Table of contents
1 Launching the software.................................................................................................................... 1
1.1 Starting up from OtoAccess
TM
............................................................................................... 1
1.1.1 Module Setup in OtoAccess™ .................................................................................. 1
1.2 Starting up from NOAH (ASSR only)..................................................................................... 2
1.3 Change & view License ......................................................................................................... 3
2
Ensuring the Eclipse is working properly ......................................................................................... 5
2.1 Calibration of Eclipse ............................................................................................................. 5
2.1.1 peSPL to nHL correction values ............................................................................... 6
2.2 Limiting noise in the test environment ................................................................................... 7
2.2.1 Grounding ................................................................................................................. 7
2.2.2 The best Test Site & Setup for ABR recordings ....................................................... 7
2.2.3 Limiting noise - Equipment setup ............................................................................. 8
2.2.4 Limiting noise - During testing .................................................................................. 9
2.2.5 Changing protocol settings to limit electrical interference ........................................ 9
2.2.6 Determination of noise during a recording ............................................................... 9
2.3 Service check using the Loop back box (LBK15) ................................................................ 10
2.4 Testing noise level on the artificial patient LBK15 ............................................................... 12
2.4.1 Check the amplitudes of the EEG with LBK15 ....................................................... 13
3
EP15/25 ......................................................................................................................................... 15
3.1 About EP15/25 Module ....................................................................................................... 15
3.2 Brief Introduction to ABR ..................................................................................................... 16
3.3 The EP15/25 Menu Items .................................................................................................... 17
3.4 General Operation of EP 15/25 ........................................................................................... 18
3.4.1 Toolbar .................................................................................................................... 18
3.4.2 Record tab .............................................................................................................. 20
3.4.3 Rejection level ........................................................................................................ 21
3.4.3.1 Advanced Rejection ................................................................................ 22
3.4.4 Fmp and Residual Noise ........................................................................................ 23
3.4.5 Graph area .............................................................................................................. 25
3.4.5.1 Changing the Gain and Time scale ......................................................... 25
3.4.5.2 Right click in the graph area .................................................................... 25
3.4.5.3 Right click on the curve handle ............................................................... 26
3.5 Edit tab ................................................................................................................................ 29
3.5.1 Assigning Waveform Markers and Labels .............................................................. 29
3.5.1.1 Latency times .......................................................................................... 31
3.5.2 Double Cursor / measuring individual differences .................................................. 32
3.5.3 Filter settings .......................................................................................................... 32
3.5.4 Show Condition / show Fmp Graph ........................................................................ 33
3.5.5 Latency Template ................................................................................................... 33
3.6 Latency tab .......................................................................................................................... 34
3.7 System Setup ...................................................................................................................... 36
3.7.1 Auto Protocols ........................................................................................................ 36
3.7.1.1 Predefined protocol settings .................................................................... 36
3.7.1.2 Type of measurement ............................................................................. 37
3.7.1.3 Print Wizard ............................................................................................. 37
3.7.1.4 Stimulus properties ................................................................................. 37
3.7.1.5 Filter properties ....................................................................................... 41
3.7.1.6 Display properties ................................................................................... 45
3.7.1.7 Recording properties ............................................................................... 46
3.7.1.8 Recording begin and end ........................................................................ 47
3.7.1.9 Rejection ................................................................................................. 47