Resonance R27A 2 Channel Tone & Speech Testing Diagnostic Audiometer
The Resonance R27A, is a 2 Channel Diagnostic Audiometer which can test Air Conduction with Masking & Bone Conduction. It also has the ability to be connected to external Speakers for FreeField Testing. The Resonance R27A can test Live Speech as well as Pre-Recorded Speech via its EXT ports. This unit is affordable & very easy to use. There is a direct PDF function meaning that Audiograms can be saved directly to PDF.
GENERAL SPECIFICATIONS:
DIMENSIONS AND WEIGHT
- L x W x H: 370 x290 x180 mm
- Net weight: 3.5 kg
TEST TYPES
- Pure Tone test, Autothreshold, ABLB, Speech Test,
- Stenger, GAP, DLF (Difference Limen for Frequency)
DISPLAY
- 7” TFT Colour display
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
DATA TRANSFER TO PC
- Via cable through USB port
COMMUNICATION PORT
- Nr.1 USB host type A
- Nr.1 USB slave type B
WINDOWS® COMPATIBLE SOFTWARE
- Resonance MDS Management Data Suite
POWER:
POWER SUPPLY
- 110 -240 V AC 50/60 Hz 40 VA
- Fuses: 2 x T 1 A L 250 V
CONSUMPTION
- Max current: 0.15 A
- Power consumption: 40 VA
ENVIRONMENTAL:
OPERATING ENVIRONMENT
- Storage: -20° C up to +50° C
- Operating: +15° C up to +35° C
- Humidity: up to 90%, (non-condensing)
- Ambient pressure: from 700 hPa up to 1060 hPa
AUDIOMETRY OPERATING SPECIFICATIONS
RANGE
- Frequency range:
125 – 8000 Hz (with DD45)
125 – 12500 Hz (with HDA280)
250 – 8000 Hz (with B71W) - Range stimuli level -10 up to 120 dB HL
ACCURACY
- Frequency < 0.5%
- Distortion < 1%
- Attenuator linearity 1 dB per 5 dB step, max 3 dB whole range
TYPE OF SIGNALS
- Pure tone: sine wave 125 to 8KHz signal (to 12.5 KHz for HDA280 phones)
- 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
- On/Off rise – fall time: 40msec
OUTPUT TRANSDUCERS
- ACR, ACL: 10 ohm DD45 matched pair earphone, alternatively HDA280 Sennheiser. IP30 Insert earphones (optional)
- BC: B71W Radioear; B81 (optional)
- INSERT: Insert transducer (optional)
- 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 0.5, 1 and 2 Hz)
QUALITY SYSTEM:
- Manufactured, designed, developed and marketed under an ISO 13485, ISO 9001 certified quality system. Medical CE mark and FDA approval.
COMPLIANCE/REGULATORY STANDARDS:
Designed, tested and manufactured to meet the European and International Standards:
- MDD 93/42/EEC and its revised versions: Class IIa (as referred to in Annex IX, rule 10 of said MDD 93/42 EEC)
- Safety: IEC 60601-1, 3rd edition, Class 1 Type B
- EMC: IEC 60601-1-2
- Audiometer: to IEC 60645-1; IEC 60645-2 and ANSI S3.6, Type 2A
STANDARD ACCESSORIES:
- DD45, ADC or HDA280 headset for audiometry testing
- B71W bone conductor
- Patient microphone (talk back)
- Internal speaker as monitor use
- Built-in talk forward microphone
- Patient response pushbutton
- Built-in fast thermal printer
- 1 roll of thermal paper
- Power supply cable (110 – 220 V)
- Device dust cover
- Multilingual Quick User’s Handbook
- Pen-drive
- SD-card with Multilanguage speech material
- Resonance® MDS software with NoAH® module included (demo version)
- Spare fuse
OPTIONALS:
- USB external keyboard
- Goose-neck microphone
- Insert-Transducer (for masking)
- TDH39 headset
- Pediatric Headset (AC or BC)
- ADC Audiocups Noise reducing headset enclosures
- IP30 insert earphones
- B81 High Output Bone Conductor
- Carrying bag
- MDS software license
- Quick-SIN test license
- Silent cabin cables
- Free field loudspeaker
- Operator headset with microphone and speaker (talk over and monitor)
- Additional patient response pushbutton



