Audioscan Verifit - Manual (Page 129)

Verifit ® User's Guide Version 3.12  May 2015
23 Technical
Specifications
Specifications subject to change without notice
Environmental conditions
STORAGE & TRANSPORTATION
Temperature - 20°C to
+60°C
Relative humidity (non-condensing)...........5% to 95%
OPERATING
Temperature......................................+15°C to +30°C
Relative Humidity........................................20% - 50%
Atmospheric Pressure.............................81 - 106 kPa
Altitude...................................................below 2000 m
General
Power source:.........100 – 240 V, 50 – 60 Hz, 250 VA
Fuse:.......................................................T2AL , 250 V
Overall dimensions
..............................................................Rear main unit
...........................14.5x16x6.5 in. (36.8x40.6x16.5 cm)
................................................................Test chamber
..............................14x14.4x4 in. (35.6x36.6x10.2 cm)
Weight.....................................................17.6 lb (8 kg)
Display type.................fluorescent backlit active color
Display size............................................12.1” diagonal
Resolution.........................................800x600 (SVGA)
Printer................200 dots per inch thermal line printer
Paper width..................................................3” (80mm)
Headphone monitor amplifier.......1 watt into 16 ohms
Power amplifiers...............................2 @ 5 watts each
Stimulus Channels......................................................2
Measurement channels..............................................2
Connectors.......................1 - external monitor (HDMI)
...........................................................................4-USB
.......................................................1 - Ethernet (RJ45)
Test Box
Working Space.............11x5x1.5 in (28x12.7x3.8 cm)
Speaker..................2 - 2x3 in (5x7.5 cm) independent
Test box isolation @ 1kHz................................>25 dB
Induction Coils per ANSI S3.22-2003
.........1 - Telephone Magnetic Field Simulator (TMFS)
........................................1 - 23 cm diameter test loop
Battery Simulator.......................per ANSI S3.22 2003
Frequency Range..................................200 - 8000 Hz
Coupler microphone noise floor.(200 – 8000 Hz) <40 dB
SPL
Test Stimuli.....................tone, tone burst, pink noise,
..............dual-direction noise,calibrated or live speech
Test stimulus levels.....40 to 90 dB SPL in 5 dB steps
Test stimulus levels (inductive).31.6mA/m(ANSI S3.22)
Test stimulus distortion....................<2% at 90dB SPL
.....................................................<0.5% at 70 dB SPL
Test stimulus accuracy at reference mic. for tones
(200 - 2000Hz).........................................±1.5 dB SPL
(2000-8000 Hz)........................................±2.5 dB SPL
Equalization method..........real-time pressure method
Analysis frequencies per octave..............................12
Analysis filter bandwidth............................1/12 octave
Measurement accuracy at 1 kHz.........................±1db
Measurement accuracy re 1 kHz.±1 dB (200-5000 Hz)
...............................................±2.5 dB (5000-8000 Hz)
Measurement range..........................30 - 140 dB SPL
Harmonic distortion measurement..................2nd, 3rd
..............................................................or 2nd plus 3rd
Harmonic distortion range...................200 to 4000 Hz
Harmonic distortion accuracy...............................±1%
Battery drain range........................................0 - 20mA
Battery drain accuracy..........................................±5%
Battery drain resolution.................................±0.01 mA
ANSI S3.22 - 1996 and 2003 tests available
........................................................................OSPL90
..................................................................Full-on Gain
....................................................Reference Test Gain
...................................................Frequency Response
.........................................................Frequency Range
.......................................................Maximum OSPL90
......................................................Harmonic Distortion
..................................................Attack & Release time
..................................................Equivalent Input Noise
.....................................................Input/Output Curves
.............................Coupler SPL - Telephone Simulator
...................................... Simulated Telecoil Sensitivity
................................................................ Battery Drain
Other tests available
............Speechmap® real-speech audibility measures
....................Real-time adaptive directional verification
............................................Coupler SPL vs frequency
............................................Coupler gain vs frequency
..........................................................Spectral analysis
..........................................Noise reduction verification
...............................Feedback suppression verification
.................................................Distortion vs frequency
.. .Manual measurement of output, gain and distortion
VIEWPORT® audibility, directional, noise reduction and
feedback suppression verification
On-Ear
Speakers...................................2 - 2x 3 in. (5x7.5 cm)
Probe modules..........2 - each containing probe & ref.
microphones
Probe microphone tube.Silicone 1 mm diameter x 75 mm
Probe microphone noise floor (200 – 8000 Hz).< 45 dB
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