TA I
NSTRUMENTS
TGA 2950
Maintenance and Diagnostics
5–18
Power Failures
A power failure caused by a temporary drop in
line voltage results in one of two responses by
the TGA instrument:
If the drop is fairly large and of long duration
(20 milliseconds or more), the system will reset
and go into its power-up sequence when power
resumes.
If the drop is small or of short duration, the
system may halt, and you may see “Err F02” on
the display. This message means that the system
has detected a power failure and has shut down.
The instrument will not restart until it is reset.
To reset, press the Reset button on the TGA’s
back panel.
If “Err F02” appears at start-up and remains
even after you have tried to restart the instru-
ment, the detection circuitry itself is probably at
fault. Do not try to repair it yourself; call your
TA Instruments service representative.
The TGA is designed for a nominal line voltage
of 115 volts AC (+ 10%), 50 or 60 Hz. It should
not be operated outside this range. Low line
voltage may result in poor instrument operation;
high line voltage may damage the instrument.
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