Measuring with Galvanic Dissolved Oxygen (DO) Probes 146
2. Press Process to enter process calibration.
3.
Use the ud directional keys to adjust the process value in agreement with the predetermined value.
4. When the reading is stable, CFM is displayed. Press CFM to save the calibration.
“Wait” is displayed at the bottom of the LCD until the calibration is saved.
“DONE” message screen is displayed and the controller returns to the menu.
Note: Process calibration evaluates probe offset if input is reading is less than 20 %, or probe slope, if values
are over 20 %.
23.5.3. Clear Calibration
1. Press CAL to enter calibration mode.
2. CLR option is displayed for a few seconds.
3. Press CLR to clear previous calibration.
4. Press YES to confirm deletion. “Calibration Erased” message screen is displayed for a few seconds then
the controller returns to user calibration mode.
5. Press the b (back) key to return to the menu.
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