Field Strength Meter Induction Loop Test Set

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FSM Induction Loop Test Set - Essential for Measurement & Certification of Induction Loop Assistive Listening Systems

The FSM Induction Loop, from Oval Window Audio, is a complete induction loop test set consisting of:

A certified field strength meter
Compact disk recording of test signals
Dual earphones & volume control
Convenient carrying case
Blank certificates of conformity for documenting and certifying induction loop installations

(Click on the photo to view an enlarged image.)

Essential for the measurement and certification of all induction loop assistive listening systems as per IEC 118-4/BS6083 Part 4, the FSM Induction Loop Test Set offers the following:

Measurement range: -39dB to +18dB (0dB = 100mA/m)
LED display with 3dB resolution -- easy to read at a distance!
Both flat and "A" weighted measurement modes
True RMS detection, 125 ms time constant, crest factor >3
CD provides all the high quality test signals required for setting up loop systems and performing the following tests: frequency response, distortion, background noise, speech quality, and signal uniformity measurements.

Technical Standard IEC 118-4 states: The field strength within the loop shall equal 100 mA/m +/- 3dB, with 80 mA/m as a minimum and 140 mA/m as a maximum, intended as the average 1 KHz value of the vertical component of the field strength inside the area enclosed by the loop, measured 1.2 meters above the floor. Allowing for 12 dB peaks occurring in speech, peak field strength may reach 400 mA/m. The frequency response shall be 100 Hz. - 5 KHz. +/- 3 dB.

Every Oval Window Audio induction loop system complies with the Americans with Disabilities Act and Technical Standard IEC 118-4.

Perform Listening Checks On Your Loop System

When possible, a pre-installation listening check should be made before loop installation. Sources of electrical noise interference should be identified and resolved. E-mail Oval Window Audio for more information pertaining to installing and calibrating induction loop systems.

Regularly scheduled listening checks of ALL assistive listening systems are strongly recommended. Ideally, these checks should be performed before each use.

For more technical information and recommendations on IEC 118-4, click here to read our summary article.

Back to Induction Loop Assistive Listening Systems' List, click here.

E-mail Oval Window Audio Today

Each FSM Induction Loop Test Set is individually tested and certified for accuracy before it is shipped to you. If you would like more information, simply e-mail us directly. One of our representatives will get back to you promptly. Just e-mail your message to info@ovalwindowaudio.com

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