Micro Motion® Model 1500 Transmitters with
Analog Outputs
Configuration and Use Manual
Page 2
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.
Appendix FNE 53 history ..............................................................................................................245
F.1NE 53 history ...........................................................................................................................245
Index ................................................................................................................................................249
Configuration and Use Manual v
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Contents
viMicro Motion® Model 1500 Transmitters with Analog Outputs
Page 9
Part I
Getting Started
Chapters covered in this part:
Before you begin
•
Quick start
•
Getting Started
Configuration and Use Manual 1
Page 10
Getting Started
2Micro Motion® Model 1500 Transmitters with Analog Outputs
Page 11
1Before you begin
Topics covered in this chapter:
About this manual
•
Transmitter model code
•
Communications tools and protocols
•
Additional documentation and resources
•
1.1About this manual
This manual provides information to help you configure, commission, use, maintain, and
troubleshoot the Micro Motion Model 1500 transmitter.
Important
This manual assumes that the transmitter has been installed correctly and completely, according to
the instructions in the transmitter installation manual, and that the installation complies with all
applicable safety requirements.
Before you begin
1.2Transmitter model code
Your transmitter can be identified by the model number on the transmitter tag.
The transmitter has a model number of the following form:
1500D**A******
D
A
DIN rail–mount
Analog outputs option board
1.3Communications tools and protocols
You must have a communications tool to interface with the transmitter. Several different
communications tools and protocols are supported. You may use different tools in
different locations or for different tasks.
Configuration and Use Manual 3
Page 12
Before you begin
Communications tools, protocols, and related informationTable 1-1:
Communications toolSupported protocolsScopeIn this manualFor more information
ProLink II• HART/Bell 202
• Modbus/RS-485
• Service port
ProLink III• HART/Bell 202
• Modbus/RS-485
• Service port
Field Communicator
HART/Bell 202Complete configuration
Complete configuration
and commissioning
Complete configuration
and commissioning
and commissioning
Basic user information.
See Appendix A.
Basic user information.
See Appendix B.
Basic user information.
See Appendix C.
User manual
• Installed with soft-
ware
• On Micro Motion
user documentation
CD
• On Micro Motion
web site (www.mi-
cromotion.com
User manual
• Installed with soft-
ware
• On Micro Motion
user documentation
CD
• On Micro Motion
web site (www.mi-
cromotion.com
User manual on
Micro Motion web site
(www.micromo-
tion.com
Tip
You may be able to use other communications tools from Emerson Process Management, such as
AMS Suite: Intelligent Device Manager, or the Smart Wireless THUM™ Adapter. Use of AMS or the
Smart Wireless THUM Adapter is not discussed in this manual. The AMS interface is similar to the
ProLink II interface. For more information on the Smart Wireless THUM Adapter, refer to the
documentation available at www.micromotion.com.
1.4Additional documentation and resources
Micro Motion provides additional documentation to support the installation and operation
of the transmitter.
Additional documentation and resourcesTable 1-2:
TopicDocument
SensorSensor documentation
Transmitter installation
Micro Motion Model 1500 and Model 2500 Transmitters: Installation Man‐
ual
4Micro Motion® Model 1500 Transmitters with Analog Outputs
Page 13
Additional documentation and resources (continued)Table 1-2:
TopicDocument
Hazardous area installation
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 or on the Micro Motion user documentation CD.
Before you begin
Configuration and Use Manual 5
Page 14
Before you begin
6Micro Motion® Model 1500 Transmitters with Analog Outputs
Page 15
2Quick start
Topics covered in this chapter:
Power up the transmitter
•
Check flowmeter status
•
Make a startup connection to the transmitter
•
Characterize the flowmeter (if required)
•
Verify mass flow measurement
•
Verify the zero
•
2.1Power up the transmitter
The transmitter must be powered up for all configuration and commissioning tasks, or for
process measurement.
1.
Ensure that all transmitter and sensor covers and seals are closed.
Quick start
CAUTION!
To prevent ignition of flammable or combustible atmospheres, ensure that all covers
and seals are tightly closed. For hazardous area installations, applying power while
housing covers are removed or loose can cause an explosion.
2.Turn on the electrical power at the power supply.
The transmitter will automatically perform diagnostic routines. During this period,
Alarm 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 alarm condition is present.
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 is 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.
2.2Check flowmeter status
Check the flowmeter 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.
Configuration and Use Manual 7
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Quick start
Immediately after power-up, the transmitter runs through diagnostic routines and
checks for error conditions. During the power-up sequence, Alarm A009 is active.
This alarm should clear automatically when the power-up sequence is complete.
2.Check the status LED on the transmitter.
Transmitter status reported by status LEDTable 2-1:
LED stateDescriptionRecommendation
GreenNo alarms are active. You can continue with
configuration or process measurement.
YellowOne or more low-severity alarms are active.A low-severity alarm condition does not affect
RedOne or more high-severity alarms are active.A high-severity alarm condition affects meas-
Continue with configuration or process measurement.
measurement accuracy or output behavior.
You can continue with configuration or process measurement. If you choose, you can identify and resolve the alarm condition.
urement accuracy and output behavior. Resolve the alarm condition before continuing.
Postrequisites
For information on viewing the list of active alarms, see Section 8.4.
For information on individual alarms and suggested resolutions, see Section 10.2.
2.3Make a startup connection to the transmitter
To configure the transmitter, you must have an active connection from a communications
tool. Follow this procedure to make your first connection to the transmitter.
Identify the connection type to use, and follow the instructions for that connection type in
the appropriate appendix. Use the default communications parameters shown in the
appendix.
Communications toolConnection type to useInstructions
ProLink IIModbus/RS-485Appendix A
ProLink IIIModbus/RS-485Appendix B
Field CommunicatorHARTAppendix C
Postrequisites
(Optional) Change the communications parameters to site-specific values.
To change the communications parameters using ProLink II:
8Micro Motion® Model 1500 Transmitters with Analog Outputs
Page 17
•To change the protocol, baud rate, parity, or stop bits, choose ProLink > Configuration >
RS-485.
•To change the address, choose ProLink > Configuration > Device.
To change the communications parameters using ProLink III, choose Device Tools >
Configuration > Communications.
To change the communications parameters using the Field Communicator, choose On-LineMenu > Configure > Manual Setup > Inputs/Outputs > Communications.
Important
If you are changing communications parameters for the connection type that you are using, you will
lose the connection when you write the parameters to the transmitter. Reconnect using the new
parameters.
2.4Characterize the flowmeter (if required)
Quick start
ProLink II• ProLink > Configuration > Device > Sensor Type
• ProLink > Configuration > Flow
• ProLink > Configuration > Density
• ProLink > Configuration > T Series
ProLink IIIDevice Tools > Calibration Data
Field Communicator Configure > Manual Setup > Characterize
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 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)
• 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.
Configuration and Use Manual 9
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Quick start
• 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.)
2.4.1Sources and formats for characterization parameters
Different sensor tags display characterization parameters differently. On older sensors, the
sensor tag may not contain all the required parameters.
Sample sensor tags
Sample sensor tags are shown in the following illustrations:
•Older curved-tube sensors (all sensors except T-Series): see Figure 2‐1
•Newer curved-tube sensors (all sensors except T-Series): see Figure 2‐2
•Older straight-tube sensors (T-Series): see Figure 2‐3
•Newer straight-tube sensors (T-Series): see Figure 2‐4
Tag on older curved-tube sensors (all sensors except T-Series)Figure 2-1:
10Micro Motion® Model 1500 Transmitters with Analog Outputs
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Quick start
Tag on newer curved-tube sensors (all sensors except T-Series)Figure 2-2:
Tag on older straight-tube sensor (T-Series)Figure 2-3:
Tag on newer straight-tube sensor (T-Series)Figure 2-4:
Configuration and Use Manual 11
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Quick start
Density calibration parameters (D1, D2, K1, K2, FD, DT, TC)
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 0.998 g/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 the sample tag, this
value is shown as 12500 (see Figure 2‐1).
•For K2, enter the second 5 digits of the density calibration factor. In the sample tag,
this value is shown as 14286 (see Figure 2‐1).
If your sensor does not show an FD value, contact Micro Motion customer service.
If your sensor tag does not show a DT or TC value, enter the last 3 digits of the density
calibration factor. In the sample tag, this value is shown as 4.44 (see Figure 2‐1).
Flow calibration parameters (FCF, FT)
Two separate values are used to describe flow calibration: a 6-character FCF value and a 4character FT value. Both values contain decimal points. During characterization, these may
be entered as two values or as a single 10-character string. 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.
If your sensor tag shows a concatenated Flowcal or FCF value and you need to enter the FCF
and the FT values separately, split the concatenated value:
•FCF = The first 6 characters, including the decimal point
•FT = The last 4 characters, including the decimal point
Example: Concatenating FCF and FT
FCF = x.xxxx
FT = y.yy
Flow calibration parameter: x.xxxxy.yy
Example: Splitting the concatenated Flowcal or FCF value
Flow calibration parameter: x.xxxxy.yy
FCF = x.xxxx
FT = y.yy
12Micro Motion® Model 1500 Transmitters with Analog Outputs
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2.5Verify 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 II and read the value for Mass Flow Rate in the
Process Variables window (ProLink > Process Variables).
•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 in the Process Variables menu (On-Line Menu > Overview > Primary Purpose
Variables).
Postrequisites
If the reported mass flow rate is not accurate:
•Check the characterization parameters.
•Review the troubleshooting suggestions for flow measurement issues. See
Section 10.3.
Quick start
2.6Verify 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.
2.6.1Verify the zero using ProLink II
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 flowmeter 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 II v2.94 or later
Configuration and Use Manual 13
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Quick start
Important
Do not verify the zero or zero the flowmeter if a high-severity alarm is active. Correct the problem,
then verify the zero or zero the flowmeter. You may verify the zero or zero the flowmeter if a lowseverity alarm is active.
Procedure
1.Prepare the flowmeter:
a. Allow the flowmeter 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 ProLink > 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 flowmeter.
For instructions on zeroing the flowmeter, see Section 9.3.
Postrequisites
Restore normal flow through the sensor by opening the valves.
2.6.2Verify 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 flowmeter 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 v1.0 with Patch Build 31, or a later release
14Micro Motion® Model 1500 Transmitters with Analog Outputs
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Quick start
Important
Do not verify the zero or zero the flowmeter if a high-severity alarm is active. Correct the problem,
then verify the zero or zero the flowmeter. You may verify the zero or zero the flowmeter if a lowseverity alarm is active.
Procedure
1.Prepare the flowmeter:
a. Allow the flowmeter 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 flowmeter.
For instructions on zeroing the flowmeter, see Section 9.3.
Postrequisites
Restore normal flow through the sensor by opening the valves.
2.6.3Terminology used with zero verification and zero
calibration
Terminology used with zero verification and zero calibrationTable 2-2:
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 proce-
dure. It may also be configured manually. Also called “mechanical zero” or “stored zero.”
Configuration and Use Manual 15
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Quick start
Terminology used with zero verification and zero calibration (continued)Table 2-2:
TermDefinition
Live ZeroThe 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 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.
16Micro Motion® Model 1500 Transmitters with Analog Outputs
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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
•
Completing the configuration
•
Configuration and Use Manual 17
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Configuration and commissioning
18Micro Motion® Model 1500 Transmitters with Analog Outputs
Page 27
Introduction to configuration and commissioning
3Introduction to configuration and
commissioning
Topics covered in this chapter:
Configuration flowchart
•
Default values and ranges
•
Disable write‐protection on the transmitter configuration
•
Restore the factory configuration
•
3.1Configuration 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. If you are using the Weights & Measures application, additional
configuration and setup are required.
Configuration and Use Manual 19
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Introduction to configuration and commissioning
Configuration flowchartFigure 3-1:
Configure process measurement
Configure device options and
preferences
Test and move to production
Configure mass flow
measurement
Configure volume flow
meaurement
Volume flow type
Liquid
Configure flow direction
Configure density
measurement
Configure temperature
measurement
Gas
Define gas properties
Configure fault handling
parameters
Configure sensor
parameters
Configure device
parameters
Integrate device with control system
Configure the channels
Configure the mA
output(s)
Configure the frequency
output(s)
Test or tune transmitter
using sensor simulation
Back up transmitter
configuration
Enable write-protection on
transmitter configuration
Done
Configure pressure
compensation (optional)
Configure the discrete
output(s)
Configure events
Configure digital
communications
20Micro Motion® Model 1500 Transmitters with Analog Outputs
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Introduction to configuration and commissioning
3.2Default values and ranges
See Section D.1 to view the default values and ranges for the most commonly used
parameters.
3.3Disable write-protection on the transmitter
configuration
Field Communicator Configure > Manual Setup > Info Parameters > Transmitter Info > Write Protect
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.
ProLink IIIDevice Tools > Configuration Transfer > Restore Factory Configuration
Field Communicator
Overview
Restoring the factory configuration returns the transmitter to a known operational
configuration. This may be useful if you experience problems during configuration.
Tip
Restoring the factory configuration is not a common action. You may want to contact Micro Motion
to see if there is a preferred method to resolve any issues.
Not available
Configuration and Use Manual 21
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Introduction to configuration and commissioning
22Micro Motion® Model 1500 Transmitters with Analog Outputs
Page 31
Configure process measurement
4Configure 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
•
Configure pressure compensation
•
4.1Configure 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
•
4.1.1Configure Mass Flow Measurement Unit
ProLink IIProLink > Configuration > Flow > Mass Flow Units
ProLink IIIDevice Tools > Configuration > Process Measurement > Flow
Field Communicator Configure > Manual Setup > Measurements > Flow > Mass Flow Unit
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).
Tip
If the measurement unit you want to use is not available, you can define a special measurement unit.
Configuration and Use Manual 23
Page 32
Configure process measurement
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.
Options for Mass Flow Measurement UnitTable 4-1:
Unit descriptionLabel
ProLink IIProLink IIIField Communicator
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
g/secg/secg/s
g/ming/ming/min
g/hrg/hrg/h
kg/seckg/seckg/s
kg/minkg/minkg/min
kg/hrkg/hrkg/h
kg/daykg/daykg/d
mTon/minmTon/minMetTon/min
mTon/hrmTon/hrMetTon/h
mTon/daymTon/dayMetTon/d
lbs/seclbs/seclb/s
lbs/minlbs/minlb/min
lbs/hrlbs/hrlb/h
lbs/daylbs/daylb/d
sTon/minsTon/minSTon/min
sTon/hrsTon/hrSTon/h
sTon/daysTon/daySTon/d
lTon/hrlTon/hrLTon/h
lTon/daylTon/dayLTon/d
specialspecialSpcl
Define a special measurement unit for mass flow
ProLink IIProLink > Configuration > Special Units
ProLink IIIDevice Tools > Configuration > Process Measurement > Flow > Special Units
Field Communicator Configure > Manual Setup > Measurements > Special Units > Mass Special Units
24Micro Motion® Model 1500 Transmitters with Analog Outputs
Page 33
Configure process measurement
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.
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
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.
Example: Defining a special measurement unit for mass flow
You want to measure mass flow in ounces per second (oz/sec).
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 reported process variable. At the end of the interval, the reported process variable
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 range depends on the core processor type and the
setting of Update Rate, as shown in the following table.
Core processor type
Standard
EnhancedNot applicable0 to 51.2 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.
• 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.
Update Rate settingFlow Damping range
Normal
Special
0 to 51.2 seconds
0 to 10.24 seconds
The value you enter is automatically rounded down to the nearest valid value. Valid
damping values are shown in the following table.
26Micro Motion® Model 1500 Transmitters with Analog Outputs
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Configure process measurement
Valid values for Flow DampingTable 4-2:
Core processor type
Standard
EnhancedNot applicable0, 0.2, 0.4, 0.8, ... 51.2
Update Rate setting
Normal
Special
Valid damping values
0, 0.2, 0.4, 0.8, ... 51.2
0, 0.04, 0.08, 0.16, ... 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 Added Damping
In some circumstances, both Flow Damping and Added Damping are applied to the reported
mass flow value.
Flow Damping controls the rate of change in flow process variables. Added Damping controls
the rate of change reported via the mA output. If mA Output Process Variable is set to MassFlow Rate, and both Flow Damping and Added 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.
4.1.3Configure Mass Flow Cutoff
ProLink IIProLink > Configuration > Flow > Mass Flow Cutoff
ProLink IIIDevice Tools > Configuration > Process Measurement > Flow
Field Communicator Configure > Manual Setup > Measurements > Flow > Mass Flow Cutoff
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 setting is 0.05% of the sensor's rated maximum flow rate or a
value below the highest expected flow rate. Do not set Mass Flow Cutoff to 0.0 g/sec.
Configuration and Use Manual 27
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Configure process measurement
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.
Interaction between Mass Flow Cutoff and AO Cutoff
Mass Flow Cutoff defines the lowest mass flow value that the transmitter will report as
measured. AO Cutoff defines the lowest flow rate that will be reported via the mA output. If
mA Output Process 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).
AO Cutoff affects only mass flow values reported via the mA output.
Example: Cutoff interaction with AO Cutoff lower than Mass Flow Cutoff
Configuration:
•mA Output Process Variable: Mass Flow Rate
•Frequency Output Process Variable: Mass Flow Rate
•AO 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.
Example: Cutoff interaction with AO Cutoff higher than Mass Flow Cutoff
Configuration:
•mA Output Process Variable: Mass Flow Rate
•Frequency Output Process Variable: Mass Flow Rate
•AO 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.
28Micro Motion® Model 1500 Transmitters with Analog Outputs
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Configure process measurement
4.2Configure 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.
4.2.1Configure Volume Flow Type for liquid applications
ProLink IIIDevice Tools > Configuration > Process Measurement > Flow
Field Communicator Configure > Manual Setup > Measurements > GSV > Volume Flow Type > Liquid
Overview
Volume Flow Type controls whether liquid or gas standard volume flow measurement will be
used.
Procedure
Set Volume Flow Type to Liquid.
4.2.2Configure Volume Flow Measurement Unit for liquid
applications
ProLink IIProLink > Configuration > Flow > Vol Flow Units
ProLink IIIDevice Tools > Configuration > Process Measurement > Flow
Field Communicator Configure > Manual Setup > Measurements > Flow > Volume Flow Unit
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 29
Page 38
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).
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.
Options for Volume Flow Measurement Unit for liquid applicationsTable 4-3:
Unit descriptionLabel
ProLink IIProLink IIIField Communicator
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
ft3/secft3/secCuft/s
ft3/minft3/minCuft/min
ft3/hrft3/hrCuft/h
ft3/dayft3/dayCuft/d
m3/secm3/secCum/s
m3/minm3/minCum/min
m3/hrm3/hrCum/h
m3/daym3/dayCum/d
US gal/secUS gal/secgal/s
US gal/minUS gal/mingal/min
US gal/hrUS gal/hrgal/h
US gal/dayUS gal/daygal/d
mil US gal/daymil US gal/dayMMgal/d
l/secl/secL/s
l/minl/minL/min
l/hrl/hrL/h
mil l/daymil l/dayML/d
Imp gal/secImp gal/secImpgal/s
30Micro Motion® Model 1500 Transmitters with Analog Outputs
Page 39
Options for Volume Flow Measurement Unit for liquid applications (continued)Table 4-3:
Unit descriptionLabel
ProLink IIProLink IIIField Communicator
Imperial gallons per minute
Imperial gallons per hour
Imperial gallons per day
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
(1)
(1)
(1)
(1)
(2)
(2)
(2)
(2)
Special unit
Imp gal/minImp gal/minImpgal/min
Imp gal/hrImp gal/hrImpgal/h
Imp gal/dayImp gal/dayImpgal/d
barrels/secbarrels/secbbl/s
barrels/minbarrels/minbbl/min
barrels/hrbarrels/hrbbl/h
barrels/daybarrels/daybbl/d
Beer barrels/secBeer barrels/secbbbl/s
Beer barrels/minBeer barrels/minbbbl/min
Beer barrels/hrBeer barrels/hrbbbl/h
Beer barrels/dayBeer barrels/daybbbl/d
specialspecialSpcl
Configure process measurement
Define a special measurement unit for volume flow
ProLink IIProLink > Configuration > Special Units
ProLink IIIDevice Tools > Configuration > Process Measurement > Flow > Special Units
Field Communicator Configure > Manual Setup > Measurements > Special Units > Volume Special Units
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
Specify Base Volume Unit.
1.
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:
(1) Unit based on oil barrels (42 U.S. gallons).
(2)
Unit based on U.S. beer barrels (31 U.S. gallons).
Configuration and Use Manual 31
Page 40
Configure process measurement
4.Enter Volume Flow 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
The special measurement unit is stored in the transmitter. You can configure the
transmitter to use the special measurement unit at any time.
Example: Defining a special measurement unit for volume flow
You want to measure volume flow in pints per second (pints/sec).
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.
32Micro Motion® Model 1500 Transmitters with Analog Outputs
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Configure process measurement
Interaction between Volume Flow Cutoff and AO Cutoff
Volume Flow Cutoff defines the lowest liquid volume flow value that the transmitter will
report as measured. AO 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).
AO Cutoff affects only flow values reported via the mA output.
Example: Cutoff interaction with AO 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.
Example: Cutoff interaction with AO 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.
•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.
4.3Configure gas standard volume (GSV) flow
measurement
The gas standard volume (GSV) flow measurement parameters control how gas standard
volume flow is measured and reported.
Configuration and Use Manual 33
Page 42
Configure process measurement
The GSV flow measurement parameters include:
Volume Flow Type
•
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.
4.3.1Configure Volume Flow Type for gas applications
ProLink IIProLink > Configuration > Flow > Vol Flow Type
ProLink IIIDevice Tools > Configuration > Process Measurement > Flow
Field Communicator Configure > Manual Setup > Measurements > GSV > Volume Flow Type
Overview
Volume Flow Type controls whether liquid or gas standard volume flow measurement is
used.
Procedure
Set Volume Flow Type to Gas Standard Volume.
4.3.2Configure Standard Gas Density
ProLink IIProLink > Configuration > Flow > Std Gas Density
ProLink IIIDevice Tools > Configuration > Process Measurement > Flow
Field Communicator Configure > Manual Setup > Measurements > GSV > Gas Ref Density
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.
34Micro Motion® Model 1500 Transmitters with Analog Outputs
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Configure process measurement
Note
ProLink II and ProLink III provide a guided method that you can use to calculate the standard density
of your gas, if you do not know it.
4.3.3Configure Gas Standard Volume Flow Measurement Unit
ProLink IIProLink > Configuration > Flow > Std Gas Vol Flow Units
ProLink IIIDevice Tools > Configuration > Process Measurement > Flow
Field Communicator Configure > Manual Setup > Measurements > GSV > GSV Flow Unit
Overview
Gas Standard Volume Flow Measurement Unit specifies 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 Gas Standard Volume Measurement UnitTable 4-4:
Unit descriptionLabel
ProLink IIProLink IIIField Communicator
Normal cubic meters per second
Normal cubic meters per minute
Normal cubic meters per hour
Normal cubic meters per day
Nm3/secNm3/secNm3/sec
Nm3/minNm3/secNm3/min
Nm3/hrNm3/hrNm3/hr
Nm3/dayNm3/dayNm3/day
Configuration and Use Manual 35
Page 44
Configure process measurement
Options for Gas Standard Volume Measurement Unit (continued)Table 4-4:
Unit descriptionLabel
ProLink IIProLink IIIField Communicator
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
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
NLPSNLPSNLPS
NLPMNLPMNLPM
NLPHNLPHNLPH
NLPDNLPDNLPD
SCFSSCFSSCFS
SCFMSCFMSCFM
SCFHSCFHSCFH
SCFDSCFDSCFD
Sm3/SSm3/secSm3/sec
Sm3/minSm3/minSm3/min
Sm3/hrSm3/hrSm3/hr
Sm3/daySm3/daySm3/day
SLPSSLPSSLPS
SLPMSLPMSLPM
SLPHSLPHSLPH
SLPDSLPDSLPD
specialspecialSpecial
Define a special measurement unit for gas standard volume
flow
ProLink IIProLink > Configuration > Special Units
ProLink IIIDevice Tools > Configuration > Process Measurement > Flow > Special Units
Field Communicator Configure > Manual Setup > Measurements > Special Units > Special GSV Units
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
Specify Base Gas Standard Volume Unit.
1.
36Micro Motion® Model 1500 Transmitters with Analog Outputs
Page 45
Configure process measurement
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:
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.
5.Set Gas Standard Volume Flow Label to the name you want to use for the gas standard
volume flow unit.
6.Set Gas Standard Volume Total Label to the name you want to use for the gas standard
volume total and gas standard 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.
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:
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.Set Gas Standard Volume Flow Conversion Factor to 0.001.
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.
Configuration and Use Manual 37
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Configure process measurement
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.
Interaction between Gas Standard Volume Flow Cutoff and
AO Cutoff
Gas Standard Volume Flow Cutoff defines the lowest Gas Standard Volume flow value that the
transmitter will report as measured. AO Cutoff defines the lowest flow rate that will be
reported via the mA output. If mA Output Process Variable is set to Gas Standard Volume FlowRate, the volume flow rate reported via the mA output is controlled by the higher of the
two cutoff values.
Gas Standard Volume Flow Cutoff affects both the gas standard volume flow values reported
via outputs and the gas standard volume flow values used in other transmitter behavior
(e.g., events defined on gas standard volume flow).
AO Cutoff affects only flow values reported via the mA output.
Example: Cutoff interaction with AO Cutoff lower than Gas Standard Volume Flow
Cutoff
Configuration:
•mA Output Process Variable for the primary mA output: Gas Standard Volume Flow Rate
•Frequency Output Process Variable: Gas Standard Volume Flow Rate
•AO Cutoff for the primary mA output: 10 SLPM (standard liters per minute)
•Gas Standard Volume Flow Cutoff: 15 SLPM
Result: If the gas standard volume flow rate drops below 15 SLPM, the volume flow will be
reported as 0, and 0 will be used in all internal processing.
Example: Cutoff interaction with AO Cutoff higher than Gas Standard Volume Flow
Cutoff
Configuration:
•mA Output Process Variable for the primary mA output: Gas Standard Volume Flow Rate
•Frequency Output Process Variable: Gas Standard Volume Flow Rate
•AO Cutoff for the primary mA output: 15 SLPM (standard liters per minute)
•Gas Standard Volume Flow Cutoff: 10 SLPM
Result:
•If the gas standard volume flow rate drops below 15 SLPM but not below 10 SLPM:
-The primary mA output will report zero flow.
38Micro Motion® Model 1500 Transmitters with Analog Outputs
Page 47
-The frequency output will report the actual flow rate, and the actual flow rate will
be used in all internal processing.
•If the gas standard volume flow rate drops below 10 SLPM, both outputs will report
zero flow, and 0 will be used in all internal processing.
4.4Configure Flow Direction
ProLink IIProLink > Configuration > Flow > Flow Direction
ProLink IIIDevice Tools > Configuration > Process Measurement > Flow
Field Communicator Configure > Manual Setup > Measurements > Flow > Flow Direction
Overview
Flow Direction controls how forward flow and reverse flow affect flow measurement and
reporting.
Configure process measurement
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.
4.4.1Options for Flow Direction
Options for Flow DirectionTable 4-5:
Flow Direction settingRelationship to Flow Direction ar-
ProLink IIProLink IIIField Communicator
ForwardForwardForward
ReverseReverseReverse
Absolute ValueAbsolute ValueAbsolute Value
row on sensor
Appropriate when the Flow Direction
arrow is in the same direction as the
majority of flow.
Appropriate when the Flow Direction
arrow is in the same direction as the
majority of flow.
Flow Direction arrow is not relevant.
Configuration and Use Manual 39
Page 48
Configure process measurement
Options for Flow Direction (continued)Table 4-5:
Flow Direction settingRelationship to Flow Direction ar-
Flow Direction affects how the transmitter reports flow values via the mA outputs. The mA
outputs are affected by Flow Direction only if mA Output Process Variable is set to a flow
variable.
Flow Direction and mA outputs
The effect of Flow Direction on the mA outputs depend on Lower Range Value configured for
the mA output:
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.
Appropriate when both forward and
reverse flow are expected, and reverse
flow will dominate, but the amount of
forward flow will be significant.
•If Lower Range Value is set to 0, see Figure 4‐1.
•If Lower Range Value is set to a negative value, see Figure 4‐2.
40Micro Motion® Model 1500 Transmitters with Analog Outputs
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Configure process measurement
Effect of Flow Direction on the mA output: Lower Range Value = 0Figure 4-1:
Flow Direction = Forward
20
12
mA output
4
-x0x
Reverse flowForward flow
•Lower Range Value = 0
•Upper Range Value = x
Effect of Flow Direction on the mA output: Lower Range Value < 0Figure 4-2:
Flow Direction = Forward
20
Flow Direction = Reverse, Negate Forward
20
12
mA output
4
-x0x
Reverse flowForward flow
Flow Direction = Reverse, Negate Forward
20
Flow Direction = Absolute Value, Bidirectional,
Negate Bidirectional
20
12
mA output
4
-x0x
Reverse flowForward flow
Flow Direction = Absolute Value, Bidirectional,
Negate Bidirectional
20
12
mA output
4
-x0x
Reverse flowForward flow
•Lower Range Value = −x
•Upper Range Value = x
Example: Flow Direction = Forward and Lower Range Value = 0
Configuration:
•Flow Direction = Forward
•Lower Range Value = 0 g/sec
•Upper Range Value = 100 g/sec
Result:
12
mA output
4
-x0x
Reverse flowForward flow
12
mA output
4
-x0x
Reverse flowForward flow
Configuration and Use Manual 41
Page 50
Configure process measurement
•Under conditions of reverse flow or zero flow, the mA output is 4 mA.
•Under conditions of forward flow, up to a flow rate of 100 g/sec, the mA output
•Under conditions of forward flow, if the flow rate equals or exceeds 100 g/sec, the
Example: Flow Direction = Forward and Lower Range Value < 0
Configuration:
•Flow Direction = Forward
•Lower Range Value = −100 g/sec
•Upper Range Value = +100 g/sec
Result:
•Under conditions of zero flow, the mA output is 12 mA.
•Under conditions of forward flow, for flow rates between 0 and +100 g/sec, the mA
•Under conditions of forward flow, if (the absolute value of) the flow rate equals or
•Under conditions of reverse flow, for flow rates between 0 and −100 g/sec, the mA
•Under conditions of reverse flow, if the absolute value of the flow rate equals or
varies between 4 mA and 20 mA in proportion to the flow rate.
mA output will be proportional to the flow rate up to 20.5 mA, and will be level at
20.5 mA at higher flow rates.
output varies between 12 mA and 20 mA in proportion to (the absolute value of) the
flow rate.
exceeds 100 g/sec, the mA output is proportional to the flow rate up to 20.5 mA,
and will be level at 20.5 mA at higher flow rates.
output varies between 4 mA and 12 mA in inverse proportion to the absolute value
of the flow rate.
exceeds 100 g/sec, the mA output is inversely proportional to the flow rate down to
3.8 mA, and will be level at 3.8 mA at higher absolute values.
Example: Flow Direction = Reverse
Configuration:
•Flow Direction = Reverse
•Lower Range Value = 0 g/sec
•Upper Range Value = 100 g/sec
Result:
•Under conditions of forward flow or zero flow, the mA output is 4 mA.
•Under conditions of reverse flow, for flow rates between 0 and +100 g/sec, the mA
output level varies between 4 mA and 20 mA in proportion to the absolute value of
the flow rate.
•Under conditions of reverse flow, if the absolute value of the flow rate equals or
exceeds 100 g/sec, the mA output will be proportional to the absolute value of the
flow rate up to 20.5 mA, and will be level at 20.5 mA at higher absolute values.
42Micro Motion® Model 1500 Transmitters with Analog Outputs
Page 51
Configure process measurement
Effect of Flow Direction on frequency outputs
Flow Direction affects how the transmitter reports flow values via the frequency outputs. The
frequency outputs are affected by Flow Direction only if Frequency Output Process Variable is set
to a flow variable.
Table 4-6:
Effect of the Flow Direction parameter and actual flow direction on
frequency outputs
Flow Direction settingActual flow direction
ForwardZero flowReverse
Forward
Reverse
Bidirectional
Absolute Value
Negate Forward
Negate Bidirectional
Hz > 00 Hz0 Hz
0 Hz0 HzHz > 0
Hz > 00 HzHz > 0
Hz > 00 HzHz > 0
0 Hz0 HzHz > 0
Hz > 00 HzHz > 0
Effect of Flow Direction on discrete outputs
The Flow Direction parameter affects the discrete output behavior only if Discrete Output
Source is set to Flow Direction.
Table 4-7:
Flow Direction settingActual flow direction
Effect of the Flow Direction parameter and actual flow direction on
discrete outputs
ForwardZero flowReverse
Forward
Reverse
Bidirectional
Absolute Value
Negate Forward
Negate Bidirectional
OFFOFFON
OFFOFFON
OFFOFFON
OFFOFFOFF
ONOFFOFF
ONOFFOFF
Effect of Flow Direction on digital communications
Flow Direction affects how flow values are reported via digital communications.
Configuration and Use Manual 43
Page 52
Configure process measurement
Table 4-8:
Effect of the Flow Direction parameter and actual flow direction on flow
values reported via digital communications
Flow Direction settingActual flow direction
ForwardZero flowReverse
Forward
Reverse
Bidirectional
Absolute Value
Negate Forward
Negate Bidirectional
Positive0Negative
Positive0Negative
Positive0Negative
Positive
Negative0Positive
Negative0Positive
(3)
0Positive
Effect of Flow Direction on flow totals
Flow Direction affects how flow totals and inventories are calculated.
Table 4-9:
Flow Direction settingActual flow direction
Effect of the Flow Direction parameter and actual flow direction on flow
totals and inventories
ForwardZero flowReverse
Forward
Reverse
Bidirectional
Absolute Value
Negate Forward
Negate Bidirectional
Totals increaseTotals do not changeTotals do not change
Totals do not changeTotals do not changeTotals increase
Totals increaseTotals do not changeTotals decrease
Totals increaseTotals do not changeTotals increase
Totals do not changeTotals do not changeTotals increase
Totals decreaseTotals do not changeTotals increase
4.5Configure 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.
The density measurement parameters include:
Density Measurement Unit
•
Slug Flow Parameters
•
Density Damping
•
Density Cutoff
•
(3) Refer to the digital communications status bits for an indication of whether flow is positive or negative.
44Micro Motion® Model 1500 Transmitters with Analog Outputs
Page 53
4.5.1Configure Density Measurement Unit
ProLink IIProLink > Configuration > Density > Density Units
ProLink IIIDevice Tools > Configuration > Process Measurement > Density
Field Communicator Configure > Manual Setup > Measurements > Density > Density Unit
Overview
Density Measurement Unit specifies the units of measure that will be displayed for density
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
Configure process measurement
The transmitter provides a standard set of measurement units for Density Measurement Unit.
Different communications tools may use different labels.
Options for Density Measurement UnitTable 4-10:
Unit descriptionLabel
ProLink IIProLink IIIField Communicator
Specific gravity unit (not temperaturecorrected)
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
SGUSGUSGU
g/cm3g/cm3g/Cucm
g/lg/lg/L
g/mlg/mlg/mL
kg/lkg/lkg/L
kg/m3kg/m3kg/Cum
lbs/Usgallbs/Usgallb/gal
lbs/ft3lbs/ft3lb/Cuft
lbs/in3lbs/in3lb/CuIn
degAPIdegAPIdegAPI
sT/yd3sT/yd3STon/Cuyd
Configuration and Use Manual 45
Page 54
Configure process measurement
4.5.2Configure slug flow parameters
ProLink II• ProLink > Configuration > Density > Slug High Limit
• ProLink > Configuration > Density > Slug Low Limit
• ProLink > Configuration > Density > Slug Duration
ProLink IIIDevice Tools > Configuration > Process Measurement > Density
Field Communicator • Configure > Manual Setup > Measurements > Density > Slug Low Limit
• Configure > Manual Setup > Measurements > Density > Slug High Limit
The slug flow parameters control how the transmitter detects and reports two-phase flow
(gas in a liquid process or liquid in a gas process).
Procedure
1.
Set Slug Low Limit to the lowest density value that is considered normal in your
process.
Values below this will cause the transmitter to perform the configured slug flow
action. Typically, this value is the lowest density value in the normal range of your
process.
Tip
Gas entrainment can cause your process density to drop temporarily. To reduce the
occurrence of slug flow alarms that are not significant to your process, set Slug Low Limit
slightly below your expected lowest process density.
You must enter Slug Low Limit in g/cm3, even if you configured another unit for
density measurement.
The default value for Slug Low Limit is 0.0 g/cm3. The range is 0.0 to 10.0 g/cm3.
2.
Set Slug High Limit to the highest density value that is considered normal in your
process.
Values above this will cause the transmitter to perform the configured slug flow
action. Typically, this value is the highest density value in the normal range of your
process.
Tip
To reduce the occurrence of slug flow alarms that are not significant to your process, set Slug
High Limit slightly above your expected highest process density.
You must enter Slug High Limit in g/cm3, even if you configured another unit for
density measurement.
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Configure process measurement
The default value for Slug High Limit is 5.0 g/cm3. The range is 0.0 to 10.0 g/cm3.
3.Set Slug Duration to the number of seconds that the transmitter will wait for a slug
flow condition to clear before performing the configured slug flow action.
The default value for Slug Duration is 0.0 seconds. The range is 0.0 to 60.0 seconds.
Slug flow detection and reporting
Slug flow is typically used as an indicator of two-phase flow (gas in a liquid process or liquid
in a gas process). Two-phase flow can cause a variety of process control issues. By
configuring the slug flow parameters appropriately for your application, you can detect
process conditions that require correction.
Tip
To decrease the occurrence of slug flow alarms, lower Slug Low Limit or raise Slug High Limit.
A slug flow condition occurs whenever the measured density goes below Slug Low Limit or
above Slug High Limit. If this occurs:
•A slug flow alarm is posted to the active alarm log.
•All outputs that are configured to represent flow rate hold their last “pre-slug flow”
value for the configured Slug Duration.
If the slug flow condition clears before Slug Duration expires:
•Outputs that represent flow rate revert to reporting actual flow.
•The slug flow alarm is deactivated, but remains in the active alarm log until it is
acknowledged.
If the slug flow condition does not clear before Slug Duration expires, the outputs that
represent flow rate report a flow rate of 0.
If Slug Duration is set to 0.0 seconds, the outputs that represent flow rate will report a flow
rate of 0 as soon as slug flow is detected.
4.5.3Configure Density Damping
ProLink IIProLink > Configuration > Density > Density Damping
ProLink IIIDevice Tools > Configuration > Process Measurement > Density
Field Communicator Configure > Manual Setup > Measurements > Density > Density Damping
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 reported process variable. At the end of the interval, the reported process variable
will reflect 63% of the change in the actual measured value.
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Procedure
Set Density Damping to the value you want to use.
The default value is 1.6 seconds. The range depends on the core processor type and the
setting of Update Rate, as shown in the following table:
Core processor type
Standard
EnhancedNot applicable0 to 40.96 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.
Update Rate settingDensity Damping range
Normal
Special
0 to 51.2 seconds
0 to 10.24 seconds
The value you enter is automaticaly rounded down to the nearest valid value. The valid
values for Density Damping depend on the setting of Update Rate.
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.
Interaction between Density Damping and Added Damping
In some circumstances, both Density Damping and Added Damping are applied to the reported
density value.
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Density Damping controls the rate of change in the density process variable. Added Damping
controls the rate of change reported via the mA output. If mA Output Process Variable is set to
Density, and both Density Damping and Added Damping are set to non-zero values, density
damping is applied first, and the added damping calculation is applied to the result of the
first calculation.
4.5.4Configure Density Cutoff
ProLink IIProLink > Configuration > Density > Low Density Cutoff
ProLink IIIDevice Tools > Configuration > Process Measurement > Density
Field Communicator Configure > Manual Setup > Measurements > Density > Density Cutoff
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
Configure process measurement
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.
4.6Configure temperature measurement
The temperature measurement parameters control how temperature data from the
sensor is reported. Temperature data is used to compensate for the effect of temperature
on the sensor tubes during flow measurement .
The temperature measurement parameters include:
Temperature Measurement Unit
•
Temperature Damping
•
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Configure process measurement
4.6.1Configure Temperature Measurement Unit
ProLink IIProLink > Configuration > Temperature > Temp Units
ProLink IIIDevice Tools > Configuration > Process Measurement > Temperature
Field Communicator Configure > Manual Setup > Measurements > Temperature > Temperature Unit
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.
Options for Temperature Measurement UnitTable 4-12:
Unit description
ProLink IIProLink III
Degrees Celsius
Degrees Fahrenheit
Degrees Rankine
Kelvin
degC°CdegC
degF°FdegF
degR°RdegR
degK°KKelvin
4.6.2Configure Temperature Damping
ProLink IIProLink > Configuration > Temperature > Temp Damping
ProLink IIIDevice Tools > Configuration > Temperature
Field Communicator Configure > Manual Setup > Measurements > Temperature > Temp Damping
Label
Field Communicator
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Configure process measurement
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 reported process variable. At the end of the interval, the reported process variable
will reflect 63% of the change in the actual measured value.
Procedure
Enter the value you want to use for Temperature Damping.
The default value is 4.8 seconds. The range is 0.0 to 76.8 seconds.
Tips
• A high damping value makes the process variable appear smoother because the reported value
changes slowly.
• A low damping value makes the process variable appear more erratic because the reported value
changes more quickly.
• Whenever the damping value is non-zero, the reported measurement will lag the actual
measurement because the reported value is being averaged over time.
• In general, lower damping values are preferable because there is less chance of data loss, and less
lag time between the actual measurement and the reported value.
The value you enter is automaticaly rounded down to the nearest valid value. Valid values
for Temperature Damping are 0, 0.6, 1.2, 2.4, 4.8, … 76.8.
Effect of Temperature Damping on process measurement
Temperature Damping affects the response speed for temperature compensation with
fluctuating temperatures. Temperature compensation adjusts the process measurement
to compensate for the effect of temperature on the sensor tube.
4.7Configure pressure compensation
Pressure compensation adjusts process measurement to compensate for the pressure
effect on the sensor. The pressure effect is the change in the sensor’s sensitivity to flow
and density caused by the difference between the calibration pressure and the process
pressure.
Tip
Not all sensors or applications require pressure compensation. The pressure effect for a specific
sensor model can be found in the product data sheet located at www.micromotion.com. If you are
uncertain about implementing pressure compensation, contact Micro Motion customer service.
4.7.1Configure pressure compensation using ProLink II
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Configure process measurement
Prerequisites
You will need the flow factor, density factor, and calibration pressure values for your
sensor.
•For the flow factor and density factor, see the product data sheet for your sensor.
•For the calibration pressure, see the calibration sheet for your sensor. If the data is
Procedure
1.Choose View > Preferences and ensure that Enable External Pressure Compensation is
2.Choose ProLink > Configuration > Pressure.
3.Enter Flow Factor for your sensor.
unavailable, use 20 PSI.
checked.
The flow factor is the percent change in the flow rate per PSI. When entering the
value, reverse the sign.
Example:
If the flow factor is 0.000004 % per PSI, enter −0.000004 % per PSI.
4.Enter Density Factor for your sensor.
The density factor is the change in fluid density, in g/cm3/PSI. When entering the
value, reverse the sign.
Example:
If the density factor is 0.000006 g/cm3/PSI, enter −0.000006 g/cm3/PSI.
5.Enter Cal Pressure for your sensor.
The calibration pressure is the pressure at which your sensor was calibrated, and
defines the pressure at which there is no pressure effect. If the data is unavailable,
enter 20 PSI.
6.Determine how the transmitter will obtain pressure data, and perform the required
setup.
OptionSetup
A user-configured
static pressure value
a. Set Pressure Units to the desired unit.
Set External Pressure to the desired value.
b.
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OptionSetup
Polling for pressure
a. Ensure that the primary mA output has been wired to support
b.
c. Choose an unused polling slot.
d. Set Polling Control to Poll As Primary or Poll as Secondary, and click
Apply.
e. Set External Tag to the HART tag of the external pressure device.
f. Set Variable Type to Pressure.
Tip
• Poll as Primary: No other HART masters will be on the network.
• Poll as Secondary: Other HART masters will be on the network.
The Field Communicator is not a HART master.
Configure process measurement
A value written by
digital communications
a. Set Pressure Units to the desired unit.
Perform the necessary host programming and communications
b.
setup to write pressure data to the transmitter at appropriate in-
tervals.
Postrequisites
If you are using an external pressure value, verify the setup by choosing ProLink > Process
Variables and checking the value displayed in External Pressure.
4.7.2Configure pressure compensation using ProLink III
Prerequisites
You will need the flow factor, density factor, and calibration pressure values for your
sensor.
•For the flow factor and density factor, see the product data sheet for your sensor.
•For the calibration pressure, see the calibration sheet for your sensor. If the data is
3.Enter Flow Calibration Pressure for your sensor.
The calibration pressure is the pressure at which your sensor was calibrated, and
defines the pressure at which there is no pressure effect. If the data is unavailable,
enter 20 PSI.
4.Enter Flow Factor for your sensor.
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Configure process measurement
5.Enter Density Factor for your sensor.
6.Set Pressure Source to the method that the transmitter will use to obtain pressure
The flow factor is the percent change in the flow rate per PSI. When entering the
value, reverse the sign.
Example:
If the flow factor is 0.000004 % per PSI, enter −0.000004 % per PSI.
The density factor is the change in fluid density, in g/cm3/PSI. When entering the
value, reverse the sign.
Example:
If the density factor is 0.000006 g/cm3/PSI, enter −0.000006 g/cm3/PSI.
data.
OptionDescription
Poll for external value
Static or Digital Communications
The transmitter will poll an external pressure device, using
HART protocol over the primary mA output.
The transmitter will use the pressure value that it reads from
memory.
• Static: The configured value is used.
• Digital Communications: A host writes transmitter data
to transmitter memory.
7.If you chose to poll for pressure data:
a.
Select the Polling Slot to use.
The transmitter has two polling slots. You can use one for pressure and the other
for temperature, if concentration measurement or petroleum measurement is
enabled.
b. Set Polling Control to Poll as Primary or Poll as Secondary, and click Apply.
Tip
• Poll as Primary: No other HART masters will be on the network.
• Poll as Secondary: Other HART masters will be on the network. The Field Communicator
is not a HART master.
c. Set External Device Tag to the HART tag of the external pressure device, and click
Apply.
8.
If you chose to use a static pressure value:
a. Set Pressure Unit to the desired unit.
b. Set Static or Current Pressure to the value to use, and click Apply
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Configure process measurement
9.If you want to use digital communications, click Apply, then perform the necessary
host programming and communications setup to write temperature data to the
transmitter at appropriate intervals.
Postrequisites
If you are using an external pressure value, verify the setup by checking the External Pressure
value displayed in the Inputs area of the main window.
4.7.3Configure pressure compensation using the
Field Communicator
Prerequisites
You will need the flow factor, density factor, and calibration pressure values for your
sensor.
•For the flow factor and density factor, see the product data sheet for your sensor.
•For the calibration pressure, see the calibration sheet for your sensor. If the data is
The calibration pressure is the pressure at which your sensor was calibrated, and
defines the pressure at which there is no pressure effect. If the data is unavailable,
enter 20 PSI.
4.Enter Flow Press Factor for your sensor.
The flow factor is the percent change in the flow rate per PSI. When entering the
value, reverse the sign.
Example:
If the flow factor is 0.000004 % per PSI, enter −0.000004 % per PSI.
5.Enter Dens Press Factor for your sensor.
The density factor is the change in fluid density, in g/cm3/PSI. When entering the
value, reverse the sign.
Example:
If the density factor is 0.000006 g/cm3/PSI, enter −0.000006 g/cm3/PSI.
6.Determine how the transmitter will obtain pressure data, and perform the required
setup.
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Configure process measurement
OptionSetup
A user-configured
static pressure value
Polling for pressure
a. Set Pressure Unit to the desired unit.
Set Compensation Pressure to the desired value.
b.
a. Ensure that the primary mA output has been wired to support
Pressure/Temperature > External Polling.
c. Set Poll Control to Poll As Primary Host or Poll as Secondary Host.
d. Choose an unused polling slot.
e. Set External Tag to the HART tag of the external pressure device.
f. Set Polled Variable to Pressure.
Tip
• Poll as Primary: No other HART masters will be on the network.
• Poll as Secondary: Other HART masters will be on the network.
The Field Communicator is not a HART master.
A value written by
digital communications
a. Set Pressure Unit to the desired unit.
Perform the necessary host programming and communications
b.
setup to write pressure data to the transmitter at appropriate in-
tervals.
Postrequisites
If you are using an external pressure value, verify the setup by choosing Service Tools >
Variables > External Variables and checking the value displayed for External Pressure.
4.7.4Options for Pressure Measurement Unit
The transmitter provides a standard set of measurement units for Pressure Measurement Unit.
Different communications tools may use different labels for the units. In most
applications, Pressure Measurement Unit should be set to match the pressure measurement
unit used by the remote device.
Options for Pressure Measurement UnitTable 4-13:
Unit descriptionLabel
ProLink IIProLink IIIField Communicator
Feet water @ 68 °FFt Water @ 68°F
Inches water @ 4 °CIn Water @ 4°C
Inches water @ 60 °FIn Water @ 60°F
Inches water @ 68 °FIn Water @ 68°F
Millimeters water @ 4 °Cmm Water @ 4°C
Ft Water @ 68°FftH2O
In Water @ 4°CinH2O @4DegC
In Water @ 60°FinH2O @60DegF
In Water @ 68°FinH2O
mm Water @ 4°CmmH2O @4DegC
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Options for Pressure Measurement Unit (continued)Table 4-13:
Unit descriptionLabel
ProLink IIProLink IIIField Communicator
Millimeters water @ 68 °Fmm Water @ 68°F
Millimeters mercury @ 0 °Cmm Mercury @ 0°C
Inches mercury @ 0 °CIn Mercury @ 0°C
Pounds per square inch
Bar
Millibar
Grams per square centimeter
Kilograms per square centimeter
Pascals
Kilopascals
Megapascals
Torr @ 0 °CTorr @ 0°C
Atmospheres
PSIPSIpsi
barbarbar
millibarmillibarmbar
g/cm2g/cm2g/Sqcm
kg/cm2kg/cm2kg/Sqcm
pascalspascalsPa
KilopascalsKilopascalskPa
megapascalsMegapascalsMPa
atmsatmsatms
mm Water @ 68°FmmH2O
mm Mercury @ 0°CmmHg
In Mercury @ 0°CinHG
Torr @ 0°Ctorr
Configure process measurement
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Configure device options and preferences
5Configure device options and
preferences
Topics covered in this chapter:
Configure response time parameters
•
Configure alarm handling
•
Configure informational parameters
•
5.1Configure response time parameters
You can configure the rate at which process data is polled and process variables are
calculated.
Update Rate controls the rate at which process data is polled and process variables are
calculated. Update Rate = Special produces faster and “noisier” response to changes in the
process. Do not use Special mode unless required by your application.
Tip
For systems with a standard core processor, Special mode can improve performance for applications
with entrained air or Empty-Full-Empty conditions. This does not apply to systems with an enhanced
core processor.
Prerequisites
Before setting Update Rate to Special:
•Check the effects of Special mode on specific process variables.
•Contact Micro Motion.
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Configure device options and preferences
Procedure
1.Set Update Rate as desired.
Option Description
Normal
Special
If you change Update Rate, the settings for Flow Damping, Density Damping, and
Temperature Damping are automatically adjusted.
2.
If you set Update Rate to Special, select the process variable to be polled at 100 Hz.
All process data is polled at the rate of 20 times per second (20 Hz).
All process variables are calculated at 20 Hz.
This option is appropriate for most applications.
A single, user-specified process variable is polled at the rate of 100 times per second (100 Hz). Other process data is polled at 6.25 Hz). Some process, diagnostic,
and calibration data is not polled.
All available process variables are calculated at 100 Hz.
Use this option only if required by your application.
Effects of Update Rate = Special
Incompatible features and functions
Special mode is not compatible with the following features and functions:
•Enhanced events. Use basic events instead.
•All calibration procedures.
•Zero verification.
•Restoring the factory zero or the prior zero.
If required, you can switch to Normal mode, perform the desired procedures, and then
return to Special mode.
Process variable updates
Some process variables are not updated when Special mode is enabled.
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Special mode and process variable updatesTable 5-1:
Always polled and updated
• Mass flow
• Volume flow
• Gas standard volume flow
• Density
• Temperature
• Drive gain
• LPO amplitude
• Status [contains Event 1 and Event
2 (basic events)]
• Raw tube frequency
• Mass total
• Volume total
• Gas standard volume total
Configure device options and preferences
Updated only when the petroleum
measurement application is disabledNever updated
• RPO amplitude
• Board temperature
• Core input voltage
• Mass inventory
• Volume inventory
• Gas standard volume inventory
All other process variables and calibration data. They retain the values held
at the time you enabled Special mode.
5.1.2Configure Calculation Speed (Response Time)
ProLink IIProLink > Configuration > Device > Response Time
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.
In ProLink II, Calculation Speed is called Response Time.
Restriction
Calculation Speed is available only on systems with the enhanced core processor.
Tip
You can use Calculation Speed = Special with either setting of Update Rate. The parameters control
different aspects of flowmeter processing.
Not available
Procedure
Set Calculation Speed as desired.
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Configure device options and preferences
OptionDescription
Normal
Special
Transmitter calculates process variables at the standard speed.
Transmitter calculates process variables at a faster speed.
5.2Configure alarm handling
The alarm handling parameters control the transmitter’s response to process and device
conditions.
Alarm handling parameters include:
Fault Timeout
•
Status Alarm Severity
•
5.2.1Configure Fault Timeout
ProLink IIProLink > Configuration > Analog Output > Last Measured Value Timeout
ProLink > Configuration > Frequency > Last Measured Value Timeout
Fault Timeout controls the delay before fault actions are performed.
Restriction
Fault Timeout is applied only to the following alarms (listed by Status Alarm Code): A003, A004, A005,
A008, A016, A017, A033. For all other alarms, fault actions are performed as soon as the alarm is
detected.
Procedure
Set Fault Timeout as desired.
The default value is 0 seconds. The range is 0 to 60 seconds.
If you set Fault Timeout to 0, fault actions are performed as soon as the alarm condition is
detected.
The fault timeout period begins when the transmitter detects an alarm condition. During
the fault timeout period, the transmitter continues to report its last valid measurements.
If the fault timeout period expires while the alarm is still active, the fault actions are
performed. If the alarm condition clears before the fault timeout expires, no fault actions
are performed.
62Micro Motion® Model 1500 Transmitters with Analog Outputs
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Tip
ProLink II allows you to set Fault Timeout in two locations. However, there is only one parameter, and
the same setting is applied to all outputs.
Field Communicator Configure > Manual Setup > Info Parameters > Transmitter Info > Date
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 II and ProLink III provide a calendar tool to help you select the date.
Field Communicator Configure > Manual Setup > Info Parameters > Sensor Information > Sensor Serial Number
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.
Field Communicator Configure > Manual Setup > Info Parameters > Sensor Information > Tube Wetted Material
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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.
Field Communicator Configure > Manual Setup > Info Parameters > Sensor Information > Tube Lining
Configure device options and preferences
Overview
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.
Field Communicator Configure > Manual Setup > Inputs/Outputs > Channels > Channel C
Overview
You can configure Channel C on your transmitter to operate as a frequency output or a
discrete output. The channel configuration must match the wiring at the transmitter
terminals.
Prerequisites
To avoid causing process errors:
•Configure the channels before configuring the outputs.
•Before changing the channel configuration, ensure that all control loops affected by
the channel are under manual control.
Procedure
Set Channel C as desired.
OptionDescription
Frequency output
Discrete output
Channel C will operate as a frequency output.
Channel C will operate as a discrete output.
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Integrate the meter with the control system
Postrequisites
For each channel that you configured, perform or verify the corresponding input or output
configuration. When the configuration of a channel is changed, the channel’s behavior will
be controlled by the configuration that is stored for the selected input or output type, and
the stored configuration may not be appropriate for your process.
After verifying channel and output configuration, return the control loop to automatic
control.
6.2Configure the mA output
The mA output is used to report the configured process variable. The mA output
parameters control how the process variable is reported. Your transmitter has one mA
output: Channel A.
The mA output parameters include:
mA Output Process Variable
•
•Lower Range Value (LRV) and Upper Range Value (URV)
AO Cutoff
•
Added Damping
•
•AO Fault Action and AO Fault Value
Important
Whenever you change an mA output parameter, verify all other mA output parameters before
returning the flowmeter to service. In some situations, the transmitter automatically loads a set of
stored values, and these values may not be appropriate for your application.
6.2.1Configure mA Output Process Variable
ProLink IIProLink > Configuration > Analog Output > Primary Output > PV Is
Field Communicator Configure > Manual Setup > Inputs/Outputs > mA Output > Primary Variable
Overview
Use mA Output Process Variable to select the variable that is reported over the mA output.
Prerequisites
•If you plan to configure the output to report volume flow, ensure that you have set
Volume Flow Type as desired: Liquid or Gas Standard Volume.
•If you are using the HART variables, be aware that changing the configuration of mA
Output Process Variable will change the configuration of the HART Primary Variable
(PV) and the HART Tertiary Variable (TV).
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Procedure
Set mA Output Process Variable as desired.
The default setting is Mass Flow Rate.
Options for mA Output Process Variable
The transmitter provides a basic set of options for mA Output Process Variable, plus several
application-specific options. Different communications tools may use different labels for
the options.
Options for mA Output Process VariableTable 6-1:
Process variableLabel
ProLink IIProLink IIIField Communicator
Mass flow rate
Volume flow rate
Gas standard volume flow
rate
Mass Flow RateMass Flow RateMass flo
Volume Flow RateVolume Flow RateVol flo
Gas Std Vol Flow RateGas Standard Volume Flow Rate Gas vol flo
Integrate the meter with the control system
6.2.2Configure Lower Range Value (LRV) and Upper Range
Value (URV)
Field Communicator • Configure > Manual Setup > Inputs/Outputs > mA Output > mA Output Settings > LRV
• Configure > Manual Setup > Inputs/Outputs > mA Output > mA Output Settings > URV
Overview
The Lower Range Value (LRV) and Upper Range Value (URV) are used to scale the mA output,
that is, to define the relationship between mA Output Process Variable and the mA output
level.
Procedure
Set LRV and URV as desired.
• LRV is the value of mA Output Process Variable represented by an output of 4 mA. The
default value for LRV depends on the setting of mA Output Process Variable. Enter LRV in
the measurement units that are configured for mA Output Process Variable.
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Integrate the meter with the control system
• URV is the value of mA Output Process Variable represented by an output of 20 mA. The
default value for URV depends on the setting of mA Output Process Variable. Enter URV in
the measurement units that are configured for mA Output Process Variable.
Tips
For best performance:
• Set LRV≥LSL (lower sensor limit).
• Set URV≤USL (upper sensor limit).
• Set these values so that the difference between URV and LRV is ≥Min Span (minimum span).
Defining URV and LRV within the recommended values for Min Span, LSL, and USL ensures that the
resolution of the mA output signal is within range of the bit precision of the D/A converter.
Note
You can set URV below LRV. For example, you can set URV to 50 and LRV to 100.
The mA output uses a range of 4–20 mA to represent mA Output Process Variable. Between
LRV and URV, the mA output is linear with the process variable. If the process variable
drops below LRV or rises above URV, the transmitter posts an output saturation alarm.
Default values for Lower Range Value (LRV) and Upper Range
Value (URV)
Each option for mA Output Process Variable has its own LRV and URV. If you change the
configuration of mA Output Process Variable, the corresponding LRV and URV are loaded and
used.
Default values for Lower Range Value (LRV) and Upper Range Value (URV)Table 6-2:
Process variableLRVURV
All mass flow variables–200.000 g/sec200.000 g/sec
All liquid volume flow variables–0.200 l/sec0.200 l/sec
Gas standard volume flow–423.78 SCFM423.78 SCFM
6.2.3Configure AO Cutoff
ProLink IIProLink > Configuration > Analog Output > Primary Output > AO Cutoff
Field Communicator Configure > Manual Setup > Inputs/Outputs > mA Output > mA Output Settings > PV MAO Cutoff
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Overview
AO Cutoff (Analog Output Cutoff) specifies the lowest mass flow rate, volume flow rate, or
gas standard volume flow rate that will be reported through the mA output. Any flow rates
below AO Cutoff will be reported as 0.
Restriction
AO Cutoff is applied only if mA Output Process Variable is set to Mass Flow Rate, Volume Flow Rate, or Gas
Standard Volume Flow Rate. If mA Output Process Variable is set to a different process variable, AO Cutoff is
not configurable, and the transmitter does not implement the AO cutoff function.
Procedure
Set AO Cutoff as desired.
The default value for AO Cutoff is 0.0 g/sec.
Tip
For most applications, the default value of AO Cutoff should be used. Contact Micro Motion customer
service before changing AO Cutoff.
Interaction between AO Cutoff and process variable cutoffs
When mA Output Process Variable is set to a flow variable (for example, mass flow rate or
volume flow rate), AO Cutoff interacts with Mass Flow Cutoff or Volume Flow Cutoff. The
transmitter puts the cutoff into effect at the highest flow rate at which a cutoff is
applicable.
Example: Cutoff interaction
Configuration:
•mA Output Process Variable = Mass Flow Rate
•Frequency Output Process Variable = Mass Flow Rate
•AO Cutoff = 10 g/sec
•Mass Flow Cutoff = 15 g/sec
Result: If the mass flow rate drops below 15 g/sec, all outputs representing mass flow will
report zero flow.
Example: Cutoff interaction
Configuration:
•mA Output Process Variable = Mass Flow Rate
•Frequency Output Process Variable = Mass Flow Rate
•AO Cutoff = 15 g/sec
•Mass Flow Cutoff = 10 g/sec
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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.
•If the mass flow rate drops below 10 g/sec, both outputs will report zero flow.
6.2.4Configure Added Damping
ProLink IIProLink > Configuration > Analog Output > Primary Output > AO Added Damp
Field Communicator Configure > Manual Setup > Inputs/Outputs > mA Output > mA Output Settings > PV Added Damping
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 reported process variable. At the end of the interval, the reported process variable
will reflect 63% of the change in the actual measured value. Added Damping controls the
amount of damping that will be applied to the mA output. It affects the reporting of mAOutput Process Variable through the mA output only. It does not affect the reporting of that
process variable via any other method (e.g., the frequency output or digital
communications), or the value of the process variable used in calculations.
Valid values for Added DampingTable 6-3:
Setting of Update Rate
Normal
Note
Added Damping is not applied if the mA output is fixed (for example, during loop testing) or if the mA
output is reporting a fault. Added Damping is applied while sensor simulation is active.
Procedure
Set Added Damping to the desired value.
The default value is 0.0 seconds.
When you specify a value for Added Damping, the transmitter automatically rounds the value
down to the nearest valid value.
Note
Added Damping values are affected by the setting of Update Rate and 100 Hz Variable.
Interaction between Added Damping and process variable
damping
When mA Output Process Variable is set to a flow variable, density, or temperature, Added
Damping interacts with Flow Damping, Density Damping, or Temperature Damping. If multiple
damping parameters are applicable, the effect of damping the process variable is
calculated first, and the added damping calculation is applied to the result of that
calculation.
Example: Damping interaction
Configuration:
•Flow Damping = 1 second
•mA Output Process Variable = Mass Flow Rate
•Added Damping = 2 seconds
Result: A change in the mass flow rate will be reflected in the mA output over a time period
that is greater than 3 seconds. The exact time period is calculated by the transmitter
according to internal algorithms which are not configurable.
6.2.5Configure mA Output Fault Action and mA Output Fault
Level
ProLink II• ProLink > Configuration > Analog Output > Primary Output > AO Fault Action
• ProLink > Configuration > Analog Output > Primary Output > AO Fault Level
Field Communicator Configure > Manual Setup > Inputs/Outputs > mA Output > mA Fault Settings
Overview
mA Output Fault Action controls the behavior of the mA output if the transmitter encounters
an internal fault condition.
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Note
For some faults only: If Last Measured Value Timeout is set to a non-zero value, the transmitter will not
implement the fault action until the timeout has elapsed.
Procedure
Set mA Output Fault Action to the desired value.
1.
The default setting is Downscale.
2.If you set mA Output Fault Action to Upscale or Downscale, set mA Output Fault Level as
desired.
Options for mA Output Fault Action and mA Output Fault
Level
Options for mA Output Fault Action and mA Output Fault LevelTable 6-4:
OptionmA output behavior
Upscale
Downscale (default)Goes to the configured fault level
Internal Zero
None
Goes to the configured fault levelDefault: 22.0 mA
Goes to the mA output level associated
with a process variable value of 0 (zero),
as determined by Lower Range Value and
Upper Range Value settings
Tracks data for the assigned process variable; no fault action
mA Output Fault Level
Range: 21 to 24 mA
Default: 2.0 mA
Range: 1.0 to 3.6 mA
Not applicable
Not applicable
CAUTION!
If you set mA Output Fault Action or Frequency Output Fault Action to None, be sure to set DigitalCommunications Fault Action to None. If you do not, the output will not report actual process data,
and this may result in measurement errors or unintended consequences for your process.
Restriction
If you set Digital Communications Fault Action to NAN, you cannot set mA Output Fault Action or Frequency
Output Fault Action to None. If you try to do this, the transmitter will not accept the configuration.
6.3Configure the frequency output
The frequency output is used to report a process variable. The frequency output
parameters control how the process variable is reported. Your transmitter has one
frequency output: Channel C.
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The frequency output parameters include:
Frequency Output Polarity
•
Frequency Output Scaling Method
•
Frequency Output Maximum Pulse Width
•
•Frequency Output Fault Action and Frequency Output Fault Value
Restriction
The process variable assigned to the primary mA output is automatically assigned to the frequency
output. You cannot assign a different process variable.
Important
Whenever you change a frequency output parameter, verify all other frequency output parameters
before returning the flowmeter to service. In some situations, the transmitter automatically loads a
set of stored values, and these values may not be appropriate for your application.
Field Communicator Configure > Manual Setup > Inputs/Outputs > Frequency Output > FO Settings > FO Polarity
Overview
Frequency Output Polarity controls how the output indicates the ON (active) state. The default
value, Active High, is appropriate for most applications. Active Low may be required by
applications that use low-frequency signals.
Procedure
Set Frequency Output Polarity as desired.
The default setting is Active High.
Options for Frequency Output Polarity
Options for Frequency Output PolarityTable 6-5:
PolarityReference voltage (OFF)Pulse voltage (ON)
Active High
0As determined by power sup-
ply, pull-up resistor, and load
(see the installation manual for
your transmitter)
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Options for Frequency Output Polarity (continued)Table 6-5:
PolarityReference voltage (OFF)Pulse voltage (ON)
Active Low
As determined by power supply, pull-up resistor, and load
(see the installation manual for
your transmitter)
Field Communicator Configure > Manual Setup > Inputs/Outputs > Frequency Output > FO Scaling
Overview
Frequency Output Scaling Method defines the relationship between output pulse and flow
units. Set Frequency Output Scaling Method as required by your frequency receiving device.
Procedure
Set Frequency Output Scaling Method.
1.
OptionDescription
Frequency=Flow (default)
Pulses/Unit
Units/Pulse
Frequency calculated from flow rate
A user-specified number of pulses represents one flow unit
A pulse represents a user-specified number of flow units
2.Set additional required parameters.
• If you set Frequency Output Scaling Method to Frequency=Flow, set Rate Factor and
Frequency Factor.
• If you set Frequency Output Scaling Method to Pulses/Unit, define the number of pulses
that will represent one flow unit.
• If you set Frequency Output Scaling Method to Units/Pulse, define the number of units
that each pulse will indicate.
Calculate frequency from flow rate
The Frequency=Flow option is used to customize the frequency output for your application
when you do not know appropriate values for Units/Pulse or Pulses/Unit.
If you specify Frequency=Flow, you must provide values for Rate Factor and Frequency Factor:
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Rate Factor
The maximum flow rate that you want the frequency output to report.
Above this rate, the transmitter will report A110: Frequency Output Saturated.
Frequency
Factor
A value calculated as follows:
FrequencyFactor =x N
RateFactor
T
where:
T
Factor to convert selected time base to seconds
N
Number of pulses per flow unit, as configured in the receiving device
The resulting Frequency Factor must be within the range of the frequency output (0 to
10,000 Hz):
•If Frequency Factor is less than1 Hz,reconfigure the receiving device for a higher
pulses/unit setting.
•If Frequency Factor is greater than 10,000 Hz, reconfigure the receiving device for a
lower pulses/unit setting.
Tip
If Frequency Output Scale Method is set to Frequency=Flow, and Frequency Output Maximum Pulse Width is set
to a non-zero value, Micro Motion recommends setting Frequency Factor to a value below 200 Hz.
Example: Configure Frequency=Flow
You want the frequency output to report all flow rates up to 2000 kg/min.
The frequency receiving device is configured for 10 pulses/kg.
Solution:
FrequencyFactor =x N
FrequencyFactor =x 10
RateFactor
T
2000
60
333.33FrequencyFactor =
Set parameters as follows:
•Rate Factor: 2000
•Frequency Factor: 333.33
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6.3.3Configure Frequency Output Maximum Pulse Width
Field Communicator Configure > Manual Setup > Inputs/Outputs > Frequency Output > FO Settings > Max Pulse Width
Overview
Frequency Output Maximum Pulse Width is used to ensure that the duration of the ON signal is
great enough for your frequency receiving device to detect.
The ON signal may be the high voltage or 0.0 V, depending on Frequency Output Polarity.
Table 6-6:
Interaction of Frequency Output Maximum Pulse Width and Frequency
Output Polarity
PolarityPulse width
Active High
Active Low
Procedure
Set Frequency Output Maximum Pulse Width as desired.
The default value is 277 milliseconds. You can set Frequency Output Maximum Pulse Width to
0 milliseconds or to a value between 0.5 milliseconds and 277.5 milliseconds. The
transmitter automatically adjusts the value to the nearest valid value.
Tip
Micro Motion recommends leaving Frequency Output Maximum Pulse Width at the default value. Contact
Micro Motion customer service before changing Frequency Output Maximum Pulse Width.
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6.3.4Configure Frequency Output Fault Action and Frequency
Output Fault Level
Frequency Output Fault Action controls the behavior of the frequency output if the transmitter
encounters an internal fault condition.
Note
For some faults only: If Last Measured Value Timeout is set to a non-zero value, the transmitter will not
implement the fault action until the timeout has elapsed.
Procedure
1.
Set Frequency Output Fault Action as desired.
The default value is Downscale (0 Hz).
2.If you set Frequency Output Fault Action to Upscale, set Frequency Fault Level to the desired
value.
The default value is 15000 Hz. The range is 10 to 15000 Hz.
Options for Frequency Output Fault Action
Options for Frequency Output Fault ActionTable 6-7:
LabelFrequency output behavior
Upscale
Downscale
Internal Zero
None (default)Tracks data for the assigned process variable; no fault action
Goes to configured Upscale value:
• Range: 10 Hz to 15000 Hz
• Default: 15000 Hz
0 Hz
0 Hz
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CAUTION!
If you set mA Output Fault Action or Frequency Output Fault Action to None, be sure to set DigitalCommunications Fault Action to None. If you do not, the output will not report actual process data,
and this may result in measurement errors or unintended consequences for your process.
Restriction
If you set Digital Communications Fault Action to NAN, you cannot set mA Output Fault Action or Frequency
Output Fault Action to None. If you try to do this, the transmitter will not accept the configuration.
6.4Configure the discrete output
The discrete output is used to report specific flowmeter or process conditions. The discrete
output parameters control which condition is reported and how it is reported.
The discrete output parameters include:
Discrete Output Source
•
Discrete Output Polarity
•
Discrete Output Fault Action
•
Restriction
Before you can configure the discrete output, you must configure a channel to operate as a discrete
output.
Important
Whenever you change a discrete output parameter, verify all other discrete output parameters
before returning the flowmeter to service. In some situations, the transmitter automatically loads a
set of stored values, and these values may not be appropriate for your application.
Flow Switch is used to indicate that the flow rate (measured by the configured flow variable)
has moved past the configured setpoint, in either direction. The flow switch is
implemented with a user-configurable hysteresis.
Set Discrete Output Source to Flow Switch, if you have not already done so.
2.Set Flow Switch Variable to the flow variable that you want to use to control the flow
switch.
3.Set Flow Switch Setpoint to the value at which the flow switch will be triggered (after
Hysteresis is applied).
• If the flow rate is below this value, the discrete output is ON.
• If the flow rate is above this value, the discrete output is OFF.
4.Set Hysteresis to the percentage of variation above and below the setpoint that will
operate as a deadband.
Hysteresis defines a range around the setpoint within which the flow switch will not
change. The default is 5%. The valid range is 0.1% to 10%.
Example: If Flow Switch Setpoint = 100 g/sec and Hysteresis = 5%, and the first measured
flow rate is above 100 g/sec, the discrete output is OFF. It will remain OFF unless the
flow rate drops below 95 g/sec. If this happens, the discrete output will turn ON, and
remain ON until the flow rate rises above 105 g/sec. At this point it turns OFF and
will remain OFF until the flow rate drops below 95 g/sec.
Field Communicator Configure > Manual Setup > Inputs/Outputs > Discrete Output > DO Polarity
86Micro Motion® Model 1500 Transmitters with Analog Outputs
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Overview
Discrete outputs have two states: ON (active) and OFF (inactive). Two different voltage
levels are used to represent these states. Discrete Output Polarity controls which voltage level
represents which state.
Field Communicator Configure > Manual Setup > Inputs/Outputs > Discrete Output > DO Fault Action
Overview
Discrete Output Fault Action controls the behavior of the discrete output if the transmitter
encounters an internal fault condition.
Note
For some faults only: If Last Measured Value Timeout is set to a non-zero value, the transmitter will not
implement the fault action until the timeout has elapsed.
CAUTION!
Do not use Discrete Output Fault Action as a fault indicator. If you do, you may not be able to
distinguish a fault condition from a normal operating condition. If you want to use the discrete
output as a fault indicator, see Fault indication with the discrete output.
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Procedure
Set Discrete Output Fault Action as desired.
The default setting is None.
Options for Discrete Output Fault Action
Options for Discrete Output Fault ActionTable 6-10:
Label
Polarity=Active HighPolarity=Active Low
Upscale
Downscale
None (default)Discrete output is controlled by its assignment
• Fault: discrete output is ON
(site-specific voltage)
• No fault: discrete output is con-
trolled by its assignment
• Fault: discrete output is OFF
(0 V)
• No fault: discrete output is con-
trolled by its assignment
Discrete output behavior
• Fault: discrete output is OFF
(0 V)
• No fault: discrete output is con-
trolled by its assignment
• Fault: discrete output is ON
(site-specific voltage)
• No fault: discrete output is con-
trolled by its assignment
Fault indication with the discrete output
To indicate faults via the discrete output, set parameters as follows:
•Discrete Output Source = Fault
•Discrete Output Fault Action = None
Note
If Discrete Output Source is set to Fault and a fault occurs, the discrete output is always ON. The setting
of Discrete Output Fault Action is ignored.
6.5Configure 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.
A basic event is used to provide notification of process changes. A basic 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. You can define up to two basic events. Event status can be
queried via digital communications, and a discrete output can be configured to report
event status.
Procedure
1.
Select the event that you want to configure.
2.Specify Event Type.
Not available
OptionsDescription
HI
LO
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.
3.Assign a process variable to the event.
Set a value for Setpoint A.
4.
5.(Optional) Configure a discrete output to switch states in response to the event
status.
Field Communicator Configure > Alert Setup > Discrete 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 user-
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defined setpoints. You can define up to five enhanced events. For each enhanced event,
you can assign one or more actions that the transmitter will perform if the enhanced event
occurs.
Procedure
1.Select the event that you want to configure.
2.Specify Event Type.
OptionsDescription
HI
LO
IN
OUT
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.
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, endpoints included.
3.Assign a process variable to the event.
Set values for the required setpoints.
4.
• 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.
6.(Optional) Specify the action or actions that the transmitter will perform when the
event occurs.
• With ProLink II: ProLink > Configuration > Discrete Input
• With the Field Communicator: Configure > Alert Setup > Discrete Events > Assign
Discrete Action
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Options for Enhanced Event Action
Options for Enhanced Event ActionTable 6-11:
ActionLabel
ProLink IIProLink IIIField Communicator
Standard
None (default)
Start sensor zero
Start/stop all totalizers
Reset mass total
Reset volume total
Reset gas standard volume
total
Reset all totals
Meter verification
Start meter verification test
NoneNoneNone
Start Sensor ZeroStart Sensor ZeroPerform auto zero
Start/Stop All TotalizationStart/Stop All TotalizationStart/stop totals
Reset Mass TotalReset Mass TotalReset mass total
Reset Volume TotalReset Volume TotalReset volume total
Reset Gas Std Volume TotalReset Gas Std Volume TotalReset gas standard volume total
Reset All TotalsReset All TotalsReset totals
Start Meter VerificationStart Meter Verification
Not available
CAUTION!
Before assigning actions to an enhanced event or discrete input, check the status of the event
or the remote input device. If it is ON, all assigned actions will be performed when the new
configuration is implemented. If this is not acceptable, wait until an appropriate time to assign
actions to the event or discrete input.
6.6Configure digital communications
The digital communications parameters control how the transmitter will communicate
using digital communications.
Your transmitter supports the following types of digital communications:
•HART/Bell 202 over the primary mA terminals
•Modbus/RS-485 over the RS-485 terminals
•Modbus RTU via the service port
Note
The service port responds automatically to a wide range of connection requests. It is not
configurable.
92Micro Motion® Model 1500 Transmitters with Analog Outputs
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