operation and technique
what affects accuracy
Poor Probe Placement
No Probe Cover
Used Probe Cover
Lying on Pillow
Cerumen (ear wax)
Otitis Media (ear infection)
Wait for the “ready” beep and place the
probe snugly into the ear canal; correct probe
placement is essential for accurate readings.
Press and release the Start Button. The
thermometer will beep once. The green ExacTemp
light above the Start Button flashes, indicating
correct probe placement.
A long beep and a solid green ExacTemp light
signals the end of an accurate measurement.
Eject the used probe cover. For the next
measurement, put on a new, clean probe cover.
If the probe is placed incorrectly or was moved
while taking a temperature, the device beeps, the
green ExacTemp light goes out and POS (Position
To change default temperature scale: With the
device off, press and hold the
button for about
5 seconds. Release the
button when desired
scale is shown.
directions for opening
Remove the thermometer from the case and
attach a new probe cover. The device turns
button to recall the last temperature.
error messages and solutions
No probe cover is attached – Attach new, clean probe cover.
(POS = position error) The infrared monitor cannot find a temperature
equilibrium and allows no measurement – Clear the display by changing the
probe cover. Ensure that the positioning of the probe is correct and remains stable.
Ambient temperature is not within the allowed operating range 50-104 °F
(10-40 °C) or changing too rapidly – Allow the thermometer to remain for 30
minutes in a room where the temperature is between 50 and 104 °F / 10 and 40 °C.
System Error – Wait 1 minute until the thermometer turns off automatically, then
turn on again. If error persists reset the thermometer by removing the batteries and
putting them back in. If error still persists contact your Welch Allyn representative.
Battery is low, but thermometer will still operate correctly –
Insert new batteries.
Battery is too low to take correct temperature measurements –
Insert new batteries.
For support, please contact Welch Allyn at 800.535.6663
ThermoScan is a registered trademark of Braun GmBH
© 2013 Welch Allyn Inc. All rights reserved.
MC10117 SM2679Rev D
MC10117POS SM2679RevD Braun4000 Technique.indd 1
Advancing Frontline Care™
1/9/13 10:11 AM