WIKA 32 Mode D'emploi page 12

5. Commissioning, operation
Prior to installation, check whether the wetted materials of the
instrument are suitable for the medium.
The materials used can be found on the delivery documentation.
EN
5.1 Indicator
The scale divisions are permanently imprinted onto the glass
insert and consist of main and sub-divison lines. These form the
reference to the measuring range printed on the case. The exact
reading of the temperature is made by the level of the
thermometric liquid in the capillary, the column. This is made
easier by the sub-division lines. In order to ensure an optimal
reading of the temperature, the eyes should be at the same height
as the thermometer. Thus the viewing angle will be from the front.
In this way, the indicator liquid is optically enlarged.
Indicator
liquid
Magnification of the indicator liquid when looking at the
thermometer from the front.
12
26 °C
WIKA operating instructions model 32