FSM Field Strength Meter

Item Number: 2380009011

Hearing Loop Equipment

The FSM is a cost effective and simple solution for measuring, setting up and commissioning an induction loop system to the requirements of IEC60118-4.

The FSM is a cost effective and simple solution for measuring, setting up and commissioning an induction loop system to the requirements of IEC60118-4. The meter is an ergonomically designed hand held instrument for measuring loop system performance. There are three calibrated operational modes for the assessment of Background Noise, Field Strength and Frequency Response as required to ensure correct function of the loop system. The meter also doubles as a loop listener, with a headphone output to listen to the signal in the loop.

The meter is supplied in a soft case with an audio CD with the required test signals, and full operating instructions including a guide to commissioning.

  • Simple assessment of any system to IEC60118-4
  • Three modes of operation for three test types
  • A-Weighted background noise • Broad band mode (50Hz - 8kHz)
  • Frequency response (100Hz, 1kHz, 5kHz)
  • True RMS detection calibrated to 400mA/m = 0dB
Magnetic field measurement
Coil orientation Vertical when unit held upright
Reference level 400mA/m (In Field strength mode)
Frequency response 50Hz to 8kHz ±0.25dB
30Hz to 10kHz -3dB
Gain stability Better than 0.5dB over all conditions
Outputs
Display Flying spot LED bar graph with wide viewing angle
Colour coded (green for -3dB to +3dB)
Audio (headphone) 16Ω min (32Ω per side)
3.5mm stereo jack connector
Power
Battery 2 x AA alkaline (supplied)
Battery monitor Battery OK when LED illuminated
Battery life Up to 100hrs use, dependent on use pattern
Physical
Dimension 84 x 27 x 140mm (FSM only)
Weight 150g excluding batteries
Temperature range -10 to +45°C
Humidity 10 to 85% RH

No documents available for this product.