Maico easyTymp - Reference Values for Stimulus Calibration

Operation Manual easyTymp
8111254 Rev. 9
56
17/01/2018
6.3 Reference values for stimulus calibration
Table 8
COUPLER TYPES USED BY CALIBRATION
IOW Probe (probe system):
Calibrated using a IEC 60380-5 (2cc) Acoustic coupler
made in accordance to MAICO Standard Values
CIR55 :
Calibrated using a IEC 60380-5 (2cc) Acoustic coupler
made in accordance to ISO 389-2:1994
DD45C:
Calibrated using a IEC 60318-3 (6cc) Acoustic coupler
made in accordance to MAICO Standard Values
Table 9 Reference Values for Stimulus Calibration
REFERENCE VALUES FOR STIMULUS CALIBRATION
Fre-
quency
[Hz]
Reference equivalent threshold sound pressure level [RETSPL, dB re. 20 Pa]
CIR55
ISO 389-2
DD45 C
MAICO Standard Values
IOW Probe
MAICO Standard Values
125
26.0
47.5*
41.0*
250
14.0
27.0*
24.5*
500
5.5
13.0*
9.5*
750
2.0
6.5*
9.0*
1000
0.0
6.0*
6.5*
1500
2.0
8.0*
5.0*
2000
3.0
8.0*
12.0*
3000
3.5
8.0*
11.0*
4000
5.5
9.0*
3.5*
6000
2.0
20.5*
3.0*
8000
0.0
12.0*
-5.0*
WB
-5.0
-8.0*
-5.0*
*All values marked with at star are MAICO Standard Values.
Table 10 Frequencies and Intensity Ranges for Impedance
FREQUENCIES AND MAXIMUM VALUES FOR IMPEDANCE
Center
Frequency
[Hz]
Intensities [dB HL]
CIR55
DD45 C
IOW Probe
Tone
Tone
Tone
125
85
80
70
250
100
100
85
500
110
115
100
750
110
120
100
1000
115
120
105
1500
115
115
110
2000
115
115
105
3000
115
125
95
4000
110
115
100
6000
95
110
85
8000
80
105
80