Metrohm tiamo 2.4 Manual User Manual

Page 699

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5 Method

tiamo 2.4

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683

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

Input range

0.1 - 999,999 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 user option is
selected in the selection list Titration rate.

Volume increment

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

Input 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.

Input range

0.01 - 166.00 mL/min

Selection

maximum

Default value

maximum

Temperature

Temperature

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

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