Emerson Rosemount Temperature Transmitter 644HFK5A01Q4
The most versatile temperature transmitter
Reduce complexity and simplify the day to day operations of your diverse temperature applications with the versatile Rosemount 644 family of temperature transmitters. Make better decisions for your process with the new and easy to use Rosemount 644 Transmitter capabilities including: diagnostics, safety certification, integral transient protection and display options. Emerson Rosemount Temperature Transmitter 644HFK5A01Q4
Fit your needs within one model family with a customizable transmitter design
Emerson Rosemount Temperature Transmitter 644HFK5A01Q4
DIN Head mount, field mount, and rail mount form factors
4-20 mA /HART® with Selectable Revisions, FOUNDATION™ fieldbus or PROFIBUS® PA Protocol support
SIL3 Capable: IEC 61508 certified by an accredited 3rd party agency for use in safety instrumented systems up to SIL 3 [Minimum requirement of single use (1oo1) for SIL 2 and redundant use (1oo2) for SIL 3]
Enhanced display with Local Operator Interface
LCD display
Integral Transient Protection
Enhanced accuracy and stability
Transmitter-Sensor Matching with Callendar Van Dusen constants
Variety of enclosures
Rosemount 644 HART Transmitters
Emerson Rosemount Temperature Transmitter 644HFK5A01Q4
HART head mount and field mount
Single or Dual sensor inputs for RTD, Thermocouple, mV and Ohm
DIN A Head mount and Field mount transmitters
SIL3 Capable: IEC 61508 certified by an accredited 3rd party agency for use in safety instrumented systems up to SIL 3 (Minimum requirement of single use [1oo1] for SIL 2 and redundant use [1oo2] for SIL 3)
LCD display
Enhanced display with Local Operator Interface
Integral Transient Protection
Diagnostic Suite
Enhanced accuracy and stability
Transmitter-Sensor Matching with Callendar Van Dusen constants
HART rail mount
Single sensor input for RTD, Thermocouple, mV and Ohm
Custom alarm and saturation levels
Transmitter-Sensor Matching with Callendar Van Dusen constants
Hardware alarm switch
Order Information
Emerson Rosemount Temperature Transmitter 644HFK5A01Q4
Table 1. 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(1)
|
Field Mount - Single Sensor Input (HART only)
|
★
|
|
D(1)
|
Field Mount - Dual Sensor Input (HART only)
|
★
|
|
Output
|
Head
|
Rail
|
|
|
A
|
4–20 mA with digital signal based on HART protocol
|
●
|
●
|
★
|
|
F
|
FOUNDATION 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(2))
|
A
|
F
|
W
|
A
|
|
|
NA
|
No approval
|
●
|
●
|
●
|
●
|
★
|
|
E5
|
FM Explosion-proof; Dust Ignition-proof
|
●
|
●
|
●
|
–
|
★
|
