Emerson Rosemount 644 Manuale utente
Quick Start Guide
00825-0200-4728, Rev HC
May 2019
Rosemount™ 644 Temperature
Transmitter
with 4–20 mA HART® Protocol (Revision 5
and 7)
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
Physical access
Unauthorized personnel may potentially cause significant damage to and/or misconfiguration of
end users’ equipment. This could be intentional or unintentional and needs to be protected against.
Physical security is an important part of any security program and fundamental to protecting your
system. Restrict physical access by unauthorized personnel to protect end users’ assets. This is true
for all systems used within the facility.
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.
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2 Emerson.com/Rosemount
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.
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
System readiness......................................................................................................................... 5
Transmitter installation................................................................................................................ 6
Safety instrumented systems..................................................................................................... 24
Product certifications................................................................................................................. 25
May 2019 Quick Start Guide
Quick Start Guide 3
Quick Start Guide May 2019
4 Emerson.com/Rosemount
1 System readiness
1.1 Confirm HART® revision capability
•If using HART based control or asset management systems, confirm the
HART capability of those systems prior to transmitter installation. Not all
systems are capable of communicating with HART Revision 7 Protocol.
You can configure thie transmitter for either HART Revision 5 or 7.
1.2 Confirm correct device driver
Procedure
1. Verify the latest Device Driver files are loaded on your systems to
ensure proper communications.
2. Download the latest Device Driver at Emerson.com/Device-Install-
Kits/Device-Install-Kit-Search
Table 1-1 provides the information necessary to ensure the correct
Device Driver files and documentation are being used.
Table 1-1: Device Revisions and Files
Software
date
NAMUR
Software
revision
HART®
Software
revision
HART
Universal
revision(1
)
Device
revision(2
)
Manual
Document
Number
Changes to
Software(3)
June 2012 1.1.1 3 5 8 00809-0100-47
28
See (3) for list of
changes.
7 9
(1) NAMUR software revision is located on the hardware tag of the device. HART software
revision can be read using a HART communication tool.
(2) Device Driver file names use Device and DD Revision, e.g. 10_01. HART Protocol is designed
to enable legacy device driver revisions to continue to communicate with new HART devices.
To access new functionality, download the new Device Driver. Emerson recommends
downloading new Device Driver files to ensure full functionality.
(3) HART Revision 5 and 7 Selectable, Dual Sensor support, Safety Certified, Advanced
Diagnostics (if ordered), Enhanced Accuracy and Stability (if ordered).
May 2019 Quick Start Guide
Quick Start Guide 5
2 Transmitter installation
2.1 Set the alarm switch
Set the alarm switch before putting the device into operation.
Procedure
1. Set the loop to manual (if applicable) and disconnect the power
2. Remove the LCD display by detaching from the transmitter (if
applicable).
3. Set the switch to the desired position.
H indicates High; L indicates Low.
4. Reattach the LCD display to the transmitter (if applicable).
5. Reattach the housing cover. Ensure covers must be fully engaged to
meet explosion-proof requirements.
6. Apply power and set the loop to automatic control (if applicable).
Example
Figure 2-1: Alarm Switch Placement
Rosemount™ 644 Transmitter Rosemount 644 Field Mount
A
A. Alarm switch
Note
If using an LCD display, remove the display by detaching it from the top of
the device, set the switch to the desired position, reattach the LCD display,
and reattach the housing cover. Enclosure covers must be fully engaged to
meet explosion-proof requirements.
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6 Emerson.com/Rosemount
2.2 Verify configuration
Upon receiving your transmitter, verify its configuration using any HART®-
compliant configuration tool. See the Rosemount™ 644 Reference Manual
for configuration instructions using AMS Device Manager.
The transmitter communicates using the Field Communicator
(communication requires a loop resistance between 250 and 1100 ohms).
Do not operate when power is below 12 Vdc at the transmitter terminal. See
the Field Communicator Reference Manual for more information.
2.2.1 Verify configuration with a Field Communicator
To verify configuration, you must install a Rosemount™ 644 DD (Device
Descriptor) on the Field Communicator.
Fast Key sequences for the latest DD are shown in Table 2-1. For Fast Key
sequences using legacy DD's, contact your local Emerson representative.
Perform the following steps to determine if an upgrade is required.
Procedure
1. Connect the sensor.
See the wiring diagram located on the device’s top label.
2. Connect the bench power supply to the power terminals (“+” or “–”).
3. Connect a Field Communicator to the loop across a loop resistor or at
the power/signal terminals on the transmitter.
The following message will appear if the communicator has a previous
version of the DDs:
Device Description Not Installed…The Device
Description for manufacturer 0x26 model 0x2618 dev
rev 8/9 is not installed on the System Card…see
Programming Utility for details on Device
Description updates…Do you wish to proceed in
forward compatibility mode?
If this notice does not appear, the latest DD is installed. If the latest version is
not available, the communicator will communicate properly; however, when
the transmitter is configured to utilize advanced transmitter features, there
will be trouble communicating and a prompt to turn off the communicator
will display. To prevent this from happening, upgrade to the latest DD or
answer NO to the question and default to the generic transmitter
functionality.
May 2019 Quick Start Guide
Quick Start Guide 7
Note
Emerson recommends installing the latest DD to access the complete
functionality. Visit Emerson.com/Field-Communicator for information on
updating the DD Library.
2.2.2 Field Communicator user interface
Two user interfaces are available to configure this device.
Figure 2-2 may be used for transmitter configuration and startup.
Figure 2-2: Device Dashboard Field Communicator Interface
Table 2-1: Device Revision 8 and 9 (HART® 5 and 7), DD Revision 1 Fast
Key Sequence
Function HART 5 HART 7
Alarm Values 2, 2, 5, 6 2, 2, 5, 6
Analog Calibration 3, 4, 5 3, 4, 5
Analog Output 2, 2, 5, 1 2, 2, 5, 1
Average Temperature
Setup
2, 2, 3, 3 2, 2, 3, 3
Burst Mode 2, 2, 8, 4 2, 2, 8, 4
Comm Status N/A 1, 2
Configure Additional
Messages
N/A 2, 2, 8, 4, 7
Configure Hot Backup ™2, 2, 4, 1, 3 2, 2, 4, 1, 3
D/A Trim 3, 4, 4, 1 3, 4, 4, 1
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8 Emerson.com/Rosemount
Table 2-1: Device Revision 8 and 9 (HART® 5 and 7), DD Revision 1 Fast
Key Sequence (continued)
Function HART 5 HART 7
Damping Values 2, 2, 1, 5 2, 2, 1, 6
Date 2, 2, 7, 1, 2 2, 2, 7, 1, 3
Display Setup 2, 1, 4 2, 1, 4
Descriptor 2, 2, 7, 1, 4 2, 2, 7, 1, 5
Device Information 1, 8, 1 1, 8, 1
Differential Temperature
Setup
2, 2, 3, 1 2, 2, 3, 1
Drift Alert 2, 2, 4, 2 2, 2, 4, 2
Filter 50/60 Hz 2, 2, 7, 4, 1 2, 2, 7, 4, 1
First Good Temperature
Setup
2, 2, 3, 2 2, 2, 3, 2
Hardware Revision 1, 8, 2, 3 1, 8, 2, 3
HART Lock N/A 2, 2, 9, 2
Intermittent Sensor
Detect
2, 2, 7, 4, 2 2, 2, 7, 4, 2
Loop Test 3, 5, 1 3, 5, 1
Locate Device N/A 3, 4, 6, 2
Lock Status N/A 1, 8, 3, 8
LRV (Lower Range Value) 2, 2, 5, 5, 3 2, 2, 5, 5, 3
LSL (Lower Sensor Limit) 2, 2, 1, 7, 2 2, 2, 1, 8, 2
Message 2, 2, 7, 1, 3 2, 2, 7, 1, 4
Open Sensor Holdoff 2, 2, 7, 3 2, 2, 7, 3
Percent Range 2, 2, 5, 2 2, 2, 5, 2
Sensor 1 Configuration 2, 1, 1 2, 1, 1
Sensor 2 Configuration 2, 1, 1 2, 1, 1
Sensor 1 Serial Number 2, 2, 1, 6 2, 2, 1, 7
Sensor 2 Serial Number 2, 2, 2, 7 2, 2, 2, 8
Sensor 1 Type 2, 2, 1, 2 2, 2, 1, 3
Sensor 2 Type 2, 2, 2, 2 2, 2, 2, 3
Sensor 1 Unit 2, 2, 1, 4 2, 2, 1, 5
May 2019 Quick Start Guide
Quick Start Guide 9
Table 2-1: Device Revision 8 and 9 (HART® 5 and 7), DD Revision 1 Fast
Key Sequence (continued)
Function HART 5 HART 7
Sensor 2 Unit 2, 2, 2, 4 2, 2, 2, 5
Sensor 1 Status N/A 2, 2, 1, 2
Sensor 2 Status N/A 2, 2, 2, 2
Simulate Digital Signal N/A 3, 5, 2
Software Revision 1, 8, 2, 4 1, 8, 2, 4
Tag 2, 2, 7, 1, 1 2, 2, 7, 1, 1
Long Tag N/A 2, 2, 7, 1, 2
Terminal Temperature 2, 2, 7, 1 2, 2, 8, 1
URV (Upper Range Value) 2, 2, 5, 5, 2 2, 2, 5, 5, 2
USL (Upper Sensor Limit) 2, 2, 1, 7, 2 2, 2, 1, 8, 2
Variable Mapping 2, 2, 8, 5 2, 2, 8, 5
2-wire Offset Sensor 1 2, 2, 1, 9 2, 2, 1, 10
2-wire Offset Sensor 2 2, 2, 2, 9 2, 2, 2, 10
2.2.3 Input or verify Callendar Van-Dusen constants
If using sensor matching with this combination of a transmitter and sensor,
verify the constants input.
Procedure
1. From the HOME screen, select2 Configure → 2 Manual Setup → 1
Sensor.
2. Set the control loop to manual and select OK.
3. At the ENTER SENSOR TYPE prompt, select Cal VanDusen.
4. At the ENTER SENSOR CONNECTION prompt, select the
appropriate number of wires.
5. Enter the Ro, Alpha, Delta, and Beta values from the stainless steel
tag attached to the special-order sensor when prompted.
6. Return the control loop to automatic control and select OK.
7. To disable the transmitter-sensor matching feature from the HOME
screen select 2 Configure → 2 Manual Setup → 1 Sensor → 10
Sensor Matching-CVD.
8. Choose the appropriate sensor type from the ENTER SENSOR
TYPE prompt.
Quick Start Guide May 2019
10 Emerson.com/Rosemount
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