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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 O 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 /> — <br /> MSR 09-04-A 9 <br />