(TOC) Calibration (TOC-1000e) - Calibration

NOTE: When [User Authentication] on the [System Policy] screen is “Enabled,” the following operations are only available to an Administrator or a Main user level user. These operations are not available to User or Guest level users.
  For calibration and validation functions, the display units are fixed to "ppb" for "TOC", "μS/cm C" for "Conductivity", and "°C" for "Temperature". These units cannot be changed.

 

The calibration process involves the following:
• Calibration of the conductivity sensor
• Calibration of the TOC sensor (Creation of a calibration curve)

NOTE: Always use the standard solutions in a test set collectively. Exchanging blank water between different standard set solutions may prevent acquisition of correct measurements.

 

1. Press  - [Maintenance].

   

2. Press [Calibration].
  NOTE: [Calibration] does not function when no vial sampler is attached. If no operation runs when you press [Calibration], check whether the vial sampler is attached correctly.

   

3. Press [Calibration].

   

  The [Validation] screen appears after about 15 seconds of initialization process.

4. Select all items and start calibration.
  1) Add a check mark to the check box of each item.
  2) Press [Start].

     

    Calibration of the conductivity sensor runs first.

5. Run a calibration of the conductivity sensor.
  1) Follow the instructions on the screen and load the blank water and standard solution of the 147 μS/cm KCL Conductivity Std. Set (Part No.: 638-60254-91) into the vial sampler.
    NOTE: Shake the blank water and standard solution well and allow them to reach room temperature (about 2 hours).

      Do not exchange the blank water between different standard solution sets. Doing so may prevent acquisition of correct measurements.
  2) Press [Check].

     

    Calibration starts.
    The results are displayed when the process is finished.

6. Check the results.
  1) Switch tabs to check the results.
  2) Press [Complete] or [Next].

    HONT: Press [Next] to proceed to the next calibration item, or press [Complete] if there are no other items.

    

    

7. Accept the results to adopt them.
  1) Add a check mark to the checkbox.
  2) Press [OK].

     

    NOTE: If you do not want to accept the results, leave the checkbox blank and press [OK].
      The calibration results will not be used to update the values to be used for measurement.
      However, the results will be recorded in the calibration history.

8. Set the number of vials to be used to rinse the flow line of the vial sampler.
  Rinse all vial positions used for the calibration of the conductivity sensor.
  1) Select the Vial No. from [Vial Sampler] and set to [3].
  2) Press  .

     

9. Run a rinse cycle to rinse the flow line of the vial sampler.
  1) Follow the instructions on the screen and load the blank water into the vial sampler.
  2) Press [Start].
     

    Rinsing starts.
    When rinsing is completed, create a TOC calibration curve.

10. Set the calibration settings for the TOC sensor.
  1) Select the standard solution type from [Standard].

    HINT: 0-250-500 μg/L Sucrose TOC Std. Set (Part No.: 638-60255-91) or 0-500-1,000-2, 000 μg/L Sucrose TOC Std. Set (Part No.: 638-60257-91) option can be selected for the TOC standard solution set.
      The screen for when the 0-500-1,000-2,000 μg/L Sucrose TOC Std. Set option is selected is shown below.
  2) Select the measurement count from [Repetition].
    HINT:

    • The [Repetition] options indicate the number of measurements used for TOC calibration calculation out of the total number of measurements used for calibration.
    • Example: If [3/4] is selected for [Repetition], three measurements with good repeatability are used for TOC calibration calculation out of the total of four measurements run.
    • If [3/3] or [4/4] is selected, all of the measurements that were run are used for the TOC calibration calculation.

  3) Press  .

     

11. Run a calibration of the TOC sensor.
  1) Follow the instructions on the screen and load the blank water and standard solution into the vial sampler.
    NOTE: Shake the blank water and standard solution well and allow them to reach room temperature (about 2 hours).

      Do not exchange the blank water or standard solution between different standard solution sets. Doing so may prevent acquisition of correct measurements.

    HINT: 0-250-500 μg/L Sucrose TOC Std. Set (Part No.: 638-60255-91) or 0-500-1,000-2, 000 μg/L Sucrose TOC Std. Set (Part No.: 638-60257-91) option can be selected for the TOC standard solution set. The screen for when the 0-500-1,000-2,000 μg/L Sucrose TOC Std. Set option is selected is shown below.
  2) Press [Check].

     

    The creation of a calibration curve starts.
    The results are displayed when the measurement is finished.

12. Check the results.
  1) Check the screen display.
  2) Press [Complete].

     

13. Accept the results to adopt them.
  1) Add a check mark to the checkbox.
  2) Press [OK].

     

    NOTE: If you do not want to accept the results, leave the checkbox blank and press [OK].
      The created calibration curve will not be used to update the values to be used for measurement.
      However, the results will be recorded in the calibration history.

14. Set the number of vials to be used to rinse the flow line of the vial sampler.
  Rinse all vial positions used for the calibration of the TOC sensor.
  1) Select the Vial No. from [Vial Sampler].
    Depending on the vial positions used for the calibration of the TOC sensor, set to “3” or “4.”
  2) Press  .

     

15. Run a rinse cycle to rinse the flow line of the vial sampler.
  1) Follow the instructions on the screen and load the blank water water into the vial sampler.
  2) Press [Start].

     

    Rinsing starts.
    When rinsing is finished, the [Calibration] screen reappears.