otometrics MADSEN Midimate 622, Руководство пользователя

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Plot : Pressing Softkey 4 starts audiogram printout (Pure Tone audiometry:
Air, BC, F.F.). Printout format is predefined during setup as a power-on
option. Note that the Ext. Range LED lights up during printout to indicate
“busy” status (versions 3.0 and 3.1, only) while the display shows:
Softkey 4
Printing . . .
View : The view function shows the thresholds stored for the selected ear and
transducer. Press L/R Shift to change ear, and use either the Frequency or
Hearing Level rotary knob to display all frequencies. To change transducer,
the relevant test setup must first be accessed.
L/R Shift
Air and bone conduction thresholds are always printed out on the same
audiogram (if there is one). Consequently, if separate audiograms are
required for air and bone, data must first be printed out and cleared before
starting an examination with the new transducer. AC & BC
Thresholds On
Same Printout
If an extra printout is required, repeat PLOT. PLOT
MIDIMATE 622 has sufficient memory to store Pure Tone Air, Bone and F.F.
data for both ears. As specified above, threshold data for both ears may be
erased via the Clr-All function, or by entering a new Patient I.D.
14.3 AVERAGE VALUES (MASKING)
If Average has been selected in Printer Setup, average and weighting values
will be included with your audiogram printout. If not, masking levels for each
frequency will be printed out, provided that the masking stimulus was
selected when the threshold was stored. Average Or
Masking
Masking values are displayed for both Air and Bone, but not with Free-Field
audiograms. Masked thresholds are represented on the audiograms with
ANSI symbols. Masking Values
When “Average” is selected, average values are calculated according to a
predefined weighting formula. Weighting values are also indicated on the
printout. Your own weighting formula may also be defined by means of
Madsen's configuration program MIDICON
&
(please contact your local
distributor).
Averaging
According To
Predefined
Weighting Formula
Default weighting values are linear averages calculated for the following
frequencies: 500, 1000, 2000 and 4000 Hz. Average values are calculated in
whole dB. Default Weighting
Values
ANSI speech-contribution weighting values are: 8% at 250 Hz, 14% at 500
Hz, 22% at 1000 Hz, 33% at 2000 Hz, and 23% at 4000 Hz. ANSI Weighting
Values
MIDIMATE 622 OPERATION MANUAL 14. Printout Function
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