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Installation Manual
20002514, Rev BA
December 2010
Micro Motion® R-Series Coriolis Flow Sensors
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Safety and approval information
This Micro Motion product complies with all applicable European directives when properly installed in accordance with the instructions in this manual.
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/
documentation.
For hazardous installations in Europe, refer to standard EN 60079-14 if national standards do not apply.
Other information
Full product specifications can be found in the product data sheet. Troubleshooting information can be found in the transmitter configuration manual.
Product data sheets and manuals are available from the Micro Motion web site at www.micromotion.com/documentation.
Return policy
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.
Micro Motion customer service
Location Telephone number
U.S.A. 800-522-MASS (800-522-6277) (toll free)
Canada and Latin America +1 303-527-5200 (U.S.A.)
Asia Japan 3 5769-6803
All other locations +65 6777-8211 (Singapore)
Europe U.K. 0870 240 1978 (toll-free)
All other locations +31 (0) 318 495 555 (The Netherlands)
Customers outside the U.S.A. can also send an email to flow.support@emerson.com.
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Contents
Contents
Chapter 1 Planning ...........................................................................................................................1
1.1 Installation checklist ........................................................................................................................1
1.2 Best practices ..................................................................................................................................2
1.3 Environmental limits .......................................................................................................................2
Chapter 2 Mounting .........................................................................................................................4
2.1 Mount the sensor ............................................................................................................................4
Chapter 3 Wiring ..............................................................................................................................5
3.1 Options for wiring ...........................................................................................................................5
3.2 Connect 4-wire cable ......................................................................................................................5
Chapter 4 Grounding ........................................................................................................................9
Installation Manual i
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Contents
ii Micro Motion R-Series
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1 Planning
Topics covered in this chapter:
Installation checklist
•
Best practices
•
Environmental limits
•
1.1 Installation checklist
□
Make sure that the hazardous area specified on the sensor approval tag is suitable
for the environment in which the sensor is installed.
□
Verify that the local ambient and process temperatures are within the limits of the
sensor. See Environmental limits.
□
If your sensor has an integral transmitter, no wiring is required between the sensor
and transmitter. Follow the wiring instructions in the transmitter installation manual
for signal and power wiring.
□
If your transmitter has remote-mounted electronics, follow the instructions in this
manual for wiring between the sensor and the transmitter, and then follow the
instructions in the transmitter installation manual for power and signal wiring.
□
For the wiring between the sensor and the transmitter, consider maximum cable
lengths (see Table 1-1 and Table 1-2). The maximum distance between the sensor
and transmitter depends on the cable type. For all types of wiring, Micro Motion
recommends using Micro Motion cable.
Planning
Maximum lengths for Micro Motion cableTable 1-1:
Cable type To transmitter Maximum length
Micro Motion 4-wire All 4-wire MVD transmitters 1000 ft (300 m)
Maximum lengths for user-supplied 4-wire cableTable 1-2:
Wire function Wire size Maximum length
Power (VDC) 22 AWG (0,35 mm2) 300 ft (90 m)
20 AWG (0,5 mm2) 500 ft (150 m)
18 AWG (0,8 mm2) 1000 ft (300 m)
Signal (RS-485) 22 AWG (0,35 mm2) or larger 1000 ft (300 m)
□
For best performance, follow Micro Motion recommendations for sensor orientation
(see Table 1-3). The sensor will work in any orientation as long as the flow tubes
remain full of process fluid.
Installation Manual 1
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Planning
Recommended sensor orientationTable 1-3:
Liquids
Gases
Slurries
□
Install the sensor so that the flow direction arrow on the sensor matches the actual
forward flow of the process.
1.2 Best practices
The following information can help you get the most from your sensor.
• There are no pipe run requirements for Micro Motion sensors. Straight runs of pipe
upstream or downstream are unnecessary.
• If the sensor is installed in a vertical pipeline, liquids and slurries should flow upward
through the sensor. Gases may flow upward or downward.
• Keep the sensor tubes full of process fluid.
• For halting flow through the sensor with a single valve, install the valve downstream
from the sensor.
• Minimize bending and torsional stress on the meter. Do not use the meter to align
misaligned piping.
• The sensor does not require external supports. The flanges will support the sensor in
any orientation.
1.3
Environmental limits
See Figure 1-1 for the ambient and process temperature limits of the sensor.
2 Micro Motion R-Series
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Planning
Environmental limits for R-Series sensorsFigure 1-1:
176 (80)
140 (60)
104 (40)
68 (20)
32 (0)
–4 (–20)
158
(70)
104
(40)
transmitter in °F (°C)
–40 (–40)
32 (0)
Ambient temperature of core processor or
–148 (–100)
–76 (–60)
–112 (–80)
–4 (–20)
–40 (–40)
68 (20)
104 (40)
140 (60)
176 (80)
212 (100)
248 (120)
302 (150)
Maximum process temperature in °F (°C)
Notes
• When ambient temperature is below –40 °F (–40 °C), a core processor or transmitter must be
heated to bring its local ambient temperature to between –40 °F (–40 °C) and +140 °F (+60 °C).
Long-term storage of electronics at ambient temperatures below –40 °F (–40 °C) is not
recommended.
• Temperature limits may be further restricted by hazardous area approvals. Refer to the hazardous
area approvals documentation shipped with the sensor or available from the Micro Motion web site
(www.micromotion.com).
• The extended-electronics option allows the sensor case to be insulated without covering the
transmitter or core processor, but does not affect temperature ratings.
Installation Manual 3
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Mounting
2 Mounting
2.1 Mount the sensor
Use your common practices to minimize torque and bending load on process connections.
Tip
To reduce the risk of condensation or excessive moisture, the conduit opening should not point
upward (if possible). The conduit opening of the core processor can be rotated freely to facilitate
wiring.
Procedure
Mount the sensor in the pipeline (see Figure 2-1).
Mounting the sensorFigure 2-1:
Notes
• Do not use the sensor to support the piping.
• The sensor does not require external supports. The flanges will support the sensor in any orientation.
CAUTION!
Do not lift the sensor by the electronics. Lifting the sensor by the electronics can damage the
device.
4 Micro Motion R-Series
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3 Wiring
Topics covered in this chapter:
Options for wiring
•
Connect 4-wire cable
•
3.1 Options for wiring
The wiring procedure you follow depends on which electronics option you have.
See Table 3-1 for the wiring options for each sensor electronics option.
Wiring procedures by electronics optionTable 3-1:
Electronics option Wiring procedure
Integral transmitter No wiring required between sensor and transmitter. See the transmitter
installation manual for wiring the power and signal cable to the transmitter.
MVD™Direct Connect
Core processor See Connect 4-wire cable.
™
No transmitter to wire. See the MVD Direct Connect manual for wiring the
power and signal cable between the sensor and the direct host.
Wiring
3.2
CAUTION!
Make sure the hazardous area specified on the sensor approval tag is suitable for the
environment in which the sensor will be installed. Failure to comply with the requirements for
intrinsic safety in a hazardous area could result in an explosion.
CAUTION!
Fully close and tighten all housing covers and conduit openings. Improperly sealed housings
can expose electronics to moisture, which can cause measurement error or flowmeter failure.
Inspect and grease all gaskets and O-rings.
Connect 4-wire cable
Installation Manual 5
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Wiring
Step 1: Cable preparation
Remove the core processor
cover
Cable glands
Micro Motion
cable gland
Pass the wires through the gland nut and clamping insert.
Gland nut
1. Strip 4-1/2 inch (115 mm) of cable jacket.
2. Remove the clear wrap and filler material.
3. Strip all but 3/4 inch (19 mm) of shielding.
Clamping
insert
NPT
Wrap the drain wires twice around the shield and cut off
Gland supplier
Gland type
the excess drain wires.
Cable layout
through the gland
M20
1. Strip 4-1/4 inch (108 mm) of cable jacket.
2. Remove the clear wrap and filler material.
3. Strip all but 1/2 inch (12 mm) of shielding.
User-supplied
cable gland
Pass the wires
Metal conduit
Run conduit to
sensor
Lay cable in conduit
Go to Step 3
Drain wires
wrapped around
shield
Go to Step 2
6 Micro Motion R-Series
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Step 2: Shield termination
Wiring
From Step 1
Micro Motion
cable gland
Braided
(armored cable)
Apply the Heat Shrink
1. Slide the shielded heat shrink over the drain wires. Ensure that the
wires are completely covered.
2. Apply heat (250 °F or 120 °C) to shrink the tubing. Do not burn the
cable.
3. Position the clamping insert so the interior end is flush with the braid
of the heat shrink.
Assemble the Gland
1. Fold the shield or braid back over the clamping insert and 1/8 inch
(3 mm) past the O-ring.
2. Install the gland body into the conduit opening on the core processor housing.
3. Insert the wires through gland body and tighten the gland nut onto the gland body.
Cable shield
type
Shielded heat
shrink
Foil
(shielded cable)
NPT
Gland supplier
Gland type M20
After heat applied
User-supplied
cable gland
Trim 7 mm from the shielded
heat shrink
Trim
Terminate the shield
and drain wires in the
Assemble the gland
according to vendor
gland
instructions
Shield folded back
Go to Step 3
Gland body
Installation Manual 7
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Wiring
Step 3: Terminal connections
From Step 1 or 2
Connect the wires to the core processor terminals:
Red wire > Terminal 1 (Power supply +)
Black wire > Terminal 2 (Power supply –)
White wire > Terminal 3 (RS-485/A)
Green wire > Terminal 4 (RS-485/B)
Reinstall and tighten the core processor cover
Connect the wires to the transmitter
(see the transmitter manual)
terminals
8 Micro Motion R-Series
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4 Grounding
The sensor must be grounded according to the standards that are applicable at the site.
The customer is responsible for knowing and complying with all applicable standards.
Prerequisites
Micro Motion suggests the following guides for grounding practices:
• In Europe, IEC 79-14 is applicable to most installations, in particular Sections
12.2.2.3 and 12.2.2.4.
• In the U.S.A. and Canada, ISA 12.06.01 Part 1 provides examples with associated
applications and requirements.
If no external standards are applicable, follow these guidelines to ground the sensor:
• Use copper wire, 14 AWG (2,0 mm2) or larger wire size.
• Keep all ground leads as short as possible, less than 1 Ω impedance.
Grounding
• Connect ground leads directly to earth, or follow plant standards.
CAUTION!
Ground the flowmeter to earth, or follow ground network requirements for the facility.
Improper grounding can cause measurement error.
Procedure
Check the joints in the pipeline.
- If the joints in the pipeline are ground-bonded, the sensor is automatically grounded
and no further action is necessary (unless required by local code).
- If the joints in the pipeline are not grounded, connect a ground wire to the grounding
screw located on the sensor electronics.
Tip
The sensor electronics may be a transmitter, core processor, or junction box. The grounding
screw may be internal or external.
Installation Manual 9
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Micro Motion Inc. USA
Worldwide Headquarters
7070 Winchester Circle
Boulder, Colorado 80301
T +1 303-527-5200
T +1 800-522-6277
F +1 303-530-8459
www.micromotion.com
Micro Motion Europe
Emerson Process Management
Neonstraat 1
6718 WX Ede
The Netherlands
T +31 (0) 318 495 555
F +31 (0) 318 495 556
www.micromotion.nl
*20002514*
20002514
Rev BA
2010
Micro Motion Asia
Emerson Process Management
1 Pandan Crescent
Singapore 128461
Republic of Singapore
T +65 6777-8211
F +65 6770-8003
Micro Motion United Kingdom
Emerson Process Management Limited
Horsfield Way
Bredbury Industrial Estate
Stockport SK6 2SU U.K.
T +44 0870 240 1978
F +44 0800 966 181
Micro Motion Japan
Emerson Process Management
1-2-5, Higashi Shinagawa
Shinagawa-ku
Tokyo 140-0002 Japan
T +81 3 5769-6803
F +81 3 5769-6844
©
2010 Micro Motion, Inc. All rights reserved.
The Emerson logo is a trademark and service mark of Emerson
Electric Co. Micro Motion, ELITE, ProLink, MVD and MVD Direct
Connect marks are marks of one of the Emerson Process
Management family of companies. All other marks are property of
their respective owners.
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