User guide

4 OPERATION
18
SMARTSENS PH 8570
www.krohne.com 11/2013 - 4002544902 - MA SMARTSENS PH 8570 R02 en
• Dip the sensor into the second pH buffer solution 3 and wait till the value ist stable.
• Press Next
NextNext
Next to proceed.
i The measurement of pH buffer solution 2
pH buffer solution 2pH 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
Indentified buffer value
• Press Next
NextNext
Next to confirm the identified pH buffer solution. If neccessary change the value of the
pH buffer solution manually.
If the sensor does not recognise the pH buffer solution the message buffer not recognised
buffer not recognisedbuffer not recognised
buffer not recognised
appears.
• Press Next
NextNext
Next to proceed.
i The value 0 for the pH buffer solution appears. Enter the value of the pH buffer solution
manually.
• Press Next
NextNext
Next 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 Next
NextNext
Next to proceed.
• Set the calibration date with DD-MM-YYYY and calibration time with HH-MM-SS
• Press Next
NextNext
Next to proceed.
i The message Save values?
Save values?Save values?
Save values? appears.
• Select yes
yesyes
yes to save the values.
• Press Next
NextNext
Next to proceed.
• Select no
nono
no to deactivate the function manual hold
manual holdmanual hold
manual hold.
• Press Next
NextNext
Next 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! Offset out of range!
Warning! Offset out of range!Warning! Offset out of range!
Warning! Offset out of range! appears behind
the value Offset
OffsetOffset
Offset and/or the message Warning! Slope out of range!
Warning! Slope out of range!Warning! Slope out of range!
Warning! Slope out of range! behind the value Slope
SlopeSlope
Slope.
In case the value of the slope is not plausible, addionally the message No saving possible
No saving possibleNo saving possible
No saving possible
appears.
• Press Next
NextNext
Next 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! or Warning! Slope out of range!
Warning! Slope out of range!Warning! Slope out of range!
Warning! Slope out of range! appear.
• Press Next
NextNext
Next to proceed.
• Set the calibration date with DD-MM-YYYY and calibration time with HH-MM-SS
• Press Next
NextNext
Next to proceed.
i The message Save values?
Save values?Save values?
Save values? appears.
• Select between yes
yesyes
yes or no
nono
no.
• Press Next
NextNext
Next to proceed.
• Select no
nono
no to deactivate the function manual hold
manual holdmanual hold
manual hold.
• Press Next
NextNext
Next to leave the calibration menu.
If the message Warning! Slope out of range!
Warning! Slope out of range!Warning! Slope out of range!
Warning! Slope out of range! appears together with the message No saving
No saving No saving
No saving
possible
possiblepossible
possible, no data can be saved.
.book Page 18 Monday, November 18, 2013 4:44 PM