MICRORAD ELECTROMAGNETIC RADIATION MEASUREMENT SAFETY INSTRUMENTS

MICRORAD METERS

Microrad provide Probes and Meters to measure Electromagnetic Fields (with 14 Unique and Valuable features).

For manufacturers selling to the European Union (EU), this is a requirement of health and safety Directive 2013/35/EU regarding the exposure of workers to electromagnetic fields

METERS – NHT SERIES

The NHT series is available in three models.
• NHT 310 broadband meter from 0 Hz to 40 GHz. Integrated GPS
• NHT 3D complex signal analyzer with selectivity from 1 Hz to 400 kHz and broadband operation mode from 100 kHz to 40 GHz, remote analysis of the time/frequency domain via optical fiber. Integrated GPS.
• NHT 3DL complex signal analyzer with selectivity from 1 Hz to 1 MHz and broadband mode from 100 kHz to 40 GHz. Time/frequency domain instrument analysis, WI-FI migration of the user interface on Android and OS smart phones. External GPS.

All meters work with interchangeable probes. They are made of aluminum/magnesium alloy and have an operating autonomy of more than 24 hours.

NHT 3DL THE NEW REFERENCE METER FOR EU DIRECTIVE 2013/35/EU

• The NHT 3DL has been designed to measure electromagnetic fields in compliance with all the main international standards and regulations. This device is able to adapt to future regulatory requirements using its completely re-programmable system and structure.

• NHT 3DL is ready for the 5G challenge, for the automotive/railway electric traction industry, the medical diagnostics field and wherever regulated industrial activities exist.
• The NHT 3DL has been specifically designed to provide on board measurements of electromagnetic field characteristics in both time and frequency domains.

• The bandwidth in both modes is 1 MHz.

• Thanks to this solution it is possible to analyze and store complex waveforms with transitory/pulse features.

• In the FFT Analysis mode, the device covers the 1 MHz band in four decades, 1/10/100/1,000 kHz with 1,000 points resolution per decade and automatic peak search markers.

• In the Oscilloscope mode, it displays high-definition time frames with manual trigger function and Amplitude/Time marker.

• In the broadband operating mode with RF probes from 100 kHz to 40 GHz, it demodulates the pulse signal base band up to 500 ns, with automatic measurement of Tau, PRF and Duty Cycle values.

•This mode has been specifically designed for the Radar sources recognition and measurement.

• NHT 3DL can be completely remotely controlled via fiber optic or wireless (Wi-Fi) connections.

Microrad NHT 3DL reference meter for the European Directive 2013/35/E Data Sheet

NHT 3D COMPLEX SIGNALS ANALYZER 0HZ-40GHZ

• Time/Frequency domain measurements: Selective Mode: 0Hz – 400 kHz, Broadband mode: 100kHz -40GHz

• Continuous Dynamic Range>100 dB (without range changing)

• Automatic calculation of the weighted peak (WP) according to ICNIRP 2010 guidelines

• Automatic calculation of the field according to the ICNIRP index II98

• Mask with limit for the Safety standards (public or occupational)

Microrad NHT 3D Analyzer for Complex Signals DC 40GHz Data Sheet

Microrad NHT 3D Analyzer for Complex Signals DC 40GHz Users Manual

NHT 310 BROADBAND EM FIELD METER: 0HZ-40GHZ

• Measurements, via different probes, broadband from 0 Hz up to 40 GHz

• Interchangeable probes for Electric, Magnetic and Electromagnetic Field Measurements

• GPS and temperature sensor embedded on board

• Multiple monitoring

• Up to 70 hours of autonomy, over 24 hours of recording

Microrad NHT 310 Electromagnetic Field Meter DC 40GHz Data Sheet

Microrad NHT 310 Electromagnetic Field Meter DC 40GHz Users Manual

NHT 310 F BROADBAND EM FIELD METER FOR 5G AND RADAR SIGNALS

• Capture and display of pulse signals up to 500ns

• Measurements, via different probes, broadband from 0 Hz up to 40 GHz

• Interchangeable probes for Electric, Magnetic and Electromagnetic Field Measurements

• GPS and temperature sensor embedded on board

• Multiple monitoring

• Up to 70 hours of autonomy, over 24 hours of recording

NHT 310 F Specifications Matrix

FREQUENCY
FrequencyRange	Selective mode: DC – 1 MHz Wide Band mode: 100 kHz – 40GHz
OPERATOR INTERFACE
Graphic Display	4.3” TFT, 272 x 480 pixel, 262K color
Backlight	LED, automatic or manual intensity adjustment, readable in the sun
Input devices	Touch Screen and keypad
MEASUREMENT FUNCTIONS
Measurement units	V/m, kV/m, A/m, W/m2, mW/cm2,, uW/cm2, uT, mT, Gauss, % (depending on the probe)
Display measurement range	From 0,00001 to 999’999 (depending on the probe and on the selected unit)
Refresh period	4 times per second
Result types	r.m.s. instantaneous and peak, isotropic and individual Cartesian components
Time average	r.m.s. value on a moving window selectable from 1 sec to 24 hours
Space average	Single acquisitions average value
Max Hold	Display of the r.m.s. instantaneous value
Combined mode	Simultaneous display of electric and magnetic field values (series 33 probes)
Time measurement	Minimum (up to 500 ns) and maximum pulse width measurement and duty cycle
GRAPHIC FUNCTIONS
Data Logger	Time diagram of the measured values, selectable among: r.m.s. instantaneous or peak, time average. The window length can be set from 1 minute to 48 hours
Oscilloscope	High resolution diagram of the signal in the time domain
Marker	Graphic markers with indication of the selected value
Trigger	Programmable threshold for exceeding the instantaneous peak r.m.s. value
ACQUISITIONS
Single / continuous acquisitions	Saving of all the data presented by the instrument, with a settable interval, between one memorization and the next, from 1 to 60 seconds
Acquisition memory	Removable memory card; with the provided memory over 1 million measurements in acquisition mode or over 200 seconds in high resolution mode can be stored
GENERAL SPECIFICATIONS
Operation time	> 24 hours (backlight and external accessories off)
Charging time	3.5 hours
Integrated sensors	Humidity (accuracy ±2%) and temperature (accuracy ±0.2°C)
Interface	USB
Operating temperature	-10 °C to +50 °C
Storage temperature	-20 °C to +70°C
Humidity	5 to 90%, non-condensing
Size (h x w x d)	170 x 85 x 31 mm (without probe)
Weight	650 g (including battery, without probe)
Country of origin	Italy
ACCESSORIES
Included accessories	Rigid case, power charger, protective silicone shell, USB cable, application software and user manual in electronic format, ISO 9001÷2015 Standard IEEE 1309-2013 calibration certificate
Optional accessories	GPS sensor, Wi-Fi module, Fiber optic module, Power Bank, ISO 17025 accredited calibration certificate

Microrad NHT 310 F Electromagnetic Field Meter DC 40GHz Data Sheet

MICRORAD PROBES

Click on the model of the probe to download the data sheet

Find the Probe for your application!

Microrad Probe Model Matrix

EMF18-G Sensor for EMC Applications

• Frequency band 10 KHz – 18 GHz

• Dynamic Range 0,5 – 500 V/m

• Sample Rate (Max) 20 mS

• Temperature Compensation 0 – 40 °C

• +/- 0.8 dB max with Normalization

• Operational Autonomy > 45 hours

• Possibility to simultaneously use up to eight Probes using the same SW release

Microrad EMF18-G Electromagnetic Field Probe 10KHz 18GHz Data Sheet

MICRORAD SOFTWARE with PC Interface

MICRORAD OFFERS 3 SOFTWARE PACKAGES FOR THEIR METERS AND SENSORS

• Waves Software for the NHT 3D meter

• MicroLink Software for the NHT 310 meter

• EMC Viewer Software displays data from 8 Sensors Simultaneously

WAVES SOFTWARE FOR THE NHT ED METER

Microrad Waves is a software application which allows the user to interact with the NHT 3D meter. The Waves application allows the operator to perform domain analysis and frequency measurements in both real time and in post processing mode using data recorded during monitoring. Waves is easy to use, modern (state of the art) and intuitive. It interfaces with the NHT 3D meter to provide an optimal measuring device. This software application provides the operator with an integrated system capable of performing fully automated analysis in the time and frequency domain of ELF complex signals. The application is suitable for analyzing complex and pulse signals in conjunction with a PC / Tablet connected via fiber optic (through a converter Optical / USB).

Main functions:

Marker and simultaneous reading Amplitude/Time/Frequency
Zoom and Pan
Masks selectable according to the reference Standard
Manual or Automatic trigger
Simultaneous calculation of the indexes: WP10, II98, IB50, IRSS
Suppression of spectral contributions according to the standard EN 50 500

All the displayed information can be exported as image or data. Waves can be installed on systems running Microsoft Windows XP, Vista, Windows 7, and 8 (32 or 64 bit).

MICROLINK SOFTWARE FOR THE NHT 310 METER

The software used in conjunction with the NHT 310 meter, provides the remote management of the meter via optical fiber on PC through Optical/USB converter. The software is direct and intuitive. It graphically displays the amplitude/time output and reproduces the user interface in real time. Complete with keyboard and graphic display, and provides the table with all the data related to monitoring.

The data measured via single or multiple monitoring are listed in a table providing the following information

Date/Time
Axis X, Y, Z
ISO value
AVG value
MAX value
Temperature
Type of Probe (clicking on the specific field opens a window with data from the corresponding probe).
GPS Lock/Off
GPS coordinates

In the amplitude/time mode pan, zoom, min and max functions are available, and the operator can select linear or logarithmic scale. The graph allows the display of each single axis, the resulting, of the mean and temperature value. Additional software functions: Data export Alarm threshold setting (buzzer) Moving average sample rate Sample rate and programmed start of the monitoring Date and time setting

EMC VIEWER SOFTWARE DISPLAYS DATA FROM 8 SENSORS SIMULTANEOUSLY

The EMC Viewer allows the user to connect to a virtually unlimited number of sensors (currently configured for up to 8 sensors simultaneously). The software is simple and intuitive, it displays the current values and trends time/frequency allowing to export data and images.

Displayed information:

Unit of Measure of the Field (selectable sequence: V/m, A/m, Wm2, mW/cm2)
Indicator of the level of battery charge, percentage and graph
Actual value of measured field
Maximum value of the measured field
Temperature (°C)
Value of the field measured on each axis X, Y, Z
Selectable filters
Selectable correction factors in the frequency domain

Other functions:

Data and images export

Trigger threshold level of acquisition

Zoom

Amplitude/Time Marker

Start/Stop Acquisition

Exp button allows the operator to export as an image file of the graph currently displayed, or export the data in Excel format.