Emerson Rosemount 644h User manual

Quick Start Guide
00825-0100-4829, Rev EB
April 2019
Rosemount™ 644H Temperature
Transmitters
with FOUNDATION™Fieldbus Protocol

Safety messages
NOTICE
This guide provides basic guidelines for installing the Rosemount™ 644 Temperature Transmitter. It
does not provide instructions for detailed configuration, diagnostics, maintenance, service,
troubleshooting, or installation. Refer to the Rosemount 644 Reference Manual for more instruction.
The manual and this guide are also available electronically on Emerson.com/Rosemount.
Important
Read this manual before working with the product. For personal and system safety, and for optimum
product performance, make sure to thoroughly understand the contents before installing, using, or
maintaining this product. The United States has two toll-free assistance numbers and one international
number.
Customer Central: 1-800-999-9307 (7:00 a.m. to 7:00 p.m. Central Standard Time)
National Response Center: 1-800-654-7768 (24 hours a day). Equipment service needs
International: 1-(952)-906-8888
WARNING
Follow instructions
Failure to follow these installation guidelines could result in death or serious injury.
Ensure only qualified personnel perform the installation.
WARNING
Explosions
Explosions could result in death or serious injury.
Installation of the transmitters in a hazardous environment must be in accordance with the
appropriate local, national, and international standards, codes, and practices. Please review the
Product Certifications section for any restrictions associated with a safe installation.
Do not remove the connection head cover in explosive atmospheres when the circuit is live.
Before connecting a handheld communicator in an explosive atmosphere, ensure the instruments
are installed in accordance with intrinsically safe or non-incendive field wiring practices.Verify the
operating atmosphere of the transmitter is consistent with the appropriate hazardous locations
certifications.
All connection head covers must be fully engaged to meet explosion-proof requirements.
WARNING
Process leaks
Process leaks could result in death or serious injury.
Do not remove the thermowell while in operation.
Install and tighten thermowells and sensors before applying pressure.
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WARNING
Electrical shock
Electrical shock could cause death or serious injury.
Avoid contact with the leads and terminals. High voltage that may be present on leads can cause
electrical shock.
Contents
Mount the transmitter................................... 5
Wire and apply power.................................... 8
Ground the transmitter................................11
Verify tagging.............................................. 15
Verify transmitter configuration...................16
Product certifications...................................18
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1 Mount the transmitter
Mount the transmitter at a high point in the conduit run to prevent moisture
from draining into the transmitter housing.
1.1 Install connection head
Head mount transmitter with DIN plate style sensor.
Procedure
1. Attach the thermowell to the pipe or process container wall. Install
and tighten the thermowell before applying process pressure.
2. Assemble the transmitter to the sensor. Push the transmitter
mounting screws through the sensor mounting plate and insert the
snap rings (optional) into the transmitter mounting screw groove.
3. Wire the sensor to the transmitter.
4. Insert the transmitter-sensor assembly into the connection head.
Thread the transmitter mounting screws into the connection head
mounting holes. Assemble the extension to the connection head.
Insert the assembly into the thermowell.
5. Slip the shielded cable though the cable gland.
6. Attach the cable gland into the shielded cable.
7. Insert the shielded cable leads into the connection head through the
cable entry. Connect and tighten the cable gland.
8. Connect the shielded power cable leads to the transmitter power
terminals.
Avoid contact with sensor leads and sensor connections.
9. Install and tighten the connection head cover.
WARNING
Enclosure covers must be fully engaged to meet explosion-proof
requirements.
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Example
D
A
E
B
F
C
A. Rosemount™ 644 Transmitter
B. Connection head
C. Thermowell
D. Transmitter mounting screws
E. Integral mount sensor with flying leads
F. Extension
1.2 Install universal head
Head mount transmitter with threaded sensor.
Procedure
1. Attach the thermowell to the pipe or process container wall. Install
and tighten thermowells before applying process pressure.
2. Attach necessary extension nipples and adapters to the thermowell.
Seal the nipple and adapter threads with silicone tape.
3. Screw the sensor into the thermowell. Install drain seals if required
for severe environments or to satisfy code requirements.
4. Verify the correct installation of Integral Transient Protection (option
code T1).
a) Ensure the transient protector unit is firmly connected to the
transmitter puck assembly.
b) Ensure the transient protector power leads are adequately
secured under the transmitter power terminal screws.
c) Verify the transient protector’s ground wire is secured to the
internal ground screw found within the universal head.
Note
The transient protector requires the use of an enclosure of at least
3.5-in. (89 mm) in diameter.
5. Pull the sensor wiring leads through the universal head and
transmitter. Mount the transmitter in the universal head by
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threading the transmitter mounting screws into the universal head
mounting holes.
6. Mount the transmitter-sensor assembly into the thermowell. Seal
adapter threads with silicone tape.
7. Install conduit for field wiring to the conduit entry of the universal
head. Seal conduit threads with PTFE tape.
8. Pull the field wiring leads through the conduit into the universal
head. Attach the sensor and power leads to the transmitter.
Avoid contact with other terminals.
9. Install and tighten the universal head cover.
Enclosure covers must be fully engaged to meet explosion-proof
requirements.
Example
ABC
D
E
A. Threaded thermowell
B. Standard extension
C. Threaded style sensor
D. Universal head (transmitter and LCD inside)
E. Conduit entry
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2 Wire and apply power
Wiring diagrams are located inside the terminal block cover.
An external power supply is required to power a Fieldbus segment.
The power required across the transmitter power terminals is 9 to 32 Vdc
(the power terminals are rated to 32 Vdc). To prevent damaging the
transmitter, do not allow terminal voltage to drop below 9 Vdc when
changing the configuration parameters.
2.1 Power filter
A Fieldbus segment requires a power conditioner to isolate the power supply
filter and decouple the segment from other segments attached to the same
power supply.
2.2 Power the transmitter
Procedure
1. Remove the terminal block cover (if applicable).
2. Connect the power lead to the power terminals.
The Rosemount™ 644H with FOUNDATION™ Fieldbus is polarity
insensitive.
If a transient protector is being used, the power leads will now be
connected to the top of the transient protector unit.
3. Tighten the terminal screws.
When tightening the sensor and power wires, the max torque is 6 in-
lb. (0.7 N-m).
4. Reattach and tighten the cover (if applicable).
5. Apply power (9–32 Vdc).
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1 2 3 4
A
B
C
A. Sensor terminals
B. Communication terminals
C. Power terminals
Example
Figure 2-1: Sensor Connections
Two-wire RTD and
Ω
Three-wire RTD(1)
and Ω
Four-wire RTD(2)
and Ω
T/C and mV
(1) Emerson provides four-wire sensors for all single element RTDs. Use these RTDs
in three-wire configurations by leaving the unneeded leads disconnected and
insulated with electrical tape.
(2) The transmitters must be configured for at least a three-wire RTD in order to
recognize an RTD with a compensation loop.
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Figure 2-2: Typical Configuration for Fieldbus Networking
A
BC
DE
F
F
G
H
I
A. 6234 ft. (1900 m) max, depending upon cable characteristics
B. Integrated power conditioner and filter
C. Terminators
D. Power supply
E. Trunk
F. Spur
G. Foundation Fieldbus configuration tool
H. Devices 1 through 16
I. Power/signal wiring
Note
The power supply, filter, first terminator, and configuration tool are typically
located in the control room.
Note
Each segment in a Fieldbus trunk must be terminated at both ends.
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3 Ground the transmitter
3.1 Ungrounded thermocouple, mV, and RTD/Ohm inputs
Each process installation has different requirements for grounding. Use the
grounding options recommended by the facility for the specific sensor type,
or begin with grounding option 1 (the most common).
3.1.1 Ground the transmitter: option 1
Procedure
1. Connect sensor wiring shield to the transmitter housing.
2. Ensure the sensor shield is electrically isolated from surrounding
fixtures that may be grounded.
3. Ground signal wiring shield at the power supply end.
Example
A
B
C
DCS
D
A. Sensor wires
B. Transmitter
C. Shield ground point
D. 4-20 mA loop
3.1.2 Ground the transmitter: option 2
Procedure
1. Connect signal wiring shield to the sensor wiring shield.
2. Ensure the two shields are tied together and electrically isolated from
the transmitter housing.
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3. Ground shield at the power supply end only.
4. Ensure the sensor shield is electrically isolated from the surrounding
grounded fixtures.
Example
A
B
C
D
DCS
A. Sensor wires
B. Transmitter
C. Shield ground point
D. 4-20 mA loop
Note
Connect shields together, electrically isolated from the transmitter.
3.1.3 Ground the transmitter: option 3
Procedure
1. Ground sensor wiring shield at the sensor if possible.
2. Ensure the sensor wiring and signal wiring shields are electrically
isolated from the transmitter housing.
3. Do not connect the signal wiring shield to the sensor wiring shield.
4. Ground the signal wiring shield at the power supply end.
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Example
DCS
A
B
C
D
A. Sensor wires
B. Transmitter
C. Shield ground point
D. 4-20 mA loop
3.2 Grounded thermocouple inputs
3.2.1 Ground the transmitter: option 4
Procedure
1. Ground sensor wiring shield at the sensor.
2. Ensure the sensor wiring and signal wiring shields are electrically
isolated from the transmitter housing.
3. Do not connect the signal wiring shield to the sensor wiring shield.
4. Ground signal wiring shield at the power supply end.
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Example
DCS
A
B
C
D
A. Sensor wires
B. Transmitter
C. Shield ground point
D. 4-20 mA loop
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4 Verify tagging
4.1 Commissioning (paper) tag
To identify which device is at a particular location use the removable tag
provided with the transmitter. Ensure the physical device tag (PD Tag field)
is properly entered in both places on the removable commissioning tag and
tear off the bottom portion for each transmitter.
Note
The device description loaded in the host system must be at the same
revision as this device. You can download the device description from
Emerson.com/Rosemount.
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5 Verify transmitter configuration
Each FOUNDATION™ Fieldbus host or configuration tool has a different way of
displaying and performing configurations. Some use Device Descriptions
(DD) or DD methods for configuration and to display data consistently
across platforms. There is no requirement that a host or configuration tool
support these features.
The following is the minimum configuration requirement for a temperature
measurement. This guide is designed for systems not using DD methods.
5.1 Transducer function block
This block contains temperature measurement data for the sensors and the
terminal temperature. It also includes information about sensor types,
engineering units, damping, and diagnostics.
At a minimum, verify the parameters in Table 5-1.
Table 5-1: Transducer Block Parameters
Parameter Comments
Typical configuration
Example: “Pt 100_A_385 (IEC 751)”
Example: “2-wire”, “3-wire”, “4-wire”
Sensor matching configuration
“User Defined, Calvandu”
Example: “2-wire”, “3-wire”, “4-wire”
Set to “User Trim Standard”
Enter sensor specific coefficients
Enter sensor specific coefficients
Enter sensor specific coefficients
Enter sensor specific coefficients
5.2 Analog Input (AI) function block
The AI block processes field device measurements and makes the outputs
available to other function blocks. The output value of the AI block is in
engineering units and contains a status indicating the quality of the
measurements. Use the channel number to define the variable that the AI
block processes.
At a minimum, verify the parameters of each AI block in Table 5-2.
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Table 5-2: AI Block Parameters
Configure one AI Block for each desired measurement.
Parameter Comments
CHANNEL Choices:
1. Sensor 1
2. Housing Temperature
L_TYPE For most measurements, set to “DIRECT”
XD_SCALE Set desired measurement range and units. Units must be one
of the following:
•mV
•Ohms
•°C
•°F
•°R
•K
OUT_SCALE For “DIRECT” L_TYPE, set OUT_SCALE to match XD_SCALE
HI_HI_LIM
HI_LIM
LO_LIM
LO_LO_LIM
Process alarms.
Must be within the range defined by “OUT_SCALE”
Note
To make changes to the AI block, set the BLOCK_MODE (TARGET) to OOS
(out of service). After making the changes, return the BLOCK_MODE
TARGET to AUTO.
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6 Product certifications
6.1 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.
6.2 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).
6.3 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.
6.4 USA
6.4.1 E5 USA Explosionproof, Non-Incendive, Dust-Ignitionproof
Certificate: [XP & DIP]: 3006278; [NI]: 3008880 & 3044581
Standards: FM Class 3600: 2011, FM Class 3615: 2006, FM Class 3616:
2011, FM Class 3810: 2005, ANSI/NEMA® 250: 2003,
ANSI/IEC 60529: 2004
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
Certificate: 1091070
Standards: FM Class 3600: 2011, FM Class 3615: 2006, FM Class 3616:
2011, UL Std. No. 61010-1-12, 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;
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6.4.2 I5 USA Intrinsic Safety and Non-Incendive
Certificate: 3008880 [Headmount Fieldbus/PROFIBUS®, Railmount
HART® ]
Standards: FM Class 3600: 2011, FM Class 3610: 2010, FM Class 3611:
2004, FM Class 3810: 2005, NEMA – 250: 1991
Markings: IS CL I/II/III, DIV I, GP A, B, C, D, E, F, G; 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 an enclosure meeting
the requirements of ANSI/ISA S82.01 and S82.03 or other applicable
ordinary location standards.
2. Option code K5 is only applicable with a Rosemount enclosure.
However, K5 is not valid with enclosure option S1, S2, S3, or S4.
3. An enclosure option must be selected to maintain a Type 4X rating.
Certificate: 3044581 [Headmount HART]
Standards: FM Class 3600: 2011, FM Class 3610: 2010, FM Class 3611:
2004, FM Class 3810: 2005, ANSI/NEMA – 250: 1991,
ANSI/IEC 60529: 2004; ANSI/ISA 60079-0: 2009; ANSI/ISA
60079-11: 2009
Markings: [No Enclosure]: IS CL I, DIV I, GP A, B, C, D T4; CL I ZONE 0 AEx
ia IIC T4 Ga; NI CL I, DIV 2, GP A, B, C, D T5 [With Enclosure]: IS
CL I/II/III, DIV 1, GP A, B, C, D, E, F, G; NI CL I, DIV 2, GP A, B, C,
D; Type 4X; IP68
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. The Rosemount 644 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.
Certificate: 1091070
Standards: FM Class 3600: 2011, FM Class 3610: 2010, FM Class 3611:
2004, UL Std. No. 61010-1-12, UL Std. No. 50E, CAN/CSA
C22.2 No. 60529-05, UL Std. No. 60079-11: Ed. 6
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Markings: IS CL I/ II/ III, DIV 1, 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
4. The Rosemount 644 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.
6.5 Canada
6.5.1 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. 60079-11:14, CAN/CSA
Std. No. 61010-1-12
Markings: [HART] IS CL I GP A, B, C, D T4/T6; CL I, ZONE 0 IIC; 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
6.5.2 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. 60079-11:14, 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
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