Radiated Immunity
Field Strength Meter
The Frankonia EFS field strength meters especially have been designed for field strength measurements / field homogeneity measurements during radiated immunity tests according to IEC/EN 61000-4-3 / -20. But it could also be used to measure the radiation exposure of the environment, for example at workplaces or flats.
The EFS is an isotropic miniature E-field sensor to ensure that the E-field will not be influenced by the size of the sensor itself. It even does not need any metering unit (which could also influence the field strength), because of its direct fibre optic output which allows direct connection of the sensor to the USB-interface of the control PC or laptop. The measuring values may be displayed via the individual IEC/EN 61000-4-3 / -20 control software or via a Windows software included in the delivery.
The EFS-10 / EFS-100 cover the frequency range from 10 kHz up to 9.25 GHz and are able to detect electrical field strength in the range from 0.14 V/m to 500 V/m (depending on type).
The sensors are battery operated by Li-Mn batteries, which allow a maximum operation time of 100 hours before recharging.
Features
Technical specifications | EFS-10 | EFS-100 |
Frequency range | 10 kHz-9.25Ghz | 100 kHz – 9.25 GHz |
Flatness | ||
With frequency correction OFF | 0.1 Mhz-150 MHz: 0.4 dB 0.05 MHz-6000 MHz: 1.6 dB 0.03 MHz-7500 MHz: 3.2 dB |
1 Mhz-150 MHz: 0.8 dB 0.5 MHz-6000 MHz: 1.6 dB 0.3 MHz-7500 MHz: 3.2 dB |
With frequency correction ON | 0.05 MHz-7500MHz: 0.4 dB | 0.3 MHz – 7500 MHz: 0.4 dB |
Dynamic range (single range) |
0.5-500 V/m (60 dB) | 0.14 – 140 V/m (60 dB) |
Resolution | 0.01 V/m | |
Sensors | 6 monopoles | |
0.5 dB (0.3 dB typical) (@50 MHz) | ||
Overload | 1000 V/m | 300 V/m |
Measured data X-Y-Z axis | sampling simultaneous on X-Y-Z axis | |
Sampling rate | 22 S/s to 0.03 S/s, depending on filter setting | |
Digital filter | Low-pass 2.3 Hz to 28 Hz; 80 dB notch 50/60 Hz | |
Internal battery | 3V-5mAh, rechargeable Li-Mn | |
Operation time | 100 hours @ 0.4 S/s, 28 Hz filter | |
Recharging time | 48 for full operation time, Partial charging allowed, e.g.: 8 hrs rech. = 12 hrs operation @ 5 S/s 1 hr rech. = 5 hrs operation @ 0.4 S/s |
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Internal data memory | serial number, calibration date, calibration factors, firmware version | |
Communication | bidirectional fiber optic link | |
Fibre optic connector | HFBR-0500 | |
Fibre optic length | 10 m standard (20/40 m) optional | |
Fibre optic to PC connection | fibre optic to RS232 converter, RS232 to USB converter | |
PC Software | Displays field, temperature, battery, sampling, filters, averaging, frequency setting, manual data logging as text file | |
Operating temperature | -10 °C ÷ +50 °C | |
Temperature reading | 0.1 °C resolution | |
Battery voltage reading | 10 mV resolution | |
Dimensions | 53 mm overall, (body: 17 mm diameter, sensor: 17 mm) | |
Weight | 25 g, including 1 m fibre optic pigtail | |
Probe holder tip | 1/4 20 UNC female | |
Included accessories | 10 m fibre optic cable, optical/RS232 adapter + RS232/USB adapter, software, battery charger |
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Optional accessories | 20 m fibre optic cable, order-no.: EFS-OF20 40 m fibre optic cable, order-no.: EFS-OF40 |
The Frankonia EFS field strength meters especially have been designed for field strength measurements / field homogeneity measurements during radiated immunity tests according to IEC/EN 61000-4-3 / -20. But it could also be used to measure the radiation exposure of the environment, for example at workplaces or flats.
The EFS is an isotropic miniature E-field sensor to ensure that the E-field will not be influenced by the size of the sensor itself. It even does not need any metering unit (which could also influence the field strength), because of its direct fibre optic output which allows direct connection of the sensor to the USB-interface of the control PC or laptop. The measuring values may be displayed via the individual IEC/EN 61000-4-3 / -20 control software or via a Windows software included in the delivery.
The EFS-300 / EFS-500 cover the frequency range from 300 kHz up to 18 GHz and are able to detect electrical field strength in the range from 0.17 V/m to 800 V/m (depending on type).
The sensors are battery operated by Li-Mn batteries, which allow a maximum operation time of 100 hours before recharging.
Technical specifications | EFS-300 | EFS-500 |
Frequency range | 300kHz-18GHz | 300kHz-26.5GHz |
Flatness | 0.10MHz-18000MHz: 1.8dB | |
With frequency correction OFF | 3MHz-8200MHz: 1.4dB 1MHz-1200MHz: 2.4dB 0.6MHz-18000MHz: 3.8dB |
10 MHz-18000 MHz: 1.8dB 3MHz-23000MHz: 3.2dB |
With frequency correction ON | 0.05 MHz to 7500 MHz: 0.4dB | 0.3MHz-26500MHz: 0.4dB |
Dynamic range (single range) | 1.5 to 1500 V/m (60dB) | 0.4-800 V/m (66dB) |
Resolution | 0.01 V/m | |
Sensors | 6 monopoles | |
Overload | 350 V/m | 1600 V/m |
Measured data X-Y-Z axis | sampling simultaneous on X-Y-Z axis | |
Sampling rate | 22 S/s to 0.03 S/s, depending on filter setting | |
Digital filter | Low-pass 2.3 Hz to 28 Hz; 80 dB notch 50/60 Hz | |
Internal battery | 3V-5mAh, rechargeable Li-Mn | |
Operation time | 100 hours @ 0.4 S/s, 28 Hz filter | |
Recharging time | 48 hours for full operation time Partial charging allowed, e.g.: 8 hrs rech. = 12 hrs operation @ 5 S/s 1 hr rech. = 5 hrs operation @ 0.4 S/s |
|
Internal data memory | serial number, calibration data, calibration factors, firmware version | |
Communication | bidirectional fiber optic link | |
Fibre optic connector | HFBR-0500 | |
Fibre optic length | 10m standard (20/40m optional ) | |
Fibre optic to PC connection | fiber optic to RS232 converter, RS232 to USB converter | |
PC Software | Displays field, temperature, battery, sampling, filters, averaging, frequency setting, manual data logging as text file | |
Operating temperature | -10 °C ÷ +50 °C | |
Temperature reading | 0.1°C resolution | |
Battery voltage reading | 10mV resolution | |
Dimensions | 53mm overall, (body:17mm diameter, sensor: 17mm) | |
Weight | 25g, including 1m fiber optical pigtail | |
Probe mount | 1/4 20 UNC female | |
Included accessories | 10m fiber optical cable, optical RS232 adapter + RS232/USB adapter, software, battery charger |
|
Optional accessories | 20m fiber optic cable, order-no.: EFS-OF20 40m fiber optic cable, order-no.: EFS-OF40 |