KROHNE OPTISENS ORP 8590 EN - Manual (Page 20)

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OPERATION
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OPTISENS ORP 8590
www.krohne.com 01/2014 - 4001933801 MA OPTISENS ORP 8590 R01 en
Step 1b: accessing the calibration menu via the main menu quick setup quick setup quick setup quick setup
• You can start the calibration procedure now as described in "Step 2".
Step 2: preparing the calibration procedure
• If you re-calibrate an existing sensor, remove the sensor from its respective assembly and.
• If you calibrate a new sensor, make sure that the sensor is correctly connected to the signal
converter.
• Check the sensor for damages, check the diaphragm for coating and rinse the sensor tip with
tap water and gently swipe it with a soft tissue.
• Provide a suitable calibration solution.
After activating the hold function and the preparative measures, you can get access to the
calibration procedure from the measuring mode in two different ways. Either you go via the main
menu setup
setup setup setup (step 3a) or via the main menu quick setup quick setup quick setup quick setup (step 3b).
Step 3: calibration procedure
• After choosing the submenu ORP ORP ORP ORP (step 1a) or ORP calibration A or B ORP calibration A or B ORP calibration A or B ORP calibration A or B (step 1b) and step 2 in the
previous steps, continue by pressing >>>>.
i The currently measured value is shown on the display.
• Press ^ ^ ^ ^ to finally start the calibration procedure.
• Submerge the sensor tip into the ORP buffer solution.
• Wait until a steady value is displayed.
• Press ^
^ ^ ^ to continue the calibration procedure.
i The message ref. value ORP ref. value ORP ref. value ORP ref. value ORP and the value of the buffer solution are displayed on the
screen.
• Enter the value of the buffer solution by pressing or and >>>>. Press ^ ^ ^ ^ to confirm the
setting.
• After 25 seconds the calibration step is completed.
i The message zero point is displayed on the screen.
• Press ^ ^ ^ ^ to confirm the setting.
i The message store cal. value is displayed on the screen. The signal converter asks if the
new calibration values should be stored.
• Choose yes yes yes yes using or to store the calibration values. Choose no no no no to discard the results.
• Press ^ ^ ^ ^ to confirm.
• Press >>>> for more than 2.5 seconds, then release the button. You are on the main menu level. In the
upper line of the display "A" appears, beneath the main menu quick setup
quick setup quick setup quick setup is highlighted.
MAIN MENU
> A quick setup > A quick setup > A quick setup > A quick setup
B test
C setup
D service
• Press >>>> to enter the chosen menu.
You are on the first submenu level. In the upper line of the display "quick
setup" and "a" appears, beneath the submenu language language language language is highlighted.
Press or until the submenu ORP calibration A ORP calibration A ORP calibration A ORP calibration A or B B B B is highlighted.
• Press >>>> to enter the chosen menu.
• You can start the calibration procedure now as described in "Step 2".
.book Page 20 Friday, January 24, 2014 11:29 AM