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Liquiphant M/S with electronic insert FEL58 + Nivotester FTL325N

Hauser

Appendix

Structure of the measuring

system

System components

The measuring system's devices are displayed in the following diagram (example):

CH1

[Ex

ia]

CH1

CH2

CH3

[Ex ia]

A0025771

Liquiphant M/S

1-channel Nivotester FTL325N

3-channel Nivotester FTL325N

Description of use as a protective system

The sensor's tuning fork vibrates at its intrinsic frequency. The vibration frequency decreases as the

density increases. This change in the frequency causes the current signal to change. There is a choice

of two operating modes:

• Minimum detection

• Maximum detection

MIN detection

The measuring system is used to protect against a level that is too low (e.g. pump dry running

protection, protection against emptying or protection against insufficient filling).

In normal operation, the tuning fork is covered by liquid and the measuring system reports the

"GOOD" state. If the tuning fork is free, the device assumes the safe state and signals the

demand mode.

MAX detection

The measuring system is used to protect against a level that is too high (e.g. overfill prevention).

In normal operation, the tuning fork is not covered by liquid and the measuring system reports

the "GOOD" state. If the tuning fork is covered, the device assumes the safe state and signals the

demand mode.

The switch point depends on the installation. It is in the area of the tuning fork, see the following

diagram.

Содержание Liquiphant M/S

Страница 1: ...ring system Products Solutions Services Special Documentation Liquiphant M S with electronic insert FEL58 Nivotester FTL325N Functional Safety Manual SD01522F 00 EN 02 16 71329744 CH1 CH1 Ex ia CH1 CH2 CH2 CH3 CH3 Ex ia ...

Страница 2: ...types 17 SIL label on the nameplate 18 Safety function 19 Definition of the safety function 19 Restrictions for use in safety related applications 19 Use in safety instrumented systems 22 Device behavior during operation 22 Device configuration for safety related applications 22 Proof testing 26 Life cycle 38 Requirements for personnel 38 Installation 38 Operation 38 Maintenance 38 Repair 38 Modif...

Страница 3: ...Liquiphant M S with electronic insert FEL58 Nivotester FTL325N Endress Hauser 3 Declaration of conformity A0028074 ...

Страница 4: ...ivation of a NAMUR switching unit e g transmitter safety related PLC via the NAMUR interface according to EN 50227 DIN 19234 NAMUR or IEC 60947 5 6 Version II 7 One Liquiphant with a 1 channel Nivotester for the activation of an actuator or a safety related PLC via switching contacts for instance Version III 8 One Liquiphant with a 3 channel Nivotester switching contacts are switched in series ...

Страница 5: ...sed for other levels Other safety related characteristic values Please note the following for the tables below A common cause factor β 10 has been assumed in the calculations indicated below For multi channel systems the PFDavg values already contain common cause failures for the specific wiring scheme The PFDavg values only apply to the particular wiring scheme for which the values have been calc...

Страница 6: ...e 4 1 s covered free 0 5 s free covered PTC test sequence A 5 93 PTC test sequence B 6 2 PTC test sequence C 7 93 1 This value takes into account failure types relevant to the function of the electronic components according to Siemens SN29500 2 During this time all diagnostic functions are executed at least once 3 Time between error detection and error response 4 Step response time as per DIN EN 6...

Страница 7: ...vered free 0 5 s free covered PTC test sequence A 5 92 PTC test sequence B 6 34 38 PTC test sequence C 7 92 1 This value takes into account failure types relevant to the function of the electronic components according to Siemens SN29500 2 During this time all diagnostic functions are executed at least once 3 Time between error detection and error response 4 Step response time as per DIN EN 61298 2...

Страница 8: ...ault reaction time 3 3 s System reaction time 4 1 s covered free 0 5 s free covered PTC test sequence A 5 96 PTC test sequence B 6 51 56 PTC test sequence C 7 96 1 This value takes into account failure types relevant to the function of the electronic components according to Siemens SN29500 2 During this time all diagnostic functions are executed at least once 3 Time between error detection and err...

Страница 9: ...on time 3 3 s System reaction time 4 1 s covered free 0 5 s free covered PTC test sequence A 5 92 PTC test sequence B 6 34 38 PTC test sequence C 7 92 1 This value takes into account failure types relevant to the function of the electronic components according to Siemens SN29500 2 During this time all diagnostic functions are executed at least once 3 Time between error detection and error response...

Страница 10: ...10 This factor is based on the failure rates indicated above If additional measures are implemented during installation to prevent common cause errors as defined in Table D 1 the β factor can possibly be reduced to 5 Possible measures are Sensors installed in a physically separate location Cable routed separately between Liquiphant and Nivotester Separate protection from environmental influences i...

Страница 11: ...stem reaction time 4 1 s covered free 0 5 s free covered PTC test sequence A 5 92 PTC test sequence B 6 34 38 PTC test sequence C 7 92 1 This value takes into account failure types relevant to the function of the electronic components according to Siemens SN29500 2 During this time all diagnostic functions are executed at least once 3 Time between error detection and error response 4 Step response...

Страница 12: ...10 This factor is based on the failure rates indicated above If additional measures are implemented during installation to prevent common cause errors as defined in Table D 1 the β factor can possibly be reduced to 5 Possible measures are Sensors installed in a physically separate location Cable routed separately between Liquiphant and Nivotester Separate protection from environmental influences i...

Страница 13: ...lure types relevant to the function of the electronic components according to Siemens SN29500 2 During this time all diagnostic functions are executed at least once 3 Time between error detection and error response 4 Step response time as per DIN EN 61298 2 5 Proof test coverage when the level is approached or when the sensor is removed and the tines are immersed in a medium of similar density and...

Страница 14: ...Liquiphant M S with electronic insert FEL58 Nivotester FTL325N 14 Endress Hauser Certificate A0028061 ...

Страница 15: ... This symbol alerts you to a dangerous situation Failure to avoid this situation can result in serious or fatal injury CAUTION CAUTION This symbol alerts you to a dangerous situation Failure to avoid this situation can result in minor or medium injury NOTICE NOTE This symbol contains information on procedures and other facts which do not result in personal injury Symbols for certain types of infor...

Страница 16: ...72F 00 KA00173F 00 1 The document is provided with the device The documentation is available on the Internet www endress com Safety instructions depending on the selected option Approval Additional safety instructions XA ZE are supplied with certified device version Please refer to the nameplate for the relevant safety instructions 1 with T13 aluminum housing separate connection compartment Nivote...

Страница 17: ...ess connection All 030 Probe length type All 040 Electronics output 8 FEL58 SIL NAMUR test button L H signal 050 Housing cable entry All 060 Additional option All 570 Service All 580 Test certificate All 600 Sensor design All 895 Marking All Valid firmware version 01 00 01 and higher Valid hardware version 01 01 and higher Valid device versions for safety related use Liquiphant S FTL70 FTL71 Order...

Страница 18: ...Ex ia IIC NEPSI Ex ia IIC SIL FM IS Cl I II III Div 1 Gr A G SIL CSA IS Cl I II III Div 1 Gr A G SIL TIIS Ex ia IIC SIL labeling in Japan INMETRO Ex ia Ga IIC SIL 020 Housing 1 3 Rail mounting 22 5 mm 1 channel Rail mounting 45mm 3 channel 030 Power supply All 040 Switch output 1 3 1x SPDT level 1x SPST alarm 3x SPDT level 1x SPST alarm 995 Marking All Valid hardware version 02 00 and higher SIL l...

Страница 19: ...nstallation conditions from the Operating Instructions The application specific limits must be observed The specifications from the Operating Instructions must not be exceeded 15 Density of the medium Operation is only permitted with liquids Depending on the configured density setting the density of the liquid must be as follows if the switch position is 0 7 the density must be over 0 7 g cm commo...

Страница 20: ...have the effect that the demand mode of the safety function is not detected and the device will not switch as intended Buildup from 0 5 mm 0 02 in is detected with low diagnostic coverage Solid particles heterogeneous mixtures only for minimum detection The medium may not contain solid particles with a diameter greater than 5 mm 0 2 in Solid particles lodged between the tines of the tuning fork ca...

Страница 21: ...that it is free uncovered External vibration In systems exposed to strong external vibrations e g in the 400 to 1200 Hz range acceleration spectral density 1 m s Hz or ultrasound with cavitation the safety function must be verified by simulating a demand mode prior to operation Accidental switchings may sporadically occur if a strong frequency from an external source is superimposed on the frequen...

Страница 22: ...a cable open circuit 6 6 mA reliably detected as a short circuit Version II to VI The safety related output signal consists of one switching contact per channel Channel 1 terminal 4 and 5 For the 3 channel Nivotester also Channel 2 terminal 22 and 23 Channel 3 terminal 26 and 27 The switching contacts work with quiescent current safety they are closed in the GOOD state The switching contacts are d...

Страница 23: ...operation Switch on the operating mode at the left switch Mode of operation Function Switch position MAX safety MAX Top MIN safety MIN Bottom Ex ia 1 2 H H 2 2 2 8 mA 0 6 1 0 mA L L I FTL325N A B MAX MIN A0027861 A Multiplexer cycle time 2 s B Isolating amplifier as per NAMUR IEC 60947 5 6 ...

Страница 24: ...n the graphic below Standard setting Always use if possible 0 5 kg dm 0 5 Bottom See B in the graphic below Special settings Extremely light liquids e g liquefied natural gas U 0 V B A ρ ρ 1 1 2 2 A0026156 A Standard setting density 0 7 kg dm A1 1 l 0 264 gal or 1 dm 61 02 in A2 0 7 kg 1 54 lbs B Special setting density 0 5 kg dm B1 1 l 0 264 gal or 1 dm 61 02 in B2 0 5 to 0 7 kg 1 10 to 1 54 lbs ...

Страница 25: ...ion 1 2 4 3 2 1 II L Low 0 4 to 1 2 mA With Not applicable III None L Low 0 4 to 1 2 mA With L Low 0 4 to 1 2 mA With 2 IV With 2 V 3 VI 1 1 Only for 3 channel Nivotester FTL325N CH1 Ex ia 1 2 ON 1 1 2 ON CH1 L 1 2 mA H 2 1 mA 2 A0026315 1 Operating and display element 1 channel Nivotester FTL325N 1 DIL switch error current signal 2 1 mA 1 2 mA 1 fault on off position 2 2 Light emitting diodes LED...

Страница 26: ...esting Check the operativeness and safety of safety functions at appropriate intervals The operator must determine the time intervals The values and figures in the Additional safety related characteristic values section can be used to this end 5 The check must be carried out in such a way that it is proven that the protective system functions perfectly in interaction with all components Proof test...

Страница 27: ... relay terminal 15 and 16 has not de energized no fault is present at the start of the proof test step 1 The proof test can and may only be performed if the device state is GOOD The status of the individual output signal is indicated by a measuring device or a downstream component of the safety path e g safety related PLC actuator For more information 40 It is advisable to document the steps of th...

Страница 28: ...on II to VI test sequence A MAX detection 32 Remove and immerse in a medium of similar density and viscosity Activate simulation by pressing the test button on the Liquiphant or Nivotester Version II to VI test sequence B 34 Activate simulation by pressing the test button on the Nivotester Check the switch point under reference operating conditions Version II to VI test sequence C MAX detection 36...

Страница 29: ...been passed and must be aborted Step 2 1 Lower the level or remove the tuning fork of the sensor that has been removed out of the medium until the tuning fork is completely free 2 Check the current at terminal 2 After retracting the fork plus a response time of approx 1 s the current must be between 0 6 to 1 0 mA If the current is outside the specified tolerance a fault has occurred in the safety ...

Страница 30: ...rted Step 2 1 Raise the level or immerse the tuning fork of the sensor that has been removed into the medium until the tuning fork is fully covered 2 Check the current at terminal 2 After immersing the fork plus a response time of approx 1 s the current must be between 0 6 to 1 0 mA If the current is outside the specified tolerance a fault has occurred in the safety path The proof test has not bee...

Страница 31: ...ensor that has been removed out of the medium until the tuning fork is completely free 2 After immersing the fork plus a response time of approx 1 s check the status of the safety contacts Version Terminal II III IV V VI 4 5 Open Not applicable Open Open Open 22 23 Not applicable Open Open Open Not applicable 26 27 Not applicable Open Open Open Not applicable If one or more safety contacts are clo...

Страница 32: ...he sensor that has been removed into the medium until the tuning fork is fully covered 2 After immersing the fork plus a response time of approx 1 check the status of the safety contacts Version Terminal II III IV V VI 4 5 Open Not applicable Open Open Open 22 23 Not applicable Open Open Open Not applicable 26 27 Not applicable Open Open Open Not applicable If one or more safety contacts are close...

Страница 33: ... passed and must be aborted Step 2 1 Press and hold the test button 2 Check the current at terminal 2 The current must be 0 mA If the current is outside the specified tolerance a fault has occurred in the safety path The proof test has not been passed and must be aborted Step 3 1 Release the test button 2 Check the current at terminal 2 After releasing the button plus a response time of approx 3 s...

Страница 34: ...heck the status of the safety contacts Version Terminal II III IV V VI 4 5 Open Not applicable Open Open Open 22 23 Not applicable Open Open Open Not applicable 26 27 Not applicable Open Open Open Not applicable If one or more safety contacts are closed a fault has occurred in the safety path The proof test has not been passed and must be aborted Step 3 1 Release the test button on the Liquiphant ...

Страница 35: ...t fork must be clearly visible in the area around the switch point e g use a see through vessel If using a longer or heavier Liquiphant fix the sensor in a vertical position and move the vessel Fit a scale clearly indicating the three switch points on the device or vessel see the following table The immersion depth is measured from the lower edge of the fork Version I connect the Liquiphant to a s...

Страница 36: ...2 Check the status of the safety contacts Version Terminal II III IV V VI 4 5 Closed Not applicable Closed Closed Closed 22 23 Not applicable Closed Closed Closed Not applicable 26 27 Not applicable Closed Closed Closed Not applicable If one or more safety contacts are open a fault has occurred in the safety path The proof test has not been passed and must be aborted Step 2 1 Slowly further immers...

Страница 37: ...I IV V VI 4 5 Closed Not applicable Closed Closed Closed 22 23 Not applicable Closed Closed Closed Not applicable 26 27 Not applicable Closed Closed Closed Not applicable If one or more safety contacts are open a fault has occurred in the safety path The proof test has not been passed and must be aborted ...

Страница 38: ...n 22 Maintenance Maintenance information 26 Alternative monitoring measures must be taken to ensure process safety during configuration proof testing and maintenance work on the device Repair Repair means a one to one replacement of components Repairs on the devices must always be carried out by Endress Hauser Safety functions cannot be guaranteed if repairs are carried out by anybody else Excepti...

Страница 39: ...ress Hauser manufacturing center Modifications to SIL capable devices onsite at the user s plant are possible following approval by the Endress Hauser manufacturing center In this case the modifications must be performed and documented by an Endress Hauser service technician Modifications to SIL capable devices by the user are not permitted Decommissioning For detailed information on decommissioni...

Страница 40: ...mum detection Maximum detection MIN detection The measuring system is used to protect against a level that is too low e g pump dry running protection protection against emptying or protection against insufficient filling In normal operation the tuning fork is covered by liquid and the measuring system reports the GOOD state If the tuning fork is free the device assumes the safe state and signals t...

Страница 41: ...1 7 0 28 7 0 28 A0026065 3 Dimensions mm in A Installation from above B Installation from below C Installation from the side For information about the switch point under reference operating conditions please refer to the Technical Information 16 Correct installation is a prerequisite for safe operation of the device ...

Страница 42: ...tronic insert FEL56 Electronic insert FEL58 Commissioning or proof test report Test sequence A Approach the level Remove and immerse in a medium of similar density and viscosity B Simulation on Liquiphant by pressing the test button 1 C Check the switch point under reference operating conditions 2 Current at terminal 2 Test step Termin al Set point FEL56 Set point FEL58 Actual value Step 1 GOOD st...

Страница 43: ... g by PLC 2oo3 VI Three Liquiphants 1 x SIL 2 x level control s Commissioning or proof test report Test sequence A Approach the level Remove and immerse in a medium of similar density and viscosity B Simulation on Liquiphant by pressing the test button 1 Simulation on Nivotester by pressing the test button C Check the switch point under reference operating conditions 2 Version Test step Terminal I...

Страница 44: ...re CP01008Z 11 Functional Safety in the Process Industry Risk Reduction with Safety Instrumented Systems Version history Version Changes Valid for hardware version SD00161F 00 EN 02 10 MAX SD00170F 00 EN 13 13 MIN First version 01 00 SD01522F 00 EN 01 15 MIN SD00170F and MAX SD00161F merged Nivotester updated to IEC 61508 2011 02 00 SD01522F 00 EN 02 16 New Declaration of Conformity 02 00 www addr...

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