GB
Non-contact fever thermometer FT 90
8. Error messages
Error
Problem
message
Measurement during self-test,
device not yet ready for measure-
ment.
Room temperature below 10 °C or
over 40 °C (<50 °F, >104 °F).
(1) Forehead temperature mode:
The temperature recorded is
higher than 42.2 °C (108 °F).
(2) Object temperature mode: The
temperature recorded is higher
than 80 °C (176 °F).
(1) Forehead temperature mode:
The temperature recorded is
lower than 34 °C (93.2 °F).
(2) Object temperature mode: The
temperature recorded is lower
than -22 °C (-7.6 °F).
The batteries are empty.
9. Batteries
The device requires two AAA (LR03) batteries.
• Open the battery compartment.
Use a pointed object to press down on the battery
compartment lock and at the same time slide the
battery compartment downwards.
32
Solution
Wait until the forehead symbol stops flash-
ing.
Room temperature must be between 10 °C
and 40 °C (<50 °F, >104 °F).
Operate the thermometer only between
the specified temperature ranges. In the
event of a repeated error message, con-
tact your retailer or Customer Services.
Operate the thermometer only between
the specified temperature ranges. In the
event of a repeated error message, con-
tact your retailer or Customer Services.
Replace the batteries.