HP Omni 200-5000 Guia do Utilizador descarregar pdf (Página 57)

RM500SL

User's Guide Version 3.12



March 2015

To choose a different Max TM SPL setting:

1. Press <Setup>, then highlight and <PICK> [Max TM SPL].

2. Highlight and <PICK> the current Max TM SPL setting.

3. Highlight and <PICK> the desired Max TM SPL setting from the drop-down list.

4. Press <Continue> to exit Setup.

This Max TM SPL setting will be in effect until you change it.

If the limit is exceeded during an on-ear test, the RM500SL will terminate the test and display the message

'MAX TM SPL EXCEEDED'. You must then decide to either reduce the maximum output limit of the hearing

instrument or increase the Max TM SPL setting following the steps above.

If the MAX TM SPL limit has been disabled, a notice will appear on each real-ear screen. Also, a message

reminding you that the MAX TM SPL limit has been disabled will appear when you select an on-ear test.

ABR nHL to eHL setup

Estimated Hearing Level (eHL): An estimate of the behavioral pure tone threshold that accounts for a

measured ABR threshold.

Normalized Hearing Level (nHL): (a) Stimulus peak-to-peak equivalent SPL (pe SPL) at ABR threshold

relative to the average stimulus pe SPL at ABR threshold of a normal-hearing jury OR (b) stimulus SPL at ABR

threshold relative to the average stimulus SPL at behavioral threshold of a normal-hearing jury for the same

stimulus. (Note that in this latter case, nHL is equivalent to eHL).

In Speechmap/DSL you have the option of entering ABR thresholds in either eHL or nHL. If eHL is selected, the

threshold is treated as if it were a behavioral pure-tone threshold. If nHL is selected, the entered data will first be

converted to eHL before SPL threshold and fitting targets are calculated. To do this, appropriate eHL to nHL

conversion factors must be applied. You can choose to apply default conversion factors or enter new ones for

each client.

This setup allows you to select the default conversion factors that are applied in Speechmap/DSL to convert

ABR nHL threshold to eHL threshold.

1. Press <Setup>, then highlight and <PICK> [ABR eHL to nHL].

2. Highlight and <PICK> [DSL defined] or [User defined]

3. For [User defined], enter conversion factors using a mouse, the keypad or a keyboard. See Assessment data

entry.

When using the barcode option, both entered nHL data and the nHL to eHL conversion factors are printed as a

single barcode. See Barcode data input.

Positioning the client

Sound reflections from nearby surfaces (including the operator) can cause large measurement errors, especially if

the client moves between REUR and REAR measurements. Room noise can increase test time, cause errors and

alter the operation of the hearing instrument being evaluated.

1 2 ... 52 53 54 55 56 57 58 59 60 61 62 ... 129 130

Sem comentários

HP Omni 200-5000 Guia do Utilizador Página 57