YSI MultiLab 4010P-1 - Manual (Page 31)

MultiLab 4010-1 pH value
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Continuing with two-
point calibration
5. Immerse the sensor in the first buffer solution.
6. Start the measurement with <MENU/ENTER>.
The measured value is checked for stability (stability control).
The [AR] status indicator is displayed. The measured parameter
flashes.
7. Wait for the end of the measurement with stability control or accept the
calibration value with <MENU/ENTER>.
The calibration display for the next buffer appears (voltage display).
8. If necessary, finish the calibration procedure as a single-point calibra-
tion with <M>.
The calibration record is displayed.
For single-point calibration, the instrument uses the Nernst slope
(-59.2 mV/pH at 25 °C) and determines the zero point of the IDS
pH sensor.
pH
-180.0
24.8
°C
AutoCal YSI
10.00
01.07.2011
08:00
AR
Buffer
mV
9. Thoroughly rinse the sensor with deionized water.
10. Immerse the pH sensor in buffer solution 2.
11. When measuring without temperature sensor:
Measure the temperature of the buffer manually and enter it with
<><>.
12. Start the measurement with <MENU/ENTER>.
The measured value is checked for stability (stability control).
The [AR] status indicator is displayed. The measured parameter
flashes.