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CALCULATOR DE DEBIT GAZE NATURALE CU TRADUCTOR MULTIPLU _ p _ Δp

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CALCULATOR DE DEBIT GAZE NATURALE CU TRADUCTOR MULTIPLU _ p _ Δp Powered By Docstoc
					NATURAL GAS FLOW CALCULATOR WITH
 OWN MULTIPLE TRANSDUCER ( p , Δp )
         FARSYS 01

        Operation Manual




                                      1
                           Contents of Chapter 1
                                      ==oOo==




                                                                     Page

1. Aplications                                                               3

      1.1    General description                                       3

2. Presentation of equipment                                                 5

      2.1    Front pannel                                               5
             2.1.1 Components of the front panel                       5
             2.1.2 Characteristics of front panel components                 6
             2.1.3 Metrological stamp                                  7
             2.1.4 Functioning of information protection elements      7

      2.2    Electronic modules                                        7
             2.2.1 Basic module (procurement-calculation-metering)           8
             2.2.2 Interface with the user                             9

      2.3    Software for calculation of flow and caloric power        10

      2.4    Case                                                     10

      2.5    Connection clips                                         11

3. Technical characteristics                                                12

      3.1    General technical characteristics                        12

      3.2    Inputs/outputs                                                 15




                                                                             2
                                                                 Chapter 1
                                                                       ==oOo==

1. Applications
       The flow calculator with own multiple transducer ( p , Δp ) FARSYS 01 is an
electronic device for measuring-metering the natural gas quantities and their caloric
power. The flow calculator can manage one or two measuring systems. When
configured for two measuring systems it records the flowing of fluid from one direction
in system number one, and in system number two when the flow returns. Measuring
the differential pressure and the absolute pressure is done with the EJX 110A
transducer, support on which the flow calculator is made. The equipment meets the
regulations in force both Romanian and European: ISO 5167-1:2003 , ISO 12213-2,
ISO 12213-3 , SR ISO 6976-98. The equipment is fully configurable and provides
easy operation.
       The application to be presented below offers a full image of the capabilities
provided by the FARSYS 01 type calculator.

                                                                                          Panou solar
                                                                                  Solar panel and
                                                                                               si
                                                                                  12V/24Aaccumulator
                                                                                      acumulator 12V/24A
      Odorization
            Instalatie
      equipment
            odorizare


                                                        Multivariable EJX 110A transducer and
                                                                  Traductor multivariabila EJX 110A
                                                                     flow calculator
SCADA computer system                                                           si calculator de debit
- mobile phone support SCADA
     Sistem informational de tip
                                                        ModBus
        -
networkretea suport telefonie mobila                                                                      Auxiliary transducer
                                                                                                         Traductor auxiliar de for
       - retea suport radio
- radio support network                                 RS-485                                            differential pressure
                                                                                                         presiune diferentiala

                                                                                   FARSYS01




     Instalalatie CROMATOGRAF
   Chromatograph
   installation
                                            ss
                                        le
                                       e
                                       ir
                                   w
                                t ie




                                                      Hart
                                                    I n t e rf a t a   H a rt
                             a
                           ic
                         n




                                                 Traductor PT 100
                       u




                                                   PT100 transducer
                    om




                                                       adaptor
                                                    cuwith adaptor
                  C




      LapTop




                                                                  D i a fr a
                                                                Measuring g m ă d e m ă s u r ă
                                                                             diaphragm

                                                                           Fig. 1
1.1   General description
1.1.1 The FARSYS 01 flow calculator

            The electronic flow calculator with own multiple transducer ( p , Δp ) FARSYS


                                                                                                                                     3
01 type measures the parameters in the measuring line, calculates the flow and the
caloric power according to the norms in force and stores the historical data, thus
meeting the transaction requirements as well as the consumption registration tax
requirements or the natural gas production.
       The FARSYS 01 type calculator is set inside the YOKOGAWA EJX 110A type
multiple transducer (pressure, differential pressure) and can manage one or two
measuring systems. When configured to manage two measuring systems (one for
the direct direction of flow and the other for the opposite direction), the capability of
the YOKOGAWA EJX 110A transducer to measure the static pressure and the
differential pressure in both directions is used; for the reverse direction the static
pressure measured differs from the one in the pipe with a size equal to the differential
pressure. In the calculations for system number two this fact is taken into
consideration, as well as the installing position of the temperature transducer
(downstream or upstream) and it is configured to achieve the temperature correction.
       The two systems use the same components for measurement (figure 1):
       - a measuring diaphragm with two straight edges according to ISO 5167-
           1/2003
       - a EJX 110A type multiple transducer (p , Δp), in which the FARSYS 01
           calculator is also built in
       - a RODAX type Pt 100 temperature transducer and YTA 70 adaptor
       - an EJX 110A differential pressure auxiliary transducer for
           maximum/minimum flows reports higher than 5
       The calculator is equipped with an RS 485 interface, through which its
configuration and the communication with external devices can be made
(chromatograph, SCADA systems, etc); also, a relay type outlet is installed, for the
control of odorization systems.
       The calculator is supplied from a 12 Vcc power source (solar panel and
12V/24A battery, or 220Vca/12Vcc power supply).

       The FARSYS 01 type calculator is fully configurable by the user, who can
define:
       - number of lines;
       - the function carried out by each line and the corresponding parameters;
       - the physical parameters and the calculation parameters valid for all lines (see
the system configuration);
       - the composition of gas and its physical parameters.

       The calculator can be electrically separated from the transducers, so that the
metrological checking is done separately (like in ROFAR 03), by simulating on the
HART interface the pressure, the differential pressure and temperature values. Also,
the transducers are separately checked, being disconnected from the calculator’s
inlet.
       The composition of gas can also be configured “on-line”, by connecting the
calculator to a process chromatograph, on a RS 485 serial connection.

1.1.2 EJX 110A multiple transducer for differential and absolute pressure

        The EJX 110A intelligent multiple transducer is used for measuring the
differential and absolute pressure. These transducers are used in gas, steam and
fluids applications.


                                                                                       4
       The transducers are regarded as intelligent because they are equipped with a
microprocessor which controls the entire activity of the transducer, performing
functions specific to this measuring device category:

-      data acquisition from the process;
-      conversion in number format of the voltage-frequency, frequency-number
value type data;
-      conversion for standard outlet signal 4….20 mA;
-      self-diagnosing;
-      permanent memory;
-      HART type communication.

       The measuring elements of transducers are silicon resonant crystal type, an
own patent of the Yokogava company. On the measuring membranes the vibrating
blades of silicon are deposited, whose resonance frequency depend on the pressure
put on the measuring surface.

       The transducer is made up of a higher cover which hosts an electronic module
and a lower measuring capsule.

       The lower capsule is made up of two isolation and contact diaphragms with
the fluid in the process, two hydraulic chambers for transmitting the measured
pressures in the process towards two measuring membranes. One of the membranes
is used for measuring the differential pressure and the second one for measuring the
absolute pressure. The advantage of utilizing the resonant silicon crystals as
pressure transducers resides in the accurate and direct pressure-frequency
conversion, which allows for a higher degree of stability of the EJX100A multiple
transducers.

       The pressure sensors are mechanically isolated through mechanic flanges
from the connection to the process. This is done by positioning the transducer
sensors as remote as possible from the process connecting plugs and as close as
possible to the electronic equipment that is located in the superior chamber of the
transducer.
       After obtaining the value of the electric size, the required linearization
functions are performed and filtration and integration corrections are applied,
according to the configuration parameters.
       The electronic module is located in the higher case of the transducer and has
the role to take the signal from the pressure sensors, to process the signal and to
transmit the measuring information. The electronic module converts the signal
coming from the pressure detecting block in unified outlet signal, on which the
measuring information in numeric form is overlapped (values in the flying comma
format of the differential pressure and absolute pressure can be obtained, measured
by the EJX110A type multiple intelligent transducer). This is equipped with a
microprocessor that ensures the numerical processing of data and has as main
functions the processing of signal, compensation of characteristic with the
temperature and communication with the purpose of configuration with Hart protocol.
Establishing the zero point and the domain are done by orders given through a
device communicating with the Bell 202 modem interface, Hart protocol.


                                                                                  5
       The transducer is built in three constructive variants ( ‘ L’ = -10 … +10 kPa ;
‘M’ = -100 … + 100 kPa ; ‘ H ‘ = -500 … + 500 kPa ).

2. Presentation of equipment

2.1   Front panel
2.1.1 Components of the front panel

        The front cover of the FARSYS 01 calculator is built by YOKOGAWA
Company and is equipped with a transparent window, which allows for the
identification and visualization of the elements specific to flow calculator display.




                                                      Optic interface
                                                     Interfata
                                                      optica




                             10.00000 bar   1
                             10.00000 kPa


                            FARSYS 01

                                                          Afisaj LCD
                                                       LCD display
                                                       2 x 16 caractere
                                                       2 x 16 characters

         Switch Switch
         Configuration
              configurare




.

                                      Fig. 2
2.1.2 Characteristics of the front panel components



                                                                                    6
(1)    LCD display
An LCD display on two lines of 16 symbols each enables the operator to visualize
data of the various functional menus.
The display can be equipped with own lighting.

(2)  Optic interface
The calculator’s front panel has an optic interface for the reading of data in its
memory.

(3)    Switch configuration
The switch located on the front panel of the device fulfills the protection of the
information stored in the calculator’s memory against the intervention of non-
authorised people; switching from OFF to ON allows the calculator to enter the
configuration regime.


2.1.3. Metrologic stamp


                              CALCULATOR DE DEBIT RO
                                   tip FARSYS 01 ______
                              Fluid de lucru : gaz natural Temp.Ambianta: -20 ... +50
                                                ±
                              Eroarea tolerata : 0,01 %
                              Serie :................................ An :.................




                                                               Fig. 3.

2.1.4. Functioning of the information protection elements.

      Since the FARSYS 01 calculator is built within the EJX 110A type multiple
transducer, sealing the calculator implies the sealing of the transducer, too.
      The information protection elements are accessible only by breaking the
metrological seal and by dismounting the calculator’s front cover.

       The switch control of the calculator from the CALCULATION regime to the
CONFIGURATION regime is located on the front cover of the calculator and
functions in such a way that if it is moved into the ON position, the calculator allows
for the modification of any configuration parameter. The configuration of the FARSYS
01 calculator is done on the RS 485 interface with the help of the laptop computer.
The second element of protecting the configuration information and the history is a
soft password composed of 6 figures. In the configuration regime the memory
erasure option is also possible, action which will lead to the deletion of all records. To
erase the memory, the operator is asked for another 6 figure password.



2.2    Electronic modules
       From the point of view of the construction, the FARSYS 01 type calculator
resembles a ROFAR 03 calculator, manufactured also by FARMING Company, hard
modified so that it can be mounted inside the multivariable transducer, and with a


                                                                                              7
software version which allows for the measurement of the flow, in both flow
directions. It is made up of two electronic modules (the basic module and the user
interface module), a supply module and connections which are mounted in the upper
case of the transducer. The communication between the transducers and the
FARSYS 01 calculator is exclusively performed in a digital manner on the 202 Bell
modem interface, Hart protocol. The calculator can be separated from an electric
point of view from the transducers, so that the metrological checking is done
separately (like in ROFAR 03), by simulating on the HART interface the pressure, the
differential pressure and the temperature values. The transducers are also separately
checked, being disconnected from the inlet of the calculator.
        The FARSYS 01 calculator is made up of the following electronic modules:
        - module for measurement of differential pressure – absolute pressure and
HART communication (module made by the company manufacturing the EJX 110A
transducer); there are no hardware and software modifications on this module;
        - the basic module (acquisition-calculation-metering);
       - the interface mode with the user;
       - power and connections mode;
        The electronic modules are manufactured in SMD technology. The electronic
components used have a low energy consumption, which leads to stable operating
regimes in relation to the temperature of the ambient environment or in relation to the
level of external task load (see RS 485 serial port).

2.2.1       The Yokogawa module for measuring the differential-absolute
pressure.
The module is specific to the EJX 110 A multiple transducer.




2.2.2 Basic module (acquisition-calculation-metering)




                                                                                     8
                                          Fig 4.
The basic module is made up of:
       - a MSP430F149 microprocessor, 7,3732 MHz, 60 Mo FLASH, 2ko RAM;
       - 8 ko RAM memory with protected battery clock;
       - an EEPROM memory serial` type EE24C1024;
        - an entry for Bell 202 type modem, Hart protocol – for the communication
with the transducers and checking of calculator;
       - an serial` RS 485 interface, ModBus protocol – for the communication with
the exterior;
       - a digital outlet (relay contact);
       - a 12V/5V power supply source in commutation;
The architecture of the basic module este presented in the figure below:

        CEAS DE                                                         HART
       TIMP REAL                                          INTERFATA                     TRADUCTOR
                                                            HART                     MULTIPLU EJX 110A
                                                                      1200 biti/s

                                                                                        TRADUCTOR
        MEMORIE
                                                                                    TEMPERATURA Pt100
          RAM
       CU BATERIE           MICROPROCESOR
                                16 biti                                 M-BUS
                                                          INTERFATA                   CROMATOGRAF
                                                            RS 485                    SISTEME SCADA
                                                                      9600 biti/s
        MEMORIE
        EEPROM
                                                            IESIRE                       LAP-TOP
                                                           DIGITALA                    (configurare)




                                                   5V
                    12Vcc
                               SURSA               3.3V
                              COMUTATIE
                                                   GND


                                          Fig 5.
2.2.2 Interface module with the user




                                                                                                         9
                                          Fig 6

This is made up of:

      - a MSP430F122 microprocessor, at 7,3732 MHz;
       - an LCD display of 2 x16 characters – for the sequential display of the
minimal data;
       - an optic interface – for reading the data without electric contact (with a
portable computer and an optic reader).

The architecture of the module is presented in the figure below:


            AFISAJ CRISTALE
                 LICHIDE            MICROPROCESOR            INTERFATA
         2 randuri x 16 caractere                              OPTICA
                                         16 biti




                                          Fig 5.



2.2.3 Supply and connections module

The module is made up of:

       - 24 Vcc power source for supplying the transducers;
       - the connection clips.




                                                                                      10
2.3. Software for calculation of the flow and caloric power




The software implemented in the FARSYS 01 flow calculator resembles the one in
the ROFAR 03 calculator, with the remark that this allows for measurement of flow in
both directions. It is made in accordance to the following normatibe documents:
        SR EN ISO 5167–1/2003 - Measurement of fluid flows through the method of
local reduction of the flowing section. Part 1: Diaphragms, nozzles and Venturi tubes
introduced in the pressurized round section pipes.
      ISO 12213 / 2 / 3 - Calculation of the compressibility factor.
      SR ISO 6976 - 98 - Calculation of the caloric power
       NML 018-07 - Continuous and dynamic measuring systems of the fluid
quantities (volume and mass).
       NML 001-05 - Metrologic and technical requirements common to the
measuring means subject to legal metrological checking.

2.4. Case




                                                                                  11
                                 Fig 8.
2.5 Connection clips
    The meaning of the connection clips is the following:

       1.     +12V        Connecting clip +
       2.     - 12V       Connecting clip –
       3.     +H          Transducer Hart connection, signal plus
       4.     -H          Transducer Hart connection, signal minus
       5.     IN          Calculator entry of the transducer signal
       6.     BUS+               Positive signal communication RS485
       7.     BUS-        Negative signal communication RS 485
       8.     OUT         Output relay contact odorisation control
    The signal connection between the FARSYS 01 calculator and the transducers is
done through the common setting of the signals –H (from the transducers) and IN
(from the calculator).



3. Technical characteristics



                                                                              12
3.1 FARSYS calculator technical characteristics
     - Maximum error on flow measuring     :               ± 0,01 %
     - Maximum error on measuring the caloric power:      ± 0,01 %
     - Pressure plugs                   :   - at the Flange
                                            - angled
                                            - at D and D/2

     - Compressibility factor           :   AGA8-92DC (ISO 12213-2)
                                            SGERG-88 (A,C) (ISO 12213-3)

     - Application field according to   :
     ISO 12213-2, (AGA 8-92DC)
     - temperature:                                (-48...+77) oC;
     - pressure:                            (0...650) bar;
     - differential pressure:               (0...100) kPa;
     - relative density:                    (0.55...0.90);
     - methane molar fraction:              (0.5...1);
     - ethane molar fraction:               (0...0.2);
     - propane molar fraction:              (0...0.05);
      - i-butane molar fraction:                    (0...0.015)
     - n-butane molar fraction:                  (0...0.015)
     - i-pentane molar fraction:                    (0...0.005)
     - n-pentane molar fraction:                    (0...0.005)
     - n-hexane molar fraction:                     (0...0.005)
     - n-heptane molar fraction:                   (0...0.0005)
     - n-octane molar fraction:                     (0...0.0005)
     - n-nonane molar fraction:             (0...0.0005)
     - n-decane molar fraction:             (0...0.0005)
     - CO2 molar fraction:                          (0...0.3);
     - N2 molar fraction:                   (0...0.5);
      - CO molar fraction:                                  (0...0.03)
      - H2 molar fraction:                          (0...0.1)
     - H2 S molar fraction:                         (0...0.15)
     - H2O molar fraction:                                   (0...0.00015);
     - O2 molar fraction:                           (0...0.002);
     - Helium molar fraction:                       (0...0.0005);
     - Argon molar fraction:                        (0...0.0005);


     IS0 12213-3/A and ISO12213-3/C (SGERG88)
     - temperature:                                   (-10...+65) oC;
     - pressure:                             (0...120) bar;
                           Extended interval    (0 ... 300) bar;
     - differential pressure:                (0...100) kPa;
     - relative density:                      (0.55...0.80);
     - Hs (25 oC /0 oC)                      (20…48) MJ/m3


                                                                              13
        - N2 molar fraction:                                (0...0.2);
        - CO2 molar fraction:                                       (0...0.2);
        - CO molar fraction:                                (0...0.03);
              - H2 molar fraction:                                          (0...0.1)
        - ambient temperature                 :       -20 ... +50 °C
        - ambient pressure           :        80 ... 106 kPa
        - relative humidity          :        max 80%
        - working environment        :        places with explosion hazard
        - environment class          :        Class C
        - protection class of device     :    IP 65

        - protection of information in the case of breakdown of supply voltage: 10
years

        - supply voltages            :        12 Vcc ( 10,8 Vcc … 13,8 Vcc )

        - Consumption                :        max.1,1 W

        - Weight (FARSYS calculator +
                    EJX 110A transducer               :     3,2 kg

3.2 Technical characteristics of EJX 110A multiple transducer
Note: The following notations will be used in the following:

        LIDM         :        Low limit of the measuring field;
        LSDM         :        Upper limit of the measuring field;
        IMM          :        Minimum measuring interval;
        IMC          :        Calibrated measuring interval;
        RC           :        Calibration report;
-       measuring fields:

                            LIDM                  LSDM                       IMC
Type of sizes        PD                        PD                       PD              Pabs
                    Pabs                     Pabs                      kPa              bar
                     kPa           bar         kPa     bar
        L            -10            0          10      160       0,1 … ± 10         0,5 … 16
        M           -100            0         100      250       0,5 … ± 100        0,5 … 25
        H           -500            0         500      250       2,5 … ± 500        0,5 … 25


-       the measuring error of the differential pressure:

    Type of size                IMC                           Measuring error
                              ( kPa )                 ( % of the measuring interval)
            L                    ≥2                               ± 0,04


                                                                                               14
                                <2                  ± ( 0,025 + 0,003 x LSDM / IMC )
          M                     ≥ 10                              ± 0,04
                                < 10               ± ( 0,005 + 0,0035 x LSDM / IMC )
          M                     ≥ 70                              ± 0,04
                                < 70               ± ( 0,005 + 0,0049 x LSDM / IMC )

-      the measuring error of the absolute pressure:

    Type of size                 IMC                         Measuring error
                               ( bar )               ( % of the measuring interval)
      L,M,H                     ≥ 10                               ± 0,1
                                < 10                       ± ( 0,1 x 10 / IMC )

Remarks: the error includes the linearity, hysteresis and repeatability.

-      effect of the temperature of the ambient environment:
       - for the differential pressure:

         Type of size                              Effect of temperature / 28 ºC
              L                            ± ( 0,08 % from IMC + 0,065 % from LSDM )
             M                             ± ( 0,04 % from IMC + 0,009 % from LSDM )
             M                            ± ( 0,04 % from IMC + 0,0125 % from LSDM )

       - for the absolute pressure:

         Type of size                              Effect of temperature / 28 ºC
           L,M,H                           ± ( 0,15 % from IMC + 0,05 % from LSDM )

-      effect of the static pressure on the differential pressure:
    Type of size                           Effect of static pressure
                             On the zero                                on IMC
         L             ± ( 0,05 % from LSDM )/69 bar          ± ( 0,075 % din IMC )/69
                       bar
         M             ± ( 0,02 % from LSDM )/69 bar          ± ( 0,075 % din IMC )/69
                       bar
         M             ± ( 0,028 % from LSDM )/69 bar         ± ( 0,075 % din IMC )/69
                       bar


-      effect of overpressure:
              - differential pressure:        ± 0, 03% din IMC pentru 690 bar ;

-      stability:
               - differential pressure:       ± 0, 1% din LSDM per 10 ani;

-      influence of the supply voltage:       ± 0, 005% per Volt (pt. 21.6 Vcc ... 32 Vcc);

-      effect of vibrations:                  ± 0,1 % din LSDM ;

-      effect of the assembly position:       max 0,4 kPa per 90° , adjustable from


                                                                                          15
                                        the zero adjustment;
-     temperature of the process fluid: -40 ... + 120 °C;

-     humidity:                         0 ... 100 % relative humidity;

-     protection level:                 EExD, IP67;

-     supply voltage      :                    17 ... 30 Vcc;

-     temperature of ambient environment: -40 ... + 85 °C;
                                     -30 ... + 80 °C cu LCD;

-     EMC effect:                       according to CE N200, EN 61326;



3.2 Signal inputs/outputs
      a) Bell 202 type modem, Hart protocol

        The FARSYS 01 calculator is equipped with a modem digital input Bell 202
type, Hart protocol, for communicating with the EJX 110A type multiple transducer
(pressure, differential pressure), the temperature and the differential pressure
auxiliary transducer. The same input is used when checking the calculator by
connecting it to a transducer simulator with Hart protocol. Disconnecting the
calculator from his own EJX 110A type transducer allows for its checking,
independently from the flow calculator.
      b) digital output (relay contact)
       The calculator is equipped with a digital output to be able to send impulses
proportional to a preconfigured quantity of the recorded natural gas volume. This
output is a relay contact type and can be used to control an odorisation installation.
       c) RS 485 serial interface
       The FARSYS 01 type calculator is equipped with a RS 485 type serial
interface, ModBus – RTU protocol, with programmable communication speed
(9600/19200 bauds), configurable parity (even, odd, with no parity). This has the
following utilizations:
       - for the configuration of the calculator with a mobile computer;
       - for on-line communication with a chromatograph-gas;
       - for connecting to SCADA systems;

       The FARSYS 01 type calculator can be connected to a PC or mobile computer
that is using a dedicated Windows application. This application “Data reading
FARSYS 01” is a graphic interface that provides the possibility of visualizing the
measured, calculated data, the data history, alarms, etc.
       With another application “Configuration FARSYS 01” the calculator is
configured if the CONFIGURATION switch is in the ON position, therefore after the
metrological protection seal has been broken. The access to data and configuration
is done after the password is introduced.


                                                                                    16
The configuration is carried out as follows:

-      existing data is loaded into the calculator;
-      the configuration data is modified, as wished, in the “off-line” mode;
-      during the configuration, each parameter is tested for meeting the limits as
imposed by the regulations in force;
-      before the configuration data is sent to the calculator, a final checking of the
set values is done, and the new configuration data is being sent;
-      by turning the CONFIGURATION switch to the OFF position, the calculator
       goes into the calculation and metering regime.




                            Contents of chapter II
                                       ==oOo==



                                                                            Page



                                                                                    17
1. Installation                                      18

       1.1        Assembly                           18

       1.2        Electric connection                18

       1.3        Dismantling the calculator         19

2. Setting the FARSYS 01 calculator into function
20




                                        Chapter II
                                          ==oOo==
1. Installation

1.1 Assembly


                                                          18
      The FARSYS 01 calculator built inside the EJX 110A type transducer is
mounted in an isolated electric switch box, where, if necessary, the differential
pressure auxiliary transducer can also be fitted in. This can be installed by an
engineer or a technician who has the required speciality skills for mounting. The
operators are not allowed to carry out the assembly of these transducers, unless they
have the necessary skills to do so.




                                         Fig 9.




1.2. Electric connection
       Supplying the calculator and the connection with the other measuring system
components are done through a connection ledge protected form the back cover of
the EJX 110A transducer. The distribution and the meaning of each connecting clip
are presented in figure 10.
                                 The calculator –
                                   transducer
                                   connection


                                                                                  19
                                    Legatura
                                   calculator-
                                    traductor




                                         Fig 10.

             ± 12V                             Electric supply
             + H ,-H                    Transducer connection
             IN                         Hart signal input transducers
             BUS+, BUS-                 RS 485 serial communication
             OUT                        Relay contact outputs odorisation control
    The signal connection between the FARSYS 01 calculator and the transducers is
achieved by joining the –H (from the transducers) and IN (from the calculator)
signals.

1.3. Dismantling the calculator
How to dismantle the FARSYS 01 calculator:

-      dismount the back cover of the EJX 110A transducer, where the connection
board is located;
-      unplug the calculator (clips +12V and -12V);
-      dismount the windowed cover from the front of the transducer, where the two
electronic boards are located (the display and the main boards);
-      carefully dismount the fixing bolts of the display board;
-      extract the display board from the connection connector with the main board;
-      dismount the fixing bolts of the main board.




2. Setting the FARSYS 01 calculator into function
The operator can set the calculator into function in two ways:


                                                                                20
        If the CONFIGURATION switch is OFF, by plugging in the calculator, it will
start in the CALCULATION regime, and the display will show a text indicating the
calculator model and the current software version.

      In a few seconds, the display will show various screens with parameter values,
according to the existing configuration.
      The same effect is obtained if the CONFIGURATION switch is turned from the
ON position to the OFF one, the calculator going from the CONFIGURATION to the
CALCULATION regime.

        If the CONFIGURATION switch is ON, by plugging in the calculator, it will
directly go into the CONFIGURATION regime, the display showing the first screen of
the configuration menu.




                         Contents of chapter III
                                     ==oOo==


                                                                                 21
                                                                             Page

1. Dialogue with the operator                                                  22

      1.1    General                                                           22
             1.1.1 Screen 1“Fluid parameters”
22
             1.1.2 Screen 2“Fluid parameters”
22
             1.1.3 “Flow and quantity index” screen                            22
             1.1.4 “Caloric power and energy index” screen
22

2. Dialogue with a PC or mobile computer
23

      2.1    Visualisation of the meters, the events and the configuration     23

      2.1.1 Visualisation of meters                                            23

      2.1.2 Visualisation of events                                            24

      2.1.3 Visualisation of configuration                                     24

      2.2    Configuring the FARSYS 01 calculator                              27




                                                                                    22
                                    Chapter III
                                      ==oOo==
1. Dialogue with the operator
1.1 General
        The results of the measurement and the permanent meters are periodically
displayed as “operator screens”. Each operator screen is displayed for a couple of
seconds (the screens with the flows and indexes are displayed for a time longer than
those of the fluid parameters, to allow the operator to record them). All the sizes
measured and calculated are displayed in seven figures and flying comma. In upper
right corner of the screens the measuring line the information on the screen is
referring to is displayed. For each active measuring line, the following 4 operator
screens are displayed:
1.1.1 Screen 1 “ Fluid parameters“
        10.00000 Kg/mc          1
        10.00000 kPa A
1.1.2 Screen 2 “ Fluid parameters“
        10.00000 °C a           1
        10.00000 bar
       The two “Fluid parameters” screens display the following:
       - the gas density (Kg/mc) at the working pressure and temperature
       - differential pressure (kPa / mmH2O)
       - static pressure ( bar / barr )
       - temperature (°C )
       If the communication with the transducers is disrupted, all the parameters get
the zero value and the error message “E” is displayed. If the temperature, the static
pressure or the differential pressure are beyond the prescribed limits, they are
marked with “A” or “a”, as they exceeded the upper or the lower configured limit. If
the alarm limits are exceeded the gas quantity is metered in the total meter displayed
in the “Flow and quantity index” screen; when reading the data recorded in the
hourly, daily, monthly meters, the quantity recorded in alarm conditions can be
separated. When the algorithm limits are exceeded, the parameters are displayed,
the message “E” (error) comes up, the flow is displayed as zero and is not metered.
1.1.3 The “Flow and quantity index” screen
        123.4567 mc/h   1
        123456789.12 mc
On the first line the flow is displayed, and on the second line the total value of gas
metered.


1.1.4   The “Caloric power and energy index” screen
          1234.567 kW 1
        123456789.12 kWh
On the first name the flow of the caloric power is displayed, and on the second line


                                                                                   23
the total energy index. .




2. Dialogue with a PC or LAP TOP
2.1 Visualisation of meters, events and configuration
        To visualize the data measured, calculated, the data history and the events,
the FARSYS 01 calculator connects to a PC or laptop computer using the “Data
reading FARSYS 01” application. The “Data reading FARSYS 01” application
allows for the reading, storing and printing of meters (432 hourly meters, 66 daily
meters and 14 monthly meters), of the events occurred and the configuration. Also,
reports for the current and last months can be made, which can be printed via a
printer connected to the laptop.
        The communication between the laptop and the FARSYS 01 flow calculator is
done through the RS 485 serial interface; if upon assembly no connection wires were
fitted outside the calculator, reading the data on this interface implies breaking the
seal.
        Reading the data can be performed even with an optic reader coupled to the
optic interface located on the front panel of the calculator (in this case, breaking the
seal of the calculator is no longer required).
        If the FARSYS 01 calculator is connected to a dispatching system SCADA
type, by connecting it to a GSM-GPRS modem, all the data stored in the memory of
the calculator can be read with any application made in Windows.
        Starting the “FARSYS 01 Reading” application is made from the desktop of the
laptop.




                                                                                     24
2.1.1 Visualisation of meters
        Each of the 512 meters (hourly, daily, monthly) contains the following
information:
        - the metering time (minutes);
        - the total quantity of metered gas (mc) in the respective interval;
        - the total caloric energy metered (kWh);
        - the metering time in alarm conditions;
        - the quantity of gas metered in alarm conditions (mc);
        - the caloric energy metered in alarm conditions (kWh);
        - the average temperature value for the time interval the meter is referring to;
        - the average pressure value for the time interval the meter is referring to;
        - the maximum value of the differential pressure for the time interval the meter
is referring to.

2.1.2 Visualisation of events
       Each of the 448 events on each measuring line is accompanied with the date
and time they occurred. The events that may appear are the following:
       Name
       Description

      - Pok PDok Tok            No events
      - stop                    disrupting the power supply of the calculator
      - start                   restoring the power supply
      - Configuration           Configuration of calculator


                                                                                     25
      - Per PDer Ter                          Error in the communication with the
transducers
                             Algorithm error
      - P>, P<               Technological alarms of high/low pressure
      - T >,T<               Technological alarms of high/low temperatures
      - PD> , PD<            Technological alarms of high/low differential pressure
      - PD2ok                Selection of differential pressure auxiliary transducer
      - PD2er                Error of differential pressure auxiliary transducer


2.1.3 Visualisation of configuration
       The configuration of the FARSYS 01 calculator can be visualized if the
configuration switch is in the OFF position. The following can be visualized:
      - Configuration of the measuring line
      MEDIAS 1                                - Line identifier

      Configured on                  - Date of configuration/activation
       10 NOV 07 9:30
      SQUARE                         - Type of transducer
       TRANSDUCER
      Plugs                          - Type of pressure plugs
       Angled
       At the flange
       at D&D/2

      1000.000      mm               - diameter of pipe
      12.50000      E-6/°C           - pipe dilatation coefficient
      500.0000      mm               - disk diameter
      16.00000      E-6/°C           - disk dilatation coefficient

      THRESHOLD FLOW                 - the threshold flow
       1000 Smc/h

      THRESHOLD ALGORITHM            - algorithm used
       Classic

      TRANSDUCER DP aux              - switching the differential pressure auxiliary
transducer
       10.00000 kPa

      FLOW OUTPUT                    - digital output constant
       1000 Smc/imp

      LOWER LIMITS                   - Limits;


                                                                                  26
 0.0000 grC
 0.000000 bar
 0.000000 kPa

UPPER LIMITS
 50.0000 grC
 20.00000 bar
 100.0000 kPa
- System configuration

MEDIAS                     - System identifier
Configured on              - date of configuration/activation
10 NOV 07 9:30
ACTIVE LINES               - Number of lines: 1 or 2
 2.000000
BALANCE TIME         - Balance time: 0…23
 7.000000
Pressure display: bar/barr        - measuring units
Differential pressure display: kPa/mmH2O

MBUS ADDRESS               - SCADA Address
 1.000000

9600/19200                 - RS485 communication speed

AMMENDMENT 1/98            - Flow calculation according to ISO 5167
 Present
 Not configured

REFERENCE CONDITIONS - reference pressure and temperature for the
 1.013250 bar          calculation of flow calculation of flow
 15.0 gr C
 25.0 gr C           - reference temperature for caloric power

DYNAMIC VISCOSITY          - Gas parameters
 10.8500 E-6Pas

ISENTROPIC COEFFICIENT
 1.31000

COMPRESSIBILITY            - Norm used
 AGA 8-92DC

                                                                      27
        SGERG-88A
        SGERG-88C

      CHROMATOGRAPH                      - Input of gas composition
       Present
       Not configured

      - Gas configuration

        if the compressibility is calculated with AGA8-92DC (ISO 12213-2), the gas
configuration consists in its composition (21 components, molar fractions). For the
other two possibilities (SGERG 88 A and C ), according to ISO 12213-3, it consists in
the following:

      TORCESTI                           - Gas identifier
      Configured on                      - Date of configuration/activation
      10 NOV 07 9:30
      RELATIVE DENSITY                   - Physical properties of gas
      0.55 ... 0.90                        at 0°C and 1.01325 bar)
      CALORIC POWER
      34.00 MJ/mc                        - at 25°C
      0.000000 % H2                      - Gas composition
      0.010000 % CO2
      0.100000 % N2
      0.000000 % CO




2.2 Configuring the FARSYS 01 calculator
       Configuring the FARSYS 01 calculator is done only when the
CONFIGURATION switch is in the ON position, therefore after the metrologic
protection seal is broken and the front cover of the calculator is dismounted. The
access to the configuration data is done after the password is introduced. This is
done with the “Configuration of FARSYS 01” application.
       The communication between the laptop and the FARSYS 01 flow calculator is
achieved through the same RS 485 serial interface (the communication speed is
9600, with no parity).
       Starting the “Configuration of FARSYS 01” application is done from the
desktop of the laptop.
       When started, the application has a certain configuration for the FARSYS 01
calculator implemented. If the configuration is to be modified, the reading of the
existing configuration is done by accessing the command “Read” (during which time
the entire existing configuration will be read), the data are modified off-line and then,
by accessing the command “Write” it is written again in the calculator.
       If the case, the application checks the data introduced and sends error


                                                                                      28
messages.
       Using the configuration Memory, Date and Time is subject to a special
password setting, this leading to the erasure of memory, respectively to the
modification of calculator’s date and time. This has to be done carefully because it
results in the erasure of all records existing in the FARSYS 01 calculator. To erase
the memory, the program asks for another password and this can only be done from
the configuration program.




                         Contents of chapter IV
                                     ==oOo==



                                                                        Page

1. Operation and dialogue with a supervising calculator
29

      1.1    Operating regimes of the FARSYS 01 calculator                 29
             1.1.1 Calculation regime                                      29


                                                                                 29
              1.1.2 Configuration regime
30

2. Measuring units                                                 30

3. Symbols                                                         31

4. Managing the differential pressure transducers
31

5. Calculation of flow                                             32

6. Calculation of caloric power                                    33

7. Indexes, current and historic meters                            33

       7.1 Indexes                                                 33

       7.2 Current meters                                          33

       7.3 History                                                 34

8. Events                                                          34

9. Dialogue with a supervising calculator
35

       9.1 Communication protocol
35

       9.2 Communication functions with a supervising calculator   35
             9.2.1 Data reading                                    35




                                   Chapter IV
                                      ==oOo==

1. Operation and dialogue with a supervising calculator
1.1 Operating regimes of the FARSYS 01 calculator
The FARSYS 01 calculator can function in two distinct regimes:
     - CALCULATION regime;

                                                                        30
      - CONFIGURATION regime;
Switching from the CALCULATION to the CONFIGURATION regime is done by
turning the CONFIGURATION switch into the ON position, located on the main
board. This switch is protected against unauthorized use, through sealing of the
calculator.
1.1.1 The calculation regime
The FARSYS 01 calculator enters the CALCULATION regime in the following
circumstances:
       - if the CONFIGURATION switch is in the OFF position and the calculator is
plugged in;
       - if the CONFIGURATION switch is turned from the ON position to the OFF
position.
When starting to function in the calculation regime, the screen will display the
operator windows in automated marching-past regime.
The CALCULATION regime allows for:
      - acquisition of measuring parameters from the field transducers;
      - managing the acquired data in accordance to technological criteria and
according to the normatives;
      - performing the required mathematic calculations;
      - managing the output signals according to the existing configuration ;
      - managing the events;
      - displaying the acquired and calculated values with continuous updating;
      - displaying the indexes and the consumption history.

The flow (mc/h) and the caloric power (kW) are metered in two types of meters:
      - permanent meters;
      - temporary meters.

        The permanent meters have the 12 figure capacity and are erased only when
all the digits with the number “9” are filled (a minimum time is ensured between the
erasures of at least 3000 hours). The permanent meters contain the information on
the total gas quantity or the metered energy (including in alarm conditions). When the
algorithm limits are exceeded the flow is displayed as zero and is not metered.
       The temporary meters are: “current time” and “current month”. At the end of the
respective interval, they are recorded in the metering history (on hours, days,
months), then they are erased. The records also contain metering time, alarm
metering time, the metered quantities in alarm conditions, the average temperature,
the average pressure, and if the case, the maximum differential pressure during the
time interval.

       The events that appear in the course of the measurement are stored in a list
with 448 inputs for each of the configured measuring lines. The occurrence of the
event is recorded, as well as the coming back to normal.

       The calculator signals and stores the following events which might occur
during operation:
       - power supplying the calculator;


                                                                                   31
       - alarms (upper, lower) signaled for pressure, temperature and differential
           pressure;
       - the absence of communication with the acquisition devices;
       - errors of the field transducers (p, t, DP);
       - selecting the differential pressure auxiliary transducer.

1.1.2 The configuration regime

       The FARSYS 01 calculator enters the CONFIGURATION regime if the
CONFIGURATION switch, located on the front panel is switched into the ON
position.

       For configuration a PC or a laptop are used; the configuration activity is carried
out as follows:
       - the existing configuration data is loaded;
       - the off-line configuration is performed; new data can be printed out.
       - the new configuration data is sent to the FARSYS 01 type calculator.

       The configuration is accepted by the FARSYS 01 type calculator only if the
password entered by the user is the one stored it its memory. The new configuration
becomes active at the exit of the CONFIGURATION mode. The FARSYS 01 type
calculator also accepts the on-line updating of the gas composition, using a serial
connection to a gas-chromatograph. The on-line composition is taken into
consideration only if the “CHROMATOGRAPH Present” was configured from the
system configuration screen. In principle, the on-line composition is supposed to
being taken “in real time” from a process chromatograph.

The CONFIGURATION regime allows for:
       - stopping the acquisition, the mathematic calculations and the communication
with a supervisor;
       - ensures the dialogue with the operator;
       - checks the observance of limits for the values introduced during
configuration;
       - stores the new configuration.

The CONFIGURATION regime is made up of:
     - configuration of the measuring line;
     - configuration of the measuring system;
     - gas configuration.

2. Measuring units
The measuring units used for various parameters are:
     Parameter                   Symbol                       Unit

      Pressure                    P                           bar, barr

      Temperature                 T                           °C

      Differential Pressure       Pd                          kPa, mmH2O


                                                                                      32
      Caloric power                        Pc                          kW

      Diameters                   Do, do                      mm

      Dilatation coefficient               lD, ld                      1/ °K

      Volume flow                 Qv                          mc/ h

      Volume meter                                                     mc

      Caloric power                        Pc                          kW

      Caloric energy meter                                             kWh

      Time                        tc, tf                      min

3. Symbols
       Symbol              Description

       P                   Pressure in measuring conditions
       T                   Temperature in measuring conditions
       Pd                  Differential pressure in measuring conditions
       Pb                  Local barometric pressure
       Do                  Interior diameter of pipe
       do                  Inner diameter of the diaphragm disk
       lD                  Dilatation coefficient
       ld                  Dilatation coefficient

       Pc                  Caloric power

       tc, tf              Metering time, operating time ( tf ≥ tc )

4. Managing the differential pressure transducers
 The FARSYS 01 type calculator can function on one measuring line, either with a
single multiple transducer which measures the pressure and the differential pressure,
or with two transducers, of which a multiple one and a second differential pressure
auxiliary one; the communication with both transducers is done digitally, by means of
Hart protocol.

In the case of using two differential pressure transducers for the same measuring
line, the calculator will take for the calculation of the flow that differential pressure
value that corresponds the algorithm of decelerating the valid value for a certain
flowing state of the fluid in the process.


                                                                                      33
Switching from one transducer to another is done automatically at a gross value of
90% from the scale head of the differential pressure transducer of small scale. At the
gross value a 5% hysteresis is taken into consideration.

If one of the transducers is out of order, the calculator automatically switches to the
valid transducer, recording the respective alarms.


5. Calculation of flow
The equations used for the calculation of the flow meet the ones imposed by ISO
5167-1:2003:

5.1. The mass flow:
                                       4
                          qm C     1       1       4 d2   2   P   1
where:

qm       :   instantaneous mass flow <kg/s>;
C        :   unload coefficient (determined through iterative calculations);
β        :   d/D ratio in flowing conditions
ε1       :   detent coefficient in flowing conditions, upstream
d        :   diameter of the orifice in flowing conditions <mm>;
∆P       :   differential pressure in flowing conditions <Pa>;
                                                        3
ρ1       :   fluid density in flowing conditions <kg/m >;

d, D diameters are compensated with the             temperature according to ISO 5167-
1:2003:

                                d d 20 1       d   t t ref
                                D D20 1        D    t t ref
where:

d        :   diameter of the orifice in flowing conditions <mm>;
D        :   diameter of the pipe in flowing conditions <mm>;
d20      :   diameter of the orifice at 200 C <mm>;
D20      :   diameter of the pipe at 200 C <mm>;
λd       :   volume dilatation coefficient of the disk <1/0K>;
λD       :   volume dilatation coefficient of the pipe <1/0K>;
t        :   temperature in measuring conditions <0C>;

5.2. Volume flow :

             Qv = qm / ρ1


5.3. Volume flow in basic conditions:


                                                                                    34
             Qvb = qm / ρb

For the calculation of the compressibility factor, the equations of the ISO 12213-2,3
norms are used.

6. Calculation of caloric power
The equations used to calculate the caloric power if the complete composition (norm
ISO 12213/2 – AGA 8 detail) is used as configuration size correspond to the
requirements of ISO 6976-1995; if the calculator is configured according to SGERG
88 norm, the caloric power is an input size (configured or taken on-line from a gas-
chromatograph).

7. Indexes, current and history meters

7.1 Indexes
The volume index is calculated as follows:


                    V = ∑ V’           cu:     V’ = Qv × t’
where:

V        :   volume index <mc>;
V’       :   volume <mc>;
Qv       :   volume flow <Smc/s>;
t’       :   time of a measure-calculus cycle <s>;



The energy index is calculated as follows:
                    E = ∑ E’           cu :   E’ = Pc × t’

where:

E        :   energy index <kWh>;
E’       :   energy <kWh>;
Pc       :   caloric power <kW>;
t’       :   time of a measure-calculus cycle <s>;

7.2 Current meters
The meters managed by the FARSYS 01 calculator are:
     - quantity meters;
     - caloric energy meters;

Of each category from above, according to time, the meters are:
      -hourly meters:


                                                                                  35
               - reset at every hour;
               - the old value is recorded in the previous hour and hourly history;
       - daily meters:
               - reset every day;
               - the old value is recorded in the previous day and daily history
       - monthly meters:
               - reset every month;
               - the old value is recorded in the previous month and the monthly
history.

7.3 History
History managed by the FARSYS 01 is:
       - hourly history;
               - for 432 hours (hourly meters for 18 days);
       - daily history;
               - for 66 days;
       - monthly history;
               - for 14 calendar months.


8. Events
The FARSYS 01 calculator manages events that occur during its operation.

  Name                   Description

Pok PDok Tok         No events

Stop                 The power supply of the calculator is cut off

Start                The calculator is plugged in

Configuration        Configuration of calculator

Per PDer Ter         Error in the communication with the transducers/algorithm error

P>, P<                                   Technological alarms for high/low pressure

T >,T<               Technological alarms for high/low temperature

PD> , PD<            Technological alarms for high/low differential pressure

PD2ok                                    Selection of the differential pressure auxiliary
transducer

PD2er                Error of the differential pressure auxiliary transducer




                                                                                      36
9. Dialogue with a supervising calculator

9.1 Communication protocol
The dialogue between the FARSYS 01 calculator and a supervising calculator is
based on tghe ModBus RTU module communication protocol.

The FARSYS 01 calculator has the role of SLAVE on the communication bus.

9.2 Communication functions with a supervising calculator
The FARSYS 01 calculator provides the following ModBus standard functions:

      - Function 3 :                  reading of 1...n parameters
      - Function 16 :                 writing of 1...n parameters

9.2.1 Reading of data
A supervising computer can read data in the ModBus list.




                                                                             37
                        Contents of chapter V
                                    ==oOo==



                                                             Page

1. Checking manner
37

      1.1   Transducer simulation equipment
37
       1.2   Checking the FARSYS 01 flow calculator
with the support of the QED 1200 multipurpose communicator
37

2. Sealing manner of the FARSYS 01 type calculator             39




                                                                    38
                                    Chapter V
                                       ==oOo==

1. Checking manner

1.1 Transducer simulation equipment
       The FARSYS 01 type calculator uses communication connections Bell 202
modem type for acquisition of data from the multiple transducer, temperature and the
differential pressure auxiliary one.
       The calculator is separated electrically from the transducers, so that its
metrological checking is done separately (like in ROFAR 03), by simulating the
pressure, the differential pressure and the temperature values, on the HART
interface. The transducers are also separately checked, being disconnected from the
calculator’s input.
       Separation of the FARSYS 01 calculator from the transducers is done by
cutting off the electrical connection between the –H (from the transducers) and IN
(from the calculator) signals.
       To check the FARSYS 01 type calculator, complex signal generators will be
used, individual or combined, for the simulation of the field transducers.


1.2. Checking The FARSYS 01 type calculator with the support of
the QED 1200 multipurpose communicator
       The „Hart 1” serial interface of the QED 1200 communicator is used;
       Allocation of the transducer addresses is done in accordance to the number of
measuring lines configured on the FARSYS 01 calculator (FARSYS 01 calculator
with two measuring lines).
       - address 1 is allocated for the simulation of the specific sizes of the EJX
110A transducer (differential pressure – kPa, absolute pressure – Mpa);
       - address 2 is used for the simulation of YTA70 transducer (temperatura –
Celsius degrees);
       - address 3 is allocated for the simulation of the differential pressure auxiliary
transducer (if there is one).




                                                                                      39
                                                   CC
                                               Sursa cc
                                               source 12
                                                12VV


                        Hart -



       QED 1200         Hart +




     Calculator Farsys 01
  Farsys 01 Calculator with
    cu 110A transducer
    EJXtraductor EJX 110A




1.2. Checking the EJX 110A type multiple transducer with the
support of the QED 1200 multipurpose communicator and the
pressure simulators




                                                               40
                                                               Sursa cc
                                                               CC source
                                                                 12 V
                                                                 12 V


                                Hart -



         QED 1200              Hart +




        Calculator Farsys 01
     Farsys 01 Calculator with
       cu 110A transducer
       EJXtraductor EJX 110A




                                                Simulator de
                                                   Pressure
                                                  Presiune
                                                   simulator




2. Sealing manner of the FARSYS 01 type calculator
      For the protection of the measuring device against unauthorised interventions,
the metrological seal is applied on a led pill located on the sealing wire, as in figure
11.




                                                                                     41
10.00000 bar 1
10.00000 kPa


FARSYS 01




  Fig. 11




                 42
                                     Annex 1
                                        ==oOo==


   1. ModBus List

         Are read with the function 3 records of 32 variables each (128 data octets),
from addresses multiple of 32. The events are bit mapped and b c d, but they are
read the same. Otherwise, they are variable floating points / 4 octets.
         Compozitia de la distanta se scrie cu functia 16. The distance composition is
written with the 16 function.

         Meters ( 2 for each record )

LINE 1             8000H-9FFFH
LINE 2             A000H-BFFFH

8000H +0           Current month (14 monthly meters)
                   Last month
              +32  The following two months
...........................
              +7*32 Current day       (66 daily meters)
                            Last day
............................
              +40*32 Current hour     (432 hourly meters)
                            Last hour
............................
8000H +255*32 The last two hours

For each meter :

        8000H The date of the first writing in the meter =
year*10000+month*100+day (0 if there is no data in the meter)
        8001H The hour of the first writing in the meter = hour*10000+min*100+sec
        8002H Metering time (min)
        8003H Metering time with alarms (min)
        8004H Tmed (grC)
        8005H Pmed (bar)
        8006H PDmax (kPa)
        8007H reserved ( 0 )
        8008H Flow meter (mc * 10E+6)
        8009H Flow meter (mc)
        800aH Flow meter in alarm (mc * 10E+6)
        800bH Flow meter in alarm (mc)
        800cH Electricity meter (kWh * 10E+6)
        800dH Electricity meter (kWh)
        800eH Electricity meter in alarm (kWh * 10E+6)


                                                                                   43
         800fH    Electricity meter in alarm (kWh)

         Events ( 16 for each record )

LINE 1            4b00H-4fffh
LINE 2            5b00h-5fffh

         Last event:

4b00h    bit mapped (255 if there are no other events) :
         error pd2        equ      0x02
         selection pd2    equ      0x04
         error p equ      0x08
         error t          equ      0x10
         error pd equ     0x20
         configuration    equ      0x40

4b01h               bit mapped
         power on           equ    1
         p < limita         equ    2
         p > limita         equ    4
         t < limita equ     8
         t > limita equ     16
         pd < limita        equ    32
         pd > limita        equ    64
         power off          equ    128

4b02h             Year ( aa code bcd )
4b03h             Month (0 if no other events)
4b04h             Day
4b05h             Hour
4b06h             Minute
4b07h             -

         Composition from a distance ( and 16 function)

4a80h+ 0         Password=570902
       1         Id=0
       2         Date=0
       3         Hour=0
       4         0
    Molar fractions AGA8 Detail :
       5         Methane
       6         Nitrogen
       7         CO2
       8         Ethane
       9         Propane
       10        Water


                                                           44
      11    H2S
      12    Hydrogen
      13    CO
      14    Oxigene
      15    i-Butane
      16    n-Butane
      17    i-Pentane
      18    n-Pentane
      19    n-Hexane
      20    n-Heptane
      21    n-Octane
      22    n-Nonane
      23    n-Decane
      24    Helium
      25    Argon
    SGERG composition
      26    0.1005
      27    0.016
      28    0.095
      29    0
      30    34.16
      31    0.6

         System configuration

4a40h+ 5      Reference pressure
       6      Reference temperature
       7      Viscosity
       8      Isentropic factor
       10        Balance hour
       16        Number of active channels
       18        Activation (=1) composition from a distanced

         Lines configuration

LINE 1           4a20h-4a3fh
LINE 2           5a20h-5a3fh

4a20h+ 5         Plugs : 0=angle,1=flange,2=D&D/2
       7         Diameter of pipe (mm)
       9         Diameter of diaphragm (mm)
       11      Head of scale transducer pd2 (kPa) ( 0 if no pd2)
       14      Lower alarm p (bar)
       15      Upper alarm p
       16      Lower alarm t (grC)
       17      Upper alarm t
       18      Lower alarm pd (kPa)
       19      Upper alarm pd


                                                                   45
         Current data

LINE 1           4a00h-4a1fh
LINE 2           5a00h-5a1fh

4a00h+ 0         Current date
       1         Current time
       2         t (grC)
       3         p (bar)
       4         pd (kPa)
       5         Density (kg/mc)
       6         Flow (mc/h)
       7         Power (kW)
       8         Flow index (mc * 10E+6)
       9         Flow index (mc)
       10        Flow index in alarm (mc * 10E+6)
       11        Flow index in alarm (mc)
       12        Electricity index (kWh * 10E+6)
       13        Electricity index (kWh)
       14        Electricity index in alarm (kWh * 10E+6)
       15        Electricity index in alarm (kWh)

         16-31 reserved

         122-123 octets = current state bit-mapped as in events

Line configuration

      257-288

      257            Date of configuration/activation
      258            Time of configuration/activation
      259-261        reserved ( ID line in ASCII format)
      262            Plugs : 0 = Angle , 1 = Flange , 2 = D&D/2
      263            Digital output (mc/impulse)
      264            Diameter of pipe (mm)
      265            Dilatation coefficient (1/K * 10E+6)
      266            Diameter of diaphragm (mm)
      267            Dilatation coefficient (1/K * 10E+6)
      268            Head of scale PDaux (kPa)
      269            Threshold flow (mc/h)
      270            Threshold algorithm : 0 = classic , 1 = SMART
      271            Lower p limit (bar)
      272            Upper p limit
      273            Lower t limit (grC)
      274            Upper t limit


                                                                     46
275       Lower pd limit (kPa)
276       Upper pd limit
277       Transducer : 0 = square , 1 = volume
278       Analogic output 1 : 0 = p , 1 = t , 3 = flow
279       Value at 4 mA (bar,grC,mc/h)
280       Value at 20 mA
281-283   Analogic output 2
284-288   reserved




                                                         47
                                      Annex 2
                                        ==oOo==

The block diagram of the electronic modules of the FARSYS 01 calculator.



                                                                            OPTIC
     AFISAJ CRISTALE
      LCD DISPLAY
          LICHIDE                                                        INTERFACE
                                                                       INTERFATA
                                 MICROPROCESOR
                                  Microprocessor
       2 rows x caractere
  2 randuri x 16 16                    16 biti
                                      16 bites
                                                                        OPTICA
      characters



                                      M-BUS


     Real time
      CEAS DE                                                HART         HART          EJX 110A Multiple
                                                          INTERFATA                       TRADUCTOR
       watch
     TIMP REAL                                             Interface                       transducer
                                                                                       MULTIPLU EJX 110A
                                                             HART
                                                                        1200 biti/s

      RAM
     MEMORIE                                                                           Pt100 Temperature
                                                                                          TRADUCTOR
   Memory with
       RAM                    Microprocessor                                          TEMPERATURA Pt100
                                                                                           transducer
    CU BATERIE
     battery                MICROPROCESOR
                                  16 bites
                                   16 biti
                                                            RS 485        M-BUS         CROMATOGRAF
                                                          INTERFATA
                                                           Interface                    SCADA Systems
                                                                                        SISTEME SCADA
                                                            RS 485
   EEPROM                                                               9600 biti/s     Chromatograph
     MEMORIE
   Memory
     EEPROM
                                                            IESIRE
                                                                                             Laptop
                                                                                           LAP-TOP
                                                             Digital
                                                           DIGITALA                      (configurare)
                                                                                         configuration
                                                            output


                                                   5V
                 12Vcc
                               SURSA
                              SWITCHING            3.3V
                               SOURCE
                              COMUTATIE
                                                   GND




                                                                                                            48

				
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