KROHNE SMARTSENS PH 1590 EN - Manual (Page 21)

OPERATION
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SMARTSENS PH 1590
www.krohne.com 11/2013 - 4002545902 - MA SMARTSENS PH 1590 R02 en
• Dip the sensor into the second pH buffer solution 3 and wait till the value is stable.
• Press Ok
Ok Ok Ok to proceed.
i The measurement of pH buffer solution 2 pH buffer solution 2 pH buffer solution 2 pH buffer solution 2 starts and the values pH and temperature appear.
After approx. 10 seconds the following values appear:
pH value
temperature value
Status buffer detection → Finished
Value indentified buffer
• Press Ok Ok Ok Ok to confirm the identified pH buffer solution. If neccessary change the value of the pH
buffer solution manually.
• Press Enter Enter Enter Enter to proceed.
i If the sensor does not recognise the pH buffer solution the messages
Identified buffer
Identified buffer Identified buffer Identified buffer → 0 pH 0 pH 0 pH 0 pH and Buffer not recognised Buffer not recognised Buffer not recognised Buffer not recognised appear.
• Press Ok Ok Ok Ok to proceed.
i Enter the value of the pH buffer solution manually.
• Press Enter Enter Enter Enter to proceed with the calibration procedure.
• Clean the sensor with demineralised water 2.
i After a successful calibration the following values appear:
Buffer solution 1
Buffer solution 2
Offset in mV
Slope in mV/pH
• Press Ok Ok Ok Ok to proceed.
• Set the calibration date with MM-DD-YYYY. Press the key > to enter the submenu. Now you can
change the calibration date.
• Press Enter Enter Enter Enter and Ok Ok Ok Ok to proceed.
i The message save the values? save the values? save the values? save the values? appears.
• Select yes yes yes yes to save the values.
• Press Enter Enter Enter Enter to proceed.
• Select No No No No to deactivate the function manual hold manual hold manual hold manual hold.
• Press Enter Enter Enter Enter to leave the calibration menu.
A pH calibration is necessary in regular intervals or when installing a new pH sensor.
If the calibration was not successful, the message Warning! Warning! Warning! Warning! appears behind the values Offset Offset Offset Offset
and/or Slope Slope Slope Slope.
• Press Ok Ok Ok Ok to proceed.
• Set the calibration date with MM-DD-YYYY. Press the key > to enter the submenu. Now you can
change the calibration date.
• Press Enter Enter Enter Enter and Ok Ok Ok Ok to proceed.
i The messages Warning! Offset out of range! Warning! Offset out of range! Warning! Offset out of range! Warning! Offset out of range! and/or Warning! Slope out of range! Warning! Slope out of range! Warning! Slope out of range! Warning! Slope out of range! and Save Save Save Save
values? values? values? values? appear.
• Select between yes yes yes yes or no no no no.
• Press Enter Enter Enter Enter to proceed.
• Select no no no no to deactivate the function manual hold manual hold manual hold manual hold.
• Press Enter Enter Enter Enter to leave the calibration menu.
If the message ATTENTION! Slope out of range! ATTENTION! Slope out of range! ATTENTION! Slope out of range! ATTENTION! Slope out of range! appears, no data can be saved.
.book Page 21 Wednesday, October 30, 2013 11:35 AM