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NOTICE - Possible Instrument Measurement Error Source

Not an original health-effects study

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A government notice warns that some Holaday 1500 and Narda 8100 microwave survey meters may give erroneous readings due to radio frequency interference.

Plain English Summary

Summary written for general audiences

The notice describes a possible radio frequency interference problem where oven leakage fields enter the readout box and may cause erroneous readings. Users should keep the readout box as far from the microwave oven and its leakage fields as possible by keeping the cable extended. Calibration is generally needed only once a year, not every six months, unless probe damage or instrument defect is suspected.

Why This Matters

The notice comes from the Electromagnetics Branch of the Bureau of Radiological Health within the Food and Drug Administration. The spacer cone covers are clear covers placed on the cones specifically to reduce damage during oven measurements.

Cite This Study
Unknown (n.d.). NOTICE - Possible Instrument Measurement Error Source.
Show BibTeX
@article{notice_possible_instrument_measurement_error_source_g3997,
  author = {Unknown},
  title = {NOTICE - Possible Instrument Measurement Error Source},
  year = {n.d.},
  
  
}
No DOI on file for this study.

Quick Questions About This Study

Some Holaday 1500 and Narda 8100 microwave oven survey meters may have a radio frequency interference problem.
Oven leakage fields enter the readout box and may cause erroneous readings.
Keep the readout box as far away from the microwave oven and its leakage fields as possible by keeping the cable extended.
Do not remove the spacer cone covers when performing oven leakage measurements because they reduce damage to the cones.
Calibration is generally necessary only once a year, so instruments should be sent at one-year intervals unless probe damage or instrument defect is suspected.