Maico MA 25 Operating Instructions

Operating Instructions MA 25 / MA 25e
operating instructions_8012238-4_MA25_E_13a 22 8012238-4 10/13
Checklist for Subjective Audiometer Testing
- Clean the ear and head cushion!
- Untangle all lines when necessary
- Are the headphone cushions in good condition?
If not  replace
- Are plugs and leads in good condition/ undamaged?
- Are all controls working properly?
- Is the Patient Response Key working properly (if available)?
- Check batteries and renew if necessary?
Instrument:........................................
Manufacturer:…................................
Serial No.:.........................................
Examiner:........................................
Quality of test signals
All the test frequencies in the below table indicate typical hearing level and can be changed when necessary:
Test these frequencies and enter the following abbreviations, if necessary: “B” for Buzz tone, “G” for Noise, “V” for signal
distortion, “S” for switching masking noise.
Right Ear
Level
Left Ear
kHz
0,25
0,5
1
2
3
4
6
8
0,25
0,5
1
2
3
4
6
8
kHz
AC
30dB HL
50dB HL
70dB HL
* When noise “B”, “G”, “V” or “S” has been checked, please inform your service center!
* If conduction test signals are also audible in the non-test ear, please inform your service center!
Air Conduction Audiogram with test person
Right Ear
Level
Left Ear
kHz
0,25
0,5
1
2
3
4
6
8
0,25
0,5
1
2
3
4
6
8
kHz
Target
dBHL*
Left
Earpiece
Actual
dBHL
**
Left
Earpiece
Right
Earpiece
Is
dBHL
**
Right
Earpiece
* Target value is the value measured in the last audiogram of the test person
**Repeat the measurement with headphones the wrong way around
If the difference between target and actual value at a particular frequency or between right and left headphones is more than 10 dB,
please inform your service center!
Tested.............................................................................................
Date:...............................................................................................

Maico MA 25 Specifications

General

Brand	Maico
Model	MA 25
Category	Medical Equipment
Language	English