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00809-0400-4728, Rev AA
June 2011
A-11
Rosemount 644
Sanitary Housing CoversStandard Cover
LCD Display Cover
Dimensions are in millimeters (inches)
79.8 (3.14)
70.0 (2.76)
33 (1.3)
76.2 (3.0)
24.4
(0.96)
25.4 (1.0)
44.5 (1.75)
27.9 (1.1)
Standard Cover Housing
O-Ring
70.0 (2.76)
33 (1.3)
76.2 (3.0)
47 (1.85)
61 (2.4)
25.4 (1.0)
44.5 (1.75)
27.9 (1.1)
74.4 (2.93)
LCD Display Cover Housing
O-Ring