T&D TR-81 User Manual - page 11
introduction
9
COMMUNICATING
The COM mark appears when communication is taking place between the unit
and your computer, i.e. when setting up recording, or downloading data.
FULL
The FULL mark appears when 8000 units of data have been recorded in
ONETIME Mode. This indicates that recording has stopped and it is important
to download the data into your computer as soon as possible.
OVER THE MEASURABLE RANGE
The Hi mark indicates that the temperature is over the measurable range of
600°C.
BELOW THE MEASURABLE RANGE
The Lo mark indicates that the temperature is below the measurable
range of -200°C.
BATTERY LIFE WARNING
The BAT message appears whenever the battery power is low. Re-
cording is still possible while lamp is on, but when blinking recording
will be discontinued. Please change the battery as soon as you see
the warning lamp come on.
SLEEP MODE
The battery lamp will begin to blink when power is very low, record-
ing will stop and the unit will automatically go into sleep mode. It is
important to change the battery before it begins to blink.