Limit values Specifications for the leak detector

The maximum permissibie pressure inside the test specimen (also the maximum permissible inlet pressure). This pressure p, gj( will be about 10 for LDs with classical PFPs and about 2 to 10 mbar for LDs with compound PFPs. The product of this maximum permissible operating pressure and the pumping speed S of the pump system at the detector s test connection is the maximum permissibie throughput  

This equation shows that it is by no means advantageous to attain high sensitivity by Ihrottiing down the pumping speed. The maximum permissible throughput would otherw/ise be too small. The unit is not functional when - 

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