This Micro Motion product complies with all applicable European directives when properly installed in accordance with the
instructions in this manual. Refer to the EU declaration of conformity for directives that apply to this product. The EU declaration
of conformity, with all applicable European directives, and the complete ATEX Installation Drawings and Instructions are available
on the internet at www.emerson.com or through your local Micro Motion support center.
Information affixed to equipment that complies with the Pressure Equipment Directive, can be found on the internet at
www.emerson.com.
For hazardous installations in Europe, refer to standard EN 60079-14 if national standards do not apply.
Other information
Full product specifications can be found in the product data sheet. Troubleshooting information can be found in the configuration
manual. Product data sheets and manuals are available from the Micro Motion web site at www.emerson.com.
Return policy
Follow Micro Motion procedures when returning equipment. These procedures ensure legal compliance with government
transportation agencies and help provide a safe working environment for Micro Motion employees. Micro Motion will not accept
your returned equipment if you fail to follow Micro Motion procedures.
Return procedures and forms are available on our web support site at www.emerson.com, or by phoning the Micro Motion
Customer Service department.
Emerson Flow customer service
Email:
• Worldwide: flow.support@emerson.com
• Asia-Pacific: APflow.support@emerson.com
Telephone:
North and South America
United States800-522-6277U.K.0870 240 1978Australia800 158 727
This manual helps you configure, commission, use, maintain, and troubleshoot the 9739 MVD transmitter.
Important
This manual assumes that the following conditions apply:
• The transmitter has been installed correctly and completely according to the instructions in the
transmitter installation manual
• The installation complies with all applicable safety requirements
• The user is trained in government and corporate safety standards
1.2 Supported protocols
The 9739 MVD transmitter supports the following protocols.
Communication toolSupported protocols
ProLink III• HART/RS-485
• HART/Bell 202
• Modbus/RS-485
• Service port
Field CommunicatorHART/Bell 202
For information about how to use the communication tools, see the appendices in this manual.
Tip
You may be able to use other communications tools, such as AMS Suite: Intelligent Device Manager, or the
Smart Wireless THUM™ Adapter. Use of AMS or the Smart Wireless THUM Adapter is not discussed in this
manual. For more information on the Smart Wireless THUM Adapter, refer to the documentation available at
www.emerson.com.
1.3 Related documentation
You can find all product documentation on the product documentation DVD shipped with the product or at
www.emerson.com.
See any of the following documents for more information:
• Micro Motion Model 9739 Transmitters with MVD Technology Product Data Sheet
• For hazardous area installation, see the approval documentation shipped with the transmitter, or
download the appropriate documentation from www.emerson.com
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• Sensor documentation
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2 Quick start
2.1 Power up the transmitter
The transmitter must be powered up for all configuration and commissioning tasks, or for process
measurement.
Procedure
1. Ensure that all transmitter and sensor covers and seals are closed.
DANGER
To prevent ignition of flammable or combustible atmospheres, ensure that all covers and seals are
tightly closed. For hazardous area installations, applying power while housing covers are removed or
loose can cause an explosion.
2. Turn on the electrical power at the power supply.
The transmitter will automatically perform diagnostic routines. The transmitter is self-switching and
will automatically detect the supply voltage. When using DC power, a minimum of 1.5 amps of startup
current is required. During this period, Alert 009 is active. The diagnostic routines should complete in
approximately 30 seconds. The status LED will turn green when the startup diagnostics are complete. If
the status LED exhibits different behavior, an alert is active.
Postrequisites
Although the sensor is ready to receive process fluid shortly after power-up, the electronics can take up to
10 minutes to reach thermal equilibrium. Therefore, if this is the initial startup, or if power has been off long
enough to allow components to reach ambient temperature, allow the electronics to warm up for
approximately 10 minutes before relying on process measurements. During this warm-up period, you may
observe minor measurement instability or inaccuracy.
2.2 Check meter status
Check the meter for any error conditions that require user action or that affect measurement accuracy.
Procedure
1. Wait approximately 10 seconds for the power-up sequence to complete.
Immediately after power-up, the transmitter runs through diagnostic routines and checks for error
conditions. During the power-up sequence, Alert A009 is active. This alert should clear automatically
when the power-up sequence is complete.
2. Check the status LED on the transmitter.
2.2.1 Transmitter status reported by LED
Table 2-1: Status LED states
LED behaviorAlarm conditionDescription
Solid greenNo alarmNormal operation
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Table 2-1: Status LED states (continued)
LED behaviorAlarm conditionDescription
Flashing yellowNo alarm• Zero calibration procedure is in progress
• Loop test is in progress
Solid yellowLow-severity alarmAlarm condition that will not cause measurement error
(outputs continue to report process data)
Solid redHigh-severity alarmAlarm condition that will cause measurement error
(outputs in fault)
2.3 Make a startup connection to the transmitter
For all configuration tools except the display, you must have an active connection to the transmitter to
configure the transmitter. Follow this procedure to make your first connection to the transmitter.
Procedure
Identify the connection type to use, and follow the instructions for that connection type in the appropriate
appendix. Use the default communications parameters shown in the appendix.
Communications toolConnection type to useInstructions
ProLink IIIModbus/RS-485Using ProLink III with the transmitter
Field CommunicatorHARTUsing a Field Communicator with the
transmitter
2.4 Characterize the flowmeter (if required)
Display
ProLink IIIDevice Tools→Calibration Data
Field CommunicatorConfigure→Manual Setup→Characterize
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 flowmeter 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.
• Straight-tube (T-Series)
Not available
• Curved-tube (all sensors except T-Series)
2. Set the flow characterization parameters. Be sure to include all decimal points.
• For straight-tube sensors, set FCF (Flow Cal or Flow Calibration Factor), FTG, and FFQ.
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• For curved-tube sensors, set Flow Cal (Flow Calibration Factor).
3. Set the density characterization parameters.
• For straight-tube sensors, set D1, D2, DT, DTG, K1, K2, FD, DFQ1, and DFQ2.
• For curved-tube sensors, set D1, D2, TC, K1, K2, and FD. (TC is sometimes shown as DT.)
2.4.1 Sample sensor tags
Figure 2-1: Tag on newer curved-tube sensors (all sensors except T-Series)
Figure 2-2: Tag on older straight-tube sensor (T-Series)
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Figure 2-3: Tag on newer straight-tube sensor (T-Series)
2.4.2 Flow calibration parameters (FCF, FT)
Two separate values are used to describe flow calibration: a 6-character FCF value and a 4-character FT value.
They are provided on the sensor tag.
Both values contain decimal points. The 10-character string is called either Flowcal or FCF.
If your sensor tag shows the FCF and the FT values separately and you need to enter a single value,
concatenate the two values to form the single parameter value, retaining both decimal points.
Density calibration parameters are typically on the sensor tag and the calibration certificate.
If your sensor tag does not show a D1 or D2 value:
• For D1, enter the Dens A or D1 value from the calibration certificate. This value is the line-condition
density of the low-density calibration fluid. Micro Motion uses air. If you cannot find a Dens A or D1 value,
enter 0.001 g/cm3.
• For D2, enter the Dens B or D2 value from the calibration certificate. This value is the line-condition density
of the high-density calibration fluid. Micro Motion uses water. If you cannot find a Dens B or D2 value,
enter 0.998g/cm3 .
If your sensor tag does not show a K1 or K2 value:
• For K1, enter the first 5 digits of the density calibration factor. In this sample tag, this value is shown as
12500.
• For K2, enter the second 5 digits of the density calibration factor. In this sample tag, this value is shown as
14286.
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Figure 2-4: K1, K2, and TC values in the density calibration factor
If your sensor does not show an FD value, contact customer service.
If your sensor tag does not show a DT or TC value, enter the last 4 characters of the density calibration factor.
In the sample tag shown above, the value is shown as 4.44.
Do not confuse the Meter Factor line on the pictured sensor tag with any meter factor settings discussed in
this manual.
The Meter Type value is not relevant on a 9739 MVD transmitter.
2.5 Verify mass flow measurement
Check to see that the mass flow rate reported by the transmitter is accurate. You can use any available
method.
Procedure
• Read the value for Mass Flow Rate on the transmitter display.
• Connect to the transmitter with ProLink III and read the value for Mass Flow Rate in the Process Variables
panel.
• Connect to the transmitter with the Field Communicator and read the value for Mass Flow Rate.
Postrequisites
If the reported mass flow rate is not accurate:
• Check the characterization parameters.
• Review the troubleshooting suggestions for flow measurement issues.
Related information
Flow measurement problems
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2.6 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.
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.
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.
Procedure
1. Allow the flowmeter to warm up for at least 20 minutes after applying power.
2. Run the process fluid through the sensor until the sensor temperature reaches the normal process
operating temperature.
3. Stop flow through the sensor by shutting the downstream valve, and then the upstream valve if
available.
4. Verify that the sensor is blocked in, that flow has stopped, and that the sensor is completely full of
process fluid.
5. From ProLink III, choose Device Tools→Calibration→Zero Verification and Calibration→Verify
Zero and wait until the procedure completes.
6. 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.
7. 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) Remove or reduce sources of electromechanical noise if appropriate.
d) Repeat the zero verification procedure.
e) If it fails again, zero the meter.
Postrequisites
Restore normal flow through the sensor by opening the valves.
Related information
Zero the meter
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2.6.1 Terminology used with zero verification and zero calibration
TermDefinition
ZeroIn general, the offset required to synchronize the left pickoff and the right pickoff under
conditions of zero flow. Unit = microseconds.
Factory ZeroThe zero value obtained at the factory, under laboratory conditions.
Field ZeroThe zero value obtained by performing a zero calibration outside the factory.
Prior ZeroThe 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 ZeroThe zero value stored in the transmitter, typically obtained from a zero calibration
procedure. It may also be configured manually. Also called “mechanical zero” or “stored
zero”.
Live ZeroThe real-time bidirectional mass flow rate with no flow damping or mass flow cutoff
applied. 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 StabilityA 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 CalibrationThe procedure used to determine the zero value.
Zero TimeThe time period over which the Zero Calibration procedure is performed. Unit = seconds.
Field Verification ZeroA 3-minute running average of the Live Zero value, calculated by the transmitter. Unit =
configured mass flow measurement unit.
Zero VerificationA procedure used to evaluate the stored zero and determine whether or not a field zero
can improve measurement accuracy.
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3 Introduction to configuration and
commissioning
3.1 Configuration flowchart
Use the following flowchart as a general guide to the configuration and commissioning process.
Some options may not apply to your installation. Detailed information is provided in the remainder of this
manual.
Configure process measurement
Configure mass flow
measurement
Configure volume flow
meaurement
Configure device options and
preferences
Configure display
parameters
Configure fault handling
parameters
Test and move to production
Test or tune transmitter
using sensor simulation
Back up transmitter
configuration
Volume flow type
Liquid
Configure flow direction
Configure density
measurement
Configure temperature
measurement
Configure petroleum
measurement (API)
application (if available)
Configure concentration
measurement application
(if available)
Configure pressure
compensation (optional)
Gas
Define gas properties
Configure sensor
parameters
Configure device
parameters
Integrate device with control system
Configure the mA
output(s)
Configure the frequency
output(s)
Configure the discrete
output(s)
Configure the discrete
input
Configure the mA input
Configure events
Enable write-protection on
transmitter configuration
Done
Configure digital
communications
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3.2 Default values and ranges
See Default values and ranges to view the default values and ranges for the most commonly used parameters.
3.3 Enable access to the off-line menu of the display
By default, access to the off-line menu of the display is enabled. If it is disabled, you must enable it if you want
to use the display to configure the transmitter.
Restriction
You cannot use the display to enable access to the off-line menu. You must make a connection from another
tool.
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.
OFF-LINE MAINT → CONFG → LOCK
3.5 Disable HART security
If you plan to use HART protocol to configure the device, HART security must be disabled. HART security is
disabled by default, so you may not need to do this.
Prerequisites
Check the setting of the HART security switch. You do not have to remove the housing cover to check the
setting.
Procedure
1. Power down the device.
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CAUTION
If the transmitter is in a hazardous area, you must power down the device before removing the
transmitter housing cover. Removing the housing cover while the device is powered could cause an
explosion.
2. Remove the transmitter housing cover.
3. Move the HART security switch to the OFF position.
Figure 3-1: HART security switch (on blank display)
Field CommunicatorService Tools→Maintenance→Reset/Restore→Restore Factory Configuration
Restoring the factory configuration returns the transmitter to the same configuration it had when it left the
factory. This may be useful if you experience problems during configuration.
Tip
Restoring the factory configuration is not a common action. You may want to contact customer support to
see if there is a preferred method to resolve any issues.
Not available
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20Micro Motion 9739 MVD Transmitters
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4 Configure process measurement
4.1 Configure mass flow measurement
The mass flow measurement parameters control how mass flow is measured and reported.
Field CommunicatorConfigure→Manual Setup→Measurements→Flow→Mass Flow Unit
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).
Tip
If the measurement unit you want to use is not available, you can define a special measurement unit.
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.
Label
Unit description
Grams per secondG/Sg/secg/s
Grams per minuteG/MINg/ming/min
Grams per hourG/Hg/hrg/h
Kilograms per secondKG/Skg/seckg/s
Kilograms per minuteKG/MINkg/minkg/min
Kilograms per hourKG/Hkg/hrkg/h
Kilograms per dayKG/Dkg/daykg/d
DisplayProLink IIIField Communicator
Metric tons per minuteT/MINmTon/minMetTon/min
Metric tons per hourT/HmTon/hrMetTon/h
Metric tons per dayT/DmTon/dayMetTon/d
Pounds per secondLB/Slbs/seclb/s
Pounds per minuteLB/MINlbs/minlb/min
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Label
Unit description
Pounds per hourLB/Hlbs/hrlb/h
Pounds per dayLB/Dlbs/daylb/d
Short tons (2000 pounds) per
minute
Short tons (2000 pounds) per hour ST/HsTon/hrSTon/h
Short tons (2000 pounds) per dayST/DsTon/daySTon/d
Long tons (2240 pounds) per hour LT/HlTon/hrLTon/h
Long tons (2240 pounds) per dayLT/DlTon/dayLTon/d
Special unitSPECLspecialSpcl
DisplayProLink IIIField Communicator
ST/MINsTon/minSTon/min
Define a special measurement unit for mass flow
DisplayNot available
ProLink IIIDevice Tools→Configuration→Process Measurement→Flow→Special Units
Field CommunicatorConfigure→Manual Setup→Measurements→Special Units→Mass Special Units
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.
Note
Although you cannot define a special measurement unit using the display, you can use the display to select an
existing special measurement unit, and to view process data using the special measurement unit.
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.
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.
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Defining a special measurement unit for mass flow
You want to measure mass flow in ounces per second (oz/sec).
Field CommunicatorConfigure→Manual Setup→Measurements→Flow→Flow Damping
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 0.8 seconds.
• The flow damping range is 0 to 51.2 seconds when Update Rate is set to Normal.
• The flow damping range is 0 to 10.24 seconds when Update Rate is set to Special.
Tip
• 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.
The value you enter is automatically rounded down to the nearest valid value.
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If Flow Damping is set to Normal, the valid values are: 0, 0.2, 0.4, 0.8, 1.6, 3.2, 6.4, 12.8, 25.6, and 51.2.
If Flow Damping is set to Special, the valid values are: 0, 0.04, 0.08, 0.16, 0.32, 0.64, 1.28, 2.56, 5.12, and
10.24.
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.
Interaction between Flow Damping and mA Output Damping
In some circumstances, both Flow Damping and mA Output Damping are applied to the reported mass flow
value.
Flow Damping controls the rate of change in flow process variables. mA Output Damping controls the rate
of change reported via the mA Output. If mA Output Process Variable is set to Mass Flow Rate, and both
Flow Damping and mA Output Damping are set to non-zero values, flow damping is applied first, and the
added damping calculation is applied to the result of the first calculation.
Field CommunicatorConfigure→Manual Setup→Measurements→Flow→Mass Flow Cutoff
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.
Leaving Mass Flow Cutoff at 0 is not recommended.
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.
Volume flow has a separate Volume Flow Cutoff that is not affected by the Mass Flow Cutoff value.
Interaction between Mass Flow Cutoff and mA Output Cutoff
Mass Flow Cutoff defines the lowest mass flow value that the transmitter will report as measured. mA
Output Cutoff defines the lowest flow rate that will be reported via the mA Output. If mA Output Process
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Variable is set to Mass Flow Rate, the mass flow rate reported via the mA Output is controlled by the higher of
the two cutoff values.
Mass Flow Cutoff affects all reported values and values used in other transmitter behavior (e.g., events
defined on mass flow).
mA Output Cutoff affects only mass flow values reported via the mA Output.
Cutoff interaction with mA Output Cutoff lower than Mass Flow Cutoff
Configuration:
• mA Output Process Variable: Mass Flow Rate
• Frequency Output Process Variable: Mass Flow Rate
• mA Output Cutoff: 10 g/sec
• Mass Flow Cutoff: 15 g/sec
Result: If the mass flow rate drops below 15 g/sec, mass flow will be reported as 0, and 0 will be used in all
internal processing.
Cutoff interaction with mA Output Cutoff higher than Mass Flow Cutoff
Configuration:
• mA Output Process Variable: Mass Flow Rate
• Frequency Output Process Variable: Mass Flow Rate
• mA Output Cutoff: 15 g/sec
• Mass Flow Cutoff: 10 g/sec
Result:
• If the mass flow rate drops below 15 g/sec but not below 10 g/sec:
— The mA Output will report zero flow.
— The Frequency Output will report the actual flow rate, and the actual flow rate will be used in all
internal processing.
• If the mass flow rate drops below 10 g/sec, both outputs will report zero flow, and 0 will be used in all
internal processing.
4.2 Configure volume flow measurement for liquid
applications
The volume flow measurement parameters control how liquid volume flow is measured and reported.
Restriction
You cannot implement both liquid volume flow and gas standard volume flow at the same time. Choose one
or the other.
4.2.1 Configure Volume Flow Type for liquid applications
Field CommunicatorConfigure→Manual Setup→Measurements→Gas Standard Volume→Volume Flow Type→Liquid
Volume Flow Type controls whether liquid or gas standard volume flow measurement will be used.
Restriction
Gas standard volume measurement is incompatible with some applications. Set Volume Flow Type to Liquid
if you are using any of the following applications:
• Petroleum measurement
• Concentration measurement
Procedure
Set Volume Flow Type to Liquid.
4.2.2 Configure Volume Flow Measurement Unit for liquid
Field CommunicatorConfigure→Manual Setup→Measurements→Flow→Volume Flow Unit
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.
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.
To read US gallons, select that unit from this menu. G/MIN stands for grams per minute (USGPM), not gallons
per minute. The default setting for Volume Flow Measurement Unit is l/sec (liters per second).
Tip
If the measurement unit you want to use is not available, you can define a special measurement unit.
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.
Label
Unit description
Cubic feet per secondCUFT/Sft3/secCuft/s
Cubic feet per minuteCUF/MNft3/minCuft/min
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Label
Unit description
DisplayProLink IIIField Communicator
Cubic feet per hourCUFT/Hft3/hrCuft/h
Cubic feet per dayCUFT/Dft3/dayCuft/d
Cubic meters per secondM3/Sm3/secCum/s
Cubic meters per minuteM3/MINm3/minCum/min
Cubic meters per hourM3/Hm3/hrCum/h
Cubic meters per dayM3/Dm3/dayCum/d
U.S. gallons per secondUSGPSUS gal/secgal/s
U.S. gallons per minuteUSGPMUS gal/mingal/min
U.S. gallons per hourUSGPHUS gal/hrgal/h
U.S. gallons per dayUSGPDUS gal/daygal/d
Million U.S. gallons per dayMILG/Dmil US gal/dayMMgal/d
Liters per secondL/Sl/secL/s
Liters per minuteL/MINl/minL/min
Liters per hourL/Hl/hrL/h
Million liters per dayMILL/Dmil l/dayML/d
Imperial gallons per secondUKGPSImp gal/secImpgal/s
Imperial gallons per minuteUKGPMImp gal/minImpgal/min
Imperial gallons per hourUKGPHImp gal/hrImpgal/h
Imperial gallons per dayUKGPDImp gal/dayImpgal/d
(1)
(1)
(1)
(1)
(2)
(2)
(2)
(2)
BBL/Sbarrels/secbbl/s
BBL/MNbarrels/minbbl/min
BBL/Hbarrels/hrbbl/h
BBL/Dbarrels/daybbl/d
BBBL/SBeer barrels/secbbbl/s
BBBL/MNBeer barrels/minbbbl/min
BBBL/HBeer barrels/hrbbbl/h
BBBL/DBeer barrels/daybbbl/d
Barrels per second
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 unitSPECLspecialSpcl
(1) Unit based on oil barrels (42 U.S. gallons).
(2) Unit based on U.S. beer barrels (31 U.S. gallons).
Define a special measurement unit for volume flow
Display
ProLink IIIDevice Tools→Configuration→Process Measurement→Flow→Special Units
Not available
Configuration and Use Manual27
Configure process measurementConfiguration and Use Manual
June 2019MMI-20016855
Field CommunicatorConfigure→Manual Setup→Measurements→Special Units→Volume Special Units
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.
Note
Although you cannot define a special measurement unit using the display, you can use the display to select an
existing special measurement unit, and to view process data using the special measurement unit.
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.
The original volume flow rate value is divided by this conversion factor.
5. Set Volume Flow Label to the name you want to use for the volume flow unit.
6. Set Volume Total Label to the name you want to use for the volume total and volume 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.
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:
a. 1 gal/sec = 8 pints/sec
b. Volume Flow Conversion Factor = 1 ÷ 8 = 0.1250
4. Set Volume Flow Conversion Factor to 0.1250.
5. Set Volume Flow Label to pints/sec.
6. Set Volume Total Label to pints.
4.2.3 Configure Volume Flow Cutoff
Display
28Micro Motion 9739 MVD Transmitters
Not available
Configuration and Use ManualConfigure process measurement
Field CommunicatorConfigure→Manual Setup→Measurements→Flow→Volume Flow Cutoff
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. Leaving the
volume flow cutoff at 0 is not recommended.
Interaction between Volume Flow Cutoff and mAO Cutoff
Volume Flow Cutoff defines the lowest liquid volume flow value that the transmitter will report as measured.
mAO Cutoff defines the lowest flow rate that will be reported via the mA Output. If mA Output Process
Variable is set to Volume Flow Rate, the volume flow rate reported via the mA Output is controlled by the
higher of the two cutoff values.
Volume Flow Cutoff affects both the volume flow values reported via the outputs and the volume flow values
used in other transmitter behavior (e.g., events defined on the volume flow).
mAO Cutoff affects only flow values reported via the mA Output.
Cutoff interaction with mAO Cutoff lower than Volume Flow Cutoff
Configuration:
• mA Output Process Variable: Volume Flow Rate
• Frequency Output Process Variable: Volume Flow Rate
• AO Cutoff: 10 l/sec
• Volume Flow Cutoff: 15 l/sec
Result: If the volume flow rate drops below 15 l/sec, volume flow will be reported as 0, and 0 will be used in all
internal processing.
Cutoff interaction with mAO Cutoff higher than Volume Flow Cutoff
Configuration:
• mA Output Process Variable: Volume Flow Rate
• Frequency Output Process Variable: Volume Flow Rate
• AO Cutoff: 15 l/sec
• Volume Flow Cutoff: 10 l/sec
Result:
• If the volume flow rate drops below 15 l/sec but not below 10 l/sec:
— The mA Output will report zero flow.
— The Frequency Output will report the actual flow rate, and the actual flow rate will be used in all
internal processing.
Configuration and Use Manual29
Configure process measurementConfiguration and Use Manual
June 2019MMI-20016855
• If the volume flow rate drops below 10 l/sec, both outputs will report zero flow, and 0 will be used in all
internal processing.
4.3 Configure GSV flow measurement
The gas standard volume (GSV) flow measurement parameters control how volume flow is measured and
reported in a gas application.
Restriction
You cannot implement both liquid volume flow and gas standard volume flow at the same time. Choose one
or the other.
4.3.1 Configure Volume Flow Type for gas applications
DisplayOFF-LINE MAINT→OFF-LINE CONFG→VOL→VOL TYPE GAS
Field CommunicatorConfigure→Manual Setup→Measurements→Gas Standard Volume→Volume Flow Type→GSV
Volume Flow Type controls whether liquid or gas standard volume flow measurement is used.
Restriction
Gas standard volume measurement is incompatible with some applications. Set Volume Flow Type to Liquid
if you are using any of the following applications:
Field CommunicatorConfigure→Manual Setup→Measurements→Gas Standard Volume→Gas Density
The Standard Density of Gas value is the gas density at standard reference conditions. Use it to convert the
measured mass flow data to volume flow at reference conditions.
Prerequisites
Not available
Ensure that Density Measurement Unit is set to the measurement unit you want to use for Standard Densityof Gas.
Procedure
Set Standard Gas Density to the standard reference density of the gas you are measuring.
30Micro Motion 9739 MVD Transmitters
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