Instructional Manual
Model SR–500 Rev.1.10
Model SR–500PS Rev. 2.00
(Safety Vacuum Release System)
Version 3.4
Stingl Products
PMB #325, 21010 Southbank Street Sterling, VA 20165
Tel (571) 434.6010; (888) 749-5433 Fax (571) 434-6013
www
.stingl-switch.com
U.S. Patent No. 6,059,536/6,342,841