Micro Motion CDM100 Meters with Foundation Fieldbus Configuration and Use Manual Manuals & Guides

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Configuration and Use Manual

MMI-20024639, Rev AA

June 2014

Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Configuration and Use Manual

Safety messages

Safety messages are provided throughout this manual to protect personnel and equipment. Read each safety message carefully before proceeding to the next step.

Emerson Flow customer service

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• Asia-Pacific: APflow.support@emerson.com

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Contents

Part I Getting Started

Chapter 1 Before you begin ............................................................................................................3

1.1 About this manual ....................................................................................................................... 3

1.2 Model codes and device types ..................................................................................................... 3

1.3 Communications tools and protocols .......................................................................................... 4

1.4 Additional documentation and resources .................................................................................... 5

Chapter 2 Quick start .....................................................................................................................7

2.1 Power up the transmitter .............................................................................................................7

2.2 Check meter status ......................................................................................................................7

2.3 Make a startup connection to the transmitter ..............................................................................8

2.4 Zero the meter ............................................................................................................................ 8

2.4.1 Zero the meter using the display ..................................................................................9

2.4.2 Zero the meter using ProLink III .................................................................................. 10

2.4.3 Zero the meter using a Fieldbus host .......................................................................... 11

Part II Configuration and commissioning

Chapter 3 Introduction to configuration and commissioning ....................................................... 15

3.1 Default values ............................................................................................................................15

3.2 Enable access to the off-line menu of the display ....................................................................... 15

3.3 Place function blocks in Out of Service mode .............................................................................16

3.4 Restore the factory configuration .............................................................................................. 16

Chapter 4 Integrate the meter with the network ..........................................................................17

4.1 Assign function block channels to transducer block channels .................................................... 17

4.2 Configure AI Linearization .............................................................................................................18

4.3 Configure process alert limits for the AI blocks .......................................................................... 20

4.4 Configure the timeout for Field Diagnostic alerts .......................................................................21

Chapter 5 Configure process measurement ..................................................................................23

5.1 Verify the calibration factors ......................................................................................................23

5.1.1 Calibration factors ...................................................................................................... 24

5.2 Configure line density measurement ........................................................................................ 25

5.2.1 Configure Density Measurement Unit ................................................................................25

5.2.2 Configure Density Damping ............................................................................................ 27

5.2.3 Configure Density Cutoff ................................................................................................ 28

5.2.4 Configure two-phase flow parameters ........................................................................28

5.3 Configure temperature measurement .......................................................................................30

5.3.1 Configure Temperature Measurement Unit ........................................................................ 30

5.3.2 Configure Temperature Damping .....................................................................................31

5.3.3 Configure Temperature Input .......................................................................................... 31

5.4 Configure the pressure input ..................................................................................................... 33

5.4.1 Configure the pressure input using a fieldbus host ......................................................33

5.4.2 Options for Pressure Measurement Unit ........................................................................... 34

Configuration and Use Manual i

Contents

5.5 Configure velocity measurement .............................................................................................. 35

5.5.1 Configure Velocity Measurement Unit ............................................................................... 36

5.5.2 Configure Velocity Damping ............................................................................................37

5.5.3 Configure Flow Direction ................................................................................................37

5.5.4 Configure Velocity Cutoff ................................................................................................39

5.5.5 Configure Velocity Switch Setpoint ...................................................................................39

5.6 Set up the API referral application ..............................................................................................40

5.6.1 Set up the API referral application using ProLink III ...................................................... 40

5.6.2 Set up the API referral application using a fieldbus host ...............................................45

5.7 Set up concentration measurement .......................................................................................... 48

5.7.1 Preparing to set up concentration measurement ........................................................48

5.7.2 Set up concentration measurement using ProLink III ...................................................49

5.7.3 Using equations to calculate specific gravity, °Baumé, °Brix, °Plato, and °Twaddell ......56

5.7.4 Matrix switching ......................................................................................................... 57

Chapter 6 Configure device options and preferences ....................................................................59

6.1 Configure the transmitter display .............................................................................................. 59

6.1.1 Configure the language used for the display ............................................................... 59

6.1.2 Configure the process variables and diagnostic variables shown on the display ...........60

6.1.3 Configure the number of decimal places (precision) shown on the display ..................61

6.1.4 Configure the refresh rate of data shown on the display ..............................................61

6.1.5 Enable or disable automatic scrolling through the display variables ............................ 62

6.2 Enable or disable operator actions from the display ...................................................................63

6.2.1 Enable or disable the Acknowledge All Alerts display command ....................................... 63

6.3 Configure security for the display menus .................................................................................. 64

6.4 Configure alert handling ............................................................................................................65

6.4.1 Configure Fault Timeout .................................................................................................65

6.4.2 Configure Status Alert Severity ........................................................................................66

6.5 Configure informational parameters ......................................................................................... 69

Chapter 7 Completing the configuration ......................................................................................71

7.1 Back up transmitter configuration ............................................................................................. 71

7.2 Return function blocks to In Service (Auto) mode ......................................................................71

Part III Operations, maintenance, and troubleshooting

Chapter 8 Transmitter operation ................................................................................................. 75

8.1 Record the process variables ..................................................................................................... 75

8.2 View process variables ...............................................................................................................75

8.2.1 View process variables using the display .....................................................................76

8.2.2 View process variables and other data using ProLink III ............................................... 77

8.3 View and acknowledge status alerts .......................................................................................... 77

8.3.1 View and acknowledge alerts using the display .......................................................... 77

8.3.2 View and acknowledge alerts using ProLink III .............................................................79

8.3.3 View alerts using a fieldbus host ................................................................................. 80

8.3.4 Alert data in transmitter memory ............................................................................... 80

Chapter 9 Measurement support ................................................................................................. 83

9.1 Perform the Known Density Verification procedure ................................................................... 83

9.1.1 Perform the Known Density Verification procedure using the display ......................... 83

9.1.2 Perform the Known Density Verification procedure using ProLink III ........................... 84

9.1.3 Perform the Known Density Verification procedure using a fieldbus host ....................85

ii Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Contents

9.2 Adjust density measurement with Density Offset or Density Meter Factor ......................................... 86

9.3 Perform density offset calibration ..............................................................................................88

9.3.1 Perform density offset calibration using the display .................................................... 88

9.3.2 Perform density offset calibration using ProLink III ......................................................89

9.3.3 Perform density offset calibration using a fieldbus host .............................................. 91

9.4 Adjust temperature measurement with Temperature Offset ..........................................................92

9.5 Adjust concentration measurement with Trim Offset ...................................................................93

9.6 Adjust concentration measurement with Trim Offset and Trim Slope ............................................. 94

9.7 Set up user-defined calculations ................................................................................................ 96

9.7.1 Equations used in user-defined calculations ................................................................98

9.7.2 Measurement units used in user-defined calculations ................................................. 99

Chapter 10 Troubleshooting ........................................................................................................ 101

10.1 Quick guide to troubleshooting ...............................................................................................101

10.2 Check power supply wiring ......................................................................................................102

10.3 Check grounding .....................................................................................................................103

10.4 Status LED states ..................................................................................................................... 103

10.5 Status alerts, causes, and recommendations ........................................................................... 104

10.6 Density measurement problems ............................................................................................. 111

10.7 Temperature measurement problems .....................................................................................112

10.7.1 Thermal insulation ....................................................................................................113

10.8 API referral problems ...............................................................................................................113

10.9 Concentration measurement problems ...................................................................................114

10.10 Velocity measurement problems .............................................................................................114

10.11 Check sensor-to-transmitter wiring ......................................................................................... 116

10.12 Check Flow Direction .................................................................................................................. 117

10.13 Check the cutoffs .................................................................................................................... 117

10.14 Check for two-phase flow (slug flow) .......................................................................................117

10.15 Check the drive gain ................................................................................................................ 118

10.15.1 Collect drive gain data .............................................................................................. 119

10.16 Check the pickoff voltage ........................................................................................................ 119

10.16.1 Collect pickoff voltage data ...................................................................................... 120

10.17 Check for internal electrical problems ..................................................................................... 120

Appendices and reference

Appendix A Calibration certificate ................................................................................................ 123

A.1 Sample calibration certificates .................................................................................................123

Appendix B Using the transmitter display ..................................................................................... 127

B.1 Components of the transmitter interface ................................................................................ 127

B.2 Use the optical switches .......................................................................................................... 128

B.3 Access and use the display menu system .................................................................................129

B.3.1 Enter a floating-point value using the display ............................................................130

B.4 Display codes for process variables ..........................................................................................134

B.5 Codes and abbreviations used in display menus ...................................................................... 134

Appendix C Using ProLink III with the transmitter .........................................................................147

C.1 Basic information about ProLink III ...........................................................................................147

C.2 Connect with ProLink III ........................................................................................................... 148

C.2.1 Connection types supported by ProLink III ................................................................ 148

C.2.2 Connect with ProLink III to the service port ............................................................... 148

Configuration and Use Manual iii

Contents

Appendix D Foundation™ fieldbus resource block and transducer blocks ....................................... 151

D.1 Resource block ........................................................................................................................ 151

D.2 Transducer blocks and views ................................................................................................... 156

D.2.1 Measurement transducer block and related information .......................................... 157

D.2.2 Calibration transducer block and related information ............................................... 162

D.2.3 Diagnostic transducer block and related information ................................................166

D.2.4 Device Information transducer block and related information .................................. 177

D.2.5 Local Display transducer block and related information ............................................ 182

D.2.6 API Referral transducer block and related information .............................................. 188

D.2.7 Concentration Measurement transducer block and related information ................... 194

D.2.8 Density Viscosity Meter transducer block and related information ............................204

Appendix E Concentration measurement matrices, derived variables, and process variables ........ 223

E.1 Standard matrices for the concentration measurement application ........................................ 223

E.2 Concentration measurement matrices available by order ........................................................224

E.3 Derived variables and calculated process variables .................................................................. 226

iv Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Part I

Getting Started

Chapters covered in this part:

• Before you begin

• Quick start

Getting Started

Configuration and Use Manual 1

Getting Started

2 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

1 Before you begin

Topics covered in this chapter:

• About this manual

• Model codes and device types

• Communications tools and protocols

• Additional documentation and resources

1.1 About this manual

This manual provides information to help you configure, commission, use, maintain, and troubleshoot the Micro Motion Compact Density Meter (CDM).

The following version of the CDM is documented in this manual: Compact Density Meter with Foundation Fieldbus.

Before you begin

See Micro Motion® Compact Density Meters: Configuration and Use Manual for the following versions of the CDM:

• Compact Density Meter with Analog Outputs

• Compact Density Meter with Analog Output and Discrete Output

• Compact Density Meter with Time Period Signal Output

Important

This manual assumes that your meter has been installed correctly and completely, according to the instructions in the installation manual, and that the installation complies with all applicable safety requirements.

1.2 Model codes and device types

Your device can be identified by the model code on the device tag.

Model codes and device typesTable 1-1:

Model code Device nickname I/O

CDM100M****C CDM mA • Two mA outputs

• RS-485 terminals

CDM100M****D CDM DO • One mA output

• One discrete output

• RS-485 terminals

Electronics mounting

Integral

Configuration and Use Manual 3

Before you begin

Model codes and device types (continued)Table 1-1:

Model code Device nickname I/O

CDM100M****B CDM TPS • One mA output

• One Time Period Sig-

nal output

• RS-485 terminals

CDM100M****A CDM FF • Foundation fieldbus 4-wire remote

Restriction

The CDM mA, CDM DO, and CDM FF meters support a complete set of application and configuration options. The CDM TPS meter supports a subset of configuration options. Refer to the product data sheet for details.

1.3 Communications tools and protocols

Electronics mounting

Integral

transmitter

You can use several different communications tools and protocols to interface with the device. You may use different tools in different locations or for different tasks.

Communications tools, protocols, and related informationTable 1-2:

Communications tool Supported protocols Scope In this manual For more information

Display Not applicable Basic configuration and

commissioning

ProLink III Service port Complete configuration

and commissioning

Fieldbus host Foundation fieldbus Complete configuration

and commissioning

Complete user information. See Appendix B.

Basic user information. See Appendix C.

Resource block, transducer blocks and information about the function blocks related to user tasks. See

Appendix D.

Not applicable

User manual

• Installed with soft-

ware

• On Micro Motion

user documentation CD

• On Micro Motion

web site (www.micromo‐

tion.com)

Foundation fieldbus documentation

4 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Tip

You may be able to use other communications tools from Emerson Process Management, such as AMS Suite: Intelligent Device Manager, or the Smart Wireless THUM™ Adapter. Use of AMS or the Smart Wireless THUM Adapter is not discussed in this manual. For more information on the Smart Wireless THUM Adapter, refer to the documentation available at www.micromotion.com.

1.4 Additional documentation and resources

Micro Motion provides additional documentation to support the installation and operation of the transmitter.

Additional documentation and resourcesTable 1-3:

Topic Document

Device installation Micro Motion Compact Density Meters (CDM): Installation Manual

Micro Motion Model 1700 and Model 2700 Transmitters: Installation Manual

Product data sheet Micro Motion Compact Density Meters: Product Data Sheet

Micro Motion Model 1700 and Model 2700 Transmitters: Product Data Sheet

Before you begin

All documentation resources are available on the Micro Motion web site at

www.micromotion.com or on the Micro Motion user documentation DVD.

Configuration and Use Manual 5

Before you begin

6 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

2 Quick start

Topics covered in this chapter:

• Power up the transmitter

• Check meter status

• Make a startup connection to the transmitter

• Zero the meter

2.1 Power up the transmitter

The transmitter must be powered up for all configuration and commissioning tasks, or for process measurement.

1. Ensure that all transmitter and sensor covers and seals are closed.

Quick start

CAUTION!

To prevent ignition of flammable or combustible atmospheres, ensure that all covers and seals are tightly closed. For hazardous area installations, applying power while housing covers are removed or loose can cause an explosion.

2. Turn on the electrical power at the power supply.

The transmitter will automatically perform diagnostic routines. During this period, Alert 009 is active. The diagnostic routines should complete in approximately 30 seconds.

Postrequisites

Although the sensor is ready to receive process fluid shortly after power-up, the electronics can take up to 10 minutes to reach thermal equilibrium. Therefore, if this is the initial startup, or if power has been off long enough to allow components to reach ambient temperature, allow the electronics to warm up for approximately 10 minutes before relying on process measurements. During this warm-up period, you may observe minor measurement instability or inaccuracy.

2.2 Check meter status

Check the meter for any error conditions that require user action or that affect measurement accuracy.

1. Wait approximately 10 seconds for the power-up sequence to complete.

Immediately after power-up, the transmitter runs through diagnostic routines and checks for error conditions. During the power-up sequence, Alert A009 is active. This alert should clear automatically when the power-up sequence is complete.

Configuration and Use Manual 7

Quick start

2. Check the status LED on the transmitter.

Transmitter status reported by status LEDTable 2-1:

LED state Description Recommendation

Green No alerts are active. Continue with configuration or process meas-

urement.

Flashing green No alerts are active. One or more previously

active alerts have not been acknowledged.

Yellow One or more low-severity alerts are active, and

have been acknowledged.

Flashing yellow One or more low-severity alerts are active and

have not been acknowledged.

Red One or more high-severity alerts are active,

and have been acknowledged.

Flashing red One or more high-severity alerts are active and

have not been acknowledged.

Continue with configuration or process measurement. If you choose, you can acknowledge the alerts.

A low-severity alert condition does not affect measurement accuracy or output behavior. You can continue with configuration or process measurement. If you choose, you can identify and resolve the alert condition.

A high-severity alert condition affects measurement accuracy and output behavior. Resolve the alert condition before continuing.

A high-severity alert condition affects measurement accuracy and output behavior. Resolve the alert condition before continuing. You may also acknowledge the alert.

Related information

View and acknowledge status alerts Status alerts, causes, and recommendations

2.3 Make a startup connection to the transmitter

Identify the connection type to use, and follow the instructions for that connection type in the appropriate appendix.

2.4 Zero the meter

Zeroing the meter establishes a baseline for the velocity indicator by analyzing the sensor's output when there is no flow through the sensor tubes.

8 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

• Zero the meter using the display (Section 2.4.1)

• Zero the meter using ProLink III (Section 2.4.2)

• Zero the meter using a Fieldbus host (Section 2.4.3)

2.4.1 Zero the meter using the display

Zeroing the meter establishes a baseline for the velocity indicator by analyzing the sensor's output when there is no flow through the sensor tubes.

Important

In most cases, the default value (0) is adequate for flow indication. Do not zero the meter unless the velocity switch is being triggered incorrectly and you need to apply an offset to the velocity measurement.

Restriction

You cannot change the Zero Time setting from the display. The current setting of Zero Time will be applied to the zero procedure. The default value is 20 seconds. If you need to change Zero Time, you must make a connection to the transmitter from a communications tool such as ProLink III.

Quick start

Prerequisites

Important

Do not zero the meter if a high-severity alert is active. Correct the problem, then zero the meter. You may zero the meter if a low-severity alert is active.

Note

"Display" refers to the display on the remotely mounted transmitter, not directly mounted to the meter. If there is a display directly on the meter, it can only view process variables, and it cannot be used for any other operation.

Procedure

1. Prepare the meter:

a. Stop flow through the sensor by shutting the downstream valve, and then the

upstream valve if available.

b. Verify that the sensor is blocked in, that flow has stopped, and that the sensor is

completely full of process fluid.

c. Verify that the process fluid is not flashing or condensing, and that it does not

contain particles that can settle out.

d. Remove or reduce sources of electromechanical noise if appropriate.

2. Start the zero process.

a. Navigate to the Zero menu: OFFLINE MAINT > OFFLINE CALIB > VEL ZERO.

b. Scroll to CAL VEL/ZERO and activate Select, then select CAL/YES?.

The status LED changes to flashing yellow while the zero is in progress.

Configuration and Use Manual 9

Quick start

3. Read the zero result on the display.

The display reports CAL PASS if the zero was successful, or CAL FAIL if it was not.

Postrequisites

Restore normal flow through the sensor by opening the valves.

Need help? If the zero fails:

• Ensure that there is no flow through the sensor, then retry.

• Remove or reduce sources of electromechanical noise, then retry.

• Set Zero Time to a lower value, then retry.

• If the zero continues to fail, contact Micro Motion.

• If you want to return the meter to operation using a previous zero value, choose OFFLINE

MAINT > CAL > RESTORE VEL/ZERO.

2.4.2 Zero the meter using ProLink III

Zeroing the meter establishes a baseline for the velocity indicator by analyzing the sensor's output when there is no flow through the sensor tubes.

Important

Prerequisites

Important

Do not zero the meter if a high-severity alert is active. Correct the problem, then zero the meter. You may zero the meter if a low-severity alert is active.

Procedure

1. Prepare the meter:

a. Stop flow through the sensor by shutting the downstream valve, and then the

upstream valve if available.

b. Verify that the sensor is blocked in, that flow has stopped, and that the sensor is

completely full of process fluid.

c. Verify that the process fluid is not flashing or condensing, and that it does not

contain particles that can settle out.

d. Remove or reduce sources of electromechanical noise if appropriate.

2. Choose Device Tools > Calibration > Zero Velocity.

3. Modify Zero Time, if desired.

10 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Quick start

Zero Time controls the amount of time the transmitter takes to determine its zeroflow reference point. The default Zero Time is 20 seconds. For most applications, the default Zero Time is appropriate.

4. Click Calibrate Zero.

The Calibration in Progress message is displayed. When the calibration is complete:

• If the zero procedure was successful, a Calibration Success message and a new zero

value are displayed.

• If the zero procedure failed, a Calibration Failed message is displayed.

Postrequisites

Restore normal flow through the sensor by opening the valves.

Need help? If the zero fails:

• Remove or reduce sources of electromechanical noise, then retry.

• If the zero continues to fail, contact Micro Motion.

• If you want to return the meter to operation using a previous zero value, choose Device Tools >

Calibration > Zero Velocity > Restore Prior Zero . Restore Prior Zero is available only while the Zero Velocity window is open. If you close the Zero Velocity window, you will no longer be able to restore the prior zero.

2.4.3 Zero the meter using a Fieldbus host

Zeroing the meter establishes a baseline for the velocity indicator by analyzing the sensor's output when there is no flow through the sensor tubes.

Important

Prerequisites

Important

Do not zero the meter if a high-severity alert is active. Correct the problem, then zero the meter. You may zero the meter if a low-severity alert is active.

Procedure

1. Prepare the meter:

a. Stop flow through the sensor by shutting the downstream valve, and then the

upstream valve if available.

b. Verify that the sensor is blocked in, that flow has stopped, and that the sensor is

completely full of process fluid.

c. Verify that the process fluid is not flashing or condensing, and that it does not

contain particles that can settle out.

Configuration and Use Manual 11

Quick start

d. Remove or reduce sources of electromechanical noise if appropriate.

2. Apply the Zero Calibration method parameter (Calibration TB > ZERO_CAL).

3. Acknowledge Set flow to zero when prompted to confirm that flow is completely stopped.

4. Adjust the zero time when prompted, if desired.

The Calibration in Progress message is displayed. When the calibration is complete:

• If the zero procedure was successful, a Calibration Success message and a new zero

value are displayed.

• If the zero procedure failed, a Calibration Failed message is displayed.

Postrequisites

Restore normal flow through the sensor by opening the valves.

Need help? If the zero fails:

• Remove or reduce sources of electromechanical noise, then retry.

• If the zero continues to fail, contact Micro Motion.

12 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Configuration and commissioning

Part II

Configuration and commissioning

Chapters covered in this part:

• Introduction to configuration and commissioning

• Integrate the meter with the network

• Configure process measurement

• Configure device options and preferences

• Completing the configuration

Configuration and Use Manual 13

Configuration and commissioning

14 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Introduction to configuration and commissioning

3 Introduction to configuration and

commissioning

Topics covered in this chapter:

• Default values

• Enable access to the off‐line menu of the display

• Place function blocks in Out of Service mode

• Restore the factory configuration

3.1 Default values

Default values for your meter are configured at the factory. The specific values are determined by the options that were specified on the purchase order. These are provided on the configuration sheet that was shipped with your meter.

3.2 Enable access to the off-line menu of the display

Display Not available

ProLink III Device Tools > Configuration > Transmitter Display > Display Security

Fieldbus host Local Display TB > Offline Menu (OD Index 011)

Overview

By default, access to the off-line menu of the display is enabled. If it is disabled, you must enable it if you want to use the display to configure the transmitter.

Restriction

You cannot use the display to enable access to the off-line menu. You must make a connection from another tool.

Configuration and Use Manual 15

Introduction to configuration and commissioning

3.3 Place function blocks in Out of Service mode

Display Not available

ProLink III Not applicable

Fieldbus host (block name) > MODE_BLOCK (OD Index Number 005)

Overview

Before you modify parameters on the fieldbus function blocks, you must place the function blocks in Out of Service (O/S) mode. Before you return the device to operation, you must place them back in service (Auto mode). If you are using ProLink III to modify parameters, ProLink III handles this automatically.

3.4 Restore the factory configuration

Display Not available

ProLink III Device Tools > Configuration Transfer > Restore Factory Configuration

Fieldbus host Diagnostic TB > Restore Factory Config (OD Index 050)

Overview

Restoring the factory configuration returns the transmitter to a known operational configuration. This may be useful if you experience problems during configuration.

Tip

Restoring the factory configuration is not a common action. You may want to contact Micro Motion to see if there is a preferred method to resolve any issues.

16 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Integrate the meter with the network

4 Integrate the meter with the network

Topics covered in this chapter:

• Assign function block channels to transducer block channels

• Configure AI Linearization

• Configure process alert limits for the AI blocks

• Configure the timeout for Field Diagnostic alerts

4.1 Assign function block channels to transducer block channels

Fieldbus host AI or AO function block > CHANNEL

AI or AO function block > XD_SCALE (OD Index 10)

AI or AO function block > OUT_SCALE (OD Index 11)

Overview

Each of the four AI function blocks and the AO function block can be assigned to a transducer block channel. Each transducer block channel is used for a single process variable. The AI function blocks are used for input data (data sent from the transmitter to the host). The AO function block is used for output data (data sent from the host to the transmitter).

Channel assignment for the function blocksFigure 4-1:

A. AO function block or AI function block B. AI channel or AO channel (CHANNEL) C. Transducer scale: units index (XD_SCALE) D. Output scale: units index (OUT_SCALE)

Note

Perform these steps for each AI function block channel (1–4) and the AO function block channel, as needed.

Configuration and Use Manual 17

Integrate the meter with the network

Procedure

1. Set the (AI or AO) function block channel to the transducer block channel this block

should report.

2. Make sure the transducer scale is set to the correct units, and change it if necessary.

3. Make sure the output scale units matches the transducer scale units, and change it if

necessary.

4.2 Configure AI Linearization

Fieldbus host AI function block > L_TYPE (OD Index 16)

Overview

AI Linearization is used to rescale a process variable. It can also be used to change the measurement units. The default setting (Direct) is appropriate for most applications.

Procedure

1. Set AI Linearization as desired.

Option Description

Direct The AI block reports process variables directly from the Measurement trans-

ducer block.

Indirect The value from the Measurement transducer block is rescaled as specified by

the Transducer Scale parameters and the Output Scale parameters. The AI block reports the inverse of the result.

Indirect Square Root

Important

AI linearization affects only the process variable reported by the AI block. It has no effect on the Measurement block. Therefore:

• If you set AI Linearization to Indirect or Indirect Square Root, the process variable reported by the

AI block will be different from the process variable read directly from the Measurement block. Both the display and ProLink III read data directly from the Measurement block.

• Measurement parameters such as Density Damping and Density Cutoff are processed by the

Measurement block, and the result is passed through AI linearization. Using Ai linearization to implement damping or cutoff processing may not be possible, and is not recommended.

The value from the Measurement transducer block is rescaled as specified by the Transducer Scale parameters and the Output Scale parameters. The AI block reports the square root of the result. This setting is not applicable to most Micro Motion meters.

2. If you selected Indirect or Indirect Square Root, set the Transducer Scale and Output Scale parameters:

18 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Integrate the meter with the network

a. Set Transducer Scale: EU at 0% to the value of the process variable when the

transducer block reports 0%.

b. Set Transducer Scale: EU at 100% to the value of the process variable when the

transducer block reports 100%.

c. Set Output Scale: EU at 0% to the value of the process variable when the AI block

reports 0%.

d. Set Output Scale: EU at 100% to the value of the process variable when the AI block

reports 100%.

Specify the two transducer scale parameters in the measurement unit configured for the transducer block. Specify the two output scale parameters in the measurement unit configured for the AI block. In most cases, the transducer block and the AI block use the same measurement unit.

Example: Using scaling to change the measurement unit

The transducer block is configured to measure density in g/cm³. You want the AI block to report density in oz/in³.

Your lowest expected density value is 0.5 g/cm³. This is equivalent to 0.289 oz/in³.

Your highest expected density value is 0.85 g/cm³. This is equivalent to 0.491 oz/in³.

Set parameters as follows:

• AI Linearization = Indirect

• Transducer Scale: EU at 0% = 0.5

• Transducer Scale: EU at 100% = 0.85

• Output Scale: EU at 0% = 0.289

• Output Scale: EU at 100% = 0.491

Result: As line density varies between 0.5 g/cm³ and 0.85 g/cm³:

• The transducer block varies between 0% and 100%.

• The Measurement block converts this value to a value between 0.5 g/cm³ and

0.85 g/cm³. The result is reported on the display and set to the AI block.

• The AI block applies AI linearization, and reports a value between 0.289 oz/in³ and

0.85 oz/in³.

Configuration and Use Manual 19

Integrate the meter with the network

4.3 Configure process alert limits for the AI blocks

Fieldbus host AI function block > HI_HI_LIM (OD Index 26)

AI function block > HI_HI_PRI (OD Index 25)

AI function block > HI_LIM (OD Index 28)

AI function block > HI_PRI (OD Index 27)

AI function block > LO_LIM (OD Index 30)

AI function block > LO_PRI (OD Index 29)

AI function block > LO_LO_LIM (OD Index 32)

AI function block > LO_LO_PRI (OD Index 31)

AI function block > ALARM_HYS (OD Index 24)

Overview

Process alerts are used to indicate that a process variable is outside the specified limits. Each AI block has four alert limits: High-High, High, Low, and Low-Low. In general, the range between High and Low represents the normal process range.

Process alerts are reported only by the affected AI block. They are not shown on the display or reported by ProLink III.

Prerequisites

Before setting process alert limits, ensure that the four AI blocks are configured for the appropriate transducer channel (process variable) and measurement unit.

Procedure

1. Select AI Block 1.

2. Set process alert limits:

a. Set the High-High alert to the value of the process variable that will cause the

transmitter to post a High-High alert for this AI block.

b. Set the High alert to the value of the process variable that will cause the

transmitter to post a High alert for this AI block.

c. Set the Low alert to the value of the process variable that will cause the

transmitter to post a Low alert for this AI block.

d. Set the Low-Low alert to the value of the process variable that will cause the

transmitter to post a Low-Low alert for this AI block.

3. For each process alert limit, set the alert priority.

The alert priority is a value between 0 and 15. Higher numbers represent higher priorities. These values are used for fieldbus network management. They do not affect transmitter operation: The transmitter will post the alert as soon as the condition is detected.

4. Repeat for all other AI blocks.

5. Set the alert hysteresis.

20 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Integrate the meter with the network

The alert hysteresis defines a range around the alert limit that operates as a deadband. The range is defined in terms of % of the output scale. Alert hysteresis is used to suppress repetitive alerts when the process variable is hovering around the alert limit.

• A higher value suppresses alerts across a wider range.

• A lower value suppresses alerts across a narrower range. Therefore, alerts may be

posted more frequently.

Important

The alert hysteresis applies to all AI blocks and to all process alert limits.

Example:

AI Block 1 is configured to report line density. The High alert is set at 1.0 g/cm³. The alert hysteresis is set at 5%.

If line density goes above 1.05 g/cm³, the transmitter posts a High alert. The High alert remains active until density goes below 0.95 g/cm³.

4.4 Configure the timeout for Field Diagnostic alerts

Fieldbus host DiagnosticsTB > Alert Index (OD Index 017)

Diagnostic TB > Alert timeout (OD Index 083)

Overview

Each Field Diagnostic alert has an individual Timeout parameter. If the alert occurs, it is not sent to the host until the timeout has expired. Additionally, any associated AI blocks do not go into fault until the timeout has expired. In other words, the process quality for the AI block is reported as Good until the timeout expires.

Procedure

1. Set the alert index to the alert you want to configure.

2. Set the timeout as desired:

• Default: 0 seconds

• Range: 0 to 300 seconds

Configuration and Use Manual 21

Integrate the meter with the network

22 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Configure process measurement

5 Configure process measurement

Topics covered in this chapter:

• Verify the calibration factors

• Configure line density measurement

• Configure temperature measurement

• Configure the pressure input

• Configure velocity measurement

• Set up the API referral application

• Set up concentration measurement

5.1 Verify the calibration factors

Display Not available

ProLink III Device Tools > Calibration Data

Fieldbus host Density Viscosity Meter TB > DEN_A1 (OD Index 035)

Density Viscosity Meter TB > DEN_A2 (OD Index 036)

Density Viscosity Meter TB > DEN_A3 (OD Index 037)

Density Viscosity Meter TB > DEN_A4 (OD Index 038)

Density Viscosity Meter TB > DEN_A5 (OD Index 039)

Density Viscosity Meter TB > DEN_A6 (OD Index 040)

Density Viscosity Meter TB > DEN_A7 (OD Index 041)

Density Viscosity Meter TB > DEN_A8 (OD Index 042)

Density Viscosity Meter TB > DEN_A9 (OD Index 043)

Overview

The calibration factors are used to adjust measurement for the unique traits of the sensor. Your device was calibrated at the factory. However, you should verify that the calibration factors that are configured in your device match the factory values.

Prerequisites

You will need the factory values for the calibration factors. These are provided in two locations:

• The calibration certificate shipped with your meter

• The label inside the transmitter's end-cap

Important

If the transmitter is not the original component, do not use the values from the transmitter label.

Configuration and Use Manual 23

Configure process measurement

Procedure

1. View the calibration factors that are stored in the device.

2. Compare them to the factory values.

• If the values match, no action is required.

• If the values do not match, contact Micro Motion customer service.

Related information

Sample calibration certificates

5.1.1 Calibration factors

The original calibration factors are obtained from factory calibration, and are unique to each device. They are used to adjust measurements for the specific physical properties of the device.

Contents of the calibration certificate

The calibration certificate contains several sets of factors:

Density calibration coefficients

Temperature compensation coefficients

Pressure compensation coefficients

Flow compensation coefficient

The calibration certificate also provides the results of the Known Density Verification procedure that was performed at the factory.

For each calibration performed at the factory, the calibration certificate contains the data used to calculate the calibration coefficients.

CDM format and legacy format (A factors and K factors)

The calibration factors are provided on three calibration certificates:

• The first certificate provides the calibration factors in the CDM format, An, in SI units.

These are obtained from factory calibration of your device.

• The second certificate provides the calibration factors in the legacy format, Kn, in SI

units. These factors represent the current calibration factors converted to the format used by the 7835 and 7845 meters.

• The third certificate provides the calibration factors in the legacy format, Kn, in

imperial units. These factors represent the current calibration factors converted to the format used by the 7835 and 7845 meters, and then converted to imperial units.

Define the relationship between density and the response of your sensor

Adjust density measurement for the effect of temperature on sensor response

Adjust density measurement for the effect of pressure on sensor response

Adjusts density measurement for the effect of flow on sensor response

If you have existing programs that use the K factors, update your programs with the new K values in the appropriate units. In all other situations, use the A-format calibration factors.

24 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Configure process measurement

Related information

Sample calibration certificates

5.2 Configure line density measurement

The density measurement parameters control how density is measured and reported.

• Configure Density Measurement Unit (Section 5.2.1)

• Configure Density Damping (Section 5.2.2)

• Configure Density Cutoff (Section 5.2.3)

• Configure two‐phase flow parameters (Section 5.2.4)

5.2.1 Configure Density Measurement Unit

Display OFF-LINE MAINT > OFF-LINE CONFG > UNITS > DENS

ProLink III Device Tools > Configuration > Process Measurement > Line Density > Density Unit

Fieldbus host Measurement TB > Density Unit (OD Index 017)

Overview

Density Measurement Unit controls the measurement units that will be used in density calculations and reporting.

Restriction

If the API referral application is enabled, you cannot change the density measurement unit here. The density measurement unit is controlled by the API table selection.

Note

Procedure

Set Density Measurement Unit to the option you want to use.

The default setting for Density Measurement Unit is g/cm3 (grams per cubic centimeter).

Related information

Set up the API referral application

Configuration and Use Manual 25

Configure process measurement

Options for Density Measurement Unit

The transmitter provides a standard set of measurement units for Density Measurement Unit. Different communications tools may use different labels.

Options for Density Measurement UnitTable 5-1:

Label Code

Unit description

Specific gravity

Grams per cubic centimeter G/CM3 g/cm3 1100

Grams per liter G/L g/l 1105

Grams per milliliter G/mL g/ml 1104

Kilograms per liter KG/L kg/l 1103

Kilograms per cubic meter KG/M3 kg/m3 1097

Pounds per U.S. gallon LB/GAL lbs/Usgal 1108

Pounds per cubic foot LB/CUF lbs/ft3 1107

Pounds per cubic inch LB/CUI lbs/in3 1106

Short ton per cubic yard ST/CUY sT/yd3 1109

Degrees API D API degAPI 1113

Special unit SPECL special 253

(1) Non‐standard calculation. This value represents line density divided by the density of water at 60 °F.

(1)

Display ProLink III Fieldbus host

SGU SGU 1114

Define a special measurement unit for density

Display Not available

ProLink III Device Tools > Configuration > Process Measurement > Line Density > Special Units

Fieldbus host Density Viscosity Meter TB > Base Unit (OD Index 081)

Density Viscosity Meter TB > Conversion Factor (OD Index 083)

Density Viscosity Meter TB > Label (OD Index 080)

Procedure

1. Specify Density Special Unit Base.

Density Special Unit Base is the existing density unit that the special unit will be based

on.

2. Calculate Density Special Unit Conversion Factor as follows:

a. x base units = y special units

b. Density Special Unit Conversion Factor = x/y

26 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

3. Enter Density Special Unit Conversion Factor.

4. Set User-Defined Label to the name you want to use for the density unit.

The special measurement unit is stored in the transmitter. You can configure the transmitter to use the special measurement unit at any time.

Example: Defining a special measurement unit for density

You want to measure density in ounces per cubic inch.

1. Set Density Special Unit Base to g/cm3.

2. Calculate Density Special Unit Conversion Factor: 1 g/cm3 = 0.578 oz/in3

3. Set Density Special Unit Conversion Factor to 0.578.

4. Set User-Defined Label to oz/in3.

5.2.2 Configure Density Damping

Display Not available

ProLink III Device Tools > Configuration > Process Measurement > Line Density > Density Damping

Fieldbus host Measurement TB > Density_Damping (OD Index 028)

Configure process measurement

Overview

Density Damping controls the amount of damping that will be applied to the line density value.

Damping is used to smooth out small, rapid fluctuations in process measurement. Damping Value specifies the time period (in seconds) over which the transmitter will spread changes in the process variable. At the end of the interval, the internal value will reflect 63% of the change in the actual measured value.

Tip

Density damping affects all process variables that are calculated from line density.

Procedure

Set Density Damping to the value you want to use.

The default value is 0 seconds. The range is 0 to 60 seconds.

Configuration and Use Manual 27

Configure process measurement

5.2.3 Configure Density Cutoff

Display Not available

ProLink III Device Tools > Configuration > Process Measurement > Line Density > Density Cutoff Low

Fieldbus host Measurement TB > Density_Low_Cutoff (OD Index 034))

Procedure

Set Density Cutoff Low to the value you want to use.

The default value is 0.2 g/cm³. The range is 0.0 g/cm³ to 0.5 g/cm³.

5.2.4 Configure two-phase flow parameters

Display Not available

ProLink III Device Tools > Configuration > Process Measurement > Line Density

Fieldbus host Diagnostic TB > Two-Phase Flow Low Limit (OD Index 009)

Diagnostic TB > Two-Phase Flow High Limit (OD Index 010)

Diagnostic TB > Two-Phase Flow Timeout (OD Index 008)

Overview

The two-phase flow parameters control how the transmitter detects and reports twophase flow (gas in a liquid process or liquid in a gas process).

Note

Two-phase flow is sometimes referred to as slug flow.

Procedure

1. Set Two-Phase Flow Low Limit to the lowest density value that is considered normal in

your process.

Values below this will cause the transmitter to post Alert A105 (Two-Phase Flow).

Tip

Gas entrainment can cause your process density to drop temporarily. To reduce the occurrence of two-phase flow alerts that are not significant to your process, set Two-Phase Flow Low Limit slightly below your expected lowest process density.

You must enter Two-Phase Flow Low Limit in g/cm³, even if you configured another unit for density measurement.

28 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Configure process measurement

The default value for Two-Phase Flow Low Limit is 0.0 g/cm³. The range is 0.0 to

3.0 g/cm³.

2. Set Two-Phase Flow High Limit to the highest density value that is considered normal in

your process.

Values above this will cause the transmitter to post Alert A105 (Two-Phase Flow).

Tip

To reduce the occurrence of two-phase flow alerts that are not significant to your process, set Two-Phase Flow High Limit slightly above your expected highest process density.

You must enter Two-Phase Flow High Limit in g/cm³, even if you configured another unit for density measurement.

The default value for Two-Phase Flow Low Limit is 3.0 g/cm³. The range is 0.0 to

3.0 g/cm³.

3. Set Two-Phase Flow Timeout to the number of seconds that the transmitter will wait for

a two-phase flow condition to clear before posting the alert.

The default value for Two-Phase Flow Timeout is 0.0 seconds, meaning that the alert will be posted immediately. The range is 0.0 to 60.0 seconds.

Detecting and reporting two-phase flow

Two-phase flow (gas in a liquid process or liquid in a gas process) can cause a variety of process control issues. By configuring the two-phase flow parameters appropriately for your application, you can detect process conditions that require correction.

Tip

To decrease the occurrence of two-phase flow alerts, lower Two-Phase Flow Low Limit or raise Two-Phase Flow High Limit.

A two-phase flow condition occurs whenever the measured density goes below Two-Phase Flow Low Limit or above Two-Phase Flow High Limit. If this occurs:

• A two-phase flow alert is posted to the active alert log.

• Line density is held at its last pre‐alert value for the number of seconds configured in

Two-Phase Flow Timeout.

If the two-phase flow condition clears before Two-Phase Flow Timeout expires:

• Line density reverts to actual process density.

• The two-phase flow alert is deactivated, but remains in the active alert log until it is

acknowledged.

If the two-phase flow condition does not clear before Two-Phase Flow Timeout expires, line density reverts to actual process density, but the two-phase flow alert remains active.

If Two-Phase Flow Timeout is set to 0.0 seconds, two-phase flow will cause a two-phase flow alert but will have no effect on how the meter measures or reports line density.

Configuration and Use Manual 29

Configure process measurement

5.3 Configure temperature measurement

The temperature measurement parameters control how temperature data from the sensor is reported.

• Configure Temperature Measurement Unit (Section 5.3.1)

• Configure Temperature Damping (Section 5.3.2)

• Configure Temperature Input (Section 5.3.3)

5.3.1 Configure Temperature Measurement Unit

Display OFF-LINE MAINT > OFF-LINE CONFG > UNITS > TEMP

ProLink III Device Tools > Configuration > Process Measurement > Line Temperature > Temperature Unit

Fieldbus host Measurement TB > Temperature Units (OD Index 015)

Overview

Temperature Measurement Unit specifies the unit that will be used for temperature measurement.

Restriction

If the API referral application is enabled, the API table selection automatically sets the temperature measurement unit. Configure the API referral application first, then change the temperature measurement unit if desired.

Note

Procedure

Set Temperature Measurement Unit to the option you want to use.

The default setting is Degrees Celsius.

Related information

Set up the API referral application

Options for Temperature Measurement Unit

The transmitter provides a standard set of units for Temperature Measurement Unit. Different communications tools may use different labels for the units.

30 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

5.3.2 Configure Temperature Damping

Display Not available

ProLink III Device Tools > Configuration > Process Measurement > Line Temperature > Temperature Damping

Fieldbus host Measurement TB > Temperature Tamping (OD Index 027)

Overview

Temperature Damping controls the amount of damping that will be applied to the line temperature value, when the on-board temperature data is used (RTD).

Tip

Temperature Damping affects all process variables, compensations, and corrections that use temperature data from the sensor.

Configure process measurement

Procedure

Enter the value you want to use for Temperature Damping.

The default value is 4.8 seconds.

Tips

• A high damping value makes the process variable appear smoother because the reported value

changes slowly.

• A low damping value makes the process variable appear more erratic because the reported value

changes more quickly.

• Whenever the damping value is non-zero, the reported measurement will lag the actual

measurement because the reported value is being averaged over time.

• In general, lower damping values are preferable because there is less chance of data loss, and less

lag time between the actual measurement and the reported value.

The value you enter is automatically rounded down to the nearest valid value.

5.3.3 Configure Temperature Input

Temperature data from the on-board temperature sensor (RTD) is always available. You can set up an external temperature device and use external temperature data if you want to.

• Configure Temperature Input using a fieldbus host

Configuration and Use Manual 31

Configure process measurement

Configure Temperature Input using a fieldbus host

Fieldbus host Temperature device: AI function block > Output

Overview

Temperature data from the on-board temperature sensor (RTD) is always available. You can set up an external temperature device and use external temperature data if you want to.

Tip

Use an external device only if it is more accurate than the internal RTD.

Important

Line temperature data is used in several different measurements and calculations. It is possible to use the internal RTD temperature in some areas and an external temperature in others. The transmitter stores the internal RTD temperature and the external temperature separately. However, the transmitter stores only one alternate temperature value, which may be either the external temperature or the configured fixed value. Accordingly, if you choose a fixed temperature for some uses, and an external temperature for others, the external temperature will overwrite the fixed value.

Transmitter: AO function block > Cascade Input

Prerequisites

You must enable external temperature compensation before you can set the fixed temperature value.

Procedure

• To use an external temperature value:

1. Set up the AO function block as a temperature source.

2. Connect the AI block of the temperature measurement device to the AO block of the transmitter.

32 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Configure process measurement

External temperature sourceFigure 5-1:

A B

A. AI function block (in the temperature measurement device) B. AO function block (in the transmitter) C. Output D. Cascade Input E. AO Channel – Set to External Temperature (value = 20) F. Process Value Scale: Units Index – Change the units to match the temperature sensing device

• To use a fixed temperature value:

1. Set up the Calibration block.

Fixed temperature setting in the Calibration blockFigure 5-2:

A. Calibration block B. External Temperature: Value – Set to the appropriate fixed temperature value

5.4 Configure the pressure input

Pressure data is required for several different measurements. The meter does not measure pressure. There are several different methods to obtain pressure data.

• Configure the pressure input using a fieldbus host (Section 5.4.1)

5.4.1 Configure the pressure input using a fieldbus host

Fieldbus host Pressure device AI function block > Output

Transmitter AO function block > Cascade Input

Overview

Pressure data is required for several different measurements.

Configuration and Use Manual 33

Configure process measurement

Tip

A fixed pressure value is not recommended. A fixed pressure value may produce inaccurate process data.

Procedure

1. Set up the AO function block as a pressure source.

2. Connect the AI block of the temperature measurement device to the AO block of the transmitter.

External pressure sourceFigure 5-3:

A B

A. AI function block (in the pressure measurement device) B. AO function block (in the transmitter) C. Output D. Cascade Input E. AO Channel – If changed from the default, reset to Pressure (value = 6) F. Process Value Scale: Units Index – Change the units to match the pressure measurement device

Note

Restriction: If the API referral application is enabled, the API table selection automatically sets the pressure measurement unit. Configure the API referral application first, then change the pressure measurement unit if necessary.

Related information

Set up the API referral application

5.4.2 Options for Pressure Measurement Unit

The transmitter provides a standard set of measurement units for Pressure Measurement Unit. Different communications tools may use different labels for the units. In most applications, Pressure Measurement Unit should be set to match the pressure measurement unit used by the remote device.

Options for Pressure Measurement UnitTable 5-2:

Label Code

Unit description

Feet water @ 68 °F FTH2O Ft Water @ 68°F 1154

Inches water @ 4 °C INW4C In Water @ 4°C 1147

Display ProLink III Fieldbus host

34 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Configure process measurement

Options for Pressure Measurement Unit (continued)Table 5-2:

Label Code

Unit description

Inches water @ 60 °F INW60 In Water @ 60°F 1148

Inches water @ 68 °F INH2O In Water @ 68°F 1148

Millimeters water @ 4 °C mmW4C mm Water @ 4°C 1150

Millimeters water @ 68 °F mmH2O mm Water @ 68°F 1151

Millimeters mercury @ 0 °C mmHG mm Mercury @ 0°C 1158

Inches mercury @ 0 °C INHG In Mercury @ 0°C 1156

Pounds per square inch PSI PSI 1141

Bar BAR bar 1137

Millibar mBAR millibar 1138

Grams per square centimeter G/SCM g/cm2 1144

Kilograms per square centimeter KG/SCM kg/cm2 1145

Pascals PA pascals 1130

Kilopascals KPA Kilopascals 1133

Megapascals MPA Megapascals 1132

Torr @ 0 °C TORR Torr @ 0°C 1139

Atmospheres ATM atms 1140

Display ProLink III Fieldbus host

5.5 Configure velocity measurement

The meter provides a basic velocity measurement. The velocity measurement is typically used as an flow indicator.

Velocity is calculated from the measured volume flow rate and the cross-section of the meter tube. If the calculated velocity is greater than the maximum velocity limit of the sensor, Alert A005 is posted.

• Configure Velocity Measurement Unit (Section 5.5.1)

• Configure Velocity Damping (Section 5.5.2)

• Configure Flow Direction (Section 5.5.3)

• Configure Velocity Cutoff (Section 5.5.4)

• Configure Velocity Switch Setpoint (Section 5.5.5)

Configuration and Use Manual 35

Configure process measurement

5.5.1 Configure Velocity Measurement Unit

Display OFF-LINE MAINT > OFF-LINE CONFG > UNITS > VEL

ProLink III Device Tools > Configuration > Process Measurement > Velocity > Velocity Unit

Fieldbus host Density Viscosity Meter TB > Flow Velocity Units (OD Index 048)

Overview

Velocity Measurement Unit controls the measurement unit used to report velocity.

Note

Procedure

Set Velocity Measurement Unit to the desired unit.

The default setting is m/sec.

Options for Velocity Measurement Unit

The transmitter provides a standard set of measurement units for Velocity Measurement Unit. Different communications tools may use different labels.

Options for Velocity Measurement UnitTable 5-3:

Label Code

Unit description

Feet per minute FT/M ft/min 1070

Feet per second FT/S ft/sec 1067

Inches per minute IN/M in/min 1069

Inches per second IN/S in/sec 1066

Meters per hour M/H m/hr 1063

Meters per second M/S m/sec 1061

Display ProLink III Fieldbus host

36 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

5.5.2 Configure Velocity Damping

Display Not available

ProLink III Device Tools > Configuration > Process Measurement > Velocity > Velocity Damping

Fieldbus host Density Viscosity Meter TB > Velocity Damping (OD Index 053)

Overview

Velocity Damping controls the amount of damping that is applied to the velocity measurement.

Procedure

Set Velocity Damping to the value you want to use.

Configure process measurement

The default value is 0.8 seconds. The range is 0.0–51.2 seconds.

The value is automatically rounded down to the nearest valid value. Valid values are as follows: 0, 0.2, 0.4, 0.8, … 51.2.

5.5.3 Configure Flow Direction

Display Not available

ProLink III Device Tools > Configuration > Process Measurement > Velocity > Flow Direction

Fieldbus host Measurement TB > Flow Direction (OD Index 035))

Overview

Flow Direction controls how forward flow and reverse flow affect velocity measurement and reporting.

Flow Direction is defined with respect to the flow arrow on the sensor:

• Forward flow (positive flow) moves in the direction of the flow arrow on the sensor.

• Reverse flow (negative flow) moves in the direction opposite to the flow arrow on

the sensor.

Tip

Micro Motion sensors are bidirectional. Measurement accuracy is not affected by actual flow direction or the setting of the Flow Direction parameter.

Configuration and Use Manual 37

Configure process measurement

Procedure

Set Flow Direction to the value you want to use.

The default setting is Forward.

Options for Flow Direction

Options for Flow DirectionTable 5-4:

Flow Direction setting

Forward 0 Appropriate when the Flow Direction ar-

Reverse 1 Appropriate when the Flow Direction ar-

Absolute value 3 Flow Direction arrow is not relevant. The absolute value of the proc-

Bidirectional 2 Appropriate when both forward and re-

Negate/Forward only

Negate/Bidirection-al5 Appropriate when both forward and re-

4 Appropriate when the Flow Direction ar-

Relationship to Flow Direction arrow on sensor

row is in the same direction as the majority of flow.

row is in the opposite direction from the majority of flow.

verse flow are expected, and forward flow will dominate, but the amount of reverse flow will be significant.

row is in the opposite direction from the majority of flow.

verse flow are expected, and reverse flow will dominate, but the amount of forward flow will be significant.

Effect on velocity measurementSetting Code

No effect

ess variable is used.

No effect

The sign of the process variable is reversed.

Effect of Flow Direction on digital communications

Table 5-5:

Actual flow direction

Flow Direction setting

Forward Positive 0 Negative

Bidirectional Positive 0 Negative

Negate Forward Negative 0 Positive

Negate Bidirectional Negative 0 Positive

38 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Forward Zero flow Reverse

5.5.4 Configure Velocity Cutoff

Display Not available

ProLink III Device Tools > Configuration > Process Measurement > Velocity > Velocity Cutoff

Fieldbus host Density Viscosity Meter TB > Velocity Cutoff (OD Index 049)

Overview

Velocity Cutoff defines the point below which velocity will be reported as 0.

Procedure

Enter the desired value for Velocity Cutoff.

The default is 0.0. There are no limits on the range.

5.5.5 Configure Velocity Switch Setpoint

Configure process measurement

Display OFF-LINE MAINT > OFF-LINE CONFG > IO > CH B DO > CONFIG DO > CONFIG VELSW

ProLink III Device Tools > Configuration > Process Measurement > Velocity > Velocity Switch Setpoint

Fieldbus host Density Visocity Meter TB > Velocity Switch Setpoint (OD Index 022)

Overview

The velocity switch is used to indicate that the velocity has moved past the configured setpoint, in either direction. If the velocity is below the setpoint, the velocity switch is ON. If the velocity is above the setpoint, the velocity switch is OFF.

The velocity switch is based on the absolute value of the velocity, so it is not affected by flow direction.

The velocity switch is implemented with a 5% hysteresis. Hysteresis defines a range around the setpoint within which the velocity switch will not change.

Note

Prerequisites

Depending on the communications tool you are using, you may need to configure Channel B to operate as a discrete output, then set Discrete Output Source to Velocity Switch before you can configure Velocity Switch Setpoint.

Configuration and Use Manual 39

Configure process measurement

Procedure

Set Velocity Switch Setpoint to the value at which the velocity switch will be triggered (after the 5% hysteresis is applied).

• If the velocity is below the setpoint, the velocity switch is ON.

• If the velocity is above the setpoint, the velocity switch is OFF.

The default value is 0.0. At this value, the velocity switch will never be ON. Velocity Switch Setpoint can be set to 0.0 or any positive number.

Example: Velocity switch in operation

If Velocity Switch Setpoint = 5 m/sec and the first measured velocity is above 5 m/sec, the velocity switch is OFF. 1If will remain OFF unless the velocity drops below 4.75 m/sec. If this happens, the velocity switch will turn ON, and remain ON until the velocity rises above

5.25 m/sec. At this point it turns OFF and will remain OFF until the velocity drops below

4.75 m/sec.

Postrequisites

You can report the status of the velocity switch in the following ways:

• Setting Discrete Output Source to Velocity Switch

• Querying the device using digital communications

5.6 Set up the API referral application

The API referral application corrects line density to reference temperature and reference pressure according to American Petroleum Institute (API) standards. The resulting process variable is referred density.

• Set up the API referral application using ProLink III (Section 5.6.1)

• Set up the API referral application using a fieldbus host (Section 5.6.2)

5.6.1 Set up the API referral application using ProLink III

This section guides you through the tasks required to set up and implement the API referral application.

1. Enable the API referral application using ProLink III

2. Configure API referral using ProLink III

3. Set up temperature and pressure data for API referral using ProLink III

Enable the API referral application using ProLink III

The API referral application must be enabled before you can perform any setup. If the API referral application was enabled at the factory, you do not need to enable it now.

1. Choose Device Tools > Configuration > Transmitter Options.

40 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Configure process measurement

2. If the concentration measurement application is enabled, disable it and click Apply.

The concentration measurement application and the API referral application cannot be enabled simultaneously.

3. Enable API Referral and click Apply.

Configure API referral using ProLink III

The API referral parameters specify the API table, measurement units, and reference values to be used in referred density calculations.

Prerequisites

You will need API documentation for the API table that you select.

Depending on your API table, you may need to know the thermal expansion coefficient (TEC) for your process fluid.

You must know the reference temperature and reference pressure that you want to use.

Procedure

1. Choose Device Tools > Configuration > Process Measurement > Petroleum Measurement.

2. Specify the API table to use.

Each API table is associated with a specific set of equations.

a. Set Process Fluid to the API table group that your process fluid belongs to.

API table group Process fluids

A tables Generalized crude and JP4

B tables Generalized products: Gasoline, jet fuel, aviation fuel, kerosene,

heating oils, fuel oils, diesel, gas oil

C tables Liquids with a constant base density or known thermal expansion

coefficient (TEC). You will be required to enter the TEC for your process fluid.

D tables Lubricating oils

E tables NGL (Natural Gas Liquids) and LPG (Liquid Petroleum Gas)

Note

The API referral application is not appropriate for the following process fluids: ethanol, butadiene and butadiene mixes, isopentane, LNG, ethylene, propylene, cyclohexane, aeromatics, asphalts, and road tars.

b. Set Referred Density Measurement Unit to the measurement units that you want to

use for referred density.

c. Click Apply.

Configuration and Use Manual 41

Configure process measurement

3. Refer to the API documentation and confirm your table selection.

4. If you chose a C table, enter Thermal Expansion Coefficient (TEC) for your process fluid.

5. Set Reference Temperature to the temperature to which density will be corrected in

6. Set Reference Pressure to the pressure to which density will be corrected in referred

These parameters uniquely identify the API table. The selected API table is displayed, and the meter automatically changes the density unit, temperature unit, pressure unit, and reference pressure to match the API table.

Restriction

Not all combinations are supported by the API referral application. See the list of API tables in this manual.

a. Verify that your process fluid falls within range for line density, line temperature,

and line pressure.

If your process fluid goes outside any of these limits, the meter will post a status alert and will report line density instead of referred density until the process fluid goes back within range.

b. Verify that the referred density range of the selected table is adequate for your

application.

referred density calculations. If you choose Other, select the temperature measurement unit and enter the reference temperature.

density calculations.

API tables supported by the API referral application

The API tables listed here are supported by the API referral application.

API tables, process fluids, measurement units, and default reference valuesTable 5-6:

Process fluid API table Referred density (API)

Generalized crude and JP4 5A Unit: °API

Range: 0 to 100 °API

23A Unit: SGU

Range: 0.6110 to 1.0760 SGU

Generalized products (gasoline, jet fuel, aviation fuel, kerosene, heating oils, fuel oils, diesel, gas oil)

53A Unit: kg/m

Range: 610 to 1075 kg/m³

5B Unit: °API

Range: 0 to 85 °API

23B Unit: SGU

Range: 0.6535 to 1.0760 SGU

Default reference temperature

60 °F 0 psi (g)

15 °C 0 kPa (g)

60 °F 0 psi (g)

Default reference pressure

42 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Configure process measurement

API tables, process fluids, measurement units, and default reference values (continued)Table 5-6:

Default reference

Process fluid API table Referred density (API)

53B Unit: kg/m

Range: 653 to 1075 kg/m³

Liquids with a constant density base or known thermal expansion coefficient

Lubricating oils 5D Unit: °API

NGL (natural gas liquids) 23E Unit: SGU 60 °F 0 psi (g)

LPG (liquid petroleum gas) 24E Unit: SGU 60 °F 0 psi (g)

Restriction

These tables are not appropriate for the following process fluids: propane and propane mixes, butane and butane mixes, butadiene and butadiene mixes, isopentane, LNG, ethylene, propylene, cyclohexane, aeromatics, asphalts, and road tars.

6C Unit: °API 60 °F 0 psi (g)

24C Unit: SGU 60 °F 0 psi (g)

54C Unit: kg/m³ 15 °C 0 kPa (g)

Range: −10 to +40 °API

23D Unit: SGU

Range: 0.8520 to 1.1640 SGU

53D Unit: kg/m³

Range: 825 to 1164 kg/m³

temperature

15 °C 0 kPa (g)

60 °F 0 psi (g)

15 °C 0 kPa (g)

Default reference pressure

Set up temperature and pressure data for API referral using ProLink III

The API referral application uses temperature and pressure data in its calculations. You must decide how to provide this data, then perform the required configuration and setup.

Tip

Fixed values for temperature or pressure are not recommended. Using a fixed temperature or pressure value may produce inaccurate process data.

Important

Configuration and Use Manual 43

Configure process measurement

Important

Line pressure data is used in several different measurements and calculations. The transmitter stores only one pressure value, which may be either the external pressure or the configured fixed value. Accordingly, if you choose a fixed pressure for some uses, and an external pressure for others, the external pressure will overwrite the fixed value.

Prerequisites

You must be using gauge pressure.

The pressure device must use the pressure unit that is configured in the transmitter.

If you are using an external temperature device, it must use the temperature unit that is configured in the transmitter.

Procedure

1. Choose Device Tools > Configuration > Process Measurement > API Referral.

2. Choose the method to be used to supply temperature data, and perform the required setup.

Option Description Setup

Internal RTD temperature data

Fieldbus AO function block

Temperature data from the onboard temperature sensor (RTD) is used.

Temperature from an external device is used, supplied via the AO function block.

a. Write 0 to Density Viscosity Meter TB TB > DEN_EnableExtTempFor-

Vis.

a. Write 1 to Density Viscosity Meter TB TB > DEN_EnableExtTempFor-

Vis.

b. Ensure that the AO function block is set up as a temperature

source.

c. Connect the AO function block of the transmitter to the AI

function block of the external temperature device.

3. Set up the pressure input.

a. Ensure that the AO function block is set up as a pressure source.

b. Connect the AO function block of the transmitter to the AI function block of the

external pressure device.

Postrequisites

If you are using external temperature data, verify the external temperature value displayed in the Inputs group on the ProLink III main window .

The current pressure value is displayed in the External Pressure field. Verify that the value is correct.

Need help? If the value is not correct:

• Ensure that the external device and the meter are using the same measurement unit.

• For digital communications:

44 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Configure process measurement

- Verify that the host has access to the required data.

- Verify that the output variable is being correctly received and processed by the

transmitter.

• If necessary, apply an offset.

5.6.2 Set up the API referral application using a fieldbus host

This section guides you through the tasks required to set up and implement the API referral application.

1. Enable the API referral application using a fieldbus host

2. Configure API referral using a fieldbus host

3. Set up temperature and pressure data for API referral using a fieldbus host

Enable the API referral application using a fieldbus host

The API referral application must be enabled before you can perform any setup. If the API referral application was enabled at the factory, you do not need to enable it now.

1. If necessary, disable the concentration measurement application: Write 0 to Density Viscosity Meter TB TB > SNS_EnableCM (OD Index 147).

The concentration measurement application and the API referral application cannot be enabled simultaneously.

2. Enable the API referral application: Write 1 to Density Viscosity Meter TB TB > SNS_EnablePM (OD Index 146).

Configure API referral using a fieldbus host

The API referral parameters specify the API table, measurement units, and reference values to be used in referred density calculations.

Prerequisites

You will need API documentation for the API table that you select.

Depending on your API table, you may need to know the thermal expansion coefficient (TEC) for your process fluid.

You must know the reference temperature and reference pressure that you want to use.

Procedure

1. Specify the API table to use: API Referral TB > API Table Type (OD Index 019).

Each API table is associated with a specific set of equations. Your choice also determines the measurement unit to be used for temperature and pressure, and the default values for reference temperature and reference pressure.

Configuration and Use Manual 45

Configure process measurement

API tables, process fluids, measurement units, and default reference valuesTable 5-7:

Referred density

Process fluid API table

Generalized crude and

5A Unit: °API

JP4

23A Unit: SGU

53A Unit: kg/m

Generalized products

5B Unit: °API (gasoline, jet fuel, aviation fuel, kerosene, heating oils, fuel oils,

23B Unit: SGU

diesel, gas oil)

53B Unit: kg/m

Liquids with a constant density base or known thermal expansion coefficient

6C Unit: °API 60 °F 0 psi (g) 36

24C Unit: SGU 60 °F 0 psi (g) 68

54C Unit: kg/m³ 15 °C 0 kPa (g) 100

Lubricating oils 5D Unit: °API

23D Unit: SGU

53D Unit: kg/m³

NGL (natural gas liq-

23E Unit: SGU 60 °F 0 psi (g) 53 uids)

LPG (liquid petroleum

24E Unit: SGU 60 °F 0 psi (g) 69 gas)

(API)

Range: 0 to 100 °API

Range: 0.6110 to

1.0760 SGU

Range: 610 to 1075 kg/m³

Range: 0 to 85 °API

Range: 0.6535 to

1.0760 SGU

Range: 653 to 1075 kg/m³

Range: −10 to +40 °API

Range: 0.8520 to

1.1640 SGU

Range: 825 to 1164 kg/m³

Default reference temperature

Default reference pressure Fieldbus code

60 °F 0 psi (g) 17

60 °F 0 psi (g) 49

15 °C 0 kPa (g) 81

60 °F 0 psi (g) 18

60 °F 0 psi (g) 50

15 °C 0 kPa (g) 82

60 °F 0 psi (g) 19

60 °F 0 psi (g) 51

15 °C 0 kPa (g) 83

Restriction

These tables are not appropriate for the following process fluids: propane and propane mixes, butane and butane mixes, butadiene and butadiene mixes, isopentane, LNG, LPG, NGL, ethylene, propylene, cyclohexane, aeromatics, asphalts, and road tars.

46 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Configure process measurement

The meter automatically changes the density unit, temperature unit, pressure unit, and reference pressure to match the API table.

2. Refer to the API documentation and confirm your table selection.

a. Verify that your process fluid falls within range for line density, line temperature,

and line pressure.

If your process fluid goes outside any of these limits, the meter will post a status alert and will report line density instead of referred density until the process fluid goes back within range.

b. Verify that the referred density range of the selected table is adequate for your

application.

3. If you chose a C table, enter the Thermal Expansion Coefficient (TEC) for your process fluid: API Referral TB > API_TEC (OD Index 017).

4. If required, set the temperature to which density will be corrected in referred density calculations: API Referral TB > API Reference Temp (OD Index 017).

The default reference temperature is determined by the selected API table.

5. If required, set the temperature to which density will be corrected in referred density calculations: API Referral TB > API Reference Temp (OD Index 017).

The default reference temperature is determined by the selected API table.

Set up temperature and pressure data for API referral using a fieldbus host

The API referral application uses line temperature and line pressure data in its calculations. You must decide how to provide this data, then perform the required configuration and setup.

Tip

Fixed values for temperature or pressure are not recommended. Using a fixed temperature or pressure value may produce inaccurate process data.

Important

Configuration and Use Manual 47

Configure process measurement

Prerequisites

You must be using gauge pressure.

The pressure device must use the pressure unit that is configured in the transmitter.

If you are using an external temperature device, it must use the temperature unit that is configured in the transmitter.

Procedure

1. Choose the method to be used to supply temperature data, and perform the required setup.

Option Description Setup

Internal RTD temperature data

Fieldbus AO function block

Temperature data from the onboard temperature sensor (RTD) is used.

Temperature from an external device is used, supplied via the AO function block.

a. Write 0 to Density Viscosity Meter TB TB > DEN_EnableExtTempFor-

a. Write 1 to Density Viscosity Meter TB TB > DEN_EnableExtTempFor-

b. Ensure that the AO function block is set up as a temperature

c. Connect the AO function block of the transmitter to the AI

Vis.

source.

function block of the external temperature device.

2. Set up the pressure input.

a. Ensure that the AO function block is set up as a pressure source.

b. Connect the AO function block of the transmitter to the AI function block of the

external pressure device.

5.7 Set up concentration measurement

The concentration measurement application calculates concentration from line density and line temperature.

• Preparing to set up concentration measurement (Section 5.7.1)

• Set up concentration measurement using ProLink III (Section 5.7.2)

5.7.1 Preparing to set up concentration measurement

The procedure for setting up concentration measurement application depends on how your device was ordered and how you want to use the application. Review this information before you begin.

Requirements for concentration measurement

To use the concentration measurement application, the following conditions must be met:

48 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Configure process measurement

• The concentration measurement application must be enabled.

• One or more concentration matrices must be stored in your transmitter.

Tip

In most cases, the concentration matrix that you ordered was loaded at the factory. If you need to add concentration matrices and you are using ProLink III, you can load concentration matrices from a file or you can build a custom matrix. If you are using the Field Communicator, you can build a custom matrix but you cannot load a matrix from a file. This manual does not discuss building a custom matrix. For information on building a custom matrix, see Micro Motion Enhanced Density Application: Theory, Configuration, and Use.

• If your concentration matrices use Specific Gravity as the derived variable, the

reference temperature values must be set.

• Temperature Source must be configured and set up.

• One matrix must be selected as the active matrix (the matrix used for

measurement).

Optional tasks in setting up concentration measurement

The following tasks are optional:

• Modifying names and labels

• Configuring operational parameters

- Extrapolation alerts

- Calculation method (matrix or equation)

- Matrix switching

5.7.2 Set up concentration measurement using ProLink III

This section guides you through the tasks required to set up, configure, and implement concentration measurement.

1. Enable the concentration measurement application using ProLink III

2. Load a concentration matrix using ProLink III

3. Set reference temperature values for specific gravity using ProLink III

4. Set up temperature data for concentration measurement using ProLink III

5. Modify matrix names and labels using ProLink III

6. Modify operational parameters for concentration measurement using ProLink III

7. Select the active concentration matrix using ProLink III

Enable the concentration measurement application using ProLink III

The concentration measurement application must be enabled before you can perform any setup. If the concentration measurement application was enabled at the factory, you do not need to enable it now.

1. Choose Device Tools > Configuration > Transmitter Options.

2. If the API referral application is enabled, disable it and click Apply.

Configuration and Use Manual 49

Configure process measurement

3. Set Concentration Measurement to Enabled and click Apply.

Load a concentration matrix using ProLink III

At least one concentration matrix must be loaded onto your transmitter. You can load up to six.

Tip

In many cases, concentration matrices were ordered with the device and loaded at the factory. You may not need to load any matrices.

Prerequisites

The concentration measurement application must be enabled on your device.

The concentration measurement application and the API referral application cannot be enabled simultaneously.

Standard matrices for the concentration measurement application Concentration measurement matrices available by order

For each concentration matrix that you want to load, you need a file containing the matrix data. The ProLink III installation includes a set of standard concentration matrices. Other matrices are available from Micro Motion.

Tips

• If you have a custom matrix on another device, you can save it to a file, then load it to the

current device.

• If you have a matrix file in ProLink II format, you can load it using ProLink III.

You must know the following information for your matrix:

• The derived variable that the matrix is designed to calculate

• The density unit that the matrix was built with

• The temperature unit that the matrix was built with

Important

• All concentration matrices on your transmitter must use the same derived variable.

• If you change the setting of Derived Variable, all existing concentration matrices will be deleted

from transmitter memory. Set Derived Variable before loading concentration matrices.

• If you want the meter to calculate Net Mass Flow Rate, the derived variable must be set to

Mass Concentration (Density). If your matrix is not set up for Mass Concentration (Density), contact Micro Motion for assistance or for a custom matrix.

• If you want the meter to calculate Net Volume Flow Rate, the derived variable must be set to

Volume Concentration (Density). If your matrix is not set up for Volume Concentration (Density), contact Micro Motion for assistance or for a custom matrix.

If you plan to use matrix switching, you must identify the two matrices to be used for switching and load them into Slot 1 and Slot 2.

50 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Configure process measurement

Procedure

1. Choose Device Tools > Configuration > Process Measurement > Line Density and set Density Unit to the density unit used by your matrix.

Important

When you load a matrix, if the density unit is not correct, concentration data will be incorrect. The density units must match at the time of loading. You can change the density unit after the matrix is loaded.

2. Choose Device Tools > Configuration > Process Measurement > Line Temperature and set Temperature Unit to the temperature unit used by your matrix.

Important

When you load a matrix, if the temperature unit is not correct, concentration data will be incorrect. The temperature units must match at the time of loading. You can change the temperature unit after the matrix is loaded.

3. Choose Device Tools > Configuration > Process Measurement > Concentration Measurement.

The Concentration Measurement window is displayed. It is organized into steps that allow you to perform several different setup and configuration tasks. For this task, you will not use all the steps.

4. In Step 1, ensure that the setting of Derived Variable matches the derived variable used by your matrix. If it does not, change it as required and click Apply.

Important

If you change the setting of Derived Variable, all existing concentration matrices will be deleted from transmitter memory. Verify the setting of Derived Variable before continuing.

5. Load one or more matrices.

a. In Step 2, set Matrix Being Configured to the location (slot) to which the matrix will

be loaded.

b. Click Load Matrix from a File, navigate to the matrix file on your computer, and load

it.

c. Repeat until all required matrices are loaded.

6. (Optional) Set the density and temperature units to the units you want to use for measurement.

Related information

Matrix switching Derived variables and calculated process variables Configure Density Measurement Unit Configure Temperature Measurement Unit

Configuration and Use Manual 51

Configure process measurement

Set reference temperature values for specific gravity using ProLink III

When Derived Variable is set to Specific Gravity, you must set the reference temperature to be used for density measurement and the reference temperature of water, and then verify the density of water at the configured reference temperature. The two reference temperature values affect specific gravity measurement.

Additionally, the two reference temperature values affect any concentration process variable that is calculated by equation, rather than by matrix, because the equations are based on specific gravity.

Typically, the two reference temperature values are the same, but this is not required.

Restriction

If Derived Variable is not set to Specific Gravity, do not change any of these values. These are set by the active concentration matrix.

Procedure

1. Choose Device Tools > Configuration > Process Measurement > Concentration Measurement.

The Concentration Measurement window is displayed. It is organized into steps that allow you to perform several different setup and configuration tasks. For this task, you will not use all the steps.

2. Scroll to Step 2, set Matrix Being Configured to the matrix you want to modify, and click Change Matrix.

3. Scroll to Step 3, then perform the following actions:

a. Set Reference Temperature for Referred Density to the temperature to which line

density will be corrected for use in the specific gravity calculation.

b. Set Reference Temperature for Water to the water temperature that will be used in

the specific gravity calculation.

c. Set Water Density at Reference Temperature to the density of water at the specified

reference temperature.

The transmitter automatically calculates the density of water at the specified temperature. The new value will be displayed the next time that transmitter memory is read. You can enter a different value if you want to.

4. Click the Apply button at the bottom of Step 3.

Related information

Using equations to calculate specific gravity, °Baumé, °Brix, °Plato, and °Twaddell

52 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Configure process measurement

Set up temperature data for concentration measurement using ProLink III

The concentration measurement application uses line temperature data in its calculations. You must decide how to provide this data, then perform the required configuration and setup. Temperature data from the on-board temperature sensor (RTD) is always available. You can set up an external temperature device and use external temperature data if you want to.

The temperature setup that you establish here will be used for all concentration measurement matrices on this meter.

Important

Prerequisites

If you plan to poll an external device, the primary mA output must be wired to support HART communications.

Procedure

1. Choose Device Tools > Configuration > Process Measurement > Concentration Measurement.

The Concentration Measurement window is displayed. It is organized into steps that allow you to perform several different setup and configuration tasks. For this task, you will not use all the steps.

2. Scroll to Step 4.

3. Choose the method to be used to supply temperature data, and perform the required setup.

Option Description Setup

Internal RTD temperature data

Fieldbus AO function block

Temperature data from the onboard temperature sensor (RTD) is used.

Temperature from an external device is used, supplied via the AO function block.

a. Write 0 to Density Viscosity Meter TB TB > DEN_EnableExtTempFor-

Vis.

a. Write 1 to Density Viscosity Meter TB TB > DEN_EnableExtTempFor-

Vis.

b. Ensure that the AO function block is set up as a temperature

source.

c. Connect the AO function block of the transmitter to the AI

function block of the external temperature device.

Configuration and Use Manual 53

Configure process measurement

Postrequisites

If you are using external temperature data, verify the external temperature value displayed in the Inputs group on the ProLink III main window .

Need help? If the value is not correct:

• Ensure that the external device and the meter are using the same measurement unit.

• For digital communications:

• If necessary, apply an offset.

Modify matrix names and labels using ProLink III

For convenience, you can change the name of a concentration matrix and the label used for its measurement unit. This does not affect measurement.

1. Choose Device Tools > Configuration > Process Measurement > Concentration Measurement.

- Verify that the host has access to the required data.

- Verify that the output variable is being correctly received and processed by the

transmitter.

The Concentration Measurement window is displayed. It is organized into steps that allow you to perform several different setup and configuration tasks. For this task, you will not use all the steps.

2. Scroll to Step 2, set Matrix Being Configured to the matrix you want to modify, and click Change Matrix.

3. Scroll to Step 3, then perform the following actions:

a. Set Concentration Units Label to the label that will be used for the concentration

unit.

b. If you set Concentration Units Label to Special, enter the custom label in User-Defined

Label.

c. In Matrix Name, enter the name to be used for the matrix.

4. Click the Apply button at the bottom of Step 3.

Modify operational parameters for concentration measurement using ProLink III

You can enable and disable extrapolation alerts, set extrapolation alert limits, and control matrix switching. These parameters control the behavior of the concentration measurement application but do not affect measurement directly. Additionally, for certain types of concentration measurement, you can select the calculation method to be used.

1. Choose Device Tools > Configuration > Process Measurement > Concentration Measurement.

The Concentration Measurement window is displayed. It is organized into steps that allow you to perform several different setup and configuration tasks. For this task, you will not use all the steps.

54 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Configure process measurement

2. Scroll to Step 2, set Matrix Being Configured to the matrix you want to modify, and click Change Matrix.

3. Scroll to Step 4.

4. Set up extrapolation alerts.

Each concentration matrix is built for a specific density range and a specific temperature range. If line density or line temperature goes outside the range, the transmitter will extrapolate concentration values. However, extrapolation may affect accuracy. Extrapolation alerts are used to notify the operator that extrapolation is occurring, and can also be used to initiate matrix switching. Each concentration matrix has its own extrapolation alert settings.

a. Set Extrapolation Alert Limit to the point, in percent, at which an extrapolation alert

will be posted.

b. Enable or disable the high and low limit alerts for temperature and density, as

desired, and click Apply.

Important

If you plan to use matrix switching, you must enable the appropriate extrapolation alerts.

Example: If Extrapolation Alert Limit is set to 5%, High Extrapolation Limit (Temperature) is enabled, and the matrix is built for a temperature range of 40 °F to 80 °F, an extrapolation alert will be posted if line temperature goes above 82 °F.

5. If applicable, use the Equation Selection parameter to specify the type of calculation to be used, and click Apply.

This option is available only when Derived Variable is set to Specific Gravity.

Option Description

Specific Gravity

Baume Specific gravity is calculated as described above, and the result is used in the

Brix Specific gravity is calculated as described above and the result is used in the

Plato Specific gravity is calculated as described above, and the result is used n the

Twaddell Specific gravity is calculated as described above, and the result is used in the

Referred density is calculated from the matrix. The result is used in the specific gravity equation. The output is specific gravity.

°Baumé equation. The output is specific gravity and °Baumé (light or heavy).

°Brix equation. The output is specific gravity and °Brix.

°Plato equation. The output is specific gravity and °Plato.

°Twaddell equation. The output is specific gravity and °Twaddell.

6. Enable or disable Matrix Switching as desired, and click Apply.

When matrix switching is enabled and an extrapolation alert occurs, the transmitter automatically switches from the matrix in Slot 1 to the matrix in Slot 2, or vice versa. This occurs only if no extrapolation alert would be generated by the other matrix. Matrix switching is not applicable to any other slots.

Configuration and Use Manual 55

Configure process measurement

Related information

Select the active concentration matrix using ProLink III

You must select the concentration matrix to be used for measurement. Although the transmitter can store up to six concentration matrices, only one matrix can be used for measurement at any one time.

1. Choose Device Tools > Configuration > Process Measurement > Concentration Measurement.

2. Scroll to Step 2, set Active Matrix to the matrix you want to use and click Change Matrix.

Using equations to calculate specific gravity, °Baumé, °Brix, °Plato, and °Twaddell

The Concentration Measurement window is displayed. It is organized into steps that allow you to perform several different setup and configuration tasks. For this task, you will not use all the steps.

Note

To support matrix switching, you must select the matrix in Slot 1 or the matrix in Slot 2.

5.7.3 Using equations to calculate specific gravity, °Baumé, °Brix, °Plato, and °Twaddell

Whenever the derived variable is set to Specific Gravity, you have the option of using equations to calculate °Baumé, °Brix,°Plato, and °Twaddell, instead of matrix referral. Whenever the equation method is used, the active matrix is used to measure referred density. This value is used to calculate specific gravity. The result of the specific gravity calculation is then used in the equations used to calculate °Baumé, °Brix, °Plato, or °Twaddell.

Specific gravity is always calculated using the two reference temperatures that are specified during concentration measurement configuration.

If you are measuring in °Baumé, the meter will automatically select the appropriate equation according to the specific gravity of the process fluid, and will switch equations when specific gravity crosses 1.0.

Equations used for specific gravity, °Baumé, °Brix, °Plato, and °TwaddellTable 5-8:

Current value of

Equation

Specific Gravity N/A

°Baumé 1.0 or greater

specific gravity Equation

SG =

(°Baumé heavy)

Less than 1.0 (°Baumé light)

°Baumé = 145 −

°Baumé =

RefTemp

WaterRefTemp

145

140

− 130

56 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Equations used for specific gravity, °Baumé, °Brix, °Plato, and °Twaddell (continued)Table 5-8:

Current value of

Equation

°Brix N/A

°Plato N/A

°Twaddell N/A

specific gravity Equation

°Brix = 318.906 −

°Plato =(668.72 × SG)− 463.37 −(205.347 × SG

°Twaddell = 200 ×(SG − 1

384.341

(

66.1086

)

(

)

Configure process measurement

)

RefTemp

WaterRefTemp

Related information

Set reference temperature values for specific gravity using ProLink III

Specific gravity of process fluid

Density of process fluid at Reference Temperature for Referred Density, as measured using the active concentration matrix

Density of water at Reference Temperature for Water

5.7.4 Matrix switching

Matrix switching can be used to measure different process fluids without resetting the active matrix manually. Matrix switching can also be used to increase measurement accuracy.

When matrix switching is enabled, the meter automatically switches between the matrices in Slot 1 and Slot 2 whenever an extrapolation alert is present for the active matrix but would not be generated by the other matrix. For example:

• The matrix in Slot 2 is active, the high-density extrapolation alert is enabled, and

matrix switching is enabled. Line density goes above the range of the matrix plus the extrapolation limit. The meter posts an alert, then checks the range of the matrix in Slot 1. No extrapolation alert would be posted, so the meter automatically switches to the matrix in Slot 1.

• The matrix in Slot 2 is active, the high-density extrapolation alert is enabled, and

matrix switching is enabled. Line density goes above the range of the matrix plus the extrapolation limit. The meter posts an alert, then checks the range of the matrix in Slot 1. The current line density would also generate an extrapolation alert for this matrix, so the meter does not switch.

You can control the conditions that trigger matrix switching by enabling or disabling specific extrapolation alerts. For example, if the low-density and high-density extrapolation alerts are enabled, but the low-temperature and high-temperature extrapolation alerts are disabled, matrix switching will be triggered only by changes in line density. Changes in line temperature will not trigger matrix switching.

Depending on your application, you may need to set up your matrices and extrapolation limits so that there is no overlap in density and/or temperature, or so that there is slight overlap.

Configuration and Use Manual 57

Configure process measurement

Example: Using matrix switching to measure different process fluids

The line may contain either of two process fluids, depending on the current product. The matrix in Slot 1 is appropriate for the first process fluid. The matrix in Slot 2 is appropriate for the second process fluid. Whenever the line is switched, an extrapolation alert is posted for the current matrix, and the meter automatically switches to use the other matrix.

To ensure that the correct matrix is used, there can be no overlap between the ranges of the two matrices. In other words:

• If you are using density to trigger matrix switching, there can be no density values

• If you are using temperature to trigger matrix switching, there can be no

• If you are using both density and temperature to trigger matrix switching, there can

Example: Using matrix switching to increase measurement accuracy

that are within the ranges of both matrices, after the extrapolation limits are applied.

temperature values that are within the ranges of both matrices, after the extrapolation limits are applied.

be no density or temperature values that are within the ranges of both matrices, after the extrapolation limits are applied.

For some process fluids, measurement accuracy is increased when the matrix has a narrower temperature or density range. By using two matrices with adjacent or slightly overlapping ranges, increased accuracy is available over a wider range of process variation.

To ensure continuous process measurement, there should be no gap between the ranges, after the extrapolation limits are applied.

58 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Configure device options and preferences

6 Configure device options and

preferences

Topics covered in this chapter:

• Configure the transmitter display

• Enable or disable operator actions from the display

• Configure security for the display menus

• Configure alert handling

• Configure informational parameters

6.1 Configure the transmitter display

You can control the process variables shown on the display and a variety of display behaviors.

Note

• Configure the language used for the display (Section 6.1.1)

• Configure the process variables and diagnostic variables shown on the display

(Section 6.1.2)

• Configure the number of decimal places (precision) shown on the display

(Section 6.1.3)

• Configure the refresh rate of data shown on the display (Section 6.1.4)

• Enable or disable automatic scrolling through the display variables (Section 6.1.5)

6.1.1 Configure the language used for the display

Display OFF-LINE MAINT > OFF-LINE CONFG > DISPLAY > LANG

ProLink III Device Tools > Configuration > Transmitter Display > General

Fieldbus host Local Display TB > Language (OD Index 018)

Overview

Display Language controls the language used for process data and menus on the display.

Configuration and Use Manual 59

Configure device options and preferences

Note

Procedure

Select the language you want to use.

The languages available depend on your transmitter model and version.

6.1.2 Configure the process variables and diagnostic variables shown on the display

Display Not available

ProLink III Device Tools > Configuration > Transmitter Display > Display Variables

Fieldbus host Local Display TB > Display Variable x (OD Index 019–033)

Overview

You can control the process variables and diagnostic variables shown on the display, and the order in which they appear. The display can scroll through up to 15 variables in any order you choose. In addition, you can repeat variables or leave slots unassigned.

Restriction

You cannot set Display Variable 1 to None or to a diagnostic variable. Display Variable 1 must be set to a process variable.

Note

Procedure

For each display variable you want to change, assign the process variable you want to use.

60 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Configure device options and preferences

6.1.3 Configure the number of decimal places (precision) shown on the display

Display Not available

ProLink III Device Tools > Configuration > Transmitter Display > Display Variables

Fieldbus host Local Display TB > Process Variable (OD Index 034)

Local Display TB > Number of Decimals (OD Index 035)

Overview

You can specify the number of decimal places (precision) that are shown on the display for each process variable or diagnostic variable. You can set the precision independently for each variable.

The display precision does not affect the actual value of the variable or the value used in calculations.

Note

Procedure

1. Select a variable.

2. Set Number of Decimal Places to the number of decimal places you want shown when

the process variable or diagnostic variable appears on the display.

For temperature and density process variables, the default value is 2 decimal places. For all other variables, the default value is 4 decimal places. The range is 0 to 5.

Tip

The lower the precision, the greater the change must be for it to be reflected on the display. Do not set the precision too low or too high to be useful.

6.1.4 Configure the refresh rate of data shown on the display

Display OFF-LINE MAINT > OFF-LINE CONFG > DISPLAY > RATE

ProLink III Device Tools > Configuration > Transmitter Display > Display Variables

Fieldbus host Local Display TB > Refresh Rate (OD Index 036)

Overview

You can set Refresh Rate to control how frequently data is refreshed on the display.

Configuration and Use Manual 61

Configure device options and preferences

Note

Procedure

Set Refresh Rate to the desired value.

The default value is 1000 milliseconds. The range is 100 milliseconds to 10,000 milliseconds (10 seconds).

6.1.5 Enable or disable automatic scrolling through the display variables

Display OFF-LINE MAINT > OFF-LINE CONFG > DISPLAY > AUTO SCRLL

ProLink III Device Tools > Configuration > Transmitter Display > General

Fieldbus host Local Display TB > Auto Scroll (OD Index 010)

Local Display TB > Scroll Time (OD Index 016)

Overview

You can configure the display to automatically scroll through the configured display variables or to show a single display variable until the operator activates Scroll. When you set automatic scrolling, you can also configure the length of time each display variable is displayed.

Note

Procedure

1. Enable or disable Auto Scroll as desired.

Option Description

Enabled The display automatically scrolls through each display variable as specified

by Scroll Rate. The operator can move to the next display variable at any time using Scroll.

Disabled (default)

The display shows Display Variable 1 and does not scroll automatically. The operator can move to the next display variable at any time using Scroll.

2. If you enabled Auto Scroll, set Scroll Rate as desired.

The default value is 10 seconds.

62 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Configure device options and preferences

Tip

Scroll Rate may not be available until you apply Auto Scroll.

6.2 Enable or disable operator actions from the display

You can configure the transmitter to let the operator perform specific actions using the display.

Note

• Enable or disable the Acknowledge All Alerts display command (Section 6.2.1)

6.2.1 Enable or disable the Acknowledge All Alerts display command

Display OFF-LINE MAINT > OFF-LINE CONFG > DISPLAY > ACK

ProLink III Device Tools > Configuration > Transmitter Display > Ack All

Fieldbus host Local Display TB > Acknowledge All Alerts (OD Index 014)

Overview

You can configure whether or not the operator can use a single command to acknowledge all alerts from the display.

Note

Procedure

1. Ensure that the alert menu is accessible from the display.

To acknowledge alerts from the display, operators must have access to the alert menu.

2. Enable or disable Acknowledge All Alerts as desired.

Configuration and Use Manual 63

Configure device options and preferences

Option Description

Enabled (default) Operators can use a single display command to acknowledge all alerts at

once.

Disabled Operators cannot acknowledge all alerts at once. Each alert must be ac-

knowledged separately.

6.3 Configure security for the display menus

Display OFF-LINE MAINT > OFF-LINE CONFG > DISPLAY

ProLink III Device Tools > Configuration > Transmitter Display > Display Security

Fieldbus host Local Display TB > Offline Menu (OD Index 011)

Local Display TB > Offline Menu Passcode Required (OD Index 012)

Local Display TB > Alert Menu (OD Index 013)

Overview

You can control operator access to different sections of the display off-line menu. You can also configure a password to control access.

Note

Procedure

1. To control operator access to the maintenance section of the off-line menu, enable

or disable Off-Line Menu.

Option Description

Enabled (default) Operator can access the maintenance section of the off-line menu. This

access is required for configuration and calibration, including Known Density Verification.

Disabled Operator cannot access the maintenance section of the off-line menu.

2. To control operator access to the alert menu, enable or disable Alert Menu.

Option Description

Enabled (default) Operator can access the alert menu. This access is required to view and

acknowledge alerts, but is not required for Known Density Verification, configuration, or calibration.

64 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Configure device options and preferences

Option Description

Disabled Operator cannot access the alert menu.

Note

The transmitter status LED changes color to indicate that there are active alerts, but does not show specific alerts.

3. To require a password for access to the off-line menu, enable or disable Off-Line

Password.

Option Description

Enabled Operator is prompted for the off-line password at entry to the off-line

menu.

Disabled (default) No password is required for entry to the off-line menu.

4. Set Off-Line Password to the desired value.

The default value is 1234. The range is 0000 to 9999.

Tip

Record your password for future reference.

6.4 Configure alert handling

The alert handling parameters control the transmitter’s response to process and device conditions.

• Configure Fault Timeout (Section 6.4.1)

• Configure Status Alert Severity (Section 6.4.2)

6.4.1 Configure Fault Timeout

Display Not available

ProLink III Device Tools > Configuration > Fault Processing

Fieldbus host Diagnostic TB > Fault Timeout Value (OD Index 016)

Overview

Fault Timeout controls the delay before fault actions are performed.

Configuration and Use Manual 65

Configure device options and preferences

Restriction

Fault Timeout is applied only to the following alerts (listed by Status Alert Code): A003, A004, A005, A008, A016, A017, A033. For all other alerts, fault actions are performed as soon as the alert is detected.

Procedure

Set Fault Timeout as desired.

The default value is 0 seconds. The range is 0 to 60 seconds.

If you set Fault Timeout to 0, fault actions are performed as soon as the alert condition is detected.

The fault timeout period begins when the transmitter detects an alert condition. During the fault timeout period, the transmitter continues to report its last valid measurements.

If the fault timeout period expires while the alert is still active, the fault actions are performed. If the alert condition clears before the fault timeout expires, no fault actions are performed.

6.4.2 Configure Status Alert Severity

Display Not available

ProLink III Device Tools > Configuration > Alert Severity

Fieldbus host DiagnosticsTB > Alert Index (OD Index 017)

DiagnosticsTB > Alert Severity (OD Index 018)

Overview

Use Status Alert Severity to control the fault actions that the transmitter performs when it detects an alert condition.

Restrictions

• For some alerts, Status Alert Severity is not configurable.

• For some alerts, Status Alert Severity can be set only to two of the three options.

Tip

Micro Motion recommends using the default settings for Status Alert Severity unless you have a specific requirement to change them.

Procedure

1. Select a status alert.

2. For the selected status alert, set Status Alert Severity as desired.

66 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Option Description

Fault Actions when fault is detected:

• The alert is posted to the Alert List.

• Outputs go to the configured fault action (after Fault Timeout has expired, if ap-

plicable).

• Digital communications go to the configured fault action (after Fault Timeout

has expired, if applicable).

• The status LED (if available) changes to red or yellow (depending on alert se-

verity).

Actions when alert clears:

• Outputs return to normal behavior.

• Digital communications return to normal behavior.

• The status LED returns to green.

Informational

Actions when fault is detected:

• The alert is posted to the Alert List.

• The status LED (if available) changes to red or yellow (depending on alert se-

verity).

Actions when alert clears:

• The status LED returns to green.

Configure device options and preferences

Status alerts and options for Status Alert Severity

Status alerts and Status Alert SeverityTable 6-1:

Alert number Alert title Default severity User can reset severity

A001 EEPROM Error Fault No

A002 RAM Error Fault No

A003 No Sensor Response Fault Yes

A004 Temperature Overrange Fault No

A005 Velocity Overrange Fault Yes

A006 Characterization Required Fault Yes

A008 Density Overrange Fault Yes

A009 Transmitter Initializing/Warm-

ing Up

A010 Calibration Failure Fault No

A011 Zero Calibration Failed: Low Fault Yes

A012 Zero Calibration Failed: High Fault Yes

A013 Zero Calibration Failed: Unsta-

ble

A014 Transmitter Failure Fault No

A016 Sensor Temperature (RTD)

Failure

Ignore Yes

Fault Yes

Configuration and Use Manual 67

Configure device options and preferences

Status alerts and Status Alert Severity (continued)Table 6-1:

Alert number Alert title Default severity User can reset severity

A017 Sensor Case Temperature

(RTD) Failure

A018 EEPROM Error (Transmitter) [please verify]

A019 RAM Error (Transmitter) [please verify]

A020 Calibration Factors Missing Fault Yes

A021 Transmitter/Sensor/Software

Mismatch

A026 Sensor/Transmitter Communi-

cations Failure

A029 Internal Electronics Failure Fault No

A030 Incorrect Board Type Fault No

A033 Insufficient Pickoff Signal Fault Yes

A037 Sensor Check Failed Fault Yes

A102 Drive Overrange Informational Yes

A104 Calibration in Progress Informational To Informational or Ignore only

A105 Two-Phase Flow Informational Yes

A107 Power Reset Occurred Informational Yes

A115 No External Input or Polled Da-taInformational Yes

Informational Yes

[please verify]

Informational

Fault No

[please verify]

Informational

Yes

[please verify]

Yes

[please verify]

Yes

A116 Temperature Overrange (API

Referral)

A117 Density Overrange (API Refer-

ral)

A120 Curve Fit Failure (Concentra-

tion)

A121 Extrapolation Alert (Concentra-

tion)

A122 Pressure Overrange (API Refer-

ral)

A133 EEPROM Error (Display) Informational Yes

A134 Tube-Case Temperature Differ-

ence Overrange

A136 Incorrect Display Type Informational Yes

Informational Yes

Informational No

Informational Yes

68 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Configure device options and preferences

6.5 Configure informational parameters

Display Not available

ProLink III Device Tools > Configuration > Meter Information

Fieldbus host Device Info TB

Overview

The informational parameters can be used to identify or describe your meter. They are not used in process measurement and they are not required.

Procedure

Enter data as desired.

Parameter Description

Meter Serial Number

Message A message to be stored in device memory. The message can contain up to

Descriptor A description of this device. The description can contain up to 16 characters.

Date A static date (not updated by the meter). Enter the date in the form mm/dd/yyyy.

Flange Type The sensor flange type for this device. Obtain the value from the documents

The serial number of the device. Enter the value from the device tag.

32 characters.

shipped with the device or from a code in the model number.

Tips

• The Field Communicator does not support all informational parameters. If you need to configure

all of the informational parameters, use ProLink III.

• The Field Communicator allows you to configure HART Tag and HART Long Tag from this location.

These parameters are replicated from Configure > Manual Setup > HART > Communications. These parameters are used in HART communications.

Configuration and Use Manual 69

Configure device options and preferences

70 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Completing the configuration

7 Completing the configuration

Topics covered in this chapter:

• Back up transmitter configuration

• Return function blocks to In Service (Auto) mode

7.1 Back up transmitter configuration

ProLink II and ProLink III provide a configuration upload/download function which allows you to save configuration sets to your PC. This allows you to back up and restore your transmitter configuration. It is also a convenient way to replicate a configuration across multiple devices.

Restriction

This function is not available with any other communications tools.

Procedure

To back up the transmitter configuration using ProLink III:

1. Choose Device Tools > Configuration Transfer > Save or Load Configuration Data.

2. In the Configuration groupbox, select the configuration data you want to save.

3. Click Save, then specify a file name and location on your computer.

4. Click Start Save.

The backup file is saved to the specified name and location. It is saved as a text file and can be read using any text editor.

7.2 Return function blocks to In Service (Auto) mode

Display Not available

ProLink III Not applicable

Fieldbus host All TBs > MODE_BLOCK (OD Index Number 005)

Overview

After modifying function block parameters, the fieldbus function blocks must be placed in service (Auto) mode before you return the device to operation.

Configuration and Use Manual 71

Completing the configuration

72 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Operations, maintenance, and troubleshooting

Part III

Operations, maintenance, and troubleshooting

Chapters covered in this part:

• Transmitter operation

• Measurement support

• Troubleshooting

Configuration and Use Manual 73

Operations, maintenance, and troubleshooting

74 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

8 Transmitter operation

Topics covered in this chapter:

• Record the process variables

• View process variables

• View and acknowledge status alerts

8.1 Record the process variables

Micro Motion suggests that you make a record of specific process variable measurements, including the acceptable range of measurements, under normal operating conditions. This data will help you recognize when the process or diagnostic variables are unusually high or low, and may help you diagnose and troubleshoot application issues.

Procedure

Transmitter operation

Record the following process and diagnostic variables, under normal operating conditions.

Variable

Density, Concentration, or °API

Velocity

Line Temperature

Tube-Case Temperature Difference

Sensor Time Period

Input Voltage

Drive Gain

Typical average Typical high Typical low

8.2 View process variables

Process variables provide information about the state of the process fluid, such as flow rate, density, and temperature, as well as running totals. Process variables can also provide data about flowmeter operation, such as drive gain and pickoff voltage. This information can be used to understand and troubleshoot your process.

Measurement

• View process variables using the display (Section 8.2.1)

• View process variables and other data using ProLink III (Section 8.2.2)

Configuration and Use Manual 75

Transmitter operation

8.2.1 View process variables using the display

View the desired process variable(s).

The display shows the configured display variables. For each display variable, the display reports the abbreviated name of the process variable (for example, DENS for density), the current value of that process variable, and the associated unit of measure (for example, G/ CM3).

If Auto Scroll is enabled, the display cycles through the display variables, showing each display variable for a user-specified number of seconds. Whether or not Auto Scroll is enabled, you can activate Select to move to the next display variable.

Note

Transmitter display featuresFigure 8-1:

A. Status LED B. Display (LCD panel) C. Process variable D. Scroll optical switch E. Optical switch indicator: turns red when either Scroll or Select is activated F. Select optical switch G. Unit of measure for process variable H. Current value of process variable

76 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Transmitter operation

8.2.2 View process variables and other data using ProLink III

Monitor process variables, diagnostic variables, and other data to maintain process quality.

ProLink III automatically displays process variables, diagnostic variables, and other data on the main screen.

Tip

ProLink III allows you to choose the process variables that appear on the main screen. You can also choose whether to view data in Analog Gauge view or digital view, and you can customize the gauge settings. For more information, see the ProLink III user manual.

8.3 View and acknowledge status alerts

The transmitter posts status alerts whenever a process variable exceeds its defined limits or the transmitter detects a fault condition. You can view active alerts, and you can acknowledge alerts. Acknowledging alerts is not required.

• View and acknowledge alerts using the display (Section 8.3.1)

• View and acknowledge alerts using ProLink III (Section 8.3.2)

• View alerts using a fieldbus host (Section 8.3.3)

8.3.1 View and acknowledge alerts using the display

You can view a list containing all alerts that are active, or inactive but unacknowledged.

Note

Only Fault and Informational alerts are listed. The transmitter automatically filters out alerts with Status Alert Severity set to Ignore.

Note

Prerequisites

Operator access to the alert menu must be enabled (default setting). If operator access to the alert menu is disabled, you must use another method to view or acknowledge status alerts.

Procedure

See Figure 8‐2.

Configuration and Use Manual 77

Transmitter operation

Using the display to view and acknowledge the status alertsFigure 8-2:

Scroll and Select simultaneously

for 4 seconds

SEE ALARM

Select

Yes

Is ACK ALL enabled?

Alarm code

EXIT

Select

ScrollSelect

Active/

unacknowledged

alarms?

Yes

ACK ALL

Yes

NoYes

NO ALARM

Scroll

Select

Yes

Select

ACK

Scroll

EXIT

78 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Postrequisites

• To clear the following alerts, you must correct the problem, acknowledge the alert,

then power-cycle the transmitter: .

• For all other alerts:

- If the alert is inactive when it is acknowledged, it will be removed from the list.

- If the alert is active when it is acknowledged, it will be removed from the list

when the alert condition clears.

Related information

Alert data in transmitter memory

8.3.2 View and acknowledge alerts using ProLink III

You can view a list containing all alerts that are active, or inactive but unacknowleged. From this list, you can acknowlege individual alerts or choose to acknowledge all alerts at once.

1. View alerts on the ProLink III main screen under Alerts.

Transmitter operation

All active or unacknowledged alerts are listed, and displayed according to the following categories:

Category Description

Failed: Fix Now A meter failure has occurred and must be addressed immediately.

Maintenance: Fix Soon A condition has occurred that can be fixed at a later time.

Advisory: Informational A condition has occurred, but requires no maintenance from you.

Notes

• All fault alerts are displayed in the Failed: Fix Now category.

• All information alerts are displayed in either the Maintenance: Fix Soon category or the

Advisory: Informational category. The category assignment is hard-coded.

• The transmitter automatically filters out alerts with Alert Severity set to Ignore.

2. To acknowledge a single alert, check the Ack checkbox for that alert. To acknowledge all alerts at once, click Ack All.

Postrequisites

• To clear the following alerts, you must correct the problem, acknowledge the alert,

then power-cycle the transmitter: .

• For all other alerts:

- If the alert is inactive when it is acknowledged, it will be removed from the list.

- If the alert is active when it is acknowledged, it will be removed from the list

when the alert condition clears.

Configuration and Use Manual 79

Transmitter operation

Related information

Alert data in transmitter memory

8.3.3 View alerts using a fieldbus host

Whenever an alert condition occurs, the transmitter sets the fieldbus output status to Bad or Uncertain. It also posts a Field Diagnostics alert. You can determine which alert and alert condition is active and use this information to choose the appropriate response.

• To read alert status for an AI function block or the AO function block, read the

BLOCK_ERR index (OD Index 6).

• To obtain more detailed information about active alerts:

1. Identify the active alerts by reading the following parameters from the resource

block:

- FD_FAIL_ACTIVE (OD Index 43)

- FD_OFFSPEC_ACTIVE (OD Index 44)

- FD_MAINT_ACTIVE (OD Index 45)

- FD_CHECK_ACTIVE (OD Index 46)

2. For each active alert, obtain the alert detail by reading the status words (OD

Index 11, 12, 13, 14, 114) from the Diagnostic transducer block.

Related information

Alert data in transmitter memory Resource block Diagnostic transducer block and related information

8.3.4 Alert data in transmitter memory

The transmitter maintains three sets of data for every alert that is posted.

For each alert occurrence, the following three sets of data are maintained in transmitter memory:

• Alert List

• Alert Statistics

• Recent Alerts

Alert data in transmitter memoryTable 8-1:

Transmitter action if condition occurs

Alert data structure

Alert List As determined by the alert status bits, a list of:

Contents Clearing

Cleared and regenerated with every transmit-

• All currently active alerts

• All previously active alerts that have not

been acknowledged

ter power cycle

80 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Transmitter operation

Alert data in transmitter memory (continued)Table 8-1:

Transmitter action if condition occurs

Alert data structure

Alert Statistics One record for each alert (by alert number)

Recent Alerts 50 most recent alert postings or alert clearings Not cleared; maintained across transmitter

Contents Clearing

Not cleared; maintained across transmitter that has occurred since the last master reset. Each record contains:

• A count of the number of occurrences

• Timestamps for the most recent posting

and clearing

power cycles

Configuration and Use Manual 81

Transmitter operation

82 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Measurement support

9 Measurement support

Topics covered in this chapter:

• Perform the Known Density Verification procedure

• Adjust density measurement with Density Offset or Density Meter Factor

• Perform density offset calibration

• Adjust temperature measurement with Temperature Offset

• Adjust concentration measurement with Trim Offset

• Adjust concentration measurement with Trim Offset and Trim Slope

• Set up user‐defined calculations

9.1 Perform the Known Density Verification procedure

The Known Density Verification procedure is used to verify that the meter's current operation matches the factory baseline. If the meter passes the test, the meter does not have any physical problems such as denting, bending, twisting, erosion, or corrosion.

• Perform the Known Density Verification procedure using the display (Section 9.1.1)

• Perform the Known Density Verification procedure using ProLink III (Section 9.1.2)

• Perform the Known Density Verification procedure using a fieldbus host

(Section 9.1.3)

9.1.1 Perform the Known Density Verification procedure using the display

Note

Prerequisites

Power down the meter, remove the meter from the process, and place it in a protected stable environment.

Ensure that the sensor tubes are clean and dry.

Minimize variation in ambient temperature.

Configuration and Use Manual 83

Measurement support

Eliminate or minimize vibration.

Power up the meter.

Procedure

1. Enter the Off-Line Maintenance menu and scroll to RUN KDV.

2. Set Alt to the value that is closest to the altitude of your meter, measured from sea

level.

a. Activate SCROLL to move through the list of options.

The options are 0000, 1000 feet, 2000 feet, 3000 feet, 4000 feet, 5000 feet, 6000 feet, 500 meters, 1000 meters, and 2000 meters.

b. When the correct value appears, activate SELECT and save the value to the

meter.

3. When START KDV appears, activate SELECT.

4. Wait while the meter collects and analyzes process data.

This step should be complete in approximately 20 seconds.

5. Check the results in the Results data display.

• If all process variables passed the tests, no action is required. Click Close to exit

the wizard.

• If one or more process variables failed the test:

- For problems with Line Temperature, Case Temperature, or Tube-Case

Temperature Difference, verify that the ambient temperature of the meter is stable, and that the meter temperature has stabilized in the test location. Then retry the Known Density Verification procedure.

- For problems with Verification Time Period Signal or Drive Gain, ensure that

the meter is clean and dry. Then retry the Known Density Verification procedure.

- If the Known Density Verification procedure continues to fail, contact

Micro Motion customer service.

9.1.2 Perform the Known Density Verification procedure using ProLink III

Prerequisites

Power down the meter, remove the meter from the process, and place it in a protected stable environment.

Ensure that the sensor tubes are clean and dry.

Minimize variation in ambient temperature.

84 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Measurement support

Eliminate or minimize vibration.

Power up the meter.

Procedure

1. Choose Device Tools > Diagnostics > Known Density Verification.

2. (Optional) Enter identification data.

3. Set Altitude to the value that is closest to the altitude of your meter, measured from

sea level.

Valid values are 0000 to 6000 feet, and 0000 to 2000 meters.

4. Click Start, then wait while the meter collects and analyzes process data.

This step should be complete in approximately 20 seconds.

5. Check the results in the Results data display.

• If all process variables passed the tests, no action is required. Click Close to exit

the wizard.

• If one or more process variables failed the test:

- For problems with Line Temperature, Case Temperature, or Tube-Case

- For problems with Verification Time Period Signal or Drive Gain, ensure that

the meter is clean and dry. Then retry the Known Density Verification procedure.

- If the Known Density Verification procedure continues to fail, contact

Micro Motion customer service.

9.1.3 Perform the Known Density Verification procedure using a fieldbus host

Prerequisites

Power down the meter, remove the meter from the process, and place it in a protected stable environment.

Ensure that the sensor tubes are clean and dry.

Minimize variation in ambient temperature.

Eliminate or minimize vibration.

Power up the meter.

Configuration and Use Manual 85

Measurement support

Procedure

1. Set KDV Altitude to the value that is closest to the altitude of your meter, measured

from sea level: Density Viscosity Meter TB TB > DEN_ElevationAboveSeaLev (OD Index 123).

Code in decimal Description

0 0 feet or meters

1 1000 feet

2 2000 feet

3 3000 feet

4 4000 feet

5 5000 feet

6 6000 feet or greater

7 500 meters

8 1000 meters

9 2000 meters or greater

2. Write 1 to Density Viscosity Meter TB TB > DEN_StartHealthCheck (OD Index 9) to start the

method, then wait while the meter collects and analyzes process data.

This step should be complete in approximately 20 seconds.

3. Read the results in Density Viscosity Meter TB TB > DEN_HealthCheckResult (OD Index 105).

Code in decimal Description

0 Good

2 Failed

3 Not run

4 In progress

5 No factory calibration

9.2 Adjust density measurement with Density Offset or Density Meter Factor

You can adjust the reported density measurement by modifying the value for Density Offset or Density Meter Factor. The measured density value is always multiplied by the density meter factor. The density offset is always added to the result.

The default value for Density Meter Factor is 1.0. The default value for Density Offset is 0. Accordingly, the default values have no effect on the reported density value.

86 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

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Important

Density Offset and Density Meter Factor improve measurement accuracy only when the line temperature and line pressure of the sample are close to the line temperature and line pressure of the process.

Tip

If the density offset calibration procedure is available, use it to calculate a density offset value that is corrected to reference temperature and reference pressure. Density offset calibration is the preferred method to adjust density measurement.

Restriction

You cannot enter a density offset from the display. If you want to change the density offset manually, you must use ProLink III or the Field Communicator.

Prerequisites

You will need an external density measurement method that is highly accurate.

Ensure that your process is stable during the sampling procedure. Minimize variation in density, temperature, flow rate, and fluid composition. Minimize aeration.

Procedure

1. Take a density reading from the device.

a. Ensure that line temperature and line pressure are at typical operating levels.

b. Record the line temperature and line pressure.

c. Record the measured density.

2. Immediately after the previous step, take a sample from a location as close to the

device as possible.

3. Using the external measurement method, measure the density of the sample at line

temperature and line pressure.

4. Use the following equation to calculate an appropriate value for Density Offset or

Density Meter Factor.

=(ρ

Lab

Tip

In most cases, you will calculate and set only one parameter. Follow the guidelines established for your site.

× DensityMeterFactor)+ DensityOffset

Line

5. If you are using the offset to adjust density measurement, set Density Offset to the

calculated value.

• Using the display: Not available

• Using ProLink III: Device Tools > Configuration > Process Measurement > Line Density >

Density Offset

• Using Foundation fieldbus: Density Viscosity Meter TB TB > DEN_DensityOffset (OD

Index 44)

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Measurement support

The default value for Density Offset is 0. The range is unlimited.

6. If you are using the meter factor to adjust density measurement, set Density Meter

Factor to the calculated value.

• Using the display: OFF-LINE MAINT > OFF-LINE CAL > DENS MTR F

• Using ProLink III: Device Tools > Configuration > Process Measurement > Line Density >

Density Meter Factor

• Using Foundation fieldbus: Density Viscosity Meter TB TB > DEN_DensityMeterFactor

(OD Index 45)

The default value for Density Meter Factor is 1.0. The recommended range is 0.8 to 1.2. If your calculated meter factor is outside this range, contact Micro Motion customer service.

9.3 Perform density offset calibration

Density offset calibration is used to verify or adjust the value of Density Offset. Density Offset is always added to the measured density value after the density meter factor is applied, and before other processing is performed.

• Perform density offset calibration using the display (Section 9.3.1)

• Perform density offset calibration using ProLink III (Section 9.3.2)

• Perform density offset calibration using a fieldbus host (Section 9.3.3)

9.3.1 Perform density offset calibration using the display

The default value of Density Offset is 0.

Restriction

Density offset calibration is available only when API referral or concentration measurement is enabled on your meter. If neither of these is enabled, Density Offset must be entered manually.

Tip

Density offset calibration is the preferred method for calculating a density offset, because the procedure automatically corrects the data to reference temperature and reference pressure. If this procedure is available on your device, use it and do not set Density Offset manually.

Note

88 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

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Prerequisites

Ensure that your process is stable during the calibration procedure. Minimize variation in density, temperature, flow rate, and fluid composition. Minimize aeration.

If concentration measurement is enabled on your meter, ensure that Active Matrix is set to the matrix that you want to calibrate.

Following the procedures defined in ASTM 1298 or API 555, obtain a laboratory reference value for the density of your process fluid at reference temperature and reference pressure.

Procedure

1. Navigate to the Density Offset Calibration wizard: OFF-LINE MAINT > OFF-LINE CAL >

DENS CAL OFFSET and activate Select.

If concentration measurement is enabled, the active matrix is displayed. Activate Scroll to continue. The current reference temperature is displayed.

2. Activate Scroll to move to the next step.

3. Enter the laboratory reference density and save it to the transmitter.

4. Activate Select to apply the offset, and wait for a few seconds while the calibration

process is performed.

If the calibration succeeded, the calculated density offset is displayed.

If the calibration failed, Density Offset is reset to the original value.

• Verify your laboratory reference value.

• Ensure that your process was stable during the entire procedure.

• Repeat the calibration.

5. Activate Scroll to view the referred density value.

• For concentration measurement, Referred Density (Concentration) is displayed.

• For API referral, Referred Density (API) is displayed.

6. To exit the calibration, activate Scroll, then activate Select.

9.3.2 Perform density offset calibration using ProLink III

The default value of Density Offset is 0.

Restriction

Density offset calibration is available only when API referral or concentration measurement is enabled on your meter. If neither of these is enabled, Density Offset must be entered manually.

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Measurement support

Tip

Prerequisites

Ensure that your process is stable during the calibration procedure. Minimize variation in density, temperature, flow rate, and fluid composition. Minimize aeration.

If concentration measurement is enabled on your meter, ensure that Active Matrix is set to the matrix that you want to calibrate.

Following the procedures defined in ASTM 1298 or API 555, obtain a laboratory reference value for the density of your process fluid at reference temperature and reference pressure.

Procedure

1. Navigate to the Density Offset Calibration wizard: Device Tools > Calibration > Density

Offset > Density Offset Calibration.

2. Enter the laboratory reference value for density.

3. Click Apply Offset and wait for a few seconds while the calibration process is

performed.

4. For API referral: Check the values displayed in the Density Offset and Referred Density

(API) fields.

If the calibration succeeded:

• Density Offset displays the updated value for this parameter.

• Referred Density (API) shows this process variable with the new density offset

applied. This value should match the laboratory reference value.

If the calibration failed, Density Offset is reset to the original value.

• Verify your laboratory reference value.

• Ensure that your process was stable during the entire procedure.

• Repeat the calibration.

5. For concentration measurement: Check the values displayed in the Density Offset and Referred Density (Concentration) fields.

If the calibration succeeded:

• Density Offset displays the updated value for this parameter.

• Referred Density (Concentration) shows this process variable with the new density

offset applied. This value should match the laboratory reference value.

If the calibration failed, Density Offset is reset to the original value.

• Verify your laboratory reference value.

• Ensure that your process was stable during the entire procedure.

90 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

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• Ensure that the active concentration matrix is valid.

• Repeat the calibration.

9.3.3 Perform density offset calibration using a fieldbus host

The default value of Density Offset is 0.

Restriction

Density offset calibration is available only when API referral or concentration measurement is enabled on your meter. If neither of these is enabled, Density Offset must be entered manually.

Tip

Prerequisites

Ensure that your process is stable during the calibration procedure. Minimize variation in density, temperature, flow rate, and fluid composition. Minimize aeration.

If concentration measurement is enabled on your meter, ensure that Active Matrix is set to the matrix that you want to calibrate.

Following the procedures defined in ASTM 1298 or API 555, obtain a laboratory reference value for the density of your process fluid at reference temperature and reference pressure.

Procedure

1. Enter the laboratory reference value: Density Viscosity Meter TB TB > DEN_LabDensity (OD Index 107).

2. Write 1 to Density Viscosity Meter TB TB > DEN_StartDensOffsetCal (OD Index 13) to start the density offset calibration.

3. Wait for a few seconds while the calibration process is performed.

4. Check the values.

If the calibration succeeded:

• The new density offset is stored in Density Viscosity Meter TB TB > DEN_DensityOffet

(OD Index 44).

• For API referral, the referred density value in API Referral TB > API_Corr_Density (OD

Index 8) is updated with the new offset.

• For concentration measurement, the referred density and concentration values

in Concentration Measurement TB > OD Indexes 8, 9, 13, 14 are updated with the new offset.

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If the calibration failed, Density Offset is reset to the original value.

• Verify your laboratory reference value.

• Ensure that your process was stable during the entire procedure.

• Repeat the calibration.

9.4 Adjust temperature measurement with

Temperature Offset

You can adjust the reported temperature measurement by modifying the value for Temperature Offset. The temperature offset is always added to the measured temperature value.

Meter-specific temperature calibration factors are determined at the factory. These values are available on the meter tag. Temperature Offset is applied after the temperature calibration factors.

The default value for Temperature Offset is 0. Accordingly, the default value has no effect on the reported temperature value.

Note

Temperature offset is applied only to temperature data from the on-board temperature sensors (RTD). External temperature data is not adjusted.

Prerequisites

You will need an external temperature measurement method that is highly accurate.

Ensure that your process is stable during the sampling procedure. Minimize variation in density, temperature, flow rate, and fluid composition. Minimize aeration.

Procedure

1. Take a temperature reading from the meter.

2. Immediately after the previous step, take a sample from a location as close to the meter as possible.

3. Using the external measurement method, measure the temperature of the sample.

4. Subtract the measured temperature value from the externally measured value.

5. Set Temperature Offset to the result.

• Using the display: Not available

• Using ProLink III: Device Tools > Configuration > Process Measurement > Line Temperature

> Temperature Offset

• Using Foundation fieldbus: Calibration TB > TEMP_OFFSET (OD Index 39)

The default value is 0. The range is unlimited.

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9.5 Adjust concentration measurement with Trim

Offset

Trim Offset adjusts the meter's concentration measurement to match a reference value.

Tip

You can adjust concentration measurement by applying the trim offset only, or by applying both the trim offset and the trim slope. For most applications, the trim offset is sufficient.

Prerequisites

You must be able to take a sample of your process fluid and obtain a laboratory concentration value at line density and line temperature.

Procedure

1. Take a concentration reading from the meter, and record line density and line temperature.

2. Take a sample of the process fluid and obtain a laboratory value for concentration at line density and line temperature, in the units used by the meter.

3. Subtract the meter value from the laboratory value.

4. Enter the result as the trim offset.

• Using the display: Not available

• Using ProLink III: Device Tools > Configuration > Process Measurement > Concentration

Measurement

• Using a fieldbus host: Concentration Measurement TB > ED_Slope_Offset (OD Index 42)

5. Take another concentration reading from the meter, and compare it to the laboratory value.

• If the two values are acceptably close, the trim is complete.

• If the two values are not acceptably close, repeat this procedure.

Example: Calculating the trim offset

Laboratory value 64.21 °Brix

Meter value 64.93 °Brix

64.21 − 64.93 = −0.72

Concentration offset: −0.72

Related information

Adjust concentration measurement with Trim Offset and Trim Slope

Configuration and Use Manual 93

Measurement support

9.6 Adjust concentration measurement with Trim Offset and Trim Slope

Trim Offset and Trim Slope adjust the meter's concentration measurement to match a

reference value.

Tip

You can adjust concentration measurement by applying the trim offset only, or by applying both the trim offset and the trim slope. For most applications, the trim offset is sufficient.

Prerequisites

You must be able to take measurements of your process fluid at two different concentrations.

You must be able to take a sample of your process fluid at each of these concentrations.

For each sample, you must be able to obtain a laboratory concentration value at line density and line temperature.

Procedure

1. Collect data for Comparison 1.

a. Take a concentration reading from the meter and record line density and line

temperature.

b. Take a sample of the process fluid at the current concentration.

c. Obtain a laboratory value for concentration at line density and line temperature,

in the units used by the meter.

2. Collect data for Comparison 2.

a. Change the concentration of your process fluid.

b. Take a concentration reading from the meter and record line density and line

temperature.

c. Take a sample of the process fluid at the current concentration.

d. Obtain a laboratory value for concentration at line density and line temperature,

in the units used by the meter.

3. Populate the following equation with values from each comparison.

Concentration

4. Solve for A (slope).

5. Solve for B (offset), using the calculated slope and one set of values.

6. Enter the results as the trim slope and the trim offset.

=(A × Concentration

Lab

Meter

)

+ B

• Using the display: Not available

• Using ProLink III: Device Tools > Configuration > Process Measurement > Concentration

Measurement

94 Micro Motion® Compact Density Meters (CDM) with Foundation™ Fieldbus

Micro Motion CDM100 Meters with Foundation Fieldbus Configuration and Use Manual Manuals & Guides

Specifications and Main Features

Frequently Asked Questions

User Manual

Safety messages

Emerson Flow customer service

Contents

• About this manual

Before you begin

Model codes and device typesTable 1-1:

1.3 Communications tools and protocols

Additional documentation and resourcesTable 1-3:

• Power up the transmitter

• Check meter status

Quick start

2.3 Make a startup connection to the transmitter

2.4 Zero the meter

2.4.1 Zero the meter using the display

2.4.2 Zero the meter using ProLink III

2.4.3 Zero the meter using a Fieldbus host

Introduction to configuration and commissioning

• Default values

3.2 Enable access to the off-line menu of the display

3.3 Place function blocks in Out of Service mode

3.4 Restore the factory configuration

Integrate the meter with the network

• Assign function block channels to transducer block channels

4.2 Configure AI Linearization

4.3 Configure process alert limits for the AI blocks

4.4 Configure the timeout for Field Diagnostic alerts

Configure process measurement

• Verify the calibration factors

5.1.1 Calibration factors

5.2 Configure line density measurement

5.2.1 Configure Density Measurement Unit

Options for Density Measurement Unit

Define a special measurement unit for density

5.2.2 Configure Density Damping

5.2.3 Configure Density Cutoff

5.2.4 Configure two-phase flow parameters

Detecting and reporting two-phase flow

5.3 Configure temperature measurement

5.3.1 Configure Temperature Measurement Unit

Options for Temperature Measurement Unit

5.3.2 Configure Temperature Damping

5.3.3 Configure Temperature Input

Configure Temperature Input using a fieldbus host

5.4 Configure the pressure input

5.4.1 Configure the pressure input using a fieldbus host

5.4.2 Options for Pressure Measurement Unit

5.5 Configure velocity measurement

5.5.1 Configure Velocity Measurement Unit

Options for Velocity Measurement Unit

5.5.2 Configure Velocity Damping

5.5.3 Configure Flow Direction

Options for Flow Direction

Effect of Flow Direction on digital communications

5.5.4 Configure Velocity Cutoff

5.5.5 Configure Velocity Switch Setpoint

5.6 Set up the API referral application

5.6.1 Set up the API referral application using ProLink III

Enable the API referral application using ProLink III

Configure API referral using ProLink III

API tables supported by the API referral application

Set up temperature and pressure data for API referral using ProLink III

5.6.2 Set up the API referral application using a fieldbus host

Enable the API referral application using a fieldbus host

Configure API referral using a fieldbus host

Set up temperature and pressure data for API referral using a fieldbus host

5.7 Set up concentration measurement

5.7.1 Preparing to set up concentration measurement

5.7.2 Set up concentration measurement using ProLink III

Enable the concentration measurement application using ProLink III

Load a concentration matrix using ProLink III

Set reference temperature values for specific gravity using ProLink III

Set up temperature data for concentration measurement using ProLink III

Modify matrix names and labels using ProLink III

Modify operational parameters for concentration measurement using ProLink III

Select the active concentration matrix using ProLink III

Using equations to calculate specific gravity, °Baumé, °Brix, °Plato, and °Twaddell