SCHWARZBECK Helmholtz Coils
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Helmholtz Coils
Helmholtz Coils
• HHS 3D 5213503D HelmholtzCoil
• HHS 52029 – Circular Helmholtz Coils
• HHS 520281 – Circular Helmholtz Coil
• HHS 520320 Helmholtz Coils – Build To Order ONly
• HHS 5204 Helmholtz Coils For Calibration Purposes – Build To Order ONly
• HHS 52051 – Circular Helmholtz Coils
• HHS 52068 – Circular Helmholtz Coils
• HHS 520616 Circular Pair Of Helmholtz Coils
• HHS 5206132 Schwarbeck Circular Helmholtz Coil
• HHS 5210100 Helmholtz Coils
• HHS 5210100 2.5 – Helmholtz Coils
• HHS 3D 521350 Helmholtz Coils
• HHS 5213100 Helmholtz Coils
• HHS 5215100 Helmholtz Coils
• HHS 5230100 Pair Of Helmholtz Coils
• NFCN 9731100 Compensation Network
• NFCN 9732 Compensation Network
HelmholtzCoils are especially designed to generate precisely defined magnetic fields from DC to the upper end of the audio frequency range and beyond. The generated fields are in a strongly linear relation to the coil current. The field strength can be calculated exactly by analytical (or numerical) methods, based on the coils’ geometry, the number of turns and the coil current.
Therefore HelmholtzCoils are ideally suited for the calibration of magnetic field probes or sensors.
Typical applications are magnetic immunity testing according to automotive standards or MIL461F. When generating magnetic fields with Helmholtz coils the coil current is directly proportional to the magnetic field strength.
Magnetic Field Distrubance Tests
The tests against magnetic field disturbances can be classified in two categories:
· DC testing: in this case the field doesn´t change with the frequency. In DC testing the maximum fields are in the order of 30004000 A/m. In DC testing you must use dedicated radiating loops or Helmholtz coils (FESP 51331330 can be only used in DC testing). In DC Testing you need a radiating loop or an Helmholtz coil, DC power supply and Hall sensor.
· AC testing: in this case the field changes with the frequency.
In AC testing the maximum fields are in the order of ~1000 A/m.
In AC testing you must use dedicated radiating loops or Helmholtz coils (FESP 5132, HHS 520616 for example). In AC testing you need a radiating loop or an Helmholtz coil, RF amplifier LFPA 9733, SHUNT, compensation network NFCN 9734 and monitoring loops.
To determine which coils are required, the following information must be provide the sizes of the device under test (DuT).
For DC testing: maximum field to be reached (3000 A/m, 4000 A/m?).
For AC testing the customer must check the attached document and inform us about the normative that they are using. Each normative gives a well defined field as a function of the frequency. When we will have these information, we can design a system.
The hall probe HS 5136 can be used to measure magnetic field strengths for immunity tests according to MIL STD 461 and various automotive standards. It measures static and dynamic magnetic fields with a field strength up to 8000 A/m. The HS 5136 is a transverse probe, i.e. the magnetic flux lines must be orthogonal to the longitudinal probe axis and orthogonal to the surface of the hallelement to obtain the maximum reading.
Nominal frequency range:  DC – 10 kHz 
Useable frequency range:  DC – 200 kHz 
Nominal measuring range:  0 – 7000 A/m 
Extended measuring range:  0 – 8000 A/m 
Nominal conversion factor:  1 (A/m)/mV 
Load impedance:  >2 kΩ 
Nonlinearity.:  0.8 % 
Power supply:  +(27 – 33) V / 50 mA 
Housing:  Aluminium 
Dimensions:  ca. 470 x 42 x 28 mm 
Mounting:  22 mm Tube 
Weight:  310 g 
Connector:  BNCfemale 
HS 5136 Hall Sensor for Magnetic Field Measurements Data Sheet
HHS 3D 5213503D HelmholtzCoil
With the threedimensional Helmholtz coil HHS 3D 5213503D it is possible to create any vector field
HHS 3D 5213503D Specifications  
Number of turns (per Coil)  50 
Maximum Coil Current:  8 A (5 min.) 
Nominal Coil Current:  5 A continuos 
Maximum Magnetic Field Strength:  390 A/m 
Nominal Magnetic Field Strength:  240 A/m continuos 
Dimensions:  1.4 m x 1.4 m x 1.3 m 
Frequency Range:  DC – 20 kHz 
Resonant Frequency (per Coil):  > 30 kHz 
Weight:  ca. 85 kg 
Inner Coil (YAxis) 

Effective Coil Dimensions:  1.1 m x 1.1 m 
Coil Separation acc. EN 55103:  62 cm 
Magnetic Field Strength, 1 A:  57.7 A/m 
Resistance (Coil pair):  3.0 Ω 
Inductance (Coil pair):  19.08 mH (Coil Dist. 0.62 m) 
Center Coil (XAxis) 

Effective Coil Dimensions:  1.21 m x 1.21 m 
Coil Separation acc. EN 55103:  68 cm 
Magnetic Field Strength, 1 A:  52.5 A/m 
Resistance (Coil pair):  3.3 Ω 
Inductance (Coil pair):  21.3 mH (Coil Dist. 0.68 m) 
Outer Coil (ZAxis) 

Effective Coil Dimensions:  1.32 m x 1.32 m 
Coil Separation acc. EN 55103:  74 cm 
Magnetic Field Strength, 1 A:  48.2 A/m 
Resistance (Coil pair):  3.6 Ω 
Inductance (Coil pair):  23.58 mH (Coil Dist. 0.74 m) 
Schwarzbeck HHS 3D 5213503D HelmholtzCoil Data Sheet

Schwarzbeck Circular Helmholtz Coils HHS 520198 Data Sheet
Number of turns:  6 
Maximum Coil Current:  40 A (1 min.) 15 A (15 min.) 
Nominal Coil Current:  12 A continuous 
Coil Spacings (centered):  50 … 80 mm 
The following data refers to a coil separation of 60 mm 

Max. Magn. Field Strength:  2860 A/m (1 min.) 
Nominal Magn. Field Strength:  860 A/m continuous 
Magn. Field Strength, 1 A Coil Current:  71.55 A/m 
Coil Diameter:  120 mm 
Mechanical Dimensions:  290 x 220 x 130 mm 
Terminals:  4 mm female 
Inductance (Single Coil):  8 µH 
Inductance (Coil Pair):  18.7 µH / 50 mm 18.2 µH / 60 mm 17.9 µH / 70 mm 
Usable Frequency Range:  DC – 5 MHz 
Resonance Frequency:  > 8 MHz 
Weight:  2.8 kg 
Schwarzbeck Circular Helmholtz Coils HHS 52016 Data Sheet
HHS 520281 – Circular Helmholtz Coil
HelmholtzCoils are especially designed to generate precisely defined magnetic fields from DC to the upper end of the audio frequency range and beyond. The generated fields are in a strongly linear relation to the coil current. The field strength can be calculated exactly by analytical (or numerical) methods, based on the coils’ geometry, the number of turns and the coil current. Therefore the HHS 520281 is ideally suited for the calibration of magnetic field probes or sensors. Due to the high temperature proof copper wire packet it is possible to generate magnetic fields up to approx. 3000 A/m for short times. Typical applications are magnetic immunity testing according to automotive standards or MIL461. When generating magnetic fields with Helmholtz coils the coil current is directly proportional to the magnetic field strength.
Number of turns:  81 
Maximum Coil Current:  6 A (5 min.) 
Nominal Coil Current:  5 A continuous 
Coil Spacings (centered):  116 mm / 132 mm 
The following data refers to a coil separation of 116 mm
Max. Magn. Field Strength:  3000 A/m (5 min.) 
Nominal Magn. Field Strength:  2000 A/m continuous 
Magn. Field Strength, 1 A Coil Current:  500A/m 174 dBµA/m 
Coil Diameter:  232 mm 
Mechanical Dimensions:  0.20 m x 0.25 m x 0.39 m 
Max. cubical shaped DuT:  11.3 cm x 11.3 cm x 11.3 cm 
Terminals:  4 mm female 7 mm screw terminals 
Inductance (Single Coil):  2.83 mH 
Inductance (Coil Pair):  6.42 mH 
Usable Frequency Range:  DC – 300 kHz 
Resonance Frequency:  > 400 kHz 
Weight:  4.7 kg 
Schwarzbeck HHS 520281 Circular Helmhotz Coil Data Sheet
HHS 52029 – Circular Helmholtz Coils
HelmholtzCoils are especially designed to generate precisely defined magnetic fields from DC to the upper end of the audio frequency range and beyond. The generated fields are in a strongly linear relation to the coil current. The field strength can be calculated exactly by analytical (or numerical) methods, based on the coils’ geometry, the number of turns and the coil current. Therefore the HHS 52029 is ideally suited for the calibration of magnetic field probes or sensors. Due to the high temperature proof copper wire packet it is possible to generate magnetic fields up to approx. 3000 A/m for short times. Typical applications are magnetic immunity testing according to automotive standards or MIL461. When generating magnetic fields with Helmholtz coils the coil current is directly proportional to the magnetic field strength.
Number of turns:  9 
Maximum Coil Current:  55 A (5 min.) 
Nominal Coil Current:  33 A continuous 
Coil Spacings (centered):  116 mm / 132 mm 
The following data refers to a coil separation of 116 mm
Max. Magn. Field Strength:  3053 A/m (5 min.) 
Nominal Magn. Field Strength:  1832 A/m continuous 
Magn. Field Strength, 1 A Coil Current:  55.52 A/m 154.89 dBµA/m 
Coil Diameter:  232 mm 
Mechanical Dimensions:  0.20 m x 0.25 m x 0.39 m 
Max. cubical shaped DuT:  11.3 cm x 11.3 cm x 11.3 cm 
Terminals:  4 mm female jacks 7 mm screw terminals 
Inductance (Single Coil):  36 µH 
Inductance (Coil Pair):  80 µH 
Usable Frequency Range:  DC – 2.5 MHz 
Resonance Frequency:  > 3.5 MHz 
Weight:  4.9 kg 
Schwarzbeck Maximum Magnetic Field Strenght of HHS 52029 with LFPA 9733
Schwarzbeck HSS 52029 Circular Helmhotz Coil Data Sheet
Schwarzbeck Overview MagTestSystem combinations for Immunity Testing Data sheet
HHS 520320 Helmholtz Coils – Build To Order Only
· Helmholtz Coils
· circular
· Diameter 300 mm
· 330 A/m for Calibration or Immunity
Schwarzbeck Circular Helmholtz Coils HHS 520320 Data Sheet
Number of turns:  36 
Maximum Coil Current:  20 A (5 min.) 
Nominal Coil Current:  10 A continuous 
Coil Spacings:  200 mm, 250 mm, 300 mm 
The following data corresponds to a coil spacing of 200 mm 

Max. Magn. Field Strength:  2500 A/m (5 min.) 
Nominal Magn. Field Strength:  1288 A/m continuous 
Magn. Field Strength, 1 A Coil Current:  128.8 A/m 162.2 dBµA/m 
Conversion Current>Fieldstrength:  42.2 dB/m 
Coil Diameter:  400 mm 
Mechanical Dimensions:  0.38 m x 0.58 m x 0.42 m 
Terminals:  4 mm female 
Inductance (Single Coil):  1.15 mH 
Inductance (Coil Pair):  2.56 mH 
Usable Frequency Range:  DC – 150 kHz 
Resonance Frequency:  >200 kHz 
Weight:  8.5 kg 
Schwarzbeck Circular Helmholtz Coils HHS 520436 Data Sheet
Number of turns:  12 
Maximum Coil Current:  60 A (5 min.) 
Nominal Coil Current:  30 A continuous 
Coil Spacings:  200 mm, 250 mm, 300 mm 
The following data corresponds to a coil spacing of 200 mm 

Max. Magn. Field Strength:  2500 A/m (5 min.) 
Nominal Magn. Field Strength:  1288 A/m continuous 
Magn. Field Strength, 1 A Coil Current:  42.93 A/m 152.66 dBµA/m 
Conversion Current>Fieldstrength:  32.66 dB/m 
Coil Diameter:  400 mm 
Mechanical Dimensions:  0.38 m x 0.58 m x 0.42 m 
Terminals:  4 mm female 
Inductance (Single Coil):  1.20 µH 
Inductance (Coil Pair):  2.40 – 2.60 mH 
Usable Frequency Range:  DC – 500 kHz 
Resonance Frequency:  >1.4 MHz 
Weight:  10.2 kg 
Schwarzbeck Circular Helmholtz Coils HHS 520412 Data Sheet
HHS 5204 Helmholtz Coils For Calibration Purposes – Build To Order Only
· Helmholtz Coils for Calibration purposes
· circular
· diam. 420 mm
· 5 turns f. 60 A/m
Schwarzbeck Circular Helmholtz Coils HHS 5204 Data Sheet
HHS 52051 – Circular Helmholtz Coil
Number of turns (per coil):  1 
Maximum Coil Current:  20 A, 1 min. 
Nominal Coil Current:  15 A continuous 
Coil Spacings (centered):  250 mm 
Max. Magn. Field Strength:  28.6 A/m, 1 min 
Nominal Magn. Field Strength:  14.3 A/m continuous 
Magn. Field Strength, 1 A Coil Current:  1.43 A/m 123.11 dBµA/m 
Coil Diameter:  500 mm 
Max. Cubical shaped DuT:  25 x 25 x 25 cm 
Mechanical Dimensions:  0.52 m x 0.72 m x 0.42 m 
Terminals:  Nfemale 
Inductance (Single Coil):  1.15 µH 
Inductance (Coil Pair):  0.67 µH 
Usable Frequency Range:  DC – 30 MHz 
Resonance Frequency:  > 44 MHz 
Weight:  5.5 kg 
Schwarzbeck HHS 52051 – Circular Helmholtz Coil Data Sheet
HHS 52068 – Circular Helmholtz Coil
Number of turns:  8 
Maximum Coil Current:  55 A (5 min.) 
Nominal Coil Current:  34 A continuous 
Coil Spacings (centered):  300 mm 
Max. Magn. Field Strength:  1060 A/m (5 min.) 
Nominal Magn. Field Strength:  650 A/m continuous 
Magn. Field Strength, 1 A Coil Current:  19.23 A/m 145.68 dBµA/m 
Coil Diameter:  600 mm 
Max. Cubical shaped DuT:  32.5 x 32.5 x 32.5 cm 
Mechanical Dimensions:  0.64 m x 0.79 m x 0.42 m 
Terminals:  4 mm female 
Inductance (Single Coil):  91 µH 
Inductance (Coil Pair):  200 µH 
Usable Frequency Range:  DC – 800 kHz 
Resonance Frequency:  > 1500 kHz 
Weight:  17.0 kg 
Recommended accessories:  NFCN 9732 85 kHz 
Schwarzbeck HHS 52068 – Circular Helmholtz Coil Data Sheet
Recommended accessories
NFCN 9732 85 kHz – Compensation Network
The compensation network NFCN 9732 85 kHz consists of a high current/ high voltage variable capacitor. The compensation capacitor reduces the total impedance of the series circuitry consisting of the Helmholtz coil HHS 52068 and the NFCN 9732 85 kHz at the operating frequency band of 8090 kHz. It allows continuous currents of up to 15 Arms at generator voltages of less than 40 Vrms. Application: Immunity test induktive changing 85 kHz
Schwarzbeck NFCN 9732 85 kHz – Compensation Network Data Sheet
HHS 520616 Circular Pair Of Helmholtz Coils
Number of turns:  16 
Maximum Coil Current:  55 A (5 min.) 
Nominal Coil Current:  33 A continuous 
Coil Spacings (centered):  300 mm 
Max. Magn. Field Strength:  2100 A/m (5 min.) 
Nominal Magn. Field Strength:  1260 A/m continuous 
Magn. Field Strength, 1 A Coil Current:  38.17 A/m 151.63 dBµA/m 
Coil Diameter:  600 mm 
Max. Cubical shaped DuT:  32.5 x 32.5 x 32.5 cm 
Mechanical Dimensions:  0.64 m x 0.79 m x 0.42 m 
Terminals:  4 mm female 
Inductance (Single Coil):  340 µH 
Inductance (Coil Pair):  750 µH 
Usable Frequency Range:  DC – 500 kHz 
Resonance Frequency:  > 700 kHz 
Weight:  20.4 kg 
Schwarzbeck Circular Helmholtz Coils HHS 520616 Data Sheet
Schwarzbeck Security Notes HHS 520616
HHS 5206132 Schwarbeck Circular Helmholtz Coil
Schwarbeck Circular Helmholtz Coil HHS 5206132
HelmholtzCoils are especially designed to generate precisely defined magnetic fields from DC to the upper end of the audio frequency range and beyond. The generated fields are in a strongly linear relation to the coil current. The fieldstrength can be calculated exactly by analytical (or numerical) methods, based on the coils’ geometry, the number of turns and the coil current. Therefore the HHS 5206132 is ideally suited for the calibration of magnetic field probes or sensors. Typical applications are magnetic immunity testing according to automotive standards or MIL461F. When generating magnetic fields with Helmholtz coils the coil current is directly proportional to the magnetic field strength. The calibration of the magnetic field is finally traceable to a current measurement (or to a voltage drop at a known resistor). The Helmholtz Coil itself is usually considered as primary standard due to the easily calculable relation between current and field strength. If this relation should be controlled, a loop sensor or monitoring loop can be used to determine the actual field strength.
Specifications  
Number of turns (per Coil):  132 
Maximum coil current:  15 A, 5 min. 
Nominal coil current:  10 A continuous 
Coil spacing:  300 mm 
Maximum magnetic field strength:  4713 A/m, 5 min. 
Nominal magnetic field strength:  3142 A/m continuous 
Magnetic field strength @ 1 A Coil Current:  314.2 A/m 169.97 dBµA/m 
Current required for 1 A/m:  3.183 mA 
Conversion Current Field strength (Coil factor):  50 dB/m 
Coil diameter:  600 mm 
Mechanical dimensions:  0.64 m x 0.79 m x 0.42 m 
Max. cubical shaped DuT:  32.5×32.5×32.5 cm 
Terminals:  4 mm banana jacks Screw terminals 
Usable frequency range:  DC – 30 kHz 
Inductance (per coil):  22.4 mH 
Inductance (pair of coils):  49.9 mH 
Resistance by 20°C (per coil):  1.42 
Resistance by 120°C (per coil):  1.96 
Coil capacitance (pair of coils):  174 pF 
Resonance frequency (Pair of coils):  > 50 kHz 
Weight:  27.5 kg 
Schwarbeck Circular Helmholtz Coil HHS 5206132 Data Sheet
· Helmholtz Coils
· up to 300 A/m constant H field
· 1 m x 1 m
· 10 turns per coil
· EN 6100048, VDE 0847 part 48
Schwarzbeck Helmholtz Coils HHS 5210 Data Sheet
Number of turns:  10 
Maximum Coil Current:  20 A (5 min.) 
Nominal Coil Current:  10 A continuous 
Max. Magn. Field Strength:  300 A/m (5 min.) 
Nominal Magn. Field Strength:  150 A/m continuous 
Magn. Field Strength, 1 A Coil Current:  15 A/m (Coil Dist. 0.4 m) 
Mechanical Dimensions:  1.0 x 1.0 x 0.63 m 
Coil Separation acc. IEC 100048:  0.40 m 
Coil Separation for best uniformity:  0.57 m 
Terminals:  4 mm female 
Inductance (per Coil):  0.36 mH 
Usable Frequency Range:  DC – 150 kHz 
Resonance Frequency:  > 600 kHz 
Weight:  10 kg 
Schwarzbeck Helmholtz Coils HHS 5210 Data Sheet
Number of turns:  100 
Maximum Coil Current:  15 A (5 min.) 
Nominal Coil Current:  9 A continuous 
Inner side length of the coil:  1.0 m 
Electrical side length of the coil:  1.04 m 
Maximum Coil Separation:  0.70 m 
Usable Frequency Range:  DC – 10 kHz 
Inductance (per Coil):  31.3 mH 
Resonance Frequency (Pair of Coils):  >25 kHz 
Weight:  36.5 kg 
Terminals:  4 mm female 
The following data is valid for 0.4 m coil distance: 

Coil Separation acc. IEC 100048:  0.40 m 
Max. Magn. Field Strength:  2183 A/m (5 min.) 
Nominal Magn. Field Strength:  1310 A/m continuous 
Magn. Field Strength, 1 A Coil Current:  145.54 A/m (Coil Dist. 0.4 m) 
The following data is valid for 0.566 m coil distance: 

Coil Separation for best uniformity along an axes through the coil center:  0.566 m 
Magn. Field Strength, 1 A Coil Current:  124.66 A/m (Coil Dist. 0.566 m) 
Recommended Accessories:  NFCN 9732120 
Schwarzbeck Helmholtz Coils HHS 5210100 Data Sheet
Recommended Accessories: NFCN 9732120 – Compensation Network The compensation network NFCN 9732120 consists of a capacitor and a fuse in series. It is used for a series compensation of the HHS 5210100 at energetical mains frequencies of 50 Hz to 60 Hz. The compensation capacitor reduces the total impedance of the series circuitry consisting of the Helmholtz coils HHS 5210100 and the NFCN 9732120 at the operating frequencies of 50 to 60 Hz. It allows continuous currents of up to 8 A rms at generator voltages of less than 70 Vrms …80 Vrms .
Schwarzbeck NFCN 9732120 – Compensation Network Data Sheet
HHS 5210100 2.5 – Helmholtz Coils
HelmholtzCoils are especially designed to generate precisely defined magnetic fields from DC to the upper end of the audio frequency range and beyond. The generated fields are in a strongly linear relation to the coil current. The fieldstrength can be calculated exactly by analytical (or numerical) methods, based on the coils’ geometry, the number of turns and the coil current. The calibration of the magnetic field is finally traceable to a current measurement (or to a voltage drop at a known resistor).
Number of turns:  100 
Maximum Coil Current:  20 A (5 min.) 
Nominal Coil Current:  15 A continuous 
Inner side length of the coil:  1.0 m 
Electrical side length of the coil:  1.04 m 
Maximum Coil Separation:  0.70 m 
Usable Frequency Range:  DC – 10 kHz 
Inductance (per Coil):  31.3 mH 
Resonance Frequency (Pair of Coils):  >25 kHz 
Weight:  56 kg 
Terminals:  4 mm female 
The following data is valid for 0.4 m coil distance:
Coil Separation acc. IEC 100048:  0.40 m 
Max. Magn. Field Strength:  2900 A/m (5 min.) 
Nominal Magn. Field Strength:  1746 A/m continuous 
Magn. Field Strength, 1 A Coil Current:  145.54 A/m (Coil Dist. 0.4 m) 
The following data is valid for 0.566 m coil distance:
Coil Separation for best uniformity along an axes through the coil center:  0.566 m 
Magn. Field Strength, 1 A Coil Current:  124.66 A/m (Coil Dist. 0.566 m) 
Datasheet HHS 5210100 2.5
· Helmholtz Coils
· up to 250 A/m H field
· 1.20m x 1.20 m
· 10 turns
Schwarzbeck Helmholtz Coils HHS 5212 Data Sheet
Number of turns:  10 
Maximum Coil Current:  20 A (5 min.) 
Nominal Coil Current:  10 A continuous 
Maximum Coil Separation:  0.70 m 
Usable Frequency Range:  DC – 150 kHz 
Inductance (per Coil):  0.45 mH 
Resonance Frequency (Pair of Coils):  >500 kHz 
Weight:  12 kg 
Terminals:  4 mm female 
Coil Separation acc. IEC 100048:  0.48 m 
Coil Separation for best uniformity:  0.68 m 
Max. Magn. Field Strength:  250 A/m (5 min.) 
Nominal Magn. Field Strength:  125 A/m continuous 
Magn. Field Strength, 1 A Coil Current:  12.45 A/m (Coil Dist. 0.48 m) 
Schwarzbeck Helmholtz Coils HHS 5212 Data Sheet
· Helmholtz Coils
· 1.25 m x 1.25 m
· 50 turns per coil
· according to EN 551032 A.2.1.b)
Schwarzbeck Helmholtz Coils HHS 521350 Data Sheet
Number of turns:  50 
Maximum Coil Current:  8 A (5 min.) 
Nominal Coil Current:  5 A continuous 
Max. Magn. Field Strength:  390 A/m (5 min.) 
Nominal Magn. Field Strength:  240 A/m continuos 
Magn. Field Strength, 1 A Coil Current:  48.5 A/m (coil Dist. 0.75 m) 
Coil Separation acc. IEC 100048:  0.75 m 
Maximum Coil Separation:  0.82 m 
Mechanical Dimensions:  1.36 m x 1.36 m x 0.9 m 
Usable Frequency Range:  DC – 20 kHz 
Inductance (per Coil):  10.5 mH 
Resonance Frequency (Pair of Coils):  >30 kHz 
Weight:  18 kg 
Terminals:  4 mm female 
Schwarzbeck Helmholtz Coils HHS 521350 Data Sheet
HHS 3D 521350 ThreeDimensional HelmholtzCoil Data Sheet
With the threedimensional Helmholtz coil HHS 3D 521350 it is possible to create any vector field.
Specifications: 

Frequency Range: 
0 … 20 kHz 
Number of turns (per Coil): 
50 
Maximum Coil Current: 
8 A, 5 min. 
Nominal Coil Current: 
5 A continuous 
Maximum Magnetic Field Strength: 
390 A/m, 5min 
Nominal Magnetic Field Strength: 
240 A/m continuous 
Resonant Frequency (per Coil): 
> 30 kHz 
Dimensions: 
1.4 m x 1.4 m x 1.3 m 
Weight: 
Ca. 85 kg 
Specifications: 
Inner Coil (YAxis) 
Effective Coil Dimensions: 
1.1 m x 1.1 m 
Coil Separation acc. EN 55103: 
62 cm 
Magnetic Field Strength, 1 A: 
57,7 A/m 
Resistance (Coil pair): 
3.0 Ω 
Inductance (Coil pair): 
19.08 mH (Coil Dist. 0.62 m) 
Specifications: 
Center Coil (XAxis) 
Effective Coil Dimensions: 
1.21 m x 1.21 m 
Coil Separation acc. EN 55103: 
68 cm 
Magnetic Field Strength, 1 A: 
52,5 A/m 
Resistance (Coil pair): 
3.3 Ω 
Inductance (Coil pair): 
21.3 mH (Coil Dist. 0.68 m) 
Specifications: 
Outer Coil (ZAxis) 
Effective Coil Dimensions: 
1.32 m x 1.32 m 
Coil Separation acc. EN 55103: 
74 cm 
Magnetic Field Strength, 1 A: 
48.2 A/m 
Resistance (Coil pair): 
3.6 Ω 
Inductance (Coil pair): 
23.58 mH (Coil Dist. 0.74 m) 
Schwarzbeck HHS 3D 521350 ThreeDimensional HelmholtzCoil Data Sheet
Number of turns:  100 
Maximum Coil Current:  15 A (5 min.) 
Nominal Coil Current:  9 A continuous 
Nominal Magn. Field Strength:  900.9 A/m continuos 
Magn. Field Strength, 1 A Coil Current:  100.096 A/m (coil Dist. 0.705 m) 
Maximum Coil Separation:  0.83 m 
Mechanical Dimensions:  1.46 m x 1.36 m x 0.91 m 
Usable Frequency Range:  DC – 5 kHz 
Inductance (Coil pair):  88.3 mH (Coil Dist. 0.705 m) 
Resonance Frequency (Pair of Coils):  >13 kHz 
Weight:  44.5 kg 
Terminals:  4 mm female 
Schwarzbeck Helmholtz Coils HHS 5213100 Data Sheet
· Helmholtz Coils
· up to 200 A/m constant H field
· 1,5 m x 1,5 m
· 10 turns per coil
Schwarzbeck Helmholtz Coils HHS 5215 Data Sheet
Number of turns:  10 
Maximum Coil Current:  20 A (5 min.) 
Nominal Coil Current:  10 A continuous 
Max. Magn. Field Strength:  200 A/m (5 min.) 
Nominal Magn. Field Strength:  100 A/m continuos 
Magn. Field Strength, 1 A Coil Current:  9.96 A/m (coil Dist. 0.6 m) 
Coil Separation acc. IEC 100048:  0.6 m 
Maximum Coil Separation:  0.86 m 
Mechanical Dimensions:  1.5 m x 1.5 m x 0.9 m 
Usable Frequency Range:  DC – 100 kHz 
Inductance (Coil pair):  0.6 mH 
Resonance Frequency (Pair of Coils):  >400 kHz 
Weight:  14 kg 
Terminals:  4 mm female 
Schwarzbeck Helmholtz Coils HHS 5215 Data Sheet
Number of turns:  100 
Maximum Coil Current:  20 A (5 min.) 
Nominal Coil Current:  10 A continuous 
Max. Magn. Field Strength:  2000 A/m (max. 5 min., dist. 0.84 m*) 
Nominal Magn. Field Strength:  842 A/m continuos 
Magn. Field Strength, 1 A Coil Current:  84.2 A/m (coil dist. 0.84 m*) 
Maximum Coil Separation:  0.93 m* 
Mechanical Dimensions:  1.69 m x 1.60 m x 1.00 m 
Usable Frequency Range:  DC – 6 kHz 
Inductance (Coil pair):  112 mH 
Resonance Frequency (Pair of Coils):  >20 kHz 
Weight:  53 kg 
Terminals:  4 mm female 
Schwarzbeck Helmholtz Coil HHS 5215100 Data Sheet
Number of turns:  10 
Maximum Coil Current:  20 A (5 min.) 
Nominal Coil Current:  10 A continuous 
Max. Magn. Field Strength:  126 A/m (5 min.) 
Nominal Magn. Field Strength:  63 A/m continuos 
Magn. Field Strength, 1 A Coil Current:  6.26 A/m (coil Dist. 1.2 m) 
Coil Separation acc. IEC 100048:  0.72 m 
Maximum Coil Separation:  1.25 m 
Coil Separation for best uniformity:  1.20 m 
Mechanical Dimensions:  1.8 m x 1.8 m x 1.2 m 
Usable Frequency Range:  DC – 100 kHz 
Resonance Frequency (Pair of Coils):  >400 kHz 
Weight:  17 kg 
Terminals:  4 mm female 
Schwarzbeck Helmholtz Coils HHS 5218 Data Sheet
HHS 5230100 Pair Of Helmholtz Coils
The HelmholtzCoil HHS 5230100 are especially designed to generate precisely defined magnetic fields from DC to ca. 5 kHz, e.g. according to SAE J55117. Typical applications are magnetic immunity testing to whole vehicles according to SAEJ55117 (Vehicle Electromagnetic Immunity – Power Line Magnetic Fields).
Number of turns:  100 
Maximum Coil Current:  16 A (5 min.) 
Nominal Coil Current:  8 A continuous 
Max. Magn. Field Strength:  650 A/m @ coil Dist. =1.8 m 
Nominal Magn. Field Strength:  325 A/m @ coil Dist. = 1.8 m 
Magn. Field Strength, 1 A Coil Current:  50.8 A/m (coil Dist. 1.13 m) 
Maximum Coil Separation:  >1.13 m 
Coil Separation for best uniformity:  1.8 m 
Mechanical Dimensions:  W:2.0 m x H:3.10 m x B:3.18 m 
Ground Clearence:  0.12 m 
Usable Frequency Range:  DC – 5 kHz 
Resonance Frequency (per Coil):  >10 kHz, typ. 13 kHz 
Weight (per Coil):  190 kg 
Recommended Accessories:  NFCN 9731100 
Schwarzbeck Helmholtz Coil Pair HHS 5230100 Data Sheet
Assembly Instructions for Helmholtz Coil Pair HHS 5230
RECOMMENDED ACCESORIES
NFCN 9731100 Matching Network
The primary function of the compensation network NFCN 9731100 is to provide a serial compensation of the inductance of i.e. the HHS 5230100 at operation frequencies of 16.666 Hz, 50 Hz, 60 Hz, 150 Hz und 180 Hz. These operation frequencies are stipulated by SAE J551 – 17 (Vehicle Electromagnetic Immunity – Power Line Magnetic Fields). The compensation capacitor reduces th e overall impedance of the series circuit consisting of the Helmholtz coil HHS 5230100 and the compensation network NFCN 9731100 at the applied operating frequency and allows currents up to 8 Arms at a generator voltage of less than 60 Vrms.
Recommended amplifiers:
· 2 units of AE Techron 7224.