Metrohm 867 pH Module - Manual (Page 11)

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1 Introduction
867 pH Module
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￭ 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 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)
1.4 About the documentation
CAUTION
Please read through this documentation carefully before putting the
instrument into operation. The documentation contains information
and warnings which the user must follow in order to ensure safe opera-
tion of the instrument.
1.4.1 Symbols and conventions
The following symbols and formatting may appear in this documentation:
Cross-reference to figure legend
The first number refers to the figure number, the sec-
ond to the instrument part in the figure.