JFE Advantech ARO-FT, User Manual

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⑧
When all the values are obtained, a new constant is calculated. After finishing the communication by
clicking the [Disconnect] button, save the calibration value by clicking the [Write] button.
⑨
Delete all the values by clicking the [Retry] button and restart the calibration.

Carry out this process with care as it affects physical quantities.

Make sure to complete the span calibration first.

Even if communication is stopped during calibration, it can be continued.

Displays a warning sign if calibration was failed. Recalibrate if the warning was
displayed.

Unable to reverse once the new constant is saved.

Consider replacing the sensor film if the value is not calibrated.
7.5.1 How to make air bubbling water for SPAN calibration
7.5.2 How to make sodium sulfite solution for zero calibration
Make the sodium sulfite solution (referred to as Na
2
SO
3
solution) for zero calibration by the below
process. Please note that JFE Advantech does not provide a sodium sulfite outside of Japan.
Air bubbling water
(Air-saturated
water)
Bubble air into 500 mL of water while stirring for more than 30
minutes.
Na
2
SO
3
solution Dissolve 25 g of sodium sulfite in 500 mL of water.

If Na
2
SO
3
solution enters eyes or mouth, immediately stop the operation
and apply appropriate treatment according to the Safety Data Sheet (SDS).

If Na
2
SO
3
solution touches the skin, immediately wash it off with large
amount of water.

When disposing used solutions, do so appropriately according to the SDS.
Caution