wtw Turb 550, Operating Manual

Page: 15 / 54

Commissioning
15
3.3 Switching on the measuring instrument
Sample display
Note
Even if it is not measuring, always leave a cell plugged into
the instrument so that the cell shaft is protected against
dust.
1 Place the measuring instrument on a flat surface and
protect it against intensive light and heat
2 Press the key.
All the display elements appear briefly on the display.
The measuring instrument then switches automati-
cally to the measuring mode: A measured value and
the Auto display appear
3 Set the date and time, if necessary (see 4.4.1 C
HAN
-
GING SETTINGS
)
4 The measuring instrument has a warm-up period of
at least 30 minutes. After this time, the measuring in-
strument measures with the specified accuracy.