Emerson Micro Motion H Series User manual

Installation Manual
20002346, Rev BC
January 2019
Micro Motion® H-Series Hygienic Coriolis
Flow and Density Sensors

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 EU declaration of conformity for directives that apply to this product. The EU declaration
of conformity, with all applicable European directives, and the complete ATEX Installation Drawings and Instructions are available
on the internet at www.emerson.com 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.emerson.com.
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 configuration
manual. Product data sheets and manuals are available from the Micro Motion web site at www.emerson.com.
Return policy
Follow Micro Motion procedures when returning equipment. These procedures ensure legal compliance with government
transportation agencies and help provide a safe working environment for Micro Motion employees. Micro Motion will not accept
your returned equipment if you fail to follow Micro Motion procedures.
Return procedures and forms are available on our web support site at www.emerson.com, or by phoning the Micro Motion
Customer Service department.
Emerson Flow customer service
Email:
•Worldwide: [email protected]
•Asia-Pacific: [email protected]
Telephone:
North and South America Europe and Middle East Asia Pacific
United States 800-522-6277 U.K. 0870 240 1978 Australia 800 158 727
Canada [phone] The Netherlands [phone]
666
New Zealand 099 128 804
Mexico [phone]
111
France 0800 917 901 India 800 440 1468
Argentina [phone] Germany 0800 182 5347 Pakistan 888 550 2682
Brazil [phone] Italy 8008 77334 China [phone]
Central & Eastern [phone]
111
Japan [phone]
Russia/CIS [phone] South Korea [phone]
Egypt 0800 000 0015 Singapore [phone]
Oman 800 70101 Thailand 001 800 441 6426
Qatar 431 0044 Malaysia 800 814 008
Kuwait 663 299 01
South Africa 800 991 390
Saudi Arabia 800 844 9564
UAE 800 0444 0684
2

Contents
Chapter 1 Planning........................................................................................................................ 5
1.1 Installation checklist......................................................................................................................... 5
1.2 Best practices................................................................................................................................... 6
1.3 Temperature limits...........................................................................................................................6
1.4 Recommendations for hygienic and self-draining applications......................................................... 7
Chapter 2 Mounting.......................................................................................................................9
2.1 Mount the sensor............................................................................................................................. 9
2.2 Attach extended electronics........................................................................................................... 10
Chapter 3 Transmitter power and I/O wiring................................................................................ 13
3.1 Options for wiring...........................................................................................................................13
3.2 Connect 4-wire cable......................................................................................................................13
3.3 Connect the 9-wire cable ............................................................................................................... 17
Chapter 4 Grounding....................................................................................................................19
Chapter 5 Supplementary information.........................................................................................21
5.1 Purge the sensor case .................................................................................................................... 21
Installation Manual Contents
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Contents Installation Manual
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1 Planning
1.1 Installation checklist
□Make sure that the hazardous area specified on the approval tag is suitable for the
environment in which the meter will be installed.
□Verify that the local ambient and process temperatures are within the limits of the
meter.
□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.
Table 1-1: Maximum cable lengths
Cable type To transmitter Maximum length
Micro Motion 4-wire All 4-wire MVD transmitters —1,000 ft (305 m) without
Ex-approval
—500 ft (152 m) with IIC
rated sensors
—1,000 ft (305 m) with IIB
rated sensors
Table 1-2: Maximum lengths for user-supplied 4-wire cable
Wire function Wire size Maximum length
Power (VDC) 22 AWG (0.326 mm²) 300 ft (91 m)
20 AWG (0.518 mm²) 500NaN ft (NaN m)
18 AWG (0.823 mm²) 1,000 ft (305 m)
Signal (RS-485) 22 AWG (0.326 mm²) or larger 1,000 ft (305 m)
□For optimal performance, install the sensor in the preferred orientation. The sensor will
work in any orientation as long as the flow tubes remain full of process fluid.
Table 1-3: Preferred sensor orientation
Liquids
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Table 1-3: Preferred sensor orientation (continued)
Gases
Slurries and self-draining
applications
□Install the meter so that the flow direction arrow on the sensor case matches the actual
forward flow of the process. (Flow direction is also software-selectable.)
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 should flow 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 Temperature limits
Sensors can be used in the process and ambient temperature ranges shown in the
temperature limit graphs. For the purposes of selecting electronics options, temperature
limit graphs should be used only as a general guide. If your process conditions are close to
the gray area, consult with your Micro Motion representative.
Note
•In all cases, the electronics cannot be operated where the ambient temperature is
below -40 °F (-40.0 °C) or above 140 °F (60.0 °C). If a sensor is to be used where the
ambient temperature is outside of the range permissible for the electronics, the
electronics must be remotely located where the ambient temperature is within the
permissible range, as indicated by the shaded areas of the temperature limit graphs.
•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 H-Series Hygienic Coriolis Flow and Density Meters Product Data Sheet. For
further quesitons, contact customer service.
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•The extended-mount electronics option allows the sensor case to be insulated without
covering the transmitter, core processor, or junction box, but does not affect
temperature ratings. When insulating the sensor case at elevated process
temperatures (above 140 °F (60.0 °C)), please ensure electronics are not enclosed in
insulation as this may lead to electronics failure.
Ambient and process temperature limits for all H-Series meters
400
(204)
81
(27)
–148
(–100) Tproc
140 (60)
158 (70)
–40 (–40)
A
B
Tamb
1.4 Recommendations for hygienic and self-
draining applications
H-Series sensors are self-draining when installed in a vertical pipeline.
For optimal cleanability and drainability:
•If possible, install the sensor in a vertical pipeline with the process fluid flowing upward
through the sensor.
•If the sensor must be installed in a horizontal pipeline, drainage is accomplished by air
purge evacuation of the pipeline circuit.
•For clean-in-place (CIP) applications, Micro Motion recommends using the generally-
accepted flow velocity of at least 1.5 m/s for cleaning the sensor.
•The gap between the electronics housing and sensor body should be inspected
periodically. Manually clean this gap when necessary.
•Tri-clamp and DIN 11851 style process connections require special gaskets to comply
with EHEDG requirements for hygienic design.
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Figure 1-1: Installation for self-draining applications
A
B
C
A. Process pipeline
B. Direction of normal process flow
C. Direction of drainage
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2 Mounting
2.1 Mount the sensor
Use your common practices to minimize torque and bending load on process connections.
About this task
Tip
To reduce the risk of condensation problems, do not orient transmitters or sensor junction
boxes with their conduit openings pointing upward.
CAUTION
Do not lift the sensor by the electronics or purge connections. Lifting the sensor by
the electronics or purge connections can damage the device.
Figure 2-1: Mounting the sensor
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.
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2.2 Attach extended electronics
If your installation has a sensor with extended electronics, you will need to install the
extender onto the sensor case.
About this task
Note
Extended core processors are matched at the factory to specific sensors. Keep each core
processor together with the sensor with which it was shipped.
CAUTION
Keep the extender and feedthrough clean and dry. Moisture or debris in the extender
or feedthrough can damage electronics and result in measurement error or
flowmeter failure.
Procedure
1. Remove and recycle the plastic cap from the feedthrough on the sensor.
Figure 2-2: Feedthrough and extender components
G
H
E
D
C
A
B
F
A. Transmitter or core processor
B. Extender
C. O-ring
D. Feedthrough
E. Clamping ring
F. Clamping screw
G. Plastic plug
H. Plastic cap
2. Loosen the clamping screw and remove the clamping ring. Leave the O-ring in place
on the feedthrough.
3. Remove and recycle the plastic plug from the extender.
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4. Fit the extender onto the feedthrough by carefully aligning the notches on the
bottom of the extender with the notches on the feedthrough.
5. Close the clamping ring and tighten the clamping screw to 13 in lbf (1.47 N m) to
18 in lbf (2.03 N m).
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3 Transmitter power and I/O wiring
3.1 Options for wiring
The wiring procedure you follow depends on which electronics option you have.
Table 3-1: Wiring procedures by electronics option
Electronics option Wiring procedure
Integral transmitter The transmitter is already connected to the sensor. No wiring is
required between sensor and transmitter. See the transmitter
installation manual for wiring the power and signal cable to the
transmitter.
Extended electronics The electronics are separated from the sensor by an extender and
must be attached as described in Attach extended electronics.
There is no wiring required because the physical connection
includes the electrical connection.
MVD™ Direct Connect™There is no transmitter to wire. See the Micro Motion MVD Direct
Connect Meters manual for wiring the power and signal cable
between the sensor and the direct host.
Integral core processor with
remote transmitter
The core processor is already connected to the sensor. Connect a
4-wire cable between the core processor and transmitter. Refer
to Connect 4-wire cable.
DANGER
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.
3.2 Connect 4-wire cable
3.2.1 4-wire cable types and usage
Micro Motion offers two types of 4-wire cable: shielded and armored. Both types contain
shield drain wires.
The cable supplied by Micro Motion consists of one pair of red and black 18 AWG
(0.823 mm²) wires for the VDC connection, and one pair of white and green 22 AWG
(0.326 mm²) wires for the RS-485 connection.
User-supplied cable must meet the following requirements:
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•Twisted pair construction.
•Applicable hazardous area requirements, if the core processor is installed in a
hazardous area.
•Wire gauge appropriate for the cable length between the core processor and the
transmitter, or the host.
Table 3-2: Wire gauge
Wire gauge Maximum cable length
VDC 22 AWG (0.326 mm²) 300 ft (91 m)
VDC 20 AWG (0.518 mm²) 500 ft (152 m)
VDC 18 AWG (0.823 mm²) 1,000 ft (305 m)
RS-485 22 AWG (0.326 mm²) or larger 1,000 ft (305 m)
3.2.2 Prepare a cable with a metal conduit
Procedure
1. Remove the core processor cover using a flat-blade screw driver.
2. Run the conduit to the sensor.
3. Pull the cable through the conduit.
4. Cut the drain wires and let them float at both ends of the conduit.
3.2.3 Prepare a cable with user-supplied cable glands
Procedure
1. Remove the core processor cover using a flat-blade screw driver.
2. Pass the wires through the gland nut and gland body.
A. Gland body
B. Gland nut
3. Terminate the RS-485 shield and drain wires to the housing internal grounding
screw.
4. Assemble the gland according to vendor instructions.
3.2.4 Prepare a cable with Micro Motion-supplied cable glands
Procedure
1. Remove the core processor cover using a flat-blade screw driver.
2. Pass the wires through the gland nut and clamping insert.
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A. Gland nut
B. Clamping insert
3. Strip the cable jacket.
Option Description
NPT gland type Strip 4.5 in (114 mm)
M20 gland type Strip 4.25 in (108 mm)
4. Remove the clear wrap and filler material.
5. Strip most of the shielding.
Option Description
NPT gland type Strip all but 0.75 in (19 mm)
M20 gland type Strip all but 0.5 in (13 mm)
6. Wrap the drain wires twice around the shield and cut off the excess drain wires.
A. Drain wires wrapped around shield
7. For foil (shielded cable) only:
Note
For braided (armored cable) skip this step and contine to the next step.
Option Description
NPT
gland
type
a. Slide the shielded heat shrink over the drain wires. Ensure that
the wires are completely covered.
b. Apply 250 °F (121.1 °C) heat to shrink the tubing. Do not burn
the cable.
c. Position the clamping insert so the interior end is flush with the
braid of the heat shrink.
A. Shielded heat shrink
B. After heat is applied
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Option Description
M20
gland
type
Trim 0.3 in (8 mm).
A. Trim
8. Assemble the gland by folding the shield or braid back over the clamping insert and
0.125 in (3 mm) past the O-ring.
A. Shield folded back
9. Install the gland body into the conduit opening on the core processor housing.
10. Insert the wires through the gland body and tighten the gland nut onto the gland
body.
A. Shield folded back
B. Gland body
3.2.5 Connect the wires to the core processor terminals
After the 4-wire cable has been prepared and shielded (if required), connect the individual
wires of the 4-wire cable to the terminals on the core processor.
Procedure
1. Connect the wires to the core processor terminals.
2. Reinstall the core processor cover.
3. Torque the cover screws to:
•10 in lbf (1.13 N m) to 13 in lbf (1.47 N m) for an aluminum housing
•minimum 19 in lbf (2.15 N m) for a stainless steel housing
If properly seated, there will be no gap between cover and base.
4. Connect the wires to the transmitter terminals using the transmitter installation
manual.
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3.3 Connect the 9-wire cable
Procedure
1. Prepare and install the cable according to the instructions in the Micro Motion 9-Wire
Flowmeter Cable Preparation and Installation Guide.
2. Insert the stripped ends of the individual wires into the terminal blocks of the
junction box. Ensure that no bare wires remain exposed.
3. Match the wires color for color. For wiring at the transmitter or remote core
processor, refer to the transmitter documentation.
4. Tighten the screws to hold the wires in place.
5. Ensure integrity of gaskets, then tightly close and seal the junction box cover and all
housing covers.
6. Refer to the transmitter installation manual for signal and power wiring
instructions.
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4 Grounding
The meter 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
Use 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 (2.08 mm²) or larger wire size.
•Keep all ground leads as short as possible, less than 1 Ω impedance.
•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.
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Grounding Installation Manual
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