Univox SLS-1 Installation Manual Download Page 9

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Metallic

environment

Basic level

(1000Hz)

IEC level

(1600Hz)

Field

Strength

Attenuation

Important notes/requirements

No metal

22m/70ft

Standard

reinforced

concrete

7m/23ft

5m/16ft

3�5-6dB

Increased current, voltage and

power

Heavily

reinforced

concrete

5m/16ft

4m/13ft

3�5-6dB

Increased current, voltage and

power

Suspended

ceiling

4�8m/16ft

3,6m/12ft

4-10 dB

Conductor must be centered in the

suspended ceiling framwork (longest

distance to metal)

Increased current

Steel deck/

Metal system

floor

4m/13ft

3m/10ft

6-10dB

Increased current

Iron bar

construction

3m/10ft

2m/6�5ft

4-12dB

Medium/strong damping, depending

on placement of wire (avoid

placement along metal bars)

Maximum recommended segment size (to comply with IEC 60118-4)

Placement of the microphones

Microphone placement and proximity between microphone and mouth is crucial for improved

speech intelligibility� Use shortest distance possible between microphone and mouth/sound

source�

Commissioning and certification

It’s important to check the system when the installation is completed� To ensure that the

loop installation meets the requirements for field strength, consistency and frequency

response, it must comply with the international standard IEC 60118-4�
A guide how to commission a loop system to the IEC performance standard, can be found

in the user guide for the Univox FSM 2�0 field strength meter and in the Univox®

Certificate

of Conformity

� These documents are also available on www�univox�eu/certify�

Summary of Contents for SLS-1

Page 1: ...Installation Guide Univox SLS 1 3 5 Class D Tech Series State of the art phased array loop drivers Univox SLS 1 part no 221000 Univox SLS 3 part no 223000 Univox SLS 5 part no 225000 ...

Page 2: ...9 System setup 10 Start up procedure 10 Input connection and adjustments 10 Output connection and adjustments 10 Metal Loss Correction frequency setting 12 MLC function in maximum position 13 Trouble shooting 12 Safety 14 Warranty 14 Maintenance and care 14 Service 15 Technical data 15 Environment 15 Measuring devices 15 Univox FSM 2 0 Field Strength Meter 15 Univox Listener testing device 15 The ...

Page 3: ...power Each offers 3 inputs 2 of which are programmable including a 100V line input with priority option a self test mode loop monitor and monitor speaker power driver With LED indicators for input and output levels optimizing the system performance is easy SLS systems SLS systems consist of two different loop systems together creating a more controlled field strength distribution with less overspi...

Page 4: ...7 6 7 6 8 8 11 12 11 DC supply input 12 Master Slave loop connector 13 Monitor volume control for both headphones and speaker output A MISCELLANEOUS OUTPUTS 14 Monitor speaker connector 15 Auxiliary DC power output 16 Remote input monitor connector 17 Remote output monitor connector B INPUT 3 18 Phoenix screw terminal 19 Unbalanced RCA Connections and controls Overview ...

Page 5: ...D 9 10 13 A B C D 27 26 25 24 22 21 20 19 18 17 16 15 14 23 C INPUT 2 20 Speech enhancement switch Flat Speech 21 50 100 V Line switches On Off 22 Override switch On Off Input 3 23 Phoenix screw terminal D INPUT 1 24 Speech enhancement switch Flat Speech 25 Line Mic sensitivity switches 26 Phantom power voltage switch On Off 27 Balanced XLR _ T ...

Page 6: ...tes the level of the loop current not the field strength The field strength is measured using a Field Strength Meter like Univox FSM 2 0 8 Peak clip LEDs illuminate when there is insufficient voltage to maintain a constant loop current Momentary short term voltage clipping is unlikely to be audible in hearing aids but if clipping occurs for any length of time the Peak LED remains on the audio qual...

Page 7: ...th level and frequency response this feature must be switched to Flat postition 21 Speaker 50 100V balanced Line sensitivity On Off Caution 50 100 V Line must be set prior to any further settings 22 Override Priority function mutes inputs and is typically used for voice alarm systems Signals higher than 6dB on input 2 activates the priority function 23 Balanced Line 15dBu 50mVrms to 20 6dBu 8 3Vrm...

Page 8: ...rnate between single double and twin turn loop connections Use a feed cable twisted or twin wire between the junction box and the loop driver as well as between the loop figuration and the junction box or loop driver Placement of the driver The Univox SLS 1 SLS 3 and SLS 5 loop drivers will not generate any excessive heat and can be mounted in 19 racks on top of or below other rack components chec...

Page 9: ... wire avoid placement along metal bars Maximum recommended segment size to comply with IEC 60118 4 Placement of the microphones Microphone placement and proximity between microphone and mouth is crucial for improved speech intelligibility Use shortest distance possible between microphone and mouth sound source Commissioning and certification It s important to check the system when the installation...

Page 10: ...ld strength for all loop segments using a field strength meter e g FSM 2 0 Verify low field strength directly above wires and high in between segments peaks to approximately 2dB If not there might be a local short circuit between wires 8 Disconnect Master loop and connect Slave loop 12 Repeat the procedure for Slave loop 9 Basic function of the loop system is now verified Turn System Diagnostics o...

Page 11: ...rength peaks 2dB field strength works best due to different dynamic headrooms in hearing aids 16 Check basic frequency response according to IEC 60118 4 using a field strength meter e g FSM 2 0 If necessary follow Frequency adjustment procedure see page 12 17 Check the sound quality by using an external listening device Listener or FSM 2 0 Monitor speaker connector 14 or Monitor 9 for headphone vo...

Page 12: ...MLC set too high Rerun start up procedure page 10 Change the loop use twin cores in parallel or use a cable with higher cross section Turn loop current down Turn down Parametric MLC Audio quality is poor peak LED is off sound quality using headphone monitor is also poor Input signal set too high Audio source is of poor quality Reduce input signal level and check Line Mic level setting Change adjus...

Page 13: ...aking distance Use valid microphone or connect a microphone mixer amplifier Exchange faulty part Alarm priority signal is not clear Override DIL switch not set to allow this function Set DIL switch to correct position Cannot achieve required frequency response at 100 Hz Speech enhancement filter turned on Turn speech enhancement filter off Cannot achieve required frequency response at 5 kHz Parame...

Page 14: ...cing to qualified personnel Please observe that the product warranty does not include faults caused by tampering with the product carelessness incorrect connection mounting or maintenance Bo Edin AB shall not be held responsible or liable for interference to radio or TV equipment and or to any direct incidental or consequential damages or losses to any person or entity if the equipment has been in...

Page 15: ...ease refer to product data sheet and CE certificate which can be downloaded from www univox eu products If required other technical documents can be ordered from support edin se Environment To prevent possible harm to the environment and human health please dispose of the product responsibly by following statutory disposal regulations Measuring devices Univox FSM 2 0 Field Strength Meter Professio...

Page 16: ...Hearing excellence since 1965 Univox Bo Edin AB Stockby Hantverksby 3 SE 181 75 Lidingö Sweden 46 0 8 767 18 18 info edin se www univox eu sls 1 3 5 ig gb 170220 Copyright Bo Edin AB ...

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