E L B S - 10 LINE BREAK DETECTION SYSTEM INSTRUCTION HANDBOOK

Transcription

1 E L B S 10 LINE BREAK DETECTION SYSTEM INSTRUCTION HANDBOOK MDE135E2 REVISION LIST 2 18/05/2002 Fixed operating mode M.B. A.A. 1 18/07/2000 Update function of CN51 external power supply ( pag.12 ) 0 18/01/2000 Issue document M.B. A.A. Rev. Date Description Prepared Approved BIFFI ITALIA s.r.l. DIREZIONE, UFFICIO COMMERCIALE,,STABILIMENTO HEADQUARTER, SALES DEPARTMENT, FACTORY Fiorenzuola d'arda (Piacenza) Italy Tel. (0523) Telex Bifior.I Telecopier (0523) M.B. A.A i

2 CONTENTS 1. FORWARD WORKING PRINCIPLE TABLE OF OPERATING MODES GENERAL CHARACTERISTICS VALVE CONTROL ON PRESSURE DROP RATE VALVE CONTROL ON HIGH OR LOW PRESSURE VALVE CONTROL FOR SIMULATION TEST VALVE CONTROL DELAY LINE PRESSURE DATA ACQUISITION SOLENOID VALVE CONTROL OUTPUT POWER SUPPLY PACK LOCAL OPERATOR INTERFACE LOCAL COMMUNICATION PORT OUTPUT RELAYS PRESSURE TRANSDUCER EXAMPLE OF PRESSURE DROP RATE CONTROL ELBS10 ELECTRONIC CARDS DIPSWITCHES AND JUMPERS SETTING : TECHNICAL CHARACTERISTICS OF ELBS ELECTRICAL CONNECTIONS OF ELBS VIEW OF EEXD LINE BREAK CABINET MENU OF THE LOCAL OPERATOR INTERFACE OF ELBS PARAMETERS AND SETPOINTS LIST ALARMS AND WARNINGS LIST PARAMETERS LIST OF THE TEST FUNCTION INSTRUCTIONS FOR USING THE LOCAL OPERATOR INTERFACE LIBVIEW.EXE PROGRAM TO INSTALL THE LIBVIEW.EXE PROGRAM ON THE PC TO CONFIGURE THE ELBS10 LINE BREAK DETECTION MODULE TO SAVE ALL THE EVENTS DATA OF THE ELBS10 MODULE TO VISUALISE THE ELBS10 STATUS MAIN COMPONENTS OF EEXD LINE BREAK CABINET TYPICAL ELECTRICAL DIAGRAM TYPICAL OPERATING DIAGRAM START UP INSTRUCTIONS TO RESTORE THE VALVE CONTROL FUNCTION BATTERY MAINTENANCE ii

3 1. FORWARD The Line Break Detection System type ELBS10 is an electronic equipment, developed by Biffi, for monitoring the pipeline integrity. The ELBS10 continuously monitors the pressure in the line and in case of failure, it sends a command to the actuator so as to stroke the line valve to the fail safe position. The electrical power necessary for working, is supplied by a 7.2V lithium battery pack that allows the ELBS10 to work for at least one year. The ELBS10 is provided with a powerful local operator interface, made of one 2 lines / 16 characters LCD display and 3 pushbuttons, that allows to enter the configuration data and to visualise the values of variables or the status of the device. Moreover an RS232 serial communication port is provided for connection to a PC or LAP TOP, to carry out parameter configuration, or variables visualisation or to download the recorded event data for further analysis of pipeline behaviour. LCD display of local operator interface Example of cabinet equipped with ELBS 10 Pushbuttons of local operator interface, ' ', 'ENTER' pushbutton,' ', 'DEC' pushbutton,' ', 'INC' pushbutton The ELBS 10 was especially engineered for ON FIELD service, it means capability of working in the severest ambient conditions, as wide operating temperature range, vibrations, explosive atmosphere, etc. Particular care was taken to increase the level of immunity against the radio frequency disturbs

4 2. WORKING PRINCIPLE The ELBS10 samples cyclically the line pressure value, measured by the pressure transducer (PT) and memorises the sampled values in a temporary rolling memory, type FIFO (First in, First out). The rolling FIFO memory allows to store 256 samples and the sampling rate is programmable from 1 to 10 s. The pressure magnitude and pressure drop rate are continuously compared to the reference values, set by the user in the configuration memory. An event is defined as the condition that occurs when the measured pressure magnitude or pressure drop rate exceeds the customer setpoint for a configurable time. In case of event, the pressure magnitude values, present in the FIFO memory and relevant to 88 samples preceding the event and 168 samples after the event, are transferred to the data memory. Only one sample out of four is stored in the event data memory. So each event is recorded in the event data memory by 64 samples (22 samples preceding the event and 42 after the event). The event data memory can store up to 1000 events. The following drawing shows the block diagram of the ELBS10: ELBS10 External voltage supply 7 Vdc Solid state switch DC/DC converters Wakeup control Battery voltage monitor Opto Line voltage monitor Power supply Time keeper / wakeup circuit / watchdog circuit C P U Local operator interface LCD display: 2 lines / 16 char 3 pushbuttons: FIFO memory RAM/ROM memory Relay DC/DC converter Opto DC/DC converter 128Kx8 event data memory Relay RS 232 transceiver A to D converter: 12 bit / 2 channel 128Kx8 event data memory Relay Relay RS 232 serial communication line 12Vdc / 20mA 8Kx8 RAM memory External line voltage sensor Available inputs Emergency solenoid valve control LineBreak Alarm relay Valve Control : armed/not armed relay Line break Warning relay External supply voltage value input 020mA line pressure input +12V pressure transmitter voltage supply

5 The ELBS10 transfers into the event data memory the following type of EVENTS: EVENT 1 pressure value decreases of a preset amount (field configurable ) EVENT 2 pressure reaches the low value limit (field configurable) EVENT 3 pressure value increases of a preset amount (field configurable) EVENT 4 pressure reaches the high value limit (field configurable) EVENT 5 (only in ACQ mode) pressure drop exceeds the preset speed drop data acquisition (field configurable) EVENT 6 pressure drop exceeds the preset speed drop valve control (field configurable) The following configurable operating mode are available: data acquisition valve control sleep In data acquisition operating mode the pressure samples relevant to an event (1,2,3,4,5) are stored in the data memory but an event does not affect the valve position. In valve control operating mode the pressure samples relevant to an event (1,2,3,4,6) are not stored in the data memory but EVENTS 2,4 and 6, cause the valve to stroke to the failsafe position. The two operating mode can be used separately or simultaneously. In valve control + acquisition mode (ACQ+VC ), in case of pressure drop only EVENT 6, EVENT 1, 2,3,4 are recorded, while EVENT 5 is not recorded. The sleep operating mode is used to inhibit both data acquisition and valve control operating modes to puts out of service the ELBS10. In case of alarm or if valve control mode is chosen but the solenoid valve control is not armed, automatically, the ELBS10 enters in the slow sampling state. In the above state the valve control and acquisition functions are off, but the ELBS10 restores to normal operation when the cause disappears

6 The following figure shows the data acquisition area in function of the time. Pressure bar Max. pressure Data acquisition area Time Pressure drop in valve control Pressure drop in acquisition Min. pressure min. The below figure shows the above described types of EVENT that could be memorised during one year of pipeline data acquisition. The Event 1, happened in January, represents a pressure that pass through the values of 30 bar and 25 bar, causing the memorisation of the events in the event data memory ( Event 1.1 & Event 1.2).In February, April, May, July September and November the pipeline pressure does not generates any Event. The Event 3 represents a pump station startup, while the Event 5 is a pump station shut down that creates a pressure drop rate higher than the ELBS10 adjustment, so that the Event 5.1, 5.2, 5.3 and 5.4 are memorised into the event data memory. The Event 6 represents a Line Break that creates a pressure drop rate higher than the pipeline curve behaviour present in the ELBS10 memory. In this case the actuator is controlled in order to stroke the pipeline valve in the fail position. Pressure (bar) Pressure behaviour relevant to one year Jan. Feb. March April May June July Aug. Sept Oct. Nov. Dec EVENT 1 EVENT 2 EVENT 3 EVENT 4 EVENT 5 EVENT 6 HIGH PRESSURE VALUE EVENT LOW PRESSURE VALUE EVENT Time (hours)

7 All the Events are memorised in the event data memory. The following formula allows to calculate the duration of the recorded time corresponding to each event and the time between two recorded pressure data in each event: recorded time duration ( min. ) = sampling rate * 256 / 60 time between 2 data( sec. ) = sampling rate * 4 For example with sampling rate at 8 sec. the time duration of the recorded data is 8*256/60 = 34.1 min, and the time between two recorded pressure data is 8*4 = 32 sec. When the event data memory reaches 90% of its capability an alarm informs about the need to discharge the memory content in a portable PC in order to allow the ELBS10 to restart its pipeline survey. The content of the event data memory can be used to buildup the pipeline pressure curve relevant to one year of survey, as shown in the below figure. The pressure curve allows to calculate the typical values of pressure and pressure drop rate of the pipeline and to enter the correct setpoints in the ELBS10. Pressure curve obtained after one year of survey Pressure (Bar) EVENT 4 HIGH PRESSURE VALUE EVENT Event Event 3 Event Event 1 Event 2 LOW PRESSUR VALUE EVENT January February March April May June July August September October November Dicember

8 2.1. Table of operating modes Operating mode Valve Control ( V C ) (configurable) Acquisition ( ACQ ) (configurable) Valve Control + Acquisition ( V C + ACQ ) (configurable) Sleep ( SLEEP ) (configurable) Slow sampling ( SLOW ) (automatic, not configurable) Description No data acquisition, only valve control in case of EVENTS 2,4, 6. Valve control mode is active only if Solenoid valve control is armed. The ELBS10 switches to slow sampling mode if : solenoid valve control is not armed. if there is an alarm. after the valve control. Valve control not active. No valve control, only data acquisition on EVENTS 1, 2, 3, 4, 5. The ELBS10 switches to slow sampling mode if : the event data memory is full and not circular mode is set. if there is an alarm. in case of low pressure (EVENT 2). in case of high pressure (EVENT 4). Valve control on EVENTS 2, 4, 6, and data acquisition on EVENTS 1, 2, 3, 4, 6. Valve control + Acquisition is active only if Solenoid valve control is armed. The ELBS10 switches to slow sampling mode if : solenoid valve control is not armed. if there is an alarm. after the valve control. If event data memory is full and not circular mode is set, the data acquisition stops, but valve control is still active. No data acquisition and valve control. No pressure and voltage measurement. The local operator interface is still available. No data acquisition and valve control. The local operator interface is still available. The ELBS10 measures the voltage supply and the pressure with a time equal to slow sampling rate (see: parameters and setpoints list). The ELBS10 display show ' SLOW' The ELBS10 restores to normal operation when the cause disappears

9 3. GENERAL CHARACTERISTICS 3.1. Valve control on pressure drop rate When the pressure drop rate exceeds the drop rate setpoint (EVENT 6), the ELBS10 sends an electric command to the solenoid valve and the actuator stroke the line valve to the fail position Valve control on high or low pressure The ELBS10 sends an electrical signal to the solenoid valve in order to stroke the line valve to the fail safe position when the pressure value is lower than the low pressure setpoint ( EVENT 2 ), or is higher than the high pressure setpoint ( EVENT 4) Valve control for simulation test The ELBS10 is fitted with an hardware/software module that allows to enter a pressure drop rate in place of the pressure transducer values, in order to verify the output command signal to the solenoid valve and the correct operation of the device. The test function force the valve control (VC) mode. The simulated pressure will start to the high pressure limit and goes to 0 bar. The test function can be stopped by the ENTER push button. If the ELBS10 will close the pipeline valve the event will not be recorded Valve control delay The ELBS10 is fitted with a configurable time delay module that allows to delay the solenoid valve command. If the condition which causes the event (low pressure EVENT 2, high pressure EVENT 4, pressure drop rate EVENT 6), disappears during the delay time, the valve control signal will not be generated Line pressure data acquisition The ELBS10 temporary rolling memory (FIFO) is continuously recording 256 samples. When an event occurs, the FIFO memory data are stored, one out of four, in the event data memory. The event data memory capacity is of 1000 events. The following setpoint are used : low pressure setpoint (EVENT 2), high pressure setpoint (EVENT 4), drop rate setpoint in valve control mode (EVENT 6), pressure drop rate setpoint in acquisition mode (EVENT 5), pressure increases of preset amount (EVENT 3), pressure decreases of preset amount (EVENT 1). When more events occur during the data acquisition, the relevant event record will be marked whit the code of the first one. The data relevant to the events can be visualised by local operator interface or by PC via RS232 serial line. By PC, the user can builtup the line pressure behaviour

10 3.6. Solenoid valve control output The ELBS10 is provided with a 24Vcc/100mA output electric signal and one changeover dry contacts of a relay, suitable to drive the solenoid valve of the actuator. A timer module allows to set the duration of the solenoid valve control (solenoid control duration). The output is active if the ELBS10 operating mode is valve control (VC) or valve control + acquisition (VC+ACQ) and solenoid valve control is armed Power supply pack In this case the ELBS10 is fitted with a battery pack with 4 x 3.6V Lithium Thionyl Chloride, size D. The battery pack is installed in an explosion proof enclosure. The battery service life depends on the sampling rate. By selecting 8 sec. as sampling rate the minimum battery life is 1 year. A battery life survey function generates a Warning signal when the next change of battery is necessary ( see next maintenance on tab. 7.1) Local operator interface The ELBS10 is fitted with a 2 lines / 16 characters LCD display and 3 pushbuttons that allows to enter the configuration parameters or to visualise the working data., ' ', 'ENTER' pushbutton,' ', 'DEC' pushbutton,' ', 'INC' pushbutton Two pushbuttons 'DEC', 'INC' are used to move into the menu, while the third 'ENTER' is used to enter the selected information. To visualise the messages of the display, the operator can choose between two available languages (English or Italian). The following operations can be done: to visualise the: event data memory content pipeline present pressure value line valve control setpoints data acquisition setpoints battery voltage value status and alarm of the ELBS10 to configure all ELBS10 parameters and setpoints to arm the valve control output relay The configuration operation are protected by password. The operator can enter in the configuration menu and change the parameters or arm the solenoid valve control output, only after entering the appropriate password. The ELBS10 is supplied by BIFFI with the default password The customer can enter its own secret password of 4 alphanumerical characters. When the new password is entered, the default one is no longer valid

11 3.9. Local communication port The ELBS10 when is connected via RS232 to a portable computer it is possible to control and program all relevant parameters. The following operations can be done: to visualise the: event data memory content pipeline present pressure value line valve control setpoints data acquisition setpoints battery voltage value status and alarm of ELBS10 to configure all ELBS10 parameters and setpoints to download the event data memory content to arm the valve control output relay 3.10.Output relays One output relay with changeover, dry contacts is available for remote signalling of alarm of ELBS10. In alarm the ELBS10 stops working. (see: alarm and warning table ). One output relay with changeover, dry contacts is available for remote signalling of warning of ELBS10. In warning all functions of the ELBS10 are available, but some parameter or variable is not correct (see alarm/ warning table). One output relay with changeover, dry contacts is available for remote signalling of solenoid valve control not armed. When the status of the relay indicates armed, the ELBS10 is ready to control the valve if the pressure is lower than the setpoint, or the pressure is higher than the setpoint or the pressure drop rate exceeds the setpoint (EVENTS 2,4,6), when one of this events is detect the ELBS10 command the line valve to fail position and switch this relay. After valve control the relay remains in the status not armed. This relay will be reset when the ELBS10 is re ARMED. (see : how to arm solenoid valve control par.) Pressure transducer The pressure transducer is supplied with the ELBS10 and is installed on the line valve at valve maker / customer care, according to Biffi instructions. The pressure transmitter must be installed downstream the line valve and converts the pipeline pressure 0100 bar to a 020mA electrical signal

12 3.13. Example of pressure drop rate control The following figure shows the ELBS10 behaviour in presence of a continuous pressure drop rate. *Pressure drop greater than setpoint EVENT6 Pressure samples in FIFO memory tm Pressure curve tm Sampling rate tm (sec.) = 26 / pressure drop rate setpoint (bar/min.) t1 (sec.) = 4 * sampling rate (sec.) t2 (sec.) = valve control delay (sec.) t3 (sec.) = solenoid control duration Slow sampling rate Valve control mode, solenoid valve control armed, no alarm tm tm tm tm Valve control Time Time t0tm Present time* t0 Time t0+t1 Time t0+t1+t2 Time t0+t1+t2+t3 Valve control not armed, slow sampling rate Measuring time of pressure drop confirmation time Delay Solenoid control duration Note : Before than the valve control action takes place, it needs that the EVENT 6 condition is confirmed for the confirmation time and the pressure decreases during the delay time. The following figure shows the ELBS10 behaviour in presence of a temporary pressure drop rate. Pressure drop greater than setpoint EVENT 6 Pressure samples in FIFO memory Pressure curve tm Sampling rate Pressure drop smaller than setpoint Event condition cleared Valve control mode, solenoid valve control armed, no alarm tm tm tm tm tm No event, normal operation Time Time t0tm Present time t0 Time t0+t1 Time t0+t1+t2 Measuring time of pressure drop Event confirmation time Delay of valve stroking tm (sec.) = 26 / pressure drop rate setpoint (bar/min.) t1 (sec.) = 4 * sampling rate (sec.) t2 (sec.) = valve control delay (sec.)

13 4. ELBS10 ELECTRONIC CARDS The ELBS10 consists of two electronic card ( mother board and display board). On the mother board are located the microprocessor, the A/D converter, the memories, the power supply stage and the input / output modules. On the display board are located the LCD display, the circuit necessary to control the 3 push buttons of the local operator interface and the RS 232 connector. The following figure shows the ELBS10 electronic cards. CN1 Output relays terminals Output relays ELBS10 2 lines / 16 char LCD display DISPLAY BOARD MOTHER BOARD CN2 Output relays terminals CN3 Terminals of local operator push buttons RS 232 connector CN4 Analog and digital input terminals CN5 External battery pack terminals 4.1 Dipswitches and Jumpers setting : Factory default : SW1 1= off, SW1 2= off J1 = open, J2 = open, J3 = 23 close, J5 = open, J6 =close

14 5. TECHNICAL CHARACTERISTICS OF ELBS10 Application: gas / liquids Ambient temperature: 20 / + 70 C Working pressure: from 0 to 300 bar Pressure drop rate: from 0.2 to 20 bar / min Pressure sampling rate: from 1 to 99 sec. adjustable Data memory capacity: 1000 events Valve stroke delay: from 0 to 999 sec. Valve stroke duration: from 0 to 255 sec. High/low pressure setpoints from 0 to 300 bar. Battery voltage: 4x3.6V,size D, Lithium Thionyl Chloride. Pressure transmitter supply: 12V / 20 ma Solenoid valve control output: 24V / 100mA PC connection: via optocoupled RS 232 serial port. 6. ELECTRICAL CONNECTIONS OF ELBS10 The following figure shows the terminals of the ELBS10 electronic cards ELBS10 cards enclosure Alarm relay: 1/2 closed (1/3 open) in case of no alarm Solenoid Valve Control Armed relay: 4/5 closed (4/6 open) when Armed Solenoid valve control relay: 1/2 closed (1/3 open) when controlling Warning relay: 4/5 closed (4/6 open) in case of no Warning Solenoid valve control +24 Vcc/100mA CN1 CN2 DISPLAY BOARD RS CN3 CN4 MOTHER BOARD CN ELBS10 CARDS V common + V battery A Line Monitor +Line Monitor + V battery B 020 ma pressure signal 0 V +12 V Diode D1 1N5821 Local operator interface controls +8 V 0 V EARTH Solenoid valve coil Pressure transmitter Optional external power supply (8V ) with external diode D

15 The following figure shows the layout of the line break protection system Battery Pack 2x3.6V Lithium Thionyl Chloride, size D battery pack A supply 7.2V + battery pack B supply 7.2V + + Alarm contacts Pushbuttons Alarm relay Local operator interface Display Warning relay ELBS10 RS 232 connector Warning contacts Voltage supply Solenoid valve control Solenoid control relay Armed relay Pressure 12V 0V signal Armed contacts close Solenoid valve Pressure transmitter Actuator Pipeline L = min. 10 D D = pipe diameter Flow Valve Flow

16 6.1 View of Eexd Line Break Cabinet. Battery Pack Eexd enclosure Line Break Eexd enclosure LCD display of local operator interface Pushbuttons of local operator interface Downstream pressure intake ELBS10 pressure transducer

17 7. MENU OF THE LOCAL OPERATOR INTERFACE OF ELBS10. Display message Push to wakeup the display functions Step 0 P XXX.X BAR SAMPLING NO ALA/WARN see: alarm list C XX.XX V XX.X OP.MODE ACQ+VC Step 1 SOLENOID CONTROL ARMED ENTER PASSWORD XXXX VALVE OPEN? NO YES Step 2 EVENTS XXX MEMORY XX % N XXX T hh:mm:ss E X.D ddmmyyyy S XX DT XXXX P XX.X BAR Step 3 PARAMETERS READ / WRITE CHANGE VALUES? YES ENTER PASSWORD XXXX NO See parameters list Step 4 TEST See test parameters list P=XXX.X BAR NORMAL TEST Step 5 SPECIAL FUNCTIONS LANGUAGE: XXXXXXXXXXXX Language list PASSWORD CHANGE ENTER PRESENT PASSWORD XXXX ENTER NEW PASSWORD XXXX MEMORY MANAGEMENT ENTER PASSWORD XXXX CLEAR? Push simultaneously to return at the step 0 of the menu

18 7.1. Parameters and setpoints list DISPLAY MESSAGE HIGH PRESSURE XXX.X BAR LOW PRESSURE XXX.X BAR VALVE CONTROL BAR / MIN XX.X ACQUISITION BAR / MIN. XX.X PRESSURE INC. XX.X BAR PRESSURE DEC. XX.X BAR DELAY XXX SEC DURATION XX SEC SAMPLING RATE XXX SEC TIME hh:mm:ss DATE ddmmyyyy OPERATING MODE ACQ + VC SLOW SAMPLING RATE XXX SEC. MEMORY MODE CIRCULAR ALARM 90 % ON OFF VOLTAGE X.X V ON VOLTAGE X.X V TRASMITTER 0mA XXX BAR TRASMITTER 20mA XXX BAR LAST MAINT. ddmmyyyy NEXT MAINT. ddmmyyyy SERIAL NUMBER XXXXXXXXXXXX DESCRIPTION ENG. RANGE ACTUAL UNIT VALUE High pressure limit ( EVENT 4 ) integer Low pressure limit ( EVENT 2 ) integer Pressure drop rate in VC valve control mode and in ACQ+VC mode ( EVENT 6 ) bar/min Pressure drop rate in ACQ acquisition mode bar/min ( EVENT 5 )see par.2 Pressure change in increase ( EVENT 3 ) bar Pressure change in decrease ( EVENT 1 ) bar Delay of the valve stroking sec Duration of the valve stroking sec Sampling rate sec Time hhmmss actual Date ddmm actual yyyy Operating mode: SLEEP, ACQuisition, Valve integer SLEEP,ACQ, VC Control, ACQuisition and Valve Control VC, ACQ+VC Slow sampling rate: sampling rate after sec valve stroking or in alarm status Event memory mode: circular / not circular boolean circ/not circular (note 1) circ Alarm when the event memory content boolean on/off off reaches 90% : ON / OFF Low voltage limit. Alarm when the supply V voltage fall down the above value. Off to on supply voltage. Min. voltage V needed to restore correct operation Pressure Transducer Zero bar Pressure Transducer Span bar Date of the last battery change Date of the next battery change Serial number ELBS ,,5 ddmm yyyy ddmm yyyy alphanum char max 12 char NEW VALUE Note 1. Circular = when the event memory is full the new event takes the place of the oldest (the first). The next one will take the place of the second, etc. Not circular = when the memory is full the acquisition function stops working. The clear memory control restarts the acquisition function. Valve control function remains active

19 7.2. Alarms and warnings list DISPLAY MESSAGE MEMORY ERROR MEMORY 90 % TRANSMITTER HIGH VOLTAGE LOW VOLTAGE TEMPERATURE SLEEP MAINTENANCE A W A A A W A W ALARM / WARNING RESET No error in CRC memory CLEAR memory control Transmitter signal < 20 ma Voltage value < 10 V Voltage value > "on voltage" Temperature value correct ACQ or VC operating mode Next maint. date > present date DESCRIPTION Alarm ( A )due to error in checking the CRC of the EEPROM memory Warning ( W )generated when the EEPROM memory reaches 90% of its capacity and if the relevant parameter is set to on. Alarm ( A )generated when the signal of the pressure transmitter is > 20.5 ma or the relevant A/D converter is blocked Alarm ( A )generated when the voltage supply is > 10 V Alarm ( A )generated when the supply voltage is lower than the relevant configured parameter( OFF VOLTAGE ) Warning ( W )generated when the temperature is higher than +75 C or lower than 20 C Alarm ( A )generated when " SLEEP " operating mode selected. Warning ( W )generated if present date is > than the configured " NEXT MAINT.ddmmyyyy " (see parameters and setpoint list) 7.3. Parameters list of the test function DISPLAY MESSAGE PRESSURE DROP XX.X BAR / MIN START TEST DESCRIPTION Pressure drop value used by the test function. START of the test function Note 1: the test function causes the valve control also if the data acquisition mode is configured. The test execution can be interrupted by pushing 'ENTER' ( or by pushing simultaneously 'DEC' and 'INC' ) of the local operator interface.see also par. 3.3 and how to launch test function

20 7.4. Instructions for using the local operator interface, ' ', 'ENTER' pushbutton,' ', 'DEC' pushbutton,' ', 'INC' pushbutton How to move in the ELBS11 menu If the display is off, push ' ' to wakeup the display control and put it in the step 0 of the menu. The display shows the following information: pressure value, ELBS11 status (normal, alarm, event, sampling), valve control output status ( = armed, fl = not armed, fi = valve control in progress ) If the display shows the message Sleep, see the procedure relevant to sleep status. Use ' ', ' ' to move into the menu and ' ' to select the variable to be visualised and the operation to be done. Push simultaneously ' ', ' ' to return at the step 0 of the menu The display automatically switches off one minute later the end of the last operation with the ELBS11 local operator interface How to change a setpoint or parameter If the display is off, push ' ' to wakeup the display control. If the display is on, push simultaneously ' ', ' ' to return at the step 0 of the menu Push ' ', ' ', ' '. The display shows the message Parameters read / write ( step 3 ) Push ' '. The display shows the message Change values?. Push ' '. The display shows the message Enter password. Enter the password (see the relevant procedure) and then push ' ' or ' ' to select the parameter or setpoint to be changed. The display shows the present value. Push ' ' and then push ' ' or ' ' until the display shows the desired new value. Push ' ' to enter the new value. The display will show the new present value. Push ' ' or ' ' to select another parameter or setpoint to be changed and repeat the procedure. Push simultaneously ' ', ' ' to return at the step 0 of the menu How to arm/disarm the solenoid valve control If the display is off, push ' ' to wakeup the display control. If the display is on, push simultaneously ' ', ' ' to return at the step 0 of the menu. The solenoid valve control output status is indicated on the display by the following symbol: = armed, fl = not armed, fi = valve control in progress Check the operating mode (see: parameters and setpoints list). If the operating mode is ACQ or SLEEP (acquisition, or sleep), the solenoid valve control can not be armed or disarmed. Check the alarm / warning list. If there is an alarm or a warning eliminate the cause of the malfunction. Push simultaneously ' ', ' ' to return at the step 0 of the menu Push ' '. The display shows the status of the solenoid valve control parameter ( step 1 ). The display message is : solenoid control armed/not armed. Push ' '. The display shows the message Enter password. Enter the password (see the relevant procedure). The ELBS10 ask you if the pipeline valve is open. If yes, push ' ' to arm the valve control.if not, or if you want to disarm the solenoid valve control push ' ' and the solenoid valve control will be disarmed. The display shows the status of the parameter. Push simultaneously ' ', ' ' to return at the step 0 of the menu How to enter the password If the display shows the message Enter password, enter the default password 0000 or the secret password (if the default one was changed) as follows: Push ' ' or ' ' to select the first character Push ' ' to enter the value Repeat the procedure to enter the second, third, and fourth characters If the password is correct the display shows the message Password correct for 2 seconds and then the display shows the message relevant to the next step of the menu. If the password is wrong the display shows the message Password wrong for 2 seconds and then the display shows the message relevant to the previous step of the menu

21 How to see the alarm/warning list If the display is off, push ' ' to wakeup the display function. If the display is on, push simultaneously ' ', ' ' to return at the step 0 of the menu Push ' ' and then ' ', ' ' to see the list of the present alarms ( A ) and warnings ( W ) Push simultaneously ' ', ' ' to return at the step 0 of the menu How to select a new language If the display is off, push ' ' to wakeup the display function. If the display is on, push simultaneously ' ', ' ' to return at the step 0 of the menu Push ' ', ' ', ' ', ' ', ' '. The display shows the message Special functions ( step 5 ) Push ' '. The display shows the present language. Push ' ' and then ' ' or ' ' to select the new language. Push ' ' to enter the new selected value. Push simultaneously ' ', ' ' to return at the step 0 of the menu How to clear the event data memory If the display is off, push ' ' to wakeup the display function. If the display is on, push simultaneously ' ', ' ' to return at the step 0 of the menu Push ' ', ' ', ' ', ' ', ' '. The display shows the message Special functions ( step 5 ) Push ' ' and then ' ', ' '. The display shows the following message Memory management. Push ' '. The display shows the following message Enter password. Enter the password (see the relevant procedure) Push ' '. The display shows the following message Clear?. Push ' ' to clear the event data memory. Push simultaneously ' ', ' ' to return at the step 0 of the menu How to enter a new password The ELBS11 is supplied with the default password 0000 to protect the configured data from undesired changes. It is possible to change the default password in a different secret password of 4 alphanumerical characters. When the new password is entered, the default password is not longer valid, so DO NOT FORGET THE NEW SECRET PASSWORD. Proceed as follows: If the display is off, push ' ' to wakeup the display function. If the display is on, push simultaneously ' ', ' ' to return at the step 0 of the menu Push ' ', ' ', ' ', ' ', ' '. The display shows the message Special functions ( step 5 ) Push ' ' and then ' '. The display shows the message Password change. Push ' ' and then enter the default password 0000 or the secret password (if the default one was changed). When the display shows the message Enter new password, enter the new desired secret password as follows: 1. Push ' ' or ' ' to select the first character 2. Push ' ' to enter the value 3. Repeat the procedure to enter the second, third, and fourth characters The display will show the message password changed for 2 seconds Push simultaneously ' ', ' ' to return at the step 0 of the menu How to read a setpoint or parameter If the display is off, push ' ' to wakeup the display function. If the display is on, push simultaneously ' ', ' ' to return at the step 0 of the menu Push ' ', ' ', ' '. The display shows the message Parameters read / write ( step 3 ) Push ' '. The display shows the message Change values?. Push ' ' and then push ' ' or ' ' to move into the parameters and setpoints list. The display shows the present value of the setpoints and of the parameters. Push simultaneously ' ', ' ' to return at the step 0 of the menu

22 How to leave the SLEEP status If the display is off, push ' ' to wakeup the display control. If the display is on, push simultaneously ' ', ' ' to return at the step 0 of the menu. The display shows the message SLEEP Push ' ', ' ', ' '. The display shows the message Parameters read / write ( step 3 ) Push ' '. The display shows the message Change values?. Push ' '. The display shows the message Enter password. Enter the password (see the relevant procedure) and then push ' ' to select the parameter operating mode. The display shows the message operating mode sleep. Push ' ' and then push ' ' or ' ' until the display shows the desired operating mode. Push ' ' to enter the new value. The display will show the new present value. Push simultaneously ' ', ' ' to return at the step 0 of the menu How to enter the SLEEP status If the display is off, push ' ' to wakeup the display control. If the display is on, push simultaneously ' ', ' ' to return at the step 0 of the menu. The display shows the message SLEEP Push ' ', ' ', ' '. The display shows the message Parameters read / write ( step 3 ) Push ' '. The display shows the message Change values?. Push ' ' The display shows the message Enter password. Enter the password (see the relevant procedure) and then push ' ' to select the parameter operating mode. The display shows the present operating mode. Push ' ' and then push ' ' or ' ' until the display shows the message operating mode sleep. Push ' ' to enter the new value. The display will show the new present value. Push simultaneously ' ', ' ' to return at the step 0 of the menu How to launch the test function How to see the event data memory content If the display is off, push ' ' to wakeup the display function. If the display is on, push simultaneously ' ', ' ' to return at the step 0 of the menu Push ' ', ' ' to enter in the step 2 of the menu. The display shows the number of events stored in the memory. Push ' ' and then ' ', ' ' to see number (N), type (E), time (T), and date (D) of each event in the memory. Push ' ' to select the event and then push ' ' or ' ' to see the values of the data relevant to the 64 sample of the event. The display shows the following data: 1) number ( S ) of the pressure sample in the event 2) time ( DT ) of the pressure sample before or later the time of the event ( time T ) 3) value ( P ) of the pressure sample Push simultaneously ' ', ' ' to return at the step 0 of the menu If the display is off, push ' ' to wakeup the display function. If the display is on, push simultaneously ' ', ' ' to return at the step 0 of the menu Push ' ', ' ', ' ', ' ' to enter in the step 4 of the menu. The display shows the message test Push ' ' to perform test. the display shows the message Enter password. Enter the password (see the relevant procedure). the display show "pressure drop 3.0 bar/min" Push ' ' or ' ' to select the desired pressure drop speed for the test. Push ' ' to enter the value. the display show "START TEST?". Push ' ' to start the test or ' ' to abort the test function. When the test operation starts, the display show the simulated pressure and the ELBS10 status. The test function force the valve control (VC) mode.the simulated pressure will start to the high pressure limit and goes to 0 bar. The test function can be stopped by the ' ' push button. If the ELBS10 will close the pipeline valve the event will not be recorded. Push simultaneously ' ', ' ' to return at the step 0 of the menu

23 8. LIBVIEW.exe PROGRAM The communication between ELBS10, line break detection module, and PC is done via RS232 digital serial line. The program LIBVIEW.exe, to be installed on the PC, runs under WINDOWS 95 operating system is supplied as an option. The program LIBVIEW.exe allows the following : to visualise the event data memory content, present pressure value, date, voltage supply value, setpoints and all internal parameters to configure the setpoints and the internal parameters The following diagram shows the electrical diagram of the cable for connecting the PC to ELBS10. DB9 Female DB9 Male SHELL 2 5 SHELL to female 9poles connector on ELBS10 line break detection module cable length max. 6.0 m. to RS 232 9poles male connector of PC 8.1. To install the LIBVIEW.exe program on the PC Insert the diskette in the floppy disk driver A and then proceed as follows: Click on START. Click on RUN. Digit the name of the program: A:\Setup.exe. Click on OK and then follow the instructions on the screen of the computer Double click on the icon LIBVIEW to open the program Alternatively: Create a new directory in C: Copy Libview.exe in the new directory Run the program Libview.exe Click on Option to select the communication port

24 8.2. To configure the ELBS10 Line Break Detection Module Click on LIBVIEW icon Click on configuration Click on OBJECT LIST Click on the to see the variable list Click on the variable name that will be configured Click on READ to see the present value Click on the value and introduce the new one Click on WRITE Click on READ to check that the new value has been entered Operating mode Sampling rate Pressure drop rate (in valve control) High pressure Low pressure Pressure increase (in acquisition mode) READ WRITE OBJECT NAME: sampling rate RANGE: 0100 E. U.: sec. VALUE: 8 Cancel

25 8.3. To visualise the event data of the ELBS10 module Click on LIBVIEW icon Click on configuration Click on events data Click on the to see the events list Click on the event number. Click on READ to see the event data on the screen Click on CLEAR ALL EVENTS to clear the event memory of the ELBS10 READ CLEAR ALL EVENTS Cancel EVENTS LIST: # 1 # 2 # m # n EVENT DATA #m: time date number of samples: sampling rate time between samples type of event battery voltage sample sample sample 1 22 sample 0 23 sample +1 sample +2 sample +3 sample to exit: Click on Cancel Click on File Click on Exit

26 To save the single event on disk : Click on File Click on save 8.4. To save all the events data of the ELBS10 module Click on configuration Click on events data To save all the events on disk : Click on File Click on Download 8.5. To visualise the ELBS10 status Click on LIBVIEW icon Click on configuration Click on read I / O Click on X Click on File Click on Exit ELBS10 status sampling, normal, sleep valve control on acquisition on event in progress event recorded ESD completed Input / Output Valve control relay SOV control Armed/not Arm. relay Alarm relay Warning relay Line pressure Battery voltage Ambient temperature Warnings Event memory 90% Temperature over range Battery maintenance FIFO status Events low pressure high pressure delta pressure increase delta pressure decrease pressure drop for data acquisition pressure drop for valve control loss of external power supply Alarms EEPROM memory failure pressure transmitter failure high voltage low voltage

27 9. Main Components of Eexd Line Break cabinet Some internal views of Eexd cabinet : Line Break Card Battery pack

28 10. TYPICAL ELECTRICAL DIAGRAM

29 11. TYPICAL OPERATING DIAGRAM

30 12. START UP INSTRUCTIONS WARNING: if the actuator is located in hazardous area a hot permit must be obtained before opening the explosion proof enclosures. Moreover the area must be cleaned from explosive mixture since batteries handling could generate electrical spark and cause explosion. See the operating diagram and the wiring diagram. The 4 batteries are supplied separately, so the first of all it needs to install the batteries in the actuator enclosure. Proceed as follows: open the actuator battery pack enclosure and put the batteries inside the battery holders. Be careful at the battery polarity, since the reversed polarity causes fast batteries discharge. See the drawing, in battery maintenance paragraph, to correctly install the batteries. by a multimeter measure the voltage on the terminals + and. The voltage should be about 7.2Volt. press the pushbutton ' ' to wakeup the display. enter the desired operating mode, VC valve control, ACQ data acquisition, or VC+ACQ valve control + data acquisition ( see: How to leave the SLEEP status procedure ) and then enter the desired values of setpoints and parameters (see: Parameters and setpoint list and relevant procedures). The default password is enter present TIME, and DATE. Enter LAST MAINT = present date enter NEXT MAINT = present date + 1 year (with Lithium batteries) to set the date of the warning signal and maintenance request. use the local operator interface to check that all parameters and setpoints are in the correct range. use the local operator interface to check the pressure value, the alarm / warning list, the voltage and temperature values (see: step 0 of the menu ). If there is any alarm or warning, use the display messages to findout the cause of the malfunction. if everything is correct and valve control operating mode is configured, launch the test function (see relevant procedure). At the end of the test open the valve. BE CAREFUL, the test function can causes the actuator to close the valve, so do not perform the test function if valve closure is not allowed. if the valve is open and if valve control operating mode is selected, arm the solenoid valve control output (see: How to arm the solenoid valve control procedure ). Wait until the display switches off

31 13. TO RESTORE THE VALVE CONTROL FUNCTION In valve control operating mode (VC) and after a solenoid valve control due to EVENTS 2, 4, or 6, the ELBS10 close the pipeline valve and enters in the slow sampling state and the pipeline survey functions are inhibited. To reopen the valve and restore the survey functions it needs to rearm the solenoid valve control as follows: rearm the valve 681 (pneumatic pilot / hand return valve) see operating diagram open the pipeline valve see Instructions for using the local operator interface: how to arm the solenoid valve control. 14. BATTERY MAINTENANCE To change battery pack proceed as follows: use the local operator interface to put the ELBS 10 in solenoid valve control output not armed (see: How to arm the solenoid valve control output) and then in SLEEP mode (see: How to enter the SLEEP status). open the actuator battery pack enclosure. put the new battery inside the battery holders. Be careful at the battery polarity, since the reversed polarity causes fast batteries discharge. See the below drawing to correctly install the batteries. WARNING: if the actuator is located in hazardous area a hot permit must be obtained before opening the explosion proof enclosures. Moreover the area must be cleaned from explosive mixture since batteries handling could generate electrical spark and cause explosion. by a multimeter measure the voltage on the terminals + and. The voltage should be about 7.2Volt. see STARTUP INSTRUCTIONS to restart with line survey operations. +VB1: + of multimeter +VB2: + of multimeter 0V : of multimeter Battery pack: 4 x 3.6 V Lithium Thionyl Chloride batteries, D size, high drain capability (for example type SAFT LSH 20) 0V :To CN5,6 of ELBS10 card +VB1: To CN5,5 of ELBS10 card +VB2: To CN5,2 of ELBS10 card

32 BIFFI ITALIA s.r.l. DIREZIONE, UFFICIO COMMERCIALE,,STABILIMENTO HEADQUARTER, SALES DEPARTMENT, FACTORY Fiorenzuola d'arda (Piacenza) Italy Tel. (0523) Telex Bifior.I Telecopier (0523)