![Emerson Rosemount 644 HART Reference Manual Download Page 108](http://html.mh-extra.com/html/emerson/rosemount-644-hart/rosemount-644-hart_reference-manual_104731108.webp)
Specifications and Reference Data
July 2016
Reference Manual
00809-0100-4728, Rev MB
98
Specifications and Reference Data
A.6.2 Physical specifications
Electrical connections
Field Communicator connections
Materials of construction
Materials of construction (stainless steel housing for
biotechnology, pharmaceutical industries, and sanitary
applications)
Housing and Standard Meter Cover
316 SST
Cover O-Ring
Buna-N
Mounting
The Rosemount 644H installs in a connection head or universal
head mounted directly on a sensor assembly, apart from a sensor
assembly using a universal head, or to a DIN rail using an optional
mounting clip.
Special mounting considerations
for the special hardware that is available
to:
Mount a Rosemount 644H to a DIN rail. (see
)
Retrofit a new Rosemount 644H to replace an existing
Rosemount 644H Transmitter in an existing threaded sensor
connection head.(see
)
Weight
Weight (stainless steel housing for Biotechnology,
Pharmaceutical Industries, and Sanitary Applications)
Enclosure ratings (Rosemount 644H)
All available enclosures are Type 4X, IP66, and IP68.
Sanitary housing surface
Surface finish is polished to 32 RMA. Laser etched product marking
on housing and standard covers.
A.6.3 Performance specifications
EMC (ElectroMagnetic Compatibility)
NAMUR NE 21 Standard
The Rosemount 644H HART meets the requirements for NAMUR
NE 21 Rating.
CE electromagnetic compatibility compliance testing
The Rosemount 644 is compliant with Directive 2004/108/EC.
Meets the criteria under IEC 61326:2006
Model
Power and sensor terminals
Rosemount
644H
Compression screws permanently fixed to terminal
block
Communication terminals
Rosemount
644H
Clips permanently fixed to terminal block
Electronics housing and terminal block
Rosemount 644H
GE polyphenylene oxide glass reinforced
Enclosure (Options J5, J6)
Housing
Low-copper aluminum
Paint
Polyurethane
Cover O-ring
Buna-N
Code
Options
Weight
644H
HART, Head Mount Transmitter
95 g (3.39 oz)
644H
F
OUNDATION
Fieldbus,
Head Mount Transmitter
92 g (3.25 oz)
644H
PROFIBUS PA
Head Mount Transmitter
92 g (3.25 oz)
644R
HART, Rail Mount Transmitter
174 g (6.14 oz)
M5
LCD Display
35 g (1.34 oz)
J5, J6
Universal Head, Standard Cover
577 g (20.35 oz)
J5, J6
Universal Head, Meter Cover
667 g (23.53 oz)
J7, J8
SST Universal Head, Std. Cover
1620 g (57.14 oz)
J7, J8
SST Universal Head, Meter Cover
1730 g (61.02 oz)
Code
Standard cover
Meter cover
S1
840 g (27 oz)
995 g (32 oz)
S2
840 g (27 oz)
995 g (32 oz)
S3
840 g (27 oz)
995 g (32 oz)
S4
840 g (27 oz)
995 g (32 oz)
Susceptibility
Parameter
Influence
HART
ESD
•
6 kV contact discharge
•
8 kV air discharge
None
Radiated
•
80 – 1000 MHz at 10 V/m AM
< 1.0%
Burst
•
1 kV for I.O.
None
Surge
•
0.5 kV line–line
•
1 kV line–ground (I.O. tool)
None
Conducted
•
100 kHz to 80 MHz at 10 V
< 1.0%
Summary of Contents for Rosemount 644 HART
Page 2: ......
Page 16: ...6 Reference Manual 00809 0100 4728 Rev MB Introduction July 2016 Introduction ...
Page 86: ...76 Reference Manual 00809 0100 4728 Rev MB Troubleshooting July 2016 Troubleshooting ...
Page 138: ...128 Reference Manual 00809 0100 4728 Rev MB Index July 2016 Index ...
Page 139: ......