Can sense the difference between two pressure levels as well as positive and negative pressure. Switching point: Pressure: 5 - 800 mbar Vacuum: 10 - 800 mbar Contact arrangement: Single pole, single throw, normally open or normally closed (SPST N.O. or N.C.) Upper port can be delivered with a different orientation than the lower port   This pressure switch is usually used to sense differences between two pressure levels, but can also be used to sense pressure or vacuum. The switch is optimised for use on circuitboards, therefore the electrical contacts are two 1.0 mm pins. Furthermore the upper part of the pressure switch can be delivered with a different orientation of the upper pressure port compared to the lower port. The low tolerance of ±5% in a wide range and low hysteresis are also features of this switch. The switching point can be changed by the user with a adjusting screw. The switch can be delivered as single pole single throw normally open or normally closed (SPST N.O. or N.C.) and with silver-alloy or gold-alloy contacts.

Pressure and differential switch with rotary control to set switching point Contact arrangement: Single pole double throw (SPDT) For air and other, non combustible, non agressive gases Multitude of models to cover 0.2 mbar - 50 mbar as a pressure switch or 0.1, 0.2, 1, 1.5, 2.5 mbar as a differential switch Model Switching point Differential PSW-A3-02 0,2 ~ 2 mbar 0,1 mbar PSW-A3-03 0,3 ~ 3 mbar 0,1 mbar PSW-A3-04 0,4 ~ 4 mbar 0,2 mbar PSW-A3-05 0,5 ~ 5 mbar 0,2 mbar PSW-A3-10 2 ~ 10 mbar 1 mbar PSW-A3-25 5 ~ 25 mbar 1,5 mbar PSW-A3-50 10 ~ 50 mbar 2,5 mbar   This pressure switch is outfitted with a rotary switch to facilitate changes to the switching point by the user. During normal operations the rotary switch is protected by a plastic cover, while allowing the set switch point to be read. Especially when multiple units are used in identical settings this reduces work load and saves time during setup. The included plastic cover of the pressure switch offers a protection level of IP54. Usually this switch is used to monitor the air flow in ventilation systems and heat exchangers. The device is available as a single pole double throw (SPDT) switch. Furtherfore the switch is also capable of sensing differences between two pressure levels. Assembly is possible with the holes in the feet.  

Can be used as a vacuum pressure switchSwitching point: Vacuum: 10 - 800 mbarElectrical design: Normally closed contact This variant of the well-known PSW-A6 is designed purely as a vacuum switch. Only one air connection is available for the vacuum side. Electrically, this pressure switch is the reverse version of the PSW-A6. As the contacts are on the other side, this switch is only available as an NC contact. The switch is optimised for use on printed circuit boards. Therefore, two 1.0 mm pins are available as electrical connections. The low tolerance of ±5% over a wide range and low hysteresis also characterise this model. The pressure switching point can be changed by the user via the adjusting screw. The mutual position of the screw in relation to the pins facilitates mounting on the PCB. The switch is available as a normally closed contact with gold or silver plated contacts. The complete pressure range cannot be covered by a single model; different springs are used for different ranges. Attention: Due to its small size, the model has only short spring travel. If in doubt, please enquire whether a specific pressure can be set with a specific model.A desired switching point is only possible from an order quantity of 50 pieces.

Our differential pressure sensor PT3 offers the possibility to monitor differential pressure at low cost with appealing technical data. The integrated display allows the employee to see the status of the system without having to read out the values for the control. Thanks to the backlighting, this is also possible in unlit areas. Since the display is integrated and pre-configured, there is no need for buttons to adjust the display. The adjustment options are available as switches on the circuit board (measurement range, unit, automatic zeroing).The sensor offers simultaneous outputs of 4-20mA as well as 0-10V, corresponding to full flexibility in the use of the signals. The accuracy of 1% is more than sufficient for the small measuring ranges (1 mbar, 10 mbar, 100 mbar). The measuring range can be centered (e.g. -50 ~ 50 mbar) or nulled (e.g. 0 ~ 100 mbar). Smaller measuring ranges to increase the accuracy can also be set (e.g. 75, 50, 25, 10 mbar for PT3-211). Details can be found in the data sheetIn general, this sensor offers a complete system for a wide range of applications at a low price.