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1.3.2. Drilling dimensions and templates
Figure 2 - 850 drilling dimensions and templates
Note : the electronic components of a 850 instrument made
after January 2020 cannot be inserted in the casing of an
instrument made prior to this date. If it should be necessary
to replace an 850 controller manufactured before January
2020 with a similar controller manufactured after this date,
the casing anchored to the panel must also be replaced.