Micro Motion T Installation Manual
Micro Motion® T-Series Coriolis Flow and
Density Sensors
Installation Manual
20002172, Rev BA
December 2010
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.
Contents
Contents
Chapter 1 Planning ...........................................................................................................................1
1.1 Installation checklist ........................................................................................................................1
1.2 Best practices ..................................................................................................................................2
1.3 Environmental limits .......................................................................................................................2
1.4 Recommendations for hygienic and self-draining applications ........................................................3
Chapter 2 Mounting .........................................................................................................................6
2.1 Mount the sensor ............................................................................................................................6
Chapter 3 Wiring ..............................................................................................................................7
3.1 Options for wiring ...........................................................................................................................7
3.2 Connect 4-wire cable ......................................................................................................................7
3.3 Connect 9-wire cable ....................................................................................................................10
Chapter 4 Grounding ......................................................................................................................11
Chapter 5 Supplementary information ............................................................................................12
5.1 Purge the sensor case ....................................................................................................................12
Installation Manual i
Contents
ii Micro Motion T-Series
1 Planning
Topics covered in this chapter:
Installation checklist
•
Best practices
•
Environmental limits
•
Recommendations for hygienic and self-draining applications
•
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 9-wire 9739 MVD transmitter 1000 ft (300 m)
All other MVD transmitters 60 ft (20 m)
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)
Installation Manual 1
Planning
□
The sensor will work in any orientation as long as the flow tube remains full of
process fluid.
□
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 tube 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 T-Series
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