Thermo Fisher Scientific Alpha pH 100 - Manual (Page 14)

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the “CAL” and “PH” display blinks alternatively. Press ▼
key once, the display shows “CAL”“
o
C” blinking.
2. Press ENTER and the display alternatively shows “Atc”
and “On” or “Atc” and “OFF”. Use ▲ and ▼ keys to
choose between both ATC ON and ATC OFF.
5.5.2 ATC ON/OFF
ATC ON : If a PT 100 is connected,
use ▲ and ▼ keys to adjust the
temperature offset of the PT 100 by
±
5
°
C. Dip the temperature probe
into the sample liquid. Make sure
that the display is set to ATC ON,
press ENTER and the display now
shows the actual temperature
reading (blinking).
Use ▲ and ▼ keys to adjust the
reading to its actual temperature -
as measured by an external
thermometer. Once done, press
ENTER key and the display will
flash “CAL” “PH” alternatively.
SETUP
MODE
ENTER
A t c
SETUP
MODE
ENTER
On
SETUP
MODE
ENTER
23.5