Xylem Lab 850, up to serial number 09470314 Uživatelský manuál stáhnout pdf (Strana 24)

Operation Lab 850

ba75553e03 01/2006

Note

The buffer set is selected in the menu for measurement settings (see

page 34).

Calibration points Calibration can be performed using one, two or three buffer solutions in

any order (single-point, two-point or three-point calibration). The meter

determines the following values and calculates the calibration line as

follows:

Note

You can display the slope in the units, mV/pH or %.

You can display the zero point in the units, mV or pH.

AutoCal is adapted to the permanently programmed buffer solutions as a fully

automatic two-point or three-point calibration. The buffer solutions are

automatically recognized by the meter.

Stability control The calibration procedure automatically activates the stability control

function.

The current measurement with stability control can be terminated at

any time (accepting the current value) by pressing <OK>.

Calibration record When finishing a calibration, the new calibration values are first

displayed as an informative message and stored. )

Determined

values

Displayed calibration data

1-point ASY ! Zero point = ASY

! Slope = Nernst slope

(-59.16 mV/pH at 25 °C)

2-point ASY

SLO

! Zero point = ASY

! Slope = SLO

3-point ASY

SLO

! Zero point = ASY

! Slope = SLO

The calibration line is calculated

by linear regression.

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Xylem Lab 850, up to serial number 09470314 Uživatelský manuál Strana 24