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BM-SCAN - 

Magnetic field strenght meter

Page  10

English

1 - Role of the measurer

2 - Measurer Operation

The field measurer has been designed to ensure that magnetic loop systems are installed and 
certified according to the new IEC 60118-4 standard.  When these standards are respected, 
the comfort of the user will be identical wherever he is using his prosthesis equipped with the 
T position.

The BM-SCAN makes it possible to commission an installation and certify its conformity.
To do so, please follow the procedure for receiving the magnetic loops in the appendix.
You can then complete the certificate of compliance.

ON

 - Press and hold button A until the display lights up 

Off

 - Press and hold button A until the unit turns off   

When the process is finished the screen turns black

1 -  In modes 1 - 3 press button "B" to reset the measurements
2 -  In mode 4, press button "B" to advance the frequency by third octaves

When you press the "A" key, it first displays the "BackGround Noise" mode, you must press the 
button again to switch to the next mode:

1 -   

"BackGround Noise"

 magnetic pollution test

2 -   

"RMS / Peak"

 signal measurement

3 -   

"Field Strength"

 magnetic field measurement

4 -   

"Third Octave"

 Level Measurement

2-1 Switching the field measurer on/off

2-2 Mode selection

2-3 Button "B" function

Summary of Contents for BM-SCAN

Page 1: ...USER GUIDE H10878 Version 1 03 2018 Magnetic field strenght meter BM SCAN...

Page 2: ...magnetic loops in the appendix You can then complete the certificate of compliance ON Press and hold button A until the display lights up Off Press and hold button A until the unit turns off When the...

Page 3: ...display will show the RMS value on the first line and the MAX value on the second line Press button B to reset the MAX measurement Location of the receiver coil A button M A and control mode button M...

Page 4: ...standard revised in 2004 notes that any background noise level below 47dBA will result in excellent signal noise but levels below 32dBA are acceptable and meet the requirements of the standard If the...

Page 5: ...average signal levels average is de 12dB or 100ma m for hearing instruments equipped with the T position The methods below are two processes that can be used to confirm that the system correctly repro...

Page 6: ...ck First it can be used to monitor the loop program and gives you a weighted output signal that can be heard with standard headphones To change the headphone volume drag the Use Menu button to Menu an...

Page 7: ...scroll through the different modes until you see Line In Flat Response on the screen Measuring range 62dB to 9dB 0dB 400mA m Peak factor 3 Resolution 0 1dB resolution for higher levels 32dB Measuremen...

Page 8: ...es that the sound intensity is sufficient the responses frequency control ensure that the entire sound spectrum is perceived in the same way and the signal to noise ratio measures the impact of interf...

Page 9: ...2 Customer Installer quipement Location Room Serial N Comments I declare that the installation complies with the IEC 60118 4 standard Installer s signature Date 7 Existence of other systems nearby Ye...

Page 10: ...modifications without prior notice That is why technical specifications and the products physical configuration might differ from the illustrations Make sure you get the latest news and updates about...

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