Filter
Top Products
3M
™
Advanced Systems Tester 900AST Series
13
Short Circuit
A short circuit (or zero-Ohm resistance fault) will
show up as the lowest dip on the screen. You cannot
see events past a short circuit
Branch Circuit
The beginning of the branch circuit will look like
a small dip and the end of the branch will look like
an open (upward peak). Use the 900AST tester
Resistance function to measure the resistance of
the conductors. If the resistance is high, you may
suspect a branch circuit.
Resistance Faults on Coaxial Cable
A resistance fault will show as a dip on screen. The
lower the value of resistance (or the closer to a zero-
ohm short), the lower the dip. Use the resistance
function to check the coaxial cable for a resistive
fault. Use the Soak test function to determine if the
resistive fault is caused by moisture, corrosion or if
it is purely resistive.
Soak Test
Use the Soak Test function to continuously measure
the insulation resistance of a coaxial conductor inner
conductor to shield.