Narda NBM-550 Broadband Field Meter, 2400/101B | 0 - 90 GHz

ANSI/IEEE C95.1:2019 offers safety limits for the protection of persons against the established adverse health effects of exposures to electric, magnetic, and electromagnetic fields in the frequency range 0 Hz to 300 GHz are presented in this standard. ANSI/IEEE C95.1:2019 sets these exposure limits as intended to apply generally to persons permitted in restricted environments and to the general public in unrestricted environments. These exposure limits are not intended to apply to the exposure of patients by or under the direction of physicians and medical professionals, as well as to the exposure of informed volunteers in medical or scientific research studies, and might not be protective with respect to the use of medical devices or implants. Compliance with IEEE C95.1:2019 In 2019 the IEEE updated the exposure reference levels (ERL), previously called maximum permissible expose (MPE). The ERL for unrestricted tier (lower tier) remain the same as in IEEE Std C95.1:2005. But the upper tier whole-body exposure ERLs above 300 MHz are different from those in IEEE Std C95.1:2005 to maintain a consistent 5× factor between tiers and to harmonize with ICNIRP guidelines. Per the chart below, the 2019 standard is significantly more stringent than the former 2005 standard, especially for frequencies above 2 GHz. As such, if you are using Narda Safety Test Solutions Shaped Response instruments that use the older IEEE C95.1:2005 “Shaping” for conducting RF Compliance measurements, you may exceed the ERL (MPE Limits) by a factor of two. Narda Safety Test Solutions has a full line of “Shaped Response” instruments which complies with the IEEE C95.1:2019 exposure reference levels (ERL).   Previous IEEE C95.1:2005 Standard The ANSI/IEEE C95.1:2019 test standard supersedes the previous C95.1:2005 standard. ANSI/IEEE C95.1:2005 offers recommendations to prevent harmful effects in human beings exposed to electromagnetic fields

Directive 2013/35/EU of the European Parliament and the of Council of 26 June 2013, also known as the EMF Directive, defines the minimum health and safety requirements for protecting workers from exposure to electromagnetic radiation. The directive encompasses all known biophysical effects and other effects caused by electromagnetic fields, focusing on the short-term effects of excessive electromagnetic radiation on employees. Directive 2013/35/EU details requirements for worker information and training, maintaining formal exposure and risk assessments, health surveillance and more. The directive covers a frequency range of 0 Hz – 300 GHz and is applicable to all occupational sectors; its exposure limit values and action levels are identical to, respectively, ICNIRP 2010 and ICNIRP 2009. The directive covers two general levels of EMF exposure: sensory effects and health effects.   First Level: Sensory Effects 0 Hz – 10 MHz At this lower level of exposure, workers experience transient issues with their senses and minor fluctuations in brain functions. One common side effect is magnetophosphenes, flashes of light that impair the person’s vision. The directive’s safety margins are such that workers should never experience these side effects, which are the byproduct of electromagnetic energy interfering with the central nervous system. The directive defines limits for these symptoms called Sensory Effects Exposure Level Values (ELVs).   Second Level: Health Effects 100 kHz – 300 GHz The second, higher level of exposure directly threatens the health of personnel in the area by damaging their body and peripheral nervous system. This manifests as thermal heating that stimulates nerve and muscle tissue. The directive establishes limits for these symptoms called Health Effects ELVs. To avoid workers being exposed to either level of radiation, the standard calls for action levels (ALs) to be adhered to,