beautypg.com

Metrohm tiamo 1.0 Manual User Manual

Page 451

background image

Commands

427

Stirrer

Stirrer

[ 1 ] ... 4, off

(Titrando only)

Selection of the stirrer.

off

means that no stirrer will be used.

Stirring rate

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

(Titrando only)

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

Switch off automatically

[ on ], off

(Titrando only)

The stirrer is automatically switched off at the end of the command if this
option is activated.

Measuring parameters

Command name

25 characters, [ MEAS Upol # ]

Name of the command.

The measuring parameters are defined on this tab.

Measurement

The two measuring modes Measurement with drift control or Meas-
urement without drift control
are selectable.

Note

A constant measured value is often only achieved after a certain time, as mixing
and possibly the reaction itself require a certain time. The response time of an
electrode can also increase with time, i.e. reaching a constant measured value
takes longer and longer. In such a case

drift-controlled measurement is par-

ticularly advisable, as the measured values are only accepted when equilibrium
has almost been achieved.

Measurement with drift control

[ on ], off

The measurement is carried out drift-controlled if this option is activated.
The measurement is stopped as soon as the

Signal drift

or the

Stop meas-

ured value

is reached or a

waiting time

has elapsed. The corresponding pa-

rameters are not visible if this option is deactivated.