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3M
™
Advanced Systems Tester 900AST Series
2
Setup for Use
Battery Requirement
The battery holder holds six “AA” standard alkaline
batteries and should be installed prior to using the
unit. Please see the 900AST tester manual or DVD
for battery installation instructions. Always initiate a
self-calibration after installing new batteries.
The battery symbol in the upper right-hand corner
of the display gives an indication of the approximate
battery capacity. Each bar represents one-quarter of
the full capacity.
Front Panel
Test Leads
The test lead icons are shown on each of the
measurement screens and appear after a function or
test is selected. Each lead points to a color dot on
the front label that corresponds to the actual test lead
and test jack to be used. This on screen display is the
connection diagram for the selected test. The active
control keys are displayed on the bottom of the
screen and act as a guide through setup and testing.
For TDR applications using the special coaxial TDR
test lead(s), the test lead icons indicate which test
jacks (also denoted by colors) to use.
Operational Help
For operational information, refer to the 900AST
tester manual or “Help”
control key on the
900AST tester keypad. For technical service,
warranty or repair questions, call 800 426 8688 (US
and Canada) or contact your local 3M representative.