Orion Dual Star pH/ise dual Channel Benchtop Meter User Manual
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- Section 4
- and Measurement
Section 4 |
Calibration and Measurement ORP Measurement Procedure 1. Rinse the ORP 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. 2. If the stirrer probe is in use, press the stirrer key to turn on the stirrer probe. Press the ▲ / ▼ keys to adjust the speed of the stirrer probe. 3. Wait for the measurement to stabilize and record the ORP and temperature of the sample when the meter indicates that the measurement is stable. The read type selected in the EZ Startup menu or setup menu will determine how the ORP measurements are displayed by the meter. The available read types are Auto-Read, on ready, at time intervals, continuous, value change in measurement and timed reading. To review or change the available read type, refer to the Setup Menu section. 4. If the stirrer probe is in use, press the stirrer key to turn off the stirrer probe. 5. Remove the electrode(s) from the sample, rinse with distilled water, blot dry, place the electrode(s) into the next sample. 6. Repeat steps 2 through 5 for all of the samples. 7. When all of the samples have been measured, store the electrode(s) according to the instructions in the electrode user guides.
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Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific Calibration and Measurement |
Section 4 Temperature Calibration and Measurement Temperature Calibration Procedure 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. 1. In the measurement mode, press the setup key. 2. Press the ▲ / ▼ keys to highlight Channel 1 or Channel 2 and press the f2 (select) key. 3. Press the ▲ / ▼ keys to highlight Temperature Calibration and press the f2 (select) key. 4. 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. 5. 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. 6. 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. 7. 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). 8. 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 a printer or computer is connected to the meter and enabled in the setup menu and proceed to the measurement mode or press the
temperature compensation is being used and the display shows MAN as the temperature source icon, refer to the Temperature Input menu for instructions on how to set the manual temperature value. Do not use the Temperature Calibration menu.
Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual |
45 5 Methods The Orion Dual Star meter can save up to ten methods on each channel and the corresponding calibration data for each method, for the fast and easy recollection of different meter setup parameters. The default meter setting is that no method will be used on either channel. The meter will not display a method number if no method is currently be used on the channel. The current meter settings can be saved by pressing the method key to access the methods list. Existing methods can be selected from the methods list and run on the meter. Methods can be viewed, edited, copied to a new method, deleted, printed or the current meter settings can be saved as a new method.
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Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific Methods |
Section 5 Saving the Current Meter Settings as a New Method 1. In the measurement mode, press the method key. 2. Dual channel display only: Press the ▲ / ▼ keys to select the channel that the method will be saved on and press the f2 (accept) key. 3. The meter will display Current Settings and a list of the saved methods. The list will show the sequential number of the methods (M101) and if any methods were previously saved, the list will show the date that the method was last saved (10/05/2008) and the electrode ID used in the method (pH). 4. Press the ▲ / ▼ keys to highlight Current Settings and press the f3 (save) key. 5. Press the ▲ / ▼ keys to highlight the method number that the current meter settings will be saved as and press the f2 (accept) key. 6. Enter the current password (default password is 111111111) and press the f2 (accept) key. 7. The meter will automatically proceed to the measurement mode.
Loading an Existing Method 1. In the measurement mode, press the method key. 2. Dual channel display only: Press the ▲ / ▼ keys to select the channel that the method will be saved on and press the f2 (accept) key. 3. The meter will display Current Settings and a list of the saved methods. The list will show the sequential number of the methods (M101) and if any methods were previously saved, the list will show the date that the method was last saved (10/05/2008) and the electrode ID used in the method (pH). 4. Press the ▲ / ▼ keys to highlight the method that will be loaded on the channel and press the f2 (load) key. 5. Press the f2 (yes) key to load the method or press the f3 (no) key to retain the previous settings. 6. The meter will automatically proceed to the measurement mode. In the measurement mode, the meter will display the method number that was loaded (i.e. M102).
Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual |
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