American Diagnostic Corporation (ADC) 421 Adtemp - Manual (Page 4)

4. Control Displays and Symbols
• All segments displayed: Press the ON/OFF button to turn on the unit, all segments will
be shown for 2 seconds.
• Memory: The last reading will be shown on the display automatically for 2 seconds.
• Ready for measurement: The unit is ready for measurement, the °F or °C icon will keep
flashing.
• Measurement complete: The reading will be shown on the display with the °F or °C
icon flashing, the unit is ready again for the next measurement.
• Out-of-ear temperature indication: A crossed-ear-icon shown on the display if the read-
ing falls outside the range 89.6 ~ 108.0 °F (32.0 ~ 42.2 °C).
• Low battery indication: When the unit is turned on, the battery icon will keep flashing to
remind the user to replace the battery.
5. Directions for Use
1. Press the ON/OFF button. The display is activated to show
all segments for 2 seconds.
2. The last measurement reading will be shown on the display
automatically for 2 seconds with the M icon.
3. When the °F or °C icon is flashing, a beep sound ismheard and the thermometer is
ready for measurement.
4. Straighten the ear canal by pulling the ear up and back to
give a clear view of the eardrum.
• For children under 1 year: Pull the ear straight back.
• Children aged 1 year to adult: Pull the ear up and back.
5. While gently pulling the ear, insert the probe snugly into the ear canal and press the
START button. Release the button and wait for the beep sound. This is the indication that con-
firms the end of measurement.
6. Remove the thermometer from the ear canal. The display shows the measured tempera-
ture.
NOTE: In order to ensure accurate readings, please wait at least 30 seconds
after 3-5 continuous measurements. Accumulation of ear wax on the probe can
result in less accurate temperature readings or cross infection between users.
Therefore, it is essential that a clean probe is used before each measurement.
For cleaning, please follow the instructions in the Cleaning and Disinfecting
section. After cleaning the probe with alcohol, it is necessary to wait 5 minutes
before taking the next measurement, in order to allow the thermometer to reach
its operating reference temperature.
10 short beeps will sound when the temperature is higher than 99.5 °F (37.5 °C) in •
order to alert the patient that he/she may have a fever.