Reference Manual
00809-0100-4728, Rev HA
December 2002
A-7
Models 644H and 644R
DIMENSIONAL DRAWINGS
Model 644R (Rail Mount)
Model 644H (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
Shown with LCD Display
Note: A “U” Bolt is shipped with each universal head unless assembly
option X1, X2, or X3 is ordered. Since the head is integrally mounted to
the sensor, it may not need to 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)
36
(1.4)
104
(4.1)
82
(3.2)
Sensor Terminals
Power Terminals
644-1
1
05
E01
A
. 1
101
A01A
644-1
360A
02A
Failure Mode
Switch
Standard Sensor
Terminals
Communication Terminals
60 (2.4)
33 (1.3)
Power Terminals
Meter Connector
33 (1.30)
24 (1.0)
644
-136
0B02
A
33
(1.3)
60 (2.4)
34 (1.33)
WAGO
Spring Clamp
Sensor Terminals
24 (1.0)
Power Terminals
Communication Terminals
Failure Mode
Switch
Meter Connector
95 (3.74)
96 (3.76)
112 (4.41)
103 (4.03) with LCD Display
Meter Cover
SST “U” Bolt
Mounting,
2-inch Pipe
75
(2.93)
Label
Standard
Cover
104 (4.09)
128 (5.04) with LCD Display
100
(3.93)
644-4
420A
02A,
4410
A03A
78 (3.07)
Summary of Contents for Rosemount 644h
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