beautypg.com

Controls and indicators – Welch Allyn AM282 Audiometer - User Manual User Manual

Page 11

background image

Directions for Use

Introduction

7

Controls and indicators

F1

Range extension pushbutton allows you to increase the stimulus intensity 10 dB above the
standard maximum HL at any frequency. When in use, a “+” appears on the LCD.

F2

Liquid Crystal Display (LCD).

F3

Selects steady stimulus tone type. The symbol

is shown in the upper right hand

corner of the display when selected.

F4

Selects pulsed stimulus tone type. The symbol

is shown in the upper right hand corner

of the display when selected.

F5

Selects frequency modulated stimulus tone type. FM is shown in the upper right hand corner
of the display when selected.

F6

Selects the calibration file for external headset transducers. When the

button is pressed,

the display will flash. Press the

button again to engage the external headset transducer.

The symbol

is shown on the right side of the display when selected.

F7

Selects internal earphone calibration file for transducers. When the button

is pressed,

the display will flash. Press the

button again to engage the internal earphone

transducers. The symbol

is shown on the right side of the display when selected.

F8

Control for setting the stimulus frequency. Frequency is indicated in the bottom center of the
display.

F9

Select to present the stimulus to the Left ear. An “L” will appear in the lower right side of the
display to indicate the stimulus is being routed to the left ear.

F10

Present bar for stimulus presentation. The symbol

appears on the left side of the

display when the stimulus is being presented.

F11

Select to present the stimulus to the Right ear. An “R” will appear in the lower left side of the
display to indicate the stimulus is being routed to the right ear.

F12

Hearing Level knob for setting the stimulus intensity level. Level is indicated on the center top
of the display.

Note

The

symbol is located on the rear panel of the AM282 Audiometer and

denotes a Type B applied part.