Home Diagnostic Audiometer With Tympanometer R 25 C


General Specifications
TEST TYPES
• Tympanometry: Automatic Tympanometry, Acoustic
Reflex, Reflex Decay, Quick test: checka and screening, Multifrequency Timpanometry*
• Audiometry: Pure Tone test, Autothreshold, ABLB, Speech Test, Stenger, GAP, DLF
USER INTERFACE
• Multilingual
PRINTER
• Built-in fast thermal printer with paper width: 112 mm supplied as standard part
REPORTS
• Printed on thermal printer
• .pdf report created directly from the device and stored on USB Pen drive with possibility to add patient data and
tests comments via the USB Keyboard (optional)
• Data transfer to PC using Resonance Management Data Suite
COMMUNICATION PORT
• Nr.1 USB host type A • Nr.1 USB slave type B
Tympanometry Specifications
PROBE TONE
• 226 Hz for Admittance (Y) curve tympanometry
• 678, 800 and 1000 Hz for multifrequency tympanometry with added “B” and “G” curve *
INTENSITY
• 226 Hz: 85dB SPL ± 2dB
• 678, 800 and 1000 Hz: 75dB SPL ± 2dB*
ADMITTANCE MEASUREMENTS
• Compliance range at 226Hz: 0,05 up to 7ml
• Sensitivity scale: Autoscale to appropriate range; available scale at 226Hz: 1.5, 2, 5ml or 7ml
• 678, 800 and 1000 Hz: 0 to +25 mmho*
• Sensitivity scale HF: Autoscale to appropriate range,available scales at 678, 800 and 1000Hz: 5, 10, 15, 20, 25 mmho*
AIR PRESSURE
• Control: Automatic
• Range: from +200 up to -400 daPa adjustable in 50 daPa steps
• Sweep rate: 50, 100, 200,300 daPa/sec and automatic
• Indicator: Measured value is displayed
• Safety limitations: -800 up to +600 daPa
ACOUSTIC REFLEX TESTS
• Reflex test method: Threshold , Automatic, Manual
• Stimulus duration: 0,5 , 1 or 2 sec.
• User selectable protocols for all test methods
• Ipsi or Contralateral stimulation for all reflex test
• Automated peak search functions available for all test methods
• Manual Reflex: manual control of all stimuli
• Reflex Decay: Threshold , Automatic, Manual
• Stimulus duration: 10 or 20 sec.
FREQUENCIES AND INTENSITY RANGES
• Ipsilateral:
– Pure tone level range (dBHL) from 50 to 110 (all version)
– Noise level range (dBSPL) from 50 to 100 (all version)
• Frequency: 500, 1000, 2000, 3000, 4000 Hz, BBN,HP or LP noise
• Contralateral:
– Pure tone level range (dBHL) from 50 to 120 (all version)
– Noise level range (dBSPL) from 50 to 115 (all version)
• Frequency: 250, 500, 1000, 2000, 3000, 4000, 6000, 8000 Hz, BBN,HP or LP noise
• Accuracy: ±1% • Calibration accuracy ±3 dB
• Level steps: 1, 2, 5 or 10 dB • On/Off ratio: 70 dB min
Audiometry Specification
RANGE
• Frequency range:
125 – 8000 Hz (with DD45)
125 – 12500 Hz (with HDA280)
250 – 8000 Hz (with B71-W)
OUTPUT TRANSDUCERS
• ACR, ACL: 10 ohm DD45 matched pair earphone,
(alternatively HDA280 Sennheiser, Insert earphones)
• BC: B71-W Radioear; B81 (optional)
• Free field output: 600 ohm impedance
TYPE OF SIGNALS
• Pure tone: sine wave
• Warble: ± 5% frequency sine wave modulated, modulation: sine wave 5 Hz
• Narrow band noise: 24dB/oct filtered noise
• Speech noise: 1khz 12dB/oct filtered noise
• White noise • External signal • External mike
• Speech material recorded on SD card
• On/Off rise – fall time: 40msec
STIMULUS PRESENTATION MODALITY
• Presentation: Normal, Reverse, Extended (present tone for 1 second from 20dB below the maximum level)
• Modality: Continuous, Pulsed (rate 0,5; 1 and 2 Hz), Alternated (ABLB –  0,5, 1 and 2 Hz)
* R25C-PT only
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