Instrument OAE, ABR merek OTOMETRICS Type MADSEN AccuScreen Made in Denmark

Technical specifications:

Measurement techniques

TEOAE

• Evaluation method: Noise-weighted averaging, counting of significant signal peaks
• Stimulus: Non-linear click sequence
• Stimulus level: 70-84 dB SPL (45-60 dB HL), self calibration depending on ear canal volume
• Click rate: Approx. 60 Hz
• Frequency range: 1.5 to 4.5 kHz
• Display: Statistical waveform, measurement progress, TEOAE detection level, noise level

DPOAE

• Evaluation method: Noise-weighted phase statistics
• Stimulus: Primary tone pair, f2/f1 = 1.24
• Available test frequencies: Configurable, f2 range 1 to 6 kHz
• Range of protocols (default: 5, 4, 3, 2 kHz (PASS at 3 out of 4))
• Test level: L1/L2 = 60/50 or 65/55 dB SPL
• Display: DPOAE level, test progress, noise level, DP-Gram
• Result display: Overall PASS/REFER, DP-Gram with DPOAE and noise level

ABR

• Evaluation method: Noise-weighted averaging and template matching
• Stimulus: 30, 35, 40 or 45 dB nHL click
• Click rate: Approx. 80 Hz
• Impedance sense signal: 1 kHz square wave
• Impedance test range: 1 to 99 kΩ
• Impedance accepted for test: < 12 kΩ
• Impedance control: Before test, periodically during test, stimulus continues during impedance control
• Display: Statistical graph, test progress, EEG-level, ABR detection probability
• Electrodes: Disposable hydrogel electrodes

Dimensions

Approx. 202 x 73 x 30 mm (8 x 2.8 x 1.2 inches)

Weight

Approx. 240 g (8.5 oz) excluding battery

280 g (9.9 oz) including battery

Display

Type: Color, TFT, touch screen with adjustable LED backlight

Dimensions: 71,5 x 53,6 mm (28.1 x 21.1 inches)

Resolution: 240 x 320 pixels

Keystroke durability: min. 1 million repetitive strokes per screen point

Keypad

Resistive Touch Screen (can be used with gloves)

Memory

Patient memory capacity: Max. 250 patients / Min. 500 tests

Connectors

OAE probe connector: 14 pin ODU Medisnap - For OAE Probe or ABR ear coupler cable

ABR (ABR version only): 4 pin ODU Medisnap - For ABR electrode cable

Real time clock

Integrated real-time clock for time-stamping of measurements.

The clock is automatically synchronized with PC clock when docked.

Backup: Min. 5 days, when battery is removed from unit

Data interfaces

PC: IR data transmission to Docking Station - USB interface from Docking Station to PC

Transport and storage environment

Temperature range: -20 - +60°C (-4 - 140 °F)

Humidity range: 20-80 % rel., non-condensing

Air pressure 500 hPa to 1060 hPa

Operating environment

Temperature range: 10 - 40°C (50 - 104°F)

Humidity range: 30-80 % rel., non-condensing

Air pressure 600 hPa to 1060 hPa

Standards:

Otoacoustic emissions: EN 60645-6, Type 2
Auditory evoked potentials: EN 60645-7, Type 2
Patient Safety:
• EN 60601-1, Inter nally Powered, Type BF, IPXO
• UL 60601-1
• IEC 60601-2-26
• IEC 60601-2-40
EMC: EN 60601-1-2
Power supply and battery
Battery type: Rechargeable Li-ion 3.7 V/1800 mAh (6.7 Wh), fully charged
Estimated battery life: 8 hours of continuous use (based on a typical use scenario
Actual use can influence the battery life time)
Battery level indicator: 5-step battery level indicator
Charge time in AccuScreen docking station: 80% charged 4½ hours. Fully charged 6 hours
PC interface
Interface type: USB 2.0, Full-speed
USB Power: Uses <100 mA of current from the USB interface
Printer interface
Interface type: RS232
Connector type: 6-pol Mini Din
DC power input
Input voltage: 5 V DC ±5%
Max. power consumption when AccuScreen is docked: 5VA (5V, 1.0 A)
Max. power consumption when AccuScreen is not docked: 0.25 VA (5V, 50 mA)
Power adapter
Input voltage/range: 100-240 V AC, 50-60 Hz
Output voltage: 5.0 V DC/min. 1.0A
Mains plug types: US, UK, Europe and Australia
Probe
Flexible, shielded cable, approx. length: 120 cm (approx. 55 inches)
Dimensions
Probe body: 20 mm Ø x 23 x 11 mm (0.8” Ø x 0.9” x 0.43”)
Probe tip: 3.3 mm Ø x 10 mm (0.13” Ø x 0.4”)
Weight
Probe incl. probe tip: Approx. 4.5 grams
Eartips
Standard (cylindrical): 4 sizes (3.7 - 5 mm)
Tree tip: 1 size (4 - 7 mm)
Foam tip: 1 size (13 mm)
ABR electrode cable
Flexible, shielded cable, approx. length: 140 cm (approx. 55 inches)
ABR ear coupler cable (optional)
Flexible, shielded cable, approx. length: 145 cm (approx. 57 inches)
Device class
IIa (according to Council Directive 93/42/EEC Appendix IX)
Standard accessories
The MADSEN AccuScreen comes with customized Carrying case, Docking station including Power Adaptor and USB Cable, Starter kit, OAE probe (DPOAE/TEOAE or TEOAE only), Battery, ABR electrode cable (ABR version only), ABR Tester (ABR version only), Cleaning cloth and User Manual.
Optional accessories
Label Printer with printer cable, ABR ear coupler cable and External battery charger. Standard accessories and optional accessories may vary from country to country - please consult your local distributor.