PS-525 Documentation:
Specifications of the PS-525 pitot-static tester can be viewed here.
For a PDF version of the most current (Revision 2) PS-525 and PS-525A manual, click here.
To view or download Revision 1, click here.
To view or download Revision 0, click here. (For serial numbers: 60110, 60140, 62162, 71022, 71051, 72060)
ALT-621 and ASP-621 Documentation:
For the ALT-621 and ASP-621 Manual in PDF click here.