Mechatronic pressure measurement OEM compact pressure switch Miniature format Model PSM04 WIKA data sheet PV 34.84 Applications Heating technology Pneumatics Media: Compressed air, neutral fluids Special features Reliable and cost-effective Compact design in miniature format 6 10 switching cycles OEM compact pressure switch, miniature format, model PSM04 Description Model PSM04 screw-in pressure switches in a diaphragm design open or close a circuit, depending on whether the pressure is dropping or rising. The easy and convenient setting of the switch point is enabled via an adjustment screw. Optionally, WIKA offers customers the factory setting of the switch point. The small installation size makes this pressure switch especially interesting for customers for whom small space requirements play an important role in their design. This advantage enables the PSM04 to prevail, particularly when costs are also important. Model PSM04 pressure switches find an application where- ver compressed air and neutral fluids are used. Thus the pressure switches are mainly used in the heating technology and pneumatics industries, but also in general industrial applications. WIKA data sheet PV 34.84 02/2014 Page 1 of 3 Data sheets showing similar products: Miniature format, brass design model PSM05 see data sheet PV 34.85 Basic version model PSM06 see data sheet PV 34.86Switch contacts Standard version Slow-action switch, silver-plated contacts Case Switching function Steel, galvanised Selectable: Normally open, normally closed Reproducibility Switching power 5 % of full scale value Switching voltage: DC / AC 42 V Switching current: 2 A Permissible temperature Ambient: -20 +75 C Electrical connection Medium: -20 +75 C Blade terminal 2 x 6.3 x 0.8 Process connection Switching frequency Polyamide 6 max. 200/min G 1/8 Service life Measuring element 6 > 1 x 10 switching cycles Diaphragm with compression spring Ingress protection Sealing IP 00 Diaphragm: NBR Switch configuration NO contact NC contact Setting ranges, max. working pressure, measuring principle, hysteresis Setting ranges Max. working Measuring Hysteresis pressure principle in bar in bar 0.3 ... 2 2 Diaphragm < 10 % 1 ... 8 8 Diaphragm < 10 % Options Factory setting of the switch point Gold contacts Page 2 of 3 WIKA data sheet PV 34.84 02/2014