80209C_MHW_850-1650-1850_20-2020_ENG_pag. 20
1.5.2. Drilling dimensions and templates
Figure 6 - 1850 drilling dimensions and templates
to replace an 1850 controller manufactured before January
2020 with a similar controller manufactured after this date,
the casing anchored to the panel must also be replaced.
Note : the electronic components of a 1850 instrument made
after January 2020 cannot be inserted in the casing of an
instrument made prior to this date. If it should be necessary