Micro Motion 2200S Operating Manual

Installation Manual

MMI-20031632, Rev AA

August 2016

Micro Motion® 2-Wire Time Period Signal (TPS)
Compact Density Meter (CDM)

2-Wire TPS CDM Installation Supplement

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 or through your local Micro Motion support center.

For information about the Pressure Equipment Directive, go to 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

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.micromotion.com, or by phoning the Micro Motion
Customer Service department.

Emerson Flow customer service

Email:

• Worldwide: [e-mail]

• Asia-Pacific: [e-mail]

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] New Zealand 099 128 804

Mexico [phone] 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]

Venezuela [phone] Central & Eastern [phone] 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

Contents

Contents

Chapter 1 Planning ........................................................................................................................ 1

1.1 2-wire installations .......................................................................................................................1

1.2 Installation checklist .................................................................................................................... 1

1.3 Best practices .............................................................................................................................. 2

1.4 Pressure drop in the meter ...........................................................................................................3

1.5 Recommended flow rates ............................................................................................................4

1.6 Power requirements .................................................................................................................... 5

1.7 Perform a pre-installation meter check ........................................................................................ 7

Chapter 2 Mounting .......................................................................................................................9

2.1 Mount the meter ......................................................................................................................... 9

2.2 Rotate the electronics on the meter (optional) .......................................................................... 10

Chapter 3 Wiring ......................................................................................................................... 12

3.1 Terminals and wiring requirements ............................................................................................12

3.2 Hazardous area output wiring ....................................................................................................13

3.3 Wire to galvanic isolators ...........................................................................................................19

Chapter 4 Grounding ....................................................................................................................21

Chapter 5 Verifying ...................................................................................................................... 22

Appendices and reference

Appendix A Sample calibration certificate .......................................................................................23

Installation Manual i

Contents

ii Micro Motion Compact Density Meter

1 Planning

Topics covered in this chapter:

2-wire installations

•

Installation checklist

•

Best practices

•

Pressure drop in the meter

•

Recommended flow rates

•

Power requirements

•

Perform a pre-installation meter check

•

1.1 2-wire installations

The 2-wire Time Period Signal (TPS) is a configuration option available on the Compact
Density Meter (CDM).

Planning

1.2

This option provides:

• A TPS output superimposed on the same pair of wires used to power the meter

• An optional 4-wire connection to the internal RTD

Restriction

The 2-wire TPS device does not support:

• Internal calculations of density

• Internal calculations of process variables, such as velocity indication, case temperature

measurement, or integral health diagnostics

• The display option available on the CDM

For more information on the availability of these features and functionality, refer to the full CDM
installation and configuration manuals.

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 meter limits.

□

For optimal performance, install the meter in the preferred orientation.

The meter will work in any orientation as long as the vibrating tubes remain full of
the process fluid. However, you should validate the meter performance prior to
operation if you have installed it in a non-preferred orientation.

Installation Manual 1

Planning

Preferred meter orientation — vertical, flowing upTable 1-1:

Liquids and slurries

□

Confirm the CDM output wiring requirements.

Tip

Micro Motion provides safety barriers for wiring the CDM in a hazardous environment. For the 2-wire
TPS CDM electronics, the spare part model codes BARRIER7787+ and BARRIER7764+ provide the
barriers needed for an intrinsically-safe installation. For ordering information, contact

[e-mail].

1.3 Best practices

The following information can help you get the most from your meter.

• Handle the meter with care. Follow local practices for lifting or moving the meter.

• Install the meter in the preferred orientation in a vertical pipeline with liquids and

slurries flowing upward.

Important

If you do not install the meter in the preferred orientation, you may need to apply a field
offset to ensure optimal performance. Refer to your organizational standards for sampling
and reference measurement to determine what the offset may be.

• Do not apply a compression force greater than 200 lbs (90.7 kg) when installing the

meter.

• Thermally insulate the meter and the inlet and bypass-loop pipeline to maintain

stable temperatures.

• There are no pipe run requirements for Micro Motion meters. Straight runs of pipe

upstream or downstream are unnecessary.

• Keep the meter tubes full of process fluid.

• For halting flow through the meter with a single valve, install the valve downstream

from the meter.

• Minimize bending and torsional stress on the meter.

Important

Do not use the meter to align misaligned piping as this can invalidate the meter calibration.

2 Micro Motion Compact Density Meter

• The meter does not require external supports. The flanges will support the meter in

any orientation.

1.4 Pressure drop in the meter

The pressure drop in the meter depends on the process conditions. The following figures
illustrate the pressure drop for the meter at varying fluid density and viscosity. In addition,
these charts show how the meter compares to the Micro Motion 7835/7845 liquid density
meters.

Important

For the most accurate pressure drop calculations using your process variables, use the Micro Motion
product selector available at www.micromotion.com.

Sample pressure drop calculations (fluid viscosity equals 2 cP)Figure 1-1:

Planning

A. Pressure drop (bar)
B. Flow rate (m3/hr)

Note

• Density = 800 kg/m

• Viscosity = 2 cP

3

Installation Manual 3

Planning

Sample pressure drop calculations (fluid viscosity equals 10 cP)Figure 1-2:

1.5

A. Pressure drop (bar)
B. Flow rate (m3/hr)

Note

• Density = 800 kg/m

• Viscosity = 10 cP

3

Recommended flow rates

Typical flow

recommendations Flow rate Velocity

Minimum 3 gpm (700 L/hr) 1.5 ft/sec (0.5 m/sec)

Normal 11 gpm (2,500 L/hr) 5 ft/sec (1.5 m/sec)

Maximum 75 gpm (17,000 L/hr) 30 ft/sec (9 m/sec)

Note

For fluids that contain abrasive particles, velocity should be below 10 ft/s (3 m/s).

4 Micro Motion Compact Density Meter

1.6 Power requirements

The following DC power requirements are needed to operate the meter:

• 24 VDC, 0.25 W typical with 300 Ω barrier, 0.3 W maximum with 300 Ω barrier

• Minimum recommended voltage: 22.8 VDC with 1000 ft of 22 AWG (300 m of 0.25

mm2) power-supply cable with 300 Ω barrier

Power cable recommendations for intrinsically-safe meters

Minimum wire gauge with 300 Ω barrierFigure 1-3:

Planning

A. AWG
B. Distance of installation in feet

Installation Manual 5