Metrohm 904 Titrando User Manual download pdf (Page 12)

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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Metrohm 904 Titrando User Manual Page 12