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9. Error Messages
• Measured temperature too high AP : Displays «H» when
measured temperature is higher than 100.0 °C or 212.0 °F.
• Measured temperature too low AQ : Displays «L» when
measured temperature is lower than 0 °C or 32.0 °F.
• Ambient temperature too high AR : Displays «H» when
ambient temperature is higher than 40.0 °C or 104.0 °F.
• Ambient temperature too low AS : Display «L» when ambient
temperature is lower than 10.0 °C or 41.0 °F.
• Error function display BT : The system has a malfunction.
• Blank display BL : Check if the battery has been installed
correctly. Also check polarity (<+> and <->) of the battery.
• Flat battery indication BM : If the triangle icon is the only
symbol shown on the display, the battery should be replaced
immediately.
IR1DQ1-1
10. Cleaning and Disinfecting
Use an alcohol swab or cotton tissue moistened with alcohol (70%
Isopropyl) to clean the thermometer casing and the measuring
probe. Ensure that no liquid enters the interior of the thermometer.
Never use abrasive cleaning agents, thinners or benzene for
cleaning and never immerse the instrument in water or other
cleaning liquids. Take care not to scratch the surface of the probe
lens and the display.
11. Battery Replacement
This instrument is supplied with one lithium battery, type CR2032.
Replace with a new CR2032 battery when the triangle symbol
appears on the display BM .
Remove the battery cover by sliding it in the direction shown.
Remove the battery and replace with a new one BP .
EN
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