Bernstein designs and manufactures electromagnetic sensors for a broad range of applications.

Bernstein designs and manufactures electromagnetic sensors for a broad range of applications. These high-quality electromagnetic components are based on reed-contact and electronic (Hall, magnetoresistive) technologies. For industrial applications the particular advantage lies in the physics of the technology as there are a number of nonmagnetic metals that allow magnetic fields to penetrate unhindered.

That is why an electromagnetic sensor can be completely encapsulated in a pressure-resistant metal housing.

They can also be concealed in pipes or tubes and even behind metal surfaces (eg aluminium, brass, stainless).

Electronic solenoid switches equipped with either magnetoresistive or Hall elements are becoming increasingly popular in a range of applications.

They can be used to record positions, angles or rotary speeds.

The greatest inherent advantage is that they are insensitive to shock, impact, vibration and are absolutely resistant to wear.

High operating frequencies, long operating distances, broad operating temperature ranges and excellent repetition accuracy make these switches to an invaluable proc-ess component.

Irrespective of the magnetically sensitive element deployed, with this type of sensor a magnetic field generated by permanent and DC magnets always triggers the switching operation.

Reed contacts have always played an important role in electromagnet sensors.

They do not require an external power source and with the proper contact protection they can directly switch AC and DC current loads.

This type of contact has an extended operating temperature range from -30degC to +150degC.

With its new analysing electronics Bernstein has developed an innovative programmable control system for automation engineering applications.

With its new analysing electronics Bernstein has developed an innovative programmable control system for automation engineering applications. This new system pro-vides the user with a high degree of flexibility and a broad range of configuration op-tions. The PCS can be used with a menu controlled operating system for rotary speed que-ries, analogue signal evaluation, level or position analysis and operating point evaluation.

Standard sensors, NAMUR sensors, analogue sensors with 5/24 V current or voltage outputs can be used as sensor inputs.

The input signal parameters can be pro-grammed through the menu or the PCS can learn the required operating points/rotary speeds.

This feature allows the operator to set or program the system while in opera-tion so that tolerances can be reduced to a minimum.

The unit is equipped with five potential-free relay contacts to be used as outputs.

The analysing electronics can, if necessary, be divided among two functional units, so that the user has two separate configurations at his disposal.

This innovative feature provides a high degree of flexibility in configuration and installation.

Despite the broad range of functions, the PCS and the analysing electronics can be operated without previous experience.

Bernstein designs and manufactures a modular system of float switches which can be combined and configured to create a switch that ideally meets customer specifications.

Bernstein designs and manufactures a modular system of float switches which can be combined and configured to create a switch that ideally meets customer specifications. Float switches provide a reliable and cost-effective acquisition of level information in containers with stagnant or flowing liquids, such as water, oils, alkaline solutions and similar substances. A float switch comprises a connector element, a switching tube with 1 to 4 reed contacts and the float.

The float is equipped with an integrated ring magnet and rises and falls with the level of the fluid.

The magnetised contact reeds trigger a signal as soon as the float reaches the sensing range of the reed contact.

The range of Bernstein float switches ranges from miniature versions to heavy-duty and pressure-resistant versions.

The particular advantage of these float switches is, that the switching contact can directly - when furnished with the proper protection - switch loads, eg relays, signal lamps or even small pumps.

The STS4 safety switch in conjunction with the STS4/B actuating element functions according to the identification principle with a six-digit safety code that is only issued once.

As certified by the German Trade Association for Precision and Electrical Engineering, the STS4 safety switch in conjunction with the STS4/B actuating element functions according to the identification principle with a six-digit safety code that is only issued once. This non-contact system is extremely tamper-proof. The switch complies with Control Category 4 as defined by EN954-1, with its response range it is insensitive to mechanical tolerances and is therefore suited for monitoring safety areas in semi-automated industrial plants that are separated by safety walls and doors.

Should the application require a re-alignment of the sensor (active surface), the switch can be quickly and easily modified on site.

Omron Scientific Technologies has introduced the MA-S Series Magnetically Actuated Safety Interlock Switches and Actuators.

Omron Scientific Technologies has introduced the MA-S Series Magnetically Actuated safety interlock switches and Actuators. Both switch and actuator feature stainless steel housings for robust, corrosion-resistant operation in harsh environments. The NEMA 6 enclosure and large variety of available stainless steel-housed contact configurations satisfy any number of demanding application requirements.

The non-contact MA-S Series is designed to operate with guard door misalignment of up to 10mm while providing a minimum of one million actuations in temperatures up to 125degC (257degF).