Aegisound DANR THP User manual

THE SOUND OF SAFETY
INSIDE:
Overview .............2
Before Usage .........2
Earplug Insertion ......3
Headset Assembly and
Fitting . .. . . .. . . .. . . .. . 4
Operation. . .. . . .. . . .. . 7
Battery Charging and
Maintenance..........8
Earseal Replacement . 10
Warnings . . .. . . .. . . .. 11
Contact ..............12
HEADSET FITTING AND
OPERATIONS MANUAL
DANR THP
DANR THPC

2|DANR THP | DANR THPC
Overview
The Digital Active Noise Reduction (DANR) Triple Hearing Protector (THP) offers
superior performance as a double hearing protector with the addition of digital active
noise reduction, for a third layer of protection. The DANR Triple Hearing Protector
with Communications (THPC) represents Gentex Corporation’s top of the line product
for combined communications and hearing protection for excellent performance in
extreme noise elds.
Before Usage
Always evaluate the adequacy of your protective gear before entering hazardous
environments.
The wearer should ensure that:
•The earmuffs and earplugs are tted, adjusted, and maintained in accordance
with the manufacturer’s instructions. Improper t of this device will reduce its
effectiveness in attenuating noise. Consult the included instructions for proper t.
•The earmuffs and earplugs have been inspected for serviceability.
•The earmuffs and earplugs are worn at all times in noisy surroundings.
The use of any hearing protective device will not guarantee adequate protection
for hearing loss for all persons under all circumstances. Consult your physician or
audiologist frequently when being exposed to high noise levels. If exposure to high
noise levels occurs during employment activities, also consult your employer regularly.
US Federal Law requires the following additional statements:
The level of noise entering a person’s ear, when hearing protector is worn as directed,
is closely approximated by the difference between the A-weighted environmental
noise level and the Noise Reduction Rating (NRR).
Example:
1. The environmental noise level as measured at the ear is 92 dB(A)
2. The NRR is 32 decibels (dB)
3. The level of noise entering the ear is approximately equal to 60 dB(A)

USER MANUAL |3
See DANR Earplug manual for more detailed instructions
Earplug Insertion
•Improper t of this device will reduce its effectiveness in attenuating noise.
Consult the included instructions for proper t.
•Inspect the earplugs before each use. The earplugs should be free of debris,
tears, and other physical damage.
•Inspect the earplug cable and the cable connection to the earplug.
•Lubricate the earplugs with water or Aegisound Ear Gel around the canal tip.
DO NOT ll tip opening with uid.
Custom Earplug Familiarization
Correct Insertion
(Earplug locked
in helix)
Incorrect Insertion
(Earplug not locked
in helix)
•Wearing custom earplugs for long periods of time may require an adjustment
period of a week or more.
•Begin by wearing earplugs for one hour at a time for the rst several days.
•Once acclimated to the earplugs, start wearing them for two or more hours until
they can be worn for an entire shift. Do not risk exposure to noise without wearing
hearing protection.
Caution:
For noise environments dominated by frequencies below 500 Hz, the C-weighted
environmental noise level should be used.
Although hearing protectors can be recommended for protection against the harmful
effects of impulsive noise, the NRR is based on the attenuation of continuous noise
and may not be an accurate indicator of the protection attainable against impulsive
noise such as gunre.

4|DANR THP | DANR THPC
Headset Assembly and Fitting
1. Rotate the earcup to gain access to the inside.
2. Identify the right and left sides of the headset. The right DANR earplug (RED) connects to
the battery module side, and the left DANR earplug (BLUE) connects to the microphone (or
blank) module side. The inside of each earcup is also labeled “R” and “L” corresponding to
Right and Left respectively.
3. Grasp one DANR earplug connector, and insert the connector into the receptacle inside
the appropriate earcup by aligning the red dot on the connector with the red dot on the
receptacle. Gently press the connector until it snaps in place as shown in the right picture
below.
4. Repeat Step 3 for the remaining DANR earplug.
5. To remove the connector, grip the knurled sleeve of the connector body and pull in the
direction indicated in the right picture below. DO NOT pull on the earplug cable.
Connecting DANR Earplugs to Headset
The headband is assembled to
slide for adjustment at the factory.
The friction required to adjust the
headband or to x the headband
in place may be adjusted by
tightening or loosening the lock
nut on each side of the headband
near the headpad with an 11/32
inch or adjustable wrench.
Friction Adjustment Nut
Slides for adjustment Nut
Aegisound’s Argonaut Communication Earplugs (P/N 05-016017) may be used to offer two-way
communications without active noise reduction when DANR earplugs are unavailable. The Communication
Earplugs are compatible with Gentex’s Low Prole Custom Communications Earplugs (LPCCE) and
Aegisound’s Full Concha Custom Communications Earplugs (FCCCE) as well as Comply™foam eartips,
and provide double hearing protection with two-way communications.
Headband Adjustment

USER MANUAL |5
Fitting DANR THP(C) Headset
If the headset is installed in a helmet, the helmet should be placed on the head so that the
earcups can be rotated away from the ears, allowing earplug insertion before donning
the headset.
5. Place the headset comfortably over the ears.
Make sure the coil is completely inside the
earcup. Do not allow the coil to break the headset
earseal. The coiled cable should completely retract
into the headset.
1. Position the headset around the neck so that
the right (RED) earplug is positioned on the right
shoulder and the left (BLUE) earplug is positioned
on the left shoulder.
2. Insert the right
(RED) earplug
into the right ear.
3. Insert the left
(BLUE) earplug
into the left ear.
4. Place the
headset on the
head and allow
the coil to pull
into the earcup.

6|DANR THP | DANR THPC
To install the headset into some head protective devices, one or both of the earcups may need
to be temporarily removed.
Earcup Removal and Attachment
1. Use a #1 Phillips screw driver to remove the ¼ turn fastener holding each side of the
earcup to the metal stirrup.
2. To remove, gently rotate the fastener ¼ turn counter clockwise (CCW). The cam will
disengage, and the fastener will stop turning when the fastener is disengaged. Too much
applied torque may break the fastener or damage the insert.
3. Pull the stirrup away from the cup. The fastener is captured on the stirrup so it will not
fall away.
4. To reinstall the cup, insert the fastener into the receptacle, and gently rotate the fastener
¼ turn clockwise (CW) to reengage the fastener. A click should be heard as the fastener
cam engages. Too much torque may cause damage to the fastener or the insert.
5. Gently try to pull the stirrup away from the earcup to verify the fastener is reengaged.
6. Repeat for the opposite earcup side.
Pull on Stirrup to
Verify Fastener
Engagement

USER MANUAL |7
The power switch is located below the battery at the bottom of the right side earcup. The
switch slides forward and backward with the 0 indicating the OFF position and 1 indicating the
ON position. The headset power should be in the OFF position when not in use and anytime
the earplugs are not fully inserted in the ears.
The headset controller automatically initializes to the
user’s ear each time the power is turned on. This process
is referred to as “AutoID”. AutoID should be conducted
with the earplugs fully inserted, with the ear cups in
normal position over the ears, and in a relatively quiet
environment. The user should wait 1-3 minutes after
inserting the earplugs before turning on the power. After
turning on the power, the user will hear a brief noise in both
ears for 3-10 seconds. After the initial AutoID sequence has
stopped, the system may take as long as 60 seconds to
initialize to the user. The user will hear a voice stating that the
headset is online after the controller comes on. If the AutoID
process fails, or if the user hears objectionable noises after
the controller turns on, the power should be cycled off and
then back on, to repeat the AutoID process. The different
voice messages and when they will be heard are summarized
in the table to the right.
DANR Controller
In the event that either “ANR disabled” or “Headset Problem” messages are delivered, two-way
communications capability will remain completely operational. Communications is also available
during headset initialization.
Message When
“Identifying
User”
After power
up
“Headset
Online”
~1 min after
power up
“ANR
Disabled”
within 1min
if error on
start
“Headset
Problem,
Restart
Headset”
Error is
detected
after start
“Battery Low”
Battery
power is
low
0 = OFF
1 = ON
Operation
Power

8|DANR THP | DANR THPC
The muzzle and boom communications modules provide two-way communication capability to
the DANR THPC. The muzzle contains a digital noise canceling microphone surrounded by a
plastic housing lined with a compliant seal, called the “muzzle”. The boom contains a similar
microphone without the housing and seal. There is a replaceable wind guard over the microphone
that is held in place with a small o-ring.
Muzzle and Boom Communications Modules
After connecting the DANR THPC headset to the radio, use the oval shaped button on the back
of the muzzle or boom (shown above) to transmit the voice. In most cases, the radio PTT button
can also be used. When talking in high noise environments, the muzzle should be centered and
tightly sealed around the mouth to transmit the best speech quality.
It is advisable to rst connect the DANR THPC to the radio or phone and turn the headset on
before turning on the radio or phone.
Battery Charging and Maintenance
The battery is supplied with a minimal charge. Charge the battery to a full charge level prior to its
rst use per the battery charger instructions. When the user has the earplugs installed, a vocal
audio warning from the headset will alert the user when the battery charge is low.
See instructions for the particular battery charger used.
Wind Guard
Push-to-talk Button
Push-to-talk Button
Wind Guard

USER MANUAL |9
The rechargeable battery is attached to the earcup. A four step action is required to release the
battery, as illustrated below. A locking lever prevents the battery from accidentally becoming
disengaged from the headset.
Removing the Battery from Headset
1. Place the
index nger
on the
release lever.
2. Push the
release lever
towards the
earseal until
it stops.
3. With the
release lever
in position,
press the
button down.
4. With the button
pressed, pull back
on the release
lever and remove
the battery.
The battery is installed by placing the battery bottom in the earcup pocket and pushing the top
edge of the battery against the earcup until it latches in place.
Battery Installation into Headset
Top Edge

10 |DANR THP | DANR THPC
Maintenance
Earseal Replacement
Remove the seal by grasping and pulling the
rear ap of the seal over the retention lip of
the earcup on each side.
Replace the earseal by stretching the rear
ap of the earseal over the retention lip of the
earcup on each side.
The earplugs should be cleaned periodically with warm, soapy water and/or non-alcohol
wipes to prevent buildup of dirt and to disinfect. (NOTE: Do NOT submerge or allow water to
enter the sound port in the tip of the canal.) Earseals, earcups, and headband may be wiped
down with a cloth dampened with water.
The earplugs, headset, and associated equipment should be stored in the protective
cases provided.
See the Troubleshooting
and Maintenance guide
for details on headset
maintenance.
See the DANR Earplug
Manual for required
DANR earplug service and
maintenance.
Replacement
Parts Description
05-021001 DANR Earplug Set
05-021008 Replacement Waxguards with Applicator
05-999002 Aegisound® Ear Gel
05-999001 Replacement Earseal Kit
05-005001 DANR THP base headset with blank
module (battery not included)
05-005023 Battery Pack
05-012001 Two Gang Desktop Battery Charger
Boom and
Muzzle
Modules
Please contact Gentex Corporation
for information on currently available
congurations
EarplugsHeadset

Warning
This hearing protector is provided with active noise reduction. The wearer should
check correct operation before use. If distortion or failure is detected, the wearer
should refer to the manufacturer’s advice for maintenance and replacement of the
battery.
Performance may deteriorate with battery usage. The typical period of continuous use
that can be expected from the hearing protector is 12 hours.
The hearing protector is provided with electrical audio input and output to allow for
two-way communications. The wearer should check correct operation before use. If
distortion or failure is detected, the wearer should refer to the manufacturer’s advice.
The performance of the active noise reduction may be adversely affected when
sustained oscillation (whistling or instability) is perceived. If retting the hearing
protector or replacement of the batteries does not overcome this malfunction, the
wearer should contact the supplier or manufacturer
The output of the electrical audio circuit of this hearing protector may exceed the daily
limit sound level and/or upper action level.
The audibility of ambient warning signals at a specic workplace transmitted by sound
generated outside the hearing protector may be impaired.
Protection afforded by the DANR system will be severely impaired if:
•The earmuffs and earplugs are not tted, adjusted, and maintained
manufacturer’s instructions.
•The earmuffs and earplugs are not regularly inspected for serviceability.
•The earmuffs and earplugs are not worn at all times in noisy surroundings.
Earmuffs, and in particular cushions, may deteriorate with use and should be
examined at frequent intervals for cracking and leakage, for example.
The tting of hygiene covers to the cushions may affect the acoustic performance of
the earmuffs.
This product may be adversely affected by certain chemical substances. Further
information should be sought from the manufacturer.
See supplemental component manuals for additional warnings and cautionary
statements.
DANR DHP |DANR DHPC |USER MANUAL | 11

12 |DANR THP | DANR THPC
01-000001, Revision 8
Gentex Corporation
645 Harvey Road, Suite 102
Manchester, NH 03103 USA MADE IN THE USA
[phone]
[email protected]