Emerson Rosemount 644R User manual

Quick Start Guide
00825-0100-4728, Rev DA
June 2016
Rosemount™644H (Device Revision 7 or
Previous) and 644R Smart Temperature
Transmitters

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Quick Start Guide
NOTICE
This guide provides basic guidelines for the Rosemount 644. 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
EmersonProcess.com/Rosemount.
Explosions could result in death or serious injury.
Installation of this transmitter in an explosive environment must be in accordance with the appropriate local,
national, and international standards, codes, and practices. Review the Product Certifications for any
restrictions associated with a safe installation. In an Explosionproof/Flameproof installation, do not remove
the transmitter covers when power is applied to the unit.
Process leaks may cause harm or result in death.
Install and tighten thermowells or sensors before applying pressure.
Do not remove the thermowell while in operation.
Electrical shock can result in 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) . . . . . . . . . . . . . . 3
Verify configuration . . . . . . . . . . . . . . . . . . . . . . 4
Set the switches . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Mount the transmitter . . . . . . . . . . . . . . . . . . . . 8
Wire and apply power . . . . . . . . . . . . . . . . . . . . 12
Perform a loop test . . . . . . . . . . . . . . . . . . . . . . 15
Product Certifications . . . . . . . . . . . . . . . . . . . . 16

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1.0 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.
Perform the following steps to determine if an upgrade is required.
1. Connect the sensor (see 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.
4. 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?
Note
If this notice does not appear, the latest DD is installed. If the latest version is not available,
the communicator will communicate properly. Note that, when the transmitter is
configured to utilize 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.
Figure 1. Connecting a Communicator to a Bench Loop
Rosemount 644 Head Mount Transmitter Rosemount 644 Rail Mount Transmitter
A. 250 Ω≤RL≤1100 Ω
B. AMS™ Device Manager
C. Field Communicator
D. Power supply
B
C
A
D
A
BC
D

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Quick Start Guide
2.0 Verify configuration
The traditional interface Fast Key sequences in Table 1and Device Dashboard Fast
Key Sequences in Table 2 may be used for transmitter configuration and startup.
2.1 Field Communicator user interface
The Traditional Interface Fast Key Sequences can be found on Table 1 on page 5.
Figure 2. Traditional Interface
The Device Dashboard Fast Key Sequence can be found on Table 2 on page 6.
Figure 3. Device Dashboard

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Table 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
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

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Quick Start Guide
2.2 Input/verify Callendar Van-Dusen constants
If sensor matching is being used with this combination of a transmitter and
sensor, verify the constants input.
1. From the Home screen, select 1 Device Setup, 3 Configuration, 2 Sensor
Config, 1 Sensor 1, 3 Cal Van-Dusen. Set the control loop to manual. Select
OK.
2. At the Enter Sensor Type prompt, select Cal Van-Dusen.
3. At the Enter Sensor Connection prompt, select the appropriate number of
wires.
4. Enter the Ro, Alpha, Beta, and Delta values from the stainless steel tag
attached to the special-order sensor.
5. Select OK after you return the control loop to automatic control.
Table 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 2, 2, 4, 7, 1 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

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2.3 Input/verify Callendar Van-Dusen constants
If sensor matching is being used with this combination of a transmitter and
sensor, verify the constants input.
1. From the Home screen, select 2 Configure, 2 Manual Setup, 1 Sensor. Set the
control loop to manual and select OK.
2. At the Enter Sensor Type prompt, select Cal VanDusen.
3. At the Enter Sensor Connection, select the appropriate number of wires
prompt.
4. Enter the Ro, Alpha, Delta, and Beta values from the stainless steel tag
attached to the special-order sensor when prompted.
5. Return the control loop to automatic control and select OK.
6. To disable the transmitter-sensor matching feature from the Home screen
select 2 Configure, 2 Manual Setup, 1 Sensor, 10 SensorMatching-CVD. At
the Enter Sensor Type prompt, select the appropriate sensor type.
3.0 Set the switches
3.1 Rosemount 644H (switch on bottom right of electronics
module)
Without an LCD display
1. Set the loop to manual (if applicable) and disconnect the power.
2. Remove the electronics housing cover.
3. Set the switch to the desired position. Replace housing cover.
4. Apply power and set the loop to automatic control.
With an LCD display (Rosemount 644H only)
1. Set the loop to manual (if applicable) and disconnect the power.
2. Remove the electronics housing cover.
3. Snap-off the LCD display straight off.
4. Set the switch to the desired position.
5. Reattach the LCD display and electronics housing cover (consider LCD display
orientation – rotate in 90°increments).
6. Apply power and set the loop to automatic control.
3.2 Rosemount 644R (switch on middle of front panel)
1. Open the front door of the Rosemount 644R Rail Mount Transmitter.
2. Set the switch to the desired position.

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Quick Start Guide
4.0 Mount the transmitter
Mount the transmitter at a high point in the conduit run to prevent moisture from
draining into the transmitter housing.
4.1 Typical connection head installation
Head mount transmitter with DIN plate style sensor
1. Attach the thermowell to the pipe or process container wall. Install and
tighten the thermowell before applying process pressure.
2. Verify the transmitter failure mode switch.
3. 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.
4. Wire the sensor to the transmitter (see “Wire and apply power” on page 12 for
more information).
5. Insert the transmitter-sensor assembly into the connection head. Thread the
transmitter mounting screw into the connection head mounting holes.
Assemble the extension to the connection head. Insert the assembly into the
thermowell.
6. Slip the shielded cable though the cable gland.
7. Attach a cable gland into the shielded cable.
8. Insert the shielded cable leads into the connection head through the cable
entry. Connect and tighten the cable gland.
9. Connect the shielded power cable leads to the transmitter power terminals.
Avoid contact with sensor leads and sensor connections.
10. Install and tighten the connection head cover. Enclosure covers must be fully
engaged to meet explosion-proof requirements.
A. Rosemount 644H Transmitter D. Transmitter mounting screws
B. Connection head E. Integral mount sensor with flying leads
C. Thermowell F. Ex tension
D
A
E
B
F
C

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4.2 Typical universal head installation
Head mount transmitter with threaded sensor
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 transmitter failure mode switch.
5. Pull the sensor wiring leads through the universal head and transmitter.
Mount the transmitter in the universal head by 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 silicone 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.
A. Threaded thermowell D. Universal head (transmitter inside)
B. Standard extension E. Conduit entry
C. Threaded style sensor
ABCD
E

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Quick Start Guide
4.3 Rail mount transmitter and sensor
1. Attach the transmitter to a suitable rail or panel.
2. Attach the thermowell to the pipe or process container wall. Install and
tighten the thermowell, according to plant standards, before applying
pressure.
3. Attach the sensor to the connection head and mount the entire assembly to
the thermowell.
4. Attach and connect sufficient lengths of sensor lead wire from the connection
head to the sensor terminal block.
5. Tighten the connection head cover. Enclosure covers must be fully engaged to
meet explosion-proof requirements.
6. Run sensor lead wires from the sensor assembly to the transmitter.
7. Verify the transmitter failure mode switch.
8. Attach the sensor wires to the transmitter (see “Wire and apply power” on
page 12 for more information).
A. Rail mount transmitter D. Connection head
B. Sensor leads with cable glands E. Standard extension
C. Integral mount sensor with terminal block F. Threaded thermowell
A
B
C
D
E
F