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Univox® PLS-X1, X3, X5

Induction Loop Drivers 

Installation Guide

Univox®  PLS-X1   Part No 217100
Univox®  PLS-X3   Part No 217300
Univox®  PLS-X5   Part No 217500

Summary of Contents for 217100

Page 1: ...1 Univox PLS X1 X3 X5 Induction Loop Drivers Installation Guide Univox PLS X1 Part No 217100 Univox PLS X3 Part No 217300 Univox PLS X5 Part No 217500 ...

Page 2: ...peaker Connector screw 1 2 9 14 Auxiliary DC Power Output screw 3 9 15 Remote Input Monitor Connector screw 4 5 9 16 Remote Output Monitor Connector screw 5 6 10 17 Monitor Volume Control 10 18 Input Power Amplifier In Pow Amp 10 19 Output Pre amplifier Out Pre Amp 10 20 Input 3 11 21 Input 2 11 22 Speech Enhancement Flat Speech DIP Switch 1 11 23 50 100 V Line DIP Switch 2 3 11 24 Override On Off...

Page 3: ...setting 18 MLC function in maximum position 18 Commissioning and certification 18 Default Settings 19 Rear panel 19 Front panel 19 Trouble shooting 20 Technical Specification 22 Audio Input 1 22 Audio Input 2 22 Input 3 22 In Pow Amp 23 Out Pre Amp 23 Loop output 23 Supplementary Outputs 23 Safety 24 Warranty 24 Maintenance and care 25 Service 25 Technical data 25 Environment 25 Measuring devices ...

Page 4: ... loop and speaker amplifier monitor With LED indicators for input and output levels optimizing system performance is simple The PLS X Series is integrated into Univox Loop Designer a free web based project planning and design software enabling fast and accurate configuration of induction loop systems Please read this user guide carefully before installation and usage of this product All Univox loo...

Page 5: ...tput screw 3 15 Remote input monitor connector screw 4 5 16 Remote output monitor connector screw 5 6 17 Monitor volume control 18 Direct connection to loop power amplifier In Pow Amp 19 Pre amplifier output Out Pre Amp 20 Input 3 Phoenix screw terminal RCA 21 Input 2 Phoenix screw terminal 22 Speech enhancement DIP switch Flat Speech 23 50 100 V line DIP switch On Off 24 Override DIP switch On Of...

Page 6: ...ator should flicker occasionally 3 4 Parametric MLC The parametric metal loss control function enables system frequency response correction in cases where the signal strength is strongly influenced by the surrounding metal By selecting an appropriate parametric curve the installer can fine tune the frequency response compensating for the effects of different metal types and configurations Four opt...

Page 7: ...utput LEDs do not flash check that the loop is connected and not open circuit Also check the proper connection of the signal source If only the input LEDs flash and the loop is properly connected the output current is set too low Increase the output current 6 Loop current control The loop current can be adjusted by turning the loop current control 6 potentiometer 7 Loop current LEDs The current ou...

Page 8: ...A 2 turn loop will have an impedance more than double that of a single turn loop of the same length and cross section due to mutual inductance Strong compensation from the parametric MLC control is applied Note In some cases metal reinforcement can actually reduce the voltage requirement 9 Loop monitor headphones socket Univox PLS X series has a powerful speaker amplifier and a 3 5mm headphone soc...

Page 9: ...rating of the supply is dependent on the model Only Univox approved power supplies correctly rated for the loop driver model should be used The use of incorrectly rated or third party power supplies will invalidate your 5 year warranty 13 Monitor speaker connector screw 1 2 A monitor speaker may be permanently connected providing some sound reinforcement in smaller rooms In this case care needs to...

Page 10: ...direct control of frequency distribution and dynamic Input sensitivity 0dBu 0 775V 10kOhm Note 1 The loop amplifier s other inputs In1 In3 can be used simultaneously Note 2 This input lacks the 5kHz lowpass filter and is unballaned Input impedance 10kOhm 19 Pre amplifier output Out Pre Amp This output delivers an output signal after adjustment of input level filter and AGC fun ctions Typical conne...

Page 11: ... connected to or and the earth connection Stereo signals are connected to and and the earth connection 22 Speech enhancement Flat Speech DIP switch 1 The speech enhancement function works by filtering low frequencies 150Hz which can mask the intelligible sound It is recommended to use this function for all normal loop systems With the DIP switch in the down position speech enhancement is OFF With ...

Page 12: ...out phantom power The sensitivity is adjusted using the control on the front panel Note If connecting an unbalanced signal not recommended the pin that is not used has to be connected to pin 1 earth 26 Speech enhancement Flat Speech DIP switch 1 The speech enhancement function works by filtering low frequencies 150Hz which can mask the intelligible sound through the so called masqing effect It is ...

Page 13: ...phantom power With the DIP switch in the down position phantom power is turned ON With the DIP switch in the up position phantom power is turned OFF The phantom power or bias voltage is approximately 12V some variation occurs depending on the loop driver model Note 1 Phantom Power should only be turned on when an electret microphone is connected to the amplifier Note 2 Before connection of an elec...

Page 14: ...crimping tool double sided adhesive tape printed warning tape General audio installation tools e g Ohm meter Field strength meter e g Univox FSM 2 0 Listening device e g Univox Listener Loop cable Always install a twin core loop cable to secure necessary connection options especially vital in environments with uneven metal loss Univox twin core copper tape gives top efficiency with low induction l...

Page 15: ...60118 4 Placement of the driver The Univox PLS X loop drivers will not generate much excessive heat and can be mounted in 19 racks on top of or below other rack components check that these don t generate excessive heat on a wall or another flat surface In a rack system it is often practical to attach the external power supply to the supporting metallic construction using straps For mounting on the...

Page 16: ...es not indicate 7 Adjust the loop current output level 6 Output level bar graph 7 indicates 1 2 3 or 4 depending on the adjusted current level 8 Set the current level to achive a field strength of approximately 3dB in the center of the loop 9 Basic function of the loop system is now verified Turn System Diagnostics off by sliding the switch to the left Input connection and adjustments 10 Set all l...

Page 17: ...eak Note 2 When adjusting the field strength peaks 2dB field strength works best due to different dynamic headrooms in hearing aids 15 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 16 Check the sound quality by using an external listening device Listener or FSM 2 0 Monitor speaker conn...

Page 18: ...put on some loop types the automatic limit protection circuit may cut programme peaks To rectify reduce the loop current accordingly MLC function in maximum position 0 dB 5 dB 10 dB 15 dB 100 1 kHz 10 kHz 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 an...

Page 19: ...e set to minimum turned fully anti clockwise System Diagnostic Off switch in left position Parametric MLC 2kHz switch in right position level control in min position Turn clockwise to change line level is selected 100V line off Note To listen to the sound quality use high quality headphones with the FSM 2 0 or Univox Listener loop receiver The Monitor Output socket is a direct reflection of the lo...

Page 20: ... power LED is on No input signal Input signal set too low Check if input signal is present Adjust level of input signal Audio quality is poor peak LED indicates Malfunction loop cable Loop impedance is too high Loop current set too high Parametric 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 ...

Page 21: ...er on Increase input level reduce speaking 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 requir...

Page 22: ...N filter 110 170Hz Audio Input 2 Connection Type Phoenix screw terminal Level Switchable between 50 100V line and Line levels 50 100V Line DIP switches 2 and 3 down Line DIP switches 2 and 3 up Balanced line sensitivity 140mV 8 3V 15dBu to 20 6dBu Override Suppresses Inputs 1 and 2 and gives priority to Input 3 for use with voice alarms or other audio DIP switch 4 down ON DIP switch 4 up OFF Speec...

Page 23: ...ring a 2 turn loop with twin core cable see page 17 PLS X1 PLS X3 PLS X5 Max Voltage 22 Vpp 31 Vpp 36 5 Vpp Max Current 4 7 A RMS 6 5 A RMS 9 5 A RMS Supplementary Outputs Connection Type Phoenix screw terminal 6 connections Connection Type Function Specification 1 Audio output Monitor speaker 10 W IC power chip 4 32 Ω 2 Ground Ground Ground 3 DC power supply Auxiliary power supply 19 36 V 100 mA ...

Page 24: ... such as vases shall be placed on or close to the product Do not remove any covers as there is a risk of electric shock Please observe that the product warranty doesn t 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 inciden...

Page 25: ...for service you will need a Service Number from your distributor They will also send you a Service Report Form which must be completed and returned with the product Technical data For additional information please refer to product data sheet brochure and CE certificate which can be downloaded from www univox eu products If required other technical documents can be ordered from support edin se Envi...

Page 26: ...2 0 Field Strength Meter Instrument for the professional measurement and certification of loop systems in accordance with IEC 60118 4 Univox Listener Loop receiver for fast and simple check of the sound quality and basic level control of the loop ...

Page 27: ..._________________________________________ _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ ______________________________________...

Page 28: ...mphasis on research and development we have continued to innovate to deliver more firsts in the industry constantly improving the performance of our products and service for hard of hearing communities worldwide Hearing excellence since 1965 Bo Edin AB Sweden and International Sales 46 0 8 767 18 18 info edin se www univox eu UnivoxAudio Ltd UK Sales 44 0 1707 339216 writeto univoxaudio co uk www ...

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