The Emerson logo is a trademark and service mark of Emerson Electric Co. Micro Motion, ELITE, ProLink, MVD and MVD Direct
Connect are marks of one of the Emerson Process Management family of companies. All other trademarks are property of their
respective owners.
• B = 4-wire remote mount to 9-wire remote core processor
• C = 9-wire remote mount
Display code
• 1 = Display with glass lens
• 2 = Backlit display with glass lens
• 3 = No display
• 5 = Backlit display with IIC approval, glass lens
• 7 = Backlit display with non-glass lens
Output option code
• G = PROFIBUS-PA
Software code 1:
G = Concentration measurement application
A = Petroleum measurement (API) application
Software code 2:
C = Smart Meter Verification
Before You Begin
1.1Overview
This chapter provides an orientation to the use of this manual, and includes a configuration overview
flowchart and a pre-configuration worksheet. This manual describes the procedures required to start,
configure, use, maintain, and troubleshoot Micro Motion
PROFIBUS-PA.
®
Model 2700 transmitters with
1.2Safety
Safety messages are provided throughout this manual to protect personnel and equipment. Read each
safety message carefully before proceeding to the next step.
1.3Determining transmitter information
Transmitter options are indicated by the model number located on the transmitter tag. The model
number is a string of the following form:
StartupConfigurationCalibrationBefore You Begin
Configuration and Use Manual1
Before You Begin
1.4PROFIBUS-PA functionality
The transmitter supports the following methods of configuration and operation:
•Configuration methods:
-Device description (EDD) for use with a PROFIBUS configuration tool such as Siemens
Simatic
®
Process Device Manager (PDM). In this manual, the term “EDD” is used to refer
to this type of configuration.
-Direct read and write of PROFIBUS-PA bus parameters.
•Operation methods:
-GSD file with a PROFIBUS host. The transmitter supports two GSD options—
Profile-specific, which is created by PNO, and Manufacturer-specific, which is created by
by Micro Motion in order to implement a larger set of function blocks. See Section 2.5 for
more information about the two GSD options.
In this manual, the term “host” or “PROFIBUS host” is used to refer to this type of
operation.
-Device description (EDD) with PROFIBUS configuration tool (e.g., Simatic PDM). The
EDD provides a superset of the operational functionality of the GSD, plus configuration
capability.
•Identification and maintenance (I&M) functions:
®
-I&M 0
-I&M 1
-I&M 2
-PA I&M 0
The transmitter supports both classic and condensed status byte formats.
•Classic mode conforms to the PROFIBUS-PA Profile v3.01, Section 3.7.3.6.
•Condensed mode conforms to the PROFIBUS-PA Specification June 2005 Amendment 2 to
the PROFIBUS Profile v3.01, Condensed Status and Diagnostic Messages v1.0.
1.5Determining version information
Table 1-1 lists the version information you may need to know and describes how to obtain the
information. This manual assumes transmitter firmware v3.2 or a later version and ProLink v2.92
with the Build 9827 patch or a later version.
Note: The hardware for transmitters with v2.0 and lower firmware is incompatible with the hardware
needed to support v3.0 and later firmware. To upgrade from an earlier firmware version to v3.0 or
higher firmware requires hardware replacement.
With EDDMMI Coriolis Flow > Transducer Block > Device
Information > Software Rev
With displayOFF-LINE MAINT > VER
2Model 2700 Transmitter with PROFIBUS-PA
Before You Begin
Table 1-1Obtaining version information (continued)
ComponentToolMethod
Core processor softwareWith ProLink IINot available
ProLink IIWith ProLink IIHelp > About ProLink II
GSD version
EDD versionText editorOpen file MMIcorflow.DDL and check parameter
(1) There are two GSD options available: Manufacturer-specific and Profile-specific. See Section 2.5 for more information.
(1)
1.6Communication tools
Most of the procedures described in this manual require the use of a communication tool. Table 1-2
lists the communication tools that can be used, with their functionality and requirements.
Note: You can use ProLink II, the EDD, or PROFIBUS bus parameters for transmitter setup and
maintenance. It is not necessary to have more than one of these methods available.
With EDDNot available
With displayOFF-LINE MAINT > VER
Text editorOpen file V3x_057A.gsd or PA139742.GSD and
check parameter GSD_Revision
DD_REVISION
StartupConfigurationCalibrationBefore You Begin
Table 1-2Communication tools for Model 2700 transmitter with PROFIBUS-PA
Functionality
Tool
Transmitter displayPartialPartialTransmitter with display
ProLink IIFullFullProLink II v2.92 or later
(1)
Host
EDDFullFullPDM file set
Bus parametersFullFullNone
(1) There are two GSD options available: Manufacturer-specific and Profile-specific. See Section 2.5 for more information.
PartialNoneGSD file V3x_057A.gsd or
RequirementsView/operationSetup/maintenance
PA139742.GSD
The PDM and GSD files can be downloaded from the following address:
Also available at this address is a document titled Commissioning MVD Profibus PA Documentation
®
Supplement. This supplement will assist you with connecting to the transmitter with Siemens
Simatic
®
Process Device Manager (PDM). If you are using Simatic PDM, download the PDM file set
and follow the EDD instructions in this manual.
Basic information on using the display is provided in Appendix B.
Basic information on ProLink II is provided in Appendix C. For more information, refer to the
ProLink II manual, which is available on the Micro Motion web site (www.micromotion.com).
Although some functions of the Model 2700 transmitter with PROFIBUS-PA may be available
through earlier versions of ProLink II, version 2.92 with the Build 9827 patch or a later version is
required for full configuration, maintenance, and operation.
Configuration and Use Manual3
Before You Begin
Chapter 2
Flowmeter Startup
Chapter 1
Before You Begin
Fill out pre-configuration
worksheet
Apply power
Set node address
Chapter 3
Calibration
OPTIONAL
Characterize the flowmeter
Zero the flowmeter
Verify meter performance
Validate against a standard
Calibrate for density
Calibrate for temperature
Chapter 4
Configuration
Configure AI function block
channels
Set I/O mode
Measurement units
Output scale
Process alarms
Damping
Slug flow
Alarm severity
Gas standard volume
Petroleum measurement
Concentration measurement
Cutoffs
Measurement mode
Device settings
Sensor parameters
Display functionality
Optional:
Configure pressure
compensation
Optional:
Configure temperature
compensation
1.7Planning the configuration
Refer to the configuration overview flowchart in Figure 1-1 to plan transmitter configuration. In
general, perform configuration steps in the order shown here.
Note: Depending on your installation and application, some configuration tasks may be optional.
Note: This manual provides information on topics that are not included in the configuration overview
flowchart, e.g., using the transmitter, troubleshooting, and calibration procedures. Be sure to review
these topics as required.
Figure 1-1Configuration overview
4Model 2700 Transmitter with PROFIBUS-PA
Before You Begin
1.8Pre-configuration worksheet
The pre-configuration worksheet provides a place to record information about your flowmeter and
your application. This information will affect your configuration options as you work through this
manual. You may need to consult with transmitter installation or application process personnel to
obtain the required information.
If you are configuring multiple transmitters, make copies of this worksheet and fill one out for each
individual transmitter.
PRE-CONFIGURATION WORKSHEET FOR TRANSMITTER:
TRANSMITTERSENSOR
MODEL NUMBERMODEL NUMBER
SERIAL NUMBERSERIAL NUMBER
SOFTWARE VERSION
NODE ADDRESS
MEASUREMENT UNITS
MASS FLOWVOLUME FLOW
DENSITYPRESSURE
TEMPERATURE
INSTALLED APPLICATIONS
METER VERIFICATION SOFTWARE
PETROLEUM MEASUREMENT APPLICATION
CONCENTRATION MEASUREMENT APPLICATION
StartupConfigurationCalibrationBefore You Begin
Configuration and Use Manual5
Before You Begin
1.9Flowmeter documentation
Table 1-3 lists documentation sources for additional information.
Table 1-3Flowmeter documentation resources
TopicDocument
Sensor installationSensor documentation
Transmitter installationMicro Motion® Model 1700 and Model 2700
Connecting the transmitter to Simatic PDMCommissioning MVD Profibus PA Documentation
Hazardous area installationSee the approval documentation shipped with the
1.10Micro Motion customer service
For customer service, phone the support center nearest you:
•In the U.S.A., phone
800-522-MASS (800-522-6277) (toll-free)
•In Canada and Latin America, phone +1 303-527-5200 (U.S.A.)
Transmitters: Installation Manual
Supplement
transmitter, or download the appropriate documentation
from the Micro Motion web site (www.micromotion.com)
•In Asia:
-In Japan, phone 3 5769-6803
-In other locations, phone +65 6777-8211 (Singapore)
•In Europe:
-In the U.K., phone 0870 240 1978 (toll-free)
-In other locations, phone +31 (0) 318 495 555 (The Netherlands)
Customers outside the U.S.A. can also email Micro Motion customer service at:
flow.support@emerson.com.
6Model 2700 Transmitter with PROFIBUS-PA
Chapter 2
Startup
2.1Overview
This chapter describes the procedures you should perform the first time you start the flowmeter. You
do not need to use these procedures every time you cycle power to the flowmeter.
The procedures in this section will enable you to:
•Apply power to the flowmeter (Section 2.2)
•Set the node address (Section 2.3)
•Configure the AI block channels (Section 2.4)
•Set the I/O mode of the transmitter (Section 2.5)
•Optional: Configure temperature compensation (Section 2.8)
Note: All procedures provided in this chapter assume that you have established communication with
the transmitter and that you are complying with all applicable safety requirements. See Appendix C or
the documentation for your PROFIBUS host or configuration tool.
2.2Applying power
Before you apply power to the flowmeter, close and tighten all housing covers.
Operating the flowmeter without covers in place creates electrical hazards that can cause death, injury,
or property damage. Make sure all covers are in place before applying power to the transmitter.
Turn on the electrical power at the power supply. The flowmeter will automatically perform
diagnostic routines. If the transmitter has a display, the status LED will turn green and begin to flash
when the transmitter has finished its startup diagnostics.
Note: If this is the initial startup, or if power has been off long enough to allow components to reach
ambient temperature, the flowmeter is ready to receive process fluid approximately one minute after
power-up. However, it may take up to ten minutes for the electronics in the flowmeter to reach thermal
equilibrium. During this warm-up period, you may observe minor measurement instability or
inaccuracy.
StartupConfigurationCalibrationBefore You Begin
Configuration and Use Manual7
Startup
2.3Setting the node address
The factory default setting for the node address is 126. To set the node address:
•With a PROFIBUS host, use the change address function of the host.
2.4Configuring the analog input function block channels
You can set each of the transmitter’s AI function blocks to measure one transducer block channel. The
AI blocks are set at the factory to a default setting that is adequate for most applications, but you can
change the assignment of the AI blocks to meet special needs.
The default channel configuration for each block is shown in Table 2-1.
Table 2-1Default channel configuration
BlockDefault channelDefault units
AI 1Mass flowkg/s
AI 2TemperatureK
AI 3Densitykg/l
AI 4Volume flowm
The available transducer block channels are shown in Table 2-2.
3
/h
Table 2-2Process variables by transducer block channel
Channel value
Process variableSlotIndexValue
11 (0x0B)17 (0x11)0x0B11Volume flow
11 (0x0B)21 (0x15)0x0B15Mass flow
11 (0x0B)25 (0x19)0x0B19Density
11 (0x0B)29 (0x1D)0x0B1DTemperature
11 (0x0B)64 (0x40)0x0B40Gas standard volume flow
11 (0x0B)114 (0x72)0x0B72Pressure
11 (0x0B)160 (0xA0)0x0BA0Drive gain
12 (0x0C)29 (0x1D)0x0C1DPetroluem measurement – corrected density
•With the EDD, bus parameters, or ProLink II, see the menu flowcharts in Figure 2-1.
•With the display, see the menu flowchart in Figure B-14.
Figure 2-1Configuring channels and units – EDD, bus parameters, and ProLink II
StartupConfigurationCalibrationBefore You Begin
Configuration and Use Manual9
Startup
EDDBus parameters
2.5Setting the I/O mode
The transmitter can function in two different I/O modes: Profile-specific and Manufacturer-specific.
The factory default is Manufacturer-specific. The two modes control which function blocks are
available for use, and whether the format of the status byte is “classic” or “condensed.” (See
Appendix D for more information on the format of the status byte.)
•In Profile-specific mode, the transmitter has the use of three AI blocks and one totalizer block.
The status byte output format defaults to classic mode.
•In Manufacturer-specific mode, the transmitter has the use of four AI blocks, four totalizer
blocks, and two AO blocks. The status byte output format defaults to condensed mode.
Refer to Table 2-3 for the slot identifications and blocks permitted by each mode. You must select
modules exactly as described in Table 2-3, or select an empty module for slots that you do not intend
to use. If any modules are left unconfigured, the transmitter will not send data.
•With the EDD or bus parameters, see the menu flowcharts in Figure 2-2.
•With the display, choose
Figure 2-2Setting the I/O mode
There are two GSD files that correspond to the two I/O modes. If you are using a PROFIBUS host
with GSD files to operate the transmitter, you must use the GSD that corresponds to the I/O mode you
have chosen. Table 2-4 lists the GSD file names. Load the correct GSD file into your PROFIBUS host
or configuration tool.
OFFLINE_MAINT > CONFG > IDENT SEL.
10Model 2700 Transmitter with PROFIBUS-PA
Startup
Block: Physical Block 1 (Slot 0)
Index 43 (Condensed status diagnostics)
Status byte format
EDDBus parameters
Note: Set the I/O mode in the Physical Block before loading the GSD file.
Table 2-4PROFIBUS GSD file names
Identification numberGSD file name
Profile specificPA139742.GSD
Manufacturer specificV3x_057A.gsd
2.5.1Overriding the status byte format
Each I/O mode has a default status byte format – classic or condensed. To override this default:
•With the GSD, set the Condensed Status parameterization bit to either 1 (for condensed status)
or 0 (for classic status).
•With the EDD or bus parameters, use the menu flowcharts in Figure 2-3.
Figure 2-3Status byte format
2.6Configuring the totalizer block mode
The behavior of the four totalizer function blocks can be configured in two ways:
•Standard, which provides standard PROFIBUS totalizer function block behavior.
In this mode, the totalizer block will integrate whatever data it receives. The Out value of a
totalizer in this mode has no relationship to the totalizer data reported by the transducer block,
ProLink II, or the display.
•Any of the values in Table 2-5, which cause the totalizer function block to pass through the
specified totalizer value from the transducer block.
Micro Motion recommends using one of these modes, because the totalizer block output will
be more accurate and will match readings taken with ProLink II and the display.
To configure the totalizer block mode:
StartupConfigurationCalibrationBefore You Begin
Configuration and Use Manual11
•With the EDD or bus parameters, refer to the menu flowcharts in Figure 2-4.
•With the display, refer to the menu flowcharts in Figure B-16.
Startup
EDD
Block: Totalizer 1 (Slot 4)
Index 52 (set to Mode value from table)
Mode
Block: Totalizer 1 (Slot 4)
Index 52 (set to Mode value from table)
Block: Totalizer 1 (Slot 4)
Index 52 (set to Mode value from table)
Block: Totalizer 1 (Slot 4)
Index 52 (set to Mode value from table)
Bus parameters
MMI Coriolis Flow >
Function Block
Totalizer 1 >
Parameter
Integrator Function
Block
Totalizer 2 >
Parameter
Totalizer 3 >
Parameter
Totalizer 4 >
Parameter
Selection
Figure 2-4Configuring totalizer function block mode
Table 2-5Process variables by transducer block channel
12(0x0C)49(0x31)0x0C31Concentration measurement – standard volume flow
12(0x0C)50(0x32)0x0C32Concentration measurement – net mass flow
12(0x0C)51(0x33)0x0C33Concentration measurement – net volume flow
12Model 2700 Transmitter with PROFIBUS-PA
Startup
2.7Configuring pressure compensation
Due to process pressure change away from calibration pressure, there can be a change in sensor flow
and density sensitivity. This change is called pressure effect. Pressure compensation corrects for these
changes.
Not all sensors and applications require pressure compensation. Contact Micro Motion Customer
Service before you configure pressure compensation.
Configuring pressure compensation requires three steps:
There are three values involved in pressure compensation:
•Flow factor – The flow factor is the percent change in flow rate per psi. Consult the product
data sheet for your sensor for this value. You will need to reverse the sign of the flow factor.
For example, if the flow factor in the product data sheet is –0.001% per psi, the pressure
compensation flow factor would be +0.001% per psi.
•Density factor – The density factor is the change in fluid density, in g/cm
product data sheet for your sensor for this value. You will need to reverse the sign of the
density factor. For example, if the density factor in the product data sheet is –0.00004 g/cm
per psi, the pressure compensation flow factor would be +0.00004 g/cm
•Flow calibration pressure – The pressure at which the flowmeter was calibrated. Refer to the
calibration document shipped with your sensor. If the data is unavailable, use 20 psi (1,4 bar).
Block: Transducer Block 1 (Slot 11)
Index 116 (flow factor)
Index 117 (density factor)
Index 118 (flow calibration pressure)
Pressure correction
values
Block: Transducer Block 1 (Slot 11)
Index 115 (pressure units)
Pressure units
Block: Transducer Block 1 (Slot 11)
Index 113 (pressure value)
Optional: Fixed
pressure value
View >
Preferences
Select Enable External
Pressure Compensation
Apply
ProLink >
Configuration
Enter values:
Flow factor in Flow factor
box
Density factor in Densfactor box
Flow calibration pressure in
Cal pressure box
Apply
Pressure tab
Set pressure units to
match source
Optional: Enter a fixed
pressure value in the
External Pressure box
EDDBus parameters
ProLink II
2.7.2Enabling pressure compensation
To enable pressure compensation, see the menu flowcharts in Figure 2-5. You will need the three
pressure compensation values from Section 2.7.1.
Figure 2-5Enabling pressure compensation
14Model 2700 Transmitter with PROFIBUS-PA
Startup
Function Block
Analog Output 1
Set IN Channel to
Pressure
Parameters >
General
Analog Output 2
MMI Coriolis Flow
Transducer Block
Compensation
AO Compensation
Note: When setting the IN channel
to Pressure via the EDD, the OUT
channel will be automatically set
to Pressure as well. Setting the IN
channel via bus parameters does
not automatically change the OUT
channel. You must manually set the
OUT channel to Pressure or the
block will go into Out of Service
mode.
2.7.3Configuring a pressure source
You will need to choose one of two sources for pressure data:
•Analog Output function block – This option allows you to poll for pressure data from an
external pressure source.
•Fixed pressure data – This option uses a known, constant pressure value.
Note: If you configure a fixed pressure value, ensure that it is accurate. If you configure polling for
pressure, ensure that the external pressure measurement device is accurate and reliable.
If you configure pressure compensation to use an AO block for pressure compensation, the other AO
block remains available for temperature compensation. However, only one of the AO blocks can be
set up for external pressure.
To configure fixed pressure data, refer to the menu flowcharts in Figure 2-5.
To configure an AO function block for pressure compensation:
•With the EDD, refer to the flowchart in Figure 2-6.
•With bus parameters, refer to the flowchart in Figure 2-7.
•With the display, refer to the menu flowcharts in Figure B-15.
StartupConfigurationCalibrationBefore You Begin
Figure 2-6Configuring an AO function block for pressure compensation – EDD
Configuration and Use Manual15
Startup
Block: Analog Output Block (Slots 9 and 10)
Index 37 (IN channel), value = 0x0b72
Index 38 (OUT channel), value = 0x0b72
Configure channel
Block: Transducer Block 1 (Slots 11)
Index 121 (AO Compensation), value = 1
Configure channel
MMI Coriolis Flow >
Transducer Block >
Compensation >
Temperature
Enable Disable Ext
Temp
EDD
Block: Transducer Block 1 (Slot 11)
Index 110 (enable temperature compensation)
Enable temperature
comp.
Bus parameters
View >
Preferences
Select Use External
Temperature
Apply
ProLink II
Figure 2-7Configuring an AO function block for pressure compensation – Bus parameters
2.8Configuring temperature compensation
External temperature compensation can be used with the petroleum measurement application or the
enhanced density application:
•If external temperature compensation is enabled, an external temperature value (or a fixed
temperature value), rather than the temperature value from the Coriolis sensor, is used in
petroleum measurement or enhanced density calculations only. The temperature value from
the Coriolis sensor is used for all other calculations.
•If external temperature compensation is disabled, the temperature value from the Coriolis
sensor is used in all calculations.
Configuring temperature compensation requires two steps:
1. Enabling external temperature compensation (Section 2.8.1)
2. Configuring a temperature source (Section 2.8.2)
2.8.1Enabling external temperature compensation
To enable temperature compensation, refer to the flowcharts in Figure 2-8.
Figure 2-8Enabling external temperature compensation
16Model 2700 Transmitter with PROFIBUS-PA
Startup
Function Block
Analog Output 1
Set IN Channel to
Temperature
Parameters >
General
Analog Output 2
MMI Coriolis Flow
Transducer Block
Compensation
AO Compensation
Note: When setting the IN
channel to Temperature via the
EDD, the OUT channel will be
automatically set to
Temperature as well. Setting
the IN channel via bus
parameters does not
automatically change the OUT
channel. You must manually set
the OUT channel to
Temperature or the block will
go into Out of Service mode.
Block: Analog Output Block (Slots 9 and 10)
Index 37 (IN channel), value = 0x0b1D
Index 38 (OUT channel), value = 0x0b6F
Configure channel
Block: Transducer Block 1 (Slots 11)
Index 121 (AO Compensation), value = 1
Configure channel
2.8.2Configuring a temperature source
External temperature data is reported through an analog output (AO) function block. The transmitter
has two AO blocks, each of which can be assigned to a compensation variable channel.
To configure an AO function block for temperature compensation:
•With the EDD, refer to the flowchart in Figure 2-9.
•With bus parameters, refer to the flowchart in Figure 2-10.
•With the display, refer to the flowcharts in Figure B-15.
Figure 2-9Configuring an AO function block for temperature compensation – EDD
StartupConfigurationCalibrationBefore You Begin
Configuration and Use Manual17
Figure 2-10 Configuring an AO function block for temperature compensation – Bus parameters
18Model 2700 Transmitter with PROFIBUS-PA
Chapter 3
Calibration
3.1Overview
This chapter describes the following procedures:
•Characterization (Section 3.3)
•Smart Meter Verification (Section 3.4)
•Meter validation and adjusting meter factors (Section 3.5)
•Zero calibration (Section 3.6)
•Density calibration (Section 3.7)
•Temperature calibration (Section 3.8)
Note: All procedures provided in this chapter assume that you have established communication with
the transmitter and that you are complying with all applicable safety requirements. See Appendix C or
the documentation for your PROFIBUS host or configuration tool.
StartupConfigurationCalibrationBefore You Begin
3.2Characterization, Smart Meter Verification, meter validation, and calibration
There are four procedures:
•Characterization – adjusts the transmitter to compensate for the unique traits of the sensor
with which it is paired
•Smart Meter Verification – establishing confidence in the sensor’s performance by analyzing
secondary variables that are highly correlated with flow and density calibration factors
•Meter validation – confirming performance by comparing the sensor’s measurements to a
primary standard
•Calibration – establishing the relationship between a process variable (flow, density, or
temperature) and the signal produced by the sensor, or establishing the transmitter’s response
to a zero-flow condition.
Meter validation, characterization, and calibration are available on all Model 2700 transmitters. Smart
Meter Verification is available only if the Smart Meter Verification option was ordered with the
transmitter.
These four procedures are discussed and compared in Sections 3.2.1 through 3.2.4. Before performing
any of these procedures, review these sections to ensure that you will be performing the appropriate
procedure for your purposes.
Configuration and Use Manual19
Calibration
3.2.1Characterization
Characterizing the flowmeter adjusts the transmitter to compensate for the unique traits of the sensor
it is paired with. Characterization parameters (sometimes called “calibration factors”) describe the
sensor’s sensitivity to flow, density, and temperature.
If the transmitter and the sensor were ordered together as a Coriolis flowmeter, then the flowmeter has
already been characterized. Under some circumstances (typically when pairing a sensor and
transmitter together for the first time), you may need to re-enter characterization data. If you are
unsure about whether you should characterize your flowmeter, contact Micro Motion Customer
Service.
3.2.2Smart Meter Verification
Smart Meter Verification evaluates the structural integrity of the sensor tubes by comparing current
tube stiffness to the stiffness measured at the factory. Stiffness is defined as the load per unit
deflection, or force divided by displacement. Because a change in structural integrity changes the
sensor’s response to mass and density, this value can be used as an indicator of measurement
performance. Changes in tube stiffness are typically caused by erosion, corrosion, or tube damage.
Smart Meter Verification does not affect measurement in any way. Micro Motion recommends
performing Smart Meter Verification at regular intervals.
3.2.3Meter validation and meter factors
Meter validation compares a measurement value reported by the transmitter with an external
measurement standard. Meter validation requires one data point.
Note: For meter validation to be useful, the external measurement standard must be more accurate
than the sensor. See the sensor’s product data sheet for its accuracy specification.
If the transmitter’s mass flow, volume flow, or density measurement is significantly different from the
external measurement standard, you may want to adjust the corresponding meter factor. A meter
factor is the value by which the transmitter multiplies the process variable value. The default meter
factors are
1.0, resulting in no difference between the data retrieved from the sensor and the data
reported externally.
Meter factors are typically used for proving the flowmeter against a Weights & Measures standard.
You may need to calculate and adjust meter factors periodically to comply with regulations.
3.2.4Calibration
The flowmeter measures process variables based on fixed points of reference. Calibration adjusts
those points of reference. Three types of calibration can be performed:
•Zero
•Density calibration
•Temperature calibration
Density and temperature calibration require two data points (low and high) and an external
measurement for each. The density and temperature calibration procedure changes the offset and/or
the slope of the line that represents the relationship between process density and the reported density
value, or the relationship between process temperature and the reported temperature value.
Note: For density or temperature calibration to be useful, the external measurements must be
accurate.
20Model 2700 Transmitter with PROFIBUS-PA
Calibration
Zero calibration requires only that flow through the sensor is stopped.
Flowmeters are calibrated at the factory, and normally do not need to be calibrated in the field.
Calibrate the flowmeter only if you must do so to meet regulatory requirements. Contact
Micro Motion before calibrating your flowmeter.
Note: Micro Motion recommends using meter validation and meter factors, rather than calibration, to
prove the meter against a regulatory standard or to correct measurement error.
3.2.5Comparison and recommendations
When choosing among Smart Meter Verification, meter validation, and calibration, consider the
following factors:
•Process and measurement interruption
-Smart Meter Verification provides an option that allows process measurement to continue
during the test.
-Meter validation for density does not interrupt the process. However, meter validation for
mass flow or volume flow requires process down-time for the length of the test.
-Calibration requires process down-time. In addition, density and temperature calibration
require replacing the process fluid with low-density and high density fluids, or
low-temperature and high-temperature fluids. Zero calibration requires stopping flow
through the sensor.
StartupConfigurationCalibrationBefore You Begin
•External measurement requirements
-Smart Meter Verification does not require external measurements.
-Zero calibration does not require external measurements.
-Density calibration, temperature calibration, and meter validation require external
measurements. For good results, the external measurement must be highly accurate.
•Measurement adjustment
-Smart Meter Verification is an indicator of sensor condition, but does not change
flowmeter internal measurement in any way.
-Meter validation does not change flowmeter internal measurement in any way. If you
decide to adjust a meter factor as a result of a meter validation procedure, only the reported
measurement is changed—the base measurement is not changed. You can always reverse
the change by returning the meter factor to its previous value.
-Calibration changes the transmitter’s interpretation of process data, and accordingly
changes the base measurement. If you perform a zero calibration, you can return to the
factory zero (or, if using ProLink II, the previous zero). However, if you perform a density
calibration or a temperature calibration, you cannot return to the previous calibration
factors unless you have manually recorded them.
Micro Motion recommends obtaining the Smart Meter Verification transmitter option and performing
Smart Meter Verification on a regular basis.
Configuration and Use Manual21
Calibration
3.3Performing a characterization
Characterizing a flowmeter involves entering parameters that are printed on the sensor tag.
3.3.1Characterization parameters
The characterization parameters that must be entered depend on the sensor type: “T-Series” or
“Other,” as listed in Table 3-1. The “Other” category includes all Micro Motion sensors except
T-Ser ies .
The characterization parameters are provided on the sensor tag. The format of the sensor tag varies
depending on your sensor’s date of purchase. See Figures 3-1 and 3-2 for illustrations of newer and
older sensor tags.
Table 3-1Sensor characterization parameters
Bus parameter
Characterization dataEDD label
(1)
K1
(1)
K2
(1)
FD
(1)
D1
(1)
D2
DT or TC
Flow cal
FCF
FT
(1)
(2)
(2)
(2)
FTGFTG103✓
FFQFFQ104✓
DTGDTG105✓
DFQ1DFQ1106✓
DFQ2DFQ2107✓
(1) See the section entitled “Density calibration factors.”
(2) See the section entitled “Flow calibration values.”
K192✓✓
K293✓✓
FD94✓✓
D197✓✓
D298✓✓
Density Temp Coeff (DT)102✓✓
FD Value99✓
FD Value99✓
FD Value99✓
index
Sensor type
T- Ser i e sO t her
22Model 2700 Transmitter with PROFIBUS-PA
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