Emerson Rosemount 644h User manual
Quick Start Guide
00825-0100-4728, Rev DB
April 2019
Rosemount™ 644H and 644R Smart
Temperature Transmitters
Device Revision 7 or Previous
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.
Quick Start Guide April 2019
2 Rosemount 644H and 644R
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
Configure (bench calibration)........................ 5
Verify configuration....................................... 7
Set switches.................................................12
Mount the transmitter................................. 13
Wire and apply power.................................. 19
Perform a loop test...................................... 25
Product Certifications.................................. 27
April 2019 Quick Start Guide
Quick Start Guide 3
Quick Start Guide April 2019
4 Rosemount 644H and 644R
1 Configure (bench calibration)
The Rosemount™ 644 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. Refer
to the Rosemount 644 Reference Manual and the Field Communicator
Reference Manual for more information.
1.1 Update the field communicator software
The Field Communicator field device revision Dev v6, Device Dashboard
(DD) v1 or higher is required for complete functionality. The device will
communicate with all previous Rosemount™ 644 DD revisions.
Use this procedure to determine if a software upgrade is required.
Figure 1-1: Connecting a communicator to a bench loop
Rosemount 644 head mount and field
mount
Rosemount 644 rail mount
B
A
A. 250Ω ≤ RL ≤ 1100Ω
B. AMS™ Device Manager
C. Power supply
D. Field Communicator
Procedure
1. Connect the sensor.
See the wiring diagram on the inside of housing cover.
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 device descriptors (DDs). Upgrade the
communicator software to access new XMTR
functions. Continue with old description?
April 2019 Quick Start Guide
Quick Start Guide 5
Need help?
•If this notice does not appear, the latest DD is installed.
•If the latest version is not available, the communicator will
communicate properly.
Note
When the transmitter is configured to use the advanced features of
the transmitter (i.e., one of the added sensor input types), the user
will experience trouble communicating and will be prompted to turn
the communicator off. To prevent this from happening, upgrade to
the latest DD or answer NO to the question and default to the
generic transmitter functionality.
Quick Start Guide April 2019
6 Rosemount 644H and 644R
2 Verify configuration
Use fast key sequences to verfiy transmitter configuration.
The traditional interface Fast Key sequences in Table 2-1 and Table 2-2 may
be used for transmitter configuration and startup.
2.1 Field communicator traditional user interface
The traditional interface and fast key sequences.
Figure 2-1: Field Communicator Traditional Interface
Table 2-1: Traditional Interface Fast Key Sequences
Function Fast keys Function Fast Keys
Active Calibrator 1, 2, 2, 1, 3 Open Sensor
Holdoff
1, 3, 5, 3
Alarm/Saturation 1, 3, 3, 2 Percent Range 1, 1, 5
AO Alarm Type 1, 3, 3, 2, 1 Poll Address 1, 3, 3, 3, 1
Burst Mode 1, 3, 3, 3, 3 Process
Temperature
1, 1
Burst Option 1, 3, 3, 3, 4 Process Variables 1, 1
Calibration 1, 2, 2 PV Damping 1, 3, 3, 1, 3
April 2019 Quick Start Guide
Quick Start Guide 7
Table 2-1: Traditional Interface Fast Key Sequences (continued)
Function Fast keys Function Fast Keys
Callendar-Van
Dusen
1, 3, 2, 1 PV Unit 1, 3, 3, 1, 4
Configuration 1, 3 Range Values 1, 3, 3, 1
D/A Trim 1, 2, 2, 2 Review 1, 4
Damping Values 1, 1, 10 Scaled D/A Trim 1, 2, 2, 3
Date 1, 3, 4, 2 Sensor Connection 1, 3, 2, 1, 1
Descriptor 1, 3, 4, 3 Sensor 1 Setup 1, 3, 2, 1, 2
Device Info 1, 3, 4 Sensor Serial
Number
1, 3, 2, 1, 4
Device Output
Configuration
1, 3, 3 Sensor 1 Trim 1, 2, 2, 1
Diagnostics and
Service
1, 2 Sensor 1 Trim-
Factory
1, 2, 2, 1, 2
Filter 50/60 Hz 1, 3, 5, 1 Sensor Type 1, 3, 2, 1, 1
Hardware Rev 1, 4, 1 Software Revision 1, 4, 1
HART Output 1, 3, 3, 3 Status 1, 2, 1, 4
Intermittent
Detect
1, 3, 5, 4 Tag 1, 3, 4, 1
LCD Display
Options
1, 3, 3, 4 Terminal
Temperature
1, 3, 2, 2
Loop Test 1, 2, 1, 1 Test Device 1, 2, 1
LRV (Lower Range
Value)
1, 1, 6 URV (Upper Range
Value)
1, 1, 7
LSL (Lower Sensor
Limit)
1, 1, 8 USL (Upper Sensor
Limit)
1, 1, 9
Measurement
Filtering
1, 3, 5 Variable Mapping 1, 3, 1
Message 1, 3, 4, 4 Variable Re-Map 1, 3, 1, 5
Meter Configuring 1, 3, 3, 4, 1 Write Protect 1, 2, 3
Meter Decimal
Point
1, 3, 3, 4, 2 2-Wire Offset 1, 3, 2, 1, 2, 1
Num Req Preams 1, 3, 3, 3, 2
Quick Start Guide April 2019
8 Rosemount 644H and 644R
2.2 Input/verify the Callendar Van-Dusen constants on the
Field Communicator traditional user interface
If using sensor matching with this combination of a transmitter and sensor,
verify the constants input.
Procedure
1. From the Home screen, select 1 Device Setup > 3 Configuration > 2
Sensor Config > 1 Sensor 1 > 3 Cal Van-Dusen.
2. Set the control loop to manual and select OK.
3. At the Enter Sensor Type prompt, select Cal Van-Dusen
4. At the Enter Sensor Connection prompt, select the
appropriate number of wires.
5. Enter the R0, Alpha, Beta, and Delta values from the stainless steel
tag attached to the special-order sensor.
6. Return the control loop to automatic control and select OK.
2.3 Field Communicator device dashboard
Figure 2-2: Device Dashboard
April 2019 Quick Start Guide
Quick Start Guide 9
Table 2-2: Device Dashboard Fast Key Sequences
Function Fast keys Function Fast keys
Active Calibrator 2, 2, 4, 2 Num Req Preams 2, 2, 5, 2
Alarm/Saturation 2, 2, 2, 6 Open Sensor
Holdoff
2, 2, 4, 4
Burst Mode 2, 2, 5, 3 Percent Range 2, 2, 2, 4
Burst Option 2, 2, 5, 4 Poll Address 2, 2, 5, 1
Calibration 2, 1, 2 PV Damping 2, 2, 1, 6
Callendar-Van
Dusen
2, 2, 1, 10 PV Unit 2, 2, 1, 4
Configuration 2, 1, 1 Range Values 2, 2, 2, 5
D/A Trim 3, 4, 2 Scaled D/A Trim 3, 4, 3
Damping Values 2, 2, 1, 6 Sensor Connection 2, 2, 1, 3
Date 1, 7, 8 Sensor 1 Setup 2, 2, 1
Descriptor 1, 7, 6 Sensor Serial
Number
2, 2, 1, 7
Device Info 1, 7 Sensor 1 Trim 3, 4, 1
Device Output
Configuration
2, 2, 2 Sensor 1 Trim-
Factory
3, 4, 1, 2
Filter 50/60 Hz 1, 3, 3 Sensor Type 2, 2, 1, 2
Hardware Rev 1, 7, 9, 3 Software Revision 1, 7, 9, 4
HART Output 2, 2, 5 Tag 2, 2, 4, 1, 1
LCD Display
Options
2, 2, 3 Terminal
Temperature
3, 3, 2
Loop Test 3, 5, 1 URV (Upper Range
Value)
2, 2, 2, 5, 2
LRV (Lower Range
Value)
2, 2, 2, 5, 3 USL (Upper Sensor
Limit)
2, 2, 1, 8
LSL (Lower Sensor
Limit)
2, 2, 1, 9 Variable Mapping 2, 2, 5, 5
Message 1, 7, 7 Variable Re-Map 2, 2, 5, 5, 5
Meter Configuring 2, 2, 3, 1 Write Protect 2, 2, 4, 6
Meter Decimal
Point
2, 2, 3, 2 2-Wire Offset 2, 2, 1, 5
Quick Start Guide April 2019
10 Rosemount 644H and 644R
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