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108
Reference Manual
00809-0200-4728, Rev RA
Appendix A: Specifications and Reference Data
April 2015
Specifications and Reference Data
A.4
Ordering information
The Rosemount 644 is a versatile temperature transmitter that delivers field reliability and
advanced accuracy and stability to meet demanding process needs.
Transmitter features include:
HART/4-20 mA with Selectable Revisions 5 and 7 (Option Code A),
F
OUNDATION
fieldbus (Option Code F) or PROFIBUS PA (Option Code
W)
DIN A Head Mount, Field Mount, or Rail Mount transmitter styles
Dual Sensor Input (Option Code S)
SIS SIL 2 Safety Certification (Option Code QT)
LCD display suite
Local Operator Interface (Option Code M4)
LCD Display (Option Code M5)
Advanced Diagnostics (Option Codes DC and DA1)
Enhanced Transmitter Accuracy and Stability (Option Code P8)
Transmitter-Sensor Matching (Option Code C2)
Integral Transient Protection (Option Code T1)
Table A-5. Rosemount 644 Smart Temperature Transmitter Ordering Information
★
The Standard offering represents the most common models and options. These options should be selected for best delivery.
The Expanded offering is manufactured after receipt of order and is subject to additional delivery lead time.
●
= Available
– = Not Available
Model
Product description
644
Temperature Transmitter
Transmitter type
H
DIN A Head Mount - Single Sensor Input
★
R
Rail Mount - Single Sensor Input
★
S
DIN A Head Mount - Dual Sensor Input (HART only)
★
F
Field Mount - Single Sensor Input (HART only)
★
D
Field Mount - Dual Sensor Input (HART only)
★
Output
Head
Rail
A
4–20 mA with digital signal based on HART protocol
●
●
★
F
F
OUNDATION
fieldbus digital signal (includes 2 AI function blocks and Backup Link
Active Scheduler)
●
–
★
W
PROFIBUS PA digital signal
●
–
★
Product certifications
Head
Rail
Hazardous Locations Certificates (consult factory for availability
(1)
)
A
F
W
A
NA
No approval
●
●
●
●
★
E5
FM Explosion-proof; Dust Ignition-proof
●
●
●
–
★
I5
FM Intrinsically Safe; Non-incendive
●
●
●
●
★
Содержание Rosemount 644
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