Turn the volume control while lightly pushing it with the ball
of your finger.
Removing Hearing Aid
Open the battery holder (power off), then carefully pull the wire
to remove the hearing aid (if not, whistling may result). Pull the
wire first sideways and then up.
4. Adjust the volume control to a suitable level. Turn the control
forward to increase the volume, or backward to decrease the
volume.
Turn-on precaution
If the hearing aid is turned on again immediately after turning it off,
there may be no sound, but this is not a defect. In such a case,
turn the power off (open battery holder) and wait 10 seconds.
Then turn the power on again (close battery holder).
Adjusting the Controls
This hearing aid is a digital type. Any adjustments must be done
at the dealer. For details, please contact the dealer.
Cleaning Your Hearing Aid
We recommend that you clean your
hearing aid twice a week (more or less
needed) to remove any earwax that
may build up as a result of regular use.
Too much earwax build up can prevent
your hearing aid from working.
Hold the hearing aid as the illustration,
brush off the earwax of the sound
outlet.
TECHNICAL DATA
(
According to ANSI standard S3.22 2003
)
Maximum OSPL90
117 dB (3000 Hz)
HFA-OSPL90
114 dB
HFA-full-on Acoustic Gain
45 dB
Reference Test Gain
37 dB
Frequency Range
200 Hz to 5000 Hz
Equivalent Input Noise Level
18 dB
Total Harmonic Distortion 500 Hz: 1% 800 Hz: 1% 1600 Hz: 1%
AGC
(Attack / Recovery Time)
Input AGC
Attack:
8 msec or 256 msec
Recovery: 8 msec or 256 msec
Output AGC
Attack:
0.25 msec
Recovery: 0.25 msec
Battery Type/Supply Voltage 312/1.4 V
Battery Current/Battery Life 0.95 mA/150 hours
(Typical value)
TECHNICAL DATA
(
)
Reference Test Frequency 1600 Hz
OSPL
90
120 dB
500 Hz
119 dB
Peak
127 dB
Full-on Acoustic Gain
50 dB
Equivalent Input Noise Level
18 dB
Total Harmonic Distortion 500 Hz: 1% 800 Hz: 1% 1600 Hz: 1%
AGC
(Attack / Recovery Time)
Input AGC
Attack:
8 msec or 256 msec
Recovery: 8 msec or 256 msec
Output AGC
Attack:
0.25 msec
Recovery: 0.25 msec
Battery Type/Supply Voltage PR41 (312)/1.4 V
Battery Current/Battery Life 0.95 mA/150 hours
(Typical value)
According to IEC standard Pub. 60118-0-1983
Amendment 1-1994
110
0dB=20µPa
1600 2500
100
90
80
70
60
100
200
500
1000
2000
5000
10000
Frequency (Hz)
O
ut
pu
tS
P
L
(d
B
)
Input SPL 60dB
60
1600 2500
50
40
30
20
10
100
200
500
1000
2000
5000
10000
Input SPL 50dB
(0dB=20µPa)
Frequency (Hz)
A
co
us
tic
G
ai
n
(d
B
)
70
1600 2500
60
50
40
30
20
100
200
500
1000
2000
5000
10000
Input SPL 60dB
(0dB=20µPa)
Frequency (Hz)
A
co
us
tic
G
ai
n
(d
B
)
No. 51990 07-06
Full-on gain curve
Frequency response curve
Basic frequency response
curve
For left ear
Increase
Decrease
Decrease
Increase
For right ear
Full-on acoustic gain
frequency response curve
130
0dB=20µPa
1600 2500
120
110
100
90
80
100
200
500
1000
2000
5000
10000
Frequency (Hz)
O
ut
pu
tS
P
L
(d
B
)
Input SPL 90dB
OSPL90 curve
OSPL
90
curve
120
0dB=20µPa
1600 2500
110
100
90
80
70
100
200
500
1000
2000
5000
10000
Frequency (Hz)
O
ut
pu
tS
P
L
(d
B
)
Input SPL 60dB
130
0dB=20µPa
1600 2500
120
110
100
90
80
100
200
500
1000
2000
5000
10000
Frequency (Hz)
O
ut
pu
tS
P
L
(d
B
)
Input SPL 90dB
