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EFD-1891 FieldMan E-Field probe, 2MHz - 18GHz
  • EFD-1891 FieldMan E-Field probe, 2MHz - 18GHz

EFD-1891 FieldMan E-Field probe, 2MHz - 18GHz

EFD-1891

Isotropic measurement of electric fields from 2 MHz to 18 GHz using the Field Meter FieldMan®

Description

The probe detects electric fields from 2 MHz up to 18 GHz. This area covers the frequencies used for broadcasting, as well as applications for telecommunications, satellite communications and radar technologies. The probe’s high linearity and sensitivity make it ideal for checking human safety limit values in the general public and occupational environments. Two variants are available. A normal version with higher 50/60 Hz immunity and a version with fast response time and switchable integration time for pulsed signals.

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 and is accredited for the entire range. The calibration data is stored in the probe and is automatically taken into account during the measurement. 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
  • Excellent sensitivity starting at 0.6 V/m
  • Wide True RMS range up to 65 V/m
  • Fast response version available
  • 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
  • Accredited calibration included
Product Details
EFD-1891

Data sheet

Field
E-Field
Frequency range
2MHz - 18GHz
Protection class
IP54 (probe screwed on)
Type of product
FieldMan probes
Dynamic range (dB)
62.5
Measurement range, E-field
0.1 μW/cm² to 1.12 mW/cm² typ. (True RMS)
0.1 μW/cm² to 170 mW/cm² (CW)
0.6 to 65 V/m typ. (True RMS)
0.6 to 800 V/m (CW)
Type of frequency response
Flat
Continuous wave damage level
1100 V/m; 320 mW/cm²
Peak damage level
1400 V/m; 520 mW/cm²
Sensor type
Diode based system
Directivity
Isotropic (Tri-axial)
Spatial assessment
3 separate axes
Sampling rate
Part no. 2462/02: 5 Hz / 265 ms (with higher 50/60 Hz immunity)
Part no. 2462/23: 5 Hz / 265 ms and 900 Hz / 2.3 ms switchable
Temperature sensors
Integrated sensors for displaying the ambient temperature, for automatic offset compensation and for compensation of the temperature response
Self-test
Interface function test and sensor test for short circuit and interruption of diodes
Flatness of frequency response
+1/-1.5 dB (10 MHz to 3 GHz)
+2/-1.5 dB (more than 3 GHz to 11 GHz)
Linearity deviation
±0.5dB (4 to 300 V/m)
±0.5dB (4.2 μW/cm² to 24 mW/cm²)
±0.5dB (4.2 μW/cm² to 24 mW/cm²)
±2dB (0.1 to 4.2 μW/cm²)
±2dB (0.6 to 4 V/m)
±2dB (300 to 800 V/m)
Isotropic deviation
±1 dB (10 MHz to 5 GHz)
Recommended calibration interval
24 months
Attachments
Download
FieldMan Brochure

FieldMan Brochure, v. NSTS 03/23 E0384B, English

Download (6.51MB)
Datasheet Probe EFD-1891

Datasheet Probe EFD-1891, v. NSTS 0723-E0398A, English

Download (221.51KB)
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