The FSM Magnetic Field Strength Meter from Ampetronic 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 and with full operating instructions including a guide to commissioning. The Ampetronic FSM can be used to monitor, set up or commission any induction loop system regardless of the manufacturer or type.
| Frequency Response | 50 Hz to 8 kHz ±0.25 dB, 30 Hz to 10 kHz -3 dB |
| Gain Stability | Better then 0.5 dB over all conditions |
| LEDs | Color Coded - Green for -3 to +3 dB, Red for -4 to -22 dB |
| Headphone Connector | 3.5 mm Stereo Connector, 16 Ohms (32 Ohms per side) |
| Coil Orientation | Vertical when held upright |
| Reference Level | 400 mA/m (In field strength mode) |
| Battery Type | Two (2) x AA Alkaline |
| Battery Life | Up to 100 hrs. use, dependant on use pattern |
| Battery Monitor | Battery OK when LED illuminated |
| Width | 3.3 in. (84 mm) |
| Height | 5.5 in. (140 mm) |
| Depth | 1.0 in. (27 mm) |
| Shipping Weight | 1.2 lbs. (0.54 kg) |
| Weight | 1.2 lbs. (0.54 kg) |
| Relative Humidity | IP20 Protection, 20 to 90% Relative Humidity, 14 F (-10 C) to 113 F (45 C) |
14912 Heritage Crest Way
Bluffdale, Utah
84065-4818 USA
Phone: +1.801.233.8992
Toll-Free: 1.800.330.0891
Office Hours
8:00 am – 5:00 pm MT
Monday – Friday
