9. Error messages
Display / Problem
Display
Meaning
Measured
Temperature
too high
Measured
temperature
too low
Ambient tem-
perature too
high
Ambient tem-
perature too
low
Error function
display
Blank display
Dead battery
indication
Possible cause and
fault remedy
Displays «H» when
measured temperature
higher than 100.0 °C or
212.0 °F.
Displays «L» when mea-
sured temperature
lower than 0 °C or
32.0 °F.
Displays «H» in
conjunction with the
▲
«
» when ambient tem-
perature is higher than
40.0 °C or 104.0 °F.
Displays «L» in conjunc-
tion with the «
ambient temperature is
lower than 5.0 °C or
41.0 °F.
When system has mal-
function.
Please check if the bat-
tery has been loaded
correctly. Also check
polarity (<+> and <->) of
batteries.
If the steady battery
icon is the only symbol
shown on the display,
the batteries should be
replaced immediately.
▼
» when
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