Metrohm tiamo 2.3 (process analysis) User Manual

Page 697

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5 Method

tiamo 2.3 (for Process Analysis)

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681

time that is suitable for the drift will be calculated automatically according
to the following equation:

Range

0.1 ... 999999 s

Default value

38.0 (slow), 28.0 (optimal), 15.0 (fast) s

Dosing of increments

Note

The following parameters will be displayed only if the option User is
selected in the selection list Titration rate.

Volume increment

Small volume increments are used for determining blank values or very
asymmetrical curves. A good guideline is 1/20 of the expected EP volume.
For steep jumps the volume increment should tend toward 1/100 and for
flat jumps toward 1/10 of the EP volume. Small volume increments are
used for determining blank values or with very asymmetrical curves. The
accuracy of the evaluation cannot be increased by using smaller incre-
ments as the measured value modifications between two measuring
points are then of the same order of magnitude as the noise.

Range

0.0001 ... 9.9999 mL

Default value

0.05 (slow), 0.1 (optimal), 0.2 (fast) mL

Dosing rate

Rate (volume/time unit) at which the volume increments are dosed. The
maximum dosing rate depends on the cylinder volume of the exchange
unit or dosing unit used.

Range

0.01 ... 166.00 mL/min

Selection

maximum

Default value

maximum

Temperature

Temperature

Manually entered titration temperature. If a temperature sensor is connec-
ted and the Temperature measurement is set on the General/Hard-
ware
tab under Sensor to automatic or continuous, then the temper-
ature will be measured continuously. This value is used for temperature
correction in pH measurements.

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