Operating Instructions MA 25 / MA 25e
operating instructions_8012238-4_MA25_E_13a
19
8012238-4 10/13
Calibration
Air Conduction:
ISO 389-1/ANSI S3.6 (DD45).
Calibration values:
AC-Headphone DD45
Force 4-5 N
Frequency [Hz]
Reference equivalent threshold according to
ISO 389-1 with coupler IEC 60 318-3
[dB] (re 20
Pa)
125
47.5
250
27.0
500
13.0
750
6.5
1000
6.0
1500
8.0
2000
8.0
3000
8.0
4000
9.0
6000
20.5
8000
12.0
Calibration Values: AC Headphone Radioear DD65 Force 10,1... 11,1 N
Frequency [Hz]
Reference equivalent threshold sound
pressure level according to WDH-Standard
with coupler IEC 60318-3
[dB] (re 20
Pa),
125
52,5
250
39,5
500
19,5
750
11,0
1000
8,5
1500
13,0
2000
9,0
3000
11,5
4000
10,5
5000
14,5
6000
29,0
8000
14,0
Summary of Contents for MA 25e
Page 1: ...Operating Instructions MA 25 MA 25e...
Page 2: ......
