Special Messages; Cal; Exx; Section 4 - Calibration - Welch Allyn Grason-Stadler GSI 17 Series Service Manual

3.4 SPECIAL MESSAGES

The GSI 17 is a
performs a self check each time the instrument is turned on
self check does not occur when the instrument is "awakened"
Certain messages will be displayed to the
sleep mode).
the front panel LCD if any error in the instrument
on
is detected. These messages are described below.

3.4.1 CAL

When a transducer or
calibration error
"CAL" will be displayed to the operator.
function at
this
invalid results
displayed as long as the "problem" transducer and frequency
selected. If the calibration error is an
changing either
earphone or 3000 Hz) will restore normal instrument function.
As is the case with any instrument
service technician should be contacted immediately.
make note of the combination of transducer and
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.
not permit the instrument to operate.
will remain on
instrument will
appear on the LCD, take the following steps:
a. Power down, then power up again.
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.
Contact your certified service representative and give
C .
them the specific numbers you have recorded.
microprocessor-controlled
frequency is
(i.e. right earphone at 2000
frequency with this transducer, so
can be
recorded.
the frequency or
The GSI 17 will enter a "lockout" mode which will
the display
shut itself down completely.
selected
The audiometer will not
The word
isolated
the transducer
malfunction, a
The specific
for several seconds,
This error could be
instrument
which
(the
from
operator
operation
which
has a
the word
Hz),
that no
"CAL" will be
are
situation,
(i.e. left
certified
Remember to
frequency which
error code
then
the
Should an
Exx