control nor in fan and blower monitoring. For this purpose, a differential pressure transmitter is the preferred sensor, for it allows some statements on the differential pressure as well as on the over- and underpressure in a system.

However, present differential pressure transmitters show one disadvantage: The zero point always needs to be reset manually again and again in order to compensate the drift caused by ageing, temperature, or by system-related influences. The new sensors of the 984A and 985A series are now self-zeroing. Thus, the sensor can do without maintenance at regular intervals – an advantage that is not inconsiderable – as the removal of false ceilings or contamination caused by the maintenance technician will be avoided. Particularly for systems that require utmost hygienic or clean-room conditions or even high security in connection with access limitations, this is a decisive advantage in terms of operating costs.

The new differential pressure transmitter is available in two different designs, the 984A with a round (85 x 58 mm in diameter) or the 985A with a rectangular IP65 enclosure (81 x 83 x 60 mm). Both models use a small valve for zeroing or offset compensation done automatically at regular intervals. Their operating voltage is 24 VAC/VDC. Their three-wire output signal can be configured either for 0...10 V or for 4...20 mA (20...500 Ohm burden) with the aid of a jumper. The maximum current consumption of the LED display model is below 150 mA, while the one without display even draws less than 60 mA. These sensors are suitable for use in air or non-aggressive gases. They can be switched over between two different pressure ranges. Depending on the respective model, the measuring range is between 0...25 Pa and 0...250 kPa. By means of jumpers, one can also set the response time on site, for example, to suppress the display of short pressure surges. Also with the aid of a jumper, the user can choose between a linear or a square-rooted signal. The latter is useful for measuring volume flows. The round sensor enclosures meet the requirements of protection category IP 54, while the rectangular ones are even in conformity with IP 65.