Thermo Scientific Orion DUAL STAR User Manual page 68

Incremental Techniques
8 . Rinse the electrode (ATC probe, stirrer probe and reference electrode, if
applicable) with distilled water, blot dry with a lint-free tissue and place the
electrode(s) into the sample . When the electrode and sample are ready, press
the f2 (next) key .
9 . Wait for the reading to stabilize . When the reading is stable, press the
f2 (yes) key .
10 . Use the numeric keypad and decimal key to enter the volume of the first
increment of standard, in mL, to be added to the sample and press the
f2 (accept) key .
11 . Add the first increment of standard to the sample and press the f2 (yes) key .
12 . Wait for the reading to stabilize . When the reading is stable, press the
f2 (yes) key .
13 . Use the numeric keypad and decimal key to enter the volume of the second
increment of standard, in mL, to be added to the sample and press the
f2 (accept) key .
14 . Add the second increment of standard to the sample and press the
f2 (yes) key .
15 . Wait for the reading to stabilize . When the reading is stable, press the
f2 (yes) key .
16 . The meter will display the result of the double known addition . Press the
f3 (log/print) key to save and end the double known addition, export the
data to the data log and export the data to a printer or computer, if a printer or
computer is connected to the meter and enabled in the setup menu .
Note: Press the f1 (escape) key to return to the measurement mode
without saving the double known addition.
17 . Press the f2 (next) key .
18 To perform a double known addition using the values that were entered for
the previous double known addition, press the f2 (yes) key . To perform a
double known addition and enter new values, press the f3 (no) key . To end
the incremental technique and return to the measurement mode, press the
f1 (escape) key .

Thermo Scientific Orion DUAL STAR pH/ISE Meter User Guide
™