Micro Motion Fork Density Meter Manuals & Guides

Configuration and Use Manual

MMI-20020959, Rev AC

Micro Motion® Fork Density Meters (FDM)

Configuration and Use Manual

April 2016

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

Email:

• Worldwide: [e-mail]

• Asia-Pacific: [e-mail]

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Contents

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

Part II Configuration and commissioning

Chapter 3 Introduction to configuration and commissioning ....................................................... 13

3.1 Default values ............................................................................................................................13

3.1.1 FDM default values ..................................................................................................... 13

3.2 Enable access to the off-line menu of the display ....................................................................... 14

3.3 Disable HART security ................................................................................................................15

3.4 Set the HART lock ...................................................................................................................... 17

3.5 Restore the factory configuration .............................................................................................. 17

Chapter 4 Configure process measurement ..................................................................................19

4.1 Verify the calibration factors ......................................................................................................19

4.1.1 Calibration factors ...................................................................................................... 20

4.2 Configure line density measurement ........................................................................................ 20

4.2.1 Configure Density Measurement Unit ................................................................................20

4.2.2 Configure Density Damping ........................................................................................... 22

4.2.3 Configure Density Cutoff ................................................................................................ 23

4.2.4 Configure two-phase flow parameters ........................................................................24

4.3 Configure temperature measurement .......................................................................................25

4.3.1 Configure Temperature Measurement Unit ........................................................................ 25

4.3.2 Configure Temperature Damping .....................................................................................26

4.3.3 Configure Temperature Input .......................................................................................... 27

4.4 Configure the pressure input ..................................................................................................... 30

4.4.1 Configure the pressure input using ProLink III ............................................................. 30

4.4.2 Configure the pressure input using the Field Communicator .......................................32

4.4.3 Options for Pressure Measurement Unit ........................................................................... 33

4.5 Set up the API referral application ..............................................................................................34

4.5.1 Set up the API referral application using ProLink III ...................................................... 34

4.5.2 Set up the API referral application using the Field Communicator ............................... 40

4.6 Set up concentration measurement .......................................................................................... 47

4.6.1 Preparing to set up concentration measurement ........................................................47

4.6.2 Set up concentration measurement using ProLink III ...................................................48

Configuration and Use Manual i

Contents

4.6.3 Set up concentration measurement using the Field Communicator ............................55

4.6.4 Using equations to calculate specific gravity, °Baumé, °Brix, °Plato, and °Twaddell ......60

4.6.5 Matrix switching ......................................................................................................... 61

4.6.6 Measuring Net Mass Flow Rate and Net Volume Flow Rate ..........................................63

4.7 Set up flow rate measurement ...................................................................................................63

4.7.1 Set up flow rate measurement using ProLink III ...........................................................63

4.7.2 Set up flow rate measurement using the Field Communicator .................................... 65

Chapter 5 Configure device options and preferences ....................................................................67

5.1 Configure the transmitter display .............................................................................................. 67

5.1.1 Configure the language used for the display ............................................................... 67

5.1.2 Configure the process variables and diagnostic variables shown on the display ...........68

5.1.3 Configure the number of decimal places (precision) shown on the display ..................68

5.1.4 Configure the refresh rate of data shown on the display ..............................................69

5.1.5 Enable or disable automatic scrolling through the display variables ............................ 69

5.2 Enable or disable the Acknowledge All Alerts display command ......................................................70

5.3 Configure security for the display menus .................................................................................. 71

5.4 Configure alert handling ............................................................................................................72

5.4.1 Configure Fault Timeout .................................................................................................72

5.4.2 Configure Alert Severity ................................................................................................. 73

5.5 Configure informational parameters ......................................................................................... 75

Chapter 6 Integrate the meter with the control system ................................................................77

6.1 Configure Channel B ..................................................................................................................77

6.2 Configure the mA output .......................................................................................................... 78

6.2.1 Configure mA Output Process Variable ............................................................................. 78

6.2.2 Configure Lower Range Value (LRV) and Upper Range Value (URV) ....................................80

6.2.3 Configure Added Damping ............................................................................................. 81

6.2.4 Configure mA Output Fault Action and mA Output Fault Level ...............................................82

6.3 Configure the discrete output ................................................................................................... 84

6.3.1 Configure Discrete Output Source ....................................................................................84

6.3.2 Configure Discrete Output Polarity ................................................................................... 85

6.3.3 Configure Discrete Output Fault Action ............................................................................. 86

6.4 Configure an enhanced event ....................................................................................................87

6.5 Configure HART/Bell 202 communications ............................................................................... 88

6.5.1 Configure basic HART parameters ...............................................................................88

6.5.2 Configure HART variables (PV, SV, TV, QV) ..................................................................89

6.5.3 Configure burst communications ............................................................................... 91

6.6 Configure Modbus communications ..........................................................................................95

6.7 Configure Digital Communications Fault Action ................................................................................. 97

6.7.1 Options for Digital Communications Fault Action .................................................................97

Chapter 7 Complete the configuration ......................................................................................... 99

7.1 Test or tune the system using sensor simulation ........................................................................99

7.2 Back up transmitter configuration ............................................................................................. 99

7.3 Enable HART security ...............................................................................................................100

Part III Operations, maintenance, and troubleshooting

Chapter 8 Transmitter operation ................................................................................................105

8.1 Record the process variables ................................................................................................... 105

8.2 View process variables and diagnostic variables ...................................................................... 105

ii Micro Motion® Fork Density Meters (FDM)

Contents

8.2.1 View process variables using the display ................................................................... 105

8.2.2 View process variables and other data using ProLink III ............................................. 106

8.2.3 View process variables using the Field Communicator .............................................. 106

8.3 View and acknowledge status alerts ........................................................................................ 107

8.3.1 View and acknowledge alerts using the display ........................................................ 107

8.3.2 View and acknowledge alerts using ProLink III ...........................................................109

8.3.3 View alerts using the Field Communicator ................................................................ 110

8.3.4 Alert data in transmitter memory ............................................................................. 110

Chapter 9 Measurement support ............................................................................................... 113

9.1 Perform the inline calibration check procedure ....................................................................... 113

9.1.1 Perform the inline calibration check using ProLink III .................................................114

9.1.2 Perform the inline calibration check using the Field Communicator ..........................115

9.2 Perform the Known Density Verification procedure .................................................................115

9.2.1 Perform the Known Density Verification procedure using the display ....................... 116

9.2.2 Perform the Known Density Verification procedure using ProLink III ......................... 117

9.2.3 Perform the Known Density Verification procedure using the

Field Communicator ................................................................................................. 117

9.3 Adjust density measurement with Density Offset or Density Meter Factor ....................................... 118

9.4 Perform density offset calibration ............................................................................................119

9.4.1 Perform density offset calibration using the display .................................................. 120

9.4.2 Perform density offset calibration using ProLink III ....................................................121

9.4.3 Perform density offset calibration using the Field Communicator ............................. 121

9.5 Perform temperature calibration .............................................................................................122

9.5.1 Perform temperature calibration using the display ................................................... 122

9.5.2 Perform temperature calibration using ProLink III .................................................... 123

9.5.3 Perform temperature calibration using the Field Communicator ..............................123

9.6 Adjust concentration measurement with Trim Offset .................................................................124

9.7 Adjust concentration measurement with Trim Slope and Trim Offset ........................................... 125

9.8 Set up user-defined calculations .............................................................................................. 127

9.8.1 Equations used in user-defined calculations ..............................................................129

9.8.2 Measurement units used in user-defined calculations ............................................... 129

Chapter 10 Troubleshooting ........................................................................................................ 131

10.1 Quick guide to troubleshooting ...............................................................................................131

10.2 Check power supply wiring ......................................................................................................132

10.3 Check grounding .....................................................................................................................133

10.4 Perform loop tests ...................................................................................................................133

10.4.1 Perform loop tests using the display ......................................................................... 134

10.4.2 Perform loop tests using ProLink III ........................................................................... 135

10.4.3 Perform loop tests using the Field Communicator .................................................... 136

10.5 Status LED states ..................................................................................................................... 137

10.6 Status alerts, causes, and recommendations ........................................................................... 138

10.7 Density measurement problems ............................................................................................. 143

10.8 Temperature measurement problems .....................................................................................144

10.9 API referral problems ...............................................................................................................145

10.10 Concentration measurement problems ...................................................................................145

10.11 Milliamp output problems ....................................................................................................... 146

10.12 Discrete output problems ........................................................................................................148

10.13 Time Period Signal (TPS) output problems ...............................................................................148

10.14 Using sensor simulation for troubleshooting ........................................................................... 149

10.15 Trim mA outputs ..................................................................................................................... 149

Configuration and Use Manual iii

Contents

10.15.1 Trim mA outputs using ProLink III ..............................................................................149

10.15.2 Trim mA outputs using the Field Communicator .......................................................150

10.16 Check HART communications ................................................................................................. 151

10.17 Check Lower Range Value and Upper Range Value ......................................................................... 152

10.18 Check mA Output Fault Action ...................................................................................................... 153

10.19 Check for radio frequency interference (RFI) ............................................................................153

10.20 Check the cutoffs .................................................................................................................... 153

10.21 Check for two-phase flow (slug flow) .......................................................................................154

10.22 Check the drive gain ................................................................................................................ 154

10.22.1 Collect drive gain data .............................................................................................. 155

10.23 Check for internal electrical problems ..................................................................................... 155

10.24 Locate a device using the HART 7 Squawk feature ................................................................... 156

Appendices and reference

Appendix A Calibration certificate ................................................................................................ 157

A.1 Sample calibration certificate ................................................................................................. 157

Appendix B Using the transmitter display ..................................................................................... 159

B.1 Components of the transmitter interface ................................................................................ 159

B.2 Use the optical switches .......................................................................................................... 159

B.3 Access and use the display menu system .................................................................................160

B.3.1 Enter a floating-point value using the display ............................................................161

B.4 Display codes for process variables ..........................................................................................164

B.5 Codes and abbreviations used in display menus ...................................................................... 164

Appendix C Using ProLink III with the transmitter .........................................................................177

C.1 Basic information about ProLink III ...........................................................................................177

C.2 Connect with ProLink III ........................................................................................................... 178

C.2.1 Connection types supported by ProLink III ................................................................ 178

C.2.2 Connect with ProLink III over Modbus/RS-485 ...........................................................179

C.2.3 Connect with ProLink III over HART/Bell 202 ............................................................. 182

Appendix D Using the Field Communicator with the transmitter ................................................... 191

D.1 Basic information about the Field Communicator ....................................................................191

D.2 Connect with the Field Communicator .................................................................................... 192

Appendix E Concentration measurement matrices, derived variables, and process variables ........ 195

E.1 Standard matrices for the concentration measurement application ........................................ 195

E.2 Concentration measurement matrices available by order ........................................................196

E.3 Derived variables and calculated process variables .................................................................. 198

iv Micro Motion® Fork Density Meters (FDM)

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® Fork Density Meters (FDM)

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 Fork Density Meter (FDM).

The following versions of the FDM are documented in this manual:

• Fork Density Meter with Analog Outputs

• Fork Density Meter with Analog Output and Discrete Output

• Fork Density Meter with Time Period Signal Output

Before you begin

For the Fork Density Meter with FOUNDATION™ Fieldbus, see Micro Motion® Fork Density
Meters with FOUNDATION™ Fieldbus: Configuration and Use Manual.

Important

This manual assumes that the following conditions apply:

• The meter has been installed correctly and completely, according to the instructions in the

installation manual.

• The installation complies with all applicable safety requirements.

• The user is trained in all government and corporate safety standards.

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

FDM*****C FDM mA • Two mA outputs

• RS-485 terminals

FDM*****D FDM DO • One mA output

• One discrete output

• RS-485 terminals

Electronics mount­ing

Integral

Integral

Configuration and Use Manual 3

Before you begin

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

Model code Device nickname I/O

FDM*****B FDM TPS • One mA output

• One Time Period Sig-

nal output

FDM*****A FDM FF • FOUNDATION™ field-

bus

Restriction

The FDM and FDM FF support a complete set of application and configuration options. The FDM DO
and FDM TPS support a subset of configuration options. Refer to the product data sheet for details.

1.3 Communications tools and protocols

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.

Electronics mount­ing

Integral

4-wire remote
transmitter

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 • Modbus/RS-485

• HART/Bell 202

• Service port

Field Commu­nicator

• HART/Bell 202 Complete configuration

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.

Complete configuration
and commissioning

and commissioning

Complete user informa­tion. See Appendix B.

Basic user information.
See Appendix C.

Basic user information.
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)

User manual on
Micro Motion web site
(www.micromo‐

tion.com )

4 Micro Motion® Fork Density Meters (FDM)

1.4 Additional documentation and resources

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

Additional documentation and resourcesTable 1-3:

Topic Document

Device installation Micro Motion Fork Density Meters (FDM): Installation Manual

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

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

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

Before you begin

Configuration and Use Manual 5

Before you begin

6 Micro Motion® Fork Density Meters (FDM)

2 Quick start

Topics covered in this chapter:

• Power up the transmitter

• Check meter status

• Make a startup connection to the transmitter

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.

WARNING!

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.

Quick start

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.

2. Check the status LED on the transmitter.

Configuration and Use Manual 7

Quick start

Transmitter status reported by status LEDTable 2-1:

LED state Description Recommendation

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

urement.

Yellow One or more low-severity alerts are active. 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.

Flashing yellow Calibration in progress, or Known Density Veri-

fication in progress.

Red One or more high-severity alerts are active. A high-severity alert condition affects meas-

The measurement can fluctuate during the
calibration process or change as a result of the
calibration process. The alert will clear when
the calibration is complete. Check the calibra­tion results before continuing.

urement accuracy and output behavior. Re­solve the alert condition before continuing.

• View and acknowledge status alerts (Section 8.3)

• Status alerts, causes, and recommendations (Section 10.6)

2.3 Make a startup connection to the transmitter

For all configuration tools except the display, you must have an active connection to the
transmitter to configure the transmitter.

Identify the connection type to use, and follow the instructions for that connection type in
the appropriate appendix. Use the default communications parameters shown in the
appendix.

Communications tool Connection type to use Instructions

ProLink III Modbus/RS-485

HART/Bell 202

Field Communicator HART/Bell 202 Appendix D

Postrequisites

(Optional) Change the communications parameters to site-specific values.

Appendix C

• To change the communications parameters using ProLink III, choose Device Tools >

Configuration > Communications.

• To change the communications parameters using the Field Communicator, choose

Configure > Manual Setup > HART > Communications.

8 Micro Motion® Fork Density Meters (FDM)

Quick start

Important

If you are changing communications parameters for the connection type that you are using, you will
lose the connection when you write the parameters to the transmitter. Reconnect using the new
parameters.

Configuration and Use Manual 9

Quick start

10 Micro Motion® Fork Density Meters (FDM)

Configuration and commissioning

Part II

Configuration and commissioning

Chapters covered in this part:

• Introduction to configuration and commissioning

• Configure process measurement

• Configure device options and preferences

• Integrate the meter with the control system

• Complete the configuration

Configuration and Use Manual 11

Configuration and commissioning

12 Micro Motion® Fork Density Meters (FDM)

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

• Disable HART security

• Set the HART lock

• Restore the factory configuration

3.1 Default values

Default values for your meter are configured at the factory.

Important

Default values are based on your purchase order options. Therefore, the default values described in
the following tables may not be the factory default values configured for your system. For absolute
accuracy, refer to the configuration sheet that was shipped with your meter.

3.1.1 FDM default values

FDM default mA scaling valuesTable 3-1:

Variable Default 4 mA Default 20 mA

Density 0.500 g/cc 1.500 g/cc

Temperature -50.000°C

Drive gain 0.000 % 100.000 %

External temperature -50.000°C

External pressure 0.000 PSIg 1450.377 PSIg

Sensor time period 400 us 2900 us

Special equation output 0 100

API Referral option enabled

API density 0.500 g/cc 1.500 g/cc

-58.000°F

-58.000°F

200.000°C

392.000°F

200.000°C

392.000°F

Concentration Measurement option enabled

CM density @ ref 0.500 g/cc 1.500 g/cc

CM specific gravity 0.500 1.500

Configuration and Use Manual 13

Introduction to configuration and commissioning

FDM default mA scaling values (continued)Table 3-1:

Variable Default 4 mA Default 20 mA

CM concentration 0.000 % 100.000 %

External volume flow rate input enabled

Mass flow rate (calculated) -0.2 kg/s 0.2 kg/s

Volume flow rate (external) -0.2 l/s 0.2 l/s

Net mass flow -0.2 kg/s 0.2 kg/s

Net volume flow -0.2 l/s 0.2 l/s

Mass flow (mag input) -0.2 kg/s 0.2 kg/s

FDM default variablesTable 3-2:

Default variable Output option A Output options B and C

Primary Variable (PV), mA1 Sample Temperature Density

Secondary Variable (SV),
mA2

Tertiary Variable (TV) Density Sensor Time Period

Quaternary Variable (QV) Drive Gain Drive Gain

Sensor Time Period Temperature

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

Display Not available

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

Field Communicator Configure > Manual Setup > Display > Display Menus > Offline Menu

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.

14 Micro Motion® Fork Density Meters (FDM)

3.3 Disable HART security

A

If you plan to use HART protocol to configure the device, HART security must be disabled.
HART security is disabled by default, so you may not need to do this.

Prerequisites

• Strap wrench

• 3 mm hex key

Procedure

1. Power down the meter.

2. Using the strap wrench, loosen the grub screws and remove the transmitter end-

cap.

Transmitter with end-cap removedFigure 3-1:

Introduction to configuration and commissioning

A. Transmitter end‐cap

3. Using the hex key, remove the safety spacer.

Configuration and Use Manual 15

A

B

A

B

Introduction to configuration and commissioning

Transmitter with end-cap and safety spacer removedFigure 3-2:

A. Transmitter end‐cap
B. Safety spacer

4. Move the HART security switch to the OFF position (up).

The HART security switch is the switch on the left.

HART security switchFigure 3-3:

A. HART security switch
B. Unused

16 Micro Motion® Fork Density Meters (FDM)

5. Replace the safety spacer and end-cap.

6. Power up the meter.

3.4 Set the HART lock

If you plan to use a HART connection to configure the device, you can lock out all other
HART masters. If you do this, other HART masters will be able to read data from the device
but will not be able to write data to the device.

Restrictions

• This feature is available only when you are using the Field Communicator or AMS.

• This feature is available only with a HART 7 host.

Procedure

1. Choose Configure > Manual Setup > Security > Lock/Unlock Device.

2. If you are locking the meter, set Lock Option as desired.

Introduction to configuration and commissioning

Option Description

Permanent Only the current HART master can make changes to the device. The device will

remain locked until manually unlocked by a HART master. The HART master can
also change Lock Option to Temporary.

Temporary Only the current HART master can make changes to the device. The device will

remain locked until manually unlocked by a HART master, or a power-cycle or
device reset is performed. The HART master can also change Lock Option to Perma-

nent.

Lock All No HART masters are allowed to make changes to the configuration. Before

changing Lock Option to Permanent or Temporary, the device must be unlocked. Any
HART master can be used to unlock the device.

Postrequisites

To avoid future confusion or difficulties, ensure that the device is unlocked after you have
completed your tasks.

3.5 Restore the factory configuration

Display Not available

ProLink III Device Tools > Configuration Transfer > Restore Factory Configuration

Field Communicator Service Tools > Maintenance > Reset/Restore > Restore Factory Configuration

Configuration and Use Manual 17

Introduction to configuration and commissioning

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.

18 Micro Motion® Fork Density Meters (FDM)

Configure process measurement

4 Configure process measurement

Topics covered in this chapter:

• Verify the calibration factors

• Configure line density measurement

• Configure temperature measurement

• Configure the pressure input

• Set up the API referral application

• Set up concentration measurement

• Set up flow rate measurement

4.1 Verify the calibration factors

Display Not available

ProLink III Device Tools > Calibration Data

Field Communicator Configure > Manual Setup > Calibration Factors

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.

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.

Configuration and Use Manual 19

Configure process measurement

Related information

Sample calibration certificate

4.1.1 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.

The calibration certificate contains two sets of factors:

Density calibration
coefficients

Temperature
compensation coefficients

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.

Related information

Sample calibration certificate

Define the relationship between density and the response
of your sensor

Adjust density measurement for the effect of temperature
on sensor response

4.2 Configure line density measurement

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

• Configure Density Measurement Unit (Section 4.2.1)

• Configure Density Damping (Section 4.2.2)

• Configure Density Cutoff (Section 4.2.3)

• Configure two‐phase flow parameters (Section 4.2.4)

4.2.1 Configure Density Measurement Unit

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

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

Field Communicator Configure > Manual Setup > Measurements > Density > Density Unit

Overview

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

20 Micro Motion® Fork Density Meters (FDM)

Configure process measurement

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.

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

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 4-1:

Label

Unit description

Specific gravity SGU SGU SGU

Grams per cubic centimeter G/CM3 g/cm3 g/Cucm

Grams per liter G/L g/l g/L

Grams per milliliter G/mL g/ml g/mL

Kilograms per liter KG/L kg/l kg/L

Kilograms per cubic meter KG/M3 kg/m3 kg/Cum

Pounds per U.S. gallon LB/GAL lbs/Usgal lb/gal

Pounds per cubic foot LB/CUF lbs/ft3 lb/Cuft

Pounds per cubic inch LB/CUI lbs/in3 lb/CuIn

Short ton per cubic yard ST/CUY sT/yd3 STon/Cuyd

Degrees API D API degAPI degAPI

Special unit SPECL special Spcl

Display (standard) ProLink III Field Communicator

Define a special measurement unit for density

Display Not available

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

Field Communicator Configure > Manual Setup > Measurements > Special Units

Configuration and Use Manual 21

Configure process measurement

Overview

A special measurement unit is a user-defined unit of measure that allows you to report
process data in a unit that is not available in the transmitter. A special measurement unit is
calculated from an existing measurement unit using a conversion factor.

Procedure

1. Specify Density Special Unit Base.

2. Calculate Density Special Unit Conversion Factor as follows:

3. Enter Density Special Unit Conversion Factor.

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

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

a. x base units = y special units

b. Density Special Unit Conversion Factor = x÷y

The original density value is divided by this conversion factor.

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:

a. 1 g/cm3 = 0.578 oz/in3

b. 1÷0.578 = 1.73

3. Set Density Special Unit Conversion Factor to 1.73.

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

4.2.2 Configure Density Damping

Display Not available

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

Field Communicator Configure > Manual Setup > Measurements > Density > Density Damping

Overview

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

22 Micro Motion® Fork Density Meters (FDM)

Configure process measurement

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 1.6 seconds. The range is 0 to 60 seconds.

Interaction between Density Damping and Added Damping

When the mA output is configured to report density, both Density Damping and Added
Damping are applied to the reported density value.

Density Damping controls the rate of change in the value of the process variable in

transmitter memory. Added Damping controls the rate of change reported via the mA
output.

If mA Output Process Variable is set to Density, and both Density Damping and Added Damping are
set to non-zero values, density damping is applied first, and the added damping
calculation is applied to the result of the first calculation. This value is reported over the
mA output.

Related information

Interaction between mA Output Damping and process variable damping

4.2.3 Configure Density Cutoff

Display Not available

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

Field Communicator Configure > Manual Setup > Measurements > Density > Density Cutoff

Overview

Density Cutoff Low specifies the lowest density value that will be reported as measured. All
density values below this cutoff will be reported as 0.

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.

Configuration and Use Manual 23

Configure process measurement

4.2.4 Configure two-phase flow parameters

Display Not available

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

Field Communicator Configure > Manual Setup > Measurements > Density

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.

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.

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.

24 Micro Motion® Fork Density Meters (FDM)

Configure process measurement

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.

4.3 Configure temperature measurement

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

• Configure Temperature Measurement Unit (Section 4.3.1)

• Configure Temperature Damping (Section 4.3.2)

• Configure Temperature Input (Section 4.3.3)

4.3.1 Configure Temperature Measurement Unit

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

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

Field Communicator Configure > Manual Setup > Measurements > Temperature > Temperature Unit

Configuration and Use Manual 25

Configure process measurement

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.

Procedure

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

The default setting is Degrees Celsius.

Related information

Options for Temperature Measurement Unit

Set up the API referral application

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

Options for Temperature Measurement UnitTable 4-2:

Unit description

Degrees Celsius °C °C degC

Degrees Fahrenheit °F °F degF

Degrees Rankine °R °R degR

Kelvin °K °K Kelvin

Display ProLink III

4.3.2 Configure Temperature Damping

Display Not available

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

Field Communicator Configure > Manual Setup > Measurements > Temperature > Temp Damping

Label

Field Communica­tor

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).

26 Micro Motion® Fork Density Meters (FDM)

Configure process measurement

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

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

Procedure

Enter the value you want to use for Temperature Damping.

• Default: 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.

4.3.3 Configure Temperature Input

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

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 an external
temperature or the configured fixed value. Accordingly, if you set up polling for temperature in one
area, and digital communications in another, and configure a fixed temperature value in a third, the
fixed value will be overwritten by polling and digital communications, and polling and digital
communications will overwrite each other.

Configuration and Use Manual 27

Configure process measurement

• Configure Temperature Input using ProLink III

• Configure Temperature Input using the Field Communicator

Configure Temperature Input using ProLink III

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

Procedure

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

Option Description Setup

Internal RTD tem­perature data

Polling The meter polls an external de-

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

vice for temperature data. This
data will be available in addi­tion to the internal RTD tem­perature data.

a. Set Line Temperature Source to Internal RTD.
b. Click Apply.

a. Set Line Temperature Source to Poll for External Value.
b. Set Polling Slot to an available slot.
c. Set Polling Control to Poll as Primary or Poll as Secondary.

Option Description

Poll as Primary No other HART masters will be on the

Poll as Secondary Other HART masters will be on the net-

network. The Field Communicator is not
a HART master.

work. The Field Communicator is not a
HART master.

d. Set External Device Tag to the HART tag of the temperature

device.

e. Click Apply.

Digital communica­tions

A host writes temperature data
to the meter at appropriate in­tervals. This data will be availa­ble in addition to the internal
RTD temperature data.

a. Set Line Temperature Source to Fixed Value or Digital Communica-

tions.
b. Click Apply.
c. Perform the necessary host programming and communica-

tions setup to write temperature data to the meter at appro-

priate intervals.

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:

28 Micro Motion® Fork Density Meters (FDM)

• For polling:

- Verify the wiring between the meter and the external device.

- Verify the HART tag of the external device.

• For digital communications:

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

- Verify that the host is writing to the correct register in memory, using the correct data

type.

Configure Temperature Input using the Field Communicator

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

Method Description Setup

Internal RTD tem­perature data

Polling The meter polls an external de-

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

vice for temperature data. This
data will be available in addi­tion to the internal RTD tem­perature data.

a. Choose Configure > Manual Setup > Measurements > External Inputs

> Temperature.

b. Set External Temperature to Disable.

a. Choose Configure > Manual Setup > Measurements > External Inputs

> Temperature.
b. Set External Temperature to Enable.
c. Choose Configure > Manual Setup > Inputs/Outputs > External Device

Polling.
d. Choose an unused polling slot.
e. Set Poll Control to Poll as Primary or Poll as Secondary.

Configure process measurement

Digital communica­tions

A host writes temperature data
to the meter at appropriate in­tervals. This data will be availa­ble in addition to the internal
RTD temperature data.

Option Description

Poll as Primary No other HART masters will be on the

network. The Field Communicator is not
a HART master.

Poll as Secondary Other HART masters will be on the net-

work. The Field Communicator is not a
HART master.

f. Set External Device Tag to the HART tag of the external tem-

perature device.
g. Set Polled Variable to Temperature.

a. Choose Configure > Manual Setup > Measurements > External Inputs

> Temperature.
b. Set External Temperature to Enable.
c. Perform the necessary host programming and communica-

tions setup to write temperature data to the meter at appro-

priate intervals.

Configuration and Use Manual 29

Configure process measurement

Postrequisites

Choose Service Tools > Variables > External Variables and verify the value for External
Temperature.

Need help? If the value is not correct:

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

• For polling:

- Verify the wiring between the meter and the external device.

- Verify the HART tag of the external device.

• For digital communications:

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

- Verify that the host is writing to the correct register in memory, using the correct data

type.

• If necessary, apply an offset.

4.4 Configure the pressure input

Pressure data is required to calculate base density from line density.

• The meter does not measure pressure, so you must provide an external pressure

input.

• You must use absolute pressure.

• Pressure data is required for several different measurements.

• There are several different methods to obtain pressure data.

Tip

A fixed pressure value is not recommended as it can produce inaccurate process data.

• Configure the pressure input using ProLink III (Section 4.4.1)

• Configure the pressure input using the Field Communicator (Section 4.4.2)

4.4.1 Configure the pressure input using ProLink III

1. Choose Device Tools > Configuration > Process Measurement > Line Pressure.

2. Set Pressure Type to match the pressure measurement from the external pressure
device.

Option Description

Absolute The external pressure device reports absolute pressure.

Gauge The external pressure device reports gauge pressure.

30 Micro Motion® Fork Density Meters (FDM)

Restriction

If Line Pressure Source is set to Fixed, you cannot configure Pressure Type. You must enter the
pressure value in the required form. To set Pressure Type, you may need to change the setting
of Line Pressure Source.

The meter requires gauge pressure. If you select Absolute, the device will convert the
input pressure value to the equivalent gauge pressure.

3. Set Pressure Unit to the unit used by the external pressure device.

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.

4. Choose the method used to supply pressure data and perform the required setup.

Option Description Setup

Polling The meter polls an external de-

vice for pressure data.

a. Set Pressure Source to Poll for External Value.
b. Set Polling Slot to an available slot.
c. Set Polling Control to Poll as Primary or Poll as Secondary.

Configure process measurement

Digital communica­tions

Option Description

Poll as Primary No other HART masters will be on the

network. The Field Communicator is not
a HART master.

Poll as Secondary Other HART masters will be on the net-

work. The Field Communicator is not a
HART master.

d. Set External Device Tag to the HART tag of the temperature

device.

A host writes pressure data to
the meter at appropriate inter­vals.

a. Set Pressure Source to Fixed Value or Digital Communications.
b. Perform the necessary host programming and communica-

tions setup to write pressure data to the meter at appropri­ate intervals.

Postrequisites

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 polling:

- Verify the wiring between the meter and the external device.

Configuration and Use Manual 31

Configure process measurement

- Verify the HART tag of the external device.

• For digital communications:

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

- Verify that the host is writing to the correct register in memory, using the correct data

type.

• If necessary, apply an offset.

Note

Do not use the offset in conjunction with the fixed pressure value. Enter the adjusted value.

Related information

Set up the API referral application

4.4.2 Configure the pressure input using the Field Communicator

1. Choose Configure > Manual Setup > Measurements > External Inputs > Pressure.

2. Set Pressure Input to Enable.

3. Set Pressure Type to match the pressure measurement from the external pressure

device.

Option Description

Absolute The external pressure device reports absolute pressure.

Gauge The external pressure device reports gauge pressure.

Restriction

If Line Pressure Source is set to Fixed, you cannot configure Pressure Type. You must enter the
pressure value in the required form. To set Pressure Type, you may need to change the setting
of Line Pressure Source.

The meter requires gauge pressure. If you select Absolute, the device will convert the
input pressure value to the equivalent gauge pressure.

4. Set Pressure Unit to the unit used by the external pressure device.

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.

5. Set up the pressure input.

a. Choose Configure > Manual Setup > Inputs/Outputs > External Device Polling.

b. Choose an unused polling slot.

32 Micro Motion® Fork Density Meters (FDM)

Configure process measurement

c. Set Polling Control to Poll as Primary or Poll as Secondary.

Option Description

Poll as Primary No other HART masters will be on the network. The

Field Communicator is not a HART master.

Poll as Secondary Other HART masters will be on the network. The

Field Communicator is not a HART master.

d. Set External Device Tag to the HART tag of the external pressure device.

e. Set Polled Variable to Pressure.

Postrequisites

Choose Service Tools > Variables > External Variables and verify the value for External Pressure.

Need help? If the value is not correct:

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

• For polling:

- Verify the wiring between the meter and the external device.

- Verify the HART tag of the external device.

• For digital communications:

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

- Verify that the host is writing to the correct register in memory, using the correct data

type.

• If necessary, apply an offset.

Related information

Set up the API referral application

4.4.3 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 4-3:

Label

Unit description

Feet water @ 68 °F FTH2O Ft Water @ 68°F ftH2O

Inches water @ 4 °C INW4C In Water @ 4°C inH2O @4DegC

Inches water @ 60 °F INW60 In Water @ 60°F inH2O @60DegF

Configuration and Use Manual 33

Display ProLink III Field Communicator

Configure process measurement

Options for Pressure Measurement Unit (continued)Table 4-3:

Label

Unit description

Inches water @ 68 °F INH2O In Water @ 68°F inH2O

Millimeters water @ 4 °C mmW4C mm Water @ 4°C mmH2O @4DegC

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

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

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

Pounds per square inch PSI PSI psi

Bar BAR bar bar

Millibar mBAR millibar mbar

Grams per square centimeter G/SCM g/cm2 g/Sqcm

Kilograms per square centimeter KG/SCM kg/cm2 kg/Sqcm

Pascals PA pascals Pa

Kilopascals KPA Kilopascals kPa

Megapascals MPA Megapascals MPa

Torr @ 0 °C TORR Torr @ 0°C torr

Atmospheres ATM atms atms

Display ProLink III Field Communicator

4.5 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 4.5.1)

• Set up the API referral application using the Field Communicator (Section 4.5.2)

4.5.1 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.

34 Micro Motion® Fork Density Meters (FDM)

Configure process measurement

1. Choose Device Tools > Configuration > Transmitter Options.

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 > API Referral.

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)

Restriction

The API referral application is 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.

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 35

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, reference temperature, 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 4-4:

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

3

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)

60 °F 0 psi (g)

15 °C 0 kPa (g)

60 °F 0 psi (g)

60 °F 0 psi (g)

Default reference
pressure

36 Micro Motion® Fork Density Meters (FDM)

Configure process measurement

API tables, process fluids, measurement units, and default reference values (continued)Table 4-4:

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

3

temperature

15 °C 0 kPa (g)

60 °F 0 psi (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, optionally, 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

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 an external
temperature or the configured fixed value. Accordingly, if you set up polling for temperature in one
area, and digital communications in another, and configure a fixed temperature value in a third, the
fixed value will be overwritten by polling and digital communications, and polling and digital
communications will overwrite each other.

Configuration and Use Manual 37

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

• If you plan to poll an external device, the primary mA output (Channel A) must be

• The pressure measurement must be gauge pressure, not atmospheric pressure. If

• 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

Procedure

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

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

wired to support HART communications.

your pressure input is absolute, you can set the pressure type to absolute and it will
be converted to gauge for the API calculations.

that is configured in the transmitter.

required setup.

Option Description Setup

Internal RTD tem­perature data

Polling The meter polls an external de-

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

vice for temperature data. This
data will be available in addi­tion to the internal RTD tem­perature data.

a. Set Line Temperature Source to Internal RTD.
b. Click Apply.

a. Set Line Temperature Source to Poll for External Value.
b. Set Polling Slot to an available slot.
c. Set Polling Control to Poll as Primary or Poll as Secondary.

Option Description

Poll as Primary No other HART masters will be on the

Poll as Secondary Other HART masters will be on the net-

d. Set External Device Tag to the HART tag of the temperature

device.

e. Click Apply.

network. The Field Communicator is not
a HART master.

work. The Field Communicator is not a
HART master.

38 Micro Motion® Fork Density Meters (FDM)

Option Description Setup

Digital communica­tions

A host writes temperature data
to the meter at appropriate in­tervals. This data will be availa­ble in addition to the internal
RTD temperature data.

a. Set Line Temperature Source to Fixed Value or Digital Communica-

tions.
b. Click Apply.
c. Perform the necessary host programming and communica-

tions setup to write temperature data to the meter at appro-

priate intervals.

3. Choose the method used to supply pressure data and perform the required setup.

Option Description Setup

Polling The meter polls an external de-

vice for pressure data.

a. Set Pressure Source to Poll for External Value.
b. Set Polling Slot to an available slot.
c. Set Polling Control to Poll as Primary or Poll as Secondary.

Option Description

Poll as Primary No other HART masters will be on the

Poll as Secondary Other HART masters will be on the net-

Configure process measurement

network. The Field Communicator is not
a HART master.

work. The Field Communicator is not a
HART master.

Digital communica­tions

d. Set External Device Tag to the HART tag of the temperature

device.

A host writes pressure data to
the meter at appropriate inter­vals.

a. Set Pressure Source to Fixed Value or Digital Communications.
b. Perform the necessary host programming and communica-

tions setup to write pressure data to the meter at appropri-

ate intervals.

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 polling:

- Verify the wiring between the meter and the external device.

- Verify the HART tag of the external device.

• For digital communications:

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

Configuration and Use Manual 39

Configure process measurement

- Verify that the host is writing to the correct register in memory, using the correct data

type.

• If necessary, apply an offset.

4.5.2 Set up the API referral application using the Field Communicator

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

1. Enable the API referral application using the Field Communicator

2. Configure API referral using the Field Communicator

3. Set up temperature and pressure data for API referral using the Field Communicator

Enable the API referral application using the Field Communicator

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 Overview > Device Information > Applications > Enable/Disable Applications.

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

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

3. Enable the API referral application.

Configure API referral using the Field Communicator

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 Configure > Manual Setup > Measurements > API Referral.

2. Choose API Referral Setup.

3. Specify the API table that you want to use for measurement.

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

a. Set API Table Number to the number that matches the API table units that you

want to use for referred density.

40 Micro Motion® Fork Density Meters (FDM)

Configure process measurement

Your choice also determines the measurement units to be used for temperature
and pressure, and the default values for reference temperature and reference
pressure.

API Table Number

Measurement
unit for referred
density

Temperature
measurement
unit

Pressure meas­urement unit

Default refer­ence tempera­ture

Default refer­ence pressure

5 °API °F psi (g) 60 °F 0 psi (g)

(1)

6

°API °F psi (g) 60 °F 0 psi (g)

23 SGU °F psi (g) 60 °F 0 psi (g)

(1)

24

SGU °F psi (g) 60 °F 0 psi (g)

53 kg/m³ °C kPa (g) 15 °C 0 kPa (g)

(1)

54

(1) Used only with API Table Letter = C.

kg/m³ °C kPa (g) 15 °C 0 kPa (g)

b. Set API Table Letter to the letter of the API table group that is appropriate for your

process fluid.

API Table Letter Process fluids

A Generalized crude and JP4

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

heating oils, fuel oils, diesel, gas oil

(1)

C

D Lubricating oils

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

Liquids with a constant base density or known thermal expansion
coefficient (TEC). You will be required to enter the TEC for your
process fluid.

(1) Used only with API Table Number = 6, 24, or 54.

Restriction

The API referral application is 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.

API Table Number and API Table Letter uniquely identify the API table. The selected API
table is displayed, and the meter automatically changes the density unit,
temperature unit, pressure unit, reference temperature, 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.

Configuration and Use Manual 41

Configure process measurement

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

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

6. If required, set Ref Temperature to the temperature to which density will be corrected

7. If required, set Ref Pressure (Gauge) to the pressure to which density will be corrected

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.

in referred density calculations.

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

a. Choose Service Tools > Maintenance > Modbus Data > Write Modbus Data.

b. Write the desired reference temperature to Registers 319–320, in the

measurement unit required by the selected API table. Use 32-bit IEEE floating­point format.

in referred density calculations.

The default reference pressure is determined by the selected API table. API referral
requires gauge pressure.

a. Choose Service Tools > Maintenance > Modbus Data > Write Modbus Data.

b. Write the desired reference pressure to Registers 4601–4602, in the

measurement unit required by the selected API table. Use 32-bit IEEE floating­point format.

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 4-5:

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

53A Unit: kg/m

Range: 610 to 1075 kg/m³

3

Default reference
temperature

60 °F 0 psi (g)

60 °F 0 psi (g)

15 °C 0 kPa (g)

Default reference
pressure

42 Micro Motion® Fork Density Meters (FDM)

Configure process measurement

API tables, process fluids, measurement units, and default reference values (continued)Table 4-5:

Default reference

Process fluid API table Referred density (API)

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

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)

5B Unit: °API

Range: 0 to 85 °API

23B Unit: SGU

Range: 0.6535 to 1.0760
SGU

53B Unit: kg/m

Range: 653 to 1075 kg/m³

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

3

temperature

60 °F 0 psi (g)

60 °F 0 psi (g)

15 °C 0 kPa (g)

60 °F 0 psi (g)

60 °F 0 psi (g)

15 °C 0 kPa (g)

Default reference
pressure

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.

Set up temperature and pressure data for API referral using the Field Communicator

The API referral application uses temperature and, optionally, 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.

Configuration and Use Manual 43

Configure process measurement

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 an external
temperature or the configured fixed value. Accordingly, if you set up polling for temperature in one
area, and digital communications in another, and configure a fixed temperature value in a third, the
fixed value will be overwritten by polling and digital communications, and polling and digital
communications will overwrite each other.

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

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

The pressure measurement must be gauge pressure, not atmospheric pressure. If your
pressure input is absolute, you can set the pressure type to absolute and it will be
converted to gauge for the API calculations.

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.

Method Description Setup

Internal tempera­ture

Temperature data from the on­board temperature sensor
(RTD) will be used for all meas­urements and calculations. No
external temperature data will
be available.

a. Choose Configure > Manual Setup > Measurements > External Inputs

> Temperature.

b. Set External Temperature to Disable.

44 Micro Motion® Fork Density Meters (FDM)

Method Description Setup

Polling The meter polls an external de-

vice for temperature data. This
data will be available in addi­tion to the internal tempera­ture data.

Digital communica­tions

A host writes temperature data
to the meter at appropriate in­tervals. This data will be availa­ble in addition to the internal
temperature data.

a. Choose Configure > Manual Setup > Measurements > External Inputs

> Temperature.
b. Set External Temperature to Enable.
c. Choose Configure > Manual Setup > Inputs/Outputs > External Device

Polling.
d. Choose an unused polling slot.
e. Set Poll Control to Poll as Primary or Poll as Secondary.

Option Description

Poll as Primary No other HART masters will be on the

Poll as Secondary Other HART masters will be on the net-

f. Set External Device Tag to the HART tag of the external tem-

perature device.
g. Set Polled Variable to Temperature.

a. Choose Configure > Manual Setup > Measurements > External Inputs

> Temperature.
b. Set External Temperature to Enable.
c. Perform the necessary host programming and communica-

tions setup to write temperature data to the transmitter at

appropriate intervals.

Configure process measurement

network. The Field Communicator is not
a HART master.

work. The Field Communicator is not a
HART master.

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

Configuration and Use Manual 45

Configure process measurement

Method Description Setup

Polling The meter polls an external de-

vice for pressure data.

Digital communica­tions

A host writes pressure data to
the meter at appropriate inter­vals.

a. Choose Configure > Manual Setup > Measurements > External Inputs

b. Set Pressure Input to Enable.
c. Choose Configure > Manual Setup > Inputs/Outputs > External Device

d. Choose an unused polling slot.
e. Set Poll Control to Poll as Primary or Poll as Secondary.

Option Description

Poll as Primary No other HART masters will be on the

Poll as Secondary Other HART masters will be on the net-

f. Set External Device Tag to the HART tag of the external pres-

g. Set Polled Variable to Pressure.

a. Choose Configure > Manual Setup > Measurements > External Inputs

b. Set Pressure Input to Enable.
c. Perform the necessary host programming and communica-

> Pressure.

Polling.

network. The Field Communicator is not
a HART master.

work. The Field Communicator is not a
HART master.

sure device.

> Pressure.

tions setup to write pressure data to the transmitter at ap­propriate intervals.

Postrequisites

Choose Service Tools > Variables > External Variables and verify the values for External
Temperature and External Pressure.

Need help? If the value is not correct:

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

• For polling:

- Verify the wiring between the meter and the external device.

- Verify the HART tag of the external device.

• For digital communications:

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

- Verify that the host is writing to the correct register in memory, using the correct data

type.

• If necessary, apply an offset.

46 Micro Motion® Fork Density Meters (FDM)

Configure process measurement

4.6 Set up concentration measurement

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

Related information

Preparing to set up concentration measurement
Set up concentration measurement using ProLink III
Set up concentration measurement using the Field Communicator

4.6.1 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:

• 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

Configuration and Use Manual 47

Configure process measurement

4.6.2 Set up concentration measurement using ProLink III

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

Restriction

This section does not cover building a concentration matrix. See Micro Motion Enhanced Density
Application: Theory, Configuration, and Use for detailed information on building a matrix.

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.

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

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

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

The concentration measurement application must be enabled on your device.

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.

48 Micro Motion® Fork Density Meters (FDM)

Configure process measurement

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.

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.

Configuration and Use Manual 49

Configure process measurement

4. In Step 1, ensure that the setting of Derived Variable matches the derived variable

5. Load one or more matrices.

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

Related information

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.

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.

measurement.

Matrix switching
Derived variables and calculated process variables
Configure Temperature Measurement Unit
Configure Density Measurement Unit
Measuring Net Mass Flow Rate and Net Volume Flow Rate

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.

50 Micro Motion® Fork Density Meters (FDM)

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 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

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

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 an external
temperature or the configured fixed value. Accordingly, if you set up polling for temperature in one
area, and digital communications in another, and configure a fixed temperature value in a third, the
fixed value will be overwritten by polling and digital communications, and polling and digital
communications will overwrite each other.

Prerequisites

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

Procedure

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

Configuration and Use Manual 51

Configure process 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

Polling The meter polls an external de-

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

vice for temperature data. This
data will be available in addi­tion to the internal RTD tem­perature data.

a. Set Line Temperature Source to Internal RTD.
b. Click Apply.

a. Set Line Temperature Source to Poll for External Value.
b. Set Polling Slot to an available slot.
c. Set Polling Control to Poll as Primary or Poll as Secondary.

Option Description

Poll as Primary No other HART masters will be on the

Poll as Secondary Other HART masters will be on the net-

network. The Field Communicator is not
a HART master.

work. The Field Communicator is not a
HART master.

Digital communica­tions

d. Set External Device Tag to the HART tag of the temperature

device.

e. Click Apply.

A host writes temperature data
to the meter at appropriate in­tervals. This data will be availa­ble in addition to the internal
RTD temperature data.

a. Set Line Temperature Source to Fixed Value or Digital Communica-

tions.
b. Click Apply.
c. Perform the necessary host programming and communica-

tions setup to write temperature data to the meter at appro-

priate intervals.

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 polling:

- Verify the wiring between the meter and the external device.

- Verify the HART tag of the external device.

• For digital communications:

52 Micro Motion® Fork Density Meters (FDM)

Configure process measurement

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

- Verify that the host is writing to the correct register in memory, using the correct data

type.

• 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.

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.

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

Configuration and Use Manual 53

Configure process measurement

5. If applicable, use the Equation Selection parameter to specify the type of calculation to

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.

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.

Related information

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

54 Micro Motion® Fork Density Meters (FDM)

Configure process measurement

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.

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 Active Matrix to the matrix you want to use and click Change Matrix.

Note

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

Related information

Matrix switching

4.6.3 Set up concentration measurement using the Field Communicator

This section guides you through most of the tasks related to setting up and implementing
the concentration measurement application.

Restrictions

• This section does not cover building a concentration matrix. See Micro Motion Enhanced

Density Application: Theory, Configuration, and Use for detailed information on building a

matrix.

• You cannot load a concentration matrix using the Field Communicator. If you need to load a

matrix, you must use ProLink III.

1. Enable the concentration measurement application using the Field Communicator

2. Set reference temperature values for specific gravity using the Field Communicator

3. Provide temperature data for concentration measurement using the Field Communicator

4. Modify matrix names and labels using the Field Communicator

5. Modify concentration measurement operational parameters using the

Field Communicator

6. Select the active concentration matrix using the Field Communicator

Enable the concentration measurement application using the Field Communicator

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 Overview > Device Information > Applications > Enable/Disable Applications.

Configuration and Use Manual 55

Configure process measurement

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

3. Enable the concentration measurement application.

Set reference temperature values for specific gravity using the Field Communicator

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.

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

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. To check the setting of Derived Variable, choose Configure > Manual Setup >
Measurements > Conc Measure (CM) > CM Configuration.

Important

Do not change the setting of Derived Variable. If you change the setting of Derived Variable, all existing
concentration matrices will be deleted from transmitter memory.

Procedure

1. Choose Configure > Manual Setup > Measurements > Conc Measure (CM) > Configure Matrix.

2. Set Matrix Being Configured to the matrix you want to modify.

3. Choose Reference Conditions, then perform the following actions:

a. Set Reference Temp to the temperature to which line density will be corrected for

use in the specific gravity calculation.

b. Set Water Ref Temp to the water temperature that will be used in the specific

gravity calculation.

c. Set Water Ref Density 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.

Related information

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

56 Micro Motion® Fork Density Meters (FDM)

Configure process measurement

Provide temperature data for concentration measurement using the Field Communicator

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

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 an external
temperature or the configured fixed value. Accordingly, if you set up polling for temperature in one
area, and digital communications in another, and configure a fixed temperature value in a third, the
fixed value will be overwritten by polling and digital communications, and polling and digital
communications will overwrite each other.

Prerequisites

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

Procedure

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

Method Description Setup

Internal RTD tem­perature data

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

a. Choose Configure > Manual Setup > Measurements > External Inputs

> Temperature.

b. Set External Temperature to Disable.

Configuration and Use Manual 57

Configure process measurement

Method Description Setup

Polling The meter polls an external de-

vice for temperature data. This
data will be available in addi­tion to the internal RTD tem­perature data.

Digital communica­tions

A host writes temperature data
to the meter at appropriate in­tervals. This data will be availa­ble in addition to the internal
RTD temperature data.

a. Choose Configure > Manual Setup > Measurements > External Inputs

b. Set External Temperature to Enable.
c. Choose Configure > Manual Setup > Inputs/Outputs > External Device

d. Choose an unused polling slot.
e. Set Poll Control to Poll as Primary or Poll as Secondary.

Option Description

Poll as Primary No other HART masters will be on the

Poll as Secondary Other HART masters will be on the net-

f. Set External Device Tag to the HART tag of the external tem-

g. Set Polled Variable to Temperature.

a. Choose Configure > Manual Setup > Measurements > External Inputs

b. Set External Temperature to Enable.
c. Perform the necessary host programming and communica-

> Temperature.

Polling.

network. The Field Communicator is not
a HART master.

work. The Field Communicator is not a
HART master.

perature device.

> Temperature.

tions setup to write temperature data to the meter at appro­priate intervals.

Postrequisites

Choose Service Tools > Variables > External Variables and verify the value for External
Temperature.

Need help? If the value is not correct:

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

• For polling:

- Verify the wiring between the meter and the external device.

- Verify the HART tag of the external device.

• For digital communications:

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

- Verify that the host is writing to the correct register in memory, using the correct data

type.

• If necessary, apply an offset.

58 Micro Motion® Fork Density Meters (FDM)

Configure process measurement

Modify matrix names and labels using the Field Communicator

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 Configure > Manual Setup > Measurements > Conc Measure (CM) > Configure Matrix.

2. Set Matrix Being Configured to the matrix you want to modify.

3. Set Matrix Name to the name to be used for the matrix.

4. Set Concentration Units to the label that will be used for the concentration unit.

5. If you set Concentration Units to Special, choose Concentration Label and enter the custom
label.

Modify concentration measurement operational parameters using the Field Communicator

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 type to be used.

1. Choose Configure > Manual Setup > Measurements > Conc Measure (CM) > Configure Matrix.

2. Set Matrix Being Configured to the matrix you want to modify.

3. If applicable, set Equation Type to the type of calculation to be used.

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

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

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.

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.

Configuration and Use Manual 59

Configure process measurement

5. Choose Configure > Manual Setup > Measurements > Conc Measure (CM) > CM Configuration,

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

will be posted.

b. Choose Online > Configure > Alert Setup > Concentration Measurement Alerts.

c. Enable or disable the high and low alerts for temperature and density, as desired.

Important

If you are using 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.

then enable or disable Matrix Switching as desired.

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.

Related information

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

Select the active concentration matrix using the Field Communicator

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.

Set Active Matrix to the matrix you want to use.

Related information

Matrix switching

4.6.4 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.

60 Micro Motion® Fork Density Meters (FDM)

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 4-6:

Current value of

Equation

Specific Gravity N/A

°Baumé 1.0 or greater

°Brix N/A

°Plato N/A

°Twaddell N/A

specific gravity Equation

(°Baumé heavy)

Less than 1.0
(°Baumé light)

ρ

SG =

°Baumé = 145 −

°Baumé =

°Brix = 318.906 −

RefTemp

ρ

WaterRefTemp

140

− 130

SG

145

SG

(

384.341
SG

66.1086

+

)

(

SG

)

2

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

°Twaddell = 200 ×(SG − 1

)

Configure process measurement

2

)

SG

ρ

RefTemp

ρ

WaterRefTemp

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

Related information

Set reference temperature values for specific gravity using ProLink III
Set reference temperature values for specific gravity using the Field Communicator

4.6.5 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.

Configuration and Use Manual 61

Configure process measurement

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

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.

On the display, the matrix number for the active matrix will alternately flash with the
concentration and referred density units.

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.

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.

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

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

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

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

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

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

Example: Using matrix switching to increase measurement accuracy

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.

62 Micro Motion® Fork Density Meters (FDM)

Configure process measurement

4.6.6 Measuring Net Mass Flow Rate and Net Volume Flow Rate

Net Mass Flow Rate is calculated by multiplying concentration by the mass flow rate. Net
Volume Flow Rate is calculated by multiplying concentration by the volume flow rate.

To measure Net Mass Flow Rate, the following are required:

• A mass flow rate process variable, either measured or calculated, depending on

what is available on your meter

• Concentration measurement configured and active, with Mass Concentration

(Density) set as the derived variable

To measure Net Volume Flow Rate, the following are required:

• A volume flow rate process variable, either measured or calculated, depending on

what is available on your meter

• Concentration measurement configured and active, with Volume Concentration

(Density) set as the derived variable

4.7 Set up flow rate measurement

The meter does not measure flow rate directly. However, you can provide volume flow rate
data to the meter and use this data to calculate mass flow rate.

4.7.1 Set up flow rate measurement using ProLink III

Prerequisites

• To calculate mass flow rate, you must be able to supply volume flow rate data to the

meter.

• 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 > I/O > Inputs > External Inputs.

2. Set Mass Flow (Calculated) to Enabled and click Apply.

3. Set Mass Flow Rate (Calculated) Unit to the unit in which the mass flow rate will be

reported.

4. Set Line Volume Flow Rate Unit to the units used by the external volume measurement

device

5. Set Line Volume Flow Source to the method to be used to retrieve volume flow data

and perform the required setup.

Configuration and Use Manual 63

Configure process measurement

Option Description Setup

Polling The meter polls an external de-

vice for volume flow data and
calculates the equivalent mass
flow rate.

Digital communica­tions

A host writes volume flow data
to the meter at appropriate in­tervals, and the meter calcu­lates the equivalent mass flow
rate.

Tip

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

a. Set Line Volume Flow Source to Poll for External Value.
b. Set Polling Slot to an available slot.
c. Set Polling Control to Poll as Primary or Poll as Secondary.
d. Set External Device Tag to the HART tag of the volume flow

a. Set Line Volume Flow Source to Fixed Value or Digital Communica-

b. Perform the necessary host programming and communica-

The following process variables are now available:

• Line Volume Flow Rate

• Mass Flow Rate (Calculated)

measurement device.

tions.

tions setup to write volume flow data to the meter at appro­priate intervals.

If the concentration measurement application is enabled and configuration requirements
are met, one of the following process variables is also available:

• Net Volume Flow Rate

• Net Mass Flow Rate

Postrequisites

To verify the volume flow rate, view the value displayed on the ProLink III main window, in
the Inputs group.

To verify the calculated mass flow rate, set up one of the ProLink III gauges to display it.

Need help? If the value is not correct:

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

• For polling:

- Verify the wiring between the meter and the external device.

- Verify the HART tag of the external device.

• For digital communications:

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

- Verify that the host is writing to the correct register in memory, using the correct data

type.

• If necessary, apply an offset.

Related information

Measuring Net Mass Flow Rate and Net Volume Flow Rate

64 Micro Motion® Fork Density Meters (FDM)

4.7.2 Set up flow rate measurement using the Field Communicator

Prerequisites

• To calculate mass flow rate, you must be able to supply volume flow rate data to the

meter.

• If you plan to poll an external device, the primary mA output must be wired to

support HART communications.

Procedure

1. Choose Configure > Manual Setup > Measurements > Mass (Calculated) and set Mass Flow

Rate Unit to the unit in which the mass flow rate will be reported.

2. Choose Configure > Manual Setup > Measurements > Volume and set Volume Flow Rate Unit

to the unit used by the external volume measurement device.

3. Choose Configure > Manual Setup > Measurements > External Inputs > Volumeand set Volume

Flow Source to Enabled.

4. Choose the method to be used to supply volume flow rate data, and perform the

required setup.

Configure process measurement

Method Description Setup

Polling The meter polls an external de-

vice for volume flow rate data.

Digital communica­tions

A host writes volume flow rate
data to the meter at appropri­ate intervals.

a. Choose Configure > Manual Setup > Inputs/Outputs > External Device

Polling.
b. Choose an unused polling slot.
c. Set Poll Control to Poll as Primary or Poll as Secondary.

Option Description

Poll as Primary No other HART masters will be on the

Poll as Secondary Other HART masters will be on the net-

d. Set External Device Tag to the HART tag of the external pres-

sure device.
e. Set Polled Variable to Volume from Mag/Vortex Meter.

a. Perform the necessary host programming and communica-

tions setup to write volume flow rate data to the transmitter

at appropriate intervals.

network. The Field Communicator is not
a HART master.

work. The Field Communicator is not a
HART master.

Tip

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

Configuration and Use Manual 65

Configure process measurement

The following process variables are now available:

• Line Volume Flow Rate

• Mass Flow Rate (Calculated)

If the concentration measurement application is enabled and configuration requirements
are met, one of the following process variables is also available:

• Net Volume Flow Rate

• Net Mass Flow Rate

Postrequisites

Choose Service Tools > Variables > External Variables and verify the values for External Volume
Flow Rate and Mass Flow Rate (Calculated).

Need help? If the value is not correct:

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

• For polling:

• For digital communications:

• If necessary, apply an offset.

- Verify the wiring between the meter and the external device.

- Verify the HART tag of the external device.

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

- Verify that the host is writing to the correct register in memory, using the correct data

type.

Related information

Measuring Net Mass Flow Rate and Net Volume Flow Rate

66 Micro Motion® Fork Density Meters (FDM)

Configure device options and preferences

5 Configure device options and

preferences

Topics covered in this chapter:

• Configure the transmitter display

• Enable or disable the Acknowledge All Alerts display command

• Configure security for the display menus

• Configure alert handling

• Configure informational parameters

5.1 Configure the transmitter display

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

• Configure the language used for the display (Section 5.1.1)

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

(Section 5.1.2)

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

(Section 5.1.3)

• Configure the refresh rate of data shown on the display (Section 5.1.4)

• Enable or disable automatic scrolling through the display variables (Section 5.1.5)

5.1.1 Configure the language used for the display

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

ProLink III Device Tools > Configuration > Transmitter Display > General

Field Communicator Configure > Manual Setup > Display > Language

Overview

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

Procedure

Select the language you want to use.

The languages available depend on your transmitter model and version.

Configuration and Use Manual 67

Configure device options and preferences

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

Display Not available

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

Field Communicator Configure > Manual Setup > Display > Display Variables

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.

Procedure

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

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

Display Not available

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

Field Communicator Configure > Manual Setup > Display > Decimal Places

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.

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.

68 Micro Motion® Fork Density Meters (FDM)

Configure device options and preferences

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.

5.1.4 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

Field Communicator Configure > Manual Setup > Display > Display Behavior > Refresh Rate

Overview

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

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).

5.1.5 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

Field Communicator Configure > Manual Setup > Display > Display Behavior > Auto Scroll

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.

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.

Configuration and Use Manual 69

Configure device options and preferences

Option Description

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.

Tip

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

5.2 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

Field Communicator Configure > Manual Setup > Display > Display Menus > Acknowledge All

Overview

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

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.

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.

70 Micro Motion® Fork Density Meters (FDM)

Configure device options and preferences

5.3 Configure security for the display menus

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

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

Field Communicator Configure > Manual Setup > Display > Display Menus

Overview

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

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.

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 passcode for access to the off-line menu, enable or disable Off-Line

Password.

Option Description

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

menu.

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

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

Configuration and Use Manual 71

Configure device options and preferences

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

Tip

Record your passcode for future reference.

5.4 Configure alert handling

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

• Configure Fault Timeout (Section 5.4.1)

• Configure Alert Severity (Section 5.4.2)

5.4.1 Configure Fault Timeout

Display Not available

ProLink III Device Tools > Configuration > Fault Processing

Field Communicator Configure > Alert Setup > Alert Severity > Fault Timeout

Overview

Fault Timeout controls the delay before fault actions are performed.

Restriction

Fault Timeout is applied only to the following alerts (listed by Status Alert Code): A003, A004, A008,
A016, 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.

72 Micro Motion® Fork Density Meters (FDM)

5.4.2 Configure Alert Severity

Display Not available

ProLink III Device Tools > Configuration > Alert Severity

Field Communicator Configure > Alert Setup > Alert Severity > Change Alert Severity

Overview

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

Restrictions

• For some alerts, Alert Severity is not configurable.

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

Tip

Micro Motion recommends using the default settings for Alert Severity unless you have a specific
requirement to change them.

Configure device options and preferences

Procedure

1. Select a status alert.

2. For the selected status alert, set Alert Severity as desired.

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

applicable).

• 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

Ignore No action

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.

Configuration and Use Manual 73

Configure device options and preferences

Status alerts and options for Status Alert Severity

Status alerts and Status Alert SeverityTable 5-1:

Alert number Alert title Default severity

A001 EEPROM Error Fault No

A002 RAM Error Fault No

A003 No Sensor Response Fault Yes

A004 Temperature Overrange Fault No

A006 Characterization Required Fault Yes

A008 Density Overrange Fault Yes

A009 Transmitter Initializing/Warming Up

A010 Calibration Failure Fault No

A014 Transmitter Failure Fault No

A016 Sensor Temperature (RTD) Failure Fault Yes

A020 Calibration Factors Missing Fault Yes

A021 Transmitter/Sensor/Software Mis-

A029 Internal Electronics Failure Fault No

A030 Incorrect Board Type Fault No

A033 Insufficient Pickoff Signal Fault Yes

A037 Sensor Check Failed Fault Yes

A038 Time Period Signal Out of Range Fault No

A100 mA Output 1 Saturated Informational To Informational or

A101 mA Output 1 Fixed Informational To Informational or

A102 Drive Overrange Informational Yes

A104 Calibration in Progress Informational To Informational or

A105 Two-Phase Flow Informational Yes

A106 Burst Mode Enabled Informational To Informational or

A107 Power Reset Occurred Informational Yes

A113 mA Output 2 Saturated Informational To Informational or

A114 mA Output 2 Fixed Informational To Informational or

User can reset
severity

Ignore Yes

or Significant Process Instability

Fault No

match

Ignore only

Ignore only

Ignore only

Ignore only

Ignore only

Ignore only

74 Micro Motion® Fork Density Meters (FDM)

Configure device options and preferences

Status alerts and Status Alert Severity (continued)Table 5-1:

User can reset

Alert number Alert title Default severity

A115 No External Input or Polled Data Informational To Informational or

A116 Temperature Overrange (API Referral) Informational Yes

A117 Density Overrange (API Referral) Informational Yes

A118 Discrete Output 1 Fixed Informational To Informational or

A120 Curve Fit Failure (Concentration) Informational No

A121 Extrapolation Alert (Concentration) Informational Yes

A122 Pressure Overrange (API Referral) Informational Yes

A132 Sensor Simulation Active Informational Yes

A133 EEPROM Error (Display) Informational Yes

A136 Incorrect Display Type Informational Yes

severity

Ignore only

Ignore only

5.5 Configure informational parameters

Display Not available

ProLink III Device Tools > Configuration > Meter Information

Field Communicator Configure > Manual Setup > Info Parameters

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.

Configuration and Use Manual 75

Configure device options and preferences

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.

76 Micro Motion® Fork Density Meters (FDM)

Integrate the meter with the control system

6 Integrate the meter with the control

system

Topics covered in this chapter:

• Configure Channel B

• Configure the mA output

• Configure the discrete output

• Configure an enhanced event

• Configure HART/Bell 202 communications

• Configure Modbus communications

• Configure Digital Communications Fault Action

6.1 Configure Channel B

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

ProLink III Device Tools > Configuration > I/O > Channels

Field Communicator Configure > Manual Setup > Inputs/Outputs > Channels > Channel B

Overview

Depending on your device, you can configure Channel B to operate as either an mA output
or a discrete output.

Restriction

You cannot configure Channel B on the FDM TPS device. On this device, Channel B always operates
as a TPS output.

Prerequisites

The configuration of Channel B must match the wiring. See the installation manual for your
device.

To avoid causing process errors:

• Configure Channel B before configuring the mA output or discrete output.

• Before changing the channel configuration, ensure that all control loops affected by

the channel are under manual control.

Procedure

Set Channel B as desired.

Configuration and Use Manual 77

Integrate the meter with the control system

Option Description

mA output Channel B will operate as the secondary mA output.

Discrete output Channel B will operate as a discrete output.

6.2 Configure the mA output

The mA output is used to report the configured process variable. The mA output
parameters control how the process variable is reported.

The FDM mA device has two mA outputs: Channel A and Channel B. Both outputs are fully
configurable.

The FDM DO device has one mA output: Channel A. The output is fully configurable.

The FDM TPS device has one mA output: Channel A. The output is fully configurable.

Important

Whenever you change an mA output parameter, verify all other mA output parameters before
returning the meter to service. In some situations, the transmitter automatically loads a set of stored
values, and these values may not be appropriate for your application.

• Configure mA Output Process Variable (Section 6.2.1)

• Configure Lower Range Value (LRV) and Upper Range Value (URV) (Section 6.2.2)

• Configure Added Damping (Section 6.2.3)

• Configure mA Output Fault Action and mA Output Fault Level (Section 6.2.4)

6.2.1 Configure mA Output Process Variable

Display OFF-LINE MAINT > OFF-LINE CONFG > IO > CONFIG MAO 1 > AO 1 SRC

OFF-LINE MAINT > OFF-LINE CONFG > IO > CH B > MAO 2 > CONFIG MAO 2 > AO 2 SRC

ProLink III Device Tools > Configuration > I/O > Outputs > mA Output > mA Output 1 > Source

Device Tools > Configuration > I/O > Outputs > mA Output > mA Output 2 > Source

Field Communicator Configure > Manual Setup > Inputs/Outputs > mA Output 1 > Primary Variable

Configure > Manual Setup > Inputs/Outputs > mA Output 2 > Secondary Variable

Overview

Use mA Output Process Variable to select the variable that is reported over the mA output.

Prerequisites

If you are using the HART variables, be aware that changing the configuration of mA Output
Process Variable will change the configuration of the HART Primary Variable (PV) and/or the

HART Secondary Variable (SV).

78 Micro Motion® Fork Density Meters (FDM)

Integrate the meter with the control system

Procedure

Set mA Output Process Variable as desired.

Default settings are shown in the following table.

Default settings for mA Output Process VariableTable 6-1:

Default process variable assign-

Device Channel mA output

FDM mA Channel A Primary mA output Density

Channel B Secondary mA output Temperature

FDM DO Channel A Primary mA output Density

FDM TPS Channel A Primary mA output Temperature

ment

Postrequisites

If you changed the setting of mA Output Process Variable, verify the settings of Lower Range
Value (LRV) and Upper Range Value (URV).

Options for mA Output Process Variable

The transmitter provides a basic set of options for mA Output Process Variable, plus several
application-specific options. Different communications tools may use different labels for
the options.

Options for mA Output Process VariableTable 6-2:

Label

Process variable

Standard

Line Density DENS Line Density Density

Line Temperature TEMP Line Temperature Temperature

Line Temperature (External) EXT T Line Temperature (External

Line Pressure (External) EXT P Line Pressure (External or

Drive Gain DGAIN Drive Gain Drive Gain

Sensor Time Period TP B Sensor Time Period Sensor Time Period

User-Defined Calculation
Output

Volume Flow Rate (External) MAG V Volume Flow Rate (External) Volume from Mag/Vortex

Mass Flow Rate (Calculated) MAG M Mass Flow Rate (Calculated) Calculated Mass Flow from

Display ProLink III Field Communicator

External Temperature

or Fixed)

External Pressure

Fixed)

UCALC User-Defined Calculation

Output

User-Defined Calculation
Output

Meter

Mag Meter Input

Configuration and Use Manual 79

Integrate the meter with the control system

Options for mA Output Process Variable (continued)Table 6-2:

Label

Process variable

API referral

Referred Density (API) RDENS Referred Density (API) Density at Reference (API)

Concentration measurement

Specific Gravity SG Specific Gravity Specific Gravity (CM)

Concentration CONC Concentration Concentration (CM)

Referred Density (Concen­tration)

Net Mass Flow Rate NET M Net Mass Flow Rate Net Mass Flow Rate (CM)

Net Volume Flow Rate NET V Net Volume Flow Rate Net Volume Flow Rate (CM)

Display ProLink III Field Communicator

RDENS Referred Density (Concen-

tration)

Density at Reference (CM)

6.2.2 Configure Lower Range Value (LRV) and Upper Range Value
(URV)

Display OFF-LINE MAINT > OFF-LINE CONFG > IO > CONFIG MAO 1 > 4 mA

OFF-LINE MAINT > OFF-LINE CONFG > IO > CONFIG MAO 1 > 20 mA

OFF-LINE MAINT > OFF-LINE CONFG > IO > CH B > MAO 2 > CONFIG MAO 2 > 4 mA

OFF-LINE MAINT > OFF-LINE CONFG > IO > CH B > MAO 2 > CONFIG MAO 2 > 20 mA

ProLink III Device Tools > Configuration > I/O > Outputs > mA Output > mA Output 1 > Lower Range Value

Device Tools > Configuration > I/O > Outputs > mA Output > mA Output 1 > Upper Range Vaue

Device Tools > Configuration > I/O > Outputs > mA Output > mA Output 2 > Lower Range Value

Device Tools > Configuration > I/O > Outputs > mA Output > mA Output 2 > Upper Range Vaue

Field Communicator Configure > Manual Setup > Inputs/Outputs > mA Output 1 > mA Output Settings > PV LRV

Configure > Manual Setup > Inputs/Outputs > mA Output 1 > mA Output Settings > PV URV

Configure > Manual Setup > Inputs/Outputs > mA Output 2 > mA Output Settings > SV LRV

Configure > Manual Setup > Inputs/Outputs > mA Output 2 > mA Output Settings > SV URV

Overview

The Lower Range Value (LRV) and Upper Range Value (URV) are used to scale the mA output,
that is, to define the relationship between mA Output Process Variable and the mA output
level.

Prerequisites

Ensure that mA Output Process Variable is set to the desired process variable. Each process
variable has its own set of LRV and URV values. When you change the values of LRV and
URV, you are configuring values for the currently assigned mA output process variable.

80 Micro Motion® Fork Density Meters (FDM)

Integrate the meter with the control system

Ensure that the measurement unit for the configured process variable has been set as
desired.

Procedure

Set LRV and URV as desired.

• LRV is the value of mA Output Process Variable represented by an output of 4 mA. The

default value for LRV depends on the setting of mA Output Process Variable. Enter LRV in
the measurement units that are configured for mA Output Process Variable.

• URV is the value of mA Output Process Variable represented by an output of 20 mA. The

default value for URV depends on the setting of mA Output Process Variable. Enter URV in
the measurement units that are configured for mA Output Process Variable.

Tip

For best performance:

• Set LRV ≥ LSL (lower sensor limit).

• Set URV ≤ USL (upper sensor limit).

• Set these values so that the difference between URV and LRV is ≥ Min Span (minimum span).

Defining URV and LRV within the recommended values for Min Span, LSL, and USL ensures that the
resolution of the mA output signal is within the range of the bit precision of the D/A converter.

Note

You can set URV below LRV. For example, you can set URV to 50 and LRV to 100.

The mA output uses a range of 4–20 mA to represent mA Output Process Variable. Between
LRV and URV, the mA output is linear with the process variable. If the process variable
drops below LRV or rises above URV, the transmitter posts an output saturation alert.

6.2.3 Configure Added Damping

Display Not available

ProLink III Device Tools > Configuration > I/O > Outputs > mA Output > mA Output 1 > Added Damping

Device Tools > Configuration > I/O > Outputs > mA Output > mA Output 2 > Added Damping

Field Communicator Configure > Manual Setup > Inputs/Outputs > mA Output 1 > mA Output Settings > PV Added Damping

Configure > Manual Setup > Inputs/Outputs > mA Output 2 > mA Output Settings > SV Added Damping

Overview

Added Damping controls the amount of damping that will be applied to the mA output.

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.

Configuration and Use Manual 81

Integrate the meter with the control system

Added Damping affects the reporting of mA Output Process Variable through the mA output
only. It does not affect the reporting of that process variable via any other method (e.g., a
frequency output or digital communications), or the value of the process variable used in
calculations.

Note

Added Damping is not applied if the mA output is fixed (for example, during loop testing) or if the mA
output is reporting a fault. Added Damping is applied while sensor simulation is active.

Procedure

Set Added Damping to the desired value.

The default value is 0.0 seconds. The range is 0.0 to 440 seconds.

When you specify a value for Added Damping, the transmitter automatically rounds the value
down to the nearest valid value.

Interaction between mA Output Damping and process variable damping

When mA Output Process Variable is set to density or temperature, Added Damping interacts
with Density Damping or Temperature Damping.

Example: Damping interaction

Configuration:

• mA Output Process Variable = Density

• Density Damping = 1 second

• Added Damping = 2 seconds

Result: A change in density will be reflected in the mA output over a time period that is
greater than 3 seconds. The exact time period is calculated by the transmitter according to
internal algorithms which are not configurable.

Related information

Interaction between Density Damping and Added Damping

6.2.4 Configure mA Output Fault Action and mA Output Fault Level

Display Not available

ProLink III Device Tools > Configuration > I/O > Outputs > mA Output > mA Output 1 > Fault Action

Device Tools > Configuration > I/O > Outputs > mA Output > mA Output 2 > Fault Action

Field Communicator Configure > Manual Setup > Inputs/Outputs > mA Output 1 > mAO1 Fault Settings > MAO1 Fault Action

Configure > Manual Setup > Inputs/Outputs > mA Output 2 > MAO2 Fault Settings > MAO2 Fault Action

82 Micro Motion® Fork Density Meters (FDM)

Integrate the meter with the control system

Overview

mA Output Fault Action controls the behavior of the mA output if the transmitter encounters
an internal fault condition.

Note

For some faults only: If Fault Timeout is set to a non-zero value, the transmitter will not implement the
fault action until the timeout has elapsed.

Procedure

1. Set mA Output Fault Action to the desired value.

The default setting is Downscale.

Restriction

If Digital Communications Fault Action is set to NAN (not a number), you cannot set mA Output Fault
Action to None. If you try to do this, the device will not accept the configuration.

2. If you set mA Output Fault Action to Upscale or Downscale, set mA Output Fault Level as

desired.

Postrequisites

CAUTION!

If you set mA Output Fault Action to None, be sure to set Digital Communications Fault Action to None. If you
do not, the output will not report actual process data, and this may result in measurement
errors or unintended consequences for your process.

Options for mA Output Fault Action and mA Output Fault Level

Options for mA Output Fault Action and mA Output Fault LevelTable 6-3:

Option mA output behavior mA Output Fault Level

Upscale Goes to the configured fault level Default: 21.5 mA

Range: 21.0 to 21.5 mA

Downscale (default) Goes to the configured fault level Default: 3.2 mA

Range: 3.2 to 3.6 mA

Internal Zero Goes to the mA output level associated

with a process variable value of 0 (zero),
as determined by Lower Range Value and

Upper Range Value settings

None Tracks data for the assigned process vari-

able; no fault action

Not applicable

Not applicable

Configuration and Use Manual 83

Integrate the meter with the control system

6.3 Configure the discrete output

The discrete output is used to report specific meter or process conditions. The discrete
output parameters control which condition is reported and how it is reported. Depending
on your purchase option, your transmitter may have one discrete output or no discrete
outputs.

Important

Whenever you change a discrete output parameter, verify all other discrete output parameters
before returning the meter to service. In some situations, the transmitter automatically loads a set of
stored values, and these values may not be appropriate for your application.

• Configure Discrete Output Source (Section 6.3.1)

• Configure Discrete Output Polarity (Section 6.3.2)

• Configure Discrete Output Fault Action (Section 6.3.3)

6.3.1 Configure Discrete Output Source

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

ProLink III Device Tools > Configuration > I/O > Outputs > Discrete Output

Field Communicator Configure > Manual Setup > Inputs/Outputs > Discrete Output > DO Source

Overview

Discrete Output Source controls which device condition or process condition is reported via
the discrete output.

Procedure

Set Discrete Output Source to the desired option.

The default setting for Discrete Output Source is Fault.

Options for Discrete Output Source

Options for Discrete Output SourceTable 6-4:

Label

Option

Enhanced Event 1–5 Enhanced Event 1

Calibration in Progress Calibration in Progress Calibration in Progress ON Site-specific

ProLink III Field Communicator

Enhanced Event 1

Enhanced Event 2

Enhanced Event 3

Enhanced Event 4

Enhanced Event 5

Enhanced Event 2

Enhanced Event 3

Enhanced Event 4

Enhanced Event 5

State

ON Site-specific

OFF 0 V

Discrete output volt­age

84 Micro Motion® Fork Density Meters (FDM)

Integrate the meter with the control system

Options for Discrete Output Source (continued)Table 6-4:

Label

Option

Fault (default) Fault Indicator Fault ON Site-specific

Important

This table assumes that Discrete Output Polarity is set to Active High. If Discrete Output Polarity is set to Active
Low, reverse the voltage values.

State

OFF 0 V

OFF 0 V

Discrete output volt­ageProLink III Field Communicator

6.3.2 Configure Discrete Output Polarity

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

ProLink III Device Tools > Configuration > I/O > Outputs > Discrete Output

Field Communicator Configure > Manual Setup > Inputs/Outputs > Discrete Output > DO Polarity

Overview

Discrete outputs have two states: ON (active) and OFF (inactive). Two different voltage
levels are used to represent these states. Discrete Output Polarity controls which voltage level
represents which state.

Procedure

Set Discrete Output Polarity as desired.

The default setting is Active High.

Options for Discrete Output Polarity

Options for Discrete Output PolarityTable 6-5:

Polarity Description

Active High • When asserted (condition tied to DO is true), the cir-

cuit draws as much current as it can, up to a maximum
of 10 mA.

• When not asserted (condition tied to DO is false), the

circuit draws less than 1 mA.

Configuration and Use Manual 85

Integrate the meter with the control system

Options for Discrete Output Polarity (continued)Table 6-5:

Polarity Description

Active Low • When asserted (condition tied to DO is true), the cir-

cuit draws less than 1 mA.

• When not asserted (condition tied to DO is false), the

circuit draws as much current as it can, up to a maxi­mum of 10 mA.

6.3.3 Configure Discrete Output Fault Action

Display Not available

ProLink III Device Tools > Configuration > Fault Processing

Field Communicator Configure > Manual Setup > Inputs/Outputs > Discrete Output > DO Fault Action

Overview

Discrete Output Fault Action controls the behavior of the discrete output if the transmitter
encounters an internal fault condition.

Note

For some faults only: If Fault Timeout is set to a non-zero value, the transmitter will not implement the
fault action until the timeout has elapsed.

CAUTION!

Do not use Discrete Output Fault Action as a fault indicator. If you do, you may not be able to
distinguish a fault condition from a normal operating condition. If you want to use the discrete
output as a fault indicator, set Discrete Output Source to Fault and set Discrete Output Fault Action to
None.

Procedure

Set Discrete Output Fault Action as desired.

The default setting is None.

86 Micro Motion® Fork Density Meters (FDM)

Options for Discrete Output Fault Action

Options for Discrete Output Fault ActionTable 6-6:

Discrete output behavior

Integrate the meter with the control system

Label

Upscale • Fault: discrete output is ON

Downscale • Fault: discrete output is OFF

None (default) Discrete output is controlled by its assignment

Polarity=Active High Polarity=Active Low

(site-specific voltage)

• No fault: discrete output is con-

trolled by its assignment

(0 V)

• No fault: discrete output is con-

trolled by its assignment

Fault indication with the discrete output

To indicate faults via the discrete output, set Discrete Output Source to Fault. Then, if a fault
occurs, the discrete output is always ON and the setting of Discrete Output Fault Action is
ignored.

6.4 Configure an enhanced event

Display Not available

ProLink III Device Tools > Configuration > Events > Enhanced Events

Field Communicator Configure > Alert Setup > Enhanced Events

• Fault: discrete output is OFF

(0 V)

• No fault: discrete output is con-

trolled by its assignment

• Fault: discrete output is ON

(site-specific voltage)

• No fault: discrete output is con-

trolled by its assignment

Overview

An enhanced event is used to provide notification of process changes. An enhanced event
occurs (is ON) if the real-time value of a user-specified process variable moves above (HI)
or below (LO) a user-defined setpoint, or in range (IN) or out of range (OUT) with respect
to two user-defined setpoints. You can define up to five enhanced events.

Procedure

1. Select the event that you want to configure.

2. Specify Event Type.

Configuration and Use Manual 87

Integrate the meter with the control system

Options Description

HI x > A

LO x < A

IN A ≤ x ≤ B

OUT x ≤ A or x ≥ B

3. Assign a process variable to the event.

4. Set values for the required setpoints.

The event occurs when the value of the assigned process variable (x) is
greater than the setpoint (Setpoint A), endpoint not included.

The event occurs when the value of the assigned process variable (x) is
less than the setpoint (Setpoint A), endpoint not included.

The event occurs when the value of the assigned process variable (x) is in
range, that is, between Setpoint A and Setpoint B, endpoints included.

The event occurs when the value of the assigned process variable (x) is
out of range, that is, less than Setpoint A or greater than Setpoint B, end-
points included.

• For HI and LO events, set Setpoint A.

• For IN and OUT events, set Setpoint A and Setpoint B.

5. (Optional) Configure a discrete output to switch states in response to the event
status.

Related information

Configure Discrete Output Source

6.5 Configure HART/Bell 202 communications

HART/Bell 202 communications parameters support HART communications with the
transmitter's primary mA terminals over a HART/Bell 202 network.

• Configure basic HART parameters (Section 6.5.1)

• Configure HART variables (PV, SV, TV, QV) (Section 6.5.2)

• Configure burst communications (Section 6.5.3)

6.5.1 Configure basic HART parameters

Display OFF-LINE MAINT > OFF-LINE CONFG > HART

ProLink III Device Tools > Configuration > Meter Information

Device Tools > Configuration > Communications > Communications (HART)

Field Communicator Configure > Manual Setup > HART > Communications

88 Micro Motion® Fork Density Meters (FDM)

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Overview

Basic HART parameters include the HART address, HART tags, and the operation of the
primary mA output.

Restrictions

• Your device supports HART 7. If you are using HART 5, HART Long Tag is not available.

• HART Tag, HART Long Tag, and mA Output Action are not configurable from the display.

Procedure

1. Set HART Address to a unique value on your network.

Valid address values are between 0 and 15. The default address (0) is typically used
unless you are in a multidrop environment.

Tip

Devices using HART protocol to communicate with the transmitter may use either HART
Address or HART Tag (Software Tag) to identify the transmitter. Configure either or both, as

required by your other HART devices.

2. Set HART Long Tag to a unique value on your network.

3. Ensure that mA Output Action is configured appropriately.

Options Description

Enabled (Live) The primary mA output reports process data as configured. This is

the appropriate setting for most applications.

Disabled (Fixed) The primary mA output is fixed at 4 mA and does not report process

data.

Important

If you use ProLink II or ProLink III to set HART Address to 0, the program automatically enables
mA Output Action. If you use ProLink II or ProLink III to set HART Address to any other value, the

program automatically disables mA Output Action. This is designed to make it easier to
configure the transmitter for legacy behavior. Always verify mA Output Action after setting HART
Address.

6.5.2 Configure HART variables (PV, SV, TV, QV)

Display Not available

ProLink III Device Tools > Configuration > Communications > Communications (HART)

Field Communicator Configure > Manual Setup > Inputs/Outputs > Variable Mapping

Configuration and Use Manual 89

Integrate the meter with the control system

Overview

The HART variables are a set of four variables predefined for HART use. The HART variables
include the Primary Variable (PV), Secondary Variable (SV), Tertiary Variable (TV), and
Quaternary Variable (QV). You can assign specific process variables to the HART variables,
and then use standard HART methods to read or broadcast the assigned process data.

Tip

The Tertiary Variable and Quaternary Variable are also called the Third Variable (TV) and Fourth
Variable (FV).

Restriction

On some devices, the PV is fixed to a specific process variable and cannot be changed.

Related information

Set up the API referral application

Options for HART variables

Options for HART variablesTable 6-7:

Primary Varia-

Process variable

Standard

Line Density ✓ ✓ ✓ ✓

Line Temperature ✓ ✓ ✓ ✓

Line Temperature (External) ✓ ✓ ✓ ✓

Line Pressure (External) ✓ ✓ ✓ ✓

Drive Gain ✓ ✓ ✓ ✓

Sensor Time Period ✓ ✓ ✓ ✓

Volume Flow Rate (External) ✓ ✓ ✓ ✓

Mass Flow Rate (Calculated) ✓ ✓ ✓ ✓

User-Defined Calculation Output ✓ ✓ ✓ ✓

Board Temperature ✓ ✓

Input Voltage ✓ ✓

API referral

Referred Density (API) ✓ ✓ ✓ ✓

Concentration measurement

Specific Gravity ✓ ✓ ✓ ✓

Concentration ✓ ✓ ✓ ✓

Referred Density (Concentration) ✓ ✓ ✓ ✓

ble (PV)

Secondary
Variable (SV)

Third Variable
(TV)

Fourth Varia­ble (QV )

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Options for HART variables (continued)Table 6-7:

Primary Varia-

Process variable

Net Mass Flow ✓ ✓ ✓ ✓

Net Volume Flow ✓ ✓ ✓ ✓

ble (PV)

Secondary
Variable (SV)

Third Variable
(TV)

Fourth Varia­ble (QV )

Interaction of HART variables and transmitter outputs

The HART variables are automatically reported through specific transmitter outputs. They
may also be reported through HART burst mode, if enabled on your transmitter.

Restriction

One some devices, the PV and the primary mA output are fixed to a specific process variable and
cannot be changed.

HART variables and transmitter outputsTable 6-8:

HART variable Reported via Comments

Primary Variable (PV) Primary mA output If one assignment is changed, the other is changed auto-

matically, and vice versa.

Secondary Variable (SV) Secondary mA output, if

present on your transmitter

Tertiary Variable (TV) Not associated with an out-

put

Quaternary Variable (QV) Not associated with an out-

put

If you have a secondary mA output: If one assignment is
changed, the other is changed automatically.

If you do not have a secondary mA output: The SV must be
configured directly, and the value of the SV is available on­ly via digital communications.

The TV must be configured directly, and the value of the
TV is available only via digital communications.

The QV must be configured directly, and the value of the
QV is available only via digital communications.

6.5.3 Configure burst communications

Burst mode is a mode of communication during which the transmitter regularly broadcasts
HART digital information to the network via the primary mA output.

Restriction

Burst communications, including trigger mode and event notification, are not available on HART/
RS-485. These features are supported only on HART/Bell 202.

• Configure HART burst messages

• Configure HART trigger mode

• Configure HART event notification

Configuration and Use Manual 91

Integrate the meter with the control system

Configure HART burst messages

Display Not available

ProLink III Device Tools > Configuration > Communications > Communications (HART)

Field Communicator Configure > Manual Setup > HART > Burst Mode

Overview

Burst messages contain information on process variables or transmitter status. You can
configure up to three burst messages. Each message can contain different information.
Burst messages also provide the mechanism for trigger mode and event notification.

Restriction

If you are using a HART 5 host, only one burst message is supported.

Procedure

1. Navigate to the burst message you want to configure.

2. Enable the burst message.

3. Set Burst Option to the desired content.

Options for burst message contentsTable 6-9:

HART
command

1 Source (Primary Variable) Primary Variable The transmitter sends the primary variable (PV) in

2 Primary Variable (Percent

Range/Current)

3 Process Variables/Current Process Vars/Current The transmitter sends the PV’s actual milliamp read-

9 Read Device Variables with

Status

33 Transmitter Variables Field Device Vars The transmitter sends four user-specified process

48 Read Additional Transmitter

Status

Label

DescriptionProLink III Field Communicator

the configured measurement units in each burst
message (e.g., 14.0 g/sec, 13.5 g/sec, 12.0 g/sec).

Pct Range/Current The transmitter sends the PV’s actual mA level and

the PV’s percent of range in each burst message
(e.g.,11.0 mA 25%).

ing and the PV, SV, TV, and QV values in measure­ment units in each burst message (e.g.,11.8 mA,
50 g/sec, 23 °C, 50 g/sec, 0.0023 g/cm3).

Device Variables with Status The transmitter sends up to eight user-specified

process variables in each burst message.

variables in each burst message.

Read Additional Device Sta­tus

The transmitter sends expanded device status infor­mation in each burst message.

4. Depending on your choice, select the four or eight user-specified variables for the
burst message, or set the HART variables as desired.

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Important

If you change the HART Primary Variable (PV) or Secondary Variable (SV), the process
variables assigned to the primary mA output and the secondary mA output (if applicable) are
automatically changed to match. The PV cannot be changed on devices with fixed mA output
assignments.

Configure HART trigger mode

Display Not available

ProLink III Device Tools > Configuration > Communications > Communications (HART)

Field Communicator Configure > Manual Setup > HART > Burst Mode > Burst Message x > Configure Update Rate

Overview

Trigger mode uses the burst message mechanism to indicate that a process variable has
changed. When trigger mode is implemented, the bursting interval (HART update rate)
changes if Primary Variable or Burst Variable 0 moves above or below the user-specified
trigger level. You can set up a different trigger on each burst message.

Restriction

This feature is available only with a HART 7 host.

Prerequisites

Before you can configure trigger mode, the corresponding HART burst message must be
enabled.

Procedure

1. Select the burst message for which you will set up trigger mode.

2. Set Trigger Mode to the type of trigger you want to use.

Option Description

Continuous The burst message is sent at Default Update Rate. The burst interval is not affected

by changes in process variables.

Falling • When the specified process variable is above Trigger Level, the burst message

is sent at Default Update Rate.

• When the specified process variable is below Trigger Level, the burst message

is sent at Update Rate.

Rising • When the specified process variable is below Trigger Level, the burst message

is sent at Default Update Rate.

• When the specified process variable is above Trigger Level, the burst message

is sent at Update Rate.

Configuration and Use Manual 93

Integrate the meter with the control system

Option Description

Windowed This option is used to communicate that the process variable is changing rapid-

On Change • If any value in the burst message changes, the burst message is sent at Up-

3. Ensure that Primary Variable or Burst Variable 0 is set to the variable that will activate the
trigger. If it is not, reconfigure the burst message contents.

4. Set Trigger Level to the value of the process variable at which the trigger will be
activated.

5. Set Default Update Rate to the burst interval to be used when the trigger is not active.

6. Set Update Rate to the burst interval to be used when the trigger is active.

ly. Trigger Level defines a deadband around the most recently broadcast value.

• If the process variable stays within this deadband, the burst message is sent

at Default Update Rate.

• If the process variable moves outside this deadband in either direction, the

burst message is sent at Update Rate.

date Rate.

• If no values change, the burst message is sent at Default Update Rate.

Configure HART event notification

Display Not available

ProLink III Device Tools > Configuration > Communications > Communications (HART) > Event Notification

Field Communicator Configure > Manual Setup > HART > Event Notification

Overview

Event notification uses the burst message mechanism to indicate that an alert has occurred.
When event notification is enabled and one or more of the selected alerts occurs, each
active burst message will broadcast HART Command 119 until the condition is
acknowledged by a HART master.

Tip

Event notification affects only HART burst messages. Whether an alert is selected for event
notification or not, alert severity, alert status (active or inactive), fault timeout, and alert
acknowledgment operate as normal.

Restriction

This feature is available only with a HART 7 host.

Prerequisites

If you are using the Field Communicator, you must enable a burst message before you can
configure event notification.

94 Micro Motion® Fork Density Meters (FDM)