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3M
™
Advanced Systems Tester 900AST Series
14
Connect the 900AST test leads to the coaxial
conductor under test.
Press the
key to access the Soak test from the
Resistance screen.
Use the
key to save the active resistance to the
“Snap Shot” area.
Rising resistance in the active box typically indicates
moisture while falling resistance indicates corrosion.
Auto TDR for Coaxial Fault Detection
Use the Auto TDR function to have the 900AST
tester analyze and interpret a TDR coaxial cable
trace.
The Auto TDR function imports the coaxial
configuration selected in the TDR function using the
Setup key.