3.4 SPECIAL MESSAGES
The
GSI 17 is a
microprocessor-controlled
instrument
which
performs a self check each time the instrument is turned on
(the
self check does not occur when the instrument is "awakened"
from
sleep mode).
Certain messages will be displayed to the
operator
on
the front panel LCD if any error in the instrument
operation
is detected.
These messages are described below.
3.4.1 CAL
When a
transducer or frequency is
selected
which
has a
calibration
error
(i.e.
right earphone at 2000
Hz),
the
word
"CAL" will be displayed to the operator.
The audiometer will not
function at
this
frequency with this transducer, so
that no
invalid results
can be
recorded.
The word
"CAL"
will be
displayed as long as the "problem" transducer and frequency
are
selected.
If the calibration error is an
isolated
situation,
changing either
the
frequency or
the
transducer
(i.e. left
earphone or 3000 Hz) will restore normal instrument function.
As is
the
case with any instrument
malfunction, a
certified
service technician should be contacted immediately.
Remember to
make
note of the combination of transducer and
frequency which
resulted in the "CAL" message.
3.4.2 Exx
When an error code consisting of an
"E"
and a 2-digit number (xx,
= number) appears on the audiometer's display, a system error has
been detected.
The GSI 17 will enter a "lockout" mode which will
not
permit the instrument to operate.
The specific
error
code
will
remain on
the
display
for
several
seconds,
then
the
instrument will
shut
itself down completely.
Should an
Exx
appear on the LCD,take the following steps:
a.
Power down,
then power up again.
This error could be
only a temporary failure and may never appear again.
However,
should the Exx message
reappear,
proceed to
steps b. and c.
b.
Record the numbers that appear on the display.
C.
Contact your certified service representative and give
them the specific numbers you have recorded.
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