Metrohm 904 Titrando User Manual

Page 12

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1.3 Titration modes – Measuring modes – Dosing commands

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904 Titrando

MEAS
The following measuring modes can be selected for measurements:

pH (pH measurement)
U (potentiometric voltage measurement)
Ipol (voltametric measurement with selectable polarization cur-

rent)

Upol (amperometric measurement with selectable polarization

voltage)

Conc (concentration measurement with or without standard

addition)

T (temperature measurement)

STDADD
The measuring modes for standard addition are listed separately only in
tiamo™. In Touch Control they are integrated in the measuring mode
MEAS Conc.
The following measuring modes can be selected for measurements:

auto (automatic addition of the standard addition solution by

specifying a potential difference)

dos (automatic addition of the standard addition solution by

specifying the individual volume increments)

man (manual addition of the standard addition solution)

CAL
Electrode calibration.
Measuring mode:

pH (calibration of pH electrodes)
Conc (calibration of ion-selective electrodes)

ELT
Electrode test for pH electrodes.
This mode is listed separately only in tiamo™. In Touch Control, the
electrode test is a component part of the CAL calibration mode.

Dosing commands
The following commands for dosing can be selected:

PREP (rinsing the cylinder and tubings of an exchange unit or

dosing unit)

EMPTY (emptying the cylinder and tubings of a dosing unit)
ADD (dosing a specified volume)
LQH (carrying out complex dosing tasks with a Dosino)

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