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HFD-0191 FieldMan H-Field probe, 27MHz - 1GHz
  • HFD-0191 FieldMan H-Field probe, 27MHz - 1GHz

HFD-0191 FieldMan H-Field probe, 27MHz - 1GHz

HFD-0191

Isotropic measurement of magnetic fields from 27MHz to 1GHz using the Field Meter FieldMan®

Description

The probe detects magnetic fields from 27 MHz up to 1 GHz. This wide frequency range for a magnetic field probe covers all the major areas of electromagnetic field exposure that can occur in radio and TV broadcasting, telecom-munications, and in high frequency industrial applications. The probe is suitable for the detection of human exposure limits in the general public and occupational environments.

The probe's interface digitally transmits the measurement data to the base unit, which has no individual influence on the measured values and therefore does not need to be calibrated. Probe calibration is carried out at several frequencies. The calibration data is stored in the probe and is automatically taken into account during the measure-ment. If the frequency of the predominating field strength is known, a correction factor can additionally be applied to increase the measurement accuracy.

  • Isotropic (non-directional) measurement
  • High dynamic range of 60 dB
  • Wide True RMS range up to 1 A/m
  • Digital probe interface - no more meter calibration
  • Self-test of the probe interface with integrated sensor function test
  • Automatic offset correction, no zero adjustment required
  • Wide temperature range from -20 °C to +50 °C
  • High Immunity at 50/60 Hz
  • Factory calibration up to 1 GHz
Product Details
HFD-0191

Data sheet

Field
H-Field
Dimensions
308 mm x 66 mm Ø
Weight
up to 100 g
Frequency range
27MHz - 1GHz
Operating conditions
-20 °C to +50 °C, less than 29 g/m³ (less than 93 % RH at +30 °C), non-condensing
Storage conditions
1K5 (IEC 60721-3) -40 °C to +70 °C
Protection class
IP54 (probe screwed on)
Type of product
FieldMan probes
Dynamic range (dB)
60 dB
Measurement range, H field
0.016 to 16 A/m (CW); 0.016 to 1 A/m (True RMS); 9.6 μW/cm² to 10 W/cm² (CW); 9.6 μW/cm² to 38 mW/cm² (True RMS)
Integration time
270 ms
Continuous wave damage level
20 A/m; 15 W/cm²
Peak damage level
200 A/m; 1.5 kW/cm²
Sensor type
Diode based system
Directivity
Isotropic (Tri-axial)
Spatial assessment
3 separate axes
Sampling rate
5 Hz
Temperature sensors
Integrated sensors for displaying the ambient temperature and for automatic offset compensation
Self-test
Interface function test and sensor test for interruption of diodes
Flatness of frequency response
±0.7 dB (50 to 80 MHz); ±0.5 dB (more than 80 to 250 MHz); ±0.8 dB (more than 250 to 1000 MHz)
Linearity deviation
+2/-3 dB (0.022 to 0.05 A/m); ±1 dB (0.05 to 0.1 A/m); ±0.5 dB (0.1 to 3 A/m); ±1 dB (3 to 16 A/m); +2/-3 dB (18 to 100 μW/cm²); ±1 dB (100 to 380 μW/cm²); ±0.5 dB (0.38 to 340 mW/cm²); ±1 dB (0.34 to 10 W/cm²)
Isotropic deviation
±1 dB
Temperature response
+0.1/ -0,2 dB (0 °C to 50 °C, related to 23 °C); +0.1/ -0.5 dB (-20 °C to +50 °C, related to 23 °C)
Recommended calibration interval
24 months
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