Metrohm 827 pH lab Bedienungsanleitung PDF herunterladen (Seite 37)

6 Methods / Parameters

826/827 pH meter, Instructions for Use 29

6 Methods / Parameters

The exact measuring method of the pH meter is described by parame-

ters which, like the instrument configuration, are arranged in a tree

structure in the menu display. The complete tree is shown in the ap-

pendix (see Section 9.2) to provide a better overview.

The parameters are set analogous to the instrument configuration. No

parameters are available for the measuring modes U (mV) and T (°C).

The menu << param >> is therefore not visible in these modes.

This means that one of the following subsections, together with the in-

strument configuration, forms a complete description of all the settings

which are important for the operation of the pH meter in a particular

measuring mode.

6.1 pH measurement (pH mode)

6.1.1 Measuring parameters

param

├ measurement

: └

temp.

The measuring parameters describe the settings which are of direct

importance for the measurement.

temp.: -999.9...25.0...999.9 °C

If no temperature sensor is connected, you can enter the temperature

of the sample solution here. Otherwise the temperature is measured

continuously and this value will be ignored. In case that the measuring

and calibration temperatures are different, then it is necessary to record

the temperature for the automatic correction of the electrode slope

(temperature compensation). Information about the measuring temper-

ature is also absolutely necessary for the complete documentation of a

pH value. In the report printout of the measured value this manually de-

termined temperature is indicated by the suffix 'man.'.

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Metrohm 827 pH lab Bedienungsanleitung Seite 37