ELECTROMAGNETIC FIELDS
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MEASURE: WHY? MEASURE: HOW? MEASURE RIGHT! MONITOR OR METER? NARDA SAFETY TEST SOLUTIONS >

Measure: Why? ?Measurement determines whether the limitvalues for electromagnetic radiation speci-fied in laws, national regulations, and recommendations are being adhered to.This is essential for occupational safety andto protect the general public.?Measurement gives reassurance. It is themost important step in effective protection. Take maintenance work on an antennaarray, for example: Are the transmittersswitched off? Or is the field strength safe? Do the actual values agree with the theore- tical ones? ?Measurement gives facts. For example,public protection: On site measurementsshow the...

Measure: How? ?Only standard-compliant measurementsprovide comparable, reproducible, and legally defensible results.?The measurement results must be under-standable, even for someone who is notconstantly concerned with electromagneticfields.?The electric and magnetic fields must bemeasured separately in the near field. ?Non-directional (isotropic) measurement isdemanded by the standards.?The permitted field strengths depend onthe frequency. The measuring instrument must therefore be sensitive enough, have a wide dynamic range, and be capable offrequency selective field strength evalua- tion...

Measure right! ?Measurement means comparison with aknown quantity. Since field strength units are also defined by national standards, ourinstruments are calibrated against quanti-ties that are traceable to these standards.?Measuring equipment for outdoor usemust be robust, dustproof, and weather- proof, to keep working accurately in therough conditions of everyday use.?Simple operation avoids mistakes and leadsto reliable and dependable results.?Minimum down time: We calibrate instru-ments in our own laboratory in rapid time.Recalibration is recommended every one to three years, depending...

Monitor or meter? ?Personal monitors are worn on the bodyand give visual and audible warning whenthe field strength approaches the permit- ted limit value. Company safety officerscan use them to protect everyone whoseoccupation brings them into contact with electromagnetic fields, as well as trades-men and visitors who are only occasionallyexposed to them. Data logger functions record the exposure levels. ?Meters provide overall or detailed results,averaging and evaluating them automatic-ally if necessary. They are essential for operators, industrial safety officers, measurementservice...

THREE LOCATIONS ONE GOAL Our three sites are located at Hauppauge,Long Island (USA), Pfullingen (Germany) and Cisano (Italy). Our goal is to provide you, the user, with products tailored exactly to yourneeds, using the highest quality in cutting-edge technology. WHAT WE OFFER Our comprehensive range of products forhuman safety in electromagnetic fields (EMF) includes broadband measuring instru- ments, selective measurement equipment,monitoring stations, and personal radiationmonitors. Under our PMM brand, we offer instruments for assessing the electromag-netic compatibility (EMC) of...

?Occupational safety: Safety zones must bedefined and observed when working in theimmediate vicinity of antennas. SRM-3000 , the Selective Radiation Meter,shows the source and magnitude of indivi- dual contributions to the overall fieldstrength and evaluates them on site. Area Monitors keep an eye on electromag-netic fields, day and night. NBM-550 , the Narda Broadband Field Meter,uses isotropic E-field and H-field probes to measure the electric and magnetic field components simply, precisely, and non-directionally. RadMan and Nardalert , the clip-on moni-tors, keep an eye on your personal...

EFA-200/300 , the Electromagnetic FieldAnalyzer detects electric and magnetic fieldsfrom the lowest of frequencies right up to the high frequencies used in industry andmedicine. ELT-400 , the Exposure Level Tester, also measures pulsed magnetic fields in industryand the home. > ?Industrial safety: Low frequency and highfrequency welding equipment, RF heating for plastic welding, drying, bonding,coating whatever the application, thelimits must not be exceeded.?Human safety in medicine: MagneticResonance Imaging, magnet therapy, dia- thermy, hyperthermy ֖ the diagnosis must be correct, the...

?Directional radio antennas strongly concen-trate the radiation power, and radar equip-ment uses extremely high impulse powerlevels as well. Primarily, those who work close to such equipment need protection, but the exposure levels for the generalpublic also need to be checked. NBM-550 , the Narda Broadband Field Meter,can also measure the true power of pulsedelectric fields if fitted with a suitable measu- ring probe. SRM-3000 , the Selective Radiation Meter,can continuously register even short radar impulses with frequency-selective accuracy inTime Analysis mode. RadMan XT und Nardalert...

EFA-200/300 , the Electromagnetic FieldAnalyzer, detects electric and magnetic fields from the lowest of frequencies right up tothe harmonic frequency range. > SRM-3000 , the Selective Radiation Meter,selectively registers the fields due to the tele-communications channels. ?Power utilities use 50 or 60 Hz AC in trans-former stations and high tension lines;inverters and switched mode power sup-plies generate harmonics at several kilo- hertz.?Subways and railroads operate using highvalue direct currents or alternating currentsat 16 2/3, 50, or 60 Hz that cause magne-tic...

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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 > Narda Safety Test Solutions 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.com > Narda Safety Test Solutions GmbH Sandwiesenstrasse 7 72793 Pfullingen, Germany Phone: +49 (0) 7121-97 32-777 Fax: +49 (0) 7121-97 32-790 E-mail: support@narda-sts.de www.narda-sts.de > NSTS 1206-E0075A Technical improvements, errors and omissions...