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 Commercial Real-Estate Investment EMI-EMF Surveys

The prudent investor wants an EMI assessment that considers every possible factor that could cause an investment to become vulnerable. No one tests more and considers more factors than Elexana. This is why we consider ourselves the best choice for your professional survey.

We use the highest standard instruments, ISO 17025 certified-calibrated, to test from DC to 60 GHz, beyond IoT and 5G to satellite transmissions.

Insist on NIST ISO/IEC 17025 certified-calibrated instruments for all high-risk measurements, accurate assessments, replicable studies, and verifiable reports.

If your report does not include up-to-date ISO 17025 calibration certificates of the testing instruments used by your technical consultant, it is not a professional report.

What is the Purpose of an EMF Measurement Survey?

  • Assess your property to develop solutions for the safety of all occupants

  • Assess your local environment for remediating electromagnetic interference

  • Assess your property to design shielding or other mitigation

  • Assess a building or new construction for the potential for geomagnetic structural damage

  • Help educate the client and answer all EMF-related questions in easy-to-understand language

No inspection in America conducts as complete an electromagnetic field assessment as Elexana LLC.

Using an oscilloscope, we even measure your ground rod impedance and then verify how well your building is grounded. Then, we suggest solutions to your engineering staff or electrician on how to improve your grounding system.

Elexana’s Commercial EMI/EMF Survey CHECKLIST

  1. Stray Current can enter your building via water, gas, and coaxial internet service lines or your HVAC system. It is measured in amperes and flux density. Be sure your consultant can provide solutions compliant with the National Electric Code, NEC.

  2. Complete Grounding System assessment check and measuring in mV, amperes, and fundamental frequencies on each; often, they are not 60 Hertz. This check is for two tests: the EGC Equipment Ground Conductor System and the Overload Lightning Protection System. Singular to Elexana LLC, we measure your grounding system's impedance to ensure that it is < 25 Ohms or < 5Ω for hospitals and technological centers.

    • (We can also conduct a soil resistivity test with a state-of-the-art 4-point ground rod Wenner Test and calculate how many ground rods you require to reach the NEC requirement of < 25 Ω, upon request.)

  3. AC Magnetic Fields to 30 MHz, indoors and outdoors, must be measured. Most measure 1 MHz at best, but we include the magnetic fields from HF High-Frequency sources. The spectrum range between 1 - 30 MHz is the most overlooked bandwidth because the equipment to measure this bandwidth correctly is so expensive. This may be why this ubiquitous field is not discussed much but should be included in every assessment. We identify and isolate the size, shape, coupled frequency bands, velocity, and all co-signaling fields. We identify source points and propose the best solutions. Many of these sources can be remediated. AC Magnetic emissions from your appliances and other source points, such as power lines, electrical conduits, risers, and heating panels, must be measured. If your work requires power tools, then your tools need to be measured. Your consultant must be trained and qualified to identify wiring errors and instruct your electrician on fixing them.

  4. AC Electric Fields from 5 Hertz up to the 5G Network., measured in Volts, Amperes, and Watts per meter (V/m, A/m, and W/m.)

  5. DC Magnetic Fields to > 100 Hz, measured in mG with a state-of-the-art DC Magnetometer used for scientific research. Geomagnetic stress can be an issue for some locations.

  6. DC Electrostatic Fields, measured for source-point identification. (We measure this in V/m for commercial interference applications and surface voltage for those with pacemakers and/or heart conditions.) Be sure to receive a solution plan.

  7. Epidermal Voltage, measured at the workstations to help determine and remediate source points. Much of this remediation work is often provided during an assessment. We usually measure our epidermal voltage as a reference. Clients can opt to have their voltage measured too.

  8. Electromagnetic Interference, EMI, often incorrectly termed Dirty Electricity (DE) measured on the phase, neutral, and ground using an oscilloscope amplitude and FFT. Also, measuring airborne EMI is essential. (To only use a plug-in Broadband EMI Line Meter to sell wall outlet filters is an overdone sales tactic to ramp up commissions.) We use state-of-the-art equipment to make this assessment.

  9. Radio Frequencies for the 5G Network, At Elexana, we measure RF with certified-calibrated tools to 60 GHz.

    Note: The consultant should consider more than power density levels: the number of signals and frequency clusters, reflection rate, phase distortions, signal coherence, multi-path interference, and more. Only measuring peak levels does NOT tell the whole story for providing the best RF solutions.

  10. Baseline Testing of all Ambient Fields: A full and final conclusive EMF assessment of all emissions entering the home from outdoors or the surrounding apartments versus what is produced within the home. Make sure the consultant provides clear solutions. Simply recommending that you get some distance from a source point is not a professional solution.

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