Thermo Scientific Orion DUAL STAR User Manual page 27

Meter Setup
Electrode Serial Number
Press the ▲ / ▼ keys to highlight Electrode Serial Number and press the
f2 (select) key . Use the alphanumeric keys to enter a unique number and
letter combination for the electrode . The meter will automatically advance to the
next digit when no keys are pressed for three seconds . Press the f3 (clear)
key to delete any of the numbers or letters . Once the serial number is entered,
press the f2 (accept) key . Refer to the meter pullout guide for the location of
the letter keys on the numeric keypad .
Resolution
Press the ▲ / ▼ keys to highlight Resolution and press the f2 (select) key .
Press the ▲ / ▼ keys to highlight the desired measurement display resolution
and press the f2 (accept) key . This menu may not be accessible, depending
on the measurement mode that was selected for the channel .
Temperature Calibration
Note: The meter ATC temperature display has a relative accuracy of ± 0.1 °C.
ATC probes have varying temperature accuracies, usually ± 0.5 °C to ± 2 °C.
Use this function only if it is necessary to calibrate the temperature readings.
Since the temperature offset calculated during the calibration is applied to all
future temperature measurements, recalibrate if a different ATC probe is used.
Press the ▲ / ▼ keys to highlight Temperature Calibration and press the
f2 (select) key . Press the ▲ / ▼ keys to highlight ATC1, ATC2 or ATC1 & ATC2
to select the ATC probe(s) that will be calibrated and press the f2 (select)
key . Place the ATC probe(s) and thermometers into a solution with a known,
stable temperature . It is recommended that two NIST traceable thermometers
be used to measure and verify the temperature of the solution . Wait for the
readings of the ATC probe(s) and thermometers to stabilize (about five to
ten minutes); use the numeric keypad, decimal key and +/- key to enter
the temperature value read by the thermometer in the Reference Temperature:
____°C field and press the f2 (accept) key . The meter will display the original
temperature read by the ATC probe (i .e . ATC1: 24.2°C) and the temperature
offset value that will be applied to all future temperature readings (i .e . ATC1
Offset: -0.8°C) . Press the f3 (log/print) key to save and end the calibration,
export the data to the calibration log, export the data to a printer or computer
if one is connected to the meter and enabled in the setup menu, and proceed
to the measurement mode or press the f1 (escape) key to return to the
measurement mode without saving the calibration .

Thermo Scientific Orion DUAL STAR pH/ISE Meter User Guide
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