Measuring electric
and magnetic fields
simultaneously
Complete Measurement System
with Dual Electric and Magnetic Field
Probe for Frequencies up to 100 MHz
Covers Most Industrial Equipment Fast and Reliable Measurements Extremely Easy to Use Low Cost, Compact and Lightweight RMS Detection
Applications
- RF Heat Sealers and Vinyl Welders
- Semiconductor Process Equipment
and Glass Deposition
- RF Induction Heating
- Dielectric Dryers and Heaters
- Plasma Generation Systems
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DESCRIPTION
The Narda Models NIM-511 and NIM-513 combine an unprecedented ease of operation with powerful measurement
capabilities. It provides the industrial plant manager and
safety professional with an accurate and inexpensive
solution for proving compliance with regulations that cover
exposure to RF radiation. Both models provide a complete
measurement system comprised of an extremely easy to
operate meter and a probe that contains sensors to
measure both the electric (E) and magnetic (H) field
components of an electromagnetic wave.
OPERATION
The NIM-511 and the NIM-513 were designed to make
measurements a simple process that does not allow the
most common mistakes to happen.
NO CHANGING PROBES TO MEASURE THE ELECTRIC
AND MAGNETIC FIELDS - the probe contains two sets of
sensors that separately measure each field. Simply press
the E/H Field key combination to change the field that you
are measuring.
NO RANGE CHANGES - the meter automatically displays
a numeric value over the probe’s entire measurement
range.
APPLICATIONS
Major safety standards worldwide require that both the
electric and the magnetic field components (E and H fields)
be measured for equipment operating below 300 MHz.
Most high power industrial equipment operates at one of
the frequencies allocated for Industrial, Scientific, and
Medical (ISM) applications. Two ISM frequencies - 27.12
MHz and 13.56 MHz – are used extensively. The majority
of heat sealers and induction heaters operate at 27.12 MHz
while most semiconductor processing equipment operates
at 13.56 MHz. The NIM-513 operates from 10 MHz to 42
MHz and is adjusted to the reference calibration frequency
at 27.12 MHz. The NIM-511 has a much broader sensor
that operates from 300 kHz to 100 MHz and is adjusted to
the reference calibration frequency at 13.56 MHz.
RF energy can cause the body to be heated beyond its
ability to thermally regulate itself. Since 1987 OSHA has
had the authority to cite employers for exceeding the limits
specified by “state-of-the-art, scientific standards.” OSHA
has chosen the IEEE C95.1-2005 Standard for
enforcement of non-ionizing radiation safety. This IEEE
standard includes many changes from earlier standards
and is considerably more complex. The Maximum
Permissible Exposure (MPE) limits for Controlled Environments are:
NO CONFUSING SCALES - simply read the digital display,
including the unit of measure.
NO DIFFICULT ZEROING - Auto Zero is executed repetitively every 15 minutes.
NO FORGETTING THAT YOU ARE IN THE MAXIMUM
HOLD MODE - the meter clearly displays the word “Max”
when you are in the maximum hold mode.
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Frequency
13.56 MHz 4.89 54.4
27.12 MHz 1.22 13.6
40.68 MHz 1.00 6.04
Table: IEEE C95.1-2005 exposure limits for controlled environment
For countries which follow the ICNIRP recommendations
the exposure limits are 1 mW/cm
mentioned above.
E Field
(mW/cm2)
2
for the frequencies
H Field
(mW/cm2)
SPECIFICATIONS
NIM-511 NIM-513
DISPLAY AND FUNCTIONS
Display type Transflective LCD, monochrome, LED backlight
Display size 4 cm (1.5”), 128 x 64 dots
Refresh rate 400 ms
Result display E-field or H-field value (selectable, 4 digits)
Result units mW/cm2, W/m2, V/m, A/m
ACT - displays the actual value
Result types (isotropic, RSS)
Hold Hold button to freeze the value that is currently displayed
Zeroing Automatic zeroing after power-on and repetitively every 15 min
MEASURING
Field type Electric (E-) field and magnetic (H-) field
Frequency range 300 kHz to 100 MHz 10 MHz to 42 MHz
Measurement range
CW damage level 50 W/cm2
Sensor type Two diode based systems for E-field and H-field
435 Moreland Road
Hauppauge, NY 11788, USA
Phone: +1 631 231-1700
Fax: +1 631 231-1711
E-Mail: NardaSTS@L-3COM.com
www.narda-sts.us
Narda Safety Test Solutions Srl
Via Leonardo da Vinci, 21/23
20090 Segrate (Milano), Italy
Phone: +39 02 2699871
Fax: +39 02 26998700
E-mail: support@narda-sts.it
www.narda-sts.it
® Names and Logo are registered trademarks of Narda Safety Test Solutions GmbH and L3 Communications Holdings, Inc. - Trade names are trademarks of the owners.
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