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3. Select Sample calibration.
4. Select the option for the output signal during calibration:
Option
Description
Active
The instrument sends the current measured output value during the calibration procedure.
Hold
The device output value is held at the current measured value during the calibration procedure.
Transfer A preset output value is sent during calibration. Refer to the controller user manual to change the
preset value.
5. Push OK.
The measured value is shown.
6. Wait for the value to stabilize and push OK.
Note: The screen may advance to the next step automatically.
7. Measure the concentration value of the sample with a secondary verification instrument.
Note: Collect the sample upstream of the analyzer. The air suction of the analyzer will lower the oxygen
scavenger concentration in the sample.
8. Use the arrow keys to enter the measured value and push OK.
9. Review the calibration result:
• "Calibration: Pass"—The device is calibrated and ready to measure samples. The slope and/or
offset values are shown.
• "Calibration failed." —The calibration slope or offset is outside of accepted limits. Repeat the
calibration. Clean the device if necessary.
10. Push OK to continue.
7.2.5 Zero calibration
The zero value has been factory calibrated. Use the zero calibration procedure to define the unique
zero point of the analyzer.
1. Select the main menu icon, then select Devices. A list of all of the available devices shows.
2. Select the device and select Device menu > Calibration.
3. Select Zero calibration and follow the prompts.
4. Select the option for the output signal during calibration:
Option
Description
Active
The instrument sends the current measured output value during the calibration procedure.
Hold
The device output value is held at the current measured value during the calibration procedure.
Transfer A preset output value is sent during calibration. Refer to the controller user manual to change the
preset value.
5. Plumb a sample supply line of hydrazine-free water to the analyzer (e.g., ultra pure water or
deionized water).
6. Make sure that the sample flow rate, temperature and pressure of the sample supply line are
within the values in
7. Open the valve on the sample supply line to start the sample flow.
8. Turn the knob on the flow meter to set the flow rate to between 10 and 15 L/h.
Note: For accurate readings, the flow rate must be stable.
9. Push OK.
The measured value is shown.
10. Wait for the value to stabilize and push OK.
Note: The screen may advance to the next step automatically.
18 English
Specifications
on page 3.
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