Reference Manual
00809-0400-4728, Rev AA
June 2011
A-9
Rosemount 644
DIMENSIONAL DRAWINGS644H (DIN A Head Mount)
Shown with Standard Compression Screw Terminals Shown with WAGO® Spring Clamp Terminals
Threaded-Sensor Universal Head (Option code J5 or J6) Integral DIN Style Sensor Connection Head
Note: A “U” Bolt is shipped with each universal head unless assembly
option X1, X2, or X3 is ordered. Since thehead is integrally mounted to the
sensor, it may not needt o be used.
Note: The DIN Style Integral sensor connection head is only available
through Volume 2 of the Rosemount Temperature Sensors and
Accessories Product Data Sheet (document number 00810-0101-2654).
Dimensions are in millimeters (inches)
Simulation Switch
Standard
Sensor
Termi nal s
Communication
Termi nals
60 (2.4)
33
(1.3)
Power
Termi nal s
33 (1.30)
24 (1.0)
Meter
Connector
33
(1.3)
60 (2.4)
34 (1.33)
WAGO Spring
Clamp Sensor
Termi nal s
24 (1.0)
Communication
Termi nal s Simulation Switch
Meter
Connector
Power
Termi nal s
95 (3.74)
96 (3.76)
112 (4.41)
Meter Cover
316 SST “U”
Bolt Mounting,
2-inch Pipe
75
(2.93)
Label
Standard
Cover
LCD
Display
103 (4.03) with LCD
Display
78 (3.07)
128 (5.04)
with LCD
Display
100
(3.93)
104
(4.09)