wtw Turb 555 Operating Manual page 54

Operation
54
26 To change the calibration interval, press
the required number of days is displayed.
Options: 0.0 ... 180
If you do not want to be automatically reminded when
a calibration is due, select 0.0.
27 Confirm your selection with
Year In the following menu, you can set the year (
played).
28 To change the year, press
29 Confirm your selection with
Turb 555 / Turb 555 IR
8
or
1
.
y
8 2
or .
1
.
ba41113e07
2
until
is dis-
04/2009