Installation and Operation Manual
P/N 1005172, Rev. C
August 2008
Micro Motion®
Model D and DT Sensors
Instruction Manual
©2008, Micro Motion, Inc. All rights reserved. ELITE and ProLink are registered trademarks, and MVD and MVD Direct Connect
are trademarks of Micro Motion, Inc., Boulder, Colorado. Micro Motion is a registered trade name of Micro Motion, Inc., Boulder,
Colorado. The Micro Motion and Emerson logos are trademarks and service marks of Emerson Electric Co. All other trademarks
are property of their respective owners.
Contents
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Your new sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The installation process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additional information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
6
7
Step 2. Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Pipe run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum wiring distances . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DT sensor junction box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Environmental limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Valves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hazardous area installations . . . . . . . . . . . . . . . . . . . . . . . . . . .
Step 3. Orientation
................................
Flow direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Process fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Step 4. Mounting
..................................
Conduit openings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Model D600 mounting . . . . . . . . . . . . . . . . . . . . . . . . .
DT sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Step 5. Wiring
.....................................
Hazardous area installations . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model D sensor junction box . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model DT sensor cable and junction box . . . . . . . . . . . . . . . . . .
Connecting and shielding 9-wire cable . . . . . . . . . . . . . . . . . . . .
D600 sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power supply wiring to the remote booster amplifier . . . . . . . . .
Power supply wiring to the integral booster amplifier . . . . . . . . .
Wiring from the remote booster amplifier to the sensor . . . . . . .
Wiring to a transmitter (D600 sensor with junction box) . . . . . . .
Core processor to a 4-wire remote transmitter or remote host . .
Sensor grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
9
10
10
10
11
13
13
13
17
18
18
18
19
19
19
20
21
24
26
27
28
29
32
37
Step 6. Startup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Zeroing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration, calibration, and characterization . . . . . . . . . . . . .
Customer Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Micro Motion® Model D and DT Sensors Instruction Manual
39
39
40
iii
Contents continued
Troubleshooting
...................................
General information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Zero drift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Erratic flow rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inaccurate flow rate or batch total . . . . . . . . . . . . . . . . . . . . . . . .
Inaccurate density reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inaccurate temperature reading . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting at the transmitter . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting at the sensor. . . . . . . . . . . . . . . . . . . . . . . . . . .
41
41
42
43
44
45
46
46
51
Appendix A
Purge Fittings . . . . . . . . . . . . . . . . . . . . . . 55
Appendix B
Rupture Disk . . . . . . . . . . . . . . . . . . . . . . . 59
Appendix C Label Maintenance and
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Appendix D
iv
Return Policy
......................
65
Micro Motion® Model D and DT Sensors Instruction Manual
Before You Begin
Your new sensor
Your new Micro Motion® Model D or DT sensor, or D600 sensor and
booster amplifier, is one part of a Coriolis flowmetering system. The
other part is a transmitter.
Transmitter connections
Model D sensors are available with a factory-supplied 9-wire junction
box for connecting to a remotely mounted transmitter, or to a remotely
mounted core processor.
Model DT sensors are available with a 3-foot (1-meter) pigtail of cable
that connects to a user-supplied junction box. The junction box connects
to a remotely mounted transmitter, or to a remotely mounted core
processor.
The D600 has a booster amplifier. The booster amplifier is available with
a factory-supplied 9-wire junction box for connecting to a remotely
mounted transmitter, or with a factory-supplied core processor for
connecting to a 4-wire remotely mounted transmitter or to a usersupplied remote host.
All Model D and DT sensors may be connected to the Micro Motion
transmitters listed in Table 1. The D600 sensor may be connected to the
transmitters listed in Table 2.
Table 1.
Transmitter and sensor compatibility guide
Transmitter
Model 1700/2700 (9-wire)
Model 3500/3700 (9-wire)
RFT9739 (7- or 9-wire)
IFT9701 (9-wire)
RFT9712 (7- or 9-wire)
Model D sensor
(factory-supplied junction box)
X
X
X
X(1)
X
Model DT sensor
(user-supplied junction box)
X
X
X
X
(1)Except D600.
Micro Motion® Model D and DT Sensors Instruction Manual
1
Before You Begin continued
The D600 sensor and booster amplifier are available in any of the
configurations described in Table 2. Table 2 also lists the transmitters
that can be used with each configuration.
Table 2.
D600 configurations and compatible transmitters
D600 sensor configuration
Booster amplifier location
Booster amplifier wiring
component
Connection to
transmitter
Integral to sensor
Junction box
9-wire
Core processor
4-wire
Junction box
9-wire
Core processor
4-wire
Remote from sensor
Compatible transmitters
• Model 1700/2700 (with integral core
processor)
• Model 3500/3700 (9-wire)
• RFT9739
• RFT9712
• Remote core processor
• Model 1700/2700
• Model 3500/3700 (MVD)
• Model 2500
• Direct host(1)
• Model 1700/2700 (with integral core
processor)
• Model 3500/3700 (9-wire)
• RFT9739
• RFT9712
• Remote core processor
• Model 1700/2700
• Model 3500/3700 (MVD)
• Model 2500
• Direct host(1)
(1)A direct host is a user-supplied remote controller, PLC, or other device.
European installations
This Micro Motion product complies with all applicable European
directives when properly installed in accordance with the instructions in
this quick reference guide. Refer to the EC declaration of conformity for
directives that apply to this product.
The EC declaration of conformity, with all applicable European
directives, and the complete ATEX Installation Drawings and Instructions
are available on the internet at www.micromotion.com/atex or through
your local Micro Motion support center.
Information affixed to equipment that complies with the Pressure
Equipment Directive can be found on the internet at
www.micromotion.com/library.
Sensor components
Components of the sensor are illustrated on pages 3-6.
2
Micro Motion® Model D and DT Sensors Instruction Manual
Before You Begin continued
DS025, DH025, DH038, and DS040 sensors
Junction box
Flow direction
arrow
Process
connection
Purge connections
(optional)
Calibration tag
Approvals tag
Ground screw
Sensor housing
DS065, DS100, DH100, DS150, DH150, DS300, and DH300 sensors
Junction box
Flow direction
arrow
Process
connection
Purge connection
(optional)
Calibration tag
Sensor
housing
Approvals
tag
Purge connection
(optional)
Ground screw
Micro Motion® Model D and DT Sensors Instruction Manual
3
Before You Begin continued
D600 sensor with integral booster amplifier and junction box
Process connection
Junction box
Booster
amplifier
Flow direction
arrow
Approval tag
Calibration tag
Customer tag
(if requested)
Sensor housing
Snub-mount
connector
D600 sensor with integral booster amplifier and core processor
Process connection
Core processor
Flow direction
arrow
Calibration tag
Booster amplifier
Approval tag
Customer tag (if
requested)
Sensor housing
Snub mount connector
4
Micro Motion® Model D and DT Sensors Instruction Manual
Before You Begin continued
D600 sensor with remote booster amplifier and junction box
Factory-supplied wiring
Explosion-proof wiring
Intrinsically
safe wiring
Process connection
Approval tag
Flow direction
arrow
Calibration tag
Approval tag
Customer tag
(if requested)
Junction box
Remote booster
amplifier
Sensor housing
Snub-mount
connector
D600 sensor with remote booster amplifier and core processor
Intrinsically safe
wiring
Factory-supplied wiring
Explosion-proof wiring
Process connection
Approval tag
Flow
direction
arrow
Calibration tag
Approval
tag
Customer tag
(if requested)
Core
processor
Sensor housing
Remote booster
amplifier
Snub mount
connector
Micro Motion® Model D and DT Sensors Instruction Manual
5
Before You Begin continued
DT065, DT100, and DT150 sensors
Lifting handle
Flow direction arrow
Process
connection
Calibration tag
Approvals tag
Ground screw
Sensor housing
Sensor cable with flexible conduit
The installation process
Installing your new sensor involves five steps:
Step 1. Location
Determining the proper location for the sensor, taking into account
hazardous areas, process piping, transmitter location, and valves. See
page 9.
Step 2. Orientation
Determining the desired orientation for the sensor in the process
pipeline. See page 13.
Step 3. Mounting
Installing the sensor in the pipeline. See page 17.
Step 4. Wiring
Connecting the flowmeter cable to the sensor and transmitter. See
page 19.
Step 5. Startup
Requirements for flowmeter startup. See page 39.
6
Micro Motion® Model D and DT Sensors Instruction Manual
Before You Begin continued
Additional information
In addition to installation instructions, the following subjects are also
covered in this manual:
• Troubleshooting for problems that might be attributable to the sensor
begins on page 41.
• Purge fittings are described in Appendix A, page 55.
• Rupture disks are discussed in Appendix B, page 59.
• Maintenance of labels is covered in Appendix C, page 61.
• Return policy for Micro Motion equipment is described in Appendix D,
page 65.
Micro Motion® Model D and DT Sensors Instruction Manual
7
8
Micro Motion® Model D and DT Sensors Instruction Manual
Installation
Step 1
Location
Keys for sensor location
The sensor may be located anywhere in the process line, as long as
the following conditions are met:
• Before operation, you must be able to stop flow through the sensor.
(During the zeroing procedure, flow must be stopped completely, and
the sensor must be full of process fluid.)
• The sensor must be installed in an area that is compatible with the
classification specified on the sensor approvals tag. (See
illustrations, pages 3-6.)
Pipe run
Micro Motion sensors do not require a straight run of pipe upstream or
downstream.
Maximum wiring distances
Use these guidelines for calculating maximum wiring distances.
Maximum distance between sensor and transmitter depends on cable
type. See Table 1.
.
Table 1.
Maximum cable lengths
Cable type
Wire gauge
Maximum length
Micro Motion 9-wire to an MVD
transmitter or core processor
Not applicable
60 feet (20 meters)
Micro Motion 9-wire to all other
transmitters
Not applicable
1000 feet (300
meters)
Micro Motion 4-wire
Not applicable
1000 feet (300
meters)
22 AWG (0,35 mm2)
300 feet (90 meters)
User-supplied 4-wire(1)
•
•
Power wires (VDC)
Signal wires (RS-485)
20 AWG (0,5 mm2)
500 feet (150 meters)
18 AWG (0,8 mm2)
1000 feet (300
meters)
22 AWG (0,35 mm2) or
larger
1000 feet (300
meters)
(1)Micro Motion recommends using Micro Motion cable.
Micro Motion® Model D and DT Sensors Instruction Manual
9
Location continued
DT sensor junction box
Model DT sensors come with a 3-foot (1 meter) pigtail of cable
pre-installed. A junction box can be installed at the end of this pigtail.
Environmental limits
Sensor temperature limits
Temperature limits vary by sensor; refer to Table 2.
Table 2.
Temperature specifications
Sensor type
DS025
DS040
DS065
DS100
DS150
DS150Z
DS300
DS300Z
DH025
DH038
DH100
DH150
DH300
DT065
DT100
DT150
D600 with integral booster amplifier
D600 with remote booster amplifier
°F
°C
–400 to +350
–400 to +350
–400 to +350
–400 to +400
–400 to +400
+32 to +250
–400 to +400
+32 to +250
–400 to +350
–400 to +350
–400 to +400
–400 to +400
–400 to +400
+32 to +800
+32 to +800
+32 to +800
–58 to +140
–400 to +400
–240 to +177
–240 to +177
–240 to +177
–240 to +204
–240 to +204
0 to +121
–240 to +204
0 to +121
–240 to +177
–240 to +177
–240 to +204
–240 to +204
–240 to +204
0 to +426
0 to +426
0 to +426
–50 to +60
–240 to +200
For ATEX approvals, process fluid temperature can be further restricted
by ambient temperatures. For guidelines, go to www.micromotion.com/
atex.
D600 booster amplifier ambient temperature limits
Install the booster amplifier in a location that falls within the following
limits:
Ambient temperature limits between –58 to +140 °F (–50 to +60 °C).
For ATEX approvals, process fluid temperature can be further restricted
by ambient temperatures. For guidelines, go to www.micromotion.com/
atex.
Valves
10
After the sensor and transmitter have been fully installed, you must
perform the zeroing procedure. During the zeroing procedure, flow
through the sensor must be halted and the sensor tubes must be
completely full of process fluid. A shutoff valve, downstream from the
sensor, is required to halt flow during the zeroing procedure. For more
information about zeroing, see page 39.
Micro Motion® Model D and DT Sensors Instruction Manual
Location continued
Hazardous area installations
Make sure the hazardous area specified on the sensor approvals tag is
suitable for the environment in which the sensor is installed. (See
illustrations on pages 3-6.) For installation in an area that requires
intrinsic safety, refer to Micro Motion hazardous approval
documentation, shipped with the sensor or available from the Micro
Motion web site.
For hazardous installations in Europe, refer to standard EN 60079-14 if
national standards do not apply.
If you don’t have access to the World Wide Web, you can obtain an I.S.
manual by contacting the Micro Motion Customer Service Department:
• In the U.S.A., phone 1-800-522-MASS (1-800-522-6277), 24 hours
• In Canada and Latin America, phone +1 303-527-5200 (U.S.A.)
• In Asia, phone +65 6777-8211 (Singapore)
• In the U.K., phone 0870 240 1978 (toll-free)
• Outside the U.K., phone +31 (0) 318 495 555 (The Netherlands)
Micro Motion® Model D and DT Sensors Instruction Manual
11
12
Micro Motion® Model D and DT Sensors Instruction Manual
Installation
Step 2
Orientation
Keys for sensor orientation
The sensor will function properly in any orientation if the sensor flow
tubes remain filled with process fluid.
Flow direction
Micro Motion sensors measure accurately regardless of flow direction as
long as the sensor flow tubes remain filled with process fluid.
Flow direction arrow
The sensor has a flow direction arrow (see illustrations, pages 3-6) to
help you configure the transmitter for flow direction. Process fluid flowing
in the direction opposite to the flow direction arrow may cause
unexpected transmitter output unless the transmitter is configured
appropriately. For instructions on configuring the transmitter’s flow
direction parameter, refer to the transmitter instruction manual.
Vertical pipeline
If the sensor is installed in a vertical pipeline, liquids and slurries should
flow upward through the sensor. Gases may flow upward or downward.
Process fluid
Typical sensor orientations are shown in the tables on the following
pages:
• For measuring liquids, see page 14.
• For measuring gases, see page 15.
• For measuring slurries, see page 16.
Micro Motion® Model D and DT Sensors Instruction Manual
13
Orientation continued
Orientations for measuring liquids
Sensor
model
DS025
DH025
DH038
DS040
Preferred orientation for
measuring liquids
Tubes down
Horizontal pipeline
Alternative orientation for
measuring liquids
Tubes up
Horizontal pipeline
Self-draining
Flag mount
Vertical pipeline
Flow
DS065
DS100
DH100
DS150
DH150
DS300
DH300
D600
Tubes down
Horizontal pipeline
DT65
DT065
DT100
DT150
Tubes down
Horizontal pipeline
Tubes up
Horizontal pipeline
Self-draining
Flag mount
Vertical pipeline
Flow
Tubes up
Horizontal pipeline
Self-draining
Flag mount
Vertical pipeline
Flow
14
Micro Motion® Model D and DT Sensors Instruction Manual
Orientation continued
Orientations for measuring gases
Sensor
model
DS025
DH025
DH038
DS040
Preferred orientation for
measuring gases
Tubes up
Horizontal pipeline
Self-draining
Alternative orientation for
measuring gases
Flag mount
Vertical pipeline
Dry gases only
Tubes down
Horizontal pipeline
Flow
DS065
DS100
DH100
DS150
DH150
DS300
DH300
D600
Tubes up
Horizontal pipeline
Self-draining
DT65
DT065
DT100
DT150
Tubes up
Horizontal pipeline
Self-draining
Flag mount
Vertical pipeline
Dry gases only
Tubes down
Horizontal pipeline
Flow
Flag mount
Vertical pipeline
Dry gases only
Tubes down
Horizontal pipeline
Flow
Micro Motion® Model D and DT Sensors Instruction Manual
15
Orientation continued
Orientations for measuring slurries
Sensor
model
DS025
DH025
DH038
DS040
Preferred orientation for
measuring slurries
Alternative orientation for
measuring slurries
Flag mount
Vertical pipeline
Tubes up
Horizontal pipeline
Self-draining
Flow
DS065
DS100
DH100
DS150
DH150
DS300
DH300
D600
Flag mount
Vertical pipeline
DT65
DT065
DT100
DT150
Flag mount
Vertical pipeline
Tubes up
Horizontal pipeline
Self-draining
Flow
Tubes up
Horizontal pipeline
Self-draining
Flow
16
Micro Motion® Model D and DT Sensors Instruction Manual
Installation
Step 3
Mounting
Keys for sensor mounting
Use your common piping practices to minimize:
• Torque on process connections
• Bending load on process connections
Mounting any D or DT sensor
• For proper orientation, see pages 14-16
• For optional D600 mounting, see page 18
CAUTION
Using the sensor to support piping
can damage the sensor or
cause measurement error.
Do not use sensor to support pipe.
Micro Motion® Model D and DT Sensors Instruction Manual
17
Mounting continued
Conduit openings
If possible, install wiring with the conduit openings pointed downward to
reduce the risk of condensation or excessive moisture in the housing.
Otherwise, install drip legs on the cable or conduit.
Optional Model D600 mounting
When installing a Model D600 in a high-vibration area, additional
support may be added if desired. Use the D600 snub-mount connector
with vibration isolator to help support the sensor. See illustration, below.
Typically, the snub-mount connector is used when the D600 is installed
in the flag-mount orientation (in a vertical pipeline), as shown below.
Model D600 mounting with snub-mount connector
D600 in flag-mount orientation can use
snub connector for added support in
high-vibration installations
Snub-mount connector
• Connect support only to the factory-supplied
rubber snub-mount connector
• Attach with 1/2"-13 UNC bolt
• Bolt may penetrate isolator to 1 1/2" (40 mm)
DT sensors
18
Model DT sensors come with a 3-foot (1-meter) pigtail of cable
pre-installed. A junction box can be connected at the end of this pigtail.
The junction box is used for connecting the cable from the transmitter.
Micro Motion® Model D and DT Sensors Instruction Manual
Installation
Step 4
Wiring
Hazardous area installations
The following warning applies to hazardous area installations
WARNING
Failure to comply with requirements for intrinsic
safety in a hazardous area could result in an
explosion.
• Make sure the hazardous area specified on the sensor
approvals tag is suitable for the environment in which the
sensor is installed. See illustrations, pages 3-6.
• For installation in an area that requires intrinsic safety,
refer to Micro Motion hazardous approval installation
instructions.
• For hazardous area installations in Europe, refer to
standard EN 60079-14 if national standards do not apply.
Model D sensor junction box
Most Model D sensors are shipped with a junction box for wiring. There
are two types of junction boxes: one for the D600 sensor, one for all the
other D sensors.
• The D600 junction box is different than the junction box for other D
sensors. D600 sensors are also available with a core processor. For
more information on the D600 sensor, see page 24.
• Model DT sensors can use a junction box. For more information on the
DT sensor junction box, see page 20.
For Model D sensors (except the DT series and D600):
• If it if not already installed, install the junction box on the sensor,
following the wiring instructions on the junction box.
• If possible, install wiring with the junction-box opening pointed
downward, or with a drip leg in the conduit or cable, to reduce the risk
of condensation or excessive moisture in the junction box. See
illustration on page 20.
• Next, follow the guidelines in Connecting and shielding 9-wire cable to
wire the sensor to the transmitter.
Micro Motion® Model D and DT Sensors Instruction Manual
19
Wiring continued
Model D sensor junction box
3/4" NPT female
conduit opening
Drip leg in
conduit or cable
Model DT sensor cable and
junction box
Model DT sensors can use a junction box. Model DT sensors come with
a 3-foot (1 meter) pigtail of pre-installed cable and a 3-foot (1 meter)
piece of conduit that needs to be fitted over the pre-installed cable. See
illustration on page 21.
• Slide the conduit over the pre-installed cable.
• Screw the conduit fitting end into the sensor.
The other end of the conduit can be connected to a user-supplied
junction box or directly to a transmitter.
• If the conduit is connected to a user-supplied junction box, connect the
wires to the terminals on the junction box. If possible, install wiring with
junction-box openings pointed downward, or with drip legs in the
conduits or cables, to reduce the risk of condensation or excessive
moisture in the junction box. Next, connect the 9-wire cable from the
junction box to the transmitter by following the instructions in
Connecting and shielding 9-wire cable.
• If the conduit is connected directly to a transmitter, refer to the wiring
instructions in the transmitter Quick Reference Guide.
20
Micro Motion® Model D and DT Sensors Instruction Manual
Wiring continued
Model DT sensor cable
3 ft. (1 m) factory-supplied flex conduit
• Liquid tight to meet CE requirements
for European installations
• Permanently attached to sensor
1/2" NPT conduit fitting
• Factory-supplied fitting
• Ensure 360 ° contact
Drip leg
1/2" NPT
conduit fitting
Grounding screw
Connecting and shielding 9-wire
cable
A 9-wire connection is required between the junction box and the core
processor or transmitter. Micro Motion offers two types of 9-wire cable:
• Shielded
• Armored
Both cable types contain shield drain wires. You may also use jacketed
cable with conduit.
Cable connections to sensor and transmitter
The wiring procedure is the same for the sensor and transmitter. Refer to
the wiring diagrams on the following pages, and follow these steps:
CAUTION
Failure to seal the sensor and transmitter housings
could cause a short circuit, which would result in
measurement error or flowmeter failure.
•
•
•
•
Ensure integrity of gaskets and O-rings.
Grease all O-rings before sealing.
Install drip legs in cable or conduit.
Seal all conduit openings.
Micro Motion® Model D and DT Sensors Instruction Manual
21
Wiring continued
1. Locate the wires by color and terminal number.
2. Insert the stripped ends of the individual wires into the terminal
blocks. No bare wires should remain exposed.
• At the sensor, connect wiring inside the junction box.
• At the transmitter, connect wiring to the transmitter’s intrinsically
safe terminals for sensor wiring.
3. Tighten the screws to hold the wires in place.
4. Ensure integrity of gaskets, then tightly close and seal the
junction-box cover and all housing covers on the transmitter.
CAUTION
Drain wires from a 9-wire cable must be clipped at the
sensor end and insulated with heat-shrink wrapping.
Failure to properly terminate drain wires will cause
sensor error.
Model D or DT sensor (except D600) wiring to Model 3500 with I/O cable
Flowmeter
cable
Model 3500
with I/O cable
Black
(Drains from all
wire sets)
Brown
Red
Orange
Yellow
Green
Blue
Violet
Gray
White
Brown
Red
Clip drain wire back
Green
White
Clip drain wire back
Blue
Gray
Clip drain wire back
Orange
Violet
Yellow
Clip drain wire back
For DT sensor junction box
information, see page 20.
Brown
Red
Brown
Red
Orange
Yellow
Green
Blue
Violet
Gray
Not approved for intrinsic safety
in Europe
Maximum cable length 1000 ft. (300 m)
Green
White
Blue
Gray
Orange
Violet
Yellow
Prepare cable in accordance with the instructions
that are shipped with the cable
White
Black (drains)
Model D or DT
sensor terminals
Connect outer
braid of shielded or
armored cable
Model D or DT sensor (except D600) wiring to Model 3500 with screw or solder terminals
Model D or DT
sensor terminals
Flowmeter
cable
Model 3500
with screw-type or
solder-tail terminals
Maximum cable length 1000 ft. (300 m)
Black
(Drains from all
wire sets)
Brown
Red
Orange
Yellow
Green
Blue
Violet
Gray
White
For DT sensor junction box
information, see page 20.
22
Brown
Red
Clip drain wire back
Green
White
Clip drain wire back
Blue
Gray
Clip drain wire back
Orange
Violet
Yellow
Clip drain wire back
Brown
Red
Yellow
Violet
Green
Blue
Brown
c4
c6
c8
c10
c12
a4
a6
a8
a10
a12
Black (Drains)
Orange
White
Gray
Red
Green
White
Blue
Gray
Orange
Violet
Yellow
Prepare cable in accordance with the instructions
that are shipped with the cable
Micro Motion® Model D and DT Sensors Instruction Manual
Wiring continued
Model D or DT sensor (except D600) wiring to Model 3700
Model D or DT
sensor terminals
Flowmeter
cable
Model 3700
terminals
Maximum cable length 1000 ft. (300 m)
Black
(Drains from all
wire sets)
Brown
Red
Orange
Yellow
Green
Blue
Violet
Gray
White
Brown
Red
Clip drain wire back
Green
White
Clip drain wire back
Blue
Gray
Clip drain wire back
Orange
Violet
Yellow
Clip drain wire back
Red
Brown
Yellow
Black (drains)
Violet
Orange
Green
White
Blue
Gray
Brown
Red
Green
White
Blue
Gray
Orange
Violet
Yellow
Prepare cable in accordance with the instructions
that are shipped with the cable
For DT sensor junction box
information, see page 20.
Model D or DT sensor (except D600) wiring to RFT9739 field-mount transmitter
Model D or DT
sensor terminals
Flowmeter
cable
Field-mount
RFT9739 terminals
Maximum cable length 1000 ft. (300 m)
Brown
Orange
Green
Violet
White
Black
(Drains from all
wire sets)
Brown
Red
Orange
Yellow
Green
Blue
Violet
Gray
White
Brown
Red
Clip drain wire back
Green
White
Clip drain wire back
Blue
Gray
Clip drain wire back
Orange
Violet
Yellow
Clip drain wire back
For DT sensor junction-box
information, see page 20.
Brown
Red
9 7531
Green
White
Blue
Gray
Orange
Violet
Yellow
Prepare cable in accordance with the instructions
that are shipped with the cable
8 6420
Gray
Blue
Yellow
Red
Black (Drains)
Model D or DT sensor (except D600) wiring to RFT9739 rack-mount transmitter
Model D or DT
sensor terminals
Flowmeter
cable
Rack-mount
RFT9739 terminals
Maximum cable length 1000 ft. (300 m)
CN1
Black
(Drains from all
wire sets)
Brown
Red
Orange
Yellow
Green
Blue
Violet
Gray
White
For DT sensor junction box
information, see page 20.
Brown
Red
Clip drain wire back
Green
White
Clip drain wire back
Blue
Gray
Clip drain wire back
Orange
Violet
Yellow
Clip drain wire back
Brown
Red
Red
Yellow
Orange
White
Gray
B2
B4
B6
B8
B10
Z2
Z4
Z6
Z8
Z10
Brown
Black (Drains)
Violet
Green
Blue
Green
White
Blue
Gray
Orange
Violet
Yellow
Prepare cable in accordance with the instructions
that are shipped with the cable
Micro Motion® Model D and DT Sensors Instruction Manual
B Z
23
Wiring continued
Model D or DT sensor (except D600) wiring to RFT9712 transmitter
Model D or DT
sensor terminals
Flowmeter
cable
RFT9712
terminals
Maximum cable length 1000 ft. (300 m)
Brown
Orange
Green
Violet
White
Black
(Drains from all
wire sets)
Brown
Red
Clip drain wire back
Green
White
Clip drain wire back
Blue
Gray
Clip drain wire back
Orange
Violet
Yellow
Clip drain wire back
Brown
Red
Orange
Yellow
Green
Blue
Violet
Gray
White
For DT sensor junction box
information, see page 20.
Brown
Red
9 7531
Green
White
8 6420
Blue
Gray
Orange
Violet
Yellow
Gray
Blue
Yellow
Red
Black (Drains)
Prepare cable in accordance with the instructions
that are shipped with the cable
Model D sensor or DT (except D600) wiring to Model 1700 or 2700 transmitter
Model D or DT
sensor junction box
terminals
Brown
Red
Orange
Yellow
Green
Blue
Violet
Gray
White
Flowmeter
cable
Field-mount Model
2700 terminals
Maximum cable length 60 ft. (20 m)
Black
(Drains from all
wire sets)
Brown
Red
Clip drain wire back
Green
White
Clip drain wire back
Blue
Gray
Clip drain wire back
Orange
Violet
Yellow
Clip drain wire back
Brown
Red
Green
White
Ground screw
Black
Brown
Violet
Yellow
Red
Green
White
Blue
Gray
Orange
Violet
Yellow
Blue
Gray
Orange
Prepare cable in accordance with the
instructions that are shipped with the cable.
Do not allow shields to contact sensor
junction box.
Model D sensor wiring (except the D600) to IFT9701* and Model 5300 transmitters
Model D sensor
terminals
Flowmeter
cable
IFT9701 or
Model 5300 terminals
Maximum cable length 1000 ft. (300 m)
Black
(Drains from all
wire sets)
Brown
Red
Clip drain wire back
Green
White
Clip drain wire back
Blue
Gray
Clip drain wire back
Orange
Violet
Yellow
Clip drain wire back
Brown
Red
Blue
Gray
Orange
Violet
Yellow
Prepare cable in accordance with the instructions
that are shipped with the cable
10
11
12
GND
Brown
Red
Orange
Yellow
Green
Blue
Violet
Gray
White
Green
White
Black (Drains,
remote-mount only)
Brown
Red
Orange
Yellow
Green
Blue
Violet
Gray
White
* Model D600 and DT sensors cannot be used with IFT9701 transmitters
24
Micro Motion® Model D and DT Sensors Instruction Manual
Wiring continued
D600 sensor
For wiring between the sensor and transmitter, there are two options:
junction box or core processor.
• For wiring instructions from junction box to transmitter, see page 29.
• For wiring from core processor to transmitter or for direct host, see
page 32.
The D600 also requires wiring to an AC power supply for the integral and
remote version of the booster amplifier. Between 85-250 VAC of power
must be provided. See pages 26-27.
The remote version of the booster amplifier requires wiring to the sensor
and wiring of the drive wires. See page 28.
The sensor is shipped with 16 feet (5 meters) of 9-wire cable for
connecting from the remote booster amplifier to the intrinsically safe
junction box located on the sensor. For longer cable lengths, up to 60
feet (20 meters), contact Micro Motion.
CAUTION
Improper installation of wiring could cause
measurement error or sensor failure.
• Shut off power before installing power-supply wiring.
• Follow all instructions to ensure sensor will operate
correctly.
• Install drip legs in conduit or cable.
• Seal all conduit openings.
• Ensure integrity of gaskets, and fully tighten sensor
junction-box cover, core processor cover, and all
transmitter housing covers.
WARNING
Explosion Hazard
In a hazardous area:
• Do not open booster amplifier housing cover while
booster amplifier is energized.
• Wait at least 30 minutes after power is shut off before
opening.
Micro Motion® Model D and DT Sensors Instruction Manual
25
Wiring continued
Power supply wiring to the
remote booster amplifier
• Remove screw and terminal cover before installing wiring. Re-install
cover before operating.
• Provide 85-250 VAC power to terminals L2 and L1 as shown in the
diagram below.
• This unit is provided with an external terminal for supplementary
bonding connections. This terminal is for use where local codes or
authorities permit or require such connections.
Remote booster amplifier power-supply wiring
Screw and terminal cover
Chassis ground
85-250 VAC
50/60 Hz
N/L2
L/L1
Supplementary bonding connection
26
Micro Motion® Model D and DT Sensors Instruction Manual
Wiring continued
Power supply wiring to the
integral booster amplifier
Provide 85-250 VAC power to terminals L2 and L1 as shown in the
diagram below.
This unit is provided with an external terminal for supplementary
bonding connections. This terminal is for use where local codes or
authorities permit or require such connections.
Integral booster amplifier power-supply wiring
85-250 VAC
50/60 Hz
N/L2
L/L1
Power supply
ground
Wiring
compartment
Supplementary bonding connection
Micro Motion® Model D and DT Sensors Instruction Manual
27
Wiring continued
Wiring from the remote booster
amplifier to the sensor
For intrinsically safe junction box wiring (see left side of figure below):
• Terminate factory-supplied 9-wire cable. Match wire colors to the
corresponding terminal wire colors from the remote booster amplifier.
• Orange wire in cable does not have corresponding orange wire from
sensor. Note: Terminate the orange wire in cable to the terminal shown
in diagram below.
• Clip remaining wires (brown and red) of cable (intrinsically safe side
only) and insulate.
For explosion-proof junction box wiring (see right side of figure below):
Install user-supplied drive wiring, shielded 18 AWG (0,75 mm2) 2-wire
cable, from remote booster amplifier terminals 1 and 2 to sensor
terminals 1 and 2. (See figure on page 29 for wiring at booster amplifier.)
Remote booster amplifier wiring to sensor
Red (factory wired)
Violet
Yellow
Orange
Brown (factory wired)
2
1
Blue
Gray
White
Green
Intrinsically safe wiring
Explosion-proof wiring
User-supplied drive wiring,
18 AWG (0,75 mm2). See
page 29 for connections at
remote booster amplifier.
Factory-supplied 9-wire
cable for intrinsically safe
wiring (RTD and pickoffs)
Remote booster amplifier
Factory-supplied drive
wiring
28
Micro Motion® Model D and DT Sensors Instruction Manual
Wiring continued
Remote booster amplifier drive wiring
Remove screw and terminal cover
before installing wiring. Re-install Factory-supplied 9-wire
cover before operating
cable for intrinsically
safe wiring
(RTD and pickoffs)
Connection diagram
From remote
To sensor
booster amp
explosion-proof
terminal
J-box terminal
1
1
2
2
Wiring to
transmitter
Wiring to a transmitter (D600
sensor with junction box)
The instructions in this section explain how to connect a fully prepared
9-wire Micro Motion flowmeter cable to the sensor and transmitter.
• The procedure for preparing Micro Motion cable and cable glands is
described in the instructions that are shipped with the cable.
• Install cable and wiring to meet local code requirements.
Cable connections to sensor and transmitter
The wiring procedure is the same for the sensor and transmitter. Refer to
the wiring diagrams on the following pages, and follow these steps:
CAUTION
Failure to seal the sensor and transmitter housings
could cause a short circuit, which would result in
measurement error or flowmeter failure.
•
•
•
•
Ensure integrity of gaskets and O-rings.
Grease all O-rings before sealing.
Install drip legs in cable or conduit.
Seal all conduit openings.
Micro Motion® Model D and DT Sensors Instruction Manual
29
Wiring continued
1. Locate the wires by color and terminal number.
2. Insert the stripped ends of the individual wires into the terminal
blocks. No bare wires should remain exposed.
• At the sensor, connect wiring inside the junction box.
• At the transmitter, connect wiring to the transmitter’s intrinsically
safe terminals for sensor wiring.
3. Tighten the screws to hold the wires in place.
4. Ensure integrity of gaskets, then tightly close and seal the
junction-box cover and all housing covers on the transmitter.
CAUTION
Drain wires from a 9-wire cable must be clipped at the
sensor end and insulated with heat-shrink wrapping.
Failure to properly terminate drain wires will cause
sensor error.
Model D600 wiring to Model 3500 with I/O cable
Model 3500
with I/O cable
Maximum cable length 1000 ft. (300 m)
Not approved for intrinsic safety
in Europe
Black
(Drains from all
wire sets)
Green
White
Brown
Brown
Red
Clip drain wire back
Green
White
Clip drain wire back
Blue
Gray
Clip drain wire back
Orange
Violet
Yellow
Clip drain wire back
Violet
Yellow
Orange
Blue
Gray
Red
Brown
Red
Brown
Red
Orange
Yellow
Green
Blue
Violet
Gray
Flowmeter
cable
Green
White
Blue
Gray
Orange
Violet
Yellow
Prepare cable in accordance with the
instructions that are shipped with the cable.
Do not allow shields to contact sensor
junction box.
White
Black (drains)
Model D600 sensor
junction box
terminals
Connect outer
braid of shielded
or armored cable
Model D600 wiring to Model 3500 with screw or solder terminals
Model D600 sensor
junction box
terminals
Model 3500
with screw-type or
solder-tail terminals
Maximum cable length 1000 ft. (300 m)
Black
(Drains from all
wire sets)
Green
White
Brown
Brown
Red
Clip drain wire back
Green
White
Clip drain wire back
Blue
Gray
Clip drain wire back
Orange
Violet
Yellow
Clip drain wire back
Violet
Yellow
Orange
Blue
Gray
Red
30
Flowmeter
cable
Brown
Red
Green
White
Yellow
Violet
Green
Blue
Brown
c4
c6
c8
c10
c12
a4
a6
a8
a10
a12
Black (Drains)
Orange
White
Gray
Red
Blue
Gray
Orange
Violet
Yellow
Prepare cable in accordance with the
instructions that are shipped with the cable.
Do not allow shields to contact sensor
junction box.
Micro Motion® Model D and DT Sensors Instruction Manual
Wiring continued
Model D600 wiring to Model 3700
Model D600 sensor
junction box
terminals
Flowmeter
cable
Model 3700
terminals
Maximum cable length 1000 ft. (300 m)
Black
(Drains from all
wire sets)
Green
White
Brown
Brown
Red
Clip drain wire back
Green
White
Clip drain wire back
Blue
Gray
Clip drain wire back
Orange
Violet
Yellow
Clip drain wire back
Violet
Yellow
Orange
Blue
Gray
Red
Red
Brown
Yellow
Black (drains)
Violet
Orange
Green
White
Blue
Gray
Brown
Red
Green
White
Blue
Gray
Orange
Violet
Yellow
Prepare cable in accordance with the
instructions that are shipped with the cable.
Do not allow shields to contact sensor
junction box.
Model D600 wiring to RFT9739 field-mount transmitter
Model D600 sensor
junction box
terminals
Flowmeter
cable
Field-mount
RFT9739 terminals
Maximum cable length 1000 ft. (300 m)
Brown
Orange
Green
Violet
White
Black
(Drains from all
wire sets)
Green
White
Brown
Brown
Red
Clip drain wire back
Green
White
Clip drain wire back
Blue
Gray
Clip drain wire back
Orange
Violet
Yellow
Clip drain wire back
Violet
Yellow
Orange
Blue
Gray
Red
Brown
Red
Green
White
Blue
Gray
Orange
Violet
Yellow
Prepare cable in accordance with the
instructions that are shipped with the cable.
Do not allow shields to contact sensor
junction box.
Gray
Blue
Yellow
Red
Black (Drains)
Model D600 wiring to RFT9739 rack-mount transmitter
Model D600 sensor
junction box
terminals
Flowmeter
cable
Rack-mount
RFT9739 terminals
Maximum cable length 1000 ft. (300 m)
Black
(Drains from all
wire sets)
Green
White
Brown
Brown
Red
Clip drain wire back
Green
White
Clip drain wire back
Blue
Gray
Clip drain wire back
Orange
Violet
Yellow
Clip drain wire back
Violet
Yellow
Orange
Blue
Gray
Red
Brown
Red
Green
White
Red
Yellow
Orange
White
Gray
B2
B4
B6
B8
B10
Z2
Z4
Z6
Z8
Z10
Brown
Black (Drains)
Violet
Green
Blue
Blue
Gray
Orange
Violet
Yellow
Prepare cable in accordance with the
instructions that are shipped with the cable.
Do not allow shields to contact sensor
junction box.
Micro Motion® Model D and DT Sensors Instruction Manual
31
Wiring continued
Model D600 wiring to RFT9712 transmitter
Model D600 sensor
terminals
Flowmeter
cable
RFT9712
terminals
Maximum cable length 1000 ft. (300 m)
Brown
Orange
Green
Violet
White
Black
(Drains from all
wire sets)
Green
White
Brown
Brown
Red
Clip drain wire back
Green
White
Clip drain wire back
Blue
Gray
Clip drain wire back
Orange
Violet
Yellow
Clip drain wire back
Violet
Yellow
Orange
Blue
Gray
Red
Brown
Red
Green
White
9 7531
9 7531
Blue
Gray
Orange
Violet
Yellow
8 6420
8 6420
Gray
Blue
Yellow
Red
Black (Drains)
Prepare cable in accordance with the instructions
that are shipped with the cable
Model D600 sensor wiring to the 9-wire Model 1700 or 2700 transmitter
Model D600 sensor
junction box
terminals
Flowmeter
cable
Field-mount Model
2700 terminals
Maximum cable length 60 ft. (20 m)
Black
(Drains from all
wire sets)
Green
White
Brown
Brown
Red
Clip drain wire back
Green
White
Clip drain wire back
Blue
Gray
Clip drain wire back
Orange
Violet
Yellow
Clip drain wire back
Violet
Yellow
Orange
Blue
Gray
Red
Core processor to a 4-wire
remote transmitter or remote
host
Ground screw
Black
Brown
Red
Green
White
Blue
Gray
Orange
Violet
Yellow
Prepare cable in accordance with the
instructions that are shipped with the cable.
Do not allow shields to contact sensor
junction box.
Brown
Violet
Yellow
Red
Green
White
Blue
Gray
Orange
To connect wiring at the core processor:
1. Use one of the following methods to shield the wiring from the core
processor to the remote transmitter:
• If you are installing unshielded wiring in continuous metallic conduit
that provides 360° termination shielding for the enclosed wiring, go
to Step 6, page 35.
• If you are installing user-supplied cable gland with shielded cable or
armored cable, terminate the shields in the cable gland. Terminate
both the armored braid and the shield drain wires in the cable gland.
• If you are installing a Micro Motion-supplied cable gland at the core
processor housing:
- Prepare the cable and apply shielded heat shrink as described
below. The shielded heat shrink provides a shield termination
suitable for use in the gland when using cable whose shield
consists of foil and not a braid. Proceed to Step 2.
32
Micro Motion® Model D and DT Sensors Instruction Manual
Wiring continued
- With armored cable, where the shield consists of braid, prepare the
cable as described below, but do not apply heat shrink. Proceed to
Step 2.
2. Remove the cover from the core processor.
3. Slide the gland nut and the clamping insert over the cable.
4 1/2 in
(114 mm)
3/4 in
(19 mm)
Gland nut
Gland clamping
insert
7/8 in
(22 mm)
Shielded heat shrink
7/8 in
(22 mm)
Gland body
4. For connection at the core processor housing, prepare shielded cable
as follows (for armored cable, omit steps d, e, f, and g):
a. Strip 4 1/2 inches (114 mm) of cable jacket.
b. Remove the clear wrap that is inside the cable jacket, and remove
the filler material between the wires.
c. Remove the foil shield that is around the insulated wires, leaving
3/4 inch (19 mm) of foil or braid and drain wires exposed, and
separate the wires.
d. Wrap the shield drain wire(s) around the exposed foil twice. Cut off
the excess wire.
Shield drain wire(s) wrapped twice around exposed shield foil
e. Place the EMI-shielded heat shrink over the exposed shield drain
wire(s). The tubing should completely cover the drain wires.
f. Without burning the cable, apply heat (250 °F or 120 °C) to shrink
the tubing.
Micro Motion® Model D and DT Sensors Instruction Manual
33
Wiring continued
Shielded heat shrink completely covers exposed drain wires
g. Position gland clamping insert so the interior end is flush with the
heat shrink.
h. Fold the cloth shield or braid and drain wires over the clamping
insert and approximately 1/8 inch (3 mm) past the O-ring.
i. Install the gland body into the core processor housing conduit
opening.
5. Insert the wires through the gland body and assemble the gland by
tightening the gland nut.
6. Identify the wires in the 4-wire cable. The 4-wire cable supplied by
Micro Motion consists of one pair of 18 AWG (0,75 mm2) wires (red
and black), which should be used for the VDC connection, and one
pair of 22 AWG (0,35 mm2) wire (green and white), which should be
used for the RS-485 connection. Connect the four wires to the
numbered slots on the core processor, matching corresponding
numbered terminals on the transmitter.
34
Micro Motion® Model D and DT Sensors Instruction Manual
Wiring continued
Power supply +
(Red wire)
RS-485B
(Green wire)
RS-485A
(White wire)
Power supply –
(Black wire)
Core processor housing internal ground screw
• For connections to earth ground when sensor cannot be grounded via
piping and local codes require ground connections to be made internally
• Do not connect shield drain wires to this terminal
7. Reattach the core processor housing.
WARNING
Twisting the core processor will damage the sensor.
Do not twist the core processor.
8. Shield and shield drain wire(s) should not be grounded at the
transmitter.
• For wiring at the transmitter, see the transmitter Quick Reference
Guide (QRG).
• If you are connecting to an MVDSolo with MVD Direct Connect™ I.S.
barrier supplied by Micro Motion, the barrier supplies power to the
core processor. Refer to the barrier documentation to identify the
terminals at the barrier.
• If you are connecting to an MVDSolo without I.S. barrier:
- Connect the VDC wires from the core processor (see figure on
page 36) to an independent power supply. This power supply must
connect only to the core processor. A recommended power supply
is the SDN series of 24-VDC power supplies manufactured by
Sola/Hevi-Duty.
- Do not ground either connection of the power supply.
- Connect the RS-485 wires from the core processor (see figure
below) to the RS-485 terminals at the remote host. Refer to the
vendor documentation to identify the terminals.
Micro Motion® Model D and DT Sensors Instruction Manual
35
Wiring continued
Core processor terminals
Power supply +
RS-485B
RS-485A
Power supply –
Sensor grounding
Ground the sensor and transmitter independently.
CAUTION
Improper grounding could cause measurement error.
To reduce the risk of measurement error:
• Ground the flowmeter to earth, or follow ground network
requirements for the facility.
• For installation in an area that requires intrinsic safety,
refer to Micro Motion hazardous approval documentation,
shipped with the sensor or available from the Micro
Motion web site.
• For hazardous area installations in Europe, refer to
standard EN 60079-14 if national standards do not apply.
The sensor can be grounded via the piping if the joints in the pipeline are
ground-bonded. If the sensor is not grounded via the piping, connect a
ground wire to the internal or external grounding screw, which is located
on the core processor or junction box.
If national standards are not in effect, follow these guidelines:
• Use copper wire, 14 AWG (2,5 mm2) or larger wire size for grounding.
• Keep all ground leads as short as possible, less than 1 ohm
impedance.
• Connect ground leads directly to earth, or follow plant standards.
Refer to the transmitter documentation for instructions on grounding the
transmitter.
36
Micro Motion® Model D and DT Sensors Instruction Manual
Wiring continued
Sensor grounding screw
Model D600
sensors
Micro Motion® Model D and DT Sensors Instruction Manual
Other Model D
sensors
Model DT
sensors
37
38
Micro Motion® Model D and DT Sensors Instruction Manual
Installation
Step 5
Startup
Zeroing
After the flowmeter has been fully installed, you must perform the
zeroing procedure. Flowmeter zeroing establishes flowmeter response
to zero flow and sets a baseline for flow measurement. Refer to the
transmitter instruction manual for information on performing the zeroing
procedure.
Configuration, calibration, and
characterization
You can use the transmitter to configure, calibrate, and characterize the
meter. For more information, refer to the transmitter instruction manuals.
The following information explains the difference between configuration,
calibration, and characterization. Certain parameters might require
configuration even when calibration is not necessary.
Configuration parameters include such items as flowmeter tag,
measurement units, flow direction, damping values, and slug flow
parameters. If requested at time of order, the meter is configured at the
factory according to customer specifications.
Calibration accounts for the flowmeter’s sensitivity to flow, density, and
temperature. Calibration is done at the factory.
Characterization is the process of entering calibration factors for flow,
density, and temperature directly into transmitter memory, instead of
performing field calibration procedures. Calibration factors can be found
on the sensor serial number tag and on the certificate that is shipped
with the sensor.
For instructions about flowmeter configuration, calibration, and
characterization, see the manual that was shipped with the transmitter.
If the sensor and transmitter are ordered together as a Coriolis
flowmeter, the factory has characterized the meter — no additional
characterization is necessary. If either the sensor or transmitter is
replaced, characterization is required.
Micro Motion® Model D and DT Sensors Instruction Manual
39
Startup continued
Customer Service
The Micro Motion Customer Service Department is available for
assistance with flowmeter startup if you experience problems you
cannot solve on your own.
If possible, provide us with the model numbers and/or serial numbers of
your Micro Motion equipment, which will assist us in answering your
questions.
• In the U.S.A., phone 1-800-522-MASS (1-800-522-6277), 24 hours
• In Canada and Latin America, phone +1 303-527-5200 (U.S.A.)
• In Asia, phone +65 6777-8211 (Singapore)
• In the U.K., phone 0870 240 1978 (toll-free)
• Outside the U.K., phone +31 (0) 318 495 555 (The Netherlands)
• Or visit our website at www.micromotion.com.
40
Micro Motion® Model D and DT Sensors Instruction Manual
Troubleshooting
General information
Most troubleshooting is performed at the transmitter. However, the
following troubleshooting topics are described in this manual:
• Zero drift, page 42
• Erratic flow rate, page 43
• Inaccurate flow rate or batch total, page 44
• Inaccurate density reading, page 45
• Inaccurate temperature reading, page 46
If you cannot find the problem you are looking for, check the transmitter
instruction manual.
To troubleshoot the flowmeter, you might need a digital multimeter
(DMM) or similar device, the transmitter display, if it has one, and one of
the following:
• HART Communicator
• ProLink or ProLink II software
• AMS software
• Modbus master controller (RFT9739, Series 1000, or Series 2000)
• Fieldbus host controller (Series 1000 or Series 2000)
• Profibus-PA host controller (Series 1000 or Series 2000)
If you cannot find the problem you are looking for, or if troubleshooting
fails to reveal the problem, contact the Micro Motion Customer Service
Department.
If possible, provide us with the model numbers and/or serial numbers of
your Micro Motion equipment, which will assist us in answering your
questions.
• In the U.S.A., phone 1-800-522-MASS (1-800-522-6277), 24 hours
• In Canada and Latin America, phone +1 303-527-5200 (U.S.A.)
• In Asia, phone +65 6777-8211 (Singapore)
• In the U.K., phone 0870 240 1978 (toll-free)
• Outside the U.K., phone +31 (0) 318 495 555 (The Netherlands)
Micro Motion® Model D and DT Sensors Instruction Manual
41
Troubleshooting continued
Zero drift
Symptom
The flowmeter indicates the process fluid is flowing while flow is
stopped; or indicates a flow rate that does not agree with a reference
rate at low flow, but does agree at higher flow rates.
Troubleshooting instructions
To troubleshoot zero drift, you will need one of the communications
devices listed on page 46 or a transmitter with a display. Refer to the
table below for the necessary steps to troubleshoot zero drift.
Table 1.
Troubleshooting zero drift
Procedure
1. Check for leaking valves and seals
Instructions
What to do next
• If no leaks are found, go to step 2
• If leaks are found, eliminate them, then go to step 15
2. Check the flow units
See page 46
• If the flow units are OK, go to step 3
• If the flow units are wrong, change them, then go to step 15
3. Make sure the flowmeter was
zeroed properly
See page 39
• If the flowmeter was zeroed properly, go to step 4
• If the flowmeter was not zeroed properly, zero it, then go
to step 15
4. Check for the proper flow
calibration factor
See page 49
• If the flow cal factor is correct, go to step 5
• If the flow cal factor is incorrect, change it, then go to step 15
5. Check the damping value
See page 50
• If the damping value is OK, go to step 6
• If the damping value is too low, change it, then go to step 15
6. Check for two-phase flow
See page 53
• If there is no two-phase flow, go to step 7
• If there is two-phase flow, fix the problem, then go to step 15
7. Check for moisture in the sensor
junction box
See page 52
• If there is no moisture present, go to step 8
• If there is moisture in the junction box, dry out and seal the
junction box, then go to step 15
8. Check for faulty or improperly
installed flowmeter wiring
See page 47
• If the wiring is OK, go to step 9
• If the wiring is faulty, fix or replace it, then go to step 15
9. Check for faulty or improperly
installed grounding
See page 51
• If the grounding is OK, go to step 10
• If the grounding is incorrect or faulty, fix it, then go to step 15
10. Check for mounting stress on the
sensor
See page 53
• If the sensor mount is OK, go to step 11
• If there are mounting stresses, fix it, then go to step 15
11. Check for vibration or crosstalk
See page 53
• If there is no vibration or crosstalk, go to step 12
• If there is vibration or crosstalk, eliminate it, then go to
step 15
12. Make sure the sensor is oriented
properly
See page 13
• If the sensor is oriented properly, go to step 13
• If the sensor is not oriented properly, change the orientation,
then go to step 15
13. Check for plugging or build-up on
the sensor flow tubes
See page 54
• If the tubes are not plugged, go to step 14
• If there is plugging or build-up, clear the tubes, then go to
step 15
14. Check for RF interference
See page 51
• If there is no interference, or the source cannot be detected,
go to step 16
• If there is interference, eliminate it, then go to step 15
15. Check again for zero drift
16. Contact Micro Motion
42
• If there is no longer any zero drift, you’ve solved the problem
• If the zero drifts again, start over at step 3 or go to step 16
Phone numbers are
listed on page 41
Micro Motion® Model D and DT Sensors Instruction Manual
Troubleshooting continued
Erratic flow rate
Symptom
The flowmeter indicates the flow rate is varying, even though it is steady.
Troubleshooting instructions
To troubleshoot an erratic flow rate, you will need one of the
communications devices listed on page 46 or a transmitter with a
display. Refer to the table below for the necessary steps to troubleshoot
an erratic flow rate.
Table 2.
Troubleshooting erratic flow rate
Procedure
1. Check for erratic flow rate at the
transmitter
Instructions
See page 47
What to do next
• If the signal is stable at the transmitter, go to step 2
• If the signal is erratic at the transmitter, go to step 4
2. Check for faulty output wiring
See page 47
• If the output wiring is OK, go to step 3
• If the output wiring is faulty, repair or replace it, then go to
step 13
3. Check the receiving device for
malfunctions
See instruction
manual for the device
• If the receiving device is OK, go to step 4
• If the receiving device is faulty, contact the manufacturer
4. Check the flow units
See page 46
• If the flow units are OK, go to step 5
• If the flow units are wrong, change them, then go to step 13
5. Check the damping value
See page 50
• If the damping value is OK, go to step 6
• If the damping value is too low, change it, then go to step 13
6. Check for stable drive gain
See page 50
• If the drive gain is stable, go to step 7
• If the drive gain is not stable, go to step 11
7. Check for a stable density reading
See page 50
• If the density reading is stable, go to step 8
• If the density reading is not stable, go to step 11
8. Check for faulty or improperly
installed flowmeter wiring
See page 47
• If the flowmeter wiring is OK, go to step 9
• If the flowmeter wiring is incorrect or faulty, fix or replace it,
then go to step 13
9. Check for faulty or improperly
installed grounding
See page 51
• If the grounding is OK, go to step 10
• If the grounding is incorrect or faulty, fix it, then go to step 13
10. Check for vibration or crosstalk
See page 53
• If there is no vibration or crosstalk, go to step 11
• If there is vibration or crosstalk, eliminate it, then go to
step 13
11. Check for two-phase flow
See page 53
• If there is no two-phase flow, go to step 12
• If there is two-phase flow, fix the problem, then go to step 13
12. Check for plugging or build-up on
the sensor flow tubes
See page 54
• If the tubes are not plugged, go to step 14
• If there is plugging or build-up, clear the tubes, then go to
step 13
13. Check again for erratic flow rate
See page 47
• If the signal is no longer erratic, you’ve solved the problem
• If the signal is still erratic, start over at step 1 or go to step 14
14. Contact Micro Motion
Phone numbers are
listed on page 41
Micro Motion® Model D and DT Sensors Instruction Manual
43
Troubleshooting continued
Inaccurate flow rate or batch total
Symptom
The flowmeter indicates a flow rate or batch total that does not agree
with a reference rate or total.
Troubleshooting instructions
To troubleshoot an inaccurate flow rate or batch total, you will need one
of the communications devices listed on page 46 or a transmitter with a
display. Refer to the table below for the necessary steps to troubleshoot
an inaccurate rate or total.
Table 3.
Troubleshooting inaccurate flow rate or batch total
Procedure
1. Check for the proper flow
calibration factor
Instructions
See page 49
What to do next
• If the flow cal factor is correct, go to step 2
• If the flow cal factor is incorrect, change it, then go to step 15
2. Check the flow units
See page 46
3. Make sure the flowmeter was
zeroed properly
See page 39
•
•
•
•
4. Is the flow measurement
configured for mass or volume?
See page 46
• If the configuration is for mass, go to step 6
• If the configuration is for volume, go to step 5
5. Check for the proper density
calibration factor
See page 49
• If the dens cal factor is correct, go to step 6
• If the dens cal factor is incorrect, change it, then go to
step 15
6. Make sure the density reading is
accurate for the fluid
See page 50
• If the density reading is correct, go to step 7
• If the density reading is wrong, go to step 11
7. Make sure the temperature
reading is accurate for the fluid
See page 50
• If the temperature reading is correct, go to step 8
• If the temperature reading is wrong, go to step 14
8. Is the flow measurement
configured for mass or volume?
See page 46
• If the configuration is for mass, go to step 11
• If the configuration is for volume, go to step 9
9. Is the reference total based on a
fixed density value?
If the flow units are OK, go to step 3
If the flow units are wrong, change them, then go to step 15
If the flowmeter was zeroed properly, go to step 4
If the flowmeter was not zeroed properly, zero it, then go
to step 15
• If the total is based on a fixed value, go to step 10
• If the total is not based on a fixed value, go to step 11
10. Change flow units to mass flow
units
See page 46
• Go to step 15
11. Check for faulty or improperly
installed grounding
See page 51
• If the grounding is OK, go to step 12
• If the grounding is incorrect or faulty, fix it, then go to step 15
12. Check for two-phase flow
See page 53
• If there is no two-phase flow, go to step 13
• If there is two-phase flow, fix the problem, then go to step 15
13. Check the scale (or reference
measurement) for accuracy
Use your plant
procedures
• If the scale is accurate, go to step 14
• If the scale is not accurate, fix it, then go to step 15
14. Check for faulty or improperly
installed flowmeter wiring
See page 47
• If the flowmeter wiring is OK, go to step 16
• If the flowmeter wiring is incorrect or faulty, fix or replace it,
then go to step 15
15. Run a new batch and check again
for an inaccurate rate or total
16. Contact Micro Motion
44
• If the rate or total is correct, you’ve solved the problem
• If the rate or total is wrong, start over at step 2 or go to
step 16
Phone numbers are
listed on page 41
Micro Motion® Model D and DT Sensors Instruction Manual
Troubleshooting continued
Inaccurate density reading
Symptom
The flowmeter density measurement is erratic, or is lower or higher than
the density of the fluid.
Troubleshooting instructions
To troubleshoot an inaccurate density reading, you will need one of the
communications devices listed on page 46 or a transmitter with a
display. Refer to the table below for the necessary steps to troubleshoot
an inaccurate density reading.
Table 4.
Troubleshooting inaccurate density reading
Procedure
1. Check for stable density reading
at the transmitter
Instructions
See page 50
What to do next
• If the density reading is stable, go to step 2
• If the density reading is not stable, go to step 3
2. Check for the proper density
calibration factor
See page 49
• If the dens cal factor is correct, go to step 4
• If the dens cal factor is incorrect, change it, then go to
step 11
3. Check for faulty or improperly
installed flowmeter wiring
See page 47
• If the flowmeter wiring is OK, go to step 4
• If the flowmeter wiring is incorrect or faulty, fix or replace it,
then go to step 11
4. Check for faulty or improperly
installed grounding
See page 51
• If the grounding is OK, go to step 5
• If the grounding is incorrect or faulty, fix it, then go to step 11
5. Check to see if the density reading
is low or high
See page 50
• If the density reading is low, go to step 6
• If the density reading is high, go to step 10
6. Run a quality check on the
process fluid
Use your plant
procedures
• If the product quality is OK, go to step 7
• If the product quality is not OK, fix it, then go to step 11
7. If you checked the wiring in step 3,
go to step 8, otherwise, check for
faulty or improperly installed
flowmeter wiring
See page 47
• If the flowmeter wiring is OK, go to step 8
• If the flowmeter wiring is incorrect or faulty, fix or replace it,
then go to step 11
8. Check for two-phase flow
See page 53
• If there is no two-phase flow, go to step 9
• If there is two-phase flow, fix the problem, then go to step 11
9. Check for vibration or crosstalk
See page 53
• If there is no vibration or crosstalk, go to step 12
• If there is vibration or crosstalk, eliminate it, then go to
step 11
10. Check for plugging or build-up on
the sensor flow tubes
See page 54
• If the tubes are not plugged, go to step 12
• If there is plugging or build-up, clear the tubes, then go to
step 11
11. Check again for inaccurate density
reading at the transmitter
See page 50
• If the reading is correct, you’ve solved the problem
• If the reading is still wrong, start over at step 1 or go to
step 12
12. Contact Micro Motion
Phone numbers are
listed on page 41
Micro Motion® Model D and DT Sensors Instruction Manual
45
Troubleshooting continued
Inaccurate temperature reading
Symptom
The flowmeter temperature reading is different than expected.
Troubleshooting instructions
To troubleshoot an inaccurate temperature reading, you will need one of
the communications devices listed on page 46 or a transmitter with a
display. Refer to the table below for the necessary steps to troubleshoot
an inaccurate temperature reading.
Table 5.
Troubleshooting inaccurate temperature reading
Procedure
1. Check for faulty or improperly
installed flowmeter wiring
Instructions
See page 47
What to do next
• If the flowmeter wiring is OK, go to step 2
• If the flowmeter wiring is faulty, fix or replace it, then go to
step 3
2. Check for the proper temperature
calibration factor
See page 49
• If the temp cal factor is correct, go to step 4
• If the temp cal factor is incorrect, change it, then go to step 3
3. Check again for inaccurate
temperature reading at the
transmitter
See page 50
• If the reading is correct, you’ve solved the problem
• If the reading is still wrong, start over at step 1 or go to step 4
4. Contact Micro Motion
Phone numbers are
listed on page 41
Troubleshooting at the
transmitter
The tables in the preceding sections refer you to this section for
instructions on troubleshooting at the transmitter. To troubleshoot at the
transmitter, you might need a digital multimeter (DMM) or similar device,
the transmitter display, if it has one, and one of the following:
• HART Communicator
• ProLink or ProLink II software
• AMS software
• Modbus master controller (RFT9739 only, Series 1000, or Series 2000)
• Fieldbus host controller (Series 1000, or Series 2000)
• Profibus host controller (Series 1000 or 2000)
Checking or changing the flow units
Check or change the flow units (units of measure) configuration at the
transmitter. If necessary, refer to the instruction manual (or on-line help
for software) for the method you choose.
• Use the transmitter display, if it has one
• Use a HART Communicator, ProLink software, or AMS software
• Use a Modbus, fieldbus, or Profibus-PA host controller
Make sure the configured units of measure are the ones you want. Also,
make sure you know what the abbreviations mean. For example, g/sec is
grams per second, not gallons per second.
46
Micro Motion® Model D and DT Sensors Instruction Manual
Troubleshooting continued
Checking for erratic flow rate at the transmitter
Before troubleshooting erratic flow rate, you must first determine
whether it is a result of the transmitter or a connected output device.
Check for an erratic flow signal at the transmitter using any of the
following methods. If necessary, refer to the instruction manual (or
on-line help for software) for the method you choose.
• Use the transmitter display, if it has one
• Use a HART Communicator, ProLink software, or AMS software
• Use a Modbus, fieldbus, or Profibus-PA host controller
• Use a DMM on the transmitter’s 4-20 mA or frequency output terminals
If the flow rate or output signal is not erratic at the transmitter outputs,
the problem is not with the transmitter.
Checking for faulty output wiring
Having already checked the output at the transmitter end (above), use a
DMM to check the signal at the other end (the receiving end) of the
output wiring. If the signal is not erratic, the problem is not with the
output wiring.
Checking for faulty flowmeter wiring
Wiring problems are often incorrectly diagnosed as a faulty sensor.
Examine wiring between the sensor and transmitter as follows:
1. Check the cable preparation. The flowmeter cable must be
prepared correctly. The most common problem is improperly
prepared drain wires. See illustration, below. The drains are clipped at
the sensor end. They should not be connected to any terminals in the
sensor junction box. See wiring diagrams, pages 22-32.
2. Check wire terminations. Check to be sure wires are secured tightly
in the terminal blocks, and making good connections. Make sure no
wires remain exposed at either end of the flowmeter cable.
3. Check ohm levels. If the cable was properly prepared and terminal
connections are good, check resistance across wire pairs to
determine whether the flowmeter cable is faulty. The procedure is
performed first at the transmitter, then at the sensor. Follow these
steps:
a. Disconnect the transmitter’s power supply.
b. Disconnect sensor wiring from the transmitter’s flowmeter
terminals.
Micro Motion® Model D and DT Sensors Instruction Manual
47
Troubleshooting continued
c. Use a DMM to measure resistance across wire pairs at the
transmitter end of the cable. See table on page 48.
• If the measured value is within the range listed in the table,
reconnect wiring and restore power to the transmitter.
• If the measured resistance is outside the range listed in the table,
repeat the measurements at the sensor junction box.
- If the sensor is a not a D600, refer to the “Nominal resistance
ranges” table below.
- If the sensor is a D600, refer to the table and illustration on
page 49.
- If resistance values measured at the sensor are also outside the
range listed in the table, the sensor might be faulty.
Cross-section of cable with drain wires
Drain wire
(one for each wire set)
Wire sets
Cable jacket
Wire sets
Table 6. Nominal resistance ranges for flowmeter circuits (for all D and DT sensors except the D600)
Notes
• Disconnect wires from terminals before checking resistance values.
• Temperature-sensor value increases 0.38675 ohms per °C increase in temperature.
• Nominal resistance values will vary 40% per 100 °C. However, confirming an open coil or shorted coil is more important than
any slight deviation from the resistance values presented below.
• Resistance across blue and gray wires (right pickoff circuit) should be within 10% of resistance across green and white wires
(left pickoff circuit).
• Actual resistance values depend on the sensor model and date of manufacture.
• Reading across wire pairs should be steady.
Circuit
Drive coil
Left pickoff
Right pickoff
Temperature sensor
Lead length compensator
Wire colors
Brown to red
Green to white
Blue to gray
Orange to violet
Yellow to violet
Sensor terminals*
1 to 2
5 to 9
6 to 8
3 to 7
4 to 7
Nominal resistance range
8 to 2650 Ω
16 to 300 Ω
16 to 300 Ω
100 Ω at 0 °C + 0.38675 Ω / °C
100 Ω at 0 °C + 0.38675 Ω / °C
* For transmitter terminal designations, refer to the table below. For D600 sensors, see the illustration and table on page 49.
48
Micro Motion® Model D and DT Sensors Instruction Manual
Troubleshooting continued
Checking ohm levels at a D600 sensor (applicable only to sensors with a junction box)
D600 sensor with remote mounted booster amplifier
(booster amplifier not shown)
D600 sensor with integral booster amplifier
Check all circuits except
drive coil circuit (brown to
red wires) here
Check drive coil circuit, brown to red here
Check all circuits except drive coil circuit (brown to red wires) here
Table 7.
Nominal resistance values for D600 circuits
Notes
• Disconnect wires from terminals before checking resistance values.
• Temperature-sensor value increases 0.38675 ohms per °C increase in temperature.
• Nominal resistance values will vary 40% per 100 °C. However, confirming an open coil or shorted coil is more important than
any slight deviation from the resistance values presented below.
• Resistance across blue and gray wires (right pickoff circuit) should be within 10% of resistance across green and white wires
(left pickoff circuit).
• Actual resistance values depend on the sensor model and date of manufacture.
• Reading across wire pairs should be steady.
• See previous illustration for terminal locations.
Circuit
Drive coil
Wire colors
Brown to red
Approximate nominal resistance
16 Ω
Primary left pickoff
Green to white
140 Ω
Primary right pickoff
Blue to gray
140 Ω
Secondary left pickoff
Brown to white
140 Ω
Secondary right pickoff
Red to gray
140 Ω
Temperature sensor
Yellow to violet
100 Ω at 0°C + 0.38675 Ω / °C
Micro Motion® Model D and DT Sensors Instruction Manual
49
Troubleshooting continued
Checking the calibration factors
Check or change the flow, density, or temperature calibration factors at
the transmitter. The temperature cal factor is for the RFT9739, Model
1700, Model 2700, Model 3500, and 3700 only. If necessary, refer to the
instruction manual (or on-line help for software) for the method you
choose.
• Use the Model 3500 or 3700 display
• Use a HART Communicator, ProLink or ProLink II software, or AMS
software
• Use the host controller
Enter the calibration factors that are listed on the flowmeter calibration
tag. (Calibration factors are also listed on the certificate that was
shipped with the meter.) If the calibration factors at the flowmeter are
already correct, the problem is not with the calibration factors.
Checking the damping value
Check or change the damping value at the transmitter. If necessary,
refer to the instruction manual (or on-line help for software) for the
method you choose.
• Use the Model 3500 or 3700 display
• Use a HART Communicator, ProLink software, or AMS software
• Use the host controller
In almost all applications, the damping value should be greater than or
equal to 0.8 seconds. If the damping value is already greater than or
equal to 0.8 seconds, the problem is probably not with the damping
value.
Damping values less than 0.8 seconds are used in very few applications.
After troubleshooting is complete, if you have a question about whether
your application might require a lower damping value, contact the Micro
Motion Customer Service Department. Phone numbers are listed on
page 41. The two most common applications affected by a damping
value that is too high are:
• Very short batching applications
• Very short-pass proving applications
Checking the drive gain
Contact Micro Motion to check the drive gain. Phone numbers are listed
on page 41.
If the transmitter is a Model 1700, 2700, 3500, or 3700, you can use the
display to view drive gain. For more information, refer to the manual that
is shipped with the transmitter.
Checking the density or temperature reading
View the flowmeter density or temperature measurement in any of
several ways:
• Use the transmitter display, if it has one
• Use a HART Communicator, ProLink or ProLink II software, or AMS
software
• Use the connected output device, if there is one
50
Micro Motion® Model D and DT Sensors Instruction Manual
Troubleshooting continued
• Use the host controller
If necessary, test the process fluid to confirm the flowmeter
measurement is correct.
Checking for RF or transient-voltage interference
Radio-frequency (RF) or transient-voltage interference can affect the
input or output signals at the transmitter. If you suspect interference, and
can eliminate the source, do so before checking the alternatives
described below.
Output wiring. Output wiring can be affected by interference. Make
sure output wiring from the transmitter is properly grounded in
accordance with the instructions in the transmitter manual. Also make
sure no wires remain exposed at either end of output wiring.
Flowmeter cable. If the flowmeter cable does not have an external
shield (see illustration, below), and is not installed in conduit, it could be
affected by interference. Also make sure no wires remain exposed at
either end of the flowmeter cable.
Cross-section of externally shielded cable
External shield
(braided wire)
Cable jacket
Individual wire sets
with drain wires
Troubleshooting at the sensor
The tables in the preceding sections refer you to this section for
instructions on troubleshooting at the sensor. To troubleshoot at the
sensor, you might need a digital multimeter (DMM) or similar device. For
some procedures, you might also need the transmitter manual.
Checking flowmeter grounding
The sensor can be grounded via the piping, as long as joints in the
pipeline are ground-bonded, or by means of a ground screw on the
sensor case. See illustration, below. Transmitter grounding is described
in the transmitter instruction manual.
If the sensor is not grounded via the piping, and if national standards are
not in effect, adhere to these guidelines to ground the sensor via the
junction box:
• Use copper wire, 14 AWG (2,5 mm2) or larger wire size for grounding.
• Keep all ground leads as short as possible, less than 1 ohm
impedance.
• Connect ground leads directly to earth, or follow plant standards.
Micro Motion® Model D and DT Sensors Instruction Manual
51
Troubleshooting continued
For hazardous area installation in Europe, use standard EN 60079-14 as
a guideline if national standards are not in effect.
Sensor grounding screw
Model D600
sensors
Other Model D
sensors
Model DT
sensors
Checking for moisture in the core processor or sensor junction box
Note that the following will help reduce the risk of getting moisture in the
core processor or sensor junction box: If possible, install wiring with the
conduit openings pointed down to reduce the risk of condensation or
moisture in the housing. Otherwise, install drip legs on the cable or
conduit.
All wiring compartments must be sealed to prevent a short circuit. A
short would result in measurement error or flowmeter failure.
• The D600 has a junction box and a booster amplifier housing.
• Do not open the D600 booster amplifier housing while the booster
amplifier is energized. See the warning statement below.
• Replace all covers and seal all openings before applying power to a
D600 sensor.
WARNING
Explosion Hazard
In a hazardous area:
• Do not open booster amplifier housing cover while
booster amplifier is energized.
• Wait at least 30 minutes after power is shut off before
opening.
52
Micro Motion® Model D and DT Sensors Instruction Manual
Troubleshooting continued
Open the junction box (and, for a D600, the booster amplifier housing) to
check for moisture. If moisture is present, dry out the junction box. Do
not use contact cleaner. Follow these guidelines to avoid risk of
condensation or excessive moisture from accumulating:
• Seal all conduit openings.
• Install drip legs in conduit or cable.
• If possible, install wiring with junction-box openings pointed down.
• Check integrity of gaskets.
• Close and fully seal all housing covers.
Checking for mounting stress on the sensor
Because each installation is unique, it is not possible to offer a definitive
solution for mounting problems. However, mounting stresses can be
caused by one or more of the following conditions:
• The pipeline is being supported by (hung from) the sensor.
• Misaligned piping was drawn together by the sensor.
• An unsupported pipeline is not sturdy enough to support the sensor.
If you are unable to determine whether the process connections are
being subjected to mounting stress, contact Micro Motion for additional
assistance. Phone numbers are listed on page 41.
Checking for vibration and crosstalk
Micro Motion sensors have been designed to minimize the effect of
vibration. In very rare cases, however, vibration or crosstalk can affect
flowmeter operation. Crosstalk is the transfer of resonant vibration from
one sensor to another, and sometimes occurs when two like-size
sensors are installed in close proximity to each other and are operating
on the same fluid for short periods of time.
Micro Motion meters are rarely affected by vibration, so vibration or
crosstalk is probably not the problem. If you are not sure whether
vibration or crosstalk is affecting the sensor, contact Micro Motion for
additional assistance. Phone numbers are listed on page 41.
Checking for 2-phase flow
Two-phase flow occurs when air or gas is present in a liquid process
stream, or when liquid is present in a gas process stream. Two-phase
flow has several causes, as described below.
Leaks. Leaks can occur at process connections, valve seals, and pump
seals, resulting in air being introduced into a liquid stream. Air might also
be drawn in at the system inlet. Check the system for leaks, and repair
any leaks that are found.
Cavitation and flashing. Cavitation and flashing are caused by
operating the system at or near the process fluid vapor pressure,
resulting in pockets of air or gas being introduced into the process fluid.
If the sensor is near a device that causes pressure drop, such as a
control valve, locating the sensor upstream from the device can
decrease the risk of flashing. Alternatively, increasing back pressure
downstream from the sensor can also reduce the risk of cavitation and
flashing.
Cascading. Cascading of the fluid can occur when the flow rate
diminishes to the point where the sensor tube is only partially filled.
Micro Motion® Model D and DT Sensors Instruction Manual
53
Troubleshooting continued
Often, this occurs because fluid is flowing downward through a sensor
installed in a vertical pipeline. (When a sensor is mounted this way, it is
called the flag-mount orientation).
To help eliminate cascading, fluids should flow upward through a flagmounted sensor. Mounting the sensor in the preferred orientation often
reduces cascading. (See Orientation, page 13.) Increasing back
pressure downstream from the sensor can also reduce or eliminate
cascading.
High points in the system. When measuring liquids, entrained air
(pockets of non-condensable gas) can collect in high points of a fluid
system. If the fluid velocity is low, and/or the high points are very high
relative to the system, entrained air pockets can grow and persist. If the
air pocket releases and passes through the sensor, measurement error
could occur. One possible solution is to install vent valves or air
eliminators at a high point in the system, upstream from the sensor. Use
your common plant practices if you choose to install vent valves or air
eliminators.
Low points in the system. When measuring gases, liquid condensate
can collect in low points of a fluid system. If the fluid velocity is low,
and/or the low points are very low relative to the system, condensates
can accumulate and persist. If the liquid passes through the sensor,
measurement error could occur. One possible solution is to install
condensate valves at a low point in the system, upstream from the
sensor. Use your common plant practices if you choose to install
condensate valves.
Checking for plugging or build-up
If the process fluid tends to build up in the piping, the sensor can
become plugged or partially plugged due to build-up of material inside
the sensor flow tubes. To determine whether plugging or build-up has
occurred, check at the transmitter for a high drive gain and high density
reading (see page 50).
• If the drive gain and the density reading are both high, flush or clean
the sensor, then check for an accurate density reading on water (or
some other fluid with a known density). If the density is still wrong,
plugging of the tube is probably not the problem.
• If either the drive gain or the density reading is not high, plugging of the
tube is probably not the problem.
54
Micro Motion® Model D and DT Sensors Instruction Manual
Appendix
A
Purge Fittings
Keeping purge fittings sealed
If the sensor has purge fittings, they should remain sealed at all times.
After a purge plug is removed, the sensor case should be purged with a
dry, inert gas (such as argon or nitrogen), and resealed. See Case
purging procedure, page 56.
Purging the case protects internal components. Before Micro Motion
ships a sensor from the factory, it purges the sensor case. If you never
loosen or remove the fittings, you do not have to be concerned about
them.
For more information, contact the Micro Motion Customer Service
Department:
• In the U.S.A., phone 1-800-522-MASS (1-800-522-6277), 24 hours
• In Canada and Latin America, phone +1 303-527-5200 (U.S.A.)
• In Asia, phone +65 6777-8211 (Singapore)
• In the U.K., phone 0870 240 1978 (toll-free)
• Outside the U.K., phone +31 (0) 318 495 555 (The Netherlands)
• Or visit our website at www.micromotion.com.
Purge fittings
Front
view
Side
view
Purge plug
1/2" NPT female
purge fitting
Sensor case
Micro Motion® Model D and DT Sensors Instruction Manual
55
Purge Fittings continued
Using purge fittings
The primary reason for having purge fittings is to monitor pressure inside
the sensor case. Some users, such as those measuring highly volatile
fluids, install a pressure transmitter across the sensor purge fittings. A
control device, connected to the pressure transmitter, shuts down the
process if a change in pressure is detected. This provides additional
protection should a rupture occur inside the sensor.
Removing a purge plug
If you remove a purge plug from the sensor case, it is necessary to
re-purge the case.
WARNING
Removing a purge plug will require the sensor case to
be re-purged with a dry inert gas. Improper
pressurization could result in serious personal injury.
Follow all instructions for re-purging the sensor case. See
Case purging procedure, below.
Case purging procedure
Read all instructions before performing the case purging procedure. It is
not necessary to perform this procedure unless a purge plug has been
removed.
1. Shut down the process, or set control devices for manual operation.
CAUTION
Performing the purge procedure while the flowmeter is
operating could affect measurement accuracy,
resulting in inaccurate flow signals.
Before performing the case purging procedure, shut down
the process, or set control devices for manual operation.
2. Remove both purge plugs from the sensor case. If purge lines are
being used, open the valve in the purge lines.
56
Micro Motion® Model D and DT Sensors Instruction Manual
Purge Fittings continued
3. Connect the supply of dry, inert gas to the inlet purge connection or
open inlet purge line. Leave the outlet connection open.
• Exercise caution to avoid introducing dirt, moisture, rust, or other
contaminants into the sensor case.
• If the purge gas is heavier than air (such as argon), locate the inlet
lower than the outlet, so the purge gas will displace air from bottom
to top.
• If the purge gas is lighter than air (such as nitrogen), locate the inlet
higher than the outlet, so the purge gas will displace air from top to
bottom.
4. Make sure there is a tight seal between the inlet connection and
sensor case, so air cannot be drawn by suction into the case or purge
line.
5. The purge time is the amount of time required for full exchange of
atmosphere to inert gas. For each sensor size, the purge time is
different. Refer to the table below. If purge lines are being used,
increase the purge time to fill the additional volume of the purge line.
6. Avoid pressurizing the sensor case. At the appropriate time, shut off
the gas supply, then immediately seal the purge outlet and inlet
connections. If pressure inside the case elevates above atmospheric
pressure during operation, the flowmeter density calibration will be
inaccurate.
Time required to purge Model D sensor cases
Sensor model
D25
D38
D40
D65
D100
D150
D300
D600
Purge rate
cubic ft/hr (l/hr)
20 (566)
20 (566)
20 (566)
20 (566)
20 (566)
20 (566)
40 (1132)
80 (2264)
Time*
minutes
3
3
3
10
15
15
30
60
* If purge lines are being used, increase purge time to fill the additional volume.
Micro Motion® Model D and DT Sensors Instruction Manual
57
58
Micro Motion® Model D and DT Sensors Instruction Manual
Appendix
B
Rupture Disk
Using the rupture disk
The primary reason for having a rupture disk is to vent process fluid from
inside the sensor case, should the sensor flow tube rupture in a highpressure application. Some users, such as those measuring highpressure gases, install a pipeline at the rupture disk fitting, to help
contain escaping process fluid. This provides additional protection
should a rupture occur.
WARNING
Pressure Relief Zone.
Escaping high-pressure fluid can cause severe injury
or death.
Stay clear of rupture disk pressure-relief area.
For more information, contact the Micro Motion Customer Service
Department:
• In the U.S.A., phone 1-800-522-MASS (1-800-522-6277), 24 hours
• In Canada and Latin America, phone +1 303-527-5200 (U.S.A.)
• In Asia, phone +65 6777-8211 (Singapore)
• In the U.K., phone 0870 240 1978 (toll-free)
• Outside the U.K., phone +31 (0) 318 495 555 (The Netherlands)
• Or visit our website at www.micromotion.com.
Rupture disk
Rupture disk
assembly
Sensor
case
Micro Motion® Model D and DT Sensors Instruction Manual
59
60
Micro Motion® Model D and DT Sensors Instruction Manual
Appendix
C
Label Maintenance and
Replacement
Maintaining and replacing labels
Micro Motion product safety labels have been designed in accordance
with the voluntary standard, ANSI Z535.4. If any of the labels illustrated
below is illegible, damaged, or missing, promptly have a new one
installed. The sensor includes the safety labels illustrated below.
Contact Micro Motion for replacement labels:
• In the U.S.A., phone 1-800-522-MASS (1-800-522-6277), 24 hours
• In Canada and Latin America, phone +1 303-527-5200 (U.S.A.)
• In Asia, phone +65 6777-8211 (Singapore)
• In the U.K., phone 0870 240 1978 (toll-free)
• Outside the U.K., phone +31 (0) 318 495 555 (The Netherlands)
• Or visit our website at www.micromotion.com.
Label number 1003972
D sensor with
purge fittings
CAUTION: Removal of plugs will require sensor case to
be repurged with a dry inert gas.
! WARNING: Improper pressurization may result in
injury. Refer to sensor manual for repurging instructions.
Part No. 1003972, Rev. B
For additional information, see Removing a purge plug and Case
purging procedure, page 56.
Label number 1004570
CAUTION
Do not step
or place weight on case.
Precision instrument
enclosed.
Part No. 1004570
Micro Motion® Model D and DT Sensors Instruction Manual
61
Label Maintenance and Replacement continued
Label number 1004134
D sensor with
rupture disk
WARNING
P/N 1004134 Rev. A
Pressure Relief Zone.
Escaping pressure
can cause
severe injury or death.
Stay clear of vent.
For additional information, see Appendix B, page 59.
Label number 3600460
(label inside core processor housing)
Label number 3005784
62
Micro Motion® Model D and DT Sensors Instruction Manual
Label Maintenance and Replacement continued
Label number 3100436
Micro Motion® Model D and DT Sensors Instruction Manual
63
64
Micro Motion® Model D and DT Sensors Instruction Manual
Appendix
D
Return Policy
General guidelines
Micro Motion procedures must be followed when returning equipment.
These procedures ensure legal compliance with government
transportation agencies and help provide a safe working environment for
Micro Motion employees. Failure to follow Micro Motion procedures will
result in your equipment being refused delivery.
Information on return procedures and forms is available on our web
support system at www.micromotion.com, or by phoning the Micro
Motion Customer Service department.
New and unused equipment
Only equipment that has not been removed from the original shipping
package will be considered new and unused. New and unused
equipment requires a completed Return Materials Authorization form.
Used equipment
All equipment that is not classified as new and unused is considered
used. This equipment must be completely decontaminated and cleaned
before being returned.
Used equipment must be accompanied by a completed Return Materials
Authorization form and a Decontamination Statement for all process
fluids that have been in contact with the equipment. If a
Decontamination Statement cannot be completed (e.g., for food-grade
process fluids), you must include a statement certifying decontamination
and documenting all foreign substances that have come in contact with
the equipment.
Micro Motion® Model D and DT Sensors Instruction Manual
65
66
Micro Motion® Model D and DT Sensors Instruction Manual
Index
A
Air eliminators 54
AMS software 41, 46
Approvals tag
keys for sensor location 9
B
Batch total
inaccurate batch total 44
Before you begin 1–7
additional information 7
installation process 6
your new sensor 1
Booster amplifier
sensor location 10
Flowmeter
cable
. See also Wiring
RF interference 51
troubleshooting 47–49
components of 1
grounding 28
troubleshooting 51
startup 39
zeroing 39
G
Grounding
troubleshooting 51
wiring 28
C
Cable
. See also Flowmeter cable; Wiring
DT sensor 10
glands 29
Calibration
certificate 50
startup 39
troubleshooting 49
Cascading 53
Cavitation 53
Certificate of conformance 50
Characterization 39
Condensate valves 54
Configuration 39
Coriolis flowmeter 1
Crosstalk 53
Customer service 40
H
HART Communicator
troubleshooting with 46
Hazardous area installations
sensor location 11
wiring 19
I
Installation
step 2: orientation 13
step 3: mounting 17
step 4: wiring 19, 22–36
step 5: startup 39
Installation process 6
J
Junction box
troubleshooting 52
K
D
Damping 50
Density
checking 50
inaccurate density reading 45
DMM 41, 46
Drive gain 50
E
Entrained air or gas 53–54
European installations 2
F
Fieldbus host 46
Flashing 53
Flow direction 13
Flow direction arrow
sensor orientation 13
Flow rate
erratic flow rate 43
inaccurate flow rate 44
Keys for installation
sensor location 9
sensor mounting 17
sensor orientation 13
L
Labels 61
Location
booster amplifier 10
D600 10
DT sensor junction box 10
hazardous area installations 11
keys for installation 9
pipe run 9
M
Modbus
troubleshooting with 46
Mounting 17
D600 optional mounting 18
DT sensors 18
keys for installation 17
O
Micro Motion® Model D and DT Sensors Instruction Manual
67
Index continued
Orientation 13
flow direction 13
flow direction arrow 13
keys for installation 13
process fluids 13
vertical pipeline 13
checking
calibration factors 49
crosstalk 53
damping value 50
density reading 50
drive gain 50
faulty flowmeter wiring 47–49
faulty output wiring 47
grounding 51
junction box 52
mounting stress 53
plugging 54
RF interference 51
temperature reading 50
2-phase flow 53
vibration 53
condensate valves 54
customer service 41
DMM 41, 46
Fieldbus host 46
flashing 53
general information 41
HART Communicator 46
high points in system 54
low points in system 54
procedures
erratic flow rate 43
inaccurate batch total 44
inaccurate density reading 45
inaccurate flow rate 44
inaccurate temperature reading 46
zero drift 42
ProLink software 41, 46
RF interference 51
vent valves 54
wiring
resistance ranges 48–49
P
Pipe run 9
Plugging 54
Process fluid
flow direction 13
sensor orientation 13
ProLink software 41, 46
Purge fittings
instructions 55–57
R
Resistance ranges for flowmeter circuits 48–49
Return policy 65
RF interference 51
Rupture disk 59
S
Sensor
booster amplifier
location 10
components 2–6
grounding 28
labels 61
mounting 17
orientation 13
purge fittings 55–57
rupture disk 59
startup 39
troubleshooting 41
wiring 19, 22–32, 36
Startup 39
configuration, calibration, and characterization 39
customer service 40
zeroing 39
V
Vent valves 54
T
Temperature
checking 50
inaccurate temperature reading 46
Transmitter
compatible models 1
Troubleshooting 41
air eliminators 54
AMS software 41, 46
at the sensor 51
at the transmitter 46–51
cascading 53
cavitation 53
W
Wiring 19, 22–36
connections to transmitter 21–24, 29–32
D600 sensor 24
grounding 28
hazardous area installations 19
transmitter
1700 or 2700 to Model D or DT sensor 24
troubleshooting 47–49
grounding 51
output wiring 51
RF interference 51
Z
Zero drift 42
Zeroing
flowmeter startup 39
keys for sensor location 9
68
Micro Motion® Model D and DT Sensors Instruction Manual
© 2008, Micro Motion, Inc. All rights reserved. P/N 1005172, Rev. C
*1005172*
For the latest Micro Motion product specifications, view the
PRODUCTS section of our web site at www.micromotion.com
Micro Motion Inc. USA
Worldwide Headquarters
7070 Winchester Circle
Boulder, Colorado 80301
T +1 303-527-5200
+1 800-522-6277
F +1 303-530-8459
Micro Motion Europe
Micro Motion Asia
Emerson Process Management
Neonstraat 1
6718 WX Ede
The Netherlands
T +31 (0) 318 495 555
F +31 (0) 318 495 556
Emerson Process Management
1 Pandan Crescent
Singapore 128461
Republic of Singapore
T
+65 6777-8211
F
+65 6770-8003
Micro Motion United Kingdom
Micro Motion Japan
Emerson Process Management Limited
Horsfield Way
Bredbury Industrial Estate
Stockport SK6 2SU U.K.
T +44 0870 240 1978
F +44 0800 966 181
Emerson Process Management
1-2-5, Higashi Shinagawa
Shinagawa-ku
Tokyo 140-0002 Japan
T
+81 3 5769-6803
F
+81 3 5769-6844
Quick Reference Guide
P/N 1005048, Rev. C
June 2003
Micro Motion®
Model D600 Sensor
Installation Instructions
For online technical support, use the EXPERT2™ system
at www.expert2.com. To speak to a customer service
representative, call the support center nearest you:
•
In the U.S.A., phone 1-800-522-MASS
(1-800-522-6277)
•
In Canada and Latin America, phone
(303) 530-8400
•
In Asia, phone (65) 6770-8155
•
In the U.K., phone 0800 - 966 180 (toll-free)
•
Outside the U.K., phone +31 (0) 318 495 670
TM
Micro Motion
BEFORE YOU BEGIN
This quick reference guide explains basic installation guidelines for
Micro Motion® Model D600 sensors. For detailed information, refer to
the instruction manual that was shipped with the sensor.
European installations
This Micro Motion product complies with all applicable European
directives when properly installed in accordance with the instructions in
this quick reference guide. Refer to the EC declaration of conformity for
directives that apply to this product.
The EC declaration of conformity, with all applicable European
directives, and the complete ATEX Installation Drawings and Instructions
are available on the internet at www.micromotion.com/atex or through
your local Micro Motion support center.
INTRODUCTION
The sensor and booster amplifier make up one part of a Coriolis
flowmeter. The other part is a transmitter.
Installation options
The sensor and booster amplifier are available in any of the
configurations described in Table 1. Table 1 also lists the transmitters that
can be used with each configuration.
©2003, Micro Motion, Inc. All rights reserved. Micro Motion is a registered trademark of Micro Motion, Inc. The Micro
Motion and Emerson logos are trademarks of Emerson Electric Co. All other trademarks are property of their respective
owners.
1
Table 1.
D600 configurations and compatible transmitters
D600 sensor configuration
Booster amplifier
location
Booster
amplifier wiring
component
Connection
to transmitter
Compatible transmitters
Integral to sensor
Junction box
9-wire
•
Remote from
sensor
•
•
•
•
Model 1700/2700 (with
integral core processor)
Model 3500/3700 (9-wire)
RFT9739
RFT9712
Remote core processor
Core processor
4-wire
•
•
•
•
Model 1700/2700
Model 3500/3700 (MVD)
Model 2500
Direct host(1)
Junction box
9-wire
•
•
•
•
•
Model 1700/2700 (with
integral core processor)
Model 3500/3700 (9-wire)
RFT9739
RFT9712
Remote core processor
•
•
•
•
Model 1700/2700
Model 3500/3700 (MVD)
Model 2500
Direct host(1)
Core processor
4-wire
(1) A direct host is a user-supplied remote controller, PLC, or other device.
The following figures illustrate these different configurations:
•
Figure 1 shows the complete D600 sensor with an integral booster
amplifier and junction box.
•
Figure 2 shows the D600 sensor with an integral booster amplifier and
core processor.
•
Figure 3 shows the D600 sensor with junction boxes for connecting to
a remote booster amplifier.
•
Figure 4 shows two remote booster amplifiers, one with a junction
box and one with a core processor.
2
Figure 1.
D600 sensor with integral booster amplifier
and junction box
Process
connection
Junction box for
9-wire cable to
transmitter
Booster amplifier
Flow direction
arrow
Approvals tag
Customer tag
(if requested)
Calibration tag
Sensor
housing
Snub mount connector
Figure 2.
D600 sensor with integral booster amplifier and core
processor
Core processor
for 4-wire cable
to transmitter
Booster amplifier
3
Figure 3.
D600 sensor with junction boxes for remote booster
amplifier
Explosion-proof junction
box for 2-wire cable to
remote booster amplifier
(drive wires)
Intrinsically safe
junction box
for 9-wire cable to
remote booster
amplifier (signal wires)
Figure 4.
Remote booster amplifier
With junction box
Factory-supplied
9-wire cable for
connection to sensor
(signal wires)
Approvals
tag
With core processor
Factory-supplied
9-wire cable for
connection to sensor
(signal wires)
Approvals
tag
Junction box for
9-wire cable to
transmitter
Core processor
for 4-wire cable
to transmitter
Remote
booster
amplifier
Remote
booster
amplifier
4
STEP 1.
Choosing a location
Choose a location for the sensor based on the requirements described in
this section.
General guidelines
The following conditions must be met:
•
Before operation, you must be able to stop flow through the sensor.
(During the zeroing procedure, flow must be stopped completely, and
the sensor must be full of process fluid.)
•
During operation, the sensor must remain full of process fluid.
•
The sensor must be installed in an area that is compatible with the
classification specified on the sensor approvals tag (see Figure 1 and
Figure 4).
Hazardous area installations
Make sure the hazardous areas specified on the approvals tags are suitable
for the environment in which the sensor and booster amplifier will be
installed. See Figures 1 and 4. For installation in an area that requires
intrinsic safety, refer to Micro Motion UL, CSA, or ATEX
documentation, shipped with the sensor or available from the Micro
Motion web site.
For a complete list of hazardous area classifications for Micro Motion
sensors, refer to the EXPERT2™ system at www.expert2.com.
Environmental limits
Temperature limits for the D600 sensor and booster amplifier are listed in
Table 2.
Table 2.
D600 temperature limits
Component
Temperature limits
Sensor with integral booster amplifier(1)
–58 to +140 °F (–50 to +60 °C)
Sensor with remote booster amplifier(1)
–400 to +400 °F (–240 to +204 °C)
Remote booster amplifier(2)
–40 to +140 °F (–40 to +60 °C)
(1) Limits apply to process fluid temperature.
(2) Limits apply to ambient temperature.
5
Process fluid temperature and ambient temperature can be further
restricted by approvals. For detailed information, see the sensor’s
calibration tag.
Sensor-to-remote booster amplifier cable lengths
Remote booster amplifiers are shipped with:
•
16 feet (5 meters) of 9-wire cable for connection to the sensor’s
intrinsically safe junction box
•
16 feet (5 meters) of 2-wire cable for connection to the sensor’s
explosion-proof junction box (not available in all locations)
For longer cable lengths, up to 60 feet (20 meters), contact Micro
Motion.
Sensor-to-transmitter cable lengths
Maximum cable length between sensor and transmitter depends on the
cable type. See Table 3.
Table 3.
Maximum cable lengths
Cable type
Wire gauge
Micro Motion 9-wire
Not applicable
Maximum length
•
to Model 1700/2700
60 feet (20 meters)
•
to remote core processor
60 feet (20 meters)
•
to Model 3500/3700 (9-wire)
1000 feet (300 meters)
•
RFT9739
1000 feet (300 meters)
•
RFT9712
Micro Motion 4-wire
1000 feet (300 meters)
Not applicable
1000 feet (300 meters)
22 AWG (0,35 mm2)
300 feet (90 meters)
20 AWG (0,5 mm2)
500 feet (150 meters)
18 AWG (0,8 mm2)
1000 feet (300 meters)
22 AWG (0,35 mm2) or larger
1000 feet (300 meters)
User-supplied 4-wire
•
•
Power wires (VDC)
Signal wires (RS-485)
Sensor-to-core processor cable length
Maximum distance between the sensor and the core processor is 60 feet
(20 meters). If you are using a remote booster amplifier with a junction
box, connecting to a remote core processor, the combined length of the
two 9-wire cables (sensor-to-booster amplifier and booster amplifier-tocore processor) must be 60 feet (20 meters) or less.
6
STEP 2.
Orienting the sensor
The sensor will function properly in any orientation if the sensor tubes
remain filled with process fluid. Micro Motion recommends installing the
sensor according to the type of process fluid and the flow direction:
•
Preferred orientations are shown in Figure 5.
•
The sensor has a flow direction arrow (see Figure 1) to help you
configure the transmitter for flow direction. If possible, install the
sensor so that the flow direction arrow matches actual process flow.
Figure 5.
Preferred orientations
Liquids
• Tubes down
• Horizontal pipeline
Gases
• Tubes up
• Horizontal pipeline
Slurries
• Flag mount
• Vertical pipeline
Flow
STEP 3.
Mounting the sensor
CAUTION
Using the sensor to support piping can damage the
meter or cause measurement error.
Do not use flowmeter to support pipe.
Use your common practices to minimize torque and bending load on
process connections. Figure 6 illustrates how to mount the D600 sensor.
If possible, install wiring with the conduit opening pointed down to
reduce the risk of condensation or excessive moisture.
7
Figure 6.
Mounting the sensor
For installation in a vertical pipeline (flag-mount orientation), the D600
has a snub connector to provide added support in high-vibration
installations. See Figure 7.
Figure 7.
Optional added support for sensor in flag-mount orientation
Snub-mount connector
• Connect support only to the factory-supplied rubber
snub-mount connector
• Attach with 1/2"-13 UNC bolt
• Bolt may penetrate isolator to 1 1/2" (40 mm)
8
STEP 4.
Wiring the booster amplifier
CAUTION
Improper installation of wiring could cause
measurement error or sensor failure.
• Shut off power before installing power-supply wiring.
• Follow all instructions to ensure sensor will operate
correctly.
• Install drip legs in conduit or cable.
• Seal all conduit openings.
• Ensure integrity of gaskets, grease all O-rings, and
fully tighten sensor junction-box cover, booster
amplifier cover, core processor cover, and all
transmitter housing covers.
WARNING
Improperly removing the booster amplifier housing
cover in a hazardous area could cause an explosion.
In a hazardous area:
• Do not open booster amplifier housing cover while
booster amplifier is energized.
• Wait at least 30 minutes after power is shut off before
opening.
Power supply wiring to the booster amplifier
The booster amplifier, whether mounted integrally or remotely with the
D600 sensor, requires a separate AC power supply. To wire the booster
amplifier power supply:
1. Remove screw and terminal cover before installing wiring. Grease
O-ring and re-install cover before operating.
2. Provide 85-250 VAC power to terminal N/L2 and terminal L/L1.
•
For integral booster amplifier wiring, see Figure 8.
•
For remote booster amplifier wiring, see Figure 9.
9
3. Connect the ground wire for the power supply to the internal ground
screw.
This unit is also provided with an external ground screw for use
where local codes or authorities permit or require such connections.
Figure 8.
Power supply wiring for integral booster amplifier
D600 sensor
Power supply
conduit opening
85-250 VAC N/L2 L/L1
50/60 Hz
Internal
ground screw
Wiring
compartment
External ground screw for use where local codes or authorities
permit or require such connections
10
Figure 9.
Power supply wiring for remote booster amplifier
Power supply
conduit opening
Screw and
terminal cover
Internal
ground screw
85-250 VAC N/L2
50/60 Hz
L/L1
External ground screw for use where local codes or authorities
permit or require such connections
Wiring from the remote booster amplifier to the sensor
The remote version of the booster amplifier requires connection of two
cables from the booster amplifier to the junction boxes on the sensor:
•
9-wire cable (signal wires) — This cable is supplied by Micro Motion,
and is pre-attached to the booster amplifier.
•
2-wire cable (drive wires) — In some locations, this cable may be
supplied by Micro Motion. If the cable is not supplied, use twistedpair 18 AWG (0,75 mm2) 2-wire cable.
To connect the 9-wire cable (signal wires):
1. Do not modify connections at the booster amplifier.
2. Do not place the 9-wire cable and 2-wire cable in the same cable tray.
3. At the sensor end of the 9-wire cable (see left side of Figure 10):
a. Clip all four drain wires and leave them disconnected.
b. Clip the red and brown wires and insulate them.
c. Matching by color, connect the remaining wires (except for the
orange wire) to the corresponding terminals from the sensor
feedthrough.
d. The orange wire in the cable does not have a corresponding
orange wire from the sensor. Connect the orange wire to the
terminal indicated in Figure 10.
e. Terminate the cable braid inside the cable gland.
11
To connect the 2-wire cable (drive wires):
1. Use twisted-pair 18 AWG (0,75 mm2) 2-wire cable. Ensure that the
cable is shielded, continuous from the booster amplifier to the
sensor’s explosion-proof junction box. Two methods can be used:
•
Metallic conduit
•
Shielded or armored cable (do not place the 2-wire cable and 9wire cable in the same cable tray)
2. Connect the wires:
a. Connect terminal 1 at the sensor (see Figure 10) to terminal 1 at
the booster amplifier (see Figure 11).
b. Connect terminal 2 at the sensor to terminal 2 at the booster
amplifier.
3. If the cable has a drain wire:
a. At the sensor end, clip the drain wire and leave it disconnected.
b. At the booster amplifier end, connect the drain wire to the internal
ground screw. See Figure 11.
4. If the cable has a braid, terminate it in the cable gland at both ends.
Figure 10. Sensor junction boxes for remote booster amplifier
Terminal 2
Violet
Yellow
Orange
Terminal 1
2 1
Blue
Gray
White
Green
Intrinsically safe junction box
Explosion-proof junction box
12
Figure 11. Remote booster amplifier – 2-wire cable (drive wires)
Remove screw and terminal
cover before installing wiring.
Re-install cover before operating
Internal ground
screw
Drive wiring
conduit opening
Terminal 2
Terminal 1
External ground screw
STEP 5.
Wiring the sensor to the transmitter or direct host
WARNING
Failure to comply with requirements for intrinsic
safety in a hazardous area could result in an
explosion.
• For installation in an area that requires intrinsic safety,
refer to Micro Motion UL, CSA, or ATEX
documentation, shipped with the sensor or available
from the Micro Motion web site.
• For hazardous area installations in Europe, refer to
standard EN 60079-14 if national standards do not
apply.
13
CAUTION
Failure to seal sensor and transmitter housings could
cause a short circuit, which would result in
measurement error or flowmeter failure.
•
•
•
•
Ensure integrity of gaskets and O-rings.
Grease all O-rings before sealing.
If conduit is used, install drip legs in conduit.
Seal all conduit openings.
CAUTION
Allowing the shield drain wires to contact the sensor
junction box can cause flowmeter errors.
Do not allow the shield drain wires to contact the sensor
junction box.
Junction box to 9-wire transmitter
If connecting from a D600 sensor with an integral booster amplifier and
junction box (see Figure 1) or from a remote booster amplifier with a
junction box (see the left side of Figure 4), follow the steps below to
connect the 9-wire cable between the junction box and the transmitter.
1. Prepare and install the cable according to the instructions in Micro
Motion’s 9-Wire Flowmeter Cable Preparation and Installation
Guide.
2. Insert the stripped ends of the individual wires into the terminal
blocks. No bare wires should remain exposed.
3. Match the wires color for color. For wiring at the transmitter, see the
transmitter Quick Reference Guide.
4. Tighten the screws to hold the wires in place.
5. Ensure integrity of gaskets, grease all O-rings, then tightly close and
seal the junction box cover and all housing covers on the transmitter.
14
Core processor to 4-wire transmitter or direct host
If connecting from a D600 sensor with an integral booster amplifier and
core processor (see Figure 2) or from a remote booster amplifier with a
core processor (see the right side of Figure 4), follow the steps below to
connect the 4-wire cable between the core processor and the transmitter
or direct host.
1. Use one of the following methods to shield the wiring:
•
If you are installing unshielded wiring in continuous metallic
conduit that provides 360° termination shielding for the enclosed
wiring, go to Step 6.
•
If you are installing a user-supplied cable gland with shielded
cable or armored cable, terminate the shields in the cable gland.
Terminate both the armored braid and the shield drain wires in the
cable gland. Go to Step 6.
•
If you are installing a Micro Motion-supplied cable gland at the
core processor housing:
-
Prepare the cable and apply shielded heat shrink as described
below. The shielded heat shrink provides a shield termination
suitable for use in the gland when using cable whose shield
consists of foil and not a braid. Proceed to Step 2.
-
With armored cable, where the shield consists of braid,
prepare the cable as described below, but do not apply heat
shrink. Proceed to Step 2.
2. Remove the cover from the core processor.
3. Slide the gland nut and the clamping insert over the cable.
15
4 1/2 in
(114 mm)
3/4 in
(19 mm)
Gland nut
Gland clamping
insert
7/8 in
(22 mm)
7/8 in
(22 mm)
Gland body
Shielded
heat shrink
4. For connection at the core processor housing, prepare shielded cable
as follows (for armored cable, omit steps d, e, f, and g):
a. Strip 4 1/2 inches (114 mm) of cable jacket.
b. Remove the clear wrap that is inside the cable jacket, and remove
the filler material between the wires.
c. Remove the foil shield that is around the insulated wires, leaving
3/4 inch (19 mm) of foil or braid and drain wires exposed, and
separate the wires.
d. Wrap the shield drain wire(s) around the exposed foil twice. Cut
off the excess wire.
Shield drain wire(s) wrapped twice around exposed shield foil
e. Place the shielded heat shrink over the exposed shield drain
wire(s). The tubing should completely cover the drain wires.
f.
Without burning the cable, apply heat (250 °F or 120 °C) to
shrink the tubing.
16
Shielded heat shrink completely covers exposed drain wires
g. Position gland clamping insert so the interior end is flush with the
heat shrink.
h. Fold the cloth shield or braid and drain wires over the clamping
insert and approximately 1/8 inch (3 mm) past the O-ring.
i.
Install the gland body into the core processor housing conduit
opening.
5. Insert the wires through the gland body and assemble the gland by
tightening the gland nut.
6. Identify the wires in the 4-wire cable. The 4-wire cable supplied by
Micro Motion consists of one pair of 18 AWG (0,75 mm2) wires (red
and black), which should be used for the VDC connection, and one
pair of 22 AWG (0,35 mm2) wire (green and white), which should be
used for the RS-485 connection. Connect the four wires to the
numbered slots on the core processor, matching corresponding
numbered terminals on the transmitter. See Figure 12.
17
Figure 12. Connecting the wires at the core processor
Power supply +
(Red wire)
RS-485B
(Green wire)
RS-485A
(White wire)
Power supply –
(Black wire)
Core processor housing internal ground screw
• For connections to earth ground when core processor cannot be grounded
via sensor piping and local codes require ground connections to be made
internally
• Do not connect shield drain wires to this terminal
7. Reattach the core processor cover.
8. For wiring at the transmitter, see the transmitter Quick Reference
Guide.
9. If connecting to a direct host, you must connect the VDC wires from
the core processor to a power supply, and you must connect the
RS-485 wires to the RS-485 terminals on the host.
•
If you are connecting to an I.S. barrier supplied by Micro Motion
(MVD Direct Connect installations), the barrier supplies power to
the core processor.
a. Connect all 4 wires of the 4-wire cable from the core
processor to the barrier. Refer to the barrier documentation to
identify the terminals at the barrier.
b. Ensure that there is no electromagnetic interference coupled
onto the 4 wires between the core processor and the barrier.
18
•
If you are not using a barrier:
a. Connect the VDC wires from the core processor (see
Figure 12) to an independent power supply. This power
supply must connect only to the core processor. A
recommended power supply is the SDN series of 24-VDC
power supplies manufactured by Sola/Hevi-Duty.
b. Do not ground either connection of the power supply.
c. Connect the RS-485 wires from the core processor (see
Figure 12) to the RS-485 terminals at the direct host. Refer to
the vendor documentation to identify the terminals.
d. Ensure that there is no electromagnetic interference coupled
onto the cables between the core processor and the power
supply or direct host.
STEP 6.
Grounding the sensor
CAUTION
Improper grounding could cause measurement error.
To reduce the risk of measurement error:
• Ground the flowmeter to earth, or follow ground
network requirements for the facility.
• For hazardous area installations in Europe, refer to
standard EN 60079-14 if national standards do not
apply.
The sensor must be grounded. The sensor may be grounded via the piping
if the joints in the pipeline are ground-bonded. If the sensor is not
grounded via the piping, connect a ground wire to the sensor ground
screw.
If using an integral booster amplifier, it is grounded with the sensor. If
using a remote booster amplifier, it must be grounded separately, using
the internal or external ground screw as required.
19
If national standards are not in effect, follow these guidelines to ground
the sensor and remote booster amplifier via the provided ground screws:
•
Use copper wire, 14 AWG (2,5 mm²) or larger wire size, for
grounding.
•
Keep ground leads as short as possible.
•
Use less than 1 ohm impedance for ground leads.
•
Connect ground leads directly to earth, or follow plant guidelines.
For instructions on grounding the transmitter, see the transmitter Quick
Reference Guide.
20
© 2003, Micro Motion, Inc. All rights reserved. P/N 1005048, Rev. C
*1005048*
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