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Metrohm 900 Touch Control Manual User Manual

Page 398

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29.9 Measurements (MEAS)

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900 Touch Control

Concentration standard

Concentration of the standard solution used. When Addition = manual
is defined, a numerical value has to be entered here, the selection from
list
creates an error message when starting the determination.

Input range

0.00001 - 99999.9

Selection

from list

Default value

from list

from list
The standard solution selected under Standard addition

Dosing

device is used.

Unit of the standard solution used.

Entry

max. 24 characters

Selection

mol/L | mmol/L | ppm | % | g/L | mg/L | µg/L

Default value

ppm

Number of additions

Number of standard additions. The more addition steps you carry out the
more accurate the evaluation becomes.

Input range

1 - 19

Default value

3

Stop volume

Maximum permissible volume for the volume steps. If the sum of the vol-
ume steps is higher than this volume, an error message is displayed when
starting the determination.

Input range

0.00 - 9999.90 mL

Default value

99.99 mL

Volume aux. solution

Volume of the buffer solution etc. which has to be added to the sample
before the measurement can be started.

Input range

0.00 - 9999.90 mL

Default value

0.00 mL

Stirrer control
The parameters for the stirrer control during the standard addition are
edited under [Stirrer control]. Ensure that a stirrer has been selected in
the Edit command / Stirrer dialog.