User’s Guide www.omega.com e-mail: info@omega.
OMEGAnet® On-Line Service www.omega.com Internet e-mail info@omega.com Servicing North America: USA: ISO 9001 Certified Canada: One Omega Drive, P.O. Box 4047 Stamford, CT 06907-0047 TEL: (203) 359-1660 e-mail: info@omega.com 976 Bergar Laval (Quebec) H7L 5A1 TEL: (514) 856-6928 e-mail: info@omega.
E L E C T R O N I C P R E S S U R E S W I T C H F O R P N E U M AT I C A P P L I C AT I O N S PSW31 Series APPLICATION Ideal for Control of Filtered Compressed Air, Lubricated or Non-Lubricated FEATURES Real-Time LED Status Display of Pressure Adjustable Hysteresis Off-Line Calibration Fast, Accurate Response Extensive Service Life SPECIFICATIONS .43 (11) Set Point Shifts 0.4% of FS/10°C Set Point Shifts 0.
E L E C T R O N I C P R E S S U R E S W I T C H F O R P N E U M AT I C A P P L I C AT I O N S ELECTRICAL PARAMETERS Electrical connection Power supply (polarity safe) Permissible residual ripple Current consumption DIN 43650 Table A 18 to 32V DC 10% (within 18 to 32V) <50 mA (plus load current) DIN 43650 1 p = MicroController +24V 3 Uout Imax = 1A E2PROM (SP,RP) Load 0V 2 I PE SP RP SWITCHING OUTPUT Switching mode Open collector PNP switched to supply (suited for inductive load) Supply voltage
I N S T R U ADJUSTING THE SWITCHING POINTS (SP) AND RESET POINTS (RP) a) Adjusting the switching point. Case 1 or Case 2 Q C T I O N supply is switched on. Release this button again after the power supply has been switched on. The display will then show the buffering time in milliseconds (e.g. 03) or seconds. The cursor buttons ▼, ▲ can be used to set the buffering time to 03, 06, 12, 24 or 50 ms or 0.1, 0.2 or 0.4 seconds. When this has been done, press SP to store the setting.
Switching Characteristic Graphs Signal “on” with rising pressure Setting SP* > RP** p Signal “on” with falling pressure Setting SP < RP Signal “off” with rising pressure Setting RP > SP p p RP p SP Signal “off” with falling pressure Setting RP < SP SP RP RP SP RP SP t t t t UA UA U U * SP = Switching point t t t t **RP = Reset point Explanation: When the switching point (SP) is adjusted HIGHER than the reset point (RP), then the switching output will be “normally off”.
WARRANTY/DISCLAIMER OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase. OMEGA’s Warranty adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping time. This ensures that OMEGA’s customers receive maximum coverage on each product. If the unit malfunctions, it must be returned to the factory for evaluation.
Where Do I Find Everything I Need for Process Measurement and Control? OMEGA...
