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Metrohm tiamo 1.0 Manual User Manual

Page 418

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394

Method

Dosing device

Dosing device

[ 1 ] ... 4

(Titrando)

[ internal D0 ]

(Titrino)

external D1, external D2

(only Titrino 736, 751, 758, 799)

Selection of the number of the dosing device (dosing or exchange unit) to
be used for the dosing.

Solution

24 characters, solution names, [ not defined ]

Input or selection of the titrant or solution defined in the solution table. Addi-
tionally,

not defined

can be selected. If intelligent exchange or dosing units

are used then a check will be made in the method sequence that the cor-
rect titrant is present in the connected dosing device and whether the type
of dosing device is correct. With non-intelligent exchange or dosing units

the cylinder volume is checked. At the start of the command the validity of
the titer and the expiry date of the selected titrant will be checked as well as
the GLP test interval for the buret. If

not defined

is selected no tests will be

carried out.

Sensor

Measuring input

[ 1 ] ... 2

(only Titrando)

Selection of the measuring input to which the sensor is connected.

Sensor

Sensor name, [ Metal electrode ], Conductivity sensor

Selection of the sensor from the list of sensors defined in the sensor table.

I(pol)

-125.0 ... [ 50.0 ] ... 125.0 µA

(Titrando, in 2.5

µ

A steps)

-127 ... [ 50 ] ... 127 µA

(Titrino, in 1

µ

A steps)

The polarization current is the current applied to the polarized electrode
during a voltametric measurement.

Electrode test

on, [ off ]

Switching on/off the electrode test for polarized electrodes. The electrode

test for polarized electrodes is carried out during the transition from an in-
active condition to a measuring condition.

Temperature measurement

Type of temperature measuring (only Titrando):

continuous

A temperature sensor must be connected. The temperature is measured

continuously.

[ automatic ]

If a temperature sensor is connected then the temperature will be meas-
ured continuously. Otherwise the manually entered

Temperature

(tab

Titra-

tion parameters

) will used.

off

The temperature will not be measured. The

Temperature

(see Titration pa-

rameters) which has been entered manually will be used.

Stirrer

Stirrer

[ 1 ] ... 4, off

(only Titrando)

Selection of the stirrer.

off

means that no stirrer will be used.

Stirring rate

-15 ... [ 8 ] ... 15

(only Titrando)

Setting the stirrer speed. The direction in which stirring takes place changes
as the sign in front of the stirrer speed changes.