protech NoiseBuster PA4000 User manual
LIMITED WARRANTY
Pro Tech warrants this product to the original purchaser against defects in material and workmanship
for six months from date of purchase:
For the period stated above, Pro Tech will either repair or replace at no charge the defective product
with the same model or an equivalent model, provided the purchaser delivers the product in its
original packaging or packaging affording an equal degree of protection, along with proof of
purchase, to the authorized Pro Tech dealer from whom you purchased the product or to Pro Tech if
the product was purchased directly from Pro Tech.
If your product requires service while under warranty, call Pro Tech Customer Service at
1-203-210-7230 or email us at customerservice@noisebuster.net to obtain a Return Authorization
Number (RMA). Return the product with the RMA Number noted on the outside of the package to:
Pro Tech Technologies, Inc., 217 Westport Road, Wilton, CT 06897. Include your name, company
name (if applicable), address, and phone number along with the RMA Number inside your package.
(Packages will not be processed without this mandatory RMA information.)
For repair of any product not covered by or exceeding the date of warranty, simply follow the
procedures above. Upon receiving the product, a service representative will contact you with the cost
of repair or replacement. When the product is returned to the customer, standard shipping and
handling fees will be charged to the customer.
This warranty does not cover defects or damage resulting from: (i) use of the product in other than its
normal and customary manner, (ii) misuse, accident or neglect, (iii) improper operation, adjustment,
alteration or modification of any kind, (iv) any attempt to disassemble or repair, or (v) spills of food or
liquid. This warranty does not cover: (vi) products which have had the serial number removed or made
illegible, or (vii) plastic surfaces and other eternally exposed parts scratched, discolored or otherwise
damaged from normal use.
THE WARRANTY REMEDIES SET FORTH ABOVE ARE EXCLUSIVE AND IN LIEU OF ALL OTHERS,
WHETHER ORAL OR WRITTEN, EXPRESSED OR IMPLIED. NCT SPECIFICALLY DISCLAIMS ANY AND
ALL IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. NO AGENT OR EMPLOYEE OF
PRO TECH IS AUTHORIZED TO MAKE ANY MODIFICATION, EXTENSION OR ADDITION TO THIS
WARRANTY. PRO TECH IS NOT RESPONSIBLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES RESULTING FROM ANY BREACH OF WARRANTY OR UNDER ANY OTHER LEGAL
THEORY, OR FAILURE TO MEET OR COMPLY WITH THE REQUIREMENTS OF ANY SAFETY, OR
ENVIRONMENTAL LAW, ORDNANCE, CODE OR REGULATION OF ANY COUNTRY OR POLITICAL
SUBDIVISION THEREOF.
Some states do not allow the exclusion or limitation of incidental or consequential damages, or allow
limitations on how long an implied warranty lasts, so the above limitations or exclusion may not apply
to you. This warranty gives you specific legal rights, and you may also have other rights that vary from
state to state.
To locate the dealer nearest you, or for service assistance or resolution of a service problem, or for
product information, call:
Pro Tech Technologies, Inc. at 1-203-210-7230 or visit at www.noisebuster.net.
PRO TECH TECHNOLOGIES, INC.
217 Westport Road, Wilton, CT 06897
Tel 203-210-7230, Fax 203-210-7229
www.noisebuster.net
©2007 Pro Tech Technologies, Inc. NoiseBuster® is a registered trademark, Pro Tech Technologies, Inc. as authorized licensee. All rights reserved. (ver. 2/12/08)
Active Noise Reduction Safety Earmuff
Over-The-Head - Model PA4000
MADE IN CHINA
Congratulations on your purchase of the NoiseBuster® Active Noise Reduction Safety Earmuff. The
NoiseBusterActive Noise Reduction (ANR) Earmuff is unlike any earmuff you have ever used. It is the most techno-
logically-advanced hearing protector specifically designed for the industrial worker. Some of NoiseBuster ANR
Earmuff’s key features include:
• 26dB NRR / CSAClassA/ SLC(80) 29.2 Class 5
• 20dBActive Noise Reduction
• Audio input allows you to play music and hear it at lower volume settings
• On/off switch and power indicator
• Stereo input 3.5 mm audio jack
• Up to 65 hours of use on a singleAAbattery
• Resistant to water and moisture, contaminants, mechanical shock and vibration
• Warranty - Six months
Product Contents
• NoiseBuster Safety Earmuff • AABattery
• 3.5 mmAudio Interface Cable • Operating Manual with Warranty Information
• Spacer Shims (2)
Replaceable
Ear Cushion
Adjustable
Headband Slide
LED Power
Indicator
On/Off Switch
Audio Input
Cushioned
Headband
Battery
Seal
Cover
Battery
Cover
Screw
Battery Installation
1. Unscrew Battery Cover Screw in a counter-clockwise direction (Fig.1) and pull away Battery Seal
Cover to expose battery compartment (Fig. 2). For easier removal, loosen other battery cover screw
slightly.
2. Insert providedAAbattery according to their respective (+)/(-) markings in battery compartment.
3. Place Battery Seal Cover back into place. Be sure plastic insert inside rubber Battery Seal Cover is insert-
ed before placing back onto earcup.
4. Screw on Battery Cover Screws in a clockwise direction until tight (Fig. 3)
Earmuff Operation
1. Place earmuff on your head. Adjust the headband and adjustable headband slide appropriate-
ly to ensure that ear cups are centered over the ears and that the earmuff fits comfortably on
the head. Best performance will be obtained when cushions seal tightly against the head.
Hair should be pulled back and out from underneath the cushions and items such as pencils
should not be stored under cushions.
2. Depress the on/off button located on the bottom of one of the ear cups to engage theANR.
The red LED on the ear cup will turn on.
3. An audio adapter cable is provided. This equips the earmuff for use with any portable audio
device. Plug the audio adapter cable into the audio jack of your audio device. Plug the other
end into the line-in jack located next to the on/off switch on the ear cup. Note: The audio input
cover that is plugged into the line-in jack must be removed before the cable can be inserted.
General Care
To properly care for your NoiseBuster ANR Earmuff, the following guidelines are
recommended:
• Avoid physical abuse of the unit, including excess dropping, pulling on cables, etc.
• Minimize exposing the unit to extreme temperatures.
• Clean and disinfect the unit using a cloth moistened with water and a mild soap. Certain chemi-
cals may have a detrimental effect on this product. Avoid exposing the unit to harsh chemicals,
alcohol or petroleum products, or immersing in liquids, as these may damage the earmuff and
battery housing.
• Inspect regularly for hardened or deformed ear cushions and deteriorating insert foam.
Accessories and Replacement Parts
You can purchase the following on line at www.noisebuster.net or by calling us at 1-203-210-7230
• 50cm audio interface cable • Ear cushions
• Battery door assembly • Hygiene kit (ear cushions and foam insert)
Technical Specifications
ANR performance range: Between 20Hz and 800Hz
ANR performance: 20dB between 100 and 200Hz,
with 0dB crossover at 20Hz and 800Hz
Passive attenuation: NRR - 26dB / CSAClass - A/AS/NZS SLC (80) 29.2, Class 5
Frequency response: ± 6dB over the range of the 350 to 3000Hz
Storage temperature: -40C to +85C
Operating temperature: 0C to +45C
Audio cable length: 50cm (20 inches)
Usage Guidelines
• Earmuffs are subject to wear and tear. Regular examinations are required to detect any potential
defect such as a crack or a leak.
• The use of safety glasses while wearing an earmuff may result in a less than optimal seal for the
ear cushion. Degrading this seal can cause a loss of low frequency ENC performance as well as
a loss of passive performance.
• If you are using the earmuff with a portable audio device, avoid using at high volume. Hearing
experts advise against continuous, loud and extended play. If you experience a ringing in your
ears, reduce the volume or discontinue use. Do not use earmuffs while driving or in any situation
where hearing must not be impaired.
Customer Service
Your NoiseBusterANR Earmuff has been manufactured to exacting specifications and carefully
checked for any possible operational malfunctions. Occasionally, however, technical service, repair
or replacement parts may be required. In the unlikely event that such a situation occurs, please
email us at customerservice@noisebuster.net or call 1-203-210-7230 for information and advice.
Frequency, Hz 125 250 500 1000 2000 3150 4000 6300 8000
Mean Value, dB 17.5 22.3 30.6 37.3 34.7 40.2 44.6 43.7 44.9
Std. Deviation 3.1 2.4 2.5 2.7 2.6 2.9 2.4 2.4 3.54.9
NRR CSA
26 A PLUS
UP TO 20 dB
ANR
PLUS
UP TO 20 dB
ANR
Frequency, Hz 125 250 500 1000 2000 4000 8000
Mean Value, dB 16.6 21.7 28.4 35.1 31.7 39.7 40.7
Std. Deviation 3.9 3.1 4.1 4.1 3.2 4.6 5.1
Mean-Std. Deviation 12.7 18.6 24.3 31.0 28.5 35.1 35.6
SLC(80)
29.2
Class 5
Passive Attenuation
Passive Attenuation
Fig. 1 Fig. 2 Fig. 3
