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19
Technical specifications
Type identification
MADSEN Zodiac is type 1096 from GN Otometrics A/S
Compliance measuring system
Probe tone:
Dynamic probe tone level:
THD:
Frequency accuracy:
Range:
Acoustic reflex
Sensitivity
Reflex Threshold and Reflex Decay:
Reflex Screening:
Step size dB:
Contralateral Stimulation
Pure tones:
Frequency accuracy:
Range:
Range:
Otometrics - MADSEN Zodiac
226 Hz at 85 dB SPL ± 3 dB
678 Hz at 72 dB SPL ± 3 dB
800 Hz at 70.5 dB SPL ± 3 dB
1000 Hz at 69 dB SPL ± 3 dB
The probe tone level will be compensated to accommodate varying ear canal
volumes.
The output level will be decreased in volumes < 1.7 ml
The output level will be increased in volumes > 2.3 ml
< 1% in 2 cc
± 0.5%
0.2 ml to 5.0 ml ± 5% or 0.05 ml whichever is greater *
5.0 ml to 8.0 ml ± 15% *
* The accuracy stated requires that calibration has been performed at the alti-
tude where the device is to be put into operation
0.01, 0.02, 0.03, 0.04 or 0.05 mmho
0.04 mmho
Quick Check: 10 dB
Diagnostic: 5, 10 dB Clinical: 1, 2, 5, 10 dB
500 Hz, 1000 Hz, 2000 Hz, 4000 Hz
± 0.5%
BBN, LPN, HPN at 50 to 110 dB SPL * ±3 dB
* measured in the respective couplers
Contralateral insert phone:
500 Hz at 50 to 115 dB HL ± 3 dB
1000 Hz at 50 to 120 dB HL ± 3 dB
2000 Hz at 50 to 120 dB HL ± 3 dB
4000 Hz at 50 to 120 dB HL ± 3 dB
19 Technical specifications
Contralateral TDH-39 phone:
500 Hz at 50 to 115 dB HL ± 3 dB
1000 Hz at 50 to 120 dB HL ± 3 dB
2000 Hz at 50 to 115 dB HL ± 3 dB
4000 Hz at 50 to 115 dB HL ± 3 dB
129
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