GSI 39
The GSI 39 Auto Tymp provides a flexible screening product for tympanometry, acoustic reflex measurements and audiometry to meet your testing needs today and in the future. It is available in 5 different versions. Choose the features needed today and upgrade easily to the additional features as your needs grow in the future.
• Tympanometry – 226 Hz:
Ear Canal Volume (ECV)
Compliance Peak (cm3)
Pressure at peak of the tymp (daPa)
Gradient (GR) in daPa (width of the tymp)
• Tympanometry – 1,000 Hz:
* Admittance at +200 daPa (C1)
* Admittance at tymp peak (mmhos)
* Pressure at tymp peak (daPa)
• Reflex results may be displayed and printed as:
* Reflex tracings and dB HL values
* dB HL values only
* Yes/No response
• Maximum of 12 test results can be stored
• Built- in printer available in all versions
Available configurations:
• Version 1: Tymp +Ipsi
• Version 2: Tymp + Ipsi + Contra
• Version 3: Tymp + Ipsi + Contra + Audio
• Version 4: Tymp + Ipsi + Audio
• Version 5: Tymp only
Combo Probe (226 Hz and 1 kHz probe tones)
1. Tympanometry and Reflex Modes:
Probe Tone:
• Frequency : 226 Hz +⁄- 2%
• Intensity : 85.5 dB SPL +⁄- 2.0 dB
• Frequency : 1 kHz Hz +⁄- 2%
• Intensity : 75 dB SPL +⁄- 2.0 dB
Pressure:
Range: +200 to -400 daPa
• Accuracy : +⁄- 10 daPa or 15%
• Sweep Rate: 600 daPa/sec slowing to 200 daPa/sec near tymp peak - 226 Hz only
Reflex (226 Hz probe tone):
• Frequencies: 500, 1000, 2000, and 4000 Hz
Output Levels (measured with a 2cc coupler):
IPSI
– 500 Hz: 80, 90, 100 dB HL, +⁄- 3 dB
- 1000 and 2000 Hz: 85, 95, 105 dB HL, +⁄- 3 dB
- 4000 Hz: 80 and 90 dB HL, +⁄- 3 dB
- Ipsi available on versions 1, 2, 3, and 4
CONTRA
- 500, 1000, 2000, 4000 Hz: 90, 100, 110 dB HL, +⁄- 3 dB
2. Audiometry Mode (Version 3 and 4 only)
Probe Tone:
• Frequencies: 125, 250, 500, 750, 1000, 1500, 2000, 3000, 4000, 6000, and 8000 Hz
Intensity Range:
DD 45 (Standard accessory with versions 3 and 4)
- 125 Hz -10 to 50 dB HL
- 500 to 4000 Hz -10 to 90 dB HL
- 6000 Hz -10 to 85 dB HL
- 250 and 8000 Hz -10 to 70 dB HL
Tone presentation:
• Continuous: Steady on when Present bar is depressed
• Pulsed: 2.5/ sec ( 200 msec ON, 200 msec OFF)
• FM (frequency modulated or warble tone): +⁄- 5%, 5 Hz