Summary of MA 25
Page 1
Operating instructions ma 25 / ma 25e.
Page 3
Operating instructions ma 25 / ma 25e operating instructions_8012238-4_ma25_e_13a 1 8012238-4 10/13 table of contents page 1 introduction ............................................................................................. 2 2. Description ......................................................
Page 4: 1 Introduction
Operating instructions ma 25 / ma 25e operating instructions_8012238-4_ma25_e_13a 2 8012238-4 10/13 1 introduction thank you for selecting one of our quality products from the maico family range. The ma 25 is designed and manufactured to meet all quality and safety requirements, and has been certifi...
Page 5: 2. Description
Operating instructions ma 25 / ma 25e operating instructions_8012238-4_ma25_e_13a 3 8012238-4 10/13 2. Description the ma 25 / ma 25e screening audiometer is designed to be a device for screening for hearing loss. Output and specificity of this type of device are based on the test characteristics de...
Page 6: 2.1 Important Safety Note
Operating instructions ma 25 / ma 25e operating instructions_8012238-4_ma25_e_13a 4 8012238-4 10/13 2.1 important safety note the ma 25 should always be operated in a quiet room with minimal magnetic influence, to ensure that examinations are not disturbed by external noise. Electro-medical instrume...
Page 7: 2.3 Accessories
Operating instructions ma 25 / ma 25e operating instructions_8012238-4_ma25_e_13a 5 8012238-4 10/13 in accordance with the electronic equipment act for disposal of electronic equipment, the customer is obliged to dispose of the used consumables, according to appropriate regulation at own cost. To ob...
Page 8: Position:
Operating instructions ma 25 / ma 25e operating instructions_8012238-4_ma25_e_13a 6 8012238-4 10/13 figure 1 rear and bottom of the ma 25 2.4 connecting the accessories all the connection jacks can be found on the rear side of the ma 25. All the cables and accessories have to be connected before the...
Page 9: Power On And Power Off
Operating instructions ma 25 / ma 25e operating instructions_8012238-4_ma25_e_13a 7 8012238-4 10/13 3 function of buttons and display power on and power off attention: power on is only possible if headphones are plugged-in! To turn on the audiometer press the tone switch button. To power off the aud...
Page 10
Operating instructions ma 25 / ma 25e operating instructions_8012238-4_ma25_e_13a 8 8012238-4 10/13 3.2 special functions of ma 25e talk forward: talk forward is activated by holding down the hearing level db dialer. While holding down the tone switch the talk forward level can be adjusted. Hughson-...
Page 11: 3.3 Display
Operating instructions ma 25 / ma 25e operating instructions_8012238-4_ma25_e_13a 9 8012238-4 10/13 3.3 display tone: a tone presentation indicator is provided in the top left corner of the display header. Response: when using the patient response switch, a response is indicated in the middle of dis...
Page 12
Operating instructions ma 25 / ma 25e operating instructions_8012238-4_ma25_e_13a 10 8012238-4 10/13 4 performing tone audiometric tests hearing threshold levels can be determined by presenting test signals to the test subject with the included earphones (air conduction – ac). The purpose of ac audi...
Page 13: 5 Setup Menu
Operating instructions ma 25 / ma 25e operating instructions_8012238-4_ma25_e_13a 11 8012238-4 10/13 5 setup menu to access the ma 25/ma 25e setup menu press f1 and f4 simultaneously for 2-3 seconds. F1 change setting f2 browse up in the setup menu f3 browse down in the setup menu f4 save settings a...
Page 14: Intensity Steps
Operating instructions ma 25 / ma 25e operating instructions_8012238-4_ma25_e_13a 12 8012238-4 10/13 intensity steps choose between 1 db and 5 db. Power off settings press change to toggle between never, 1, 2, 3, 4 or 5 minutes. Pulse length press change to toggle between 250 msec and 500 msec. Lang...
Page 15: Hw Test (Only Ma 25E)
Operating instructions ma 25 / ma 25e operating instructions_8012238-4_ma25_e_13a 13 8012238-4 10/13 hw test (only ma 25e) press change to go to the hughson westlake (hw) automatic test procedure setup. Press change to toggle between familiarization on/off. Familiarization is used to train the patie...
Page 16: Frequencies
Operating instructions ma 25 / ma 25e operating instructions_8012238-4_ma25_e_13a 14 8012238-4 10/13 frequencies press change to access the default frequency range from 125 hz to 8 khz for daily operation. 10 frequencies are available to change: 125; 250; 500; 750; 1,500; 2,000; 3,000; 4,000; 6,000 ...
Page 17: 6 Warranty And Disclaimer
Operating instructions ma 25 / ma 25e operating instructions_8012238-4_ma25_e_13a 15 8012238-4 10/13 6 warranty and disclaimer warranty, maintenance and after-sales service hardware the ma 25 audiometer is guaranteed for 2 years. This warranty is extended to the original purchaser of the instrument ...
Page 18: 7 Care And Maintenance
Operating instructions ma 25 / ma 25e operating instructions_8012238-4_ma25_e_13a 16 8012238-4 10/13 7 care and maintenance disconnect the power plug before cleaning! If the surface of the instrument or parts of it is contaminated, it can be cleaned using a soft cloth moistened with a mild solution ...
Page 19: 9 Safety Regulations
Operating instructions ma 25 / ma 25e operating instructions_8012238-4_ma25_e_13a 17 8012238-4 10/13 9 safety regulations 8.1 electrical safety: the ma 25 / ma 25e is in compliance with class b of en 60601-1. The instrument is not to be used in environments dealing with explosive material or equipme...
Page 20: 10 Technical Data
Operating instructions ma 25 / ma 25e operating instructions_8012238-4_ma25_e_13a 18 8012238-4 10/13 10 technical data standards audiometer : en 60645-1/ansi s3.6, type 4 safety : en 60601-1 emc : en 60601-1-2 frequencies and maximum intensities: maximum intensities frequency 125 hz 250hz 500hz 750h...
Page 21: Calibration
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-...
Page 22: Calibration Values:
Operating instructions ma 25 / ma 25e operating instructions_8012238-4_ma25_e_13a 20 8012238-4 10/13 calibration values: ac headphone holmco 8103 b 26 force 13...16 n frequency [hz] equivalent threshold reference level according to iso 389 - 2 measured with coupler iec 60 318-3 [db] (re 20 pa) soun...
Page 23: Dimensions
Operating instructions ma 25 / ma 25e operating instructions_8012238-4_ma25_e_13a 21 8012238-4 10/13 dimensions w x d x h: 22.5 x 18 x 5.5 cm / 8.9 x 7.1 x 2.2 inches weight: 1.0 kg/2.2 lbs – including batteries and headset. (1.6 kg/3.5 lbs – including carrying bag headset, audiogram charts etc.) po...
Page 24
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 lead...
Page 25
Operating instructions ma 25 / ma 25e operating instructions_8012238-4_ma25_e_13a 23 8012238-4 10/13 specifications are subject to change maico diagnostic gmbh salzufer 13/14 10587 berlin / germany tel.: +49 30 - 70 71 46 - 50 fax: +49 30 - 70 71 46 - 99 e-mail: sales@maico.Biz web: www.Maico.Biz.