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fl <br />u <br />fl <br />u <br />CI <br />D <br />n <br />u <br />u <br />11 <br />7 <br />11 <br />[I <br />n <br />n <br />I <br />D <br />11 <br />9 <br />The sensor operating principle uses a series of pressure switches to control the pump and trigger and alarm <br />with pump shutdown. The approximate air or vapor leak rate which would produce an alarm is <br />specified as greater than 85±15 liters per hour for all systems. Leaks larger than this should <br />produce an alarm. <br />Temperature Effects <br />This system was tested over a range of temperature conditions of -25 deg C to 70 deg C. The <br />system (X) did or ( ) did not pass all of these tests. <br />Effects of a Catastrophic Leak <br />A catastrophic leak will cause an immediate shut down of the pump. (X) yes () no <br />Limitations on the Results <br />The performance estimates above are only valid when: <br />• The vacuum source must maintain a flow rate of 85±15 liters per hour during monitoring. <br />• The method has not been substantially changed. <br />• The vendor's instructions for using the method are followed. <br />If this method is affected by other sources of interference. List these interferences below and <br />give the ranges of conditions under which the evaluation was done. (Check None if not <br />applicable.) <br />(X) None known <br />Manifolded tanks require that the interstice of the tanks be manifolded to a common vacuum pump. <br />> Safety disclaimer: This test procedure only addresses the issue of the method's <br />ability to detect leaks. It does not test the equipment for safety hazards. <br />MSR 09-04-A 9 <br />