Question about Braun Irt 4520 Thermoscan Ear Thermometer

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Thermometer reading only says LO

When taking temperature, it now beeps a lot then simply say LO. have tried changing the batteries it makes no difference.

Posted by karen rome on

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why2for

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Have you tried replacing the disposable-lens filter ?
The manual is available at: http://brauntherms.com/downloads/IRT4020_4520_MNLA_U.0035_OM_25JAN11.pdf

Posted on May 25, 2014

  • why2for May 25, 2014

    LO means temperature is too low, less than 93.2F or 34C. Most common solution is to use a new, clean Lens Filter. We have always had to replace these regularly.

  • why2for May 25, 2014

    Care and cleaning The probe tip is the most delicate part of the thermometer. It has to be clean and intact to ensure accurate readings. If the thermometer is ever accidentally used without a lens filter, clean the probe tip as follows: Very gently wipe the surface with a cotton swab or soft cloth moistened with alcohol. After the alcohol has completely dried out, you can put a new lens filter on and measure. If the probe tip is damaged, please contact your authorized local service centre. Use a soft, dry cloth to clean the thermometer display and exterior. Do not use abrasive cleaners. Never submerge this thermometer in water or any other liquid. Store thermometer and lens filters in a dry location free from dust and contamination and away from direct sunlight. Additional lens filters (LF 40) are available at most stores carrying Braun ThermoScan.

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Problem:
Temperature taken is not within typical human temperature range (93.2 °F - 108 °F / 34 °C - 42.2 °C).

Solution:
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Hi.
  • 1 Consider that most digital thermometers take a temperature in less than 30 seconds, quickening the temperature-taking process for squirmy children.
  • 2 Read the thermometer's instructions carefully. Never throw the instructions away. Keep them near your digital thermometer.
  • 3 Wipe the thermometer probe with a soapy washcloth or a tissue dabbed in isopropyl alcohol or put on a clean probe, depending on your brand of thermometer.
  • 4 Turn the thermometer on.
  • 5 Use a gentle rocking motion as you insert the thermometer into the ear canal or rectum. Never push or cram the probe into the body. Forcing it causes pain, especially if there is swelling in the ear canal or rectum.
  • 6 Listen for the beep.
  • 7 Remove the thermometer.
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  • 9 Use the chart insert that comes with your thermometer to see what your normal reading should be.
  • 10 Clean your thermometer probe with a soapy washcloth and/or isopropyl alcohol before storing.
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