Trouble-shooting
Error message Situation Solution
No probe cover is attached. Attach new, clean probe cover.
(flashing)
The infrared monitor cannot find
a temperature equilibrium and
allows no measuring.
POS = position error
Clear the display by changing the
probe cover.
Take care that the positioning of
the probe is correct and remains
stable.
Ambient temperature is not within
the allowed operating range
(10 – 40 °C or 50 – 104 °F) or
changing too rapidly.
Allow the thermometer to remain
in a room for 30 minutes where the
temperature is between 10 and
40 °C or 50 and 104 °F.
Temperature taken is not within
typical human temperature range.
HI will be displayed when
temperature is higher than
42.2 °C (108 °F)
LO will be displayed when
temperature is lower than 20 °C
(68 °F)
Make sure a new, clean probe
cover is attached and thermo-
meter is properly inserted.
Then, take a new temperature.
System error
If error persists,
If error still persists,
Wait 1 minute until the thermo-
meter turns off automatically,
then turn on again.
... reset the thermometer by
removing the batteries and putting
them back in.
... contact Welch Allyn.
Trouble-shooting
Error message Situation Solution
Battery is low, but thermometer
will still operate correctly.
Insert new batteries.
Battery is too low to take correct
temperature readings.
Insert new batteries.
Do you have any further
questions?
... contact Welch Allyn.
Replacing the batteries
The thermometer is supplied with two 1.5 V type AA (LR 6). For best
performance, we recommend Duracell
®
alkaline batteries.
Insert new batteries when the battery symbol appears on the display.
To open the battery compartment, depress the button in the door as
shown using a pen or other pointed object, while lifting the door.
Remove the batteries and replace with new batteries, making sure
the poles are in the right direction. Slide battery door back until it
snaps in place.
To protect the
environment,
dispose of
empty batteries
according to
national or local
regulations.
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