Micro Motion Configuration and Use Manual: Micro Motion LNG-Series Meters Configuration and Use Manual Manuals & Guides

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Micro Motion® LNG Series Meters

Configuration and Use Manual

MMI-20032809, Rev AA

February 2017

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: flow.support@emerson.com

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

Telephone:

North and South America Europe and Middle East Asia Pacific

United States 800-522-6277 U.K. 0870 240 1978 Australia 800 158 727

Canada +1 303-527-5200 The Netherlands +31 (0) 704 136 666 New Zealand 099 128 804

Mexico +41 (0) 41 7686 111 France 0800 917 901 India 800 440 1468

Argentina +54 11 4837 7000 Germany 0800 182 5347 Pakistan 888 550 2682

Brazil +55 15 3413 8000 Italy 8008 77334 China +86 21 2892 9000

Venezuela +58 26 1731 3446 Central & Eastern +41 (0) 41 7686 111 Japan +81 3 5769 6803

Russia/CIS +7 495 981 9811 South Korea +82 2 3438 4600

Egypt 0800 000 0015 Singapore +65 6 777 8211

Oman 800 70101 Thailand 001 800 441 6426

Qatar 431 0044 Malaysia 800 814 008

Kuwait 663 299 01

South Africa 800 991 390

Saudi Arabia 800 844 9564

UAE 800 0444 0684

Contents

Part I Getting Started

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

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

1.2 Meter model codes ......................................................................................................................3

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

1.4 Additional documentation .......................................................................................................... 4

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

2.1 Power up the meter .....................................................................................................................7

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

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

2.4 Characterize the flowmeter (if required) ......................................................................................8

2.4.1 Sensor tags ................................................................................................................... 9

2.4.2 Density calibration parameters (D1, D2, K1, K2, FD, TC) .................................................. 9

2.5 Verify mass flow measurement ....................................................................................................9

2.6 Verify the zero ............................................................................................................................. 9

2.6.1 Verify the zero using ProLink III ...................................................................................10

2.6.2 Terminology used with zero verification and zero calibration ......................................11

Part II Configuration and commissioning

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

3.1 Default values and ranges ..........................................................................................................15

3.2 Disable write-protection on the transmitter configuration ........................................................ 15

3.3 Restore the factory configuration .............................................................................................. 15

Chapter 4 Configure process measurement ..................................................................................17

4.1 Configure mass flow measurement ........................................................................................... 17

4.1.1 Configure Mass Flow Measurement Unit ...........................................................................17

4.1.2 Configure Flow Damping ...............................................................................................19

4.1.3 Configure Mass Flow Cutoff ...........................................................................................20

4.2 Configure volume flow measurement for liquid applications ..................................................... 21

4.2.1 Configure Volume Flow Type for liquid applications ........................................................21

4.2.2 Configure Volume Flow Measurement Unit for liquid applications ......................................21

4.2.3 Configure Volume Flow Cutoff ........................................................................................24

4.3 Configure gas standard volume (GSV) flow measurement .........................................................24

4.3.1 Configure Volume Flow Type for gas applications ........................................................... 25

4.3.2 Configure Standard Gas Density .....................................................................................25

4.3.3 Configure Gas Standard Volume Flow Measurement Unit .................................................... 26

4.3.4 Configure Gas Standard Volume Flow Cutoff .....................................................................28

4.4 Configure flow direction ........................................................................................................... 28

4.4.1 Options for Flow Direction .............................................................................................29

4.5 Configure density measurement .............................................................................................. 30

4.5.1 Configure Density Measurement Unit ...............................................................................30

Configuration and Use Manual i

Contents

4.5.2 Configure two-phase flow parameters ........................................................................31

4.5.3 Configure density damping ........................................................................................33

4.5.4 Configure Density Cutoff ............................................................................................... 34

4.6 Configure temperature measurement .......................................................................................34

4.6.1 Configure Temperature Measurement Unit ........................................................................34

4.6.2 Configure Temperature Damping .................................................................................... 35

Chapter 5 Configure device options and preferences ....................................................................37

5.1 Configure response time parameters ........................................................................................ 37

5.1.1 Configure Calculation Speed (Response Time) .................................................................. 37

5.2 Configure alert handling ............................................................................................................38

5.2.1 Configure Fault Timeout ................................................................................................38

5.2.2 Configure Status Alert Severity .......................................................................................38

5.3 Configure informational parameters ......................................................................................... 40

5.3.1 Configure the sensor index ......................................................................................... 40

5.3.2 Configure the RTD cable length .................................................................................. 41

5.3.3 Configure Sensor Serial Number .....................................................................................41

5.3.4 Configure Sensor Material ............................................................................................. 41

5.3.5 Configure Sensor Liner Material ......................................................................................42

5.3.6 Configure Sensor Flange Type ....................................................................................... 42

5.3.7 Configure Descriptor .................................................................................................... 43

5.3.8 Configure Message ......................................................................................................43

5.3.9 Configure Date ............................................................................................................43

Chapter 6 Integrate the meter with the control system ................................................................45

6.1 Configure events ....................................................................................................................... 45

6.1.1 Configure an enhanced event ..................................................................................... 45

6.2 Configure digital communications ............................................................................................ 46

6.2.1 Configure Modbus/RS-485 communications .............................................................. 47

6.2.2 Configure RS-485 terminals ........................................................................................ 48

6.2.3 Configure Digital Communications Fault Action .................................................................. 49

Chapter 7 Complete the configuration ......................................................................................... 51

7.1 Back up transmitter configuration ............................................................................................. 51

7.2 Enable write-protection on the transmitter configuration ......................................................... 51

Part III Operations, maintenance, and troubleshooting

Chapter 8 Transmitter operation ................................................................................................. 55

8.1 Custody transfer ........................................................................................................................55

8.2 Record the process variables ..................................................................................................... 55

8.3 View process variables ...............................................................................................................56

8.3.1 View process variables and other data using ProLink III ...............................................56

8.4 View transmitter status using the status LED ............................................................................. 56

8.5 View and acknowledge status alerts .......................................................................................... 57

8.5.1 View and acknowledge alerts using ProLink III ............................................................57

8.5.2 Alert data in transmitter memory ............................................................................... 58

8.6 Read totalizer and inventory values ........................................................................................... 59

8.7 Start and stop totalizers and inventories ....................................................................................59

8.8 Reset totalizers ..........................................................................................................................60

8.9 Reset inventories .......................................................................................................................60

ii Micro Motion® LNG Series Meters

Contents

Chapter 9 Measurement support ................................................................................................. 61

9.1 Options for measurement support ............................................................................................ 61

9.2 Zero the meter .......................................................................................................................... 61

9.2.1 Zero the meter using ProLink III ..................................................................................61

9.2.2 Record the zeros .........................................................................................................63

9.3 Validate the meter .....................................................................................................................63

9.3.1 Alternate method for calculating the meter factor for volume flow .............................65

9.4 Perform a (standard) D1 and D2 density calibration ...................................................................65

9.4.1 Perform a D1 and D2 density calibration using ProLink III ........................................... 66

Chapter 10 Troubleshooting .......................................................................................................... 69

10.1 Status LED states ....................................................................................................................... 69

10.2 Status alerts, causes, and recommendations ............................................................................. 70

10.3 Flow measurement problems ................................................................................................... 75

10.4 Density measurement problems ............................................................................................... 77

10.5 Temperature measurement problems .......................................................................................78

10.6 Check power supply wiring ........................................................................................................78

10.7 Check grounding .......................................................................................................................79

10.8 Check for radio frequency interference (RFI) ..............................................................................79

10.9 Check for two-phase flow (slug flow) ......................................................................................... 80

10.10 Check the drive gain .................................................................................................................. 80

10.10.1 Collect drive gain data ................................................................................................ 81

10.11 Check the pickoff voltage .......................................................................................................... 81

10.11.1 Collect pickoff voltage data ........................................................................................ 82

10.12 Check for internal electrical problems ....................................................................................... 82

10.12.1 Check the sensor coils .................................................................................................83

Appendices and reference

Appendix A Using ProLink III with the transmitter ...........................................................................85

A.1 Connect with ProLink III ............................................................................................................ 85

A.1.1 Connection types supported by ProLink III ..................................................................85

A.1.2 Connect with ProLink III to the service port ................................................................. 85

A.1.3 Connect with ProLink III to the RS-485 port ................................................................. 86

Appendix B Default values and ranges ............................................................................................ 89

B.1 Default values and ranges ..........................................................................................................89

Configuration and Use Manual iii

Contents

iv Micro Motion® LNG Series Meters

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® LNG Series Meters

1 Before you begin

Topics covered in this chapter:

About this manual

•

Meter model codes

•

Communications tools and protocols

•

Additional documentation

•

1.1 About this manual

This manual provides information to help you configure, commission, use, maintain, and troubleshoot the Micro Motion LNG Series meter.

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 applicable safety standards

Before you begin

1.2

Meter model codes

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

The transmitter model number has the following form: LNGM10S***N(P/Z)(D/I/N)***********

Model codes and device typesTable 1-1:

Model code Description I/O and communications

N Standard case • One dedicated service port/

P LNGS06S and LNGM10S

are paired

D With a dual core processor

Z Standalone sensor

I With enhanced core pro-

cessor for direct host connection with IS barrier

Modbus

• One dedicated RS-485 port/

Modbus

Configuration and Use Manual 3

Before you begin

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

Model code Description I/O and communications

N Spare sensor without elec-

tronics

1.3 Communications tools and protocols

You can use these communications tools and protocols to interface with the transmitter.

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

Communications tool Supported protocols Scope In this manual For more information

ProLink III • Modbus/RS-485

• Service port

Modbus host • Service port

• Modbus/RS-485

Complete configuration and commissioning

Basic user information. See Appendix A.

None.

User manual

• Installed with soft-

ware

• Micro Motion user

documentation CD

• www.micromo‐

tion.com

Modbus Interface Tool (MIT) — available at

www.micromotion.com

1.4 Additional documentation

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

Additional documentation and resourcesTable 1-3:

Topic Document

Transmitter installation

Product Data Sheet

Hazardous area installation

4 Micro Motion® LNG Series Meters

Micro Motion Liquified Natural Gas Dispenser Installation Manual

Micro Motion LNG Series Meters Product Data Sheet (PDS)

See the approval documentation shipped with the transmitter, or download the appropriate documentation from the Micro Motion web site at www.micromotion.com.

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

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

Before you begin

Configuration and Use Manual 5

Before you begin

6 Micro Motion® LNG Series Meters

2 Quick start

Topics covered in this chapter:

Power up the meter

•

Check meter status

•

Make a startup connection to the transmitter

•

Characterize the flowmeter (if required)

•

Verify mass flow measurement

•

Verify the zero

•

2.1 Power up the meter

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

1. Ensure that all device covers and seals are closed.

Quick start

2.2

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.

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

Postrequisites

Although the sensor is ready to measure 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 equalize for approximately 10 minutes.

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.

2. Connect to the transmitter and check for active alerts.

Configuration and Use Manual 7

Quick start

Related information

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

2.3 Make a startup connection to the transmitter

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

Communications tool Connection type to use Instructions

ProLink III Service Port Section A.1.2

RS-485 port Section A.1.3

2.4 Characterize the flowmeter (if required)

ProLink III Device Tools > Calibration Data

Overview

Characterizing the flowmeter adjusts your transmitter to match the unique traits of the sensor it is paired with. The characterization parameters (also called calibration parameters) describe the sensor’s sensitivity to flow, density, and temperature. Depending on your sensor type, different parameters are required. Values for your sensor are provided by Micro Motion on the sensor tag or the calibration certificate.

Tip

If your meter was ordered as a unit, it has already been characterized at the factory. However, you should still verify the characterization parameters.

Procedure

1. Specify Sensor Type.

• LNG-Series (LNGS06S, LNGM10S)

2. Set the flow characterization parameters. Be sure to include all decimal points.

• Set Flow Cal (Flow Calibration Factor).

3. Set the density characterization parameters.

• Set D1, D2, TC, K1, K2, and FD.

8 Micro Motion® LNG Series Meters

2.4.1 Sensor tags

Tag on sensorsFigure 2-1:

Quick start

2.4.2 Density calibration parameters (D1, D2, K1, K2, FD, TC)

Density calibration parameters are typically on the sensor tag and the calibration certificate.

2.5

2.6

Verify mass flow measurement

Check to see that the mass flow rate reported by the transmitter is accurate. You can use any available method.

Connect to the transmitter with ProLink III and read the value for Mass Flow Rate in the Process Variables panel.

Postrequisites

If the reported mass flow rate is not accurate:

• Check the characterization parameters.

• Review the troubleshooting suggestions for flow measurement issues.

Verify the zero

Verifying the zero helps you determine if the stored zero value is appropriate to your installation, or if a field zero can improve measurement accuracy.

Configuration and Use Manual 9

Quick start

The zero verification procedure analyzes the Live Zero value under conditions of zero flow, and compares it to the Zero Stability range for the sensor. If the average Live Zero value is within a reasonable range, the zero value stored in the transmitter is valid. Performing a field calibration will not improve measurement accuracy.

2.6.1 Verify the zero using ProLink III

Verifying the zero helps you determine if the stored zero value is appropriate to your installation, or if a field zero can improve measurement accuracy.

Important

In most cases, the factory zero is more accurate than the field zero. Do not zero the meter unless one of the following is true:

• The zero is required by site procedures.

• The stored zero value fails the zero verification procedure.

Prerequisites

ProLink III v3.5, or a later release

Important

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

Procedure

1. Prepare the meter:

a. Allow the meter to warm up for at least 20 minutes after applying power.

b. Run the process fluid through the sensor until the sensor temperature reaches

the normal process operating temperature.

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

upstream valve if available.

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

completely full of process fluid.

2. Choose Device Tools > Device Calibration > Zero Verification and Calibration > Verify Zero and wait until the procedure completes.

3. If the zero verification procedure fails:

a. Confirm that the sensor is completely blocked in, that flow has stopped, and that

the sensor is completely full of process fluid.

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

contain particles that can settle out.

c. Repeat the zero verification procedure.

d. If it fails again, zero the meter.

10 Micro Motion® LNG Series Meters

Quick start

Postrequisites

Restore normal flow through the sensor by opening the valves.

2.6.2 Terminology used with zero verification and zero calibration

Terminology used with zero verification and zero calibrationTable 2-1:

Term Definition

Zero In general, the offset required to synchronize the left pickoff and the right pickoff under

conditions of zero flow. Unit = microseconds.

Factory Zero The zero value obtained at the factory, under laboratory conditions.

Field Zero The zero value obtained by performing a zero calibration outside the factory.

Prior Zero The zero value stored in the transmitter at the time a field zero calibration is begun. May

be the factory zero or a previous field zero.

Manual Zero The zero value stored in the transmitter, typically obtained from a zero calibration proce-

dure. It may also be configured manually. Also called “mechanical zero” or “stored zero.”

Live Zero The real-time bidirectional mass flow rate with no flow damping or mass flow cutoff ap-

plied. An adaptive damping value is applied only when the mass flow rate changes dramatically over a very short interval. Unit = configured mass flow measurement unit.

Zero Stability A laboratory-derived value used to calculate the expected accuracy for a sensor. Under

laboratory conditions at zero flow, the average flow rate is expected to fall within the range defined by the Zero Stability value (0 ± Zero Stability). Each sensor size and model has a unique Zero Stability value. Statistically, 95% of all data points should fall within the range defined by the Zero Stability value.

Zero Calibration The procedure used to determine the zero value.

Zero Time The time period over which the Zero Calibration procedure is performed. Unit = seconds.

Field Verification Zero A 3-minute running average of the Live Zero value, calculated by the transmitter. Unit =

configured mass flow measurement unit.

Zero Verification A procedure used to evaluate the stored zero and determine whether or not a field zero

can improve measurement accuracy.

Configuration and Use Manual 11

Quick start

12 Micro Motion® LNG Series Meters

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 13

Configuration and commissioning

14 Micro Motion® LNG Series Meters

Introduction to configuration and commissioning

3 Introduction to configuration and

commissioning

Topics covered in this chapter:

Default values and ranges

•

Disable write‐protection on the transmitter configuration

•

Restore the factory configuration

•

3.1 Default values and ranges

See Default values and ranges to view the default values and ranges for the most commonly used parameters.

3.2 Disable write-protection on the transmitter configuration

ProLink III Device Tools > Configuration > Write-Protection

Overview

If the transmitter is write-protected, the configuration is locked and you must unlock it before you can change any configuration parameters. By default, the transmitter is not write-protected.

Tip

Write-protecting the transmitter prevents accidental changes to configuration. It does not prevent normal operational use. You can always disable write-protection, perform any required configuration changes, then re-enable write-protection.

3.3

Restore the factory configuration

ProLink III Device Tools > Configuration Transfer > Restore Factory Configuration

Overview

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

Configuration and Use Manual 15

Introduction to configuration and commissioning

Tip

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

16 Micro Motion® LNG Series Meters

Configure process measurement

4 Configure process measurement

Topics covered in this chapter:

Configure mass flow measurement

•

Configure volume flow measurement for liquid applications

•

Configure gas standard volume (GSV) flow measurement

•

Configure flow direction

•

Configure density measurement

•

Configure temperature measurement

•

4.1 Configure mass flow measurement

The mass flow measurement parameters control how mass flow is measured and reported.

The mass flow measurement parameters include:

Mass Flow Measurement Unit

•

Flow Damping

•

Mass Flow Cutoff

•

4.1.1

Configure Mass Flow Measurement Unit

ProLink III Device Tools > Configuration > Process Measurement > Flow

Overview

Mass Flow Measurement Unit specifies the unit of measure that will be used for the mass flow rate. The unit used for mass total and mass inventory is derived from this unit.

Procedure

Set Mass Flow Measurement Unit to the unit you want to use.

The default setting for Mass Flow Measurement Unit is g/sec (grams per second).

Options for Mass Flow Measurement Unit

The transmitter provides a standard set of measurement units for Mass Flow Measurement Unit, plus one user-defined special measurement unit. Different communications tools may

use different labels for the units.

Configuration and Use Manual 17

Configure process measurement

Unit description ProLink III label

Grams per second

Grams per minute

Grams per hour

Kilograms per second

Kilograms per minute

Kilograms per hour

Kilograms per day

Metric tons per minute

Metric tons per hour

Metric tons per day

Pounds per second

Pounds per minute

Pounds per hour

Pounds per day

Short tons (2000 pounds) per minute

Short tons (2000 pounds) per hour

Short tons (2000 pounds) per day

Long tons (2240 pounds) per hour

Long tons (2240 pounds) per day

Special unit

Options for Mass Flow Measurement Unit Table 4-1:

g/sec

g/min

g/hr

kg/sec

kg/min

kg/hr

kg/day

mTon/min

mTon/hr

mTon/day

lbs/sec

lbs/min

lbs/hr

lbs/day

sTon/min

sTon/hr

sTon/day

lTon/hr

lTon/day

special

Define a special measurement unit for mass flow

ProLink III

Overview

A special measurement unit is a user-defined unit of measure that allows you to report process data, totalizer data, and inventory 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 Base Mass Unit.

Base Mass Unit is the existing mass unit that the special unit will be based on.

2. Specify Base Time Unit.

18 Micro Motion® LNG Series Meters

Device Tools > Configuration > Process Measurement > Flow > Special Units

Configure process measurement

Base Time Unit is the existing time unit that the special unit will be based on.

3. Calculate Mass Flow Conversion Factor as follows:

a. x base units = y special units

b. Mass Flow Conversion Factor = x ÷ y

The original mass flow rate value is divided by this value.

4. Enter Mass Flow Conversion Factor.

5. Set Mass Flow Label to the name you want to use for the mass flow unit.

6. Set Mass Total Label to the name you want to use for the mass total and mass

inventory unit.

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

Example: Defining a special measurement unit for mass flow

You want to measure mass flow in ounces per second (oz/sec).

4.1.2

1. Set Base Mass Unit to Pounds (lb).

2. Set Base Time Unit to Seconds (sec).

3. Calculate Mass Flow Conversion Factor:

a. 1 lb/sec = 16 oz/sec

b. Mass Flow Conversion Factor = 1 ÷ 16 = 0.0625

4. Set Mass Flow Conversion Factor to 0.0625.

5. Set Mass Flow Label to oz/sec.

6. Set Mass Total Label to oz.

Configure Flow Damping

ProLink III Device Tools > Configuration > Process Measurement > Flow

Overview

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.

Procedure

Set Flow Damping to the value you want to use.

The default value is 0.64 seconds. The range is 0 to 60 seconds.

Configuration and Use Manual 19

Configure process measurement

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.

• The combination of a high damping value and rapid, large changes in flow rate can result in

increased measurement error.

• 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.

• For gas applications, Micro Motion recommends setting Flow Damping to 2.56 or higher.

The value you enter is automatically rounded down to the nearest valid value. Valid damping values are 0, 0.04, 0.08, 0.16, 0.32... 40.96.

Effect of Flow Damping on volume measurement

Flow Damping affects volume measurement for liquid volume data. Flow Damping also affects

volume measurement for gas standard volume data. The transmitter calculates volume data from the damped mass flow data.

4.1.3

Configure Mass Flow Cutoff

ProLink III Device Tools > Configuration > Process Measurement > Flow

Overview

Mass Flow Cutoff specifies the lowest mass flow rate that will be reported as measured. All mass flow rates below this cutoff will be reported as 0.

Procedure

Set Mass Flow Cutoff to the value you want to use.

The default value for Mass Flow Cutoff is 0.0 g/sec or a sensor-specific value set at the factory. The recommended value is 0.5% of the nominal flow rate of the attached sensor. See the sensor specifications. Do not leave Mass Flow Cutoff to 0.0 g/sec.

Effect of Mass Flow Cutoff on volume measurement

Mass Flow Cutoff does not affect volume measurement. Volume data is calculated from the

actual mass data rather than the reported value.

20 Micro Motion® LNG Series Meters

Configure process measurement

4.2 Configure volume flow measurement for liquid applications

The volume flow measurement parameters control how liquid volume flow is measured and reported.

The volume flow measurement parameters include:

Volume Flow Type

•

Volume Flow Measurement Unit

•

Volume Flow Cutoff

•

Restriction

You cannot implement both liquid volume flow and gas standard volume flow at the same time. You must choose one or the other.

4.2.1 Configure Volume Flow Type for liquid applications

4.2.2

ProLink III Device Tools > Configuration > Process Measurement > Flow

Overview

Volume Flow Type controls whether liquid or gas standard volume flow measurement will be used.

Restriction

If you are using the concentration measurement application, you must set Volume Flow Type to Liquid. Gas standard volume measurement is incompatible with the concentration measurement application.

Procedure

Set Volume Flow Type to Liquid.

Configure Volume Flow Measurement Unit for liquid applications

ProLink III Device Tools > Configuration > Process Measurement > Flow

Overview

Volume Flow Measurement Unit specifies the unit of measurement that will be displayed for the volume flow rate. The unit used for the volume total and volume inventory is based on this unit.

Configuration and Use Manual 21

Configure process measurement

Prerequisites

Before you configure Volume Flow Measurement Unit, be sure that Volume Flow Type is set to Liquid.

Procedure

Set Volume Flow Measurement Unit to the unit you want to use.

The default setting for Volume Flow Measurement Unit is l/sec (liters per second).

Options for Volume Flow Measurement Unit for liquid applications

The transmitter provides a standard set of measurement units for Volume Flow Measurement Unit, plus one user-defined measurement unit. Different communications tools may use

different labels for the units.

Unit description ProLink III label

Cubic feet per second

Cubic feet per minute

Cubic feet per hour

Cubic feet per day

Cubic meters per second

Cubic meters per minute

Cubic meters per hour

Cubic meters per day

U.S. gallons per second

U.S. gallons per minute

U.S. gallons per hour

U.S. gallons per day

Million U.S. gallons per day

Liters per second

Liters per minute

Liters per hour

Million liters per day

Imperial gallons per second

Imperial gallons per minute

Imperial gallons per hour

Imperial gallons per day

Barrels per second

Options for Volume Flow Measurement Unit for liquid applicationsTable 4-2:

ft3/sec

ft3/min

ft3/hr

ft3/day

m3/sec

m3/min

m3/hr

m3/day

US gal/sec

US gal/min

US gal/hr

US gal/day

mil US gal/day

l/sec

l/min

l/hr

mil l/day

Imp gal/sec

Imp gal/min

Imp gal/hr

Imp gal/day

(1)

barrels/sec

22 Micro Motion® LNG Series Meters

Configure process measurement

Options for Volume Flow Measurement Unit for liquid applications (continued)Table 4-2:

Unit description ProLink III label

Barrels per minute

Barrels per hour

Barrels per day

Beer barrels per second

Beer barrels per minute

Beer barrels per hour

Beer barrels per day

Special unit

(1) Unit based on oil barrels (42 U.S. gallons). (2) Unit based on U.S. beer barrels (31 U.S. gallons).

(2)

barrels/min

barrels/hr

barrels/day

Beer barrels/sec

Beer barrels/min

Beer barrels/hr

Beer barrels/day

special

Define a special measurement unit for volume flow

ProLink III

Device Tools > Configuration > Process Measurement > Flow > Special Units

Overview

Procedure

1. Specify Base Volume Unit.

Base Volume Unit is the existing volume unit that the special unit will be based on.

2. Specify Base Time Unit.

Base Time Unit is the existing time unit that the special unit will be based on.

3. Calculate Volume Flow Conversion Factor as follows:

a. x base units = y special units

b. Volume Flow Conversion Factor = x ÷ y

4. Enter Volume Flow Conversion Factor.

5. Enter Volume Flow Conversion Factor.

The original volume flow rate value is divided by this conversion factor.

6. Set Volume Flow Label to the name you want to use for the volume flow unit.

Configuration and Use Manual 23

Configure process measurement

7. Set Volume Total Label to the name you want to use for the volume total and volume

Example: Defining a special measurement unit for volume flow

You want to measure volume flow in pints per second (pints/sec).

1. Set Base Volume Unit to Gallons (gal).

2. Set Base Time Unit to Seconds (sec).

3. Calculate the conversion factor:

4. Set Volume Flow Conversion Factor to 0.1250.

5. Set Volume Flow Label to pints/sec.

6. Set Volume Total Label to pints.

inventory unit.

a. 1 gal/sec = 8 pints/sec

b. Volume Flow Conversion Factor = 1 ÷ 8 = 0.1250

4.2.3 Configure Volume Flow Cutoff

ProLink III Device Tools > Configuration > Process Measurement > Flow

Overview

Volume Flow Cutoff specifies the lowest volume flow rate that will be reported as measured. All volume flow rates below this cutoff are reported as 0.

Procedure

Set Volume Flow Cutoff to the value you want to use.

The default value for Volume Flow Cutoff is 0.0 l/sec (liters per second). The lower limit is 0. The upper limit is the sensor’s flow calibration factor, in units of l/sec, multiplied by 0.2.

4.3

Configure gas standard volume (GSV) flow measurement

The gas standard volume (GSV) flow measurement parameters control how gas standard volume flow is measured and reported.

The GSV flow measurement parameters include:

Volume Flow Type

•

24 Micro Motion® LNG Series Meters

Configure process measurement

Standard Gas Density

•

Gas Standard Volume Flow Measurement Unit

•

Gas Standard Volume Flow Cutoff

•

Restriction

You cannot implement both liquid volume flow and gas standard volume flow at the same time. You must choose one or the other.

4.3.1 Configure Volume Flow Type for gas applications

ProLink III Device Tools > Configuration > Process Measurement > Flow

Overview

Volume Flow Type controls whether liquid or gas standard volume flow measurement is used.

4.3.2

Procedure

Set Volume Flow Type to Gas Standard Volume.

Configure Standard Gas Density

ProLink III Device Tools > Configuration > Process Measurement > Flow

Overview

The Standard Gas Density value is used to convert the measured flow data to the standard reference values.

Prerequisites

Ensure that Density Measurement Unit is set to the measurement unit you want to use for Standard Gas Density.

Procedure

Set Standard Gas Density to the standard reference density of the gas you are measuring.

Note

ProLink III provides a guided method that you can use to calculate the standard density of your gas, if you do not know it.

Configuration and Use Manual 25

Configure process measurement

4.3.3 Configure Gas Standard Volume Flow Measurement Unit

ProLink III Device Tools > Configuration > Process Measurement > Flow

Overview

Gas Standard Volume Flow Measurement Unitspecifies the unit of measure that will be displayed for the gas standard volume flow rate. The measurement unit used for the gas standard volume total and the gas standard volume inventory is derived from this unit.

Prerequisites

Before you configure Gas Standard Volume Flow Measurement Unit, be sure that Volume Flow Type is set to Gas Standard Volume.

Procedure

Set Gas Standard Volume Flow Measurement Unit to the unit you want to use.

The default setting for Gas Standard Volume Flow Measurement Unit is SCFM (Standard Cubic Feet per Minute).

Tip

If the measurement unit you want to use is not available, you can define a special measurement unit.

Options for Gas Standard Volume Flow Measurement Unit

The transmitter provides a standard set of measurement units for Gas Standard Volume Flow Measurement Unit, plus one user-defined special measurement unit. Different

communications tools may use different labels for the units.

Options for

Unit description ProLink III label

Normal cubic meters per second

Normal cubic meters per minute

Normal cubic meters per hour

Normal cubic meters per day

Normal liter per second

Normal liter per minute

Normal liter per hour

Normal liter per day

Standard cubic feet per second

Standard cubic feet per minute

Gas Standard Volume Measurement Unit Table 4-3:

Nm3/sec

Nm3/hr

Nm3/day

NLPS

NLPM

NLPH

NLPD

SCFS

SCFM

26 Micro Motion® LNG Series Meters

Configure process measurement

Options for Gas Standard Volume Measurement Unit (continued)Table 4-3:

Unit description ProLink III label

Standard cubic feet per hour

Standard cubic feet per day

Standard cubic meters per second

Standard cubic meters per minute

Standard cubic meters per hour

Standard cubic meters per day

Standard liter per second

Standard liter per minute

Standard liter per hour

Standard liter per day

Special measurement unit

SCFH

SCFD

Sm3/sec

Sm3/min

Sm3/hr

Sm3/day

SLPS

SLPM

SLPH

SLPD

special

Define a special measurement unit for gas standard volume flow

ProLink III

Overview

Procedure

1. Specify Base Gas Standard Volume Unit.

Base Gas Standard Volume Unit is the existing gas standard volume unit that the special

unit will be based on.

2. Specify Base Time Unit.

Base Time Unit is the existing time unit that the special unit will be based on.

3. Calculate Gas Standard Volume Flow Conversion Factor as follows:

Device Tools > Configuration > Process Measurement > Flow > Special Units

a. x base units = y special units

b. Gas Standard Volume Flow Conversion Factor = x ÷ y

4. Enter the Gas Standard Volume Flow Conversion Factor.

The original gas standard volume flow value is divided by this conversion factor.

Configuration and Use Manual 27

Configure process measurement

5. Set Gas Standard Volume Flow Label to the name you want to use for the gas standard

6. Set Gas Standard Volume Total Label to the name you want to use for the gas standard

Example: Defining a special measurement unit for gas standard volume flow

You want to measure gas standard volume flow in thousands of standard cubic feet per minute.

1. Set Base Gas Standard Volume Unit to SCFM.

2. Set Base Time Unit to minutes (min).

3. Calculate the conversion factor:

volume flow unit.

volume total and gas standard volume inventory unit.

a. 1 thousands of standard cubic feet per minute = 1000 cubic feet per minute

b. Gas Standard Volume Flow Conversion Factor = 1 ÷ 1000 = 0.001

4.3.4

4. Set Gas Standard Volume Flow Conversion Factor to 0.001.

5. Set Gas Standard Volume Flow Label to KSCFM.

6. Set Gas Standard Volume Total Label to KSCF.

Configure Gas Standard Volume Flow Cutoff

ProLink III Device Tools > Configuration > Process Measurement > Flow

Overview

Gas Standard Volume Flow Cutoff specifies the lowest gas standard volume flow rate that will reported as measured. All gas standard volume flow rates below this cutoff will be reported as 0.

Procedure

Set Gas Standard Volume Flow Cutoff to the value you want to use.

The default value for Gas Standard Volume Flow Cutoff is 0.0. The lower limit is 0.0. There is no upper limit.

4.4

28 Micro Motion® LNG Series Meters

Configure flow direction

ProLink III Device Tools > Configuration > Process Measurement > Flow

Configure process measurement

Overview

Flow Direction controls how forward flow and reverse flow affect flow measurement and reporting. You can configure two flow directions - one flow direction to map to the first group of totals, and a second flow direction to map to the second group of totals. The default flow directions are: Forward for the first group of totals, and Reverse for the second group of totals.

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

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

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

the sensor.

Tip

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

Procedure

Set Flow Direction to the value you want to use.

4.4.1

You can configure two flow directions:

• The first flow direction is configured and applied to the first totals. The default setting is

Forward.

• The second flow direction is configured and applied to the second totals. The default

setting is Reverse.

Options for Flow Direction

Options for Flow Direction Table 4-4:

Flow direction setting from

ProLink III Relationship to Flow Direction arrow on sensor

Forward

Reverse

Absolute Value

Bidirectional

Negate Forward

Appropriate when the Flow Direction arrow is in the same direction as the majority of flow.

Flow Direction arrow is not relevant.

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

Appropriate when the Flow Direction arrow is in the opposite direction from the majority of flow.

Configuration and Use Manual 29

Configure process measurement

Flow direction setting from

Negate Bidirectional

Effect of Flow Direction on flow totals

Flow Direction affects how flow totals and inventories are calculated.

Options for Flow Direction (continued)Table 4-4:

ProLink III Relationship to Flow Direction arrow on sensor

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

Table 4-5:

Effect of the Flow Direction parameter and actual flow direction on flow totals and inventories

Actual flow direction

Flow Direction setting

Forward

Reverse

Bidirectional

Absolute Value

Negate Forward

Negate Bidirectional

Forward Zero flow Reverse

Totals increase Totals do not change Totals do not change

Totals do not change Totals do not change Totals increase

Totals increase Totals do not change Totals decrease

Totals increase Totals do not change Totals increase

Totals do not change Totals do not change Totals increase

Totals decrease Totals do not change Totals increase

4.5 Configure density measurement

The density measurement parameters control how density is measured and reported. Density measurement (along with mass measurement) is used to determine liquid volume flow.

4.5.1

Configure Density Measurement Unit

ProLink III Device Tools > Configuration > Process Measurement > Density

Overview

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

30 Micro Motion® LNG Series Meters

Configure process measurement

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).

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 Unit Table 4-6:

Unit description ProLink III label

Specific gravity unit (not temperature-corrected)

Grams per cubic centimeter

Grams per liter

Grams per milliliter

Kilograms per liter

Kilograms per cubic meter

Pounds per U.S. gallon

Pounds per cubic foot

Pounds per cubic inch

API gravity

Short ton per cubic yard

SGU

g/cm3

g/l

g/ml

kg/l

kg/m3

lbs/Usgal

lbs/ft3

lbs/in3

degAPI

sT/yd3

4.5.2 Configure two-phase flow parameters

ProLink III Device Tools > Configuration > Process Measurement > 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.

Configuration and Use Manual 31

Configure process measurement

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

Values below this will cause the transmitter to post Alert A105 ( Slug 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.

your process.

Values above this will cause the transmitter to post Alert A105 ( Slug 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.

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.

• All outputs that are configured to represent flow rate hold their 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:

• Outputs that represent flow rate revert to reporting actual flow.

32 Micro Motion® LNG Series Meters

• 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, the outputs that represent flow rate report a flow rate of 0.

If Two-Phase Flow Timeout is set to 0.0 seconds, the outputs that represent flow rate will report a flow rate of 0 as soon as two-phase flow is detected.

4.5.3 Configure density damping

ProLink III Device Tools > Configuration > Process Measurement > Density

Overview

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

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

Configure process measurement

Procedure

Set Density Damping to the value you want to use.

The default value is 1.28 seconds. The range is 0 to 60 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. The valid values for Density Damping are: 0, 0.04, 0.08, 0.16, 0.32... 40.96.

Effect of density damping on volume measurement

Density Damping affects liquid volume measurement. Liquid volume values are calculated from the damped density value rather than the measured density value. Density Damping does not affect gas standard volume measurement.

Configuration and Use Manual 33

Configure process measurement

4.5.4 Configure Density Cutoff

ProLink III Device Tools > Configuration > Process Measurement > Density

Overview

Density Cutoff 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 to the value you want to use.

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

Effect of Density Cutoff on volume measurement

Density Cutoff affects liquid volume measurement. If the density value goes below Density Cutoff, the volume flow rate is reported as 0. Density Cutoff does not affect gas standard

volume measurement. Gas standard volume values are always calculated from the value configured for Standard Gas Density.

4.6 Configure temperature measurement

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

4.6.1

Configure Temperature Measurement Unit

ProLink III Device Tools > Configuration > Process Measurement > Temperature

Overview

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

Procedure

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

The default setting is Degrees Celsius.

Options for Temperature Measurement Unit

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

34 Micro Motion® LNG Series Meters

Options for Temperature Measurement Unit Table 4-7:

Unit description ProLink III

Degrees Celsius

Degrees Fahrenheit

Degrees Rankine

Kelvin

4.6.2 Configure Temperature Damping

ProLink III Device Tools > Configuration > Temperature

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).

Configure process measurement

°C

°F

°R

°K

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.

The default value is 4.8 seconds. The range is 0.0 to 38.4 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. Valid values for Temperature Damping are 0, 0.6, 1.2, 2.4, 4.8, … 38.4.

Configuration and Use Manual 35

Configure process measurement

Effect of Temperature Damping on process measurement

Temperature Damping affects all processes and algorithms that use temperature data from

the internal sensor RTD.

Temperature compensation

Temperature compensation adjusts process measurement to compensate for the effect of temperature on the sensor tubes.

36 Micro Motion® LNG Series Meters

Configure device options and preferences

5 Configure device options and

preferences

Topics covered in this chapter:

Configure response time parameters

•

Configure alert handling

•

Configure informational parameters

•

5.1 Configure response time parameters

You can configure the rate at which process data is polled and process variables are calculated.

Response time parameters include:

Update Rate

•

• Calculation Speed (Response Time)

5.1.1

Configure Calculation Speed (Response Time)

ProLink III Device Tools > Configuration > Process Measurement > Response > Calculation Speed

Overview

Calculation Speed is used to apply a different algorithm to the calculation of process variables from the raw process data. Calculation Speed = Special produces faster and “noisier” response to changes in the process.

Tip

You can use Calculation Speed = Special with either setting of Update Rate. The parameters control different aspects of flowmeter processing.

Procedure

Set Calculation Speed as desired.

Option

Normal

Special

Description

Transmitter calculates process variables at the standard speed.

Transmitter calculates process variables at a faster speed.

Configuration and Use Manual 37

Configure device options and preferences

5.2 Configure alert handling

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

• Configure Fault Timeout (Section 5.2.1)

• Configure Status Alert Severity (Section 5.2.2)

5.2.1 Configure Fault Timeout

ProLink III Device Tools > Configuration > Fault Processing

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, A005, A008, A016, A033. For all other alerts, fault actions are performed as soon as the alert is detected.

5.2.2

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.

Configure Status Alert Severity

ProLink III Device Tools > Configuration > Alert Severity

Overview

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

38 Micro Motion® LNG Series Meters

Configure device options and preferences

Restrictions

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

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

Tip

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

Procedure

1. Select a status alert.

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

Option

Fault

Informational

Ignore

Description

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 (if available) returns to green and may or may not flash.

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 (if available) returns to green and may or may not flash.

No action

Status alerts and options for Status Alert Severity

Status alerts and

Alert code Status message Default severity Notes Configurable?

A001 EEPROM Error

A002 RAM Error

A003 No Sensor Response

A004 Temperature Overrange

Status Alert Severity Table 5-1:

Fault

Yes

Configuration and Use Manual 39

Configure device options and preferences

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

Alert code Status message Default severity Notes Configurable?

A005 Mass Flow Rate Overrange

A006 Characterization Required

A008 Density Overrange

A009 Transmitter Initializing/

Warming Up

A010 Calibration Failure

A011 Zero Calibration Failed:

Low

A012 Zero Calibration Failed:

High

A013 Zero Calibration Failed:

Unstable

A014 Transmitter Failure

A016 Sensor RTD Failure

A020 No Flow Cal Value

A021 Incorrect Sensor Type (K1)

A027 Security Breach

A030 Incorrect Board Type

A033 Insufficient Right/Left Pick-

off Signal

A102 Drive Overrange

A104 Calibration in Progress

A105 Slug Flow

A107 Power Reset Occurred

Fault

Informational

Applies only to flowmeters with the enhanced core processor.

Can be set to either Informational or Ignore, but cannot be set to Fault.

Normal transmitter behavior; occurs after every power cycle.

Yes

5.3 Configure informational parameters

The informational parameters can be used to identify or describe your meter. They are not used in process measurement and they are not required.

5.3.1

40 Micro Motion® LNG Series Meters

Configure the sensor index

ProLink III Device Tools > Configuration > Informational Parameters > Sensor Index

You can configure the sensor index only if the connection is through a service port. If the connection is an RS-485 port, the sensor index is read-only, with each Modbus address corresponding to a different sensor. In default, Modbus address 1 corresponds to sensor 1, Modbus address 2 corresponds to sensor 2.

5.3.2 Configure the RTD cable length

ProLink III Device Tools > Configuration > Informational Parameters > Sensor > RTD1(2) Cable Length

Overview

Configure the RTD cable length if your 9-wire cable length is other than three meters.

Prerequisites

Verify that the sensor index is correct.

Procedure

Enter the cable length (unit:m) in the RTD 1(2) Cable Length field.

Configure device options and preferences

5.3.3

5.3.4

Related information

Configure the sensor index

Configure Sensor Serial Number

ProLink III Device Tools > Configuration > Informational Parameters > Sensor

Overview

Sensor Serial Number lets you store the serial number of the sensor component of your flowmeter in transmitter memory. This parameter is not used in processing and is not required.

Procedure

1. Obtain the sensor serial number from your sensor tag.

2. Enter the serial number in the Sensor Serial Number field.

Configure Sensor Material

ProLink III Device Tools > Configuration > Informational Parameters > Sensor

Configuration and Use Manual 41

Configure device options and preferences

Overview

Sensor Material lets you store the type of material used for your sensor’s wetted parts in transmitter memory. This parameter is not used in processing and is not required.

Procedure

1. Obtain the material used for your sensor’s wetted parts from the documents shipped with your sensor, or from a code in the sensor model number.

To interpret the model number, refer to the product data sheet for your sensor.

2. Set Sensor Material to the appropriate option.

5.3.5 Configure Sensor Liner Material

ProLink III Device Tools > Configuration > Informational Parameters > Sensor

Overview

5.3.6

Sensor Liner Material lets you store the type of material used for your sensor liner in transmitter memory. This parameter is not used in processing and is not required.

Procedure

1. Obtain your sensor’s liner material from the documents shipped with your sensor, or from a code in the sensor model number.

To interpret the model number, refer to the product data sheet for your sensor.

2. Set Sensor Liner Material to the appropriate option.

Configure Sensor Flange Type

ProLink III Device Tools > Configuration > Informational Parameters > Sensor

Overview

Sensor Flange Type lets you store your sensor’s flange type in transmitter memory. This parameter is not used in processing and is not required.

Procedure

1. Obtain your sensor’s flange type from the documents shipped with your sensor, or from a code in the sensor model number.

To interpret the model number, refer to the product data sheet for your sensor.

2. Set Sensor Flange Type to the appropriate option.

42 Micro Motion® LNG Series Meters

5.3.7 Configure Descriptor

ProLink III Device Tools > Configuration > Informational Parameters > Transmitter

Overview

Descriptor lets you store a description in transmitter memory. The description is not used in processing and is not required.

Procedure

Enter a description for the transmitter or device

You can use up to 16 characters for the description.

5.3.8 Configure Message

Message lets you store a short message in transmitter memory. This parameter is not used in processing and is not required.

Configure device options and preferences

5.3.9

Procedure

Enter a short message for the transmitter or device.

Your message can be up to 32 characters long.

Configure Date

ProLink III Device Tools > Configuration > Informational Parameters > Transmitter

Overview

Date lets you store a static date (not updated by the transmitter) in transmitter memory. This parameter is not used in processing and is not required.

Procedure

Enter the date you want to use, in the form mm/dd/yyyy.

Tip

ProLink III provides a calendar tool to help you select the date.

Configuration and Use Manual 43

Configure device options and preferences

44 Micro Motion® LNG Series Meters

Integrate the meter with the control system

6 Integrate the meter with the control

system

Topics covered in this chapter:

Configure events

•

Configure digital communications

•

6.1 Configure events

An event occurs when the real-time value of a user-specified process variable moves past a user-defined setpoint. Events are used to provide notification of process changes or to perform specific transmitter actions if a process change occurs.

6.1.1 Configure an enhanced event

ProLink III Device Tools > Configuration > Events > Enhanced Events

Overview

An enhanced event is used to provide notification of process changes and, optionally, to perform specific transmitter actions if the event occurs. 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 userdefined setpoints. You can define up to five enhanced events.

Procedure

1. Select the event that you want to configure.

2. Specify Event Type.

Options

Description

x > A

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

x < A

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

A ≤ x ≤ B

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.

Configuration and Use Manual 45

Integrate the meter with the control system

Options Description

OUT

3. Assign a process variable to the event.

4. Set values for the required setpoints.

• 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.

Options for Enhanced Event Action

Options for Enhanced Event Action Table 6-1:

x ≤ A or x ≥ B

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.

Action ProLink III

None (default)

Start sensor zero

Start/stop all totalizers

Reset mass total

Reset volume total

Reset gas standard volume total

Reset all totals

None

Start Sensor Zero

Start/Stop All Totalization

Reset Mass Total

Reset Volume Total

Reset Gas Std Volume Total

Reset All Totals

6.2 Configure digital communications

The digital communications parameters control how the transmitter will communicate using digital communications.

Your transmitter supports the following types of digital communications:

• Modbus RTU via the service port

• Modbus RTU via the RS-485 port

Note

The service port responds automatically to a wide range of connection requests. It is not configurable.

46 Micro Motion® LNG Series Meters

Integrate the meter with the control system

6.2.1 Configure Modbus/RS-485 communications

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

Overview

Modbus/RS-485 communications parameters control Modbus communication with the transmitter's RS-485 terminals.

Modbus/RS-485 communications parameters include:

• Modbus Address (Slave Address)

Floating-Point Byte Order

•

Additional Communications Response Delay

•

Procedure

1. Set Modbus Address to a unique value on the network.

2. Set Floating-Point Byte Order to match the byte order used by your Modbus host.

Code

Byte order

1–2 3–4

3–4 1–2

2–1 4–3

4–3 2–1

See Table 6‐2for the bit structure of bytes 1, 2, 3, and 4.

Bit structure of floating-point bytesTable 6-2:

Byte Bits Definition

1 SEEEEEEE S=Sign

E=Exponent

2 EMMMMMMM E=Exponent

M=Mantissa

3 MMMMMMMM M=Mantissa

4 MMMMMMMM M=Mantissa

3. (Optional) Set Additional Communications Response Delay in delay units.

A delay unit is 2/3 of the time required to transmit one character, as calculated for the port currently in use and the character transmission parameters. Valid values range from 1 to 255.

Configuration and Use Manual 47

Integrate the meter with the control system

Additional Communications Response Delay is used to synchronize Modbus communications with hosts that operate at a slower speed than the transmitter. The value specified here will be added to each response the transmitter sends to the host.

Tip

Do not set Additional Communications Response Delayunless required by your Modbus host.

6.2.2 Configure RS-485 terminals

ProLink III Device Tools > Configuration > Communications > RS-485 Terminals

Overview

Modbus/RS-485 communication parameters control Modbus communication with the transmitter's RS-485 terminals.

RS-485 terminal parameters include:

• Baud rate

• Parity

• Stop bits

Procedure

1. Set Baud Rate as appropriate for your network.

The following baud rates are supported:

• 4800

• 9600

• 19200

• 38400

2. Set Parity as appropriate for your network.

The following parity bits are supported:

• None

• Odd

• Even

3. Set Stop Bits as appropriate for your network.

The following stop bits are supported:

• 1

• 2

48 Micro Motion® LNG Series Meters

Integrate the meter with the control system

6.2.3 Configure Digital Communications Fault Action

ProLink III Device Tools > Configuration > Fault Processing

Overview

Digital Communications Fault Actionspecifies the values that will be reported via digital communications if the device encounters an internal fault condition.

Procedure

Set Digital Communications Fault Action as desired.

The default setting is None.

Options for Digital Communications Fault Action

Options for Digital Communications Fault Action Table 6-3:

Label

Upscale Upscale

Downscale Downscale

Zero IntZero-All 0

None

None (default) • All process variables are reported as measured.

DescriptionProLink III

• Process variable values indicate that the value is great-

er than the upper sensor limit.

• Totalizers stop incrementing.

• Process variable values indicate that the value is lower

than the lower sensor limit.

• Totalizers stop incrementing.

• Flow rate variables go to the value that represents a

flow rate of 0 (zero).

• Density is reported as 0.

• Temperature is reported as 0 °C , or the equivalent if

other units are used (e.g., 32 °F .

• Drive gain is reported as measured.

• Totalizers stop incrementing.

• Totalizers increment if they are running.

Configuration and Use Manual 49

Integrate the meter with the control system

50 Micro Motion® LNG Series Meters

7 Complete the configuration

Topics covered in this chapter:

Back up transmitter configuration

•

Enable write‐protection on the transmitter configuration

•

7.1 Back up transmitter configuration

ProLink III provides a configuration upload/download function which allows you to save configuration sets to your PC. This allows you to back up and restore your transmitter configuration. This is also a convenient way to replicate a configuration across multiple devices.

Restriction

This function is not available with any other communications tools.

Complete the configuration

7.2

Procedure

To back up the transmitter configuration using ProLink III:

1. Choose Device Tools > Configuration Transfer > Save or Load Configuration Data.

2. In the Configuration groupbox, select the configuration data you want to save.

3. Click Save, then specify a file name and location on your computer.

4. Click Start Save.

The backup file is saved to the specified name and location. It is saved as a text file and can be read using any text editor.

Enable write-protection on the transmitter configuration

ProLink III Device Tools > Configuration > Write-Protection

Overview

If the transmitter is write-protected, the configuration is locked and nobody can change it until it is unlocked. This prevents accidental or unauthorized changes to the transmitter configuration parameters.

Configuration and Use Manual 51

Complete the configuration

52 Micro Motion® LNG Series Meters

Operations, maintenance, and troubleshooting

Part III

Operations, maintenance, and troubleshooting

Chapters covered in this part:

Transmitter operation

•

Measurement support

•

Troubleshooting

•

Configuration and Use Manual 53

Operations, maintenance, and troubleshooting

54 Micro Motion® LNG Series Meters

8 Transmitter operation

Topics covered in this chapter:

Custody transfer

•

Record the process variables

•

View process variables

•

View transmitter status using the status LED

•

View and acknowledge status alerts

•

Read totalizer and inventory values

•

Start and stop totalizers and inventories

•

Reset totalizers

•

Reset inventories

•

Transmitter operation

8.1 Custody transfer

A custody transfer switch that controls custody transfer status is located inside the dual processor.

When the switch is off

• The transmitter works under custody transfer unsecured mode

• The transmitter can be configured

• The status LED is red

• The A027 Security Breach alert is active

When the switch is on:

• The transmitter works under custody transfer secured mode

• The transmitter cannot be configured

• Unless there are alarms, the status LED is green

8.2

Record the process variables

Micro Motion suggests that you make a record of specific process variable measurements, including the acceptable range of measurements, under normal operating conditions. This data will help you recognize when the process or diagnostic variables are unusually high or low, and may help you diagnose and troubleshoot application issues.

Procedure

Record the following process and diagnostic variables, under normal operating conditions.

Configuration and Use Manual 55

Transmitter operation

Measurement

Variable

Flow rate

Density

Temperature

Tube frequency

Pickoff voltage

Drive gain

Typical average Typical high Typical low

8.3 View process variables

ProLink III View the desired variable on the main screen under Process Variables. See Section 8.3.1for

more information.

Overview

Process variables provide information about the state of the process fluid, such as flow rate, density, and temperature, as well as running totals. Process variables can also provide data about flowmeter operation, such as drive gain and pickoff voltage. This information can be used to understand and troubleshoot your process.

8.3.1

8.4

• View process variables and other data using ProLink III (Section 8.3.1)

View process variables and other data using ProLink III

Monitor process variables, diagnostic variables, and other data to maintain process quality.

ProLink III automatically displays process variables, diagnostic variables, and other data on the main screen.

Tip

ProLink III allows you to choose the process variables that appear on the main screen. You can also choose whether to view data in Analog Gauge view or digital view, and you can customize the gauge settings. For more information, see the ProLink III user manual.

View transmitter status using the status LED

The status LED shows the current alert condition of the transmitter. The status LED is located on the face of the transmitter.

Observe the status LED.

56 Micro Motion® LNG Series Meters

Transmitter operation

To interpret the status LED, see the following table.

Restriction

If LED Blinking is disabled, the status LED will flash only during calibration. It will not flash to indicate an unacknowledged alarm.

Status LED statesTable 8-1:

LED behavior Alarm condition Description

Solid green No alarm Normal operation

Solid yellow Active low-severity alarm Alarm has been acknowledged

Flashing yellow

Solid red Active high-severity alarm Alarm has been acknowledged

Flashing red Active high-severity alarm Alarm has not been acknowledged

Active low-severity alarm Alarm has not been acknowledged

8.5 View and acknowledge status alerts

The transmitter posts status alerts whenever a process variable exceeds its defined limits or the transmitter detects a fault condition. You can view active alerts, and you can acknowledge alerts. Acknowledging alerts is not required.

• View and acknowledge alerts using ProLink III (Section 8.5.1)

8.5.1

View and acknowledge alerts using ProLink III

You can view a list containing all alerts that are active, or inactive but unacknowledged. From this list, you can acknowledge individual alerts or choose to acknowledge all alerts at once.

1. View alerts on the ProLink III main screen under Alerts.

All active or unacknowledged alerts are listed, and displayed according to the following categories:

Alert data in transmitter memory

8.5.2 Alert data in transmitter memory

The transmitter maintains three sets of data for every alert that is posted.

For each alert occurrence, the following three sets of data are maintained in transmitter memory:

• Alert List

• Alert Statistics

• Recent Alerts

Alert data in transmitter memoryTable 8-2:

Transmitter action if condition occurs

Alert data structure

Alert List As determined by the alert status bits, a list of:

Alert Statistics One record for each alert (by alert number)

Contents Clearing

Cleared and regenerated with every transmit-

• All currently active alerts

• All previously active alerts that have not

been acknowledged

that has occurred since the last master reset. Each record contains:

• A count of the number of occurrences

• Timestamps for the most recent posting

and clearing

ter power cycle

Not cleared; maintained across transmitter power cycles

58 Micro Motion® LNG Series Meters

Transmitter operation

Alert data in transmitter memory (continued)Table 8-2:

Transmitter action if condition occurs

Alert data structure

Recent Alerts 50 most recent alert postings or alert clearings Not cleared; maintained across transmitter

Contents Clearing

power cycles

8.6 Read totalizer and inventory values

ProLink III View the desired variable on the main screen under Process Variables.

Overview

Totalizers keep track of the total amount of mass or volume measured by the transmitter since the last totalizer reset. Inventories keep track of the total amount of mass or volume measured by the transmitter since the last inventory reset.

Tip

You can use the inventories to keep a running total of mass or volume across multiple totalizer resets.

8.7

Start and stop totalizers and inventories

ProLink III Device Tools > Totalizer Control > Totalizer and Inventories > Start All Totals

Device Tools > Totalizer Control > Totalizer and Inventories > Stop All Totals

Overview

When you start a totalizer, it tracks process measurement. In a typical application, its value increases with flow. When you stop a totalizer, it stops tracking process measurement and its value does not change with flow. Inventories are started and stopped automatically, when totalizers are started and stopped.

Important

Totalizers and inventories are started or stopped as a group. When you start any totalizer, all other totalizers and all inventories are started simultaneously.When you stop any totalizer, all other totalizers and all inventories are stopped simultaneously. You cannot start or stop inventories directly.

Configuration and Use Manual 59

Transmitter operation

8.8 Reset totalizers

ProLink III Device Tools > Totalizer Control > Totalizer and Inventories > Reset Mass Total

Device Tools > Totalizer Control > Totalizer and Inventories > Reset Volume Total

Device Tools > Totalizer Control > Totalizer and Inventories > Reset Gas Total

Device Tools > Totalizer Control > Totalizer and Inventories > Reset All Totals

Overview

When you reset a totalizer, the transmitter sets its value to 0. It does not matter whether the totalizer is started or stopped. If the totalizer is started, it continues to track process measurement.

Tip

When you reset a single totalizer, the values of other totalizers are not reset. Inventory values are not reset.

8.9 Reset inventories

ProLink III Device Tools > Totalizer Control > Totalizer and Inventories > Reset Mass Inventory

Device Tools > Totalizer Control > Totalizer and Inventories > Reset Volume Inventory

Device Tools > Totalizer Control > Totalizer and Inventories > Reset Gas Inventory

Device Tools > Totalizer Control > Totalizer and Inventories > Reset All Inventories

Overview

When you reset an inventory, the transmitter sets its value to 0. It does not matter whether the inventory is started or stopped. If the inventory is started, it continues to track process measurement.

Tip

When you reset a single inventory, the values of other inventories are not reset. Totalizer values are not reset.

Prerequisites

To use ProLink III to reset the inventories, the feature must be enabled.

• To enable inventory reset in ProLink III:

1. Choose Tools > Options.

2. Select Reset Inventories from ProLink III.

60 Micro Motion® LNG Series Meters

9 Measurement support

Topics covered in this chapter:

Options for measurement support

•

Zero the meter

•

Validate the meter

•

Perform a (standard) D1 and D2 density calibration

•

9.1 Options for measurement support

Micro Motion provides several measurement support procedures to help you evaluate and maintain your flowmeter's accuracy.

The following methods are available:

• Meter validation compares flowmeter measurements reported by the transmitter to

an external measurement standard. Meter validation requires one data point.

• Calibration establishes the relationship between a process variable and the signal

produced at the sensor. You can calibrate the flowmeter for zero, density, and temperature. Density and temperature calibration require two data points (low and high) and an external measurement for each.

Measurement support

9.2

9.2.1

Tips

• To prove the meter against a regulatory standard, or to correct measurement error, use

meter validation and meter factors.

• Before performing a field calibration, contact Micro Motion to see if there is an alternative. In

many cases, field calibrations have a negative effect on measurement accuracy.

Zero the meter

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

Zero the meter using ProLink III

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

Important

In most cases, the factory zero is more accurate than the field zero. Do not zero the meter unless one of the following is true:

• The zero is required by site procedures.

Configuration and Use Manual 61

Measurement support

• The stored zero value fails the zero verification procedure.

Prerequisites

Before performing a field zero, execute the Zero Verification procedure to see whether or not a field zero can improve measurement accuracy.

Important

Procedure

1. Prepare the meter:

a. Allow the meter to warm up for at least 20 minutes after applying power.

b. Run the process fluid through the sensor until the sensor temperature reaches

the normal process operating temperature.

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

upstream valve if available.

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

completely full of process fluid.

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

contain particles that can settle out.

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

g. Observe the drive gain, temperature, and density readings. If they are stable,

check the Live Zero or Field Verification Zero value. If the average value is close to 0, you should not need to zero the meter.

2. Choose Device Tools > Calibration > Zero Verification and Calibration.

3. Modify Zero Time, if desired.

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

4. Click Calibrate Zero.

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

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

new zero value are displayed.

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

Postrequisites

Restore normal flow through the sensor by opening the valves.

62 Micro Motion® LNG Series Meters

Need help? If the zero fails:

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

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

• If you want to return the flowmeter to operation using a previous zero value:

- To restore the zero value set at the factory: Device Tools > Zero Verification and Calibration >

Calibrate Zero > Restore Factory Zero. This function requires the enhanced core processor.

- To restore the most recent valid value from transmitter memory: Device Tools > Zero

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

Restriction

Restore the factory zero only if your meter was purchased as a unit, it was zeroed at the factory, and you are using the original components.

9.2.2 Record the zeros

Measurement support

9.3

ProLink III Device Tools > Diagnostics > Zero Log

Overview

Record the zero values from the zero log. The zero log stores the last twenty zero values for each sensor, including the time stamp, maximum/minumum temperature, maximum/minimum density, and maximum/ minimum drive gain.

Note

The maximum and minimum values are the values stored while the meter was calibrating each zero.

Validate the meter

ProLink III Device Tools > Configuration > Process Measurement > Flow

Device Tools > Configuration > Process Measurement > Density

Overview

Meter validation compares flowmeter measurements reported by the transmitter to an external measurement standard. If the transmitter value for mass flow, volume flow, or density measurement is significantly different from the external measurement standard, you may want to adjust the corresponding meter factor. The flowmeter’s actual measurement is multiplied by the meter factor, and the resulting value is reported and used in further processing.

Configuration and Use Manual 63

NewMeterFactor = ConfiguredMeterFactor

ReferenceMeasurement

FlowmeterMeasurement

MeterFactor

MassFlow

= 1

250

250.27

= 0.9989

Measurement support

Prerequisites

Identify the meter factor(s) that you will calculate and set. You may set any combination of the three meter factors: mass flow, volume flow, and density. Note that all three meter factors are independent:

• The meter factor for mass flow affects only the value reported for mass flow.

• The meter factor for density affects only the value reported for density.

Important

To adjust volume flow, you must set the meter factor for volume flow. Setting a meter factor for mass flow and a meter factor for density will not produce the desired result. The volume flow calculations are based on original mass flow and density values, before the corresponding meter factors have been applied.

If you plan to calculate the meter factor for volume flow, be aware that validating volume in the field may be expensive, and the procedure may be hazardous for some process fluids. Therefore, because volume is inversely proportional to density, an alternative to direct measurement is to calculate the meter factor for volume flow from the meter factor for density. See Section 9.3.1 for instructions on this method.

Obtain a reference device (external measurement device) for the appropriate process variable.

Important

For good results, the reference device must be highly accurate.

Procedure

1. Determine the meter factor as follows:

a. Use the flowmeter to take a sample measurement.

b. Measure the same sample using the reference device.

c. Calculate the meter factor using the following formula:

2. Ensure that the calculated meter factor is between 0.8 and 1.2, inclusive. If the meter factor is outside these limits, contact Micro Motion customer service.

3. Configure the meter factor in the transmitter.

Example: Calculating the meter factor for mass flow

The flowmeter is installed and validated for the first time. The mass flow measurement from the transmitter is 250.27 lb. The mass flow measurement from the reference device is 250 lb. The mass flow meter factor is calculated as follows:

64 Micro Motion® LNG Series Meters

MeterFactor

MassFlow

= 0.9989

250.25

250.07

= 0.9996

MeterFactor

Volume

MeterFactor

Density

MeterFactor

Volume

= ConfiguredMeterFactor

Density

Flowmeter

Density

Reference Device

Measurement support

The first meter factor for mass flow is 0.9989.

One year later, the flowmeter is validated again. The mass flow measurement from the transmitter is 250.07 lb. The mass flow measurement from the reference device is

250.25 lb. The new mass flow meter factor is calculated as follows:

The new meter factor for mass flow is 0.9996.

9.3.1 Alternate method for calculating the meter factor for volume flow

The alternate method for calculating the meter factor for volume flow is used to avoid the difficulties that may be associated with the standard method.

This alternate method is based on the fact that volume is inversely proportional to density. It provides partial correction of the volume flow measurement by adjusting for the portion of the total offset that is caused by the density measurement offset. Use this method only when a volume flow reference is not available, but a density reference is available.

9.4

Procedure

1. Calculate the meter factor for density, using the standard method (see Section 9.3).

2. Calculate the meter factor for volume flow from the meter factor for density:

Note

The following equation is mathematically equivalent to the first equation. You may use whichever version you prefer.

3. Ensure that the calculated meter factor is between 0.8 and 1.2, inclusive. If the

meter factor is outside these limits, contact Micro Motion customer service.

4. Configure the meter factor for volume flow in the transmitter.

Perform a (standard) D1 and D2 density calibration

Density calibration establishes the relationship between the density of the calibration fluids and the signal produced at the sensor. Density calibration includes the calibration of the D1 (low-density) and D2 (high-density) calibration points.

Configuration and Use Manual 65

Measurement support

Important

Micro Motion flowmeters are calibrated at the factory, and normally do not need to be calibrated in the field. Calibrate the flowmeter only if you must do so to meet regulatory requirements. Contact Micro Motion before calibrating the flowmeter.

Tip

Micro Motion recommends using meter validation and meter factors, rather than calibration, to prove the meter against a regulatory standard or to correct measurement error.

9.4.1 Perform a D1 and D2 density calibration using ProLink III

Prerequisites

• During density calibration, the sensor must be completely filled with the calibration

fluid, and flow through the sensor must be at the lowest rate allowed by your application. This is usually accomplished by closing the shutoff valve downstream from the sensor, then filling the sensor with the appropriate fluid.

• D1 and D2 density calibration require a D1 (low-density) fluid and a D2 (high-

density) fluid. You may use air and water.

• The calibrations must be performed without interruption, in the order shown. Make

sure that you are prepared to complete the process without interruption.

• Before performing the calibration, record your current calibration parameters. You

can do this by saving the current configuration to a file on the PC. If the calibration fails, restore the known values.

Procedure

See the following figure.

66 Micro Motion® LNG Series Meters

Measurement support

D1 and D2 density calibration using ProLink IIIFigure 9-1:

Configuration and Use Manual 67

Measurement support

68 Micro Motion® LNG Series Meters

10 Troubleshooting

Topics covered in this chapter:

Status LED states

•

Status alerts, causes, and recommendations

•

Flow measurement problems

•

Density measurement problems

•

Temperature measurement problems

•

Check power supply wiring

•

Check grounding

•

Check for radio frequency interference (RFI)

•

Check for two‐phase flow (slug flow)

•

Check the drive gain

•

Check the pickoff voltage

•

Check for internal electrical problems

•

Troubleshooting

10.1 Status LED states

The status LED on the transmitter indicates whether or not alerts are active. If alerts are active, view the alert list to identify the alerts, then take appropriate action to correct the alert condition.

Status LED statesTable 10-1:

Condition LED Blinking parameter LED behavior

Normal operation (no alert) N/A Solid green

Unacknowledged corrected condition (no alert) Enabled Flashing green

Acknowledged low-severity alert (outputs continue to report process data)

Unacknowledged low-severity alert (outputs continue to report process data)

Acknowledged high-severity alert (outputs in fault)

Unacknowledged high-severity alert (outputs in fault)

Disabled Solid green

N/A Solid yellow

Enabled Flashing yellow

Disabled Solid yellow

N/A Solid red

Enabled Flashing red

Disabled Solid red

Configuration and Use Manual 69

Troubleshooting

10.2 Status alerts, causes, and recommendations

Alert number Alert title Possible cause Recommended actions

A001 EEPROM Error The transmitter has detected a

problem communicating with the sensor.

A002 RAM Error The transmitter has detected a

problem communicating with the sensor.

A003 No Sensor Response The transmitter is not receiving one

or more basic electrical signals from the sensor.

A004 Temperature Over-

range

A005 Mass Flow Rate

Overrange

A006 Characterization Re-

quired

The RTD resistance is out of range for the sensor.

The measured flow rate is greater than the maximum flow rate of the sensor (ΔT greater than 200 µs).

Calibration factors have not been entered, or the sensor type is incorrect, or the calibration factors are incorrect for the sensor type.

• Cycle power to the meter.

• Replace the core processor.

• Contact Micro Motion.

• Cycle power to the meter.

• Replace the core processor.

• Contact Micro Motion.

• Check the drive gain and the pickoff

voltage.

• Check the wiring between the sensor

and the transmitter.

• Verify that internal wiring is secure and

that there are no internal electrical problems.

• Check the integrity of the sensor tubes.

• Check your process conditions against

the values reported by the device.

• Verify temperature characterization or

calibration parameters.

• Verify that internal wiring is secure and

that there are no internal electrical problems.

• Check the wiring between the sensor

and the transmitter.

• Contact Micro Motion.

• If other alerts are present, resolve those

alert conditions first. If the current alert persists, continue with the recommended actions.

• Check your process conditions against

the values reported by the device.

• Check for two-phase flow.

• Verify all of the characterization or cali-

bration parameters. See the sensor tag or the calibration sheet for your meter.

• Verify the setting of the Sensor Type pa-

rameter.

• If Sensor Type=Curved Tube, ensure that

no parameters specific to Straight Tube have been set.

• Verify that internal wiring is secure and

that there are no internal electrical problems.

• Replace the core processor.

• Contact Micro Motion.

70 Micro Motion® LNG Series Meters

Alert number Alert title Possible cause Recommended actions

A008 Density Overrange The line density is greater than

10 g/cm3 (10000 kg/m3 .

A009 Transmitter Initializ-

ing/Warming Up

A010 Calibration Failure Many possible causes.

Transmitter is in power-up mode. • Allow the meter to complete its power-

This alert will not clear until you cycle power to the meter.

• If other alerts are present, resolve those

alert conditions first. If the current alert persists, continue with the recommended actions.

• Check for air in the flow tubes, tubes

not filled, foreign material in the tubes, coating in the tubes, or other process problems.

• Check for two-phase flow.

• Verify all of the characterization or cali-

bration parameters. See the sensor tag or the calibration sheet for your meter.

• Check the drive gain and the pickoff

voltage.

• Perform Smart Meter Verification.

• Perform density calibration.

• Contact Micro Motion.

up sequence. The alert should clear automatically.

• If other alerts are present, resolve those

alert conditions first. If the current alert persists, continue with the recommended actions.

• Verify that the tubes are full of process

fluid.

• Check the wiring between the sensor

and the transmitter.

• Verify that the transmitter is receiving

sufficient power.

- If it is not, correct the problem and

cycle power to the meter.

- If it is, this suggests that the trans-

mitter has an internal power issue. Replace the transmitter.

• Ensure that the process fluid is stable.

Check for two-phase flow, high process noise, or a fast transition between two fluids of different densities.

• Ensure that your calibration procedure

meets the documented requirements, cycle power to the meter, then retry the procedure.

• If this alert appears during zeroing, veri-

fy that there is no flow through the sensor, cycle power to the meter, then retry the procedure.

Troubleshooting

Configuration and Use Manual 71

Troubleshooting

Alert number Alert title Possible cause Recommended actions

A011 Zero Calibration

Failed: Low

A012 Zero Calibration

Failed: High

A013 Zero Calibration

Failed: Unstable

A014 Transmitter Failure Many possible causes. • Ensure that all wiring compartment

A016 Sensor Temperature

(RTD) Failure

Many possible causes, such as too much flow, especially reverse flow, through the sensor during a calibration procedure, or a zero result that is too low. This alert is accompanied by A010.

This alert will not clear until you cycle power to the meter.

Many possible causes, such as too much flow, especially forward flow, through the sensor during a calibration procedure, or a zero result that is too high. This alert is accompanied by A010.

This alert will not clear until you cycle power to the meter.

There was too much process instability during the calibration procedure.

This alert will not clear until you cycle power to the meter.

The value computed for the resistance of the line RTD is outside limits.

• Verify that there is no flow through the

sensor, cycle power to the meter, then retry the procedure.

• Verify that there is no flow through the

sensor, cycle power to the meter, then retry the procedure.

• Remove or reduce sources of electro-

mechanical noise (e.g., pumps, vibration, pipe stress), cycle power to the meter, then retry the procedure.

covers are installed correctly.

• Ensure that all transmitter wiring meets

specifications and that all cable shields are properly terminated.

• Check the grounding of all compo-

nents.

• Evaluate the environment for sources of

high electromagnetic interference (EMI) and relocate the transmitter or wiring as necessary.

• Contact Micro Motion.

• Check your process conditions against

the values reported by the device.

• Check the wiring between the sensor

and the transmitter.

• Verify that internal wiring is secure and

that there are no internal electrical problems.

• Contact Micro Motion.

72 Micro Motion® LNG Series Meters

Alert number Alert title Possible cause Recommended actions

A020 Calibration Factors

Missing

A021 Transmitter/Sensor/

Software Mismatch

A027 Security Breach The transmitter has been switched

A030 Incorrect Board Type The loaded software is not compati-

A033 Insufficient Pickoff

Signal

Some calibration factors have not been entered or are incorrect.

The configured board type does not match the physical board, or the configured sensor type does not match the physical sensor.

from secure mode to unsecure mode. In unsecured mode, the transmitter configuration can be changed.

ble with the programmed board type.

The signal from the sensor pickoff(s) is insufficient. This suggests that the sensor tubes or vibrating elements are not vibrating. This alert often occurs in conjunction with Alert 102.

• Verify all of the characterization or cali-

bration parameters. See the sensor tag or the calibration sheet for your meter.

• Verify the setting of the Sensor Type pa-

rameter.

• If Sensor Type=Curved Tube, ensure that

no parameters specific to Straight Tube have been set.

• Verify all of the characterization or cali-

bration parameters. See the sensor tag or the calibration sheet for your meter.

• Ensure that the correct board is instal-

led.

• Verify the setting of the Sensor Type pa-

rameter.

• If Sensor Type=Curved Tube, ensure that

no parameters specific to Straight Tube have been set.

• Secure the transmitter by setting the

CT switch to ON.

Note that additional procedures may be required to return the device to secured mode.

• Contact Micro Motion.

• Check for air in the flow tubes, tubes

not filled, foreign material in the tubes, coating in the tubes, or other process problems.

• Check for foreign material in the proc-

ess gas or fluid, coating, or other process problems.

• Check for fluid separation by monitor-

ing the density value and comparing the results against expected density values.

• Ensure that the sensor orientation is ap-

propriate for your application. Settling from a two-phase or three-phase fluid can cause this alert even if the flow tubes are full.

Troubleshooting

Configuration and Use Manual 73

Troubleshooting

Alert number Alert title Possible cause Recommended actions

A102 Drive Overrange The drive power (current/voltage) is

at its maximum.

A104 Calibration in Pro-

gress

A105 Two-Phase Flow The line density is outside the user-

A107 Power Reset Occur-

red

N/A Density D1 Calibra-

tion in Progress

N/A Density D2 Calibra-

tion in Progress

N/A Zero Calibration in

Progress

N/A Reverse Flow Flow through the device is in the re-

A calibration procedure is in process.

defined two-phase flow limits.

The transmitter has been restarted. • No action required.

A D1 density calibration is in progress.

A D2 density calibration is in progress.

A zero calibration is in progress. • No action required.

verse direction (against the flow arrow).

• Check the drive gain and the pickoff

voltage.

• Check the wiring between the sensor

and the transmitter.

• Verify that internal wiring is secure and

that there are no internal electrical problems.

• Check for air in the flow tubes, tubes

not filled, foreign material in the tubes, coating in the tubes, or other process problems.

• Check for fluid separation by monitor-

ing the density value and comparing the results against expected density values.

• Ensure that the sensor orientation is ap-

propriate for your application. Settling from a two-phase or three-phase fluid can cause this alert even if the flow tubes are full.

• Allow the procedure to complete.

• For zero calibration, you may abort the

calibration, set Zero Time to a lower value, and restart the calibration.

• Check for two-phase flow.

• If desired, you can set Alert Severity Level

to Ignore.

• No action required.

74 Micro Motion® LNG Series Meters

10.3 Flow measurement problems

Flow measurement problems and recommended actions Table 10-2:

Problem Possible causes Recommended actions

Non-zero flow reading at no-flow conditions or at zero offset

Erratic non-zero flow rate at no-flow conditions

• Misaligned piping (especially in new instal-

lations)

• Open or leaking valve

• Incorrect sensor zero

• Leaking valve or seal

• Two-phase flow

• Plugged or coated sensor tube

• Incorrect sensor orientation

• Wiring problem

• Vibration in pipeline at rate close to sensor

tube frequency

• Damping value too low

• Mounting stress on sensor

• If the reading is not excessively high, re-

view the live zero. You may need to restore the factory zero.

• Check for open or leaking valves or seals.

• Check for mounting stress on the sensor

(e.g., sensor being used to support piping, misaligned piping).

• Contact Micro Motion.

• Verify that the sensor orientation is appro-

priate for your application (refer to the sensor installation manual).

• Check the drive gain and the pickoff volt-

age.

• If the wiring between the sensor and the

transmitter includes a 9-wire segment, verify that the 9-wire cable shields are correctly grounded.

• Check the wiring between the sensor and

the transmitter.

• For sensors with a junction box, check for

moisture in the junction box.

• Purge the sensor tubes.

• Check for open or leaking valves or seals.

• Check for sources of vibration.

• Verify damping configuration.

• Verify that the measurement units are con-

figured correctly for your application.

• Check for two-phase flow.

• Check for radio frequency interference.

• Contact Micro Motion.

Troubleshooting

Configuration and Use Manual 75

Troubleshooting

Flow measurement problems and recommended actions (continued)Table 10-2:

Problem Possible causes Recommended actions

Erratic non-zero flow rate when flow is steady

Inaccurate flow rate or batch total

• Two-phase flow

• Damping value too low

• Plugged or coated sensor tube

• Output wiring problem

• Problem with receiving device

• Wiring problem

• Inappropriate measurement unit

• Incorrect flow calibration factor

• Incorrect meter factor

• Incorrect density calibration factors

• Incorrect grounding

• Two-phase flow

• Problem with receiving device

• Incorrect sensor zero

• Verify that the sensor orientation is appro-

priate for your application (refer to the sensor installation manual).

• Check the drive gain and the pickoff volt-

age.

• If the wiring between the sensor and the

transmitter includes a 9-wire segment, verify that the 9-wire cable shields are correctly grounded.

• Check for air entrainment, tube fouling,

flashing, or tube damage.

• Check the wiring between the sensor and

the transmitter.

• For sensors with a junction box, check for

moisture in the junction box.

• Purge the sensor tubes.

• Check for open or leaking valves or seals.

• Check for sources of vibration.

• Verify damping configuration.

• Verify that the measurement units are con-

figured correctly for your application.

• Check for two-phase flow.

• Check for radio frequency interference.

• Contact Micro Motion.

• Check the wiring between the sensor and

the transmitter.

• Verify that the measurement units are con-

figured correctly for your application.

• Verify all of the characterization or calibra-

tion parameters. See the sensor tag or the calibration sheet for your meter.

• Zero the meter.

• Check the grounding of all components.

• Check for two-phase flow.

• Verify the receiving device, and the wiring

between the transmitter and the receiving device.

• Check sensor coil resistance and for shorts

to case.

• Replace the transmitter.

76 Micro Motion® LNG Series Meters

10.4 Density measurement problems

Density measurement problems and recommended actionsTable 10-3:

Problem Possible causes Recommended actions

Inaccurate density reading

Unusually high density reading

Unusually low density reading

• Problem with process fluid

• Incorrect density calibration factors

• Wiring problem

• Incorrect grounding

• Two-phase flow

• Plugged or coated sensor tube

• Incorrect sensor orientation

• RTD failure

• Physical characteristics of sensor have

changed

• Plugged or coated sensor tube

• Incorrect density calibration factors

• Incorrect temperature measurement

• RTD problem

• In high-frequency meters, this can indicate

erosion or corrosion

• In low-frequency meters, this can indicate

tube fouling

• Two-phase flow

• Ensure that all of the calibration parame-

ters have been entered correctly. See the sensor tag or the calibration sheet for your meter.

• In low-frequency meters, this can indicate

erosion or corrosion

• Check your process conditions against the

values reported by the device.

• Ensure that all of the calibration parame-

ters have been entered correctly. See the sensor tag or the calibration sheet for your meter.

• Check the wiring between the sensor and

the transmitter.

• Check the grounding of all components.

• Verify all of the characterization or calibra-

tion parameters. See the sensor tag or the calibration sheet for your meter.

• Check for two-phase flow.

• If two sensors with similar frequency are

too near each other, separate them.

• Purge the sensor tubes.

• Ensure that all of the calibration parame-

ters have been entered correctly. See the sensor tag or the calibration sheet for your meter.

• Verify all of the characterization or calibra-

tion parameters. See the sensor tag or the calibration sheet for your meter.

• Purge the sensor tubes.

• Check for coating in the flow tubes.

• Check your process conditions against the

values reported by the device.

• Check for two-phase flow.

• Verify all of the characterization or calibra-

tion parameters. See the sensor tag or the calibration sheet for your meter.

• Check the wiring between the sensor and

the transmitter.

• Check for tube erosion, especially if the

process fluid is abrasive.

Troubleshooting

Configuration and Use Manual 77

Troubleshooting

10.5 Temperature measurement problems

Temperature measurement problems and recommended actionsTable 10-4:

Problem Possible causes Recommended actions

Temperature reading significantly different from process temperature

Temperature reading slightly different from process temperature

• RTD failure

• Incorrect compensation factors

• Line temperature in bypass does not

match temperature in main line

• RTD cable length configuration is not cor-

rect

• Sensor temperature not yet equalized

• Sensor leaking heat

• Check junction box for moisture or verdi-

gris.

• Verify that the temperature compensation

factors match the value on the sensor tag or calibration sheet.

• If Alert A004, A016, or A017 is active, per-

form the actions recommended for that alert.

• Verify that the RTD cable length configura-

tion matches the actual cable length for each sensor

• If the error is within the temperature speci-

fication for the sensor, there is no problem. If the temperature measurement is outside the specification, contact Micro Motion.

• The temperature of the fluid may be

changing rapidly. Allow sufficient time for the sensor to equalize with the process fluid.

• The electrical connection between the RTD

and the sensor may be damaged. This may require replacing the sensor.

10.6 Check power supply wiring

If the power supply wiring is damaged or improperly connected, the transmitter may not receive enough power to operate properly.

Prerequisites

You will need the installation manual for your transmitter.

Procedure

1. Use a voltmeter to test the voltage at the transmitter’s power supply terminals.

• If the voltage is within the specified range, you do not have a power supply

problem.

• If the voltage is low, ensure that the power supply is adequate at the source, the

power cable is sized correctly, there is no damage to the power cable, and an appropriate fuse is installed.

78 Micro Motion® LNG Series Meters

Troubleshooting

• If there is no power, continue with this procedure.

2. Before inspecting the power supply wiring, disconnect the power source.

CAUTION!

If the transmitter is in a hazardous area, wait five minutes after disconnecting the power.

3. Ensure that the terminals, wires, and wiring compartment are clean and dry.

4. Ensure that the power supply wires are connected to the correct terminals.

5. Ensure that the power supply wires are making good contact, and are not clamped to the wire insulation.

6. Reapply power to the transmitter.

CAUTION!

If the transmitter is in a hazardous area, do not reapply power to the transmitter with the housing cover removed. Reapplying power to the transmitter while the housing cover is removed could cause an explosion.

10.7

10.8

7. Test the voltage at the terminals.

If there is no power, contact Micro Motion customer service.

Check grounding

The sensor and the transmitter must be grounded.

Prerequisites

You will need:

• Installation manual for your sensor

• Installation manual for your transmitter (remote-mount installations only)

Procedure

Refer to the sensor and transmitter installation manuals for grounding requirements and instructions.

Check for radio frequency interference (RFI)

Procedure

• Use shielded cable between the output and the receiving device.

- Terminate the shielding at the receiving device. If this is impossible, terminate

the shielding at the cable gland or conduit fitting.

Configuration and Use Manual 79

Troubleshooting

- Do not terminate the shielding inside the wiring compartment.

- 360-degree termination of shielding is unnecessary.

• Eliminate the RFI source.

10.9 Check for two-phase flow (slug flow)

Two-phase flow can cause rapid changes in the drive gain. This can cause a variety of measurement issues.

1. Check for two-phase flow alerts (e.g., A105).

If the transmitter is not generating two-phase flow alerts, two-phase flow is not the source of your problem.

2. Check the process for cavitation, flashing, or leaks.

3. Monitor the density of your process fluid output under normal process conditions.

4. Check the settings of Two-Phase Flow Low Limit, Two-Phase Flow High Limit, and Two-Phase Flow Timeout.

10.10

Tip

You can reduce the occurrence of two-phase flow alerts by setting Two-Phase Flow Low Limit to a lower value, Two-Phase Flow High Limit to a higher value, or Two-Phase Flow Timeout to a higher value.

Check the drive gain

Excessive or erratic drive gain may indicate any of a variety of process conditions or sensor problems.

To know whether your drive gain is excessive or erratic, you must collect drive gain data during the problem condition and compare it to drive gain data from a period of normal operation.

Excessive (saturated) drive gain

Table 10-5:

Possible cause Recommended actions

Sensor tubes not completely full

Plugged sensor tube Check the pickoff voltages (see Section 10.11). If either of them

Drive board or module failure Contact Micro Motion.

Possible causes and recommended actions for excessive (saturated) drive gain

Correct process conditions so that the sensor tubes are full.

are close to zero (but neither is zero), plugged tubes may be the source of your problem. Purge the tubes. In extreme cases, you may need to replace the sensor.

80 Micro Motion® LNG Series Meters

Troubleshooting

Table 10-5:

Possible causes and recommended actions for excessive (saturated) drive gain (continued)

Possible cause Recommended actions

Bent sensor tube Check the pickoff voltages (see Section 10.11). If either of them

are close to zero (but neither is zero), the sensor tubes may be bent. The sensor will need to be replaced.

Cracked sensor tube Replace the sensor.

Sensor imbalance Contact Micro Motion.

Vibrating element not free to vibrate

Open drive or left pickoff sensor coil

Flow rate out of range Ensure that the flow rate is within sensor limits.

Incorrect sensor characterization

Ensure that the vibrating element is free to vibrate.

Contact Micro Motion.

Verify the characterization or calibration parameters.

Erratic drive gain

Possible causes and recommended actions for erratic drive gainTable 10-6:

Possible cause Recommended actions

Foreign material caught in sensor tubes

• Purge the sensor tubes.

• Replace the sensor.

10.10.1 Collect drive gain data

Drive gain data can be used to diagnose a variety of process and equipment conditions. Collect drive gain data from a period of normal operation, and use this data as a baseline for troubleshooting.

Procedure

1. Navigate to the drive gain data.

2. Observe and record drive gain data over an appropriate period of time, under a variety of process conditions.

10.11

Check the pickoff voltage

If the pickoff voltage readings are unusually low, you may have any of a variety of process or equipment problems.

Configuration and Use Manual 81

Troubleshooting

To know whether your pickoff voltage is unusually low, you must collect pickoff voltage data during the problem condition and compare it to pickoff voltage data from a period of normal operation.

Possible causes and recommended actions for low pickoff voltageTable 10-7:

Possible cause Recommended actions

Faulty wiring runs between the sensor and transmitter

Process flow rate beyond the limits of the sensor

The vibrating element is not vibrating • Check for plugging or deposition.

Moisture in the sensor electronics Eliminate the moisture in the sensor electronics.

The sensor is damaged, or sensor magnets may have become demagnetized

Verify wiring between sensor and transmitter.

Verify that the process flow rate is not out of range of the sensor.

• Ensure that the vibrating element is free to vibrate

(no mechanical binding).

• Verify wiring.

• Test coils at sensor. See Section 10.12.1.

Replace the sensor.

10.11.1 Collect pickoff voltage data

Pickoff voltage data can be used to diagnose a variety of process and equipment conditions. Collect pickoff voltage data from a period of normal operation, and use this data as a baseline for troubleshooting.

Procedure

1. Navigate to the pickoff voltage data.

2. Observe and record data for both the left pickoff and the right pickoff, over an appropriate period of time, under a variety of process conditions.

10.12

Check for internal electrical problems

Shorts between sensor terminals or between the sensor terminals and the sensor case can cause the sensor to stop working.

Table 10-8:

Possible cause Recommended action

Moisture inside the sensor junction box

Liquid or moisture inside the sensor case

Possible causes and recommended actions for electrical shorts

Ensure that the junction box is dry and no corrosion is present.

Contact Micro Motion.

82 Micro Motion® LNG Series Meters

Possible causes and recommended actions for electrical shorts (continued)Table 10-8:

Possible cause Recommended action

Internally shorted feedthrough Contact Micro Motion.

Faulty cable Replace the cable.

Improper wire termination Verify wire terminations inside the sensor junction box. The

10.12.1 Check the sensor coils

Checking the sensor coils can identify electrical shorts.

Restriction

This procedure applies only to 9-wire remote-mount transmitters and remote transmitters with remote core processors.

Troubleshooting

Micro Motion document titled 9‐Wire Flowmeter Cable Prep‐ aration and Installation Guide may offer some assistance.

Procedure

1. Disconnect power to the transmitter.

CAUTION!

If the transmitter is in a hazardous area, wait 5 minutes before continuing.

2. Unplug the terminal blocks from the terminal board on the core processor.

3. Using a digital multimeter (DMM), check the pickoff coils by placing the DMM leads on the unplugged terminal blocks for each terminal pair. See Table 10‐9 for a list of the coils. Record the values.

Coils and test terminal pairsTable 10-9:

Coil Sensor model Terminal colors

Drive coil All Brown to red

Left pickoff coil (LPO) All Green to white

Right pickoff coil (RPO) All Blue to gray

Resistance temperature detector (RTD) All Yellow to violet

Lead length compensator (LLC) All except T-Series and CMF400

(see note)

Yellow to orange

Configuration and Use Manual 83

Troubleshooting

There should be no open circuits, that is, no infinite resistance readings. The left pickoff and right pickoff readings should be the same or very close (±5 Ω. If there are any unusual readings, repeat the coil resistance tests at the sensor junction box to eliminate the possibility of faulty cable. The readings for each coil pair should match at both ends.

4. Test the terminals in the sensor junction box for shorts to case.

a. Leave the terminal blocks disconnected.

b. Remove the lid of the junction box.

c. Testing one terminal at a time, place a DMM lead on the terminal and the other

lead on the sensor case.

With the DMM set to its highest range, there should be infinite resistance on each lead. If there is any resistance at all, there is a short to case.

5. Test the resistance of junction box terminal pairs.

a. Test the brown terminal against all other terminals except the red one.

b. Test the red terminal against all other terminals except the brown one.

c. Test the green terminal against all other terminals except the white one.

d. Test the white terminal against all other terminals except the green one.

e. Test the blue terminal against all other terminals except the gray one.

f. Test the gray terminal against all other terminals except the blue one.

g. Test the orange terminal against all other terminals except the yellow and violet

ones.

h. Test the yellow terminal against all other terminals except the orange and violet

ones.

i. Test the violet terminal against all other terminals except the yellow and orange

ones.

There should be infinite resistance for each pair. If there is any resistance at all, there is a short between terminals.

Postrequisites

To return to normal operation:

1. Plug the terminal blocks into the terminal board.

2. Replace the lid on the sensor junction box.

Important

When reassembling the meter components, be sure to grease all O-rings.

84 Micro Motion® LNG Series Meters

Using ProLink III with the transmitter

Appendix A Using ProLink III with the transmitter

A.1 Connect with ProLink III

A connection from ProLink III to your transmitter allows you to read process data, configure the transmitter, and perform maintenance and troubleshooting tasks.

A.1.1 Connection types supported by ProLink III

Different connection types are available for connecting from ProLink III to the transmitter. Choose the connection type appropriate to your network and the tasks you intend to perform.

The transmitter supports the following ProLink III connection types:

• Service port connections

• Modbus/RS-485 8-bit connections (Modbus RTU)

A.1.2 Connect with ProLink III to the service port

Prerequisites

• ProLink III installed and licensed on your PC

• One of the following:

- RS-232 to RS-485 signal converter

- USB to RS-485 signal converter

• An available serial port or USB port

• Adapters as required (for example, 9-pin to 25-pin)

Procedure

1. Attach the signal converter to the serial port or USB port on your PC.

2. Access the service port terminals:

a. Remove the transmitter end-cap to access the wiring compartment.

b. Loosen the screw on the Warning flap and open the power supply compartment.

3. Start ProLink III.

4. Choose Connect to Physical Device.

5. Set Protocol to Service Port.

Configuration and Use Manual 85

Using ProLink III with the transmitter

Tip

Service port connections use standard connection parameters and a standard address. You do not need to configure them here.

6. Set the PC Port value to the PC COM port that you are using for this connection.

7. Click Connect.

Need help? If an error message appears:

• Switch the leads and try again.

• Ensure that you have specified the correct port on your PC.

• Check the wiring between the PC and the transmitter.

A.1.3 Connect with ProLink III to the RS-485 port

You can connect directly to the RS-485 terminals on the transmitter or to any point on the network.

Prerequisites

• ProLink III installed and licensed on your PC

• ProLink III v3.5 installed and licensed on your PC.

• One of the following:

- RS-232 to RS-485 signal converter

- USB to RS-485 signal converter

• An available serial port or USB port

• Adapters as required (for example, 9-pin to 25-pin)

Procedure

1. Attach the signal converter to the serial port or USB port on your PC.

2. To connect over the RS-485 network:

a. Attach the leads from the signal converter to any point on the network.

b. Add resistance as necessary to achieve at least one volt across the connection

points.

3. Start ProLink III.

4. Choose Connect to Physical Device.

5. Set the connection parameters to the values configured in the transmitter.

If your transmitter has not been configured, use the default values shown here.

86 Micro Motion® LNG Series Meters

Using ProLink III with the transmitter

Default Modbus/RS-485 connection parametersTable A-1:

Parameter Default value

Protocol Modbus RTU

Baud 9600

Parity None

Stop Bits 1

Address 1 (sensor1 ), 2 (sensor2)

6. Set the PC Port value to the PC COM port that you are using for this connection.

7. Click Connect.

Need help? If an error message appears:

• Verify the Modbus address of the transmitter.

• Ensure that you have specified the correct port on your PC.

• Check the wiring between the PC and the transmitter.

• Increase or decrease resistance.

• For long-distance communication, or if noise from an external source interferes with the

signal, install 120-Ω ½-W terminating resistors in parallel with the output at both ends of the communication segment.

• Ensure that there is no concurrent Modbus communication to the transmitter.

Configuration and Use Manual 87

Using ProLink III with the transmitter

88 Micro Motion® LNG Series Meters

Appendix B Default values and ranges

B.1 Default values and ranges

The default values and ranges represent the typical factory transmitter configuration. Depending on how the transmitter was ordered, certain values may have been configured at the factory and are not represented in the default values and ranges.

Transmitter default values and rangesTable B-1:

Type Parameter Default Range Comments

Flow Flow direction Forward

Flow damping 0.64 sec 0.0 – 60.0 sec User-entered value is corrected

to nearest lower value in list of preset values.In Special mode, the preset values are 1/5 normal. For gas applications, Micro Motion recommends a minimum value of 2.56.

Flow calibration factor 1.00005.13

Mass flow units kg/min

Mass flow cutoff Sensor-specific

value set at factory

Volume flow type Liquid

Volume flow units L/s

Volume flow cutoff 0/0 L/s 0.0 – x L/s x is obtained by multiplying the

Meter factors Mass factor 1

Density factor 1

Volume factor 1

For most sensors, the typical setting is 0.05% to 0.10% of the sensor's rated maximum flow rate. For some sensors, the setting may be higher.

For some applications, such as empty-full-empty batching, a higher value is recommended. Contact MMI customer service for assistance.

flow calibration factor by 0.2, using units of L/s.

Default values and ranges

Configuration and Use Manual 89

Default values and ranges

Transmitter default values and ranges (continued)Table B-1:

Type Parameter Default Range Comments

Density Density damping 1.28 sec 0.0 – 60.0 sec User-entered value is corrected

to nearest value in list of preset values.

0.0 – 0.5 g/cm

µsec

0.0 – 10.0

g/cm

0. 0 – 10.0

g/cm

to nearest lower value in list of preset values.

for more accurate temperature reading.

Density units g/cm

Density cutoff 0.2 g/cm

D1 0 g/cm

D2 1 g/cm

K1 1000 µsec 1000 – 50,000

K2 50,000 µsec 1000 – 50,000

FD 0

Temp Coefficient 4.44

Slug flow Slug flow low limit 0.0 g/cm

Slug flow high limit 5.0 g/cm

Slug duration 0.0 sec 0.0 – 60.0 sec

Temperature Temperature damping 4.8 sec 0.0 – 80 sec User-entered value is corrected

Temperature units Deg C

Temperature calibration factor 1.00000T0.00

RTD cable length 3 m 0- 350m Enter the correct cable length

Pressure Pressure units PSI

Flow factor 0

Density factor 0

Cal pressure 0

Special units Base mass unit g

Base mass time sec

Mass flow conversion factor 1

Base volume unit L

Base volume time sec

Volume flow conversion factor 1

90 Micro Motion® LNG Series Meters

Transmitter default values and ranges (continued)Table B-1:

Type Parameter Default Range Comments

Digital communications

Fault action None

Fault timeout 0 seconds 0.0 – 60.0 sec

Modbus address 1 (sensor 1)

2 (sensor 2)

Modbus baud rate 9600 4800 to 38400

Modbus parity None • None

1 ~127, excluding 111

• Odd

• Even

Address 1 or any other modified address will always correspond to sensor1, address 2 or any other modified address will always correspond to sensor2.

Default values and ranges

Configuration and Use Manual 91

Default values and ranges

92 Micro Motion® LNG Series Meters

Default values and ranges

Configuration and Use Manual 93

Micro Motion Inc. USA

Worldwide Headquarters 7070 Winchester Circle Boulder, Colorado 80301 T +1 303-527-5200 T +1 800-522-6277 F +1 303-530-8459

www.micromotion.com

Micro Motion Europe

Emerson Automation Solutions Neonstraat 1 6718 WX Ede The Netherlands T +31 (0) 70 413 6666 F +31 (0) 318 495 556

www.micromotion.nl

*MMI-20032809*

MMI-20032809

Rev AA

2017

Micro Motion Asia

Emerson Automation Solutions 1 Pandan Crescent Singapore 128461 Republic of Singapore T +65 6777-8211 F +65 6770-8003

Micro Motion United Kingdom

Emerson Automation Solutions Emerson Process Management Limited Horsfield Way Bredbury Industrial Estate Stockport SK6 2SU U.K. T +44 0870 240 1978 F +44 0800 966 181

Micro Motion Japan

Emerson Automation Solutions 1-2-5, Higashi Shinagawa Shinagawa-ku Tokyo 140-0002 Japan T +81 3 5769-6803 F +81 3 5769-6844

The Emerson logo is a trademark and service mark of Emerson Electric Co. Micro Motion, ELITE, ProLink, MVD and MVD Direct Connect marks are marks of one of the Emerson Automation Solutions family of companies. All other marks are property of their respective owners.

Micro Motion Configuration and Use Manual: Micro Motion LNG-Series Meters Configuration and Use Manual Manuals & Guides

Specifications and Main Features

Frequently Asked Questions

User Manual

Safety messages

Emerson Flow customer service

Contents

About this manual

Meter model codes

Before you begin

1.3 Communications tools and protocols

1.4 Additional documentation

Power up the meter

Check meter status

Quick start

2.3 Make a startup connection to the transmitter

2.4 Characterize the flowmeter (if required)

2.4.1 Sensor tags

2.4.2 Density calibration parameters (D1, D2, K1, K2, FD, TC)

Verify mass flow measurement

Verify the zero

2.6.1 Verify the zero using ProLink III

Terminology used with zero verification and zero calibrationTable 2-1:

Introduction to configuration and commissioning

Default values and ranges

Restore the factory configuration

3.2 Disable write-protection on the transmitter configuration

Configure process measurement

Configure mass flow measurement

Configure Mass Flow Measurement Unit

Options for Mass Flow Measurement Unit

Define a special measurement unit for mass flow

Configure Flow Damping

Effect of Flow Damping on volume measurement

Configure Mass Flow Cutoff

Effect of Mass Flow Cutoff on volume measurement

4.2 Configure volume flow measurement for liquid applications

4.2.1 Configure Volume Flow Type for liquid applications

Configure Volume Flow Measurement Unit for liquid applications

Options for Volume Flow Measurement Unit for liquid applications

Define a special measurement unit for volume flow

4.2.3 Configure Volume Flow Cutoff

Configure gas standard volume (GSV) flow measurement

4.3.1 Configure Volume Flow Type for gas applications

Configure Standard Gas Density

4.3.3 Configure Gas Standard Volume Flow Measurement Unit

Options for Gas Standard Volume Flow Measurement Unit

Define a special measurement unit for gas standard volume flow

Configure Gas Standard Volume Flow Cutoff

Configure flow direction

Options for Flow Direction

Effect of Flow Direction on flow totals

4.5 Configure density measurement

Configure Density Measurement Unit

Options for Density Measurement Unit

4.5.2 Configure two-phase flow parameters

Detecting and reporting two-phase flow

4.5.3 Configure density damping

Effect of density damping on volume measurement

4.5.4 Configure Density Cutoff

Effect of Density Cutoff on volume measurement

4.6 Configure temperature measurement

Configure Temperature Measurement Unit

Options for Temperature Measurement Unit

4.6.2 Configure Temperature Damping

Effect of Temperature Damping on process measurement

Configure device options and preferences

Configure response time parameters

Configure Calculation Speed (Response Time)

5.2 Configure alert handling

5.2.1 Configure Fault Timeout

Configure Status Alert Severity

Status alerts and options for Status Alert Severity

5.3 Configure informational parameters

Configure the sensor index

5.3.2 Configure the RTD cable length

Configure Sensor Serial Number

Configure Sensor Material

5.3.5 Configure Sensor Liner Material

Configure Sensor Flange Type