Overview
The handheld coil FESP 5133-1330 was designed for immunity testing against magnetic fields up to approx. 20 kHz. The coil has 225 turns of Cu-wire on 15 layers. There are spacers to provide a constant distance of 50 mm between coil center and EuT-surface. The generated magnetic fieldstrength is directly proportional to the coil current. Typical applications are immunity tests according to method SF 01 G VG 95377.
Magnitude of Source Impedance (Overview)
Frequency [kHz]
| Specifications | |
| Number of turns | 225 |
| Wire diameter | 2 mm |
| Maximum coil current | 20 A |
| Max. magnetic fieldstrength at 50 mm spacing | 17 kA/m |
| Magnetic fieldstrength at 1 A coil current in 50 mm distance | 858.2 A/m |
| Required current for 1000 A/m in 50 mm distance | 1.165 A |
| Magnetic flux density at 1 A coil current in 50 mm distance | 1.078 mT 180.66 dBpT |
| Conversion current-magnetic fielstrength | 58.67 dB/m |
| Mechanical dimensions | 190x190x290 mm |
| Terminals | 4 mm Banane |
| Length of connection cable | 3 m |
| Usable frequency range | 0 - 20 (50)kHz |
| Weight | 5.3 kg |
| Medium coil diameter | 126 mm |
| Medium coil distance to surface | 50 mm |
| Inductance | 6.5 mH |
| Resistance | 0.5 ? |
| Capacitance | 240-300 pF |
| Resonance frequency | 120 kHz |
| Impedance | |Z|=42 ? @ 1 kHz |
