RADIOEAR AP70 User manual
Instructions for Use - GB
Stereo Amplifier AP70
Table of Contents
1. INTRODUCTION ............................................................................................................................1
1.1 ABOUT THIS MANUAL ............................................................................................................................ 1
2. UNPACKING/INSPECTION ...........................................................................................................3
2.1 UNPACKING AND INSPECTION................................................................................................................... 3
2.2 REPORTING IMPERFECTIONS .................................................................................................................... 3
2.3 SAFETY REGULATIONS............................................................................................................................. 3
2.4 LIST OF SYMBOLS................................................................................................................................... 5
3. OPERATION INSTRUCTION.........................................................................................................7
3.1 CONNECTION PANEL DIRECTORY .............................................................................................................. 7
3.2 AP70 -CONNECTION PANEL DICTIONARY .................................................................................................. 7
3.3 AP70 -OPERATION PANEL DICTIONARY .................................................................................................... 7
3.4 SETUP INSTRUCTION............................................................................................................................... 8
4. MAINTENANCE ...........................................................................................................................11
4.1 GENERAL MAINTENANCE PROCEDURES.................................................................................................... 11
4.2 HOW TO CLEAN RADIOEAR PRODUCTS ..................................................................................................... 11
4.3 CONCERNING REPAIR ........................................................................................................................... 11
4.4 WARRANTY ........................................................................................................................................ 12
5. TECHNICAL SPECIFICATIONS ..................................................................................................13
5.1 PIN ASSIGNMENT ................................................................................................................................ 14
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1. Introduction
1.1 About this Manual
This manual is valid for the AP70. The product is manufactured by:
Radioear A/S
Audiometer Allé 1
5500 Middelfart
Denmark
Tel.: +45 6371 3555
Fax: +45 6371 3522
E-mail: info@Radioear.com
Web: www.Radioear.com
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2. Unpacking/Inspection
2.1 Unpacking and inspection
Check Box and Contents for Damage
When the unit is received please check the shipping box for any rough handling or damage. If the box is damaged it should
be kept until the contents of the shipment have been checked mechanically and electrically. If the device is faulty, please
contact the nearest service office. Keep the shipping material for the carrier’s inspection and insurance claim.
Store Carton for future Shipment
The unit comes in its own shipping carton which is specially designed for it. Please store this carton; it will be needed if the
device has to be returned for service. If service is required please contact your nearest sales and service office.
Contents of Shipment
As standard, this unit is delivered with the following:
Reporting Imperfections:
Inspect before connection:
Prior to connecting the device to the Power Supply it should be inspected once more for damage. All of the cabinet and the
accessories should be checked visually for scratches and missing parts.
Report any faults immediately:
Any missing part or malfunction should be reported immediately to the supplier of the unit together with the invoice, serial
number and detailed report of the problem. In the back of this manual a “Return Report” can be found, where you can
describe the problem.
Please use “Return Report”:
Please realize that if the service engineer does not know what the problem is to look for, he may not find it. Therefore using
the Return Record will be of great help to us and at the same time it is guaranteed that the correction to your problem will be
to satisfaction.
2.2 Imprtant Safety Instructions
Read these instructions
This device is specified to comply with the international standard IEC 60065
To avoid the risk of electric shock, this equipment must only be connected to a supply main with protective
earth."
1) Read these instructions.
2) Keep these instructions.
3) Heed all warnings.
4) Follow all instructions.
5) Do not use this apparatus near water.
6) Clean only with dry cloth.
7) Do not block any ventilation openings. Install in accordance with the manufacturer’s
instructions.
8) Do not install near any heat sources such as radiators, heat registers, stoves, or other
apparatus (including amplifiers) that produce heat.
Included parts
Mains Cable ID numbers!
Input cables
Speaker cables
Remote cable
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9) Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug
has two blades with one wider than the other. A grounding type plug has two blades and a third
grounding prong. The wide blade or the third prong are provided for your safety. If the provided
plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
10) Protect the power cord from being walked on or pinched particularly at plugs, convenience
receptacles, and the point where they exit from the apparatus.
11) Only use attachments/accessories specified by the manufacturer.
12) se only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold
with the apparatus. When a cart is used, use caution when moving the cart/apparatus
combination to avoid injury from tip-over.
13) Unplug this apparatus during lightning storms or when unused for long periods of time.
14) Refer all servicing to qualified service personnel. Servicing is required when the apparatus
has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been
spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or
moisture, does not operate normally, or has been dropped
NOTE: The mains plug is intended to disconnect the device from mains
NOTE. This amplifier is designed to fulfill the requirements of the medical standard IEC/ES 60601-1 when connected to
medical equipment. That means it can be connected to an audiometer without further electrical protection or isolation.
No modification of this equipment is allowed without Radioear authorization.
Radioear will make available on request circuit diagrams, component part lists, descriptions, calibration instructions, or other
information that will assist service personnel to repair those parts of this equipment that are designated by the Radioear as
repairable by service personnel.
The apparatus shall not be exposed to dripping or splashing and that no objects filled with liquids, such as vases, shall be
placed on the apparatus.
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2.3 List of Symbols
Symbol
Explanation
Refer to instruction manual
WEEE Declaration
This symbol indicates that when the end-user wishes to discard this product, it must be sent to
separate collection facilities for recovery and recycling.
Within the European Union it is illegal to dispose electric and electronic waste as unsorted
municipal waste. Electric and electronic waste may contain hazardous substances and
therefore has to be collected separately. Such products will be marked with the crossed-out
wheeled bin shown below. The cooperation of the user is important in order to ensure a high
level of reuse and recycling of electric and electronic waste. Failing to recycle such waste
products in an appropriate way may endanger the environment and consequently the health of
human being
This device complies to:
RoHS Directive (2011/65/EU)
WEEE Directive (2002/96/EC)
The CE Marking ideclares that the product complies with the essential requirements of the
relevant European health, safety and environmental protection legislation.
This device conforms to:
EMC Directive (2004/108/EC)
Low Voltage Directive (2006/95/EC)
Year of manufacture
Presence of uninsulated dangerous voltage inside the
device.
Never open the device as there is a risk of electrical
shock. There are no user serviceable parts inside.
Refer any service to authorized RadioEar service
partner.
Read and follow the safety and operating instructions
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3. Operation Instruction
3.1 Connection Panel Directory
3.2 AP70 - Connection Panel Dictionary
Position:
Symbol:
Function:
1
Out
Plug for speaker CH1
2
Out
Plug for speaker CH2
3
In
Plug for input signal CH1
4
In
Plug for input signal CH 2
5
Pre-set
Input sensitivity adjustment for CH1
6
Pre-set
Input sensitivity adjustment for CH 2
7
Remote
Input
8
Remote
Remote power on Controlled / Normal mode
9
Power
Plug for Remote power on
10
Ground terminal for setup calibration
Input Level
The input sensitivity for CH1 and CH2 are controlled by the buttons (5) and (6) “Preset” on the connection panel. Do
not adjust the buttons (5) and (6) when the system is calibrated.
Remote power on
The amplifier can be switched on and off remotely. In the position “Normal mode” (8) can only be switched on and off
by the Main switch (10). In the position “Remote controlled” the amplifier can be turned on by applying 5VDC at the
Remote plug (9), 0VDC will turn of the amplifier.
3.3 AP70 - Operation Panel Dictionary
Position:
Symbol:
Function:
10
Power
Mains power switch
11
Overload / Over temperature indicator
12
Power
Power indicator
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Indicator guide
3.4 Setup instruction
1. Connect the amplifier to the audiometer with the RCA-XLR cable
2. Connect the audiometer’s and the amplifier’s power plugs to a power socket with ground connection
3. Adjust the audiometer to maximum unclipping output
4. Connect the one speaker plug into the amplifier (without speaker)
5. Connect an oscilloscope in AC-mode at the one pole at CH 2 speaker cable output.
The measurement of the output must be made between the GND-point and the one pole at the speaker connector,
as shown below.
Do not connect the GND alligator test lead of the oscilloscope to the output of the amplifier, only to the GND
terminal at the amplifier.
Indicator
Information
Action
Power
Normal mode
Power
Speaker protection
Lower the input level
Over heat
Turn off the amplifier, let it cool down and turn it on
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6. Adjust the Input preset 2 clockwise to just below the clipping limit.
7. Repeat point 4. & 5. at CH1
8. Turn off the audiometer and amplifier
9. Connect the speakers and calibrate the system according to the audiometer’s instruction
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4. Maintenance
4.1 General Maintenance Procedures
The performance and safety of the instrument will be kept if the following recommendations for care and maintenance are
observed:
•The instrument must go through at least one annual overhaul, to ensure that the acoustical, electrical and
mechanical properties are correct. This should be made by an authorised workshop in order to guaranty proper
service and repair as Radioear provides the necessary circuit diagrams etc. to these repair shops.
•To ensure that the reliability of the instrument is kept, it is recommended that the operator at short intervals, for
instance once a day, perform a test on a person with known data. This person could be the operator him/herself.
•After each examination of a patient, it should be ensured that there is no contamination on the parts in connection
with the patient. General precautions must be observed in order to avoid that disease from one patient is
conducted to others. If ear cushions or ear tips are contaminated, it is strongly recommended to remove them from
the transducer before they are cleaned. By frequent cleaning water should be used, but by severe contamination it
may be necessary to use a disinfectant. The use of organic solvents and aromatic oils must be avoided.
4.2 How to clean Radioear products
•Before cleaning always switch off and disconnect from the power supply
•Use a soft cloth lightly dampened with cleaning solution to clean all exposed surfaces
•Do not allow liquid to come in contact with the metal parts inside the earphones / headphones
•Do not autoclave, sterilize or immerse the instrument or accessory in any fluid
•Do not use hard or pointed objects to clean any part of the instrument or accessory
•Do not let parts that have been in contact with fluids dry before cleaning
•Rubber ear-tips or foam ear-tips are single use components
•Ensure that isopropyl alcohol does not come into contact with any screens on the instruments
•Ensure that isopropyl alcohol does not come into contact with any silicone tubes or rubber parts
Recommended cleaning and disinfection solutions:
•Warm water with mild, nonabrasive cleaning solution (soap)
•Normal hospital bactericides
•70% isopropyl alcohol only on hard cover surfaces
Procedure
•Clean the instrument by wiping outer case with a lint free cloth lightly dampened in cleaning solution.
•Clean cushions and patient hand switch and other parts with a lint free cloth lightly dampened in cleaning solution.
•Make sure not to get moisture in the speaker portion of the earphones and similar parts
4.3 Concerning Repair
Radioear is only considered to be responsible for the validity of the CE marking, effects on safety, reliability and performance
of the equipment if:
1. assembly operations, extensions, readjustments, modifications or repairs are carried out by authorised persons,
2. a 1 year service interval is maintained
3. the electrical installation of the relevant room complies with the appropriate requirements, and
4. the equipment is used by authorised personnel in accordance with the documentation supplied by Radioear.
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It is important that the customer (agent) fills out the RETURN REPORT every time a problem arises and sends it to
Radioear, This should also be done every time an instrument is returned to Radioear. (This of course also applies in the
unthinkable worst case of death or serious deterioration to patient or user).
4.4 Warranty
RADIOEAR warrants that:
•This product is free from defects in material and workmanship under normal use and service for a period of 24
months from the date of delivery by Radioear to the first purchaser.
•Accessories are free from defects in material and workmanship under normal use and service for a period of
ninety (90) days from the date of delivery by Radioear to the first purchaser.
If any product requires service during the applicable warranty period, the purchaser should communicate directly with the
local Radioear service centre to determine the appropriate repair facility. Repair or replacement will be carried out at
Radioear’ expense, subject to the terms of this warranty. The product requiring service should be returned promptly, properly
packed, and postage prepaid. Loss or damage in return shipment to Radioear shall be at purchaser's risk.
In no event shall Radioear be liable for any incidental, indirect or consequential damages in connection with the purchase or
use of any Radioear product.
This shall apply solely to the original purchaser. This warranty shall not apply to any subsequent owner or holder of the
product. Furthermore, this warranty shall not apply to, and Radioear shall not be responsible for, any loss arising in
connection with the purchase or use of any Radioear product that has been:
•repaired by anyone other than an authorized Radioear service representative;
•altered in any way so as, in Radioear judgement, to affect its stability or reliability;
•subject to misuse or negligence or accident, or which has had the serial or lot number altered, effaced or
removed; or
•improperly maintained or used in any manner other than in accordance with the instructions furnished by
Radioear.
This warranty is in lieu of all other warranties, express or implied, and of all other obligations or liabilities of Radioear, and
Radioear does not give or grant, directly or indirectly, the authority to any representative or other person to assume on behalf
of Radioear any other liability in connection with the sale of Radioear products.
RADIOEAR DISCLAIMS ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING ANY WARRANTY OF
MERCHANTABILITY OR FOR FUNCTION OF FITNESS FOR A PARTICULAR PURPOSE OR APPLICATION
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5. Technical Specifications
Standards:
Safety IEC60065:2002, UL60065:2007, CAN/CSA C22.2 No.60065:03, CLASS I
EMC CISPR11, EN/IEC61000-4-2
Mains nominal input voltage:
100 - 240V~
Mains frequency:
50 - 60Hz
Consumption (Nominal):
200 Watt
Fuse:
1 x 6,3AT Located on the main PCB
Output Overload Protection:
Short circuit protected.
Output Power, one channel alone:
110WRMS continues for 10 minutes at 8Ω.
140WRMS continues for 10 minutes at 4Ω.
Output Power, both channels active:
2x70WRMS continues for 10 minutes at 8Ω.
2x70 WRMS continues for 10 minutes at 4Ω. (2x100W in 4Ω<10s)
Input:
Balanced and isolated
Input impedance: 2kΩ
Max sensitivity:0.3VRMS for max output, with adjustable with pre-set potentiometers.
Max input voltage: 7VRMS
Frequency Range:
20-20.000 Hz ± 3dB with 8Ωload.
Noise:
>98dB signal/noise ratio, A-weighted measured.
Channel Separation:
Typical > 60dB undistorted output on opposite channel.
Total Harmonic Distortion:
< 0.2 % @ 70W..
Dimensions (W x D x H):
40 x 21.5 x 8.2 cm / 15.8 x 8.5 x 3.2 inches
Weight:
3.9kg / 8.6lb
Environment:
Operation Temperature: 15 - 35°C
Operation Humidity: 30 - 90% RH, Non-condensing
Transportation and storage of this unit should be within the following environmental conditions:
Transportation: -20° to 50°C
Storage: 0° to 50°C
Humidity: 10 - 95% RH, Non-condensing. Keep dry.
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5.1 Pin Assignment
Socket Connector Pin 1 Pin 2 Pin 3
Mains
Live Neutral Earth
IEC C13
Speakers 1
Signal (1+) Signal (1-) -
Speakers 2 SpeakON 2 pol
Input 1
or
- Signal (+) Signal (-)
Input 2 Signal (-) - Signal (+)
XLR / 6.3mm Jack
Remote Ground - Remote signal
(5 VDC)
3.5mm Jack
Input & Remote: Mono versions of the jack plugs can be used without problems.
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