The Model SR-500 ( for single body of water ) is a Safety Vacuum Release System (SVRS) which works by monitoring the vacuum on the suction side of the pool or spa pump. When a blockage occurs in the main drain or skimmer a sudden rise in vacuum will cause the SR-500 to shut down pump operation 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 as required by the International Building Codes (IBC) and the International Residential Codes (IRC)
Meets all current codes and standards for SVRSs on new and existing pools and spas
Can act as pool controller with programmable timer, or as stand alone SVRS working in conjunction with existing pool controller
Newest state-of-art NEC microprocessor technology-- guaranteed reliability and performance
Vacuum monitored 128 times per second -- rapid response and accurate readings
Power monitored 50/60 times per second -- insures continuous power detection
Integrates with existing timer box - ( for easy retrofit )
Low vacuum sensing - ( prevents cavitations or running the pump dry, eliminating costly equipment failure )
30 minute maintenance override - ( for pool or spa service )
Accessible extra dry contact – auxiliary equipment can be add ready added
Power back-up – insures settings and reading will be saved ( 30 minute rapid recharge )
Display error readout - ( prevents guessing during troubleshooting )
Works on all size pumps
Easy and trouble free installation - ( no pipes to cut or glue )
Turns off pump in milliseconds upon detecting sudden vacuum change
Has a built in internal alarm which is very loud
Multiple audible alarm capabilities – allows for quicker alert to harmful situations
Provides a layer of protection, reducing entrapment risk
 

Options Available: ( special order )

Emergency Stop Button
Remote indoor or outdoor audible alarm and flashing light
 

Safety Vacuum Release System for single body of water