Microrad's mission is to design isotropic measuring systems
for electromagnetic safety. Our know-how is aimed at the sensors
of electric, magnetic, and electromagnetic fields and ranges
from static fields to millimeter waves. We have vanguard
solutions in each and every sector both for broadband and
selective measures. Our products have been developed in order to
operate in agreement with all principal international
regulations.
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.
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 999999
(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 ą2%) and
temperature (accuracy ą0.2°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 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.
Last Updated: April 7, 2021 Copyright Š 2001-2021
R. A. Mayes Company, Inc. An Electro Mechanical
Research and Development (EMRAD) Corporation, Company
Microrad
NHT 3DL reference meter for the European Directive 2013/35/E Data Sheet
