CENS Proflex DX3 User manual

User Guide
Contains important information - do not throw away
Version 3.00
July 2019
EN3522777
SERIES

2
Disposal Information
Symbols used in this guide
Be aware of information marked with the warning symbol
WARNING, CAUTION or NOTICE!
WARNING points out a situation that could lead to serious injuries.
CAUTION indicates a situation that could lead to minor and
moderate injuries.
NOTICE indicates possible property damage.
Advice and tips on how to handle your device better.
Instruction. Indicates that something has to be done.
!
NOTICE
CAUTION
¡
Category III Personal Protective Equipment (PPE) manufactured by Puretone
Ltd for protection against the harmful effects of noise.
EU Type Tested to harmonized standards EN352-2:2002, EN352-7:2002 and
certified in conformity with the provisions of Regulation (EU) 2016/425
including ongoing surveillance (Module D) by SATRA Technology Europe Ltd,
Bracetown Business Park, Clonee, Co. Meath, Ireland D15 YN2P
(Notified Body 2777).
EU declaration of conformity can be accessed at www.puretone.net
CENS® ProFlex digital
Within the European Union, the marked equipment is covered by “Directive
2002/96/EC of the European Parliament and of the Council of 27 January 2003
on waste electrical and electronic equipment.” Amended by “Directive
2003/108/EC” (WEEE).
Recycle CENS® ProFlex, batteries and accessories according to national
regulations.

Contents
Your CENS ProFlex
Intended Use
General Notes On Safety
Handling Batteries
Setup
Modules
Cleaning and Disinfection
Earpiece Insertion
Earpiece Fitting
Earpiece Removal
Turning Your CENS ProFlex On & Off (All Models)
Adjusting The Volume (DX1)
Adjusting The Volume & Modes (DX3/DX5)
Troubleshooting
Technical Information
4
5
6-7
8
9
10
11
12
13
13
14
15
16
17
18-19
3

Dx1
Dx3 / DxH
5
long press
short press
Dx3 / DxH
Your CENS ProFlex
DX1 DX3/DX5
DX1, DX3 & DX5 are provided with level-dependent attenuation. The wearer
should check correct operation before use. If distortion or failure is detected,
the wearer should refer to the manufacturers advice for maintenance and
replacement of the battery.
4
A
C
B
right ear
left ear
Ear indicator
On/off button
Microphone
Battery lid
D
F
E
Clear tip
Digital push button volume control (DX1)
Digital multi-switch volume control &
mode select (DX3/DX5)
A
C
DB
F
A
C
D
B
E
Every CENS ProFlex can be identified by
the serial number located on the underside
of the module. The intended users name
(personal ID) will be laser marked onto each
custom-made silicone earpiece.
GG
G

Intended Use
are fitted, adjusted and maintained in accordance with the manufacturer’s
instructions.
are worn at all times in noisy surroundings.
are regularly inspected for serviceability.
If the above recommendations are not adhered to, the protection afforded
by the CENS ProFlex will be severely impaired.
CENS ProFlex is intended to protect your hearing while being able to
communicate normally or hear better. To ensure the best possible protection it
has to be used constantly in noisy situations.
CENS ProFlex are reusable devices with a level dependent function. The volume
control function of CENS ProFlex is designed to allow a small increase in low level
ambient sound, affording the user increased awareness in sporting situations.
CENS ProFlex are not intended or suitable for use as a hearing aid or to provide
any correction for hearing loss.
Read and follow the instructions of this user guide before use to avoid possible
injuries or damage.
It is recommended that the wearer should ensure the CENS ProFlex ear-plugs:
5
!

General Notes On Safety
Your CENS ProFlex is sensitive to extreme heat, high humidity,
strong magnetic fields (>0.1T), X-rays and mechanical stress.
Do not expose your CENS ProFlex to extreme temperatures or high
humidity.
Do not leave your CENS ProFlex in direct sunlight.
Do not wear your CENS ProFlex in the shower or when you apply
make-up, perfume, aftershave, hairspray or suntan lotion.
Do not wear your CENS ProFlex when you are exposed to short-
waves, a strong magnetic field, a high frequency field or X-rays.
Do not place your CENS ProFlex in a microwave oven.
NOTICE
Choking hazard posed by small parts.
Keep CENS ProFlex, batteries and accessories out of children’s reach.
If swallowed consult a physician or hospital immediately.
If infants, small children or disabled persons need to wear CENS
ProFlex ensure adequate supervision.
The output of the level-dependent circuit of this hearing protector
may exceed the daily limit sound level.
Performance may deteriorate with battery usage. The typical period
of continuous use that can be expected from the earpiece is up to
400 hours (see page 8 for more information).
!
!
!
6

Leaking batteries will damage the CENS ProFlex.
Turn the CENS ProFlex off when not in use to preserve the battery.
Remove batteries when the instruments are not in use for a
prolonged period of time.
Batteries contain harmful substances that pollute the environment.
Do not throw used batteries into household waste.
Dispose batteries according to national regulations or return them
to your supplier.
Do not use your CENS ProFlex in areas where there is a danger of
explosions (e.g. mining).
Hazard of explosion!
NOTICE
NOTICE
!
!
7
These are reusable devices, and it is strongly recommended that
they are regularly inspected to ensure correct fit and functionality. If
in doubt, return them for a service and check.
Puretone recommend CENS ProFlex electronic modules should be
returned for manufacturer service and inspection annually.
¡
¡
¡

Handling Batteries
Your CENS ProFlex uses a size 13 Zinc-Air battery.
The packaging/tab for this size battery will usually
be identified by the colour orange.
Always use the correct size of batteries, as supplied with your CENS
model.
Remove the tab on your batteries only when you are ready to use
them.
The positive (+) side of the batteries is always the smooth side.
Always keep spare batteries with you.
Typical battery life is up to 400 hours, but will vary depending on ambient
sound levels and environmental conditions such as humidity.
Please note: Once a Zinc-Air battery tab has been removed, battery life will not
typically exceed 45 days. The battery will dry out and no longer be effective.
¡
¡Low Battery Warning
DX1 you will hear a series of 3 beeps repeated every 5 minutes until
the device shuts down or the battery is replaced.
DX3/DX5 you will hear a vocal warning “battery low” every 10
minutes. When the battery reaches low you will hear a series of 6
double beeps, this will be followed by the device shutting down.
If the battery fails during use and is not replaced, your protection will
not be compromised, but the ambient awareness will deteriorate.
8

helix
lock
234
helix
lock
5
long press
short press
Dx3 / DxH
helix
lock
234
helix
lock
5
long press
short press
Dx3 / DxH
helix
lock
234
helix
lock
5
long press
short press
Dx3 / DxH
Inserting The Battery
Removing The Battery
Open the battery lid. Place the magnet stick on the
battery and remove directly out. 9
Setup
Module Insertion
Ensure battery tabs have been removed, open the battery lid.
Place the new battery on the magnet stick as shown.
Insert the battery into the module bottom first, as shown in the
diagram, and then tilt the stick up to insert the top of the battery.
Finally, remove the battery stick from the new battery, and close the
battery lid.
Press modules into earpieces until
they snap into place.
Modules can be used in either the
Left or Right earpiece.
1 2
4
3
5
helix
lock
234
helix
lock
5
long press
short press
Dx3 / DxH
helix
lock
234
helix
lock
5
long press
short press
Dx3 / DxH
helix
lock
234
helix
lock
5
long press
short press
Dx3 / DxH
helix
lock
234
helix
lock
5
long press
short press
Dx3 / DxH

Modules
CENS ProFlex digital custom electronic noise suppressors are designed with a
removable modular format for ease of use, easier cleaning and maintenance.
The module is designed to snap fit into the preformed silicone earpiece.
CENS ProFlex earpieces
Electronic Modules
Interchangeable Passive
Filter Module
Order Code: CENS-PF-PAS
Left Ear Right Ear
Do not use the lid to extract the module from silicone earpiece.
Do not use excessive force when inserting or removing.
Do not use the earpieces without a module (passive or electronic)
fitted.
10
!
!
CENS ProFlex is a 2 part modular system. For optimal protection
the module and silicone earpiece must be inserted correctly as
described on page 12.
NOTICE
helix
lock
234
helix
lock
5
long press
short press
Dx3 / DxH
Dx1
Dx3 / DxH
5
long press
short press
Dx3 / DxH
5
long press
short press
Dx3 / DxH

helix
lock
234
helix
lock
5
long press
short press
Dx3 / DxH
5
long press
short press
Dx3 / DxH
Cleaning and Disinfection
It is recommended that you clean your CENS ProFlex digital after every use to
keep them in perfect working condition.
Remove the module from the earpiece
before cleaning.
Use the brush to clean the sound hole.
Your CENS ProFlex is a highly sensitive system. Proper care and handling will
ensure the best possible performance. Clean the instrument regularly to prevent
damage to the CENS ProFlex and to avoid health problems.
Do not put the CENS ProFlex in water.
(Remove module) use the supplied air puffer to blow debris out of
the sound tube on the earpiece then clean with the brush and wipe
with a damp cloth.
Use a dry soft cloth to wipe the module being
careful not to touch the rubber underneath
where sound is delivered.
Ask your supplier for special care packs and further information on
how to keep your CENS ProFlex in good condition.
This product may be adversely affected by certain chemical
substances, e.g insect repellents containing DEET.
Further information should be sought from the manufacturer.
NOTICE
11
NOTICE Always transport and store your CENS ProFlex in the
protective case supplied.
helix
lock
234
helix
lock
5
long press
short press
Dx3 / DxH
helix
lock
234
helix
lock
5
long press
short press
Dx3 / DxH
5
long press
short press
Dx3 / DxH

Earpiece Insertion
12
You will feel the earpiece lock into place once
properly fitted.
Place the earpiece into your ear canal. Pull the
top of your ear with your opposite hand for easier
insertion.
Rotate the earpiece backward & inward into
its upright position to fully seat the earpiece in
your ear canal. Make sure the top portion of the
earpiece fits into the helix lock of your ear.
It is important that each device is fitted correctly to ensure safe and
effective use. To check the fit is correct, clap your hands near each ear
(ensure the electronic modules are switched off). You should hear the
sound but at a lower level.
!
helix
lock
234
helix
lock
5
long press
short press
Dx3 / DxH
1
helix
lock
234
helix
lock
5
long press
short press
Dx3 / DxH
3
helix
lock
234
helix
lock
5
long press
short press
Dx3 / DxH
2
helix
lock
234
helix
lock
5
long press
short press
Dx3 / DxH
4
Rotate the earpiece forward 45°–90°.

13.
Earpiece is flush and helix is
securely in the ear.
Earpiece is not flush and helix is
not correctly in the ear.
Correct Fitting Incorrect Fitting
Never pull on the battery compartment lid or volume controls to
remove the CENS ProFlex, as this could cause damage.
!Sudden or fast removal of ear-plugs from the ear canal
may damage the ear drum.
NOTICE
Earpiece Fitting
Earpiece Removal
Remove the earpiece and store safely.
helix
lock
234
helix
lock
5
long press
short press
Dx3 / DxH
1
helix
lock
234
helix
lock
5
long press
short press
Dx3 / DxH
2
Grasp the earpiece and rotate it forward while
pulling outward. Do not grasp the module.
Pulling the top of the ear slightly may ease
removal.

Turning Your CENS ProFlex On & Off
Push and release once to toggle on and off.
The on/off button is located at the top of the electronic module.
14
All controls must be operated with the battery lid closed.
DO NOT use your CENS ProFlex earpieces without either the
electronic or passive module being fitted.
Once the devices are switched on, you will be able to hear sound
as normal; however, when a loud sound is detected the device
will automatically reduce the volume to a safe and comfortable
level. After the loud sound has passed the volume is automatically
returned to normal.
Please note:
DX1 there will be a 0.5s delay followed by a start up melody.
DX3/DX5 instant start followed by voice indicator prompting the
current mode setting.
!
!
¡
helix
lock
234
helix
lock
5
long press
short press
Dx3 / DxH

Adjusting The Volume (DX1)
15
All controls must be operated with the battery lid closed.
Short press to cycle through the three volume levels.
Never use your device on a higher volume setting than is
comfortable.
The volume control push button is located at the bottom of the
electronic module.
The volume control must only be operated by your finger tips with
light pressure. Applying excessive pressure can result in the volume
control being damaged. This is a precision miniature device that
must be handled with care.
NOTICE
CAUTION
Dx1

Adjusting The Volume & Modes (DX3/DX5)
All controls must be operated with the battery lid closed.
Short press up - increases the volume level
Short press down - decreases the volume level
Long press up - increments mode select
Long press down - decrements mode select
Never use your device on a higher volume setting than is
comfortable.
The digital multi-switch is located at the bottom of the electronic
module.
The digital multi-switch must only be operated by your finger tips
with light pressure. This is a precision miniature device that must be
handled with care.
NOTICE
CAUTION
16
helix
lock
234
helix
lock
5
long press
short press
Dx3 / DxH

17
Use these tips to resolve simple issues.
Sound is weak.
CENS ProFlex emits whistling
sounds.
Sound is distorted.
CENS ProFlex emits signal tones.
CENS ProFlex does not work.
Ambient sound not as expected.
Replace empty battery.
Increase volume.
Clean instrument.
Close battery door completely.
Reinsert the instrument until it fits
securely.
Clean instrument.
Replace empty battery.
Lower volume.
Clean instrument.
Gently close battery compartment
completely.
Replace empty battery.
Check if the CENS ProFlex is turned on.
Gently close battery compartment
completely.
Replace empty battery. Make sure
battery is inserted correctly.
Check same mode selected for left and
right device.
Problem Possible Solution
Consult your supplier if you encounter further problems.
Troubleshooting

18
Technical Information (EN352)
Electronic Module - Sound Attenuation
Mean Attenuation
Standard Deviation
Assumed Protection
H=27 M=21 L=20
SNR=25
26.1
6.4
19.7
24.6
4.6
20.0
23.2
3.8
19.4
23.3
3.5
19.8
23.4
3.4
20.0
31.6
3.6
28.0
31.8
3.3
28.5
36.4
4.8
31.6
Frequency (Hz) 63 125 250 500 1000 2000 4000 8000
Passive Module - Sound Attenuation
Mean Attenuation
Standard Deviation
Assumed Protection
Program No.
1
2
3
4
Criterion Levels
H=26 M=21 L=20
SNR=25
24.2
4.5
19.7
H
111
112
111
112
M
105
106
106
106
L
105
105
104
105
23.5
3.6
19.9
22.3
2.8
19.5
22.8
3.8
19.0
23.5
3.4
20.1
32.1
3.8
28.3
30.4
3.8
26.6
36.8
5.6
31.2
Frequency (Hz) 63 125 250 500 1000 2000 4000 8000
SNR = Single Number Rating attenuation
H = High frequency attenuation
M = Medium frequency attenuation
L = Low frequency attenuation
EN352-2:2002, EN352-7:2002, Regulation (EU)2016/425 Module D by
SATRA Technology Europe Ltd, Bracetown Business Park, Clonee, Co. Meath,
Ireland D15 YN2P (Notified Body 2777)

19

CENS® is a registered trademark of Puretone Ltd
CENS® module is protected by EC Design Registration No. 001861998-0001
Norwegian Design Registration No. 083344
South African Design Registration No. 2011/01813
US Design Patent D739,946 S.
Puretone Ltd, 9-10 Henley Business Park,
Trident Close, Medway City Estate, Rochester,
Kent. ME2 4FR. UK.
Designed and manufactured in the UK