Program flow chart – Welch Allyn REF 29400 User Manual

Page 25

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Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E

24


The UP and DOWN arrow buttons move through the list of program choices and data files. Press
the UP or DOWN arrow keys until the desired program function appears in the LCD. Then press
the DX SELECT button.

Program Flow Chart

In this section the Program Flow Chart is broken down into four sections: Power ON, Performing
a Test, Viewing Test Details, and Viewing Previously Collected Data.

In the flow charts, the boxes represent the display messages seen on the LCD of the screener.
The lines in between boxes show the software flow direction as indicated by the arrow. The text
beside the flow arrows indicates how the step is initiated. For example, the text may describe a
button press or a condition that initiates an automatic progression to the next step.

The paragraphs below the flow chart provide information that is not covered in the flow chart
format.


Power ON































The operation of the ON button is the same for the following flow charts. That is, it will always
return the user to the initial Welch Allyn message on the LCD. It will not be depicted in the
following charts.

Welch Allyn

VER #.##

ON

Welch Allyn DPOAE

VER ##.##.##

2 sec delay

LOADING #.##.##

PLEASE WAIT . . .

DX SELECT

PERFORM DPOAE

Log # in logbook

ON

2 sec delay

NOTE: At this stage, the
screener is ready to load software
from the computer or from
internal memory.

LOADING DP

ON

DATE: xx/xx/xx

TIME: xx:xx:xx

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