Micro Motion CDM100P User manual

Installation Manual
MMI-20020974, Rev AC
May 2015
Micro Motion® Compact Density Meters
Peak performance precision density meter installation

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: [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] 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
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
Contents
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.
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.
Preferred meter orientationTable 1-1:
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.)
Planning
Installation Manual 1

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.
Planning
2Micro Motion Compact Density Meter

Bypass installation: S-BendFigure 1-1:
Bypass installation: Pressure bendFigure 1-2:
Bypass installation: Laminar flowFigure 1-3:
Important
The laminar flow installation is only recommended for processes using refined, clean fluids with low
viscosity.
Planning
Installation Manual 3

Bypass installation: Pitot tubeFigure 1-4:
A
A. Vent
Bypass installation: Orifice plateFigure 1-5:
A
A. Orifice plate
Planning
4Micro Motion Compact Density Meter

Bypass installation: PumpFigure 1-6:
A
B
C
A. Vent
B. Sample point
C. Pump
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.
Planning
Installation Manual 5

Sample pressure drop calculations (fluid viscosity equals 2 cP)Figure 1-7:
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/m3
Viscosity = 2 cP
7835 /7845
Sample pressure drop calculations (fluid viscosity equals 10 cP)Figure 1-8:
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/m3
Viscosity = 10 cP
7835 /7845
1.4 Power requirements
Following are the DC power requirements to operate the meter:
Planning
6Micro Motion Compact Density Meter

•Explosion-proof/flameproof meters:
-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:
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
Planning
Installation Manual 7

Minimum wire area (mm2 per meter)Figure 1-10:
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 (mm2 )
328.084 ft 656.168ft 984.253ft 1312.34ft 1640.42ft 1968.5ft 2296.59ft 2624.67ft 2952.76ft 3280.84ft
Power cable recommendations for intrinsically safe meters
Minimum wire gauge (AWG per feet)Figure 1-11:
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
8Micro Motion Compact Density Meter

Minimum wire area (mm2 per meter)Figure 1-12:
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 1000
Minimum Wire Area (mm2)
Distance of Installation (m)
Minimum Wire Area (mm2)
22.8V
24V
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
Customer Support at [email protected].
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.
Planning
Installation Manual 9

Power supply wiring terminalsFigure 1-13:
MTL7728P+
3
4
1
2
A
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.
Planning
10 Micro Motion Compact Density Meter

2 Mounting
Topics covered in this chapter:
•Mount the meter
•Rotate the electronics on the meter (optional)
•Rotate the display on the transmitter (optional)
2.1 Mount the meter
Use your common practices to minimize torque and bending load on process connections.
Tip
To reduce the risk of condensation or excessive moisture, the transmitter conduit opening should
not point upward (if possible). The conduit opening of the transmitter can be rotated freely to
facilitate wiring.
CAUTION!
Do not lift the meter by the electronics. Lifting the meter by the electronics can damage the
device.
Mounting
Installation Manual 11

Mounting the sensorFigure 2-1:
Notes
•Do not use the meter to support the piping.
•The meter does not require external supports. The flanges will support the meter in any orientation.
•All pipework joints and couplings must be airtight to minimize the presence of gas bubbles in the
fluid.
2.2 Rotate the electronics on the meter (optional)
You can rotate the transmitter on the meter up to 90°.
1. Using a 4 mm hex key, loosen the cap screw that holds the transmitter in place.
Mounting
12 Micro Motion Compact Density Meter

Component to secure transmitter in placeFigure 2-2:
A
A. M5 socket-head cap screw
2. Rotate the transmitter clockwise to the desired orientation up to 90°.
3. Secure the cap screw in place and tighten to 60 lb·in (6.8 N·m).
2.3 Rotate the display on the transmitter
(optional)
The display on the transmitter electronics module can be rotated 90° or 180° from the
original position.
Mounting
Installation Manual 13

Display componentsFigure 2-3:
B
C
D
A
D
E
A. Transmitter housing
B. Sub-bezel
C. Display module
D. Display screws
E. Display cover
Procedure
1. If the meter is powered up, power it down.
2. Turn the display cover counterclockwise to remove it from the main enclosure.
3. Carefully loosen (and remove if necessary) the semi-captive display screws while
holding the display module in place.
4. Carefully pull the display module out of the main enclosure until the sub-bezel pin
terminals are disengaged from the display module.
Note
If the display pins come out of the board stack with the display module, remove the pins and
reinstall them.
5. Rotate the display module to the desired position.
6. Insert the sub-bezel pin terminals into the display module pin holes to secure the
display in its new position.
7. If you have removed the display screws, line them up with the matching holes on the
sub-bezel, then reinsert and tighten them.
8. Place the display cover onto the main enclosure.
9. Turn the display cover clockwise until it is snug.
10. If appropriate, power up the meter.
Mounting
14 Micro Motion Compact Density Meter

3 Wiring
Topics covered in this chapter:
•Available output terminals and wiring requirements
•Explosion-proof/flameproof or non-hazardous output wiring
•Hazardous area output wiring
•Processor wiring for remote-mount 2700 FOUNDATION fieldbus™ option
•Wiring to external devices (HART multidrop)
•Wiring to signal converters and/or flow computers
3.1 Available output terminals and wiring
requirements
Three pairs of wiring terminals are available for transmitter outputs. These outputs vary
depending on your transmitter output option ordered. The Analog (mA), Time Period
Signal (TPS), and Discrete (DO) outputs require external power, and must be connected to
an independent 24 VDC power supply.
For meters connecting to a remote-mount 2700 FOUNDATION fieldbus™ transmitter, you
must wire the meter to the remote-mount 2700 transmitter using a 4-wire cable
connection. See the processor wiring content in this manual for information on how to
wire the meter. Refer to the transmitter installation manual for information on wiring the
remote-mount 2700 FOUNDATION fieldbus™ transmitter.
The screw connectors for each output terminal accept a maximum wire size of 14 AWG
(2.5 mm2).
Important
•Output wiring requirements depend on whether the meter will be installed in a safe area or a
hazardous area. It is your responsibility to verify that this installation meets all corporate,
local, and national safety requirements and electrical codes.
•If you will configure the meter to poll an external temperature or pressure device, you must
wire the mA output to support HART communications. You may use either HART/mA single-
loop wiring or HART multi-drop wiring.
Transmitter outputsTable 3-1:
Transmitter version
Output channels
A B C
Analog 4–20 mA + HART 4–20 mA Modbus/RS-485
Time period signal (TPS) 4–20 mA + HART Time Period Sig-
nal (TPS)
Modbus/RS-485
Wiring
Installation Manual 15

Transmitter outputs (continued)Table 3-1:
Transmitter version
Output channels
A B C
Discrete 4–20 mA + HART Discrete output Modbus/RS-485
Processor for remote-mount 2700
FOUNDATION fieldbus™
Disabled Disabled Modbus/RS-485
3.2 Explosion-proof/flameproof or non-hazardous
output wiring
3.2.1 Wire the Analog outputs version in an explosion-proof/
flameproof or non-hazardous area
CAUTION!
Meter installation and wiring should be performed by suitably trained personnel only in
accordance with the applicable code of practice.
Procedure
Wire to the appropriate output terminal and pins (see Figure 3-1).
Wiring
16 Micro Motion Compact Density Meter