r37a Clinical Audiometer 2017-11-27T09:39:33+00:00
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General Specifications

DIMENSIONS AND WEIGHT

• L x W x H: 370 x 290 x180 mm
• Net weight: 3.5 kg

TEST TYPES

• Pure Tone test, Autothreshold, ABLB, Speech Test, Stenger,
DLI, SISI, Bekesy, Tone Decay, MLB, Multifrequency, GAP,
DLF (Difference Limen for Frequency), High frequency*
up to 20 KHz

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

WINDOWS® COMPATIBLE SOFTWARE

• Resonance MDS Management Data Suite

Audiometry Specification

RANGE

• Frequency range:
125 – 8000 Hz (with DD45)
125 – 12500 Hz (with HDA280)
8000 – 20000 Hz (with HDA300)*
250 – 8000 Hz (with B71W)
• Range stimuli level -10 up to 120 dB HL

ACCURACY

• Frequency < 0.5%
• Distortion < 1%
• Attenuator linearity 1dB per 5 dB step, max 3 dB
whole range

TYPE OF SIGNALS

• Pure tone: sine wave 125 to 8 KHz signal (to 20 KHz for HDA30)
• Warble: ± 5% frequency sine wave modulated,
modulation: sine wave 5 Hz
• Narrow band noise: 24 dB/oct filtered noise
• Speech noise: 1 kHz 12 dB/oct filtered noise
• White noise
• External signal
• External mike
• Speech material recorded on SD card
• Master Hearing Aid: 1 KHz 6, 12, 18 , 24 dB High pass filters
• On/Off rise – fall time: 40msec

OUTPUT TRANSDUCERS

• ACR, ACL: 10 ohm DD45 matched pair earphone, alternatively
HDA280 Sennheiser. IP30 Insert earphones (optional)
• ACR, ACL up to 20 KHz: HDA300* Sennheiser
• BC: B71W Radioear; B81 (optional)
• INSERT: Insert transducer
• Free field output: 600 ohm impedance

STIMULUS PRESENTATION MODALITY

• Presentation: Normal, Reverse, Extended (present
tone for 1 second from 20 dB below the maximum level)
• Modality: Continuous, Pulsed (rate 0.5, 1 and 2 Hz),
Alternated (ABLB and MLB 0.5, 1 and 2 Hz)
• DLI increment levels:
0.1 in steps of 0.1 dB up to 1.0 dB; 1.5, 2, 3, 4, 5 dB
• DLI increment recurrence rates: 0.5 Hz, 1 Hz, 2 Hz
• SISI increment recurrence rates:
0.2 Hz, 0.5 Hz, random. Time on 300 ms
• SISI increment level: 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5 dB
• Bekesy: mode sweep and fixed; Continuous, Pulsed
and LOT; exam duration 30 sec and 60 sec.

* R37A-HF only

Available Models

Discover the different available configurations and find the one that fits your professional needs.

LOGO-R37A-W

2 Channel Tone
and Speech Testing
Clinical Audiometer
Download Datasheet
LOGO-R37A-HF-W

2 Channel Tone and
Speech Testing
Clinical High Frequency Audiometer
Download Datasheet