Loading Battery
HB-23PT
                                                                                1. Remove the sealing on the positive side of battery (PR-48
             HEARING AID                                                           or 13 zinc-air battery) before loading. The battery operates
                                                                                   normally in about 1 minute after the sealing is removed.
                                         HB-23P                                 2. Open the battery compartment lid.
                                                                                3. Load a PR-48 or 13 battery into the battery compartment
                                          Instruction Manual                       with correct polarity; the plus mark on the battery and the lid
                                                                                   should be on the same side.
                                                                                4. Close the battery compartment lid.
                                                                                  1                       2                 3
                                                                                                                                            Positive
3-20-41 Higashimotomachi, Kokubunji, Tokyo 185-8533, Japan
HOW TO USE YOUR FIRST HEARING AID
   Any hearing aid cannot return level of your hearing to normal or                                                             Mark of positive side
   halt further hearing deterioration, but proper use of your hearing
                                                                                Be sure to remove the battery when the hearing aid is not to be
   aid can help you hear what is going on around you and let you
   get more enjoyment of life.                                                  used for an extended period of time.
   If this is your first hearing aid, you - like most new users - will           Battery life: Approx. 177 hours (PR-48 or 13, for continuous use)
   probably be surprised at the loudness of the sounds, and after                             Battery life will change depending on the operating
   using it for a short while, you may even feel that it is too noisy. The                    condition.
   following three tips are important in overcoming your concerns.
                                                                                Putting on Hearing Aid
  1) Read this manual and become familiar with the hearing aid's
       various mechanisms and how to use them correctly.                        1. Hold the hearing aid as shown and put it on your ear.
  2) First, use your hearing aid in a quiet place and listen to quiet           2. Insert the earpiece into your ear.
       sounds and give yourself sufficient time to get accustomed to
                                                                                      1                                    2
       the sound of your hearing aid.
  3) If any physical problems develop, consult your doctor.
INSIDE THE HEARING AID BOX
Check the all items illustrated below are contained in the box.
                      Earhook S
                      (EH310000)                       Case (HBBXB001)                                                                Insert earpiece
      TONE
                      Joint B
                      (GS96S050)                                                If the hook is small or large and does not fit, consult the dispenser.
                                                       Instruction Manual
                      Soft Earpiece MS                 (41622)
                      (MS: GS300030)
HB-23PT/HB-23P
  Hearing aid
                                                       Precautions Additional
               Battery (13 or PR48)                    Information (41353)
OPERATING INSTRUCTIONS
                                                                                              Small             Good              Large
Parts and Controls
      Wind                Microphone                       Earhook              O-T-M Switch (HB-23PT) /O-M Switch (HB-23P)
     screen                                                 S : EH310000
                        *Tone Control                       M: EH320000         O: Power off                                                   O   T M
                                                            L : EH330000           Set to "O" when the hearing aid is not in use.
                            Volume       TONE
                                                         Joint B
                            Control                                             T: Induction coil (telephone coil, HB-23PT only)
                                                         (GS96S0020)
                                                                                   Set to "T" when using the hearing aid to telephone
                             O-T-M
                                                           Soft Earpiece           or loop.
                             Switch
                                                           S : GS300020
  *MOP
                               Battery                     MS: GS300030
 Control
                          Compartment                      M : GS300040         When the switch of the hearing aid is set to T, noise may be heard
                                                                                in the vicinity of electromagnetic fields, such as generated for
Above illustration shows HB-23PT. HB-23P is not equipped with induc-
                                                                                example by electronically secured gates or similar.
tion coil (T position of O-T-M switch), Tone switch and MOP control.
  The parts drawn on the right side of the above picture are con-               M: Microphone
  sumables. Please ask your supplier to buy them.                                  Set to "M" to hear sounds through the microphone.
* Do not touch the control. Any adjustment should only be per-                  When taking off the hearing aid, set the switch to "O". If not, acoustic
  formed by your Audiologist or hearing aid dispenser.                          feedback may result.
Volume Control                                                                                                                                                         When you remove the hearing aid from your ear
Adjust the sound volume to the most                                                                                                                                    Set the switch to "O" to power off
comfortable level with the volume con-                                                                                                                                 and remove the hearing aid from                                                                                                                O      T M
trol. The best position of the control will                                                                                                                            your ear.
                                                                                                                        Increase
depend upon the distance and voice of                                                                                                                                  When removing the hearing aid with
                                                                                                                                                                                                                                                                                                                  Off               On
the person with whom you are talking;                                                                                                                                  the switch setting "M" or "T", acous-
                                                                                                                                                                                                                                                                                                                 Set to "O"
readjustment may be necessary.                                                                                                                                         tic feedback (high-pitched sounds)
When using the hearing aid for the first                                                                                                                                might be heard.
time, set the control for a comfortable                                                                           Reduce
level, then reduce the volume slightly.
TECHNICAL DATA                                                    (According to ANSI Standard S3.22 1987)                                                              TECHNICAL DATA                                                   (According to IEC Standard Pub. 60118 1983)
     Maximum SSPL90                                                      125 dB                                                                                               Reference Test Frequency 1600 Hz
     HFA-SSPL90                                                          119 dB                                                                                               Full-on Acoustic Gain                                               54 dB
     HFA-full-on Gain                                                      46 dB                                                                                              OSPL90                                                            127 dB
     Reference Test Gain                                                   42 dB                                                                                                                                  500 Hz                        121 dB
     Frequency Range                                                    200 Hz to 6000 Hz                                                                                                                         Peak                          131 dB
     Equivalent Input Noise                                                27 dB                                                                                              Equivalent Input Noise Level                                        26 dB
     Total Harmonic Distortion 800 Hz: 8%, 1600 Hz: 2%                                                                                                                        Total Harmonic Distortion 500 Hz: 28%, 800 Hz: 22%, 1600 Hz: 8%
     Induction Coil Sensitivity 84 dB at 10 mA/m (HB-23PT only)                                                                                                               Induction Coil Sensitivity                                      79 dB at 1 mA/m (HB-23PT only)
     Range of Volume Control                                               40 dB                                                                                              Range of Volume Control                                             40 dB
     Input Switch                                                       O-T-M (HB-23PT), O-M (HB-23P)                                                                         Input Switch                                                    O-T-M (HB-23PT), O-M (HB-23P)
     Output Limiting Control                                            MOP Control, range 10 dB (HB-23PT only)                                                               Output Limiting Control                                         MOP Control, range 10 dB (HB-23PT only)
     Tone Switch                                                        Low Frequency Reduction (HB-23PT only)                                                                Tone Switch                                                     Low Frequency Reduction (HB-23PT only)
     Battery Type, Current, Life 13, 1.3 mA, approx. 177 h                                                                                                                    Battery Type, Current, Life PR-48, 1.3 mA, approx. 177 h
     Receiver, Microphone                                               Magnetic, Electret Condenser                                                                          Earphone, Microphone                                            Magnetic, Electret Condenser
     Dimensions and Weight                                              3.6 × 1.3 × 0.88 cm, 4.2 g (excluding battery)                                                        Dimensions and Weight                                           3.6 × 1.3 × 0.88 cm, 4.2 g (excluding battery)
                                                                                                                                  (Typical value)                                                                                                                                                       (Typical value)
Basic frequency response                                                         Full-on gain frequency                                                                Basic frequency response and                                                            Full-on acoustic gain
and effect of Tone switch                                                        response                                                                              effect of Tone switch                                                                   frequency response
(HB-23PT)                                                                                                                                                              (HB-23PT)
                                                                                                                                                   Input SPL 60 dB                                                                                                                                                       Input SPL 60 dB
                        0dB=20µPa                    1600 2500 Input SPL 60 dB                                                         1600 2500     (0dB=20µPa)                               0dB=20µPa                  1600 2500 Input SPL 60 dB                                                          1600 2500     (0dB=20µPa)
                  130                                                                                  70                                                                                130                                                                                   80
                                                                                 Acoustic Gain (dB)
                                                                                                                                                                                                                                                         Acoustic Gain (dB)
Output SPL (dB)
                                                                                                                                                                       Output SPL (dB)
                  120                                                                                  60                                                                                120                                                                                   70
                  110                                                                                  50                                                                                110                                                                                   60
                  100                                                                                  40                                                                                100      TONE: N                                                                      50
                                TONE: N
                   90                                                                                  30                                                                                 90                                                                                   40
                                                 TONE: H                                                                                                                                                             TONE: H
                   80                                                                                  20                                                                                 80                                                                                   30
                    100      200     500      1000     2000      5000    10000                          100       200     500   1000     2000         5000     10000                       100      200     500    1000     2000       5000   10000                             100       200   500   1000     2000         5000    10000
                                          Frequency (Hz)                                                                    Frequency (Hz)                                                                   Frequency (Hz)                                                                       Frequency (Hz)
                  Response of HB-23P is                                                                                                                                                   Response of HB-23P is
                  equivalent to curve with TONE N.                                                                                                                                        equivalent to curve with TONE N.
SSPL90 frequency response                                                        Induction coil input                                                                  OSPL 90 frequency response                                                      Induction coil input
and effect of MOP control                                                        characteristics (HB-23PT only)                                                        and effect of MOP control                                                       characteristics (HB-23PT only)
(HB-23PT)                                                                                                                                                              (HB-23PT)
                        0dB=20µPa                    1600 2500 Input SPL 90 dB                              0dB=20µPa                  1600 2500 Input 10 mA/m                                 0dB=20µPa                  1600 2500 Input SPL 90 dB                                 0dB=20µPa                1600 2500 Input 10 mA/m
                  130                                                                                 110                                                                                140                                                                                  120
Output SPL (dB)
                                                                                                                                                                       Output SPL (dB)
                                                                                                                                                                                                                                                        Output SPL (dB)
                                                                                 Output SPL (dB)
                  120                                                                                 100                                                                                130                                                                                  110
                  110 MOP                                                                              90                                                                                120                                                                                  100
                        0                                                                                                                                                                    MOP
                       -4                                                                                                                                                                      0
                  100                                                                                  80                                                                                110                                                                                   90
                       -8                                                                                                                                                                     -4
                   90 -10                                                                                                                                                                100  -8
                                                                                                       70                                                                                    -10                                                                               80
                   80                                                                                  60                                                                                 90                                                                                   70
                    100      200     500      1000     2000      5000    10000                          100      200      500   1000     2000         5000    10000                        100      200     500    1000     2000       5000   10000                             100      200    500   1000    2000         5000     10000
                                          Frequency (Hz)                                                                   Frequency (Hz)                                                                    Frequency (Hz)                                                                      Frequency (Hz)
                  Response of HB-23P is                                                                                                                                                  Response of HB-23P is equivalent to
                  equivalent to curve with MOP 0.                                                                                                                                        curve with MOP 0.
Note:                                                                                                                                                                                                                              RION CO., LTD.
                                                                                                                                                                                                                                   3-20-41 Higashimotomachi Kokubunji,
 (1) Production number (serial number) is indicated inside the bat-                                                                                                                                                                Tokyo 185-8533 Japan.
                                                                                                                                                                                                                                   RION CO., LTD. Europe Representative Office
      tery compartment.                                                                                                                                                                                           EC REP           Schaepmanlaan 66 NL-4623 XZ Bergen op Zoom
                                                                                                                                                                                                                                   THE NETHERLANDS
                                                                                                                                                                                                                                                                                                                 2008
 (2) Production year is imprinted at the bottom of the unit.
 (3) Manufacturer's name is imprinted at the rear side of the unit.
                                                                                                                                                                                                                                                                                                      No. 41622 08-01