The Model SR-500 is a Safety Vacuum Release System (SVRS) which works by monitoring the vacuum on the influent side of the pool or spa pump. When a blockage occurs in the main drain or skimmers, a sudden rise in vacuum will cause the SR-500 to shut down pump operations and activate an audible alarm. The pump will remain off with the alarm sounding until manually reset.

Features and Benefits

• Complies with ASME/ANSI 112.19.17
  • Newest state-of-art NEC microprocessor -- guaranteed reliability and performance
  • Vacuum monitored 128 times per second -- rapid response and accurate readings
  • Powered monitored 50/60 times per second -- insures continuous power detection
  • Power back-up -- insures settings and reading will be saved (30 minute rapid recharge)
  • All components are high voltage rated -- provides improved reliability & longer life
  • Easily accessible extra dry contracts -- auxiliary equipment can be readily added
• High temperature LDC -- insures accurate and reliable readouts
• Back-lit LCD -- more easily read display
• Multiple audible alarm capabilities -- allows for quicker alerts to harmful situations
• Conformal coated circuit board -- provides corrosion resistance and longer life
• Zinc coated metal chassis -- provides corrosion resistance and longer life
• Membrane Switch environmentally sealed -- provides corrosion resistance and longer life
• EMA 3R enclosures -- provides corrosion resistance and longer life
• Compatible with freeze protection thermostats
• Works on all size pumps
• Trouble free -- quick installations