OSCILLA USB100 Series Manual de usuario

ID: 993 / ver. 206

USB Calibration Software

Instructions for Use

Oscilla® USB100-series, USB300-series,

SM450-FF, SM930, SM950,

TSM400, TSM500, T830 and T840

ID: 993 / ver. 206

Specifications are subject to change without notice

2017-03-22

Table of contents

1Introduction..............................................................................................................................................3

2Installation of the Oscilladevice..........................................................................................................3

3Installation of the software.....................................................................................................................3

4General use of the calibration software................................................................................................3

5Use of the program with USB1xx, USB3xx and SM450FF ..................................................................4

5.1 Air conductor calibration .............................................................................................................................. 5

5.2 Bone conductor calibration .......................................................................................................................... 5

5.3 Free field calibration for SM450-FF ............................................................................................................. 6

6Use of the program with SM930 and SM950.........................................................................................7

6.1 Air conductor calibration .............................................................................................................................. 8

6.2 Bone conductor calibration .......................................................................................................................... 8

7Use of the program with TSM400, TSM500, T830 & T840....................................................................9

7.1 Calibration of probe tone............................................................................................................................ 10

7.2 Pressure calibration................................................................................................................................... 11

7.3 Contralateral calibration............................................................................................................................. 13

7.4 Time and date............................................................................................................................................. 14

7.5 Air conductor calibration (only TSM500)..................................................................................................... 15

7.6 Bone conductor calibration (only TSM500)................................................................................................ 15

8Hearing level offsets .............................................................................................................................16

9SPL or HL calibration mode .................................................................................................................18

9.1 HL mode.................................................................................................................................................... 19

9.2 SPL mode.................................................................................................................................................. 20

10 Calibration certificate............................................................................................................................21

11 Correction values for microphone and mastoid ................................................................................22

12 Calibration equipment information......................................................................................................23

13 Responsibility of the manufacturer.....................................................................................................24

14 Manufacturer..........................................................................................................................................24

ID: 993 / ver. 206

1 Introduction

All Oscilla tympanometer and –audiometer, which have a USB-connection can be calibrated through the

USB-connection.

Supported operating system:

Microsoft Windows Vista

Microsoft Windows 7

Microsoft Windows 8 Pro

Minimum requirements:

Pentium PC with 1 GB RAM

Available USB-port

1024 x 800 resolution with 32 bit color depth, 96dpi.

Microsoft .Net Framework 2.0

2 Installation of the Oscilladevice

Connect the Oscillainstruments by USB to the computer as shown to the right.

Windows automatically find and prepares your system to communicate with the Oscillainstrument. This

operation can take up to a minute.

When the new hardware is found and ready to use, continue installation as follows:

3 Installation of the software

Run the installation file from the computer, a USB flash stick or a CD drive and start the installation file.

Follow the installation windows on the screen, and press Finish on the last window.

The software is now installed on your computer and you are ready to calibrate Oscillainstruments.

4 General use of the calibration software

Before you beginning the use the calibration software, you must consider two important issues:

1. Which calibration standard (IEC / ANSI) you want the instrument to comply to.

2. In which mode/way you want to do the calibration mode (SPL or HL)

It is very important for the final calibration result, that you setup the calibration standard and the calibration

mode before you start using the software. If you are uncertain about the use of the software, you are

recommended to join a training course, contact Oscilla support for information about this.

To setup calibration standard, go to section 8. Hearing level offsets

SPL: Sound pressure level, HL: Hearing level

ID: 993 / ver. 206

5 Use of the program with USB1xx, USB3xx and SM450FF

Basic operation of the program

Start the program and connect the

audiometer to the USB port. The

program will start at 125 Hz, left

channel and 80 dB calibration level,

and the tone output will be turned on.

The available buttons that appears in

the program depends of which USB

audiometer is connected to the PC.

USB100, USB300, USB310: Air

USB300-B, USB300-BS,

USB350-B, USB350-BS: Air, Masking, Bone

USB350-SP: Air, Masking, Bone, Speech-masking

SM450-FF: Air, Masking, Bone, Speech-masking, Free field

SM450-FF 2 edition: Air, Masking, Bone, Speech-masking, Free field, Phone2 (Insert)

The program can be controlled by the mouse, dragging the sliders and clicking the buttons. However, to

make the calibration process more convenient, it can also be controlled by the keyboard.

Changes the frequency.

Move calibration sliders 1 step down, -0.1 dB

Move calibration sliders 1 step up, +0.1 dB

Move calibration sliders 10 step down, -1 dB

Move calibration sliders 10 step up +1 dB

Change function between air, left, right, and

bone

The program automatically

detects the audiometer type,

and the bone and masking

buttons in the top of the main

screen and will only be

present if the audiometer

supports bone and masking.

By using the keyboard, you

can keep your eyes on the

calibration equipment all the

time, instead of having to

look at the PC monitor to

follow the mouse pointer.

ID: 993 / ver. 206

Preparing calibration

Place the left telephone on the artificial

ear and ensure it fits tight. This can be

done by selecting 125 Hz, and then

position the telephone to get the

biggest readout on the calibration

equipment.

5.1 Air conductor calibration

By means of the 11 calibration sliders,

calibrate the sound pressure for the 11

frequencies to the level set in the

Calibration Level box. This is 80 dB by

default, but may be changed if desired

with the Down and Up buttons. If there

is masking available on the

audiometer, select it and calibrate the

masking to a level that is 3 dB higher

than the tone, for each frequency. Disable the band pass filter on the calibration equipment during masking

calibration. When finished the left channel place the right telephone on the artificial ear, select the right

channel, and repeat the tone and masking calibration. Before you start the calibration, be sure the

transducer in the dropdown menu e.g. air: TDH-39 is equal to the transducer in the headset of the

audiometer.

5.2 Bone conductor calibration

If there is a bone conductor available, it

should be calibrated too. Select bone and

calibrate the tone levels the same way as

the telephones, but to 60 dB at 125 Hz and

50 dB for the rest of the frequencies.

There is no masking calibration with the

bone conductor.

All calibration values and the date of

calibration are stored in the audiometer’s

memory immediately when the sliders are

moved, so nothing has to be done when

finished, just exit the calibration program. If

more than one audiometer is calibrated,

just unplug the one that is calibrated and

connect the next one. The program will

detect this and update the screen.

ID: 993 / ver. 206

5.3 Free field calibration for SM450-FF

The SM450-FF has a free field output, so you are able to connect active speakers or an amplifier to provide

passive speakers.

The calibration is needed to compensate for the speaker's and test room's nonlinear frequency response.

Before doing the free field calibration in the software, the active speakers or the amplifier gain/volume must

be on a sensible level. If it is the Edifier MP210 bought from Inmedico, then the volume level will

automatically be set to maximum. If it is the Berringer MS16 the volume must be set to 75% and fixed, before

doing the free field calibration.

The speaker angle must also be selected in the dropdown menu

0° degrees 45° degrees (default) 90° degrees

To calibrate, a sound pressure meter

and a measuring free field microphone

is needed. The microphone is placed

where the patient's head is placed

during hearing tests. The signal used to

calibrate must be wider in spectrum

than a pure tone, warble tone is

recommended. This is because

standing waves in the test room will

make a pure tone's amplitude extremely

dependent of the exact speaker and

microphone position.

Ref.: Danish Technical Audiological Society

1m.

ID: 993 / ver. 206

6 Use of the program with SM930 and SM950

Basic operation of the program:

Start the program and connect the

audiometer to the USB port. The

program will start at 125 Hz, left

channel and 80 dB calibration level,

and the tone output will be turned on.

The available buttons that appears in

the program depends of which

audiometer is connected to the PC.

SM930: Air

SM950: Air, Masking, Bone

The values in the write fields show the difference in dB form Normal calibration. In the right side you will find

the RETSPL values for each frequency. See section 6. Hearing level offsets for more information.

The program can be controlled by the mouse, dragging the sliders and clicking the buttons. However, to

make the calibration process more convenient, it can also be controlled by the keyboard.

Changes the frequency.

Move calibration sliders 1 step down, -0.1 dB

Move calibration sliders 1 step up, +0.1 dB

Move calibration sliders 10 step down, -1 dB

Move calibration sliders 10 step up, +1 dB

Change function between air, left, right, and

bone

The program automatically

detects the audiometer type,

and the bone and masking

buttons in the top of the main

screen and will only be

present if the audiometer

supports bone and masking.

By using the keyboard, you

can keep your eyes on the

calibration equipment all the

time, instead of having to

look at the PC monitor to

follow the mouse pointer.

ID: 993 / ver. 206

Preparing calibration

Place the left telephone on the artificial

ear and ensure it fits tight. This can be

done by selecting 125 Hz, and then

position the telephone to get the

biggest readout on the calibration

equipment.

6.1 Air conductor calibration

By means of the 11 calibration sliders,

calibrate the sound pressure for the 11

frequencies to the level set in the

Calibration Level box. This is 80 dB by

default, but may be changed if desired

with the Down and Up buttons. If there

is masking available on the

audiometer, select it and calibrate the

masking to a level that is 3 dB higher

than the tone, for each frequency. Disable the band pass filter on the calibration equipment during masking

calibration. When finished the left channel place the right telephone on the artificial ear, select the right

channel, and repeat the tone and masking calibration. Before you start the calibration, be sure the

transducer in the dropdown menu e.g. air: TDH-39 is equal to the transducer in the headset of the

audiometer.

6.2 Bone conductor calibration

If there is a bone conductor available, it

should be calibrated too. Select bone and

calibrate the tone levels the same way as

the telephones, 60 dB VFL for frequencies

125 Hz to 4 kHz and 50 dB VFL for 6 kHz

to 8 kHz.

There is no masking calibration with the

bone conductor.

All calibration values and the date of

calibration are stored in the audiometer’s

memory immediately when the sliders are

moved, so nothing has to be done when

finished, just exit the calibration program.

To calibrate more than one audiometer,

just unplug the one that is calibrated and

connect the next one. The program will

detect this and update the screen.

ID: 993 / ver. 206

7 Use of the program with TSM400, TSM500, T830 & T840

Basic operation of the program:

Start the program and connect the tympanometer to the USB port. The program will start at probe tone 226

Hz, 100 dB calibration level, and the tone output will be turned on.

The available buttons for tympanometer will appear on the screen.

T830: Probe tone calibration

Pressure calibration

TSM400,

T840: Probe tone calibration

Pressure calibration

Contralateral

TSM500: Phone1 left & right

Bone conduction calibration

Probe tone calibration

Pressure calibration

Contralateral

The values in the write fields show the

difference in dB for calibration. On the right

side, you will find the RETSPL values for

each frequency. See section 6. Hearing level

offsets for more information.

The program can be controlled by the mouse, dragging the sliders and clicking the buttons. However, to

make the calibration process more convenient, it can also be controlled by the keyboard.

Changes the frequency.

Move calibration sliders 1 step down, -0.1 dB

Move calibration sliders 1 step up, +0.1 dB

Move calibration sliders 10 step down, -1 dB

Move calibration sliders 10 step up, +1 dB

Change function between air, left, right, and

bone

The program automatically

detects the audiometer type,

and the bone and masking

buttons in the top of the main

screen and will only be

present if the audiometer

supports bone and masking.

By using the keyboard, you

can keep your eyes on the

calibration equipment all the

time, instead of having to

look at the PC monitor to

follow the mouse pointer.

ID: 993 / ver. 206

7.1 Calibration of probe tone

To calibrate the probe tone, an artificial ear with a 2cc coupler

is required. Place the probe in a 2cc coupler.

Adjust the sliders so all frequencies from 226 Hz to 4 kHz, reach 100 dB SPL.

According to IEC 60318-5

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