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Reference Manual
00809-0400-4728, Rev AA
June 2011
Rosemount 644
A-10
LCD Display
Head Mount Transmitter
644H
Captive Mounting
Screws and Springs
Meter Spacer
LCD Display
10 pin Connector
Mounting
G-Rail (asymmetric) Top Hat Rail (symmetric)
Universal Clip for Mounting to a Wall or a Rail
(part number 03044-4103-0001)
644H Retrofit Kit
Note: Kit (part number 00644-5301-0010) includes mounting
hardware and both types of rail kits.
Note: Kit (part number 00644-5321-0010) includes a new mounting
bracket and the hardware necessary to facilitate the installation.
Transmitter
Mounting
Hardware
Rail Clip
Transmitter
Mounting
Hardware
Rail Clip
G-Rail
Grooves
Top Hat Rail
Grooves
Screw Holes
for Mounting
to a Wall
Kit includes replacement
bracket and screws.
Existing Threaded Sensor
Connection Head
(former option code L1)