Xylem ProLab 4000 MULTIPARAMETER BENCHTOP METER - Manual (Page 117)

ProLab 4000 Ion concentration
117 ba75646e02 01/2010
3 In the Sample register, enter the values for the sample volume
(Sample volume) and the volume of the ISA/TISAB solution
(ISA/TISAB volume) as necessary.
4 Thoroughly rinse the electrode with deionized water.
5 Immerse the electrode in the sample.
6 Start the measurement with [Continue] .
After end of the measurement, the Standard pops up.
7 In the Standard register, enter the value for Standard concen-
tration if necessary.
8 Add standard solution to the sample (1 percent by volume of
the sample solution).
9 Start the measurement with [Continue].
The measured value is checked for stability (Stability control).