8. Error Messages
Display /
Problem
Display Meaning
Measured
temperature too
high
Measured
temperature too low
Ambient
temperature too
high
Ambient
temperature too low
Error function
display
Blank display
Dead battery
indication
Possible cause and
fault remedy
Displays «H» when
measured temperature
higher than 42.2 °C
(108.0 °F).
Displays «L» when
measured temperature
lower than 34.0 °C
(93.2 °F).
Displays «H» in
conjunction with the
«▲» when ambient
temperature is higher
than 40.0 °C or 104.0 °F.
Display «L» in
conjunction with the
«▼» when ambient
temperature is lower
than 16.0 °C or 60.8 °F.
When system has
malfunction.
Please check if the
battery has been loaded
correctly. Also check
polarity (<+> and <->) of
batteries.
If the steady battery
icon is the only symbol
shown on the display,
the battery should be
replaced immediately.
8