Xylem HandyLab 600 - Manual (Page 27)

HandyLab 600 pH value
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5.2.4 Carrying out manual calibration (ConCal)
Make sure that in the sensor menu, Buffer menu, the ConCal buffer set is
correctly selected (see ).section 7.1.1 S
ETTINGS FOR P H MEASUREMENTS , page
40
Use any one to five buffer solutions in ascending or descending order.
19. If necessary, use to finish the calibration.
The calibration record is displayed.
or
Switch to calibration with the next buffer with .
Calibration is automatically completed after the last buffer of a buf-
fer set has been measured. Then the calibration record is dis-
played.
The calibration line is determined by linear regression.
If single-point calibration was set in the menu, the calibration proce-
dure is automatically finished with the measurement of buffer solu-
tion 1 and the calibration record is displayed.
1. Connect the pH sensor to the meter.
The pH measuring window is displayed.
2. Keep the buffer solutions ready.
3. Start the calibration with .
The calibration display for the first buffer appears (voltage display).
4. Thoroughly rinse the sensor with deionized water.
5. Immerse the pH sensor in buffer solution 1.
6. Start the measurement with .
The measured value is checked for stability (stability control).
The [AR] status indicator is displayed. The measured parameter flashes.
pH
0.0
24.8 °C
ConCal
1
01.07.2011
08:00
Buffer
mV