• FESP 5133 - DC - 200 kHz Radiating Loop
  • FESP 5133 - DC - 200 kHz Radiating Loop
  • FESP 5133 - DC - 200 kHz Radiating Loop

FESP 5133 - DC - 200 kHz Radiating Loop

  • Magnetic, handheld coil
  • DC - 200 kHz
  • diam. 133 mm
  • turns 36
  • Immunity testing to MIL 461, EN 55103 - 2 A.2.1 b), EN 55103 - 2 A.4.1

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TEST STANDARDS:

Data Sheet

SPECIFICATIONS

 

FESP 5133 - Radiating Loop

The magnetic, handheld coil FESP 5133 was designed to generate defined magnetic field strength in the audio frequency range up to 100 kHz. The main application is immunity testing against magnetic fields according to e.g. (of professional studio equipment acc. to EN 55103), MIL-STD 461, VG 95377 part 13) and many others). Depending on the current source characteristics magnetic fields up to 1000 A/m can be generated for a short time.

The generated magnetic field strength is proportional to the coil current. Two different distance rings (50 mm and 100 mm separation) are supplied to ensure a well-defined spacing between the coil plane and the EuT-surface. The highest field strength levels can be achieved using the shortest ring. There are further rings available on request in order to provide a certain scaling between coil current and magnetic field strength (e.g. 1 Amp coil current = 100 Amp/m field strength)

Application as a magnetic field probe:

The FESP 5133 can also be used to measure existing magnetic fields. The open-circuit output voltage is directly proportional to the magnetic field strength (at a fixed frequency) or directly proportional to frequency (at constant magnetic field strength).

 

 

Specifications: 

 

  Number of turns: 36
  Wire diameter: 1.26 mm Cu
  Maximum coil current: 10 A (5 min.)
  Nominal coil current: 5 A continuous
  Max. magn. field strength: 1385 A/m (5 min.)
  Nominal magn. field strength: 700 A/m continuous
  Magnetic field strength, 1 A coil current: (with 50 mm distance ring):

138.5 A/m
 

Current required for 1 A/m:
(with 50 mm distance ring)

 7.22 mA
  Magnetic field strength, 1 A coil current: (with 100 mm distance ring) 46.88 A/m
 

Current required for 1 A/m:
(with 100 mm distance ring)

 21.3 mA
  Flux density with 50 mA at 50 mm distance:

138.8 dBpT
136.8 dBµA/m
 

Inner coil diameter:

 133 mm
  Medium coil diameter: 135.5 mm
  Spacing coil center to measurement plane: 50 mm / 100 mm
  Mechanical dimensions:  0.16 m x 0.25 (0.3) m
  Coil terminals: 4 mm Laborstecker (Standard) oder BNC
  Shield: Electrostatic
  Usable frequency range: 0 - 200 kHz
  Inductance: ≈ 300 μH
  Resonance frequency: >500 kHz
 

Resistance:

0.6 Ohms
 

Weight:

1.1 kg
 

Standard:

MIL 461
EN 55103 - 2 A.2.1 b)
EN 55103 - 2 A.4.1

 

  

 

 

 

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