Operating Instructions MI 34 / MI 34 HGEBAmi34e.11a.docx 29 850 232/14 08/11Figure 25Fixation of the diagnostic probe7 Reflex Decay Test OperationThe diagnostic probe insert must be used for this test. If you are currentlyusing the optional screening probe insert, do not use it for this test!To exchange the probe insert press the release button ¹of the probe witha tool or a pen. Remove the screening probe insert. Insert the diagnosticprobe insert ¿into the probe head º. Please recognize the right position ofthe connector of the diagnostic probe insert ¿. Press the diagnostic probeinsert ¿ into the probe head º until it fastens.Place the black shoulder strap firmlyover the patients shoulder. Slip theprobe into the holder of shoulderstrap (as shown in figure 25). Makesure you can see the LEDs of theprobe. Place an appropriately sizedeartip firmly on the probe tip. Insertthe tip into the ear canal, enoughto make a seal and provide supportfor the probe tip.If you’re using the headset contraphone, place the phone over theopposite ear, making sure thereceiver lines up directly with theear canal.Run a tympanogram and reflex testas described before.Highlight REFLEX DECAY on themain menu or press the DECAY keyÑto advance to the reflex decaytest.Select a frequency test level.The test level should be set 10 dB above the reflex threshold measuredbefore.