Thermo Fisher Scientific Thermo Scientific Temp 340 - Manual (Page 27)

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The buzzer will sound for 30 seconds, or
until the reset (F2) is pressed, at the end
of the countdown.
To reset the timer, select “restart” (F2) it.
You display should look like this:
To repeat the functions, select F2
Note:
The °C/ °F function is disabled when the
count down function is enabled. To
activate the
o
C/
o
F function on
measurement screen, please go into the
Flashing
announciator
indicates that
the countdown
has expired