Section 3
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Meter Setup
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.
Temperature Input
Press the ▲ / ▼ keys to highlight Temperature Input and press the f2 (select) key. Select the
source of the temperature measurement and the display units of the temperature measurement.
•
ATC1, ATC2 or Manual – To select the temperature source, press the ▲ / ▼ keys to
highlight ATC1, ATC2 or Manual and press the
f2 (accept) key. Channel 1 and 2 are able
to receive temperature readings from an ATC probe connected to the channel 1 input
(ATC1) or the channel 2 input (ATC2). If Manual is selected, enter the temperature using
the numeric keypad, decimal key and +/- key and press the f2 (accept) key.
•
Temperature Unit – To select the temperature units as Celsius or Fahrenheit, press the
▲ / ▼ keys to highlight Temperature Unit, press the
f2 (accept) key, press the ▲ / ▼
keys to highlight Celsius or Fahrenheit and press the f2 (accept) key.
Once all of the temperature settings are entered, press the f1 (back) key.
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Orion Dual Star pH/ISE Benchtop
Meter User Manual
Thermo Scientific
Meter
Setup
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Section 3
Calibration Setup
Press the ▲ / ▼ keys to highlight Calibration Setup and press the f2 (select) key. View and
change the pH or ISE calibration settings, depending on the measurement mode that was
selected for the channel.
•
pH Calibration Settings – Entering the Calibration Setup menu will access the Buffer Set
and ISO settings.
•
Buffer Set – Press the ▲ / ▼ keys to highlight Buffer Set and press the f2 (select) key.
Press the ▲ / ▼ keys to select US or EURO as the calibration buffer set and press the
f2 (accept) key. The meter will automatically recognize pH 1.68, 4.01, 7.00, 10.01 and
12.46 buffers if US is selected and pH 1.68, 4.01, 6.86 and 9.18 buffers if EURO is
selected.
•
ISO – Press the ▲ / ▼ keys to highlight ISO and press the f2 (select) key. To enter the pH
isopotential point, use the numeric keypad and decimal key to enter the value and press
the f2 (accept) key.
Once all of the pH calibration settings are entered, press the f1 (back) key.
•
ISE calibration settings – Entering the Calibration Setup menu will access the Autoblank,
Low Level Stability and Isopotential settings.
o Autoblank – Press the ▲ / ▼ keys to highlight Autoblank and press the f2 (select)
key. Press the ▲ / ▼ keys to highlight Off or On and press the f2 (accept) key.
o Low Level Stability – Press the ▲ / ▼ keys to highlight Low Level Stability and press
the f2 (select) key. Press the ▲ / ▼ keys to highlight Off or On and press the
f2 (accept) key.
o Isopotential – Press the ▲ / ▼ keys to highlight Isopotential and press the f2 (select)
key.
o To turn off or on temperature compensation for ISE measurements, press the ▲ / ▼
keys to highlight ISO On/Off and press the
f2 (select) key. Press the ▲ / ▼ keys to
highlight Off or On and press the f2 (accept) key.
o To enter the ISE isopotential point, press the ▲ / ▼ keys to highlight ISO Value and
press the f2 (select) key. Use the numeric keypad and decimal key to enter the value
and press the f2 (accept) key.
o Once all of the ISE isopotential settings are entered, press the f1 (back) key.
Once all of the ISE calibration settings are entered, press the f1 (back) key.
Read Type
Press the ▲ / ▼ keys to highlight Read Type and press the f2 (select) key. Press the ▲ / ▼
keys to highlight Auto-Read, On Ready, At Time Intervals, Continuous, Value Change In
Thermo Scientific
Orion Dual Star pH/ISE Benchtop Meter User Manual
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