NARDA nbm-520 User Manual - page 2
NSTS 0407E0232A-0.0
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Subject to change
DESCRIPTION
The Narda Broadband Field Meter NBM-520 is part of the NBM-500
family of test instruments. It measures non-ionizing radiation with utmost
accuracy and incorporates all the major basic measurement modes. In
contrast with the larger NBM-550, a memory for measurement results
has been deliberately left out of the NBM-520. The result is unbeatably
easy operation using just 4 buttons, so referring to the operating manual
is all but unnecessary.
Suitable measuring probes for electric and magnetic field strengths are
available for the frequency range from about 100 kHz up to 60 GHz. So-
called shaped probes which have frequency responses that weight the
results according to specific human safety standards are available in
addition to flat probes with flat frequency responses. All probes are
calibrated independently from the measuring instrument. They include a
non-volatile memory containing the probe parameters and calibration
data, so they can be used with any instrument in the NBM-500 family.
APPLICATIONS
The NBM-520 is used to make precision measurements to establish
human safety, particularly in workplace environments where high electric
or magnetic field strengths are likely to occur. Some examples are:
• Measuring field strengths to comply with general safety
regulations
• Establishing safe zones
• Measuring field strengths in the industrial environment, such as
plastics welding equipment, RF heating, tempering, and drying
equipment
• Measuring and monitoring field strengths around broadcasting
and radar equipment
• Measuring field strengths of cell phone transmitters and satellite
communications systems to demonstrate compliance with
human safety standard limit values
• Measurements for protecting users of diathermy equipment and
other medical devices that generate high-frequency radiation
• Measuring field strength in TEM cells and absorber chambers to
demonstrate electromagnetic compatibility (EMC)
Small, lightweight and rugged design –
ideal for use in rough environments
Changing the probe is quick and easy,
with no need to reconfigure the device