G.R.A.S. RA0113 User manual

Instruction Manual
RA0113 1’’ 2cc Coupler IEC 60318-5
www.gras.dk
LI0073 – 28 September 2017

Revision History
Revision Date Description
1 28 September 2017 Extracted from Earbook as separate document
Any feedback or questions about this document are welcome at [e-mail].
Copyright Notice
© 2005-17 G.R.A.S. Sound & Vibration A/S
http://www.gras.dk
Any technical documentation that is made available by G.R.A.S. is the copyrighted work of
G.R.A.S. and is owned by G.R.A.S.
The content in this document is subject to change without notice. G.R.A.S. Sound & Vibration A/S
is not liable or responsible for any errors or inaccuracies that may appear in this document.
Trademarks
Any other product names mentioned in this document may be trademarks or registered trade-
marks of their respective companies and are hereby acknowledged.
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Contents
Introduction.................................................................................. 4
Components.............................................................................................. 4
Additional Equipment ................................................................................. 5
User Serviceable Components ..................................................................... 6
Warranty, Service and Repair ........................................................... 7
Calibration................................................................................................. 7
Warranty................................................................................................... 7
Service and Repairs.................................................................................... 7
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Introduction
The RA0113 is a 2cm3IEC 126 coupler which uses a 1” microphone, e.g. the G.R.A.S. 40EN.
The microphone (with its protection grid removed
1) screws into the base of the RA0113. In all
other respects, this Coupler is equivalent to the RA0038.
The RA0113 complies with the following international and national requirements for acoustically
testing insert type hearing aids:
IEC 60318-5 reference coupler for the measurement of hearing aids using earphones cou-
pled to the ear by means of ear inserts (formerly IEC 126 )
ANSI/ASA S3.7-2016 Method for Measurement and Calibration of Earphones
Components
The RA0113 comprises the following user-serviceable components:
GR0722K Coupling Housing
GR0723 Tube Adapter
GR0316 Union nut
The RA0113 is delivered assembled as shown in Fig. 1.
Available Accessories
In addition, the following accessories are available:
RA0114 Adapter for ¼” button type hearing aids
RA0115 Moulding adapter for ITE (In The Ear) hearing aids
RA0116 Adapter for using a ½” microphone, e.g. G.R.A.S. 40AG.
Fig. 2. shows the various ways of assembling the coupler depending on what type of hearing aid
is to be tested, using both included and available accessories.
Note the O-ring (OR5003) in the Coupler housing to ensure snap fitting for each of the hearing-
aid Adapters. This will save time in situations where the Union nut GR0316 is unnecessary
between numerous Adapter changes.
Fig. 1. 2cc Coupler RA0113 assembled as delivered
1A microphone without its protection grid should be handled with the utmost care!
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Additional Equipment
The following equipment is required for connection to external systems:
When using a 1” Microphone
40EN 1” Pressure Microphone (protection grid removed
2)
RA0017 ½” to 1” Adapter (alternatively, the RA0073 Adapter can be used)
26AK ½” Preamplifier
When using a ½” Microphone
40AG ½” Pressure Microphone (protection grid removed
2)
RA0116 1” to ½” Adapter
26AK ½” Preamplifier
Fig. 3 shows an exploded view of the user-serviceable components of the RA0113 as well as
available accessories and additional equipment.
c
ba
OR5003
O-ring to enable
snap fitting for each
Adapter
Fig. 2. Various ways of assembling the RA0113
a) Coupler with Tube Adapter (GR0723, included)
b) Coupler with ¼” Button Adapter (RA0114, available)
c) Coupler with in-ear adapter (RA0115, available)
2A microphone without its protection grid should be handled with the utmost care!
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User Serviceable Components
GR0316
Union nut
GR0723
Tube Adapter
GR0722K
Coupler Housing
RA0115
In-ear Adapter
RA0114
¼"-button
Adapter
RA0116
1" to ½"
Adapter
40AG
½" Microphone
(protection grid
removed
3)
40EN
1" Microphone
(protection grid
removed
3)
RA0017
½" to 1"
Adapter.
Alternatively
RA0073
26AK
½" Preamplifier
RA0113
OR5003
O-ring
OR5389
O-ring
Fig. 3. Exploded view of all the user-serviceable components (in the box above) of the RA0113 Coupler and accessories
3A microphone without its protection grid should be handled with the utmost care!
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Warranty, Service and Repair
Calibration
Before leaving the factory, all G.R.A.S. products are calibrated in a controlled laboratory environ-
ment using traceable calibration equipment.
We recommend a yearly recalibration at minimum, depending on the use, measurement environ-
ment, and internal quality control programs.
We recommend calibration prior to each use to ensure the accuracy of your measurements.
Warranty
Damaged diaphragms in microphones can be replaced. The microphone diaphragm, body, and
improved protection grid are made of high-grade stainless steel, which makes the microphone
resistant to physical damage, as well as corrosion caused by aggressive air or gasses. This,
combined with the reinforced gold-plated microphone terminal which guarantees a highly reli-
able connection,enables G.R.A.S. to offer 5 years warranty against defective materials and
workmanship.
The warranty does not cover products that are damaged due to negligent use, an incorrect power
supply, or an incorrect connection to the equipment.
Service and Repairs
All repairs are made at G.R.A.S. International Support Center located in Denmark. Our Support
Center is equipped with the newest test equipment and staffed with dedicated and highly skilled
engineers. Upon request, we make cost estimates based on fixed repair categories. If a product
covered by warranty is sent for service, it is repaired free of charge, unless the damage is the
result of negligent use or other violations of the warranty. All repairs are delivered with a service
report, as well as an updated calibration chart.
WEEE directive:
2002/96/EC
CE marking directive:
93/68/EEC
Manufactured to conform with:
RoHS directive:
2002/95/EC
G.R.A.S. Sound & Vibration continually strives to improve the quality of our products for our
customers; therefore, the specifications and accessories are subject to change.
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