Micro Motion CDM100P, CDM100M Installation Manual

MMI-20020974, Rev AC

Micro Motion® Compact Density Meters

Peak performance precision density meter installation

Installation Manual

May 2015

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.

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.

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

1.2 Best practices .................................................................................................................................2

1.3 Pressure drop in the meter ............................................................................................................. 5

1.4 Power requirements .......................................................................................................................6

1.5 Perform a pre-installation meter check ...........................................................................................9

Chapter 2 Mounting .......................................................................................................................11

2.1 Mount the meter ..........................................................................................................................11

2.2 Rotate the electronics on the meter (optional) .............................................................................12

2.3 Rotate the display on the transmitter (optional) ...........................................................................13

Chapter 3 Wiring ........................................................................................................................... 15

3.1 Available output terminals and wiring requirements .................................................................... 15

3.2 Explosion-proof/flameproof or non-hazardous output wiring .......................................................16

3.3 Hazardous area output wiring ...................................................................................................... 20

3.4 Processor wiring for remote-mount 2700 FOUNDATION fieldbus™ option ....................................28

3.5 Wiring to external devices (HART multidrop) ................................................................................33

3.6 Wiring to signal converters and/or flow computers ...................................................................... 38

Chapter 4 Grounding ......................................................................................................................41

Installation Manual i

Contents

ii Micro Motion Compact Density Meter

1 Planning

Topics covered in this chapter:

• Installation checklist

• Best practices

• Pressure drop in the meter

• Power requirements

• Perform a pre-installation meter check

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 meter will be wired to a remote-mount 2700 FOUNDATION fieldbus

□

transmitter:

- Refer to the instructions in this manual for preparing the 4-wire cable and wiring

to the processor connections.

- Refer to the instructions in the transmitter installation manual for mounting and

wiring the 2700 FOUNDATION fieldbus™ transmitter. See Micro Motion
Model 1700 and Model 2700 Transmitters: Installation Manual.

- Consider the maximum cable length between the meter and transmitter. The

maximum recommended distance between the two devices is 1000 ft (300 m).
Micro Motion recommends using Micro Motion cable.

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

□

Planning

™

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.

Liquids and slurries

Install the meter so that the flow direction arrow on the meter case matches the

□

actual forward flow of the process. (Flow direction is also software-selectable.)

Installation Manual 1

Preferred meter orientationTable 1-1:

Planning

1.2 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.

• Perform a Known Density Verification (KDV) check of the meter prior to installing

the meter in your system.

• 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. Do not use the meter to align

misaligned piping.

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

any orientation.

• Installing the meter in a bypass configuration allows you to remove the meter for

servicing or calibration without affecting the main pipeline
(Recommended installations for bypass configurations).

1.2.1 Recommended installations for bypass configurations

The following figures illustrate typical bypass configurations for installing the meter.

2 Micro Motion Compact Density Meter

Planning

Bypass installation: S-BendFigure 1-1:

Bypass installation: Pressure bendFigure 1-2:

Important

The laminar flow installation is only recommended for processes using refined, clean fluids with low
viscosity.

Installation Manual 3

Bypass installation: Laminar flowFigure 1-3:

A

A

Planning

Bypass installation: Pitot tubeFigure 1-4:

A. Vent

Bypass installation: Orifice plateFigure 1-5:

A. Orifice plate

4 Micro Motion Compact Density Meter

Bypass installation: PumpFigure 1-6:

A

B

C

A. Vent
B. Sample point
C. Pump

Planning

1.3 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.

Installation Manual 5

0.40

0.30

0.35

0.20

0.25

0.10

0.15

0.05

CDM

0.00

0 2 4 6 8 10 12 14 16

Flow Rate (m3/hr)

Pressure Drop (Bar)

Density = 800 kg/m

3

Viscosity = 2 cP

7835/7845

0.60

0.70

0.40

0.50

0.20

0.30

0.10

CDM100

0.00

0 2 4 6 8 10 12 14 16

Flow Rate (m3/hr)

Pressure Drop (Bar)

Density = 800 kg/m

3

Viscosity = 10 cP

7835/7845

Planning

Sample pressure drop calculations (fluid viscosity equals 2 cP)Figure 1-7:

Sample pressure drop calculations (fluid viscosity equals 10 cP)Figure 1-8:

1.4 Power requirements

Following are the DC power requirements to operate the meter:

6 Micro Motion Compact Density Meter

• Explosion-proof/flameproof meters:

300ft 600ft 900ft 1200ft 1500ft 1800ft 2100ft 2400ft 2700ft 3000ft

Distance of installation

2 1 . 6V
24 V

14

15

16

17

18

19

20

21

22

23

24

25

26

AWG Maximum

91.44m 182.88m 274.32m 365.76m 457.2m 548.64m 640.08m 731.52m 822.96m 914.4m

- 24 VDC, 0.65 W typical, 1.1 W maximum

- Minimum recommended voltage: 21.6 VDC with 1000 ft of 24 AWG (300 m of

0.20 mm2) power-supply cable

- At startup, power source must provide a minimum of 0.5 A of short-term current

at a minimum of 19.6 V at the power-input terminals.

• Intrinsically safe meters:

- 24 VDC, 0.7 W typical with 250 Ω barrier, 0.96 W maximum with 250 Ω barrier

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

0.25 mm2) power-supply cable

Power cable recommendations for explosion-proof/flameproof meters

Minimum wire gauge (AWG per feet )Figure 1-9:

Planning

Installation Manual 7

0 . 00 0

0.100

0.200

0.300

0.400

0.500

0.600

0.700

10 0m 20 0m 30 0m 40 0m 50 0m 60 0m 70 0m 80 0m 90 0m 100 0m

Distance of installation

2 1 . 6V
24 V

Minimum Wire Area (mm

2

)

328.084 ft 656.168ft 984.253ft 1312.34ft 1640.42ft 1968.5ft 2296.59ft 2624.67ft 2952.76ft 3280.84ft

300 600 900 1200 1500 1800 2100 2400 2700 3000

Distance of Installation (ft)

22.8V

24V

14

15

16

17

18

19

20

21

22

23

24

25

26

AWG

Minimum Wire Gauge

Planning

Minimum wire area (mm2 per meter)Figure 1-10:

Power cable recommendations for intrinsically safe meters

8 Micro Motion Compact Density Meter

Minimum wire gauge (AWG per feet)Figure 1-11:

0.000

0.050

0.100

0.150

0.200

0.250

0.300

0.350

0.400

0.450

0.500

0.550

0.600

0.650

0.700

0.750

0.800

0.850

0.900

100 200 300 400 500 600 700 800 900 100 0

Minimum Wire Area (mm

2

)

Distance of Installation (m)

Minimum Wire Area (mm2)

22.8V

24V

Planning

Minimum wire area (mm2 per meter)Figure 1-12:

1.5 Perform a pre-installation meter check

1. Remove the meter from the box.

CAUTION!

Handle the meter with care. Follow all corporate, local, and national safety regulations
for lifting and moving the meter.

2. Visually inspect the meter for any physical damage.

If you notice any physical damage to the meter, immediately contact Micro Motion

Installation Manual 9

Customer Support at [e-mail].

3. Position and secure the meter in a vertical position with the flow arrow pointing
upward.

4. Connect the power wiring, and power up the meter.

Remove the back transmitter housing cover to access the PWR terminals.

MTL7728P+

3

4

1

2

A

Planning

Power supply wiring terminalsFigure 1-13:

A. Barrier wiring is applicable to intrinsically safe installations only

5. Perform a Known Density Verification (KDV) check.

Use the Known Density Verification procedure to match the current meter
calibration with the factory calibration. If the meter passes the test, then it has not
drifted or changed during shipment.

For more information on performing a KDV check, see the configuration and use
manual that shipped with the product.

10 Micro Motion Compact Density Meter