Endress+Hauser Proline t-mass 65 MODBUS RS485 User manual

BA00116D/06/EN/13.10
71123867
Valid as of version
V 3.06.XX (Device software)
Description of Device Functions
Proline t-mass 65
MODBUS RS485
Thermal Mass Flow Measuring System

Proline t-mass 65 MODBUS RS485 Table of contents
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Table of contents
1 The function matrix: layout and use. . . 4
2 Illustration of the function matrix. . . . . 5
3 MEASURING VALUES . . . . . . . . . . . . . 7
4 SYSTEM UNITS . . . . . . . . . . . . . . . . . . 8
5 QUICK SETUP . . . . . . . . . . . . . . . . . . 11
6 OPERATION . . . . . . . . . . . . . . . . . . . 23
7 USER INTERFACE . . . . . . . . . . . . . . . 25
8 TOTALIZER 1/2. . . . . . . . . . . . . . . . . 28
9 HANDLING TOTALIZER . . . . . . . . . . 30
10 STATUS INPUT . . . . . . . . . . . . . . . . . 31
11 COMMUNICATION. . . . . . . . . . . . . . 33
12 PROCESS PARAMETER . . . . . . . . . . . 35
13 GAS . . . . . . . . . . . . . . . . . . . . . . . . . . 39
14 HEAT FLOW . . . . . . . . . . . . . . . . . . . 44
15 SYSTEM PARAMETER . . . . . . . . . . . . 46
16 SENSOR DATA. . . . . . . . . . . . . . . . . . 47
17 SUPERVISION . . . . . . . . . . . . . . . . . . 51
18 SIMULATION SYSTEM. . . . . . . . . . . . 52
19 SENSOR VERSION . . . . . . . . . . . . . . . 53
20 AMPLIFIER VERSION . . . . . . . . . . . . 54
21 Factory settings . . . . . . . . . . . . . . . . . 55
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

The function matrix: layout and use Proline t-mass 65 MODBUS RS485
4Endress+Hauser
1 The function matrix: layout and use
The function matrix is a two-level construction: the groups form one level and the groups' functions
the other. The groups are the highest-level grouping of the control options for the measuring device.
A number of functions is assigned to each group. You select a group in order to access the individual
functions for operating and configuring the measuring device.
An overview of all the groups available is provided in the table of contents on Page 3 and in the
graphic representation of the function matrix on Page 6. Page 6 also contains an overview of all the
functions available with the page references to the specific function description. A description of the
individual functions is provided on page 7 and onwards.
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Proline t-mass 65 MODBUS RS485 Illustration of the function matrix
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2 Illustration of the function matrix
Groups/function groups Functions
MEASURING VALUES ä7 MASS FLOW CORRECTED VOLUME
FLOW HEAT FLOW TEMPERATURE

SYSTEM UNITS ä8 UNIT MASS FLOW UNIT CORRECTED
VOLUME FLOW
UNIT CALORIFIC VALUE
MASS
UNIT CALORIFIC VALUE
CORRECTED VOLUME
UNIT HEAT FLOW UNIT PRESSURE UNIT TEMPERATURE UNIT DENSITY
UNIT LENGTH
QUICK SETUP ä11 QUICK SETUP
COMMISSIONING
QUICK SETUP
COMMUNICATION QUICK SETUP SENSOR QUICK SETUP GAS
QUICK SETUP PRESSURE QUICK SETUP HEAT FLOW T-DAT SAVE/LOAD
OPERATION ä23 LANGUAGE ACCESS CODE DEFINE PRIVATE CODE STATUS ACCESS
ACCESS CODE COUNTER
USER INTERFACE ä25 ASSIGN LINE 1 ASSIGN LINE 2 100% VALUE LINE 1 100% VALUE LINE 2
FORMAT DISPLAY DAMPING CONTRAST LCD BACKLIGHT
TEST DISPLAY
TOTALIZER 1/2 ä28 ASSIGN TOTALIZER SUM OVERFLOW UNIT TOTALIZER
RESET TOTALIZER
HANDLING
TOTALIZER ä30 RESET ALL TOTALIZERS FAILSAFE MODE

STATUS INPUT ä31 ASSIGN STATUS INPUT ACTIVE LEVEL MINIMUM PULSE WIDTH ACTUAL STATUS INPUT
SIMULATION STATUS
INPUT
VALUE SIMULATION
STATUS INPUT
COMMUNICATION ä33 TAG NAME FIELDBUS ADDRESS BAUDRATE TRANSMISSION MODE
PARITY BYTE ORDER DELAY TELEGRAM REPLY WRITE PROTECTION
SCAN LIST REG. 1...16
PROCESS PARAMETER ä35 PROCESS PRESSURE 1 PROCESS PRESSURE 2 PROCESS PRESSURE REFERENCE PRESSURE

REFERENCE
TEMPERATURE REFERENCE DENSITY NET CALORIFIC VALUE GROSS CALORIFIC VALUE
MOLE % GAS 1 ASSIGN LOW FLOW CUT
OFF
ON-VALUE LOW FLOW
CUT OFF
OFF-VALUE LOW FLOW
CUT OFF
ZERO POINT ADJUST INSTALLATION FACTOR

Illustration of the function matrix Proline t-mass 65 MODBUS RS485
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GAS ä39 SELECT GROUP NUMBER OF GASES GAS TYPE 1 MOLE % GAS 1
DESCRIPTION CORRECTION FACTOR REFERENCE DENSITY GAS TYPE 2 to 8
MOLE % GAS 2 to 8 CHECK VALUES SAVE CHANGES
HEAT FLOW ä44 CALORIFIC VALUE TYPE MODE 1 HEATING VALUE 1 MODE 2
HEATING VALUE 2
REFERENCE
COMBUSTION
TEMPERATURE
SYSTEM PARAMETER ä46 POSITIVE ZERO RETURN FLOW DAMPING

SENSOR DATA ä47 PIPE TYPE PIPE STANDARD NOMINAL DIAMETER OUTER DIAMETER
WALL THICKNESS INTERNAL DIAMETER INTERNAL HEIGHT INTERNAL WIDTH
MOUNTING MOUNTING SET LENGTH INSERTION DEPTH ZERO POINT
FLOW CONDITIONER
SUPERVISION ä51 ACTUAL SYSTEM
CONDITION
PREVIOUS SYSTEM
CONDITION ALARM DELAY SYSTEM RESET
OPERATION HOURS HOURS SINCE RESET
SIMULATION SYSTEM ä52 SIMULATION FAILSAFE
MODE
SIMULATION
MEASURAND
VALUE SIMULATION
MEASURAND

SENSOR VERSION ä53 SENSOR TYPE SERIAL NUMBER TRANSDUCER SERIAL
NUMBER
SOFTWARE REVISION
NUMBER S-DAT

PRE-AMPLIFIER
SOFTWARE REVISION
NUMBER
PRE-AMPLIFIER
HARDWARE REVISION
NUMBER
AMPLIFIER VERSION ä54 DEVICE SOFTWARE HARDWARE REVISION
NUMBER AMPLIFIER
SOFTWARE REVISION
NUMBER AMPLIFIER
SOFTWARE REVISION
NUMBER T-DAT
I/O MODULE TYPE SOFTWARE REVISION
NUMBER I/O MODULE
Groups/function groups Functions

Proline t-mass 65 MODBUS RS485 MEASURING VALUES
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3 MEASURING VALUES
Function description, MEASURING VALUES group
!Note!
The engineering unit of the measured variable displayed here is configured in the SYSTEM UNITS group (ä8)
MASS FLOW Description
The currently measured mass flow appears on the display.
Display:
5-digit floating-point number, including unit
e.g. 462.87 kg/h; 731.63 lb/min
MODBUS register:
Data type:
Access:
2007
Float
read
CORRECTED VOLUME FLOW Description
The calculated corrected volume flow appears on the display.
The corrected volume flow is calculated from the measured mass flow and the
reference density of the gas.
Display:
5-digit floating-point number, including unit
e.g. 104.97 Nm3/h; 110.73 Sm3/h; etc.
MODBUS register:
Data type:
Access:
2011
Float
read
HEAT FLOW Description
The calculated heat flow appears on the display.
Display:
5-digit floating-point number, including unit,
(e.g. 175.00 kJ/h; 50.000 kBtu/h; etc.)
MODBUS register:
Data type:
Access:
2005
Float
read
TEMPERATURE Description
The currently measured temperature appears on the display.
Display:
5-digit fixed-point number, incl. unit and sign
e.g. –23.4 °C, 160.0 °F, 295.4 K
MODBUS register:
Data type:
Access:
2017
Float
read

SYSTEM UNITS Proline t-mass 65 MODBUS RS485
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4SYSTEMUNITS
Function description, SYSTEM UNITS group
UNIT MASS FLOW Description
For selecting the unit required and displayed for the mass flow.
The unit you select here is also valid for:
• Low flow cut off
The following time units can be selected:
s = second, m = minute, h = hour, d = day
Options
SI:
0…3 = Gram g/time unit
4…7 = Kilogram kg/time unit
8…11 = Ton t/time unit
US:
12…15 = Ounce oz/time unit
16…19 = Pound lb/time unit
20…23 = Ton ton/time unit
Factory setting
kg/h or lb/h (country dependent ä55)
MODBUS register:
Data type:
Access:
2101
Integer
read/write
UNIT CORRECTED VOLUME
FLOW
Description
For selecting the unit required and displayed for the corrected volume flow.
The unit you select here is also valid for:
• Low flow cut off
The following time units can be selected:
s = second, m = minute, h = hour, d = day
Options
SI:
0…3 = Norm cubic meter Nm³/time unit
4…7 = Norm liter Nl/time unit
US:
8…11 = Standard cubic meter Sm³/time unit
12…15 = Standard cubic feet Scf/time unit
Factory setting
Nm³/h or Sm³/h (country dependent ä55)
MODBUS register:
Data type:
Access:
2105
Integer
read/write
UNIT CALORIFIC VALUE
MASS
Description
For selecting the unit required and displayed for the gross/net calorific value.
Options (SI units)
0 = kJ/kg
1 = MJ/kg
2 = kWh/kg
3 = MWh/kg
4 = kcal/kg
5 = Mcal/kg
Options (US units)
6 = Btu/lb
7 = kBtu/lb
Factory setting
MJ/kg or kBtu/lb (country dependent ä55)
MODBUS register:
Data type:
Access:
2153
Integer
read/write

Proline t-mass 65 MODBUS RS485 SYSTEM UNITS
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UNIT CALORIFIC VALUE
CORRECTED VOLUME
Description
For selecting the unit required and displayed for the calorific value based on the
corrected volume.
Options (SI units):
0 = kJ/Nm³
1 = MJ/Nm³
2 = kWh/Nm³
3 = MWh/Nm³
4 = kcal/Nm³
5 = Mcal/Nm³
Options (US units):
6 = Btu/Scf
7 = kBtu/Scf
Factory setting
MJ/Nm³ or kBtu/Scf (country dependent ä55)
MODBUS register:
Data type:
Access:
2156
Integer
read/write
UNIT HEAT FLOW Description
For selecting the unit required and displayed for the heat flow.
The following time units can be selected:
s = second, m = minute, h = hour, d = day
Options (SI unit)
0 = kW
1 = MW
2…5 = kJ/time unit
6…9 = MJ/time unit
10…13 = GJ/time unit
14…19 = kcal/time unit
18…21 = Mcal/time unit
22…25 = Gcal/time unit
Options (US unit)
26 = tons
27…30 = kBtu/time unit
31…34 = MBtu/time unit
35…38 = GBtu/time unit
Factory setting
kW or kBtu/h (country dependent ä55)
MODBUS register:
Data type:
Access:
2132
Integer
read/write
UNIT PRESSURE Description
Use this function to select the unit for pressure.
The unit you select here is also valid for:
• Process pressure (see PROCESS PRESSURE group, ä35)
• Reference pressure (see REFERENCE PRESSURE group, ä35)
Options
0 = bar a (bar absolute)
1 = psi a (pounds per square inch absolute)
4 = kPa a (Kilopascal absolute)
Factory setting
bar a or psi a (country dependent ä55)
MODBUS register:
Data type:
Access:
2130
Integer
read/write
UNIT TEMPERATURE Description
For selecting the unit required and displayed for the temperature.
Options
0 = °C (CELSIUS)
1 = K (KELVIN)
2 = °F (FAHRENHEIT)
3 = R (RANKINE)
Factory setting
°C or °F (country dependent ä55)
MODBUS register:
Data type:
Access:
2009
Integer
read/write
Function description, SYSTEM UNITS group

SYSTEM UNITS Proline t-mass 65 MODBUS RS485
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UNIT DENSITY Description
For selecting the unit required and displayed for the calculated gas density at
process conditions. The unit you select here is also valid for:
• Reference density (see REFERENCE DENSITY group, ä36)
Options
SI:
0…1 = g/cm³; g/cc
2…4 = kg/dm³; kg/l; kg/m³
US:
11 = lb/ft³
Factory setting
kg/m³ or lb/ft³ (country dependent ä55)
MODBUS register:
Data type:
Access:
2107
Integer
read/write
UNIT LENGTH Prerequisite
This function is only available for the insertion sensor (t-mass 65I)
Description
For selecting the unit of length required and displayed for the pipe internal
diameter or the inner dimensions of rectangular ducts (see SENSOR DATA
function group ä49).
Options
0 = MILLIMETER
1 = INCH
Factory setting
MILLIMETER or INCH (country dependent ä55)
MODBUS register:
Data type:
Access:
2125
Integer
read/write
Function description, SYSTEM UNITS group

Proline t-mass 65 MODBUS RS485 QUICK SETUP
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5QUICKSETUP
Function description, QUICK SETUP group
QUICK SETUP
COMMISSIONING
Description
Starts the Quick Setup menu for commissioning.
For a flowchart of the QUICK SETUP COMMISSIONING: ä13
Options
0 = NO
1 = YES
Factory setting
NO
QUICK SETUP
COMMUNICATION
Description
Use this function to start the setup menu for communication parameters
For a flowchart of the QUICK SETUP COMMUNICATION: ä11
Options
0 = NO
1 = YES
Factory setting
NO
QUICK SETUP SENSOR Prerequisite
This function is only available for insertion sensors (t-mass 65I).
Description
Use this function to start the application-specific setup to calculate the insertion
depth for the insertion sensor.
For a flowchart of the QUICK SETUP SENSOR: ä16
Options
0 = NO
1 = YES
Factory setting
NO
QUICK SETUP GAS Description
Use this function to start the application-specific setup for programming the gas
or gas mixture.
For a flowchart of the QUICK SETUP GAS: ä17.
Options
0 = NO
1 = YES
Factory setting
NO
QUICK SETUP PRESSURE Description
Use this function to start the application-specific setup for programming the
process pressure for each gas group.
For a flowchart of the QUICK SETUP PRESSURE: ä19
Options
0 = NO
1 = YES
Factory setting
NO

QUICK SETUP Proline t-mass 65 MODBUS RS485
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QUICK SETUP HEAT FLOW Description
Use this function to start the application-specific setup for heat flow.
For a flowchart of the QUICK SETUP HEAT FLOW: ä20
Options
0 = NO
1 = YES
Factory setting
NO
T-DAT SAVE/LOAD Description
Use this function to save the configuration/settings of the transmitter to a
transmitter-DAT (T-DAT), or to load a configuration from the T-DAT to the
EEPROM (manual backup function).
For a flowchart of the T-DAT SAVE/LOAD: ä22
Application examples:
• After commissioning, the current measuring point parameters can be saved to
the T-DAT as a backup.
• If the transmitter is replaced for some reason, the data from the T-DAT can
be loaded into the new transmitter (EEPROM).
Options
0 = CANCEL
1 = SAVE (from the EEPROM to the T-DAT)
2 = LOAD (from the T-DAT to the EEPROM)
!Note!
• If the target device has an older software version, the message "TRANSM.
SW-DAT" is displayed during startup. Then only the "SAVE" option is
available.
•LOAD
This option is only possible:
– if the target device has the same software version as, or a more recent
software
version than, the source device or
– if the T-DAT contains valid data that can be called up
•SAVE
This function is always available.
Factory setting
CANCEL
MODBUS register:
Data type:
Access:
2401
Integer
read/write
Function description, QUICK SETUP group

Proline t-mass 65 MODBUS RS485 QUICK SETUP
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5.1 Quick Setup "Commissioning"
A0005510-en
Fig. 1: QUICK SETUP COMMISSIONING- menu for straightforward configuration of the major device functions
!Note!
The display returns to the QUICK SETUP cell if you press the ESC key combination (Q) during
programming of a parameter anywhere in the menu.
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XXX.XXX.XX
p
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q
Yes No
Configure another system unit ?
Corr. Vol. FlowMass flow Density
Selection system units
Temperature Quit
Unit
Corr. Vol. Flow
Unit
Mass Flow Unit
Density
Language
Pre-setting
Quick Setup
HOME-POSITION
QS
Commission
Unit
Temperature
Selection pre-settings
Reference
Temperature
Reference
Pressure
Selection totalizer
Unit
Totalizer 2
Assign
Totalizer 2
Assign
Gas Group
Delivery settings Actual settings
Heat Flow
Unit
Heat Flow
Unit
Quantity Heat
Pressure
Unit
Pressure
Totalizer 1 Totalizer 2
Yes No
Configure another ?totalizer
Unit
Totalizer 1
Assign
Totalizer 1
Assign
Gas Group
Unit Calorific
Value Mass
Unit Calorific
Val. Corr. Vol.
QUICK SETUP - COMMISSION
Use the Oor Skey at the prompt "QS-COMMISSION NO" and the device access code entry appears. Enter the device access
code "65" and press F; programming is enabled. The prompt "QS-COMMISSION NO" appears. Use the Oor Skey to
change NO to YES and press F.
LANGUAGE
Use the Oor Skey to select the required language and continue with F.
PRE-SETTING
mSelect ACTUAL SETTINGS to continue programming the device and go to the next level or select DELIVERY SETTINGS
to reset the device. The device restarts and returns to the Home position.
- ACTUAL SETTINGS are the actual programmed parameters in the device
- DELIVERY SETTINGS are the programmed parameters (factory settings plus customer
specific settings) originally delivered with the device

QUICK SETUP Proline t-mass 65 MODBUS RS485
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SYSTEM UNITS
Select required system unit function and carry out parameterization or select QUIT to return to the QUICK SETUP function
if no further programming is required.
nOnly units not yet configured in the current setup are available for selection in each cycle.
oThe YES option remains visible until all the units have been configured.
NO is the only option displayed when no further units are available.
SELECTION TOTALIZER
pSelect a totalizer and assign a flow variable, gas group and unit.
qConfigure another totalizer? Select YES to setup a second totalizer or NO to continue.

Proline t-mass 65 MODBUS RS485 QUICK SETUP
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5.2 Quick Setup "Communication"
To establish serial data transfer, various arrangements between the MODBUS master and MODBUS
slave are required which have to be taken into consideration when configuring various functions.
These functions can be configured quickly and easily by means of the Communication Quick Setup.
A0005503-en
Fig. 2: Quick Setup communication
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E
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XXX.XXX.XX Quick Setup
HOME
POSITION
QS
Communication
Fieldbus
Address
Baudrate
Transmission
Mode
Parity
Byte Order
Delay
Telegram Reply
Settings for the Communication Setup menu:
Function name Suggested settings Description
Call up through the function matrix:
QUICK SETUP QUICK SETUP KOMMUNIKATION ä11
QUICK SETUP KOMMUNIKATION JA ä11
Basic configuration: Factory setting:
FIELDBUS ADDRESS 247 ä33
BAUDRATE 19200 BAUD ä33
TRANSMISSION MODE RTU ä33
PARITY EVEN ä33
BYTE ORDER 1 - 0 - 3- 2 ä34
DELAY TELEGRAM REPLY 10 ms ä34

QUICK SETUP Proline t-mass 65 MODBUS RS485
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5.3 Quick Setup "Sensor"
It is essential that the insertion sensor is setup according to the actual pipe or duct and then installed
at the calculated insertion depth. This Quick Setup guides you systematically through the procedure
to setup the sensor.
!Note!
The QUICK SETUP SENSOR function is not available for flanged type sensors.
A0009910-en
PIPE TYPE
m• CIRCULAR
– in case that the pipe is of a standard type, then parameterize functions PIPE STANDARD and NOMINAL
DIAMETER
– In case that the pipe is a non-standard type, then select OTHERS in the function PIPE STANDARD and
parameterize the functions WALL THICKNESS and OUTER DIAMETER.
– The function INTERNAL DIAMETER displays the calculated internal diameter and is read only.
• RECTANGULAR
– Enter the INTERNAL HEIGHT, INTERNAL WIDTH and WALL THICKNESS of the duct
– Select the MOUNTING orientation of the sensor: HORIZONTAL or VERTICAL
MOUNTING SET LENGTH
nEnter the measured length of the mounting set (including the compression fitting).
INSERTION DEPTH
oThis function calculates the insertion depth value for the mounting of the sensor.
This function is read only.
Press Fto save settings and return to QUICK SETUP SENSOR group.
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HOME-POSITION
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INSERTION
DEPH
MOUNTING SET
LENGTH
QUICKSETUP QS
SENSOR
PIPE
STANDARD INTERNAL
HEIGHT
NOMINAL
DIAMETER INTERNAL
WIDTH
UNIT
LENGTH
WALL
THICKNESS
WALL
THICKNESS
MOUNTING
RECTANGULARCIRCULAR
OUTER
DIAMETER
INTERNAL
DIAMETER
PIPE
TYPE
Selection Pipe Type

Proline t-mass 65 MODBUS RS485 QUICK SETUP
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5.4 "Gas" Quick Setup menu
The device can be setup with 1 or 2 individual gas groups in memory. This means that up to 2
different gas flow streams (e.g. nitrogen and argon) can be measured in a single pipe with one
flowmeter.
In the case of 2 gas groups being used, a digital input can be assigned to switch between the gas
groups or, alternatively, the switch can be done manually via a function in the device software.
A0009907-en
Programming a gas group
The device allows flexible change of the gas group parameters, independent of the original factory
setup and calibration
A gas group can be programmed as:
–onesinglegasor
– one gas mixture (of up to 8 components)
A single gas can be:
– selected from a list of standard gases or
– setup for other suitable types of gases, such as Ozone, using manual correction factors and the
option called SPECIAL GAS. This requires application evaluation at the factory - consult your
Endress+Hauser representative prior to using this function.
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XXX.XXX.XX
HOME-POSITION
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QUICKSETUP QS
GAS
DESCRIPTION 1
CORRECTION
FACTOR 1
REFERENCE
DENSITY1
GAS GROUP 1
NUMBER OF
GASES
GAS TYPE
2…8
MOLE %GAS
2…8
CHECK
VALUES
CANCEL
YES NO
Selection
SAVE CHANGES?
Selection of Gas Group
Configure Another Group?
DESCRIPTION 2
MOLE %GAS 1
MOLE %GAS 1
QUIT
GAS GROUP 2
NUMBER OF
GASES
GAS TYPE 1 GAS TYPE 1
GAS TYPE
2…8
MOLE %GAS
2…8
CHECK
VALUES
CORRECTION
FACTOR 2
REFERENCE
DENSITY2
YESDISCARD
SELECT
GROUP
ANALYZER
INPUTANALYZER INPUT

QUICK SETUP Proline t-mass 65 MODBUS RS485
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Setting or viewing the active gas group
Go to the function SELECT GROUP (ä40) and simply select 1 or 2 and then exit using
ESC (Qkeys simultaneously). No save function is necessary.
!Note!
This Quick Setup Gas function is not available if an in-situ calibration function has been performed
on the device as the in-situ calibration curve refers to the sensor power at each recorded flow point.
Therefore, the programmed gas settings become redundant.
Performing the Quick Setup
1. GAS GROUP
Use the Oor S key to select the required GAS GROUP and continue with F.
– select the NUMBER OF GASES in the group from 1 to 8
– select the GAS TYPE from the choose list.
– enter the MOLE % for each GAS TYPE (only if NUMBER OF GASES is 2 and more).
– The error message CHECK VALUES appears if the total mixture % does not equal 100%. Go
back and check the mixture settings.
2. SAVE CHANGES?
– Select YES to save changes to the GAS GROUP and activate them. Press Fto continue or
– Select CANCEL to save the entered settings in buffer memory but not activate them for
measurement. If this function is selected, then it will be necessary to come back to this gas
group and save it at a later stage.
– Select DISCARD to clear the last changes and return to CONFIGURE GROUP to make new
settings.
3. ANOTHER GAS GROUP?
– Select YES to continue to the CONFIGURE GROUP function. Use the + or - key to select
another group and proceed as per above instructions.
– Select NO to exit to the Quick Setup.
!Note!
You can find more detailed information on the GAS GROUP in chapter GAS ä39

Proline t-mass 65 MODBUS RS485 QUICK SETUP
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5.5 "Pressure" Quick Setup menu
Use this Quick Setup to program the individual process pressure for each gas group. If only one gas
group is being used, then only the function PROCESS PRESSURE 1 needs to be programmed,
PROCESS PRESSURE 2 can remain with default settings.
A0009908-en
!Note!
• The device operates with absolute pressure only. Convert any gauge pressures to absolute
pressure.
• If a pressure compensating input is being used, then the input signal value overrides the manually
programmed value. The pressure input value applies to both gas groups. i.e. 2 independent
pressure values are no longer possible.
• This Quick Setup Gas function is not available if an in-situ calibration function has been
performed on the device as the in-situ calibration curve refers to the sensor power at each
recorded flow point. Therefore, the programmed pressure settings become redundant.
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XXX.XXX.XX
HOME-POSITION
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QS
PRESSURE
PROCESS
PRESSURE 2
PROCESS
PRESSURE 1
QUICKSETUP

QUICK SETUP Proline t-mass 65 MODBUS RS485
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5.6 "Heat Flow" Quick Setup menu
The device can calculate and output the heat of combustion of common fuel gases such as methane,
natural gas, propane, butane, ethane and hydrogen.
Use this Quick Setup menu to program the method used to calculate the heating value or calorific
value (CV). The device can be configured to give two independent heating value outputs and
totalized values. For example, the pipeline has either natural gas or propane running at separate
times and the heating value is required for both gases.
A0009909-en
Calculation mode 1 and 2
• The heating value for CALCULATION MODE 1 corresponds to the settings in the function
GAS GROUP 1.
• The heating value for CALCULATION MODE 2 corresponds to the settings in the function
GAS GROUP 2.
!Note!
• If only one gas group is used, then leave mode 2 as default settings.
• The units of measure are selected in the SYSTEM UNITS section ä8.
Auto Gross
The gross heating value (or higher heating value) is the total heat obtained by complete combustion
at constant pressure of a volume of gas in air, including the heat released by the water vapor in the
combustion products (gas, air and combustion products taken at reference combustion temperature
and standard pressure).
Auto Net
The net heating value (or lower heating value) is determined by subtracting the heat of vaporization
of the water vapor from the higher heating value. This treats any water formed as water vapor. The
energy required to vaporize the water therefore is not realized as heat.
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QUICKSETUP QS
HEATFLOW
AUTONET
Selection CALCULATION MODE 1
MANUAL
AUTO GROSS
Selection CALCULATION MODE 2 AUTONET
MANUAL
AUTO GROSS
CALORIFIC
VALUE 2
CALORIFIC
VALUE 1
CALORIFIC
VALUE TYPE
REF. COMBUST.
TEMPERATURE