Product Data Sheet: Rosemount™ 644 Temperature Transmitter
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Product Data Sheet: Rosemount™ 644 Temperature Transmitter
Rosemount, Temperature, Transmitter, Diagnostics, Safety, Certifications, Transient, Protection, Display Options, Head Mount, Field Mount, Rail Mount, HART, Accuracy, Stability
"Rosemount, Temperature, Transmitter, Diagnostics, Safety, Certifications, Transient, Protection, Display Options, Head Mount, Field Mount, Rail Mount, HART, Accuracy, Stability"
Product Data Sheet: Rosemount™ 644 ... - Emerson
Rosemount 644 Quick Start Guide or Reference Manual for more instructions. □ Long software tag: 32 characters. Table 23: FOUNDATION ...
March 2021 Rosemount 644 Temperature Transmitter
Product Data Sheet 00813-0100-4728, Rev UG March 2021 Rosemount™ 644 Temperature Transmitter The most versatile temperature transmitter Reduce complexity and simplify the day-to-day operations of your diverse temperatur…
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Product Data Sheet
00813-0100-4728, Rev UG March 2021
RosemountTM 644 Temperature Transmitter
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.
Rosemount 644
March 2021
Features and benefits
Fulfill your needs within one model family with a customizable transmitter design
DIN head mount, field mount, and rail mount form factors 4�20 mA/HART� with Selectable Revision 5 and 7,
FOUNDATION Fieldbus or PROFIBUS� PA Protocol support SIL3 Capable: IEC 61508 certified by an accredited third-
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 (LOI) LCD display Integral transient protection Enhanced accuracy and stability Transmitter-sensor matching with Callendar-Van Dusen constants Variety of enclosures
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Contents
Features and benefits........................................................................................................................................................................ 2 Ordering information........................................................................................................................................................................ 6 Specifications ................................................................................................................................................................................. 18 Dimensional drawings..................................................................................................................................................................... 33 Specifications and reference data for Rosemount 644 HART (Device Revision 7 or Previous)........................................................... 47 Product certifications...................................................................................................................................................................... 55
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Rosemount 644 selection guide
Rosemount 644 HART Transmitters HART head mount and field mount
Rosemount 644
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 third 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 LOI Integral transient protection Diagnostic suite Enhanced accuracy and stability Transmitter�sensor matching with Callendar-Van Dusen constants
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Rosemount 644
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 Rosemount 644 FOUNDATION Fieldbus
March 2021
Single sensor input for RTD, thermocouple, mV, and ohm DIN A head mount transmitter Standard function blocks: two analog inputs, one PID, and one backup Link Active Scheduler (LAS) LCD display ITK 5.01 compliant Transmitter�sensor matching with Callendar-Van Dusen constants Integral transient protection
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Emerson.com/Rosemount
March 2021 Rosemount 644 PROFIBUS PA
Rosemount 644
Single sensor input for RTD, thermocouple, mV, and ohm DIN A head mount transmitter Standard function blocks: one physical, one transducer, and one analog output LCD display Compliant to PROFIBUS PA Profile 3.02 Transmitter�sensor matching with Callendar-Van Dusen constants
Easy to use human-centered designs to make your job simple Diagnostic information and process health at your fingertips with intuitive Device Dashboards (DD). Communication clips are easily accessible when an LCD display is attached. Easy wiring practices with captive sensor screw terminals, an optimized wiring diagram, and field mount enclosure option.
Optimize plant efficiency and increase visibility into the process with an expansive diagnostic offering Keep your process up and running with the Hot BackupTM feature where if your primary sensor fails, a second sensor seamlessly
takes over and prevents the measurement failure. Tighten control with sensor drift alert that detects drifting sensors and proactively notifies the user. Enable predictive maintenance practices with thermocouple degradation diagnostic that monitors the health of the
thermocouple loop. Improve quality with minimum and maximum temperature tracking that records temperature extremes of the process and the
ambient environment.
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Rosemount 644
Ordering information
March 2021
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 Revision 5 and 7 (option
code A), FOUNDATION Fieldbus (option code F) or PROFIBUS PA (option code W)
DIN A head mount, field mount, or rail mount transmitter styles
Head mount - Dual sensor (option code S)
Field mount - Dual sensor (option code D)
Safety Certified to IEC 61508 with Certificate of FMEDA Data (option code QT)
LCD display (option code M5)
LOI (option code M4)
Advanced diagnostics (option codes DC and DA1)
Enhanced transmitter accuracy and stability (option code P8)
Transmitter-sensor matching (option code C2)
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Model codes
Model codes contain the details related to each product. Exact model codes will vary; an example of a typical model code is shown in Figure 1. Figure 1: Model Code Example
1. Required model components (choices available on most) 2. Additional options (variety of features and functions that may be added to products)
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March 2021
Rosemount 644
Specifications and options
See the Specifications and options section for more details on each configuration. Specification and selection of product materials, options, or components must be made by the purchaser of the equipment. See the Material selection section for more information.
Optimizing lead time
The starred offerings () represent the most common options and should be selected for best delivery. The non-starred offerings are subject to additional delivery lead time.
Required model components
Model
Code 644
Description Temperature transmitter
Transmitter type
Code Description
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)
(1) Consult factory on availability.
Output
Code A F(1) W(1)
Description 4�20 mA with digital signal based on HART� Protocol FOUNDATIONTM Fieldbus digital signal (includes 2 AI function blocks and backup LAS) PROFIBUS� PA digital signal
(1) Only available with H (single sensor), not S (dual sensor).
Product certifications
Hazardous locations certificates (consult factory for availability)
Note See Table 1 for the validity of enclosures with individual approval options.
Head
Rail � �
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Rosemount 644
March 2021
Code Description
NA
No approval
E5
USA Explosion-proof; Dust Ignition-proof
I5
USA Intrinsically Safe; Non-incendive
K5
USA Explosionproof; Intrinsically Safe; Non-incendive; Dust Ignition- proof
NK
IECEx Dust
KC
USA and Canada Intrinsically Safe and Non-incendive
KB
USA and Canada: Explosion-proof; Intrinsically Safe; Non-incendive; Dust Ignition-proof
KD
USA, Canada, and ATEX Explosionproof, Intrinsically Safe
I6
Canada Intrinsically Safe
K6
Canada Explosionproof; Intrinsically Safe; Non-incendive; Dust Ignition-proof
I3
China Intrinsic Safety
E3
China Flameproof
N3
China Type n
E1
ATEX Flameproof
N1
ATEX Type n
NC
ATEX Type n Component
K1
ATEX Flameproof; Intrinsic Safety; Type n; Dust
ND
ATEX Dust Ignition�Proof
KA
Canada and ATEX: Explosion proof; Intrinsically Safe; Non-incendive
I1
ATEX Intrinsic Safety
E7
IECEx Flameproof
I7
IECEx Intrinsic Safety
N7
IECEx Type n
NG
IECEx Type n Component
K7
IECEx Flameproof; Intrinsic Safety; Type n; Dust
I2
INMETRO Intrinsic Safety
E4
Japan Flameproof
I4
Japan Intrinsic Safety
E2
INMETRO Flameproof
EM
Technical Regulations Customs Union (EAC) Flameproof
IM
Technical Regulations Customs Union (EAC) Intrinsic Safety
KM
Technical Regulations Customs Union (EAC) Flameproof, Intrinsic Safety, and Dust-
Ignitionproof
Head
Rail
A FW A
�
�
�
�
���
��
�
�
�
�
�
�
�
�
�
�
�
�
��
�
�
�
�
�
�
�
�
��
�
�
�
�
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March 2021
Rosemount 644
Additional options
PlantwebTM standard diagnostic functionality
Code Description
Head
Rail
A FW A
DC(1) Diagnostics: Hot BackupTM and sensor drift alert
��
�
DA1 HART� sensor and process diagnostic suite: Thermocouple diagnostic and min/max tracking � �
�
(1) Only available with S (dual sensor), not H (single sensor).
Enclosure
Code J5 (1)(2) J6(2) R1 R2 J1(1) J2 D1(1)(3)(4)
D2(3)(4)
J3(1) J4 J7(1)(2) J8(2) R3 R4
Housing style
Universal junction box, 2 entries
Universal junction box, 2 entries
Rosemount connection head, 2 entries
Rosemount connection head, 2 entries
Universal junction box, 3 entries
Universal junction box, 3 entries
Field mount housing, separate terminal compartment
Field mount housing, separate terminal compartment
Universal junction box, 3 entries
Universal junction box, 3 entries
Universal junction box, 2 entries
Universal junction box, 2 entries
Rosemount connection head, 2 entries
Rosemount connection head, 2 entries
Material Aluminum Aluminum Aluminum Aluminum Aluminum Aluminum Aluminum
Aluminum
Cast SST Cast SST Cast SST Cast SST Cast SST Cast SST
Entry size M20 � 1.5 ��14 NPT M20 � 1.5 ��14 NPT M20 � 1.5 ��14 NPT M20 � 1.5
��14 NPT
M20 � 1.5 ��14 NPT M20 � 1.5 ��14 NPT M20 � 1.5 ��14 NPT
Diameter 3-in. (76 mm)
Head
Rail
A FW A
�
3-in. (76 mm)
�
3-in. (76 mm)
�
3-in. (76 mm)
�
3.5-in. (89 mm) �
3.5-in. (89 mm) �
3.5-in. (89 mm) � � �
�
3.5-in. (89 mm) � � �
�
3.5-in. (89 mm) �
3.5-in. (89 mm) �
3-in. (76 mm)
�
3-in. (76 mm)
�
3-in. (76 mm)
�
3-in. (76 mm)
�
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Rosemount 644
March 2021
Code
S1 S2 S3 S4
Housing style
Material
Connection head, 2 entries Polished SST Connection head, 2 entries Polished SST Connection head, 2 entries Polished SST Connection head, 2 entries Polished SST
Entry size
��14 NPT ��14 NPSM M20 � 1.5 M20 � 1.5, M24 � 1.4
Diameter
3-in. (76 mm) 3-in. (76 mm) 3-in. (76 mm) 3-in. (76 mm)
Head
Rail
A FW A
�
�
�
�
(1) When ordered with XA, �-in. NPT enclosure will come equipped with an M20 adapter with the sensor installed as a process ready. (2) Enclosure ships equipped with 50.8 mm (2-in.) SST pipe U-bolt mounting kit except when ordered with XA.
(3) Only available with S (dual sensor), not H (single sensor).
(4) Available with Transmitter Type 644F or 644D only.
Mounting bracket
Bracket assembly is only available with J1, J2, J3, J4, D1, and D2 option.
Code Description
B4
316 SST U-bolt mounting bracket, 2-in. pipe mount
B5
"L" mounting bracket for 2-in. pipe or panel mounting
Head
Rail
A FW A
Display and interface
Code Description
M4
LCD display with LOI
M5
LCD display
Head
Rail
A FW A
��
�
�
Software configuration
Code Description
C1
Custom configuration of date, descriptor and message (requires CDS with order)
Head
Rail
A FW A
Enhanced performance
See Table 18 for enhanced accuracy specifications.
Code Description
P8
Enhanced transmitter accuracy and stability
Head
Rail
A FW A
��
�
10
Emerson.com/Rosemount
March 2021
Rosemount 644
Alert level configuration
Code Description
A1
NAMUR alarm and saturation levels, high alarm
CN
NAMUR alarm and saturation levels, low alarm
C8
Low alarm (standard Rosemount alarm and saturation values)
Head
Rail
A FW A
��
��
��
Line filter
Code Description
F5
50 Hz line voltage filter
F6
60 Hz line voltage filter
Head
Rail
A FW A
Sensor trim
Code Description
C2
Transmitter sensor matching - trim to specific Rosemount RTD calibration schedule (CVD
constants)
Head
Rail
A FW A
5-Point calibration
Code Description
C4
5-Point calibration (use option code Q4 to generate a calibration certificate)
Head
Rail
A FW A
Calibration certificate
Code Description
Q4
Calibration certificate (3-Point calibration with certificate)
QP
Calibration certification and tamper evident seal
Head
Rail
A FW A
��
�
Custody transfer
Code Description
D4
MID Custody Transfer (Europe)
Head
Rail
A FW A
��
�
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Rosemount 644
March 2021
Quality certification for safety
Code Description
QT
Safety Certified to IEC 61508 with certificate of FMEDA data
Head
Rail
A FW A
��
�
Shipboard certification
Code Description
SBS American Bureau of Shipping (ABS) Type Approval
SBV Bureau Veritas (BV) Type Approval
SDN Det Norske Veritas (DNV) Type Approval
SLL
Lloyd's Register (LR) Type Approval
Head
Rail
A FW A
�
�
�
�
External ground
Code Description
G1
External ground lug assembly (see External ground screw assembly assembly )
Head
Rail
A FW A
�
Transient protection
Transient protection option requires the use of J1, J2, J3, J4, D1, or D2.
Transient protection with output option code F only available with E1, EM, EP, E2, E3, E4, E5, E7, I1, I3, I7, N1, N3, N7, and NA product certifications.
Code Description
T1
Integral transient protector
Head
Rail
A FW A
�
�
Cable gland
Code Description
G2
Cable gland (7.5�11.99 mm)
G7
Cable gland, M20 � 1.5, Ex e, blue polyamide (5�9 mm)
Head
Rail
A FW A
�
�
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March 2021
Rosemount 644
Cover chain
Code Description
G3
Cover chain
Head
Rail
A FW A
�
Conduit electric connector
This option is available with Intrinsically Safe approvals only. For USA Intrinsically Safe or non-incendive approval (option code I5), install in accordance with Rosemount drawing 03151-1009.
Code Description
GE
M12, 4-pin, male connector (eurofast�)
GM
A size mini, 4-pin, male connector (minifast�)
Head
Rail
A FW A
�
�
External label
Code Description
EL
External label for ATEX Intrinsic Safety
Head
Rail
A FW A
�
HART revision configuration
Code Description HR5 Configured for HART� Revision 5 HR7(1) Configured for HART Revision 7 (1) Configures the HART output to HART Revision 7. The device can be field configured to HART Revision 5 if needed.
Head
Rail
A FW A
��
�
��
�
Assemble to options
Code Description
XA
Sensor specified separately and assembled to transmitter
Head
Rail
A FW A
�
Extended product warranty
Code Description
WR3 WR5
3-year limited warranty 5-year limited warranty
Head
Rail
A FW A
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Rosemount 644
March 2021
Enclosure option valid with individual approval codes
Note For additional options (e.g., K codes), contact your local Emerson representative.
Table 1: Rosemount 644 Enclosure Options Valid with Individual Approval Codes
Code NA E5 I5 K5
NK KC
KB
KD
I6 K6
I3 E3 N3 E1 N1 NC K1 ND KA
I1 E7 I7 N7 NG K7 I2 E4 E2
Hazardous location approval description
Enclosure option valid with approval
No approval
J1, J2, J3, J4, R1, R2, R3, R4, J5, J6, J7, J8, S1, S2, S3, S4, D1, D2
USA Explosion proof; Dust Ignition-proof
J1, J2, J3, J4, R1, R2, R3, R4, J5, J6, J7, J8, D1, D2
USA Intrinsically Safe; Non-incendive
J1, J2, J3, J4, R1, R2, R3, R4, J5, J6, J7, J8, D1, D2
USA Explosion proof; Intrinsically Safe; Nonincendive; Dust Ignition-proof
J1, J2, J3, J4, R1, R2, R3, R4, J5, J6, J7, J8, D1, D2
IECEx Dust
J1, J2, J3, J4, R1, R2, R3, R4, J5, J6, J7, J8, D1, D2
USA and Canada Intrinsically Safe and Nonincendive
Only available with Rail mount device
USA and Canada: Explosion proof; Intrinsically Safe; J2, J4, R2, R4, J6, J8, D2 Non-incendive; Dust Ignition-proof
USA, Canada, and ATEX Explosion proof, Intrinsically J2, J4, R2, R4, J6, J8, D2 Safe
Canada Intrinsically Safe
J1, J2, J3, J4, R1, R2, R3, R4, J5, J6, J7, J8, D1, D2
Canada Explosion proof; Intrinsically Safe; Nonincendive; Dust Ignition-proof
J2, J4, R2, R4, J6, J8, D2
China Intrinsic Safety
J1, J2, J3, J4, R1, R2, R3, R4, J5, J6, J7, J8, D1, D2
China Flameproof
R1, R2, R3, R4, J1, J2, J3, J4, J5, J6, J7, J8, D1, D2
China Type n
R1, R2, R3, R4, J1, J2, J3, J4, J5, J6, J7, J8, D1, D2
ATEX Flameproof
J1, J2, J3, J4, R1, R2, R3, R4, J5, J6, J7, J8, D1, D2
ATEX Type n
J1, J2, J3, J4, R1, R2, R3, R4, J5, J6, J7, J8, D1, D2
ATEX Type n Component
None
ATEX Flameproof; Intrinsic Safety; Type n; Dust
J1, J2, J3, J4, R1, R2, R3, R4, J5, J6, J7, J8, D1, D2
ATEX Dust Ignition-Proof
J1, J2, J3, J4, R1, R2, R3, R4, J5, J6, J7, J8, D1, D2
Canada and ATEX: Explosion proof; Intrinsically Safe; J2, J4, R2, R4, J6, J8, D2 Non-incendive
ATEX Intrinsic Safety
J1, J2, J3, J4, R1, R2, R3, R4, J5, J6, J7, J8, S1, S2, S3, S4, D1, D2
IECEx Flameproof
J1, J2, J3, J4, R1, R2, R3, R4, J5, J6, J7, J8, D1, D2
IECEx Intrinsic Safety
J1, J2, J3, J4, R1, R2, R3, R4, J5, J6, J7, J8, S1, S2, S3, S4, D1, D2
IECEx Type n
J1, J2, J3, J4, R1, R2, R3, R4, J5, J6, J7, J8, D1, D2
IECEx Type n Component
None
IECEx Flameproof; Intrinsic Safety; Type n; Dust
J1, J2, J3, J4, R1, R2, R3, R4, J5, J6, J7, J8, D1, D2
INMETRO Intrinsic Safety
J1, J2, J3, J4, R1, R2, R3, R4, J5, J6, J7, J8
Japan Flameproof
J2, J6
INMETRO Flameproof
R1, R2, R3, R4, J1, J2, J3, J4, J5, J6, J7, J8, D1, D2
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Rosemount 644
Table 1: Rosemount 644 Enclosure Options Valid with Individual Approval Codes (continued)
Code Hazardous location approval description
Enclosure option valid with approval
KM
Technical Regulations Customs Union (EAC)
J1, J2, J3, J4, J5, J6, J7, J8, R1, R2, R3, R4,
Flameproof, Intrinsic Safety, and Dust-Ignition proof
IM
Technical Regulations Customs Union (EAC) Intrinsic D1, D2, J1, J2, J3, J4, J5, J6, J7, J8, R1, R2, R3, R4, S1, S2, S3, S4
Safety
EM
Technical Regulations Customs Union (EAC)
Flameproof
J1, J2, J3, J4, J5, J6, J7, J8, R1, R2, R3, R4,
K2
INMETRO Flameproof, Intrinsic Safety
R1, R2, R3, R4, J1, J2, J3, J4, J5, J6, J7, J8
Tagging
Hardware 18 characters total Tags are adhesive or metal labels Tag is permanently attached to transmitter
Software The transmitter can store up to 32 characters for FOUNDATION Fieldbus and PROFIBUS PA or 8 for HART protocol. If no characters are specified, the first 8 characters of the hardware tag are the default. An optional 32-character software tag is available when option code HR7 is ordered.
Considerations
External ground screw assembly
The external ground screw assembly can be ordered by specifying code G1 when an enclosure is specified. However, some approvals include the ground screw assembly in the transmitter shipment, hence it is not necessary to order code G1. The Table 2 identifies which approval options include the external ground screw assembly and which do not.
Table 2: External Ground Screw Assembly
Option code
External Ground Screw Assembly Included?
E5, I1, I2, I3, I4, I5, I6, I7, IM, IP, K5, K6, NA, KB
No�order option code G1
E1, E2, E3, E4, E7, EM, EP, KM, KP, K7, N1, N7, ND, K1, K2, KA, Yes NK, N3, KD, T1
Table 3: Enclosure Spares Description Universal head, aluminum, standard cover, 2-conduit - M20 entries Universal head, aluminum, display cover, 2-conduit - M20 entries Universal head, aluminum, standard cover, 2-conduit - ��14 NPT entries Universal head, aluminum, display cover, 2-conduit - ��14 NPT entries Universal head, SST, standard cover, 2-conduit - M20 entries Universal head, SST, display cover, 2-conduit - M20 entries
Part number 00644-4420-0002 00644-4420-0102 00644-4420-0001 00644-4420-0101 00644-4433-0002 00644-4433-0102
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Rosemount 644
Table 3: Enclosure Spares (continued) Description Universal head, SST, standard cover, 2-conduit - ��14 NPT entries Universal head, SST, display cover, 2-conduit - ��14 NPT entries Connection head, aluminum, standard cover, 2-conduit - M20 � � ANPT entries Connection head, aluminum, display cover, 2-conduit - M20 � � ANPT entries Connection head, aluminum, standard cover, 2-conduit - ��14 NPT � � ANPT entries Connection head, aluminum, display cover, 2-conduit - ��14 NPT � � ANPT entries Connection head, SST, standard cover, 2-conduit - M20 � � ANPT entries Connection head, SST, display cover, 2-conduit - M20 � � ANPT entries Connection head, SST, standard cover, 2-conduit - ��14 NPT � � ANPT entries Connection head, SST, display cover, 2-conduit - ��14 NPT � � ANPT entries Connection head, polished SST, standard cover, 2-conduit - M20 � 1.5 entries Connection head, polished SST, display cover, 2-conduit - M20 � 1.5 entries Connection head, polished SST, standard cover, 2-conduit - M20 � 1.5/M24 � 1.5 entries Connection head, polished SST, display cover, 2-conduit - M20 � 1.5/M24 � 1.5 entries Connection head, polished SST, standard cover, 2-conduit - � �14 NPT entries Connection head, polished SST, display cover, 2-conduit - ��14 NPT entries Connection head, polished SST, standard cover, 2-conduit - ��14 NPSM entries Connection head, polished SST, display cover, 2-conduit - ��14 NPSM entries Universal head, aluminum, standard cover, 3-conduit - M20 entries Universal head, aluminum, display cover, 3-conduit - M20 entries Universal head, aluminum, standard cover, 3-conduit - ��14 NPT entries Universal head, aluminum, display cover, 3-conduit - ��14 NPT entries Universal head, SST, standard cover, 3-conduit - M20 entries Universal head, SST, display cover, 3-conduit - M20 entries Universal head, SST, standard cover, 3-conduit - � - 14 NPT entries Universal head, SST, display cover, 3-conduit - � - 14 NPT entries
Table 4: Display Kit Spares Description Display only Rosemount 644 HART LCD display (option M5) Rosemount 644 HART LOI (option M4) Rosemount 644 FOUNDATION Fieldbus LCD display (option M5) Rosemount 644 PROFIBUS PA LCD display (option M5) Rosemount 644 HART Legacy display kit (option M5 - device rev 7)
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March 2021
Part number 00644-4433-0001 00644-4433-0101 00644-4410-0021 00644-4410-0121 00644-4410-0011 00644-4410-0111 00644-4411-0021 00644-4411-0121 00644-4411-0011 00644-4411-0111 00079-0312-0033 00079-0312-0133 00079-0312-0034 00079-0312-0134 00079-0312-0011 00079-0312-0111 00079-0312-0022 00079-0312-0122 00644-4439-0001 00644-4439-0101 00644-4439-0002 00644-4439-0102 00644-4439-0003 00644-4439-0103 00644-4439-0004 00644-4439-0104
Part number
00644-7730-0001 00644-7730-1001 00644-4430-0002 00644-4430-0002 00644-4430-0002
Emerson.com/Rosemount
March 2021
Rosemount 644
Table 4: Display Kit Spares (continued)
Description
Part number
Display with aluminum cover
Rosemount 644 HART LCD display (option M5)
00644-7730-0011
Rosemount 644 HART LCD display (option M5 - for use with options J1-J2)
00644-7730-0111
Rosemount 644 HART LOI (option M4)
00644-7730-1011
Rosemount 644 HART LOI (option M4 - for use with options J1-J2)
00644-7730-1111
Rosemount 644 FOUNDATION Fieldbus LCD display (option M5) Rosemount 644 PROFIBUS PA LCD display (option M5)
00644-4430-0001 00644-4430-0001
Rosemount 644 HART Legacy display kit (option M5)
00644-4430-0001
Display with SST meter cover Rosemount 644 HART LCD display (option M5) (1) Rosemount 644 HART LCD display (option M5) (2) Rosemount 644 HART LOI (option M4)(1) Rosemount 644 HART LOI (option M4)(2) Rosemount 644 FOUNDATION Fieldbus LCD display (option M5)(1) Rosemount 644 PROFIBUS PA LCD display (option M5)(1) Rosemount 644 HART Legacy display kit (option M5)(1)
00644-7730-0021 00644-7730-0121 00644-7730-1021 00644-7730-1121 00644-4430-0011 00644-4430-0011 00644-4430-0011
(1) Covers provided are compatible with the 3-in. (76 mm) universal junction box and Rosemount connection head enclosure styles. (2) Cover provided is compatible with the 3.5-in. (89 mm) universal junction box and field mount enclosure styles.
Table 5: Transient Protection Spares
Description
Part number
HART transient protector without enclosure
00644-4537-0001
HART transient protector with universal head, aluminum, standard cover, 3-conduit - M20 HART transient protector with universal head, aluminum, display cover, 3-conduit - M20 HART transient protector with universal head, aluminum, standard cover, 3-conduit - � NPT HART transient protector with universal head, aluminum, display cover, 3-conduit - � NPT
00644-4538-0001 00644-4538-0101 00644-4538-0002 00644-4538-0102
HART transient protector with universal head, SST, standard cover, 3-conduit - M20 HART transient protector with universal head, SST, display cover, 3-conduit - M20 HART transient protector with universal head, SST, standard cover, 3-conduit - �-NPT HART transient protector with universal head, SST, display cover, 3-conduit - �-NPT
00644-4538-0003 00644-4538-0103 00644-4538-0004 00644-4538-0104
FOUNDATION Fieldbus transient protector without enclosure
00644-4539-0001
Table 6: Miscellaneous Accessories Description Stainless steel meter housing cover, Fieldbus extended Ground screw assembly kit(1) Mounting screws and springs
Part number 03031-0199-0025 00644-4431-0001 00644-4424-0001
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March 2021
Table 6: Miscellaneous Accessories (continued)
Description Hardware kit for mounting a Rosemount 644 head mount to a DIN rail (includes clips for symmetrical and asymmetrical rails) Hardware kit for retrofitting a Rosemount 644 head mount in an existing threaded sensor connection head (former option code L1) U-bolt mounting kit for universal housing U-bolt mounting bracket, 2-in. pipe mount - 316 SST (option B4) L - mounting bracket for 2-in. pipe or panel mounting, SST, 2 g vibration rating (option B5) Universal clip for rail or wall mount 24-in. of symmetric (top hat) rail 24-in. of asymmetric (G) rail Ground clamp for symmetric or asymmetric rail Snap rings kit (used for assembly to a DIN sensor) Cover clamp assembly for 2-conduit J-box Cover clamp assembly for 3-conduit J-box Terminal block, 13 mm M4 mounting screws
(1) Compatible with the 3-in. (76 mm) universal junction box and Rosemount connection head enclosure styles. Table 7: Housing Covers
Description Standard cover- aluminum (J5, J6, R1, R2) Standard cover- SST (J7, J8, R3, R4) Aluminum meter cover (J5, J6, R1, R2) SST meter cover (J7, J8, R3, R4)
Part number 00644-5301-0010
00644-5321-0010
00644-4423-0001 00644-7610-0001 00644-7611-0001 03044-4103-0001 03044-4200-0001 03044-4201-0001 03044-4202-0001 00644-4432-0001 00644-4434-0001 00644-4434-0002 00065-0305-0001
Part number 03031-0292-0001 03031-0292-0002 03031-0199-0015 03031-0199-0025
Specifications
HART, FOUNDATION Fieldbus, and PROFIBUS PA Protocols
Functional specifications Inputs
User-selectable; sensor terminals rated to 42.4 Vdc. See Accuracy example (FOUNDATION Fieldbus and PROFIBUS PA devices). Output Single two-wire device with either 4�20 mA/HART�, linear with temperature or input; or completely digital outputs with FOUNDATIONTM Fieldbus communication (ITK 5.01 compliant), or PROFIBUS� PA (compliant with profile 3.02). Isolation Input/output isolation tested to 620 Vrms.
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Rosemount 644
Local display options
LCD display
LCD display with LOI
An optional 11 digit, two-line integral LCD display operates with a floating or fixed decimal point. It displays engineering units (�F, �C, �R, K, Ohms and mV), mA, and percent of range. The display can be configured to alternate between selected display options. Display settings are pre-configured at the factory according to the standard transmitter configuration. They can be re-configured in the field using either HART, FOUNDATION Fieldbus, or PROFIBUS PA communications.
An optional 14-digit, two-line integral LCD display operates with a floating or fixed decimal point. The LOI includes all features and functionality available in the regular display with an added two-button configuration capability directly at the display interface. The LOI also has optional password protection for secure operations. The LOI is only available on the Rosemount 644 HART head mount and field mount transmitters.
For more information on the LOI configuration options or further functionality that the LOI offers, see the Rosemount 644 Temperature Transmitter Reference Manual.
Humidity limits 0�95 percent relative humidity
Update time 0.5 second per sensor
Accuracy (default configuration) PT 100 HART standard: �0.15 �C HART enhanced: �0.1 �C FOUNDATION Fieldbus: �0.15 �C PROFIBUS PA: �0.15 �C
Physical specifications
Material selection
Emerson provides a variety of Rosemount product with various product options and configurations including materials of construction that can be expected to perform well in a wide range of applications. The Rosemount product information presented is intended as a guide for the purchaser to make an appropriate selection for the application. It is the purchaser's sole responsibility to make a careful analysis of all process parameters (such as all chemical components, temperature, pressure, flow rate, abrasives, contaminants, etc.), when specifying product, materials, options and components for the particular application. Emerson is not in a position to evaluate or guarantee the compatibility of the process fluid or other process parameters with the product, options, configuration or materials of construction selected.
Conformance to specifications (�3 [Sigma])
Technology leadership, advanced manufacturing techniques, and statistical process control ensure specification conformance to at least �3.
Table 8: Electrical Connections
Rosemount model Head mount (HART�) Head mount (FOUNDATIONTM Fieldbus/PROFIBUS� PA) Field mount (HART) Rail mount (HART)
Power and sensor terminals Captivated screw terminals permanently fixed to terminal block Compression screw terminals permanently fixed to the terminal block Captivated screw terminals permanently fixed to the terminal block Compression screw permanently fixed to front panel
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Table 9: Field Communicator Connections
Communication terminals Rosemount 644 head/field mount Rosemount 644 rail mount
Clips permanently fixed to terminal block Clips permanently fixed to front panel
Table 10: Materials of Construction
Electronics housing and terminal block
Rosemount 644 head/ field mount
GE polyphenylene oxide glass reinforced GFN -2 or -3
Rosemount 644 rail mount
Polycarbonate
Enclosure (Options J1, J2, J5, J6, R1, R2, D1, and D2)
Housing
Low-copper aluminum
Paint
Polyurethane
Cover O-ring
Buna-N
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 644R attaches directly to a wall or a DIN rail. 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
See mounting kits for Rosemount 644H for the special hardware that is available to: Mount a Rosemount 644H to a DIN rail (see Dimensional drawings). Retrofit a new Rosemount 644H to replace an existing Rosemount 644H Transmitter in an existing threaded sensor
connection head (see Table 3).
Table 11: Weight
Code 644H 644H 644H 644R M5 M4 J1, J2 J1, J2
Options HART, head mount transmitter FOUNDATION Fieldbus, head mount transmitter PROFIBUS PA, head mount transmitter HART, rail mount transmitter LCD display LCD display with local operator interface Universal head, 3-conduits, standard cover Universal head, 3-conduits, meter cover
Weight 78 g (2.75 oz) 92 g (3.25 oz) 92 g (3.25 oz) 174 g (6.14 oz) 34 g (1.2 oz) 34 g (1.2 oz) 718 g (25.33 oz) 826 g (29.14 oz)
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Table 11: Weight (continued) Code J3, J4 J3, J4 J5, J6 J5, J6 J7, J8 J7, J8 R1, R2 R1, R2 R3, R4 R3, R4 D1, D2
Options Cast SST universal head, 3-conduits, standard cover Cast SST universal head, 3-conduits, meter cover Aluminum 2-conduits, universal head, standard cover Aluminum 2-conduits, universal head, meter cover Cast SST universal head 2-conduits, standard, cover Cast SST universal head 2-conduits, meter cover Aluminum connection head, standard cover Aluminum connection head, meter cover Cast SST connection head, standard cover Cast SST connection head, meter cover HART, field mount transmitter, aluminum housing, meter cover, standard cover
Weight 2073 g (73.12 oz) 2148 g (75.77 oz) 520g (18.43 oz) 604 g (21.27 oz) 1673 g (59.0 oz) 1835 g (64.73 oz) 523 g (18.45 oz) 618 g (21.79 oz) 1615 g (56.97 oz) 1747 g (61.62 oz) 1128 g (39.79 oz)
Table 12: Weight (stainless steel housing for biotechnology, pharmaceutical industries, and sanitary applications)
Option codes S1, S2, S3, S4
Standard cover 840 g (27 oz)
Meter cover 995 g (32 oz)
Enclosure ratings (Rosemount 644H/F) 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.
Performance specifications
Electromagnetic Compatibility (EMC) Meets all industrial environment requirements of EN61326 and NAMUR NE-21. Maximum deviation <1% span during EMC disturbance. Note During surge event, device may exceed maximum EMC deviation limit or reset; however, device will self-recover and return to normal operation within specified start-up time.
Power supply effect Less than �0.005 percent of span per volt
Stability RTDs and thermocouples have a stability of �0.15 percent of output reading or 0.15 �C (whichever is greater) for 24 months. When ordered with the P8 option code: RTDs: �0.25 percent of reading or 0.25 �C, whichever is greater, for five years Thermocouples: �0.5 percent of reading or 0.5 �C, whichever is greater, for five years
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Self calibration
The analog-to-digital measurement circuitry automatically self-calibrates for each temperature update by comparing the dynamic measurement to extremely stable and accurate internal reference elements.
Table 13: Vibration effect
The Rosemount 644 HART� head mount and field mount are tested to the following specifications with no effect on performance per IEC 60770-1, 2010:
Frequency 10�60 Hz 60�1000 Hz
Vibration 0.35 mm displacement 5g (50 m/s2) peak acceleration
The Rosemount 644 Fieldbus and PROFIBUS are tested to the following specifications with no effect on performance per IEC 60770-1: 1999:
Frequency 10�60 Hz 60�2000 Hz
Vibration 0.21 mm displacement 3 g peak acceleration
Table 14: Rosemount 644 Sensor Connections Diagrams Emerson provides 4-wire sensors for all single element RTDs. You can use these RTDs in 3-wire configurations by leaving the unneeded leads disconnected and insulated with electrical tape.
HART head mount
�+ +�
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Table 14: Rosemount 644 Sensor Connections Diagrams (continued) HART rail mount Fieldbus PROFIBUS
Rosemount 644
+_
1 234 1 2 3 4
2-wire
3-wire
RTD and RTD and *
12 3 4
4-wire RTD and
12 34
T/C and mV
HART field mount
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FOUNDATION Fieldbus specifications
Function blocks
Resource block
The resource block contains physical transmitter information including available memory, manufacture identification, device type, software tag, and unique identification.
Transducer block
The transducer block contains the actual temperature measurement data, including sensor 1 and terminal temperature. It includes information about sensor type and configuration, engineering units, linearization, reranging, damping, temperature correction, and diagnostics.
LCD display block The LCD display block is used to configure the local display, if an LCD display is being used.
Analog input (AI) Processes the measurement and makes it available on the Fieldbus segment. Allows filtering, alarming, and engineering unit changes.
PID block
The transmitter provides control functionality with one PID function block in the transmitter. The PID block can be used to perform single loop, cascade, or feedforward control in the field.
Block Resource Transducer LCD display block Analog input 1 Analog Input 2 PID 1
Execution time (milliseconds) N/A N/A N/A 45 45 60
Turn-on time Performance within specifications in less than 20 seconds after power is applied, when damping value is set to zero seconds.
Status If self-diagnostics detect a sensor burnout or a transmitter failure, the status of the measurement will be updated accordingly. Status may also send the AI output to a safe value.
Power supply Powered over FOUNDATION Fieldbus with standard Fieldbus power supplies. The transmitter operates between 9.0 and 32.0 Vdc, 12 mA maximum.
Alarms The AI function block allows the user to configure the alarms to HI-HI, HI, LO, or LO-LO with hysteresis settings.
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Backup Link Active Scheduler (LAS)
The transmitter is classified as a device link master, which means it can function as a LAS if the current link master device fails or is removed from the segment.
The host or other configuration tool is used to download the schedule for the application to the link master device. In the absence of a primary link master, the transmitter will claim the LAS and provide permanent control for the H1 segment.
FOUNDATION Fieldbus parameters
Schedule entries
25
Links
16
Virtual Communications Relationships (VCR)
12
PROFIBUS PA specifications
Function blocks
Physical block The physical block contains physical transmitter information including manufacturer identification, device type, software tag, and unique identification.
Transducer block The transducer block contains the actual temperature measurement data, including sensor 1 and terminal temperature. It includes information about sensor type and configuration, engineering units, linearization, re-ranging, damping, temperature correction, and diagnostics.
Analog Input block (AI) The AI block processes the measurement and makes it available on the PROFIBUS segment. Allows filtering, alarming, and engineering unit changes.
Turn-on time Performance within specifications in less than 20 seconds after power is applied, when damping value is set to zero seconds.
Powersupply Powered over PROFIBUS with standard Fieldbus power supplies. The transmitter operates between 9.0 and 32.0 Vdc,12 mA maximum.
Alarms The AI function block allows the user to configure the alarms to HI-HI, HI, LO, or LO-LO with hysteresis settings.
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4�20 mA/HART specifications
Power supply External power supply required. Transmitters operate on 12.0�42.4 Vdc transmitter terminal voltage (with 250 ohm load, 18.1 Vdc power supply voltage is required). Transmitter power terminals rated to 42.4 Vdc. Figure 2: Load Limitations
Maximum load = 40.8 � (supply voltage - 12.0)(1)
Load (ohms)
1240 1100 1000
750
4-20 mA dc
500
250
0
10 18.1
30
12.0 Min
HART and Analog operating range
Analog only operating range 42.4
(1) Without transient protection (optional).
Note HART� Communication requires a loop resistance between 250 and 1100 Ohms. Do not communicate with the transmitter when power is below 12 Vdc at the transmitter terminals.
Temperature limits
Description With LCD display (2)
Operating limit(1)
�40 to 185 �F �40 to 85 �C
Storage limit(1)
�50 to 185 �F �45 to 85 �C
Without LCD display
�40 to 185 �F �40 to 85 �C
�58 to 250 �F �50 to 120 �C
(1) The lower operating and storage temperature limit of a transmitter with option code BR6 is �76 �F (�60 �C). (2) LCD display may not be readable and display updates will be slower at temperatures below �22 �F (�30 �C).
Hardware and software failure mode
The Rosemount 644 features software driven alarm diagnostics and an independent circuit, which is designed to provide backup alarm output if the microprocessor software fails. The alarm direction (HI/LO) is user-selectable using the failure mode switch. If failure occurs, the position of the switch determines the direction in which the output is driven (HI or LO). The switch feeds into the digital-to-analog (D/A) converter, which drives the proper alarm output even if the microprocessor fails. The values at which the transmitter software drives its output in failure mode depends on whether it is configured to standard, custom, or NAMURcompliant (NAMUR recommendation NE 43, June 1997) operation. Table 15 shows the configuration alarm ranges.
Table 15: Available Alarm Range
Units - mA
Min
Max
Rosemount
Namur
High alarm Low alarm(1) High saturation Low saturation(1)
21 3.5 20.5 3.7(3)
23 3.75 20.9(2) 3.9
21.75 3.75 20.5 3.9
21 3.6 20.5 3.8
(1) Requires 0.1 mA gap between low alarm and low saturation values.
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(2) Rail mount transmitters have a high saturation max of 0.1 mA less than the high alarm setting, with a max value of 0.1 mA less than the high alarm max.
(3) Rail mount transmitters have a low saturation min of 0.1 mA greater than the low alarm setting, with a minimum of 0.1 mA greater than the low alarm min.
Custom alarm and saturation level
Custom factory configuration of alarm and saturation level is available with option code C1 for valid values. These values can also be configured in the field using a Field Communicator.
Turn-on time
Performance within specifications in less than six seconds after power is applied, when damping value is set to zero seconds.
External transient protection
The Rosemount 470 Transient Protector prevents damage from transients induced by lightning, welding, or heavy electrical equipment. For more information, refer to the Rosemount 470 Transient Protector Product Data Sheet. Transient Protection (option code T1)
The transient protector helps to prevent damage to the transmitter from transients induced on the loop wiring by lightning, welding, heavy electrical equipment, or switch gears. The transient protection electronics are contained in an add-on assembly that attaches to the standard transmitter terminal block. The external ground lug assembly (code G1) is included with the transient protector. The transient protector has been tested per the following standard: IEEE C62.41-2002 (IEEE 587)/Location Categories B3. 6 kV/3 kA peak (1.2 50 � Wave 8 20 s Combination Wave) 6 kV/0.5 kA
peak (100 kHz Ring Wave) EFT, 4 kVpeak, 2.5 kHz, 5 � 50 nS
Loop resistance added by protector: 22 ohms max.
Nominal clamping voltages: 90 V (common mode), 77 V (normal mode)
Standard accuracy
Table 16: Rosemount 644 Transmitter Accuracy
Sensor options 2-, 3-, 4-wire RTDs
Sensor reference
Input ranges
�C
�F
Pt 100 ( = 0.00385) IEC 751
�200 to �328 to
850
1562
Pt 200 ( = 0.00385) IEC 751 Pt 500 ( = 0.00385) IEC 751
�200 to 850
�200 to 850
�328 to 1562
�328 to 1562
Pt 1000 ( = 0.00385) IEC 751 Pt 100 ( = 0.003916) JIS 1604
�200 to 300
�200 to 645
�328 to 572
�328 to 1193
Pt 200 ( = 0.003916) JIS 1604
�200 to �328 to
645
1193
Ni 120
Edison Curve No. 7
�70 to 300
�94 to 572
Cu 10
Edison Copper �50 to Winding No. 15 250
�58 to 482
Pt 50 (=0.00391)
GOST 6651-94 �200 to �328 to
550
1022
Minimum span (1)
�C
�F
10
18
10
18
10
18
10
18
10
18
10
18
10
18
10
18
10
18
Digital accuracy (2) D/A accuracy(3)(4)
�C
�F
� 0.15 � 0.27 � 0.03% of span
� 0.15 � 0.27 � 0.03% of span
� 0.19 � 0.34 � 0.03% of span
� 0.19 � 0.34 � 0.03% of span
� 0.15 � 0.27 � 0.03% of span
� 0.27 � 0.49 � 0.03% of span
� 0.15 � 0.27 � 0.03% of span
� 1.40 � 2.52 � 0.03% of span
� 0.30 � 0.54 � 0.03% of span
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Table 16: Rosemount 644 Transmitter Accuracy (continued)
Pt 100 (=0.00391) GOST 6651-94 �200 to �328 to 10
18
550
1022
Cu 50 (=0.00426) GOST 6651-94 �50 to �58 to 10
18
200
392
Cu 50 (=0.00428) GOST 6651-94 �185 to �301 to 10
18
200
392
Cu 100 (=0.00426) GOST 6651-94 �50 to �58 to 10
18
200
392
Cu 100 (=0.00428) GOST 6651-94 �185 to �301 to 10
18
200
392
Thermocouples (5)
Type B (6)
NIST
100 to 212 to 25
45
Monograph 1820
3308
175, IEC 584
Type E
NIST
�200 to �328 to 25
45
Monograph 1000
1832
175, IEC 584
Type J Type K (7)
NIST
�180 to �292 to 25
45
Monograph 760
1400
175, IEC 584
NIST
�180 to �292 to 25
45
Monograph 1372
2501
175, IEC 584
Type N
NIST
�200 to �328 to 25
45
Monograph 1300
2372
175, IEC 584
Type R
NIST
0 to 1768 32 to
25
45
Monograph
3214
175, IEC 584
Type S
NIST
0 to 1768 32 to
25
45
Monograph
3214
175, IEC 584
Type T
NIST
�200 to �328 to 25
45
Monograph 400
752
175, IEC 584
Type L
DIN 43710
�200 to �328 to 25
45
900
1652
Type U
DIN 43710
�200 to �328 to 25
45
600
1112
Type C
W5Re/W26Re 0 to 2000 32 to
25
45
ASTM E 988-96
3632
Type L
GOST R
�200 to �392 to 25
45
8.585-2001 800
1472
Other input types
Millivolt input
�10 to 100 mV
3 mV
March 2021
� 0.15 � 0.27 � 0.03% of span � 1.34 � 2.41 � 0.03% of span � 1.34 � 2.41 � 0.03% of span � 0.67 � 1.20 � 0.03% of span � 0.67 � 1.20 � 0.03% of span
� 0.77 � 1.39 � 0.03% of span � 0.20 � 0.36 � 0.03% of span � 0.35 � 0.63 � 0.03% of span � 0.50 � 0.90 � 0.03% of span � 0.50 � 0.90 � 0.03% of span � 0.75 � 1.35 � 0.03% of span � 0.70 � 1.26 � 0.03% of span � 0.35 � 0.63 � 0.03% of span � 0.35 � 0.63 � 0.03% of span � 0.35 � 0.63 � 0.03% of span � 0.70 � 1.26 � 0.03% of span � 0.25 � 0.45 � 0.03% of span
� 0.015 mV
� 0.03% of span
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Table 16: Rosemount 644 Transmitter Accuracy (continued)
2-, 3-, 4-wire Ohm input
0 to 2000 ohms
20 ohm
� 0.45 ohm
� 0.03% of span
(1) No minimum or maximum span restrictions within the input ranges. Recommended minimum span will hold noise within accuracy specification with damping at zero seconds.
(2) Digital accuracy: Digital output can be accessed by the Field Communicator. (3) Total analog accuracy is the sum of digital and D/A accuracies. (4) Applies to HART/4�20 mA devices. (5) Total digital accuracy for thermocouple measurement: sum of digital accuracy +0.25 �C (0.45 �F) (cold junction accuracy). (6) Digital accuracy for NIST Type B is �3.0 �C (�5.4 �F) from 100 to 300 �C (212 to 572 �F). (7) Digital accuracy for NIST Type K is �0.7 �C (�1.3 �F) from �180 to �90 �C (�292 to �130 �F).
Accuracy example (HART devices) When using a Pt 100 ( = 0.00385) sensor input with 0 to 100 �C span: Digital accuracy = � 0.15 �C D/A accuracy = � 0.15 �C of 100 �C or � 0.15 �C Total accuracy = � 0.18 �C
Accuracy example (FOUNDATION Fieldbus and PROFIBUS PA devices)
When using a Pt 100 ( = 0.00385) sensor input: Total accuracy = �0.15 �C No D/A accuracy effects apply.
Table 17: Ambient Temperature Effect
Sensor options
Sensor reference
Input range (�C)
Temperature effects per 1.0 �C (1.8 �F) change in ambient temperature(1)(2)(3)
2-, 3-, 4-wire RTDs Pt 100 ( = 0.00385)
IEC 751
�200 to 850 0.003 �C (0.0054 �F)
Pt 200 ( = 0.00385)
IEC 751
�200 to 850 0.004 �C (0.0072 �F)
Pt 500 ( = 0.00385)
IEC 751
�200 to 850 0.003 �C (0.0054 �F)
Pt 1000 ( = 0.00385)
IEC 751
�200 to 300 0.003 �C (0.0054 �F)
Pt 100 ( = 0.003916)
JIS 1604
�200 to 645 0.003 �C (0.0054 �F)
Range
Entire sensor input range
Entire sensor input range
Entire sensor input range
Entire sensor input range
Entire sensor input range
D/A effect (4)
0.001% of span 0.001% of span 0.001% of span 0.001% of span 0.001% of span
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Table 17: Ambient Temperature Effect (continued)
Sensor options
Sensor reference
Input range (�C)
Pt 200 ( = 0.003916)
JIS 1604
�200 to 645
Temperature effects per 1.0 �C (1.8 �F) change in ambient temperature(1)(2)(3)
0.004 �C (0.0072 �F)
Ni 120
Edison Curve No. 7 �70 to 300 0.003 �C (0.0054 �F)
Cu 10 Pt 50 ( = 0.00391)
Edison Copper Winding No. 15
�50 to 250 0.03 �C (0.054 �F)
GOST 6651-94
�200 to 550 0.004 �C (0.0072 �F)
Pt 100 ( = 0.00391)
GOST 6651-94
�200 to 550 0.002 �C (0.0036 �F)
Cu 50 ( = 0.00426)
GOST 6651-94
�50 to 200 0.008 �C (0.0144 �F)
Cu 50 ( = 0.00428)
GOST 6651-94
�185 to 200 0.008 �C (0.0144 �F)
Cu 100 ( = 0.00426)
GOST 6651-94
�50 to 200 0.004 �C (0.0072 �F)
Cu 100 ( = 0.00428)
GOST 6651-94
�185 to 200 0.004 �C (0.0072 �F)
Thermocouples Type B
Type E
NIST Monograph 175, IEC 584
NIST Monograph 175, IEC 584
100 to 1820 �200 to 1000
0.014 �C
0.032 �C � (0.0025% of (T � 300))
0.054 �C � (0.011% of (T � 100))
0.005 �C + (0.00043% of T)
Range
D/A effect (4)
Entire sensor input range
Entire sensor input range
Entire sensor input range
Entire sensor input range
Entire sensor input range
Entire sensor input range
Entire sensor input range
Entire sensor input range
Entire sensor input range
0.001% of span 0.001% of span 0.001% of span 0.001% of span 0.001% of span 0.001% of span 0.001% of span 0.001% of span 0.001% of span
T 1000 �C 0.001% of span
300 �C T 0.001% of span < 1000 �C
100 �C T 0.001% of span < 300 �C
All
0.001% of span
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Rosemount 644
Table 17: Ambient Temperature Effect (continued)
Sensor options
Sensor reference
Input range (�C)
Temperature effects per 1.0 �C (1.8 �F) change in ambient temperature(1)(2)(3)
Range
D/A effect (4)
Type J
NIST Monograph 175, IEC 584
�180 to 760
0.0054 �C + (0.00029%of T)
0.0054 �C + (0.0025% of absolute value T)
T 0 �C T < 0 �C
0.001% of span 0.001% of span
Type K
NIST Monograph 175, IEC 584
�180 to 1372
0.0061 �C + (0.00054% of T)
0.0061 �C + (0.0025% of absolute value T)
T 0 �C T < 0 �C
0.001% of span 0.001% of span
Type N Type R Type S
NIST Monograph 175, IEC 584
NIST Monograph 175, IEC 584
NIST Monograph 175, IEC 584
�200 to 1300 0.0068 �C + (0.00036% of T) All
0.001% of span
0 to 1768 0 to 1768
0.016 �C 0.023 �C � (0.0036% of T) 0.016 �C 0.023 �C � (0.0036% of T)
T 200 �C T < 200 �C T 200 �C T < 200 �C
0.001% of span 0.001% of span 0.001% of span 0.001% of span
Type T DIN Type L
NIST Monograph 175, IEC 584
DIN 43710
�200 to 400 �200 to 900
0.0064 �C
0.0064 �C +(0.0043% of absolute value T)
0.0054 �C + (0.00029% of T)
T 0 �C T < 0 �C
T 0 �C
0.001% of span 0.001% of span
0.001% of span
DIN Type U
Type W5Re/W26Re GOST Type L
Other input types Millivolt input
DIN 43710
�200 to 600
ASTM E 988-96
0 to 2000
GOST R 8.585-2001 -200 to 800
0.0054 �C + (0.0025% of absolute value T)
0.0064 �C
0.0064 �C + (0.0043% of absolute value T)
0.016 �C
0.023 �C � (0.0036% of T)
0.007 �C
0.007 �C + (0.003% of absolute value T)
T < 0 �C 0.001% of span
T 0 �C T < 0 �C
0.001% of span 0.001% of span
T 200 �C T < 200 �C T 0 �C T < 0 �C
0.001% of span 0.001% of span 0.001% of span 0.001% of span
�10 to 100 mV 0.0005 mV
Entire sensor input range
0.001% of span
2-, 3-, 4-wire Ohm
0 to 2000 0.0084
Entire sensor input range
0.001% of span
(1) Change in ambient is with reference to the calibration temperature of the transmitter 68 �F (20 �C) from factory. (2) Ambient temperature effect specification valid over minimum temperature span of 50 �F (28 �C). (3) Ambient temperature effects are tripled for temperature below �40 �C. (4) Does not apply to FOUNDATION Fieldbus.
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Rosemount 644
March 2021
Temperature effects example (HART devices) When using a Pt 100 ( = 0.00385) sensor input with a 0�100 �C span at 30 �C ambient temperature: Digital temperature effects: 0.003 �C x (30 � 20) = 0.03 �C D/A effects: [0.001% of 100] x (30 � 20) = 0.01 �C Worst case error: Digital + D/A + Digital Temperature Effects + D/A Effects = 0.15 �C + 0.03 �C + 0.03 �C + 0.01 �C = 0.22 �C
Total probable error:
= 0.16 �C
Temperature effects examples (FOUNDATION Fieldbus devices and PROFIBUS PA) When using a Pt 100 ( = 0.00385) sensor input at 30 �C span at 30 �C ambient temperature: Digital temperature effects: 0.003 �C � (30 � 20) = 0.03 �C D/A effects: No D/A effects apply. Worst case error: Digital + Digital temperature effects = 0.15 �C + 0.03 �C = 0.18 �C
Total probable error:
= 0.153 �C
Table 18: Transmitter Accuracy when Ordered with Option Code P8
Sensor options Sensor 2-, 3-, 4-wire RTDs reference
Pt 100 ( = 0.00385)
IEC 751
Input ranges
�C
�F
�200 to �328 to
850
1562
Minimum span (1)
�C
�F
10
18
Digital accuracy (2) D/A accuracy(3)(4)
�C
�F
� 0.10 � 0.18 �0.02% of span
(1) No minimum or maximum span restrictions within the input ranges. Recommended minimum span will hold noise within accuracy specification with damping at zero seconds.
(2) Digital accuracy: Digital output can be accessed by the Field Communicator. (3) Total analog accuracy is the sum of digital and D/A accuracies. (4) Applies to HART/4�20 mA devices.
Reference accuracy example (HART only)
When using a Pt 100 ( = 0.00385) sensor input with a 0 to 100 �C span: Digital Accuracy would be �0.10 �C, D/A accuracy would be �0.02% of 100 �C or �0.02 �C, Total = �0.12 �C.
Differential capability exists between any two sensor types (dual-sensor option) For all differential configurations, the input range is X to Y where: X = Sensor 1 minimum � Sensor 2 maximum and Y = Sensor 1 maximum � Sensor 2 minimum
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Dimensional drawings
Figure 3: Rosemount 644H (DIN A Head Mount) HART device shown with captivated screw terminals
60 (2.4)
C
33 (1.3)
D
Rosemount 644
FOUNDATION Fieldbus and PROFIBUS device shown with standard compression screw terminals
60 (2.4)
C
33 (1.3)
B A
59 (2.3)
59 (2.3)
24 (.96)
B
E
31 (1.2)
D E
59 (2.3)
A. Failure mode switch B. Meter connector C. Sensor terminals Dimensions are in millimeters (inches).
D. Communication terminals E. Power terminals F. Simulation switch
23 (1.0) F
26 (1.0)
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Rosemount 644
Figure 4: Rosemount 644 Field Mount
Transmitter exploded view
March 2021
Display compartment
Terminal compartment
A. Nameplate B. Cover C. Housing with electronics module D. LCD display E. Display cover Dimensions are in millimeters (inches).
34
F. Failure mode switch G. Meter connector H. Sensor terminals I. Communication terminals J. Power terminals
Emerson.com/Rosemount
March 2021 Figure 5: Rosemount 644 Rail Mount
A. Sensor terminals B. Failure mode switch C. Power terminals Dimensions are in millimeters (inches). Figure 6: Mounting kits for Rosemount 644H
B
A
A. Top hat rail grooves B. G-rail grooves C. Screw holes for mounting to a wall
Emerson.com/Rosemount
Rosemount 644
C
35
Rosemount 644
Figure 7: Rosemount 644H Rail Clips G-Rail (asymmetric)
D
March 2021 Top hat rail (symmetric)
D
E
E
F
F
D. Mounting hardware E. Transmitter F. Rail clip Note Kit (part number 00644-5301-0010) includes mounting hardware and both types of rail kits.
Note Part number 03044-4103-0001.
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Rosemount 644
Figure 8: Threaded-Sensor Universal Head and DIN Style Sensor Connection Head
Threaded-sensor universal head (option code J5, J6, J7 or J8)
DIN style sensor connection head (option code R1, R2, R3 or R4)
112 (4.4)
96 (3.8)
104 (4.0)
95
(3.7)
C
78
(3.0)
B
A
103 (4.0) with LCD Display
128 (5.0) with LCD Display
75
(2.9)
100
(3.9)
D
A. Standard cover B. Display cover C. LCD display D. SST "U" Bolt Mounting, 2-in. pipe (shipped with each connection head ordered with assembly option XA)
Dimensions are in millimeters (inches).
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Rosemount 644
Figure 9: Threaded Sensor Universal Head, 3-conduit (Option code J1 or J2) 108 (4.3)
March 2021
102 (4.0)
90.9 (3.6)
A
A. Standard cover B. Display cover Dimensions are in millimeters (inches).
B
102.6 (4.0) with LCD cover 85.9 (3.4)
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Rosemount 644
Figure 10: Device shown with Transient Protector HART device shown with transient protector (Option code T1)
59
(2.3)
33
A
(1.3)
FOUNDATION Fieldbus device shown with transient protector (Option code T1)
33 (1.3)
A
E
C 67 (2.7)
24 (0.96)
68 (2.7)
D
C D
38 (1.5)
F
B
F
40 (1.6)
31 (1.2)
59
G
(2.3)
G
26 (1.0)
F
F
A. Sensor terminals B. Failure mode switch C. Meter connector D. Power terminals E. Simulation switch F. Transient protector G. Ground wire
Dimensions are in millimeters (inches).
Note Option code T1 requires the use of J1, J2, J3 or J4 enclosure option.
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Rosemount 644
March 2021
Accessory dimensional drawings
Figure 11: Stainless Steel Housing for Biotechnology, Pharmaceutical Industries, and Sanitary Applications
Sanitary housing (option code S1, S2, S3, S4) Standard cover
LCD display cover
AB
C
DB
C
80 (3.1)
76 33 (1.3) (3.0)
61 (2.4) 47
(1.9)
76
33 (1.3)
(3.0)
24 (0.96)
45 (1.8)
25 (1.0)
70 (2.8)
A. Standard cover B. O-ring C. Housing D. LCD display cover Dimensions are in millimeters (inches).
28 (1.1)
74 (2.9)
45 (1.8)
25 (1.0)
70 (2.8)
28 (1.1)
Figure 12: Display
LCD display
B
Enhanced display with LOI
A
D
A
C
C
A. LCD display B. Rosemount 644 Transmitter C. Display rotation Dimensions are in millimeters (inches).
40
B
D. LCD display with LOI E. Display rotation screws
Emerson.com/Rosemount
March 2021
Figure 13: Optional Mounting Option Code B4 Bracket for enclosures J1, J2, J3, and J4
Rosemount 644
Option code B4 bracket for enclosures D1 and D2
100 (3.9) 60
(2.4)
30 (1.2)
25 (1.0)
25 (1.0)
25 (1.0)
2 (0.065)
112 (4.4)
76 (3.0)
Dimensions are in millimeters (inches). Emerson.com/Rosemount
4 (0.14)
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Rosemount 644
Option Code B5 Bracket for enclosures J1, J2, J3, and J4
March 2021 Option code B5 bracket for enclosures D1 and D2
60 (2.4)
175 (6.9)
71 (2.8)
156 (6.2)
71 (2.8)
Dimensions are in millimeters (inches).
60 (2.4)
19 (0.75)
19 (0.75)
2 (0.083)
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Rosemount 644
Configuration
Transmitter configuration The transmitter is available with standard configuration setting for either HART�, FOUNDATIONTM Fieldbus or PROFIBUS� PA. The configuration settings and block configuration may be changed in the field with Emerson DeltaVTM, AMS Suite, Field Communicator or other host or configuration tool.
Table 19: Standard HART configuration
Unless specified, the transmitter will be shipped as follows:
Sensor type 4 mA value 20 mA value Output Saturation levels Damping Line voltage filter Alarm LCD display (when installed) Tag
RTD, Pt 100 (=0.00385, 4-wire) 0 �C 100 �C Linear with temperature 3.9/20.5 mA 5 seconds 50 Hz High (21.75 mA) Engineering units and mA See Tagging.
Table 20: Standard FOUNDATION Fieldbus configuration Unless otherwise specified, the transmitter will be shipped as follows:
Sensor type: RTD, Pt 100 (=0.00385, 4-wire) Damping: 5 seconds Units of measurement: �C Line voltage filter: 50 Hz Software tag: See Tagging Function block tags: Resource block: Resource Transducer block: Transducer LCD display block: LCD display Analog input blocks: AI 1300, AI 1400 PID block: PID 1500 Alarm limits of AI 1300, AI 1400 HI-HI: Infinity HI: Infinity LO: Infinity LO-LO: Infinity
Local display (when installed): Engineering units of temperature
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Rosemount 644
Figure 14: Standard Block Configuration
March 2021
T1= sensor temperature Tb= terminal temperature
Final stations AI blocks are scheduled for one second. AI blocks are linked as shown in Figure 9. Table 21: Standard PROFIBUS PA configuration Unless specified, the transmitter will be shipped as follows:
Device address: 126 Sensor Type: RTD, Pt 100 (=0.00385, 4-wire) Damping: 5 seconds Units of measurement: �C Line voltage filter: 50 Hz Software tag: see Tagging. Alarm limits: HI-HI: Infinity HI: Infinity LO: - Infinity LO-LO: Infinity
Local display (when installed): Engineering units of temperature
Custom configuration Custom configurations are to be specified when ordering. This configuration must be the same for all sensors. The table lists the necessary requirements to specify a custom configuration:
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March 2021 Table 22: HART Protocol Option code C1: Factory Configuration Data (CDS required)
...M4 or M5 ...DC, A1, CN, or C8 ...DC C2:Transmitter � sensor matching
A1, CN, or C8: Alarm level configuration
Q4: Three-point calibration with certificate C4: Five-point calibration
Rosemount 644
Customization available Date: day/month/year Descriptor: 8 alphanumeric characters Message: 32 alphanumeric characters Hardware tag: 18 characters Software tag: 8 characters Sensor type and connection Measurement range and units Damping value Failure mode: High or Low Hot Backup: Mode and PV Sensor drift alert: Mode, limit and units
Display configuration: Select what will be shown on the LCD display.
Custom alarm and saturation levels: Choose custom High and Low alarm and saturation levels.
Security information: Write protection, HART Lock and LOI password
The transmitters are designed to accept Callendar-Van Dusen constants from a calibrated RTD. Using these constants, the transmitter generates a custom curve to match the sensor-specific curve. Specify a Rosemount RTD sensor model on the order with a special characterization curve (V or X8Q4 option). These constants will be programmed into the transmitter with this option.
A1: NAMUR Alarm and saturation levels, with high alarm configured
CN: NAMUR Alarm and saturation levels, with low alarm configured
C8: Low alarm (standard Rosemount alarm and saturation values)
Calibration certificate. Three-point calibration at 0, 50, and 100% with certificate.
Will include five-point calibration at 0, 25, 50, 75, and 100% analog and digital output points. Use with Calibration Certificate Q4.
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Rosemount 644
Table 22: HART Protocol (continued) Option code HR7: HART Revision configuration
Table 23: FOUNDATION Fieldbus Protocol Option code C1: Factory configuration data (CDS required) C2: Transmitter � sensor matching
C4: Five-point calibration Q4: Three-point calibration with certificate Table 24: PROFIBUS PA Option code C1: Factory Configuration Data (CDS required) C2: Transmitter � Sensor Matching
C4: Five-point calibration Q4: Three-point calibration with certificate
March 2021
Customization available Your Rosemount 644 head mount and field mount are
HART revision selectable. Order the HR7 code to configure your device to operate in HART Revision 7 mode. Your device is also configurable in the field. Refer to the Rosemount 644 Quick Start Guide or Reference Manual for more instructions. Long software tag: 32 characters
Requirements/specification
Date: day/month/year Descriptor: 16 alphanumeric characters Message: 32 alphanumeric characters
The transmitters are designed to accept Callendar-Van Dusen constants from a calibrated RTD. Using these constants, the transmitter generates a custom curve to match the sensorspecific curve. Specify a Series 65, 65, or 78 RTD sensor on the order with a special characterization curve (V or X8Q4 option). These constants will be programmed into the transmitter with this option.
Will include five-point calibration at 0, 25, 50, 75, and 100% analog and digital output points. Use with Calibration Certificate Q4.
Calibration certificate. Three-point calibration with certificate.
Requirements/specification
Date: day/month/year Descriptor: 16 alphanumeric characters Message: 32 alphanumeric characters
The transmitters are designed to accept Callendar-Van Dusen constants from a calibrated RTD. Using these constants, the transmitter generates a custom curve to match the sensorspecific curve. Specify a Series 65, or 78 RTD sensor on the order with a special characterization curve (V or X8Q4 option). These constants will be programmed into the transmitter with this option.
Will include five-point calibration at 0, 25, 50, 75, and 100% analog and digital output points. Use with Calibration Certificate Q4.
Calibration certificate. Three-point calibration with certificate.
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Rosemount 644
Specifications and reference data for Rosemount 644 HART (Device Revision 7 or Previous)
Functional specifications
Inputs User-selectable; sensor terminals rated to 42.4 Vdc. See Accuracy example (FOUNDATION Fieldbus and PROFIBUS PA devices).
Output Single two-wire device with either 4�20 mA/HART�, linear with temperature or input; or completely digital outputs with FOUNDATIONTM Fieldbus communication (ITK 5.01 compliant), or PROFIBUS� PA (compliant with profile 3.02).
Isolation Input/output isolation tested to 620 Vrms.
Local display options
LCD display
LCD display with LOI
An optional 11 digit, two-line integral LCD display operates with a floating or fixed decimal point. It displays engineering units (�F, �C, �R, K, Ohms and mV), mA, and percent of range. The display can be configured to alternate between selected display options. Display settings are pre-configured at the factory according to the standard transmitter configuration. They can be re-configured in the field using either HART, FOUNDATION Fieldbus, or PROFIBUS PA communications.
An optional 14-digit, two-line integral LCD display operates with a floating or fixed decimal point. The LOI includes all features and functionality available in the regular display with an added two-button configuration capability directly at the display interface. The LOI also has optional password protection for secure operations. The LOI is only available on the Rosemount 644 HART head mount and field mount transmitters.
For more information on the LOI configuration options or further functionality that the LOI offers, see the Rosemount 644 Temperature Transmitter Reference Manual.
Humidity limits 0�95 percent relative humidity
Update time 0.5 second per sensor
Accuracy (default configuration) PT 100 HART standard: �0.15 �C HART enhanced: �0.1 �C FOUNDATION Fieldbus: �0.15 �C PROFIBUS PA: �0.15 �C
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Rosemount 644
March 2021
Physical specifications
Material selection
Emerson provides a variety of Rosemount product with various product options and configurations including materials of construction that can be expected to perform well in a wide range of applications. The Rosemount product information presented is intended as a guide for the purchaser to make an appropriate selection for the application. It is the purchaser's sole responsibility to make a careful analysis of all process parameters (such as all chemical components, temperature, pressure, flow rate, abrasives, contaminants, etc.), when specifying product, materials, options and components for the particular application. Emerson is not in a position to evaluate or guarantee the compatibility of the process fluid or other process parameters with the product, options, configuration or materials of construction selected.
Conformance to specifications (�3 [Sigma])
Technology leadership, advanced manufacturing techniques, and statistical process control ensure specification conformance to at least �3.
Table 25: Electrical Connections
Rosemount model Head mount (HART�) Head mount (FOUNDATIONTM Fieldbus/PROFIBUS� PA) Field mount (HART) Rail mount (HART)
Power and sensor terminals Captivated screw terminals permanently fixed to terminal block Compression screw terminals permanently fixed to the terminal block Captivated screw terminals permanently fixed to the terminal block Compression screw permanently fixed to front panel
Table 26: Field Communicator Connections
Communication terminals Rosemount 644 head/field mount Rosemount 644 rail mount
Clips permanently fixed to terminal block Clips permanently fixed to front panel
Table 27: Materials of Construction
Electronics housing and terminal block
Rosemount 644 head/ field mount
GE polyphenylene oxide glass reinforced GFN -2 or -3
Rosemount 644 rail mount
Polycarbonate
Enclosure (Options J1, J2, J5, J6, R1, R2, D1, and D2)
Housing
Low-copper aluminum
Paint
Polyurethane
Cover O-ring
Buna-N
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
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Rosemount 644
Mounting
The Rosemount 644R attaches directly to a wall or a DIN rail. 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
See mounting kits for Rosemount 644H for the special hardware that is available to: Mount a Rosemount 644H to a DIN rail (see Dimensional drawings). Retrofit a new Rosemount 644H to replace an existing Rosemount 644H Transmitter in an existing threaded sensor
connection head (see Table 3).
Table 28: Weight
Code 644H 644H 644H 644R M5 M4 J1, J2 J1, J2 J3, J4 J3, J4 J5, J6 J5, J6 J7, J8 J7, J8 R1, R2 R1, R2 R3, R4 R3, R4 D1, D2
Options HART, head mount transmitter FOUNDATION Fieldbus, head mount transmitter PROFIBUS PA, head mount transmitter HART, rail mount transmitter LCD display LCD display with local operator interface Universal head, 3-conduits, standard cover Universal head, 3-conduits, meter cover Cast SST universal head, 3-conduits, standard cover Cast SST universal head, 3-conduits, meter cover Aluminum 2-conduits, universal head, standard cover Aluminum 2-conduits, universal head, meter cover Cast SST universal head 2-conduits, standard, cover Cast SST universal head 2-conduits, meter cover Aluminum connection head, standard cover Aluminum connection head, meter cover Cast SST connection head, standard cover Cast SST connection head, meter cover HART, field mount transmitter, aluminum housing, meter cover, standard cover
Weight 78 g (2.75 oz) 92 g (3.25 oz) 92 g (3.25 oz) 174 g (6.14 oz) 34 g (1.2 oz) 34 g (1.2 oz) 718 g (25.33 oz) 826 g (29.14 oz) 2073 g (73.12 oz) 2148 g (75.77 oz) 520g (18.43 oz) 604 g (21.27 oz) 1673 g (59.0 oz) 1835 g (64.73 oz) 523 g (18.45 oz) 618 g (21.79 oz) 1615 g (56.97 oz) 1747 g (61.62 oz) 1128 g (39.79 oz)
Table 29: Weight (stainless steel housing for biotechnology, pharmaceutical industries, and sanitary applications)
Option codes S1, S2, S3, S4
Standard cover 840 g (27 oz)
Meter cover 995 g (32 oz)
Enclosure ratings (Rosemount 644H/F) All available enclosures are Type 4X, IP66, and IP68.
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Rosemount 644
Sanitary housing surface Surface finish is polished to 32 RMA. Laser etched product marking on housing and standard covers.
March 2021
Performance specifications
Electromagnetic Compatibility (EMC)
Meets all industrial environment requirements of EN61326 and NAMUR NE-21. Maximum deviation <1% span during EMC disturbance.
Note During surge event, device may exceed maximum EMC deviation limit or reset; however, device will self-recover and return to normal operation within specified start-up time.
Power supply effect Less than �0.005 percent of span per volt
Stability RTDs and thermocouples have a stability of �0.15 percent of output reading or 0.15 �C (whichever is greater) for 24 months. When ordered with the P8 option code: RTDs: �0.25 percent of reading or 0.25 �C, whichever is greater, for five years Thermocouples: �0.5 percent of reading or 0.5 �C, whichever is greater, for five years
Self calibration
The analog-to-digital measurement circuitry automatically self-calibrates for each temperature update by comparing the dynamic measurement to extremely stable and accurate internal reference elements.
Table 30: Vibration effect
The Rosemount 644 HART� head mount and field mount are tested to the following specifications with no effect on performance per IEC 60770-1, 2010:
Frequency 10�60 Hz 60�1000 Hz
Vibration 0.35 mm displacement 5g (50 m/s2) peak acceleration
The Rosemount 644 Fieldbus and PROFIBUS are tested to the following specifications with no effect on performance per IEC 60770-1: 1999:
Frequency 10�60 Hz 60�2000 Hz
Vibration 0.21 mm displacement 3 g peak acceleration
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Rosemount 644
Table 31: Rosemount 644 Sensor Connections Diagrams Emerson provides 4-wire sensors for all single element RTDs. You can use these RTDs in 3-wire configurations by leaving the unneeded leads disconnected and insulated with electrical tape.
HART head mount
�+ +�
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Rosemount 644
Table 31: Rosemount 644 Sensor Connections Diagrams (continued) HART rail mount Fieldbus PROFIBUS
March 2021
+_
1 234 1 2 3 4
2-wire
3-wire
RTD and RTD and *
12 3 4
4-wire RTD and
12 34
T/C and mV
HART field mount
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March 2021
Rosemount 644
4�20 mA/HART specifications
Power supply External power supply required. Transmitters operate on 12.0 to 42.4 Vdc transmitter terminal voltage (with 250 ohm load, 18.1 Vdc power supply voltage is required). Transmitter power terminals rated to 42.4 Vdc. Table 32: Load limitations
Maximum Load = 40.8 � (Supply Voltage - 12.0) (1)
Load (Ohms)
1240 1100 1000
750
4-20 mA dc
500
250
0
10
18.1 30
12.0 Min
HART and Analog operating range
Analog only operating range 42.4
(1) Without transient protection(optional).
Note HART Communication requires a loop resistance between 250 and 1100 Ohms. Do not communicate with the transmitter when power is below 12 Vdc at the transmitter terminals.
Table 33: Temperature limits Descriptions With LCD display (2)
Without LCD display
Operating Limit(1)
�40 to 185 �F �40 to 85 �C
�40 to 185 �F �40 to 85 �C
Storage Limit (1)
�50 to 185 �F �45 to 85 �C
�60 to 250 �F �50 to 120 �C
(1) The lower operating and storage temperature limit of a transmitter with option code BR6 is �76 �F (�60 �C). (2) LCD display may not be readable and display updates will be slower at temperatures below �22 �F (�30 �C).
Hardware and software failure mode
The Rosemount 644 Transmitter features software driven alarm diagnostics and an independent circuit, which is designed to provide backup alarm output if the microprocessor software fails. The alarm direction (HI/LO) is user-selectable using the failure mode switch. If failure occurs, the position of the switch determines the direction in which the output is driven (HI or LO). The switch feeds into the digital-to-analog (D/A) converter, which drives the proper alarm output even if the microprocessor fails. The values at which the transmitter software drives its output in failure mode depends on whether it is configured to standard, custom, or NAMUR-compliant (NAMUR recommendation NE 43, June 1997) operation. Table 34 shows the configuration alarm ranges.
Custom alarm and saturation level Table 34: Available Alarm Range Measured in mA
Linear output Fail high Fail low
Standard 3.9 I (1) � 20.5 21.75 I 23 3.5 I 3.75
NAMUR- NE 43 compliant 3.8 I 20.5 21.5 I 23 3.5 I 3.6
(1) I = Process Variable (current output).
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Custom factory configuration of alarm and saturation level is available with option code C1 for valid values. These values can also be configured in the field using a field communicator.
Turn-on time Performance within specifications in less than six seconds after power is applied, when damping value is set to zero seconds.
Transient protection The Rosemount 470 Transient Protector prevents damage from transients induced by lightning, welding, or heavy electrical equipment. For more information, refer to the Rosemount 470 Transient Protector Product Data Sheet.
Accuracy For complete accuracy tables by sensor type, see Table 17.
Configuration For standard and custom configuration information, see Configuration.
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Product certifications
Rev 4.5
Rosemount 644
European Directive Information
A copy of the EU Declaration of Conformity can be found at the end of the Quick Start Guide. The most recent revision of the EU Declaration of Conformity can be found at Emerson.com/Rosemount.
Ordinary Location Certification
As standard, the transmitter has been examined and tested to determine that the design meets the basic electrical, mechanical, and fire protection requirements by a nationally recognized test laboratory (NRTL) as accredited by the Federal Occupational Safety and Health Administration (OSHA).
North America
The US National Electrical Code� (NEC) and the Canadian Electrical Code (CEC) permit the use of Division marked equipment in Zones and Zone marked equipment in Divisions. The markings must be suitable for the area classification, gas, and temperature class. This information is clearly defined in the respective codes.
USA
E5 USA Explosionproof, Non-Incendive, Dust-Ignitionproof
Certificate: 1091070 Standards: FM Class 3600: 2011, FM Class 3615: 2006, FM Class 3616: 2011, ANSI/ISA 60079-0: Ed. 5, UL Std. No. 50E, CAN/CSA
C22.2 No. 60529-05 Markings: XP CL I, DIV 1, GP B, C, D; DIP CL II / III, DIV 1, GP E, F, G; T5(-50 �C Ta +85 �C); Type 4X; IP66; See I5 description for
Non-Incendive markings.
I5 USA Intrinsic Safety and Non-Incendive
Certificate: 1091070 Standards: FM Class 3600: 2011, FM Class 3610: 2010, FM Class 3611: 2004, ANSI/ISA 60079-0: Ed. 5, UL Std. No. 60079-11: Ed.
6, UL Std. No. 50E, CAN/CSA C22.2 No. 60529-05 Markings: IS CL I/II/III, DIV I, GP A, B, C, D, E, F, G; CL I ZONE 0 AEx ia IIC; NI CL I, DIV 2, GP A, B, C, D
Special Conditions for Safe Use (X): 1. When no enclosure option is selected, the Rosemount 644 Temperature Transmitter shall be installed in a final enclosure meeting type of protection IP20 and meeting the requirements of ANSI/ISA 61010-1 and ANSI/ISA 60079-0. 2. Option code K5 is only applicable with a Rosemount enclosure. However, K5 is not valid with enclosure options S1, S2, S3, or S4. 3. An enclosure option must be selected to maintain a Type 4X rating.
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4. The Rosemount 644 Transmitter optional housings may contain aluminum and is considered a potential risk of ignition by impact or friction. Care must be taken during installation and use to prevent impact and friction.
Canada
I6 Canada Intrinsic Safety and Division 2
Certificate: 1091070 Standards: CAN/CSA C22.2 No. 0-10, CSA Std C22.2 No. 25-1966, CAN/CSA-C22.2 No. 94-M91, CSA Std C22.2 No. 142-M1987,
CAN/CSA-C22.2 No. 157-92, CSA Std C22.2 No. 213-M1987, C22.2 No 60529-05, CAN/CSA C22.2 No. 60079-0:11, CAN/CSA C22.2 No. 60079-11:14, CAN/CSA Std. No. 61010-1-12 Markings: [HART] IS CL I GP A, B, C, D T4/T6; CL I, DIV 2, GP A, B, C, D [Fieldbus/PROFIBUS] IS CL I GP A, B, C, D T4; CL I, ZONE 0 IIC; CL I, DIV 2, GP A, B, C, D
K6 Canada Explosionproof, Dust-Ignitionproof, Intrinsic Safety and Division 2
Certificate: 1091070 Standards: CAN/CSA C22.2 No. 0-10, CSA Std C22.2 No. 25-1966, CSA Std. C22.2 No. 30-M1986, CAN/CSA-C22.2 No. 94-M91,
CSA Std C22.2 No. 142-M1987, CAN/CSA-C22.2 No. 157-92, CSA Std C22.2 No. 213-M1987, C22.2 No 60529-05, CAN/CSA C22.2 No. 60079-0:11, CAN/CSA C22.2 No. 60079-11:14, CAN/CSA Std. No. 61010-1-12 Markings: CL I/II/III, DIV 1, GP B, C, D, E, F, G See I6 description for Intrinsic Safety and Division 2 markings
Europe
E1 ATEX Flameproof
Certificate: FM12ATEX0065X
Standards:
EN 60079-0: 2012+A11:2013, EN 60079-1: 2014, EN 60529:1991 +A1:2000+A2:2013
Markings:
II 2 G Ex db IIC T6...T1 Gb, T6(�50 �C Ta +40 �C), T5...T1(�50 �C Ta +60 �C)
See Table 35 for process temperatures.
Special Conditions for Safe Use (X): 1. See certificate for ambient temperature range.
2. The non-metallic label may store an electrostatic charge and become a source of ignition in Group III environments.
3. Guard the LCD display cover against impact energies greater than 4 joules.
4. Flameproof joints are not intended for repair.
5. A suitable certified Ex d or Ex tb enclosure is required to be connected to temperature probes with Enclosure option "N".
6. Care shall be taken by the end user to ensure that the external surface temperature on the equipment and the neck of DIN Style Sensor probe does not exceed 130 �C.
7. Non-Standard Paint options may cause risk from electrostatic discharge. Avoid installations that cause electrostatic build-up on painted surfaces, and only clean the painted surfaces with a damp cloth. If paint is ordered through a special option code, contact the manufacturer for more information.
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I1 ATEX Intrinsic Safety
Certificate:
Standards: Markings:
[Headmount HART]: Baseefa12ATEX0101X [Headmount Fieldbus/PROFIBUS]: Baseefa03ATEX0499X [Railmount HART]: BAS00ATEX1033X
EN IEC 60079-0: 2018, EN 60079-11: 2012
[HART]: II 1 G Ex ia IIC T6...T4 Ga [Fieldbus/PROFIBUS]: II 1 G Ex ia IIC T4 Ga
See Table 39 for entity parameters and temperature classifications.
Special Conditions for Safe Use (X):
1. The equipment must be installed in an enclosure which affords it a degree of protection of at least IP20 in accordance with the requirements of IEC 60529. Non-metallic enclosures must have a surface resistance of less than 1G ; light alloy or zirconium enclosures must be protected from impact and friction when installed in a Zone 0 environment.
2. When fitted with the Transient Protector Assembly, the equipment is not capable of withstanding the 500 V test as defined in Clause 6.3.13 of EN 60079-11:2012. This must be taken into account during installation.
N1 ATEX Type n � with enclosure
Certificate: Standards: Markings:
BAS00ATEX3145 EN 60079-0: 2012+A11: 2013, EN 60079-15: 2010
II 3 G Ex nA IIC T5 Gc (�40 �C Ta +70 �C)
NC ATEX Type n � without enclosure
Certificate:
Standards: Markings:
[Headmount Fieldbus/PROFIBUS, Railmount HART]: Baseefa13ATEX0093X [Headmount HART]: Baseefa12ATEX0102U
EN IEC 60079-0: 2018, EN 60079-15: 2010
[Headmount Fieldbus/PROFIBUS, Railmount HART]: II 3 G Ex nA IIC T5 Gc (�40 �C Ta +70 �C) [Headmount HART]: II 3 G Ex nA IIC T6...T5 Gc; T6(�60 �C Ta +40 �C); T5(�60 �C Ta +85 �C)
Special Conditions for Safe Use (X):
1. The Rosemount 644 Temperature Transmitter must be installed in a suitably certified enclosure such that it is afforded a degree of protection of at least IP54 in accordance with IEC 60529 and EN 60079-15.
2. When fitted with the Transient Protector Assembly, the equipment is not capable of withstanding the 500 V test as defined in Clause 6.5 of EN 60079-15: 2010. This must be taken into account during installation.
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ND ATEX Dust
Certificate: Standards: Markings:
FM12ATEX0065X
EN 60079-0: 2012+A11:2013, EN 60079-31: 2014, EN 60529:1991 +A1:2000
II 2 D Ex tb IIIC T130 �C Db, (�40 �C Ta +70 �C); IP66 See Table 35 for process temperatures.
Special Conditions for Safe Use (X): 1. See certificate for ambient temperature range.
2. The non-metallic label may store an electrostatic charge and become a source of ignition in Group III environments.
3. Guard the LCD display cover against impact energies greater than 4 joules.
4. Flameproof joints are not intended for repair.
5. A suitable certified Ex d or Ex tb enclosure is required to be connected to temperature probes with Enclosure option "N".
6. Care shall be taken by the end user to ensure that the external surface temperature on the equipment and the neck of DIN Style Sensor probe does not exceed 130 �C.
7. Non-Standard Paint options may cause risk from electrostatic discharge. Avoid installations that cause electrostatic build-up on painted surfaces, and only clean the painted surfaces with a damp cloth. If paint is ordered through a special option code, contact the manufacturer for more information
International
E7 IECEx Flameproof
Certificate:
IECEx FMG 12.0022X
Standards:
IEC 60079-0: 2011, IEC 60079-1: 2014
Markings:
Ex db IIC T6...T1 Gb, T6(�50 �C Ta +40 �C), T5...T1(�50 �C Ta +60 �C)
See Table 35 for process temperatures.
Special Conditions for Safe Use (X): 1. See certificate for ambient temperature range.
2. The non-metallic label may store an electrostatic charge and become a source of ignition in Group III environments.
3. Guard the LCD display cover against impact energies greater than 4 joules.
4. Flameproof joints are not intended for repair.
5. A suitable certified Ex d or Ex tb enclosure is required to be connected to temperature probes with Enclosure option "N".
6. Care shall be taken by the end user to ensure that the external surface temperature on the equipment and the neck of DIN Style Sensor probe does not exceed 130 �C.
7. Non-Standard Paint options may cause risk from electrostatic discharge. Avoid installations that cause electrostatic build-up on painted surfaces, and only clean the painted surfaces with a damp cloth. If paint is ordered through a special option code, contact the manufacturer for more information.
I7 IECEx Intrinsic Safety
Certificate:
[Headmount HART]: IECEx BAS 12.0069X [Headmount Fieldbus/PROFIBUS, Railmount HART]: IECEx BAS 07.0053X
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Rosemount 644
Standards: Markings:
IEC 60079-0: 2017, IEC 60079-11: 2011 Ex ia IIC T6...T4 Ga
See Table 39 for Entity Parameters and Temperature Classifications.
Special Conditions for Safe Use (X):
1. The equipment must be installed in an enclosure which affords it a degree of protection of at least IP20 in accordance with the requirements of IEC 60529. Non-metallic enclosures must have a surface resistance of less than 1G ; light alloy or zirconium enclosures must be protected from impact and friction when installed in a Zone 0 environment.
2. When fitted with the Transient Protector Assembly, the equipment is not capable of withstanding the 500 V test as defined in Clause 6.3.13 of IEC 60079-11:2011. This must be taken into account during installation.
N7 IECEx Type n � with enclosure
Certificate: Standards: Markings:
IECEx BAS 07.0055 IEC 60079-0: 2011, IEC 60079-15: 2010 Ex nA IIC T5 Gc (�40 �C Ta +70 �C)
NG IECEx Type n � without enclosure
Certificate:
Standards: Markings:
[Headmount Fieldbus/PROFIBUS, Railmount HART]: IECEx BAS 13.0053X [Headmount HART]: IECEx BAS 12.0070U
IEC 60079-0: 2017, IEC 60079-15: 2010
[Headmount Fieldbus/PROFIBUS, Railmount HART]: Ex nA IIC T5 Gc (�40 �C Ta +70 �C) [Headmount HART]: Ex nA IIC T6...T5 Gc; T6(�60 �C Ta +40 �C); T5(�60 �C Ta +85 �C)
Special Conditions for Safe Use (X):
1. The Rosemount 644 Temperature Transmitter must be installed in a suitably certified enclosure such that it is afforded a degree of protection of at least IP54 in accordance with IEC 60529 and IEC 60079-15.
2. When fitted with the Transient Protector Assembly, the equipment is not capable of withstanding the 500 V test. This must be taken into account during installation.
NK IECEx Dust
Certificate:
IECEx FMG 12.0022X
Standards:
IEC 60079-0: 2011, IEC 60079-31: 2013
Markings:
Ex tb IIIC T130 �C Db, (�40 �C Ta +70 �C); IP66
See Table 35 for process temperatures
Special Conditions for Safe Use (X): 1. See certificate for ambient temperature range. 2. The non-metallic label may store an electrostatic charge and become a source of ignition in Group III environments. 3. Guard the LCD display cover against impact energies greater than 4 joules. 4. Flameproof joints are not intended for repair. 5. A suitable certified Ex d or Ex tb enclosure is required to be connected to temperature probes with Enclosure option "N".
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6. Care shall be taken by the end user to ensure that the external surface temperature on the equipment and the neck of DIN Style Sensor probe does not exceed 130 �C.
7. Non-Standard Paint options may cause risk from electrostatic discharge. Avoid installations that cause electrostatic build-up on painted surfaces, and only clean the painted surfaces with a damp cloth. If paint is ordered through a special option code, contact the manufacturer for more information.
Brazil
E2 INMETRO Flameproof and Dust
Certificate: Standards: Markings:
UL-BR 13.0535X
ABNT NBR IEC 60079-0:2013, ABNT NBR IEC 60079-1:2016, ABNT NBR IEC 60079-31:2014
Ex db IIC T6...T1 Gb; T6...T1: (�50 �C Ta +40 �C), T5...T1: (�50 �C Ta +60 �C) Ex tb IIIC T130 �C; IP66; (�40 �C Ta +70 �C)
Special Conditions for Safe Use (X): 1. See product description for ambient temperature limits and process temperature limits. 2. The non-metallic label may store an electrostatic charge and become a source of ignition in Group III environments. 3. Guard the LCD display cover against impact energies greater than 4 joules. 4. Consult the manufacturer if dimensional information on the flameproof joints is necessary.
I2 INMETRO Intrinsic Safety
Certificate: [Fieldbus]: UL-BR 15.0264X [HART]: UL-BR 14.0670X
Standards: ABNT NBR IEC 60079-0:2013, ABNT NBR IEC 60079-11:2013
Markings:
[Fieldbus]: Ex ia IIC T* Ga (�60 �C Ta +** �C) [HART]: Ex ia IIC T* Ga (�60 �C Ta +** �C)
See Table 39 for Entity Parameters and Temperature Classifications.
Special Conditions for Safe Use (X):
1. The apparatus must be installed in an enclosure which affords it a degree of protection of at least IP20.
2. Non-metallic enclosures must have a surface resistance of less than 1 G ; light alloy or zirconium enclosures must be protected from impact and friction when installed in a zone 0 environment.
3. When fitted with the Transient Protector Assembly, the equipment is not capable of withstanding the 500 V test as defined on ABNT NBR IEC 60079-11. This must be taken into account during installation.
4. The ingress protection degree IP66 is provided only for the Rosemount 644 Field Mount Assembly which is formed by installing an Enhanced Model 644 Temperature Transmitter within a dual-compartment enclosure Plantweb enclosure.
China
E3 China Flameproof
Certificate: Standards:
GYJ16.1192X GB3836.1-2010, GB3836.2-2010, GB12476.1-2013, GB12476.5-2013
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Markings:
Ex d IIC T6...T1; Ex tD A21 T130 �C; IP66
"X"
1. 2. 3.
Ex d IIC T6~T1 T6T1
Gb
T5T1
Ex Td A21 IP66 N/A T130
�50 �C Ta +40 �C �50 �C Ta +60 �C �40 �C Ta +70 �C
4. 5. Ex dC, Ex tD A21 IP66
6. ""
"" 7. 8. GB3836.13-2013" 13
"GB3836.15-2000" 15 " GB3836.16-2006" 16 " GB50257-2014" " GB15577-2007""GB12476.2-2010 " 2 "
I3 China Intrinsic Safety
Certificate: Standards: Markings:
GYJ16.1191X GB3836.1-2010, GB3836.4-2010, GB3836.20-2010 Ex ia IIC T4~T6 Ga
"X"
1. GB/T4208-2017 IP20 GB3836.1-2010 8 GB3836.1-2010 7.4
2. 1G 3. Transmitter Type FD 0 4. T1 GB3836.4-2010 6.3.12 500V
1. Options Enhanced Performance
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A
FW
W 0.67 0.67 1 1 1.3 5.32
Options Enhanced Performance W 0.67 0.67 0.80 0.80
T6 T5 T5 T4
T6 T5 T5 T4 T4 T4
�60 �C Ta +40 �C �60 �C Ta +50 �C �60 �C Ta +40 �C �60 �C Ta +80 �C �50 �C Ta +60 �C �50 �C Ta +60 �C
�60 �C Ta +40 �C �60 �C Ta +50 �C �60 �C Ta +40 �C �60 �C Ta +80 �C
2. Options Enhanced Performance (+ , -)
UiV
A
30
FW
30
F W(FISCO)
17.5
IimA
200 300 380
PiW
0.67/1 1.3 5.32
Ci (nF) 10
Li (mH) 0
2.1
0
2.1
0
1,2,3,4
A F,W
Uo (V) 13.6 13.9
Io (mA)
Po (W)
Co (nF)
Lo (mH)
80
0.08
75
0
23
0.079
7.7
0
Options Enhanced Performance (+ , -)
Ui (V)
Ii (mA)
30
150 (Ta +80 �C)
170 (Ta +70 �C)
190 (Ta +60 �C)
Pi (W)
0.67/0.8
Ci (nF)
Li (mH)
3.3
0
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1,2,3,4
Uo (V)
Io (mA)
13.6
80
Po (W)
0.08
IIC IIB IIA
Co (nF) 0.816
Lo (mH) 5.79
5.196
23.4
18.596
48.06
GB3836.19-2010 FISCO
3.
4. 5. GB3836.13-2013" 13
"GB/T3836.15-2017" 15 "GB/T3836.16-2017" 16 "GB/T3836.18-2017" 18 " GB50257-2014""
N3 China Type n
Certificate: Standards: Markings:
GYJ20.1544 GB3836.1-2010, GB3836.8-2014 Ex nA IIC T5/T6 Gc
1. Options Enhanced Performance
T5
�40 �C Ta +70 �C
Options Enhanced Performance
T6 T5
�60 �C Ta +40 �C �60 �C Ta +85 �C
2. 45Vdc 3. Ex e IIC Gb
IP54 GB/T4208-2017 4. 5. GB3836.13-2013" 13 "GB/T3836.15-2017" 15 "GB/T3836.16-2017" 16 " GB50257-2014" "
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EAC - Belarus, Kazakhstan, Russia
EM Technical Regulation Customs Union TR CU 012/2011 (EAC) Flameproof
Standards:
GOST 31610.0-2014, GOST IEC 60079-1-2011
Markings:
1Ex d IIC T6...T1 Gb X, T6 (-55 �C Ta +40 �C), T5...T1(-55 �C Ta +60 �C);
See Table 35 for process temperatures.
Special Conditions for Safe Use (X):
1. See certificate TR CU 012/2011 for ambient temperature range.
2. Guard the LCD display cover against impact energies greater than 4 joules.
3. Flameproof joints are not intended for repair.
4. Non-standard paint options may cause risk from electrostatic discharge. Avoid installations that cause electrostatic build-up on painted surfaces, and only clean the painted surfaces with a damp cloth. If paint is ordered through a special code, contact the manufacturer for more information.
IM Technical Regulation Customs Union TR CU 012/2011 (EAC) Intrinsic Safety
Standards: Markings:
GOST 31610.0-2014, GOST 31610.11-2014 [HART]: 0Ex ia IIC T6...T4 Ga X; [Fieldbus, FISCO, PROFIBUS PA]: 0Ex ia IIC T4 Ga X
See Table 39 for Entity Parameters and Temperature Classifications.
Special Conditions for Safe Use (X):
1. The equipment must be installed in an enclosure which affords it a degree of protection of at least IP20 in accordance with the requirements of GOST 14254-96. Non-metallic enclosures must have a surface resistance of less than 1 ; light alloy or zirconium enclosures must be protected from impact and friction when installed in a Zone 0 environment.
2. When fitted with the Transient Protector Assembly, the equipment is not capable of withstanding the 500 V test as defined in GOST 31610.11-2014. This must be taken into account during installation.
3. See certificate TR CU 012/2011 for ambient temperature range.
KM Technical Regulation Customs Union TR CU 012/2011 (EAC) Flameproof, Intrinsic Safety, and Dust-Ignitionproof
Standards: GOST 31610.0-2014, GOST IEC 60079-1-2011, GOST 31610.11-2014, GOST R IEC 60079-31-2010 Markings: Ex tb IIIC T130 �C Db X (-55 �C Ta +70 �C); IP66 See Table 35 for process temperatures. See EM for Flameproof Markings and see IM for Intrinsic Safety Markings.
Special Conditions for Safe Use (X): 1. The non-metallic label may store an electrostatic charge and become a source of ignition in Group III environments. Label must be cleaned by the damp cloth with antistatic to avoid store an electrostatic discharge. 2. Guard the LCD display cover against impact energies greater than 4 joules.
See EM for Flameproof Specific Conditions of Use and see IM for Intrinsic Safety Specific Conditions of Use.
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Japan
E4 Japan Flameproof
Certificate: Markings:
CML 17JPN1316X Ex d IIC T6...T1 Gb; T6 (-50 �C < Ta < +40 �C); T5...T1(-50 �C Ta 60 �C)
Special Conditions for Safe Use: 1. Flameproof joints are not intended for repair. 2. Models with LCD display cover shall have the display cover protected from impact energies greater than 4 Joules. 3. For Models 65 and 185, the user shall ensure the external surface temperature of the equipment and the neck of the DIN Style probe does not exceed 130 �C. 4. Non-standard paint options may cause risk from electrostatic discharge. 5. The wiring used shall be suitable for temperatures over 80 �C.
I4 Japan Intrinsic Safety
Certificate: Standards: Markings:
CML 18JPN2118X JNIOSH-TR-46-1, JNIOSH-TR-46-6 [Fieldbus] Ex ia IIC T4 Ga (�60 �C Ta +60 �C);
Special Conditions for Safe Use (X):
1. The apparatus must be installed in an enclosure which affords it a degree of protection of at least IP20.
2. Non-metallic enclosures must have a surface resistance of less than 1 G ; light alloy or zirconium enclosures must be protected from impact and friction when installed in a zone 0 environment.
Korea
EP Korea Flameproof and Dust-Ignitionproof
Certificate: Markings:
13-KB4BO-0559X Ex d IIC T6... T1; Ex tb IIIC T130 �C
Special Condition for Safe Use (X): See certificate for special conditions for safe use.
IP Korea Intrnsic Safety
Certificate: Markings:
Special Condition for Safe Use (X): See certificate for special conditions for safe use.
13-KB4BO-0531X Ex ia IIC T6...T4
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Combinations
K1
Combination of E1, I1, N1, and ND
K2
Combination of E2 and I2
K5
Combination of E5 and I5
K7
Combination of E7, I7, N7, and NK
KA
Combination of K6, E1, and I1
KB
Combination of K5 and K6
KC
Combination of I5 and I6
KD
Combination of E5, I5, K6, E1, and I1
KP
Combination of EP and IP
March 2021
Additional certifications
SBS American Bureau of Shipping (ABS) Type Approval
Certificate:
16-HS1553094-PDA
SBV Bureau Veritas (BV) Type Approval
Certificate: Requirements: Application:
26325 BV Bureau Veritas Rules for the Classification of Steel Ships Class notations: AUT-UMS, AUT-CCS, AUT-PORT and AUT-IMS
SDN Det Norske Veritas (DNV) Type Approval
Certificate: TAA00000K8 Application: Location Classes:Temperature: D; Humidity: B; Vibration: A; EMC: B; Enclosure B/IP66: A, C/IP66: SST
SLL Lloyds Register (LR) Type Approval
Certificate: Application:
11/60002 For use in environmental categories ENV1, ENV2, ENV3, and ENV5.
Specification tables
Table 35: Process Temperature Limits
Sensor only (no transmitter installed)
Process temperature [�C]
Gas
T6
T5
Any extension length 85 �C (185 �F ) 100 �C (212 �F)
T4
135 �C (275 �F)
T3
200 �C (392 �F)
T2
300 �C (572 �F)
T1
450 �C (842 �F)
Dust
T130 �C
130 �C (266 �F)
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Table 36: Process Temperature Limits without LCD Display Cover
Transmitter
No extension 3-in. extension 6-in. extension
Process temperature [�C]
Gas
T6
T5
T4
131 �F (55 �C) 158 �F (70 �C) 212 �F (100 �C)
131 �F (55 �C) 158 �F (70 �C) 230 �F (110 �C)
140 �F (60 �C) 158 �F (70 �C) 248 �F (120 �C)
T3
338 �F (170 �C)
374 �F (190 �C)
392 �F (200 �C)
9-in. extension
149 �F (65 �C) 167 �F (75 �C) 266 �F (130 392 �F (200
�C)
�C)
T2
536 �F (280 �C)
572 �F (300 �C)
572 �F (300 �C)
572 �F (300 �C)
T1
824 �F (440 �C)
842 �F (450 �C)
842 �F (450 �C)
842 �F (450 �C)
Dust
T130 �C
212 �F (100 �C)
230 �F (110 �C)
230 �F (110 �C)
248 �F (120 �C)
Adhering to the process temperature limitation of Table 37 will ensure that the service temperature limitations of the LCD cover are not exceeded. Process temperatures may exceed the limits defined in Table 37 if the Temperature of the LCD cover is verified to not exceed the service temperatures in Table 38 and the process temperatures do not exceed the values specified in Table 36.
Table 37: Process Temperature Limits with LCD Display Cover
Transmitter with LCD display cover
No extension 3-in. extension 6-in. extension 9-in. extension
Process temperature [�C]
Gas
T6
T5
131 �F (55 �C)
158 �F (70 �C)
131 �F (55 �C)
158 �F (70 �C)
140 �F (60 �C)
158 �F (70 �C)
149 �F (65 �C)
167 �F (75 �C )
T4...T1 203 �F (95 �C) 212 �F (100 �C) 212 �F (100 �C) 230 �F (110 �C)
Dust T130 �C 203 �F (95 �C) 212 �F (100 �C) 212 �F (100 �C) 110 �C (230 �F)
Table 38: Service Temperature Limits
Transmitter with LCD display cover
No extension
Service temperature [�C]
Gas
T6
T5
149 �F (65 �C)
167 �F (75 �C)
T4...T1 203 �F (95 �C)
Dust T130 �C 203 �F (95 �C)
Table 39: Entity Parameters
Ui (V) Ii (mA)
Fieldbus/PROFIBUS [FISCO] 30 [17.5] 300 [380]
HART
30 200
HART (Enhanced)
30 150 for Ta 80 �C 170 for Ta 70 �C 190 for Ta 60 �C
Emerson.com/Rosemount
67
Rosemount 644
March 2021
Table 39: Entity Parameters (continued)
Fieldbus/PROFIBUS [FISCO]
Pi (W)
1.3 at T4 (�50 �C Ta +60 �C) [5.32 at T4 (�50 �C Ta +60 �C)]
Ci (nF)
2.1
Li (mH)
0
HART
.67 at T6(�60 �C Ta +40 �C) .67 at T5(�60 �C Ta +50 �C) 1.0 at T5(�60 �C Ta +40 �C) 1.0 at T4(�60 �C Ta +80 �C) 10 0
HART (Enhanced)
.67 at T6(�60 �C Ta +40 �C) .67 at T5(�60 �C Ta +50 �C) .80 at T5(�60 �C Ta +40 �C) .80 at T4(�60 �C Ta +80 �C) 3.3 0
68
Emerson.com/Rosemount
March 2021
Rosemount 644
Emerson.com/Rosemount
69
Rosemount 644
March 2021
70
Emerson.com/Rosemount
March 2021
Rosemount 644
Emerson.com/Rosemount
71
00813-0100-4728 Rev. UG
March 2021
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