TA I
NSTRUMENTS
TGA 2050
Maintenance & Diagnostics
5–14
TGA 2050
Test Functions
The TGA 2050 has three levels of test and
diagnostic functions:
• The confidence test that is run every time
the instrument is started.
• Cycling test functions that continuously test
specific.
• A manufacturing verifier test mode that
coordinates and logs the results of a
sequence of confidence test and drift runs.
These test functions are always present in the
instrument. They are designed to aid manufac-
turing and service in checking and repairing the
instrument.
The Confidence Test
The TGA 2050 confidence test is run each time
the instrument is turned on or reset. The confi-
dence test checks most of the computer and
interface components in the system.
A standard 2050 instrument takes about 16
seconds to run the confidence test. During the
test the yellow ready light will flash several
times, indicating that the test is proceeding
normally. At the end of the test the ready light
will turn on and the instrument can be config-
ured online.
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