Xylem ProLab 4000 - Manual (Page 108)

Ion concentration ProLab 4000
108 ba75646e03 12/2012
Continuing with two-
point calibration
9 Wait for the measurement with stability control to end.
or
Take over the calibration value with [OK].
The ISE standard input window for the entry of the concentra-
tion of the second standard solution pops up.
10 Select a value from the ISE-Std list.
or
Enter a value and, if necessary, an exponent with <0...9>.
or
Cancel the calibration with [Cancel].
Note
To enter a concentration in exponential representation such as
1.00 E2 mg/l:
Enter the mantissa with <0...9> (here: 1.00).
Enter the exponential sign (E) with <- .><- .>.
Enter the exponent with <0...9> (here: 2).
11 When measuring without temperature sensor:
 Measure the temperature of the standard solution using a
thermometer.
 Open the setting window for the temperature value with
[Man. temp.].
 Enter the temperature and confirm with [OK].
12 Thoroughly rinse the electrode with distilled water.
13 Immerse the electrode in standard solution 2.
14 Start the measurement with [OK].
The measured value is checked for stability (Stability control).
15 Wait for the measurement with stability control to end.
or
Take over the calibration value with [OK].
The ISEX calibration window for the nex standard solution
pops up and the Finish with 2-point calibration infotext is dis-
played.