background image

Test kit contents

 

•  HLS-2D loop driver

 

•  12V DC power supply

 

•   2 x 4mm connector plugs for the loop cable 

              (cable not supplied)
 

•  3.5mm audio cable 

1.

 Separate indication for power, input signal and  

     loop current

 

2.

 Loop output connectors using standard 4mm  

    banana plug test sockets

3. 

12V DC power input, 2.1mm centre positive

4.

 Audio input, 3.5mm stereo jack

 

 
Additional equipment required

 

•  R1 Receiver with iOS Device and Loopworks app or FSM with test record sheet

 

•  Signal source - mobile phone, MP3 player or signal generator, with Ampetronic test tones

 

•  Loop cable - 25 to 30m (80-100ft) of 1.5mm

2

 (AWG 16) single core wire fitted with supplied  

 

   connectors

 

•  Tape measure

 
Test signals and record sheet template available from www.ampetronic.com/signals

Optional equipment

 

•  True RMS multimeter to monitor output current

 

•  Additional short link cable (2x4mm connectors) if multimeter is used

 

•  12 volt battery (a fully charged 12 volt 4800mAH battery will give approximately 8 hours of  

 

    testing time)

Document outline

Determining metal loss and background noise levels are important steps in designing a proper 

hearing loop system that meets the IEC 60118-4 international standard. 
This test procedure uses the HLS-2D loop driver which is mounted in a compact rugged case and 

pre-set to simplify and reduce set-up and testing time.
The document will guide you through the metal loss and background noise testing process utilising 

either the R1 Loopworks Measure Receiver, or the FSM (field strength meter).

 

 

BB77920-3

HLS-2D Metal Loss Test Procedure

Page 1

Содержание HLS-2D

Страница 1: ...HLS 2D Metal Loss Test Procedure www ampetronic com...

Страница 2: ...and record sheet template available from www ampetronic com signals Optional equipment True RMS multimeter to monitor output current Additional short link cable 2x4mm connectors if multimeter is used...

Страница 3: ...will correct this There is no restriction on the width of the test loop below 15m 50ft and the designed loop width is likely to be dictated by installation practicalities e g aisle placement Technica...

Страница 4: ...it settles Signal level test set up and test positions Set the signal input to sinewave or combination and turn up the volume of the signal input until the input LED lights light up on the driver NOTE...

Страница 5: ...seconds as the circuit settles Signal level test set up and test positions Set the signal input to sinewave or combination and turn up the volume of the signal input until the input LED lights light u...

Страница 6: ...her follow the interpreting results section or send it to Ampetronic or your local distributor for analysis Define test points Start Test Start Site Assessment Test then name session Fill in test loop...

Страница 7: ...put signal to pink noise Step 5 Switch the meter mode to Frequency Response Step 6 Select the 100Hz band and record the signal level as shown on the white scale switch to 1kHz and repeat then to the 5...

Страница 8: ...op segment widths on the design match your test loop size your test result can be entered into the Use manual loss figure field on Inputs Design to specify the most suitable amplifier Interpreting fre...

Страница 9: ...ufactured to the following specifications LVD Safety Standard EN 60065 2014 Audio video and similar electronic apparatus Safety requirements A11 2017 RED Standard ETSI EN 303 348 Induction loop system...

Страница 10: ...www ampetronic com Ampetronic Ltd Tel 44 0 1636 610062 Email sales ampetronic com UP17940 3...

Отзывы: