Adjusting the ambient sound volume
Use the volume keys (see Figure 3) to adjust the sound level at which you can hear the ambient
environment. On powering up, the system amplifies soft ambient sounds to a sound level similar
to that heard if the ears were unprotected.
By pushing the volume up key, amplification can be increased by up to 6 dB (from the power up
setting) in 2 steps. By pushing the volume down key, amplification can be reduced by up to 15 dB
(from the power up setting) in 5 steps. A beep indicates when you have reached either end of the
volume control range.
The sound level of the communication signal is adjusted independently, using the volume control
of the portable radio device.
To avoid wind noise in outdoor environments, you can cover the ear microphones with the
snap-on foam wind screen provided.
Taking the system off
Figure 10:
Hold the ear mold by the earJack
TM
adapter and remove it carefully from your ear.
Use a slight upward movement to avoid a rapid
pressure drop.
Maintaining the system
Figure 11:
Remove the earJack
TM
adapter from
the ear mold by pressing the snap lock springs
together and gently pulling the adapter away,
starting with the top.
Figure 12:
Clean and disinfect the ear molds
with soap and water. Never use water – or any
other liquid – to clean the earJack
TM
adapters.
Figure 13:
Dry the ear molds using a fan or
compressed air before remounting the
earJack
TM
adapters.
Figure 14:
Insert the earJack
TM
adapters into
the ear molds by first hooking the lower
hinge of the earJack
TM
adapter into the mold,
then pushing the upper part firmly into the
mold until it clicks. By correctly inserting the
adapter you will ensure a tight seal and
proper operation of the hearing protection.
You can test the tightness of the seal by
slightly blowing the ear mold at the open end
with your mouth.
Functions and Technical Data
Hearing Protection
Attenuation values for
primero DPC
hearing protection are shown in Table 1.
Table 1:
Attenuation values (mean, standard deviation, and assumed protection)
for octave band frequencies, and SNR, L, M, and H attenuation values.
primero DPC
Frequency
Mean
Standard
Assumed
Attenuation
Deviation
Protection
Hz
dB
dB
dB
125
21.9
5.2
16.7
250
21.9
5.2
16.7
500
21.1
5.8
15.3
1000
26.7
4.0
22.7
2000
32.7
3.5
29.2
4000
29.8
3.4
26.4
8000
31.7
4.7
27.0
SNR = 24
L = 18
M = 20
H = 27
APV Assumed Protection Value
H
High-frequency attenuation value
M
Medium-frequency attenuation value
L
Low-frequency attenuation value
SNR Single Number Rating attenuation value
The attenuation values in Table 1 characterise the passive attenuation provided by the ear molds
with the earJack
TM
adapters inserted, i. e. when the dynamic attenuation system is switched off.
When the system is switched on, ambient sounds are reproduced by the ear speakers with the
output level limited to 80 (+/-2) dB(A) (free field equivalent). The criteria levels listed in Table 2
represent the critical noise exposure at which the combined passive and dynamic attenuation
exceeds 85 dB(A).
Table 2:
High frequency criteria level H, medium frequency criteria level M, and low frequency
criteria level L for level dependent attenuation
H
108 dB
M
105 dB
L
98 dB
Receiving External Communication
The output of portable radios is reproduced by
primero DPC
using an acoustic shock limiter,
which limits the sound exposure to 95 (+/-) 2 dB(A) (free field equivalent).
When using the communication system with high output volume settings, the sound level may
exceed 85 dB(A). At this volume, the daily sound level exposure limit may be reached after 30–60
minutes of cumulative signal reception (about 10 % of receiving time over an 8-hour day).
The user is advised to adjust the system’s volume control to the minimum level required to under-
stand communications.
In-Ear Microphone
primero DPC
is equipped with an in-ear microphone, which picks up the user’s voice for
communication. Thanks to Phonak’s specially developed algorithm, the background noise is
largely filtered out before the voice signal is sent to the radio. Medium-loud, loud and very loud
noise (~70 dB – 115 dB) is recognized and significantly filtered out of the speech signal. It is
important that one side (right or left) of the
primero DPC
(earJack) is equipped with the in-ear
microphone marked and the other side equipped only with a loudspeaker .
Power Supply
When powered by its battery,
primero DPC
typically draws 4mA of power. Either an LR03 (AAA)
battery or rechargeable battery rated between 1.2 V and 1.5 V can be used. The typical battery life
is 200 hours.
When powered by a radio system,
primero DPC
typically draws 9mA from this system. Supply
voltage should be between 2.6 V and 28 V.
Fixing the PTT Cover Ring
On the
primero DPC
the PTT button may be surrounded by a cover ring, which protects the button
from unintended use. If required, it’s possible to attach the cover ring by placing three drops of
superglue (a cyanoacrylate adhesive such as Loctite 460) around the outer edge of the PTT but-
ton. Make sure that no glue penetrates the small gap surrounding the button (see Figures 15 and
16).
Figure 15:
If required, use superglue to mount the PTT cover ring to protect against
unintended use.
Figure 16:
Be sure not to get any adhesive in the gap between the PTT button
and the surrounding edge.
Attaching Wind Screens
When using
primero DPC
products in outdoor environments, wind screens significantly reduce
the wind noise generated by turbulence around the microphones.
Snap-on foam wind screens are supplied to shield the microphones located on each earJack
TM
adapter. When attaching these, ensure that the snappers are inserted precisely into both slots on
the adapter, as outlined in Figure 17.
Figure 17:
Mounting the snap-on foam wind screens on to the microphones
of the earJack
TM
adapters.
Attaching the Screw-on Clip
To attach the
primero DPC
control box to a belt or item of clothing, a rotatable clip, can be
screwed on. Use a standard screw driver and mount firmly.
Available Spare Parts and Options
Replacement ear molds
earJack
TM
adapter DPC with loudspeaker
earJack
TM
adapter DPC with both, loudspeaker and in-ear microphone
Snap-on foam wind screens (for the ear microphones)
Snap-on neck cord
Screw-on clip for mounting the control box to a belt or item of clothing
Cover ring for PTT button (to avoid unintended use)
Pocket for carrying and storing the system
Optional: Covert Wireless PTT and Tactical Wireless PTT
Optional: Wireless PTT units
Two optional wireless PTT units are available. One is designed primarily for covert applications,
called the covert wireless PTT AC. The second is for tactical applications, called the tactical wire-
less PTT AC. For more information on either PTT, please contact your local Phonak representative
or visit our website at www.phonak-communications.com
Conformity
Hearing Protection
Phonak
primero DPC
hearing protection complies with EU directive 89/686/EEC for personal
protective equipment and has been tested and approved according to EN 352-7:2002 for Hearing
Protectors – General Requirements – Part 7: Ear-plugs with level dependent attenuation.
EC type examination certificate is provided by notified body BSI Product Services (0086),
Maylands Avenue, Hemel Hempstead, HP2 4SQ, United Kingdom.
Electromagnetic Compatibility
primero DPC
is in conformity with EN 55022:1998 + A1:2000 + A2:2003 class B and EN
55024:1998 + A1:2001 + A2:2003 in compliance with the specifications of the EMG Guideline
89/336/EEC.
Conformity declaration
This Class B digital apparatus complies with Canadian ICES-003 Note: This equipment has been
tested and found to comply with the limits for a class B digital device, pursuant to part 15 of the
FCC rules. These limits are designed to provide reasonable protection against harmful inter-
ference in a residential installation. This equipment generates, uses, and can radiate radio waves
and, if not installed and used according to the instructions, may interfere with other radio
communication. However, there is no guarantee that interference will not occur in a particular
set-up. If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
Reorient or relocate the receiving antenna
Increase the distance between the equipment and receiver
Connect the equipment into an outlet on a circuit different to that
to which the receiver is connected
Consult the dealer or an experienced radio/TV technician for help
Guarantee
The guarantee for
primero DPC
is valid for two years from the date of purchase. We accept no
liability for indirect or consequential damages.
Manufactured by Phonak Communications AG
Laenggasse 17 | 3280 Murten | Switzerland
Phone +41 26 672 96 72 | Fax +41(0)26 672 3344
[email protected] | www.phonak-communications.com
029-308
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