Connevans AFILS Loop Field Strength Meter

40IFSCE
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£132.10
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The Connevans 40IFSCE Audio Frequency Induction Loop field strength meter is a calibrated precision measurement device. It is designed to meet the requirements of BS7594.

 

Two different frequency response characteristics are provided: 'NORMAL' which is a restricted response, similar to that of a hearing aid, and 'FLAT' which is a wide, flat response, similar to that of an equalized induction loop receiver for wide-band communication. Both filter characteristics meet the requirements of BS7594.

 

The meter is calibrated in two ranges; +3dB to -24dB and -24 to -51dB with respect to the field strength of 0.56A/m recommended by BS7594, allowing background magnetic noise levels to be measured as well as AFILS signal strength. The measured audio signal may be monitored using headphones on all range and filter combinations.

 

This meter has a number of important features that distinguish it from other similar meters on the market:

  • The indicating scale is referenced to a magnetic field strength of 0.56A/m, as recommended in BS7594.
  • The meter responds to programme peaks. The PPM style of indicator allows the user to verify in real time that an AFILS can provide sufficient field strength for good speech clarity.
  • The monitor audio output is active on all range and filter combinations. The monitor output frequency response is modified to emulate that of a typical induction loop listener. This means that the person testing hears a similar signal to that to be heard by a loop user.
  • The meter is operated in the vertical plane so that it is easy to read when held at the hearing aid position.
  • The meter is designed with high quality components for low noise and operates over a very wide range of 54dB in two stages.
  • The range in use is indicated by an LED, as is a low battery condition warning.
  • The LED scale is colour coded. Green is OK for background noise and speech peaks (depending on range selected).
  • Two measurement filter (tone) responses are provided.
  • The meter is calibrated, traceable to National Standards.

Includes: Loop Field Strength Meter, carrying pouch, headphones, 1 x PP3 battery & instructions.

 

Power: 1 x PP3 9V alkaline battery (supplied)

Battery life: >10 hours

Indicating ranges: -51dB to -24dB and -24dB to +3dB with respect to 0.56A/m

Headphone monitor: max 2 x 19mW into 32 ohms

Relevant standards: BS7594, BS6083, BS6840, BS EN 60118

The following additional information is available for this product

Follow this link to view PDF user instructions

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