Atec NIM-511, NIM-513 User Manual

INDUSTRIAL FIELD METER
NIM-511, NIM-513

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)