46
Technical data
Pulse tone
0.25 - 2.5 Hz in steps of 0.25 Hz
Frequency modulation
(Wobbel)
1 - 20 Hz in steps of 1 Hz
Wave form of modulation: Sinus
Complexity of sound
(Wobbel)
1 - 25% in steps of 1%
Amplitude modulation
(SISI)
5, 3, 2, 1 dB steps
Masking tone test
Contralateral free or
synchronous
Broadband noise
Narrowband noise
(acc. to EN 60645-1 chapter 6.4, 8.5 and table 4) Spectrum:
1/3 octave
Masking speech test
Contralateral free or
synchronous
Broadband noise
Speech-simulating noise
frequency
Frequency-weighted noise acc. to EN 60645-2 chapter 13
Speech test
Monaural and binaural
External speech test
any connectable signal source
Supra-threshold tests
SISI, FOWLER, Lüscher, Langenbeck, Stenger and Tinnitus
Output level
max. 120 dB HL
Bone vibrator B 71
Pressing force 5,4 N
Coupling type IEC 373
Headphone Sennheiser
HDA 280
Pressing force 5,0 N
Coupling type IEC 303
Protection class
I
Applied part
Type B
Operation mode
Continuous operation
Type of protection
IPX0
Classification according to
Appendix IX EC Directive
93/42/EEC
II a
Classification acc. to EN
60645-1 (2002-09)
Class 2
Classification acc. to EN
60645-2 (1997-04)
Sennheiser HDA 280: Class B-E
Sennheiser HDA 300: Class B
Period tests
Daily function check
Weekly function check
Metrological check including repeat test of the electrical
safety every 12 months. (Germany: Metrological check
according to Medical Device Operator Ordinance).