Operating Instructions OPTISWITCH 3100 C with contactess eectronic switch
Contents Contents 1 About this document 1.1 Function... 5 1.2 Target group... 5 1.3 Symboism used... 5 2 For your safety 2.1 Authorised personne... 6 2.2 Appropriate use.... 6 2.3 Warning about misuse... 6 2.4 Genera safety instructions... 6 2.5 CE conformity... 6 2.6 SIL conformity... 7 2.7 Safety information for Ex areas.... 7 3 Product description 3.1 Configuration.... 8 3.2 Principe of operation... 8 3.3 Adjustment... 9 3.4 Storage and transport... 10 4 Mounting 4.1 Genera instructions... 11 4.2 Mounting information... 12 5 Connecting to power suppy 5.1 Preparing the connection... 15 5.2 Connection procedure... 15 5.3 Wiring pans, singe chamber housing... 17 6 Setup 6.1 Genera.... 19 6.2 Adjustment eements... 19 6.3 Function chart... 20 7 Maintenance and faut rectification 7.1 Maintenance... 22 7.2 Faut rectification... 22 7.3 Exchanging the eectronics.... 23 7.4 Instrument repair... 24 8 Dismounting 8.1 Dismounting steps... 25 8.2 Disposa... 25 2 OPTISWITCH 3100 C - with contactess eectronic switch
Contents 9 Functiona safety 9.1 Genera.... 26 9.2 Panning... 27 9.3 Setup... 29 9.4 Reaction during operation and in case of faiure. 29 9.5 Recurring function test... 29 9.6 Safety-reated characteristics... 30 10 Suppement 10.1 Technica data.... 34 10.2 Dimensions... 37 10.3 Certificates... 40 Suppementary operating instructions manuas Information: OPTISWITCH 3100 C is avaiabe in different versions. Depending on the seected version, suppementary operating instructions manuas wi aso be incuded in the deivery. The suppementary operating instructions manuas are isted in section "Product description". Operating instructions manuas for accessories and repacement parts Tip: To ensure reiabe use and operation of your OPTISWITCH 3100 C we offer accessories and repacement parts. The corresponding operating instructions manuas are: Operating instructions manua "Osciator" OPTISWITCH 3100 C - with contactess eectronic switch 3
About this document 1 About this document 1.1 Function This operating instructions manua has a the information you need for quick setup and safe operation. Pease read this manua before you start setup. 1.2 Target group This operating instructions manua is directed to trained personne. The contents of this manua shoud be made avaiabe to these personne and put into practice by them. 1.3 Symboism used Information, tip, note This symbo indicates hepfu additiona information. Caution, warning, danger This symbo informs you of a dangerous situation that coud occur. Ignoring this cautionary note can impair the person and/ or the instrument. Ex appications This symbo indicates specia instructions for Ex appications. à List The dot set in front indicates a ist with no impied sequence. Action This arrow indicates a singe action. 1 Sequence Numbers set in front indicate successive steps in a procedure. 4 OPTISWITCH 3100 C - with contactess eectronic switch
For your safety 2 For your safety 2.1 Authorised personne A operations described in this operating instructions manua must be carried out ony by trained, speciaist personne authorised by the operator. For safety and warranty reasons, any interna work on the instruments must be carried out ony by personne authorised by the manufacturer. 2.2 Appropriate use OPTISWITCH 3100 C is a sensor for eve detection. Detaied information on the appication range of OPTISWITCH 3100 C is avaiabe in chapter "Product description". 2.3 Warning about misuse Inappropriate or incorrect use of the instrument can give rise to appication-specific hazards, e.g. vesse overfi or damage to system components through incorrect mounting or adjustment. 2.4 Genera safety instructions OPTISWITCH 3100 C is a high-tech instrument requiring the strict observance of standard reguations and guideines. The user must take note of the safety instructions in this operating instructions manua, the country-specific instaation standards (e.g. the VDE reguations in Germany) as we as a prevaiing safety reguations and accident prevention rues. 2.5 CE conformity OPTISWITCH 3100 C is in CE conformity with EMC (89/336/ EWG), fufis the NAMUR recommendation NE 21 and is in CE conformity with NSR (73/23/EWG). Conformity has been judged acc. to the foowing standards: EMC: - Emission EN 61326/A1: 1998 (cass B) - Susceptibiity EN 61326: 1997/A1: 1998 LVD: EN 61010-1: 2001 The instrument is designed for industria use. OPTISWITCH 3100 C - with contactess eectronic switch 5
For your safety 2.6 SIL conformity OPTISWITCH 3100 C fufis the requirements for functiona safety acc. to IEC 61508. You wi find further information in chapter "Functiona safety". 2.7 Safety information for Ex areas Pease note the Ex-specific safety information for instaation and operation in Ex areas. These safety instructions are part of the operating instructions manua and come with the Exapproved instruments. 6 OPTISWITCH 3100 C - with contactess eectronic switch
Product description 3 Product description 3.1 Configuration Scope of deivery Components The scope of deivery encompasses: OPTISWITCH 3100 C eve sensor Documentation - this operating instructions manua - Suppementary instructions manua "Pug connector for eve sensors" - optiona - Ex specific safety instructions (with Ex versions), if necessary further certificates OPTISWITCH 3100 C consists of the foowing components: Housing cover Housing with eectronics process fitting with tuning fork 1 2 3 Fig. 1: OPTISWITCH 3100 C - with pastic housing 1 Housing cover 2 Housing with eectronics 3 Process fitting 3.2 Principe of operation Area of appication OPTISWITCH 3100 C is a eve sensor with tuning fork for eve detection. It is designed for industria use in a areas of process technoogy and is preferaby used for buk soids. Typica appications are overfi and dry run protection. Thanks to its simpe and robust measuring system, OPTISWITCH 3100 C is virtuay unaffected by the chemica and physica properties of the soid. OPTISWITCH 3100 C - with contactess eectronic switch 7
Product description It functions even when exposed to strong externa vibration or changing products. Soid detection in water If OPTISWITCH 3100 C was ordered for soid detection in water, the tuning fork is set to the density of water. In air or when immersed in water (density: 1 g/cm³ / 0.036 bs/in), OPTISWITCH 3100 C signas "uncovered". Ony when the vibrating eement is aso covered with soids (e.g. sand, sudge, grave etc.) wi the sensor signa "covered". Faut monitoring The eectronics of OPTISWITCH 3100 C continuousy monitors the foowing criteria: Correct vibrating frequency Line break to the piezo drive If one of these fauts is detected or in case the power suppy fais, the eectronics takes on a defined switching condition, i.e. the contactess eectronic switch opens (safe condition). Physica principe Power suppy The tuning fork is piezoeectricay energised and vibrates at its mechanica resonance frequency of approx. 150 Hz. When the tuning fork is submerged in the product, the vibration ampitude changes. This change is detected by the integrated osciator and converted into a switching command. OPTISWITCH 3100 C is a compact instrument, i.e. it can be operated without externa evauation system. The integrated eectronics evauates the eve signa and outputs a switching signa. With this switching signa, a connected device can be operated directy (e.g. a warning system, a PLC, a pump etc.). The exact range of the votage suppy is specified in the "Technica data" in the "Suppement". 3.3 Adjustment With the factory setting, products with a density of >0.02 g/cm³ (>0.0008 bs/in³) can be measured. It is possibe to adapt the instrument for products with ower density >0.008 g/cm³ (>0.0003 bs/in³). On the eectronics modue you wi find the foowing indicating and adjustment eements: signa amp for indication of the switching condition (green/ red) potentiometer for adaptation to the product density 8 OPTISWITCH 3100 C - with contactess eectronic switch
Product description mode switch for seection of the output current 3.4 Storage and transport Packaging Storage and transport temperature Your instrument was protected by packaging during transport. Its capacity to hande norma oads during transport is assured by a test acc. to DIN 55439. The packaging of standard instruments consists of environment-friendy, recycabe cardboard. In addition, the sensor is provided with a protective cover of cardboard. For specia versions PE foam or PE foi is aso used. Dispose of the packaging materia via speciaised recycing companies. Storage and transport temperature see "Suppement - Technica data - Ambient conditions" Reative humidity 20 85 % OPTISWITCH 3100 C - with contactess eectronic switch 9
Mounting 4 Mounting 4.1 Genera instructions Switching point Moisture In genera, OPTISWITCH 3100 C can be mounted in any position. The instrument must be mounted in such a way that the vibrating eement is at the height of the requested switching point. Use the recommended cabe (see chapter "Connecting to power suppy") and tighten the cabe gand. You can give your OPTISWITCH 3100 C additiona protection against moisture penetration by eading the connection cabe downward in front of the cabe entry. Rain and condensation water can thus drain off. This appies mainy to mounting outdoors, in areas where moisture is expected (e.g. by ceaning processes) or on cooed or heated vesses. Fig. 2: Measures against moisture penetration Transport Do not hod OPTISWITCH 3100 C on the vibrating eement. Especiay with fange and tube versions, the sensor can be damaged by the weight of the instrument. Remove the protective cover just before mounting. Pressure/Vacuum Handing The process fitting must be seaed if there is gauge or ow pressure in the vesse. Before use, check if the sea materia is resistant against the measured product and the process temperature. The vibrating eve switch is a measuring instrument and must be treated accordingy. Bending the vibrating eement wi destroy the instrument. 10 OPTISWITCH 3100 C - with contactess eectronic switch
Mounting Warning: The housing must not be used to screw the instrument in! Appying tightening force on the housing can damage its interna mechanica parts. To screw in, use the hexagon above the thread. 4.2 Mounting information Socket Fiing opening Horizonta instaation The vibrating eement shoud protrude into the vesse to avoid buidup. For that reason, avoid using mounting bosses for fanges and screwed fittings. This appies particuary to use with adhesive products. Insta the instrument in such a way that the tuning fork does not protrude directy into the fiing stream. Shoud such an instaation ocation be necessary, mount a suitabe baffe above or in front of the tuning fork. If such an instaation ocation shoud be necessary, mount a suitabe protective sheet above or in front of the vibrating eement - see iustration a.). In abrasive soids, mounting acc. to iustration b. has proven. A spout forms in the concave protective sheet preventing wear of the protective sheet. To achieve a very precise switching point, you can insta OPTISWITCH 3100 C horizontay. However, if the switching point can have a toerance of a few centimeters, we recommend mounting OPTISWITCH 3100 C approx. 20 incined to the vesse bottom to avoid buidup. OPTISWITCH 3100 C - with contactess eectronic switch 11
Mounting a. b. 20 Fig. 3: Horizonta instaation a Protective sheet b Concave protective sheet for abrasive soids Infowing materia Fow If OPTISWITCH 3100 C is mounted in the fiing stream, unwanted switching signas can be generated. Mount OPTI- SWITCH 3100 C at a ocation in the vesse where no disturbing infuence from e.g. fiing openings, agitators, etc. can occur. To minimise fow resistance caused by the tuning fork, OPTISWITCH 3100 C shoud be mounted in such a way that the surfaces of the fork are parae to the product movement. 1 2 Fig. 4: Orientation of the tuning fork in case of fow 1 Marking with screwed version 2 Direction of fow 12 OPTISWITCH 3100 C - with contactess eectronic switch
Mounting Adhesive products In case of horizonta mounting in adhesive products, the surfaces of the tuning fork shoud be vertica in order to reduce buidup on the tuning fork. On the screwed version you wi find a marking on the hexagon. With this, you can check the position of the tuning fork when screwing it in. When the hexagon touches the sea, the thread can be sti turned by approx. haf a turn. This is sufficient to reach the recommended instaation position. With fange versions, the fork is directed to the fange hoes. 1 Fig. 5: Vertica instaation - marking 1 Marking on top with screwed version Baffe protection against faing rocks In appications such as grit chambers or setting basins for coarse sediments, the vibrating eement must be protected against damage with a suitabe baffe. >150 Fig. 6: Baffe protection against damages OPTISWITCH 3100 C - with contactess eectronic switch 13
Connecting to power suppy 5 Connecting to power suppy 5.1 Preparing the connection Note safety instructions Take note of safety instructions for Ex appications Seect power suppy Seect connection cabe Aways observe the foowing safety instructions: Connect ony in the compete absence of ine votage In hazardous areas you shoud take note of the appropriate reguations, conformity and type approva certificates of the sensors and power suppy units. Connect the power suppy acc. to the foowing diagrams. Osciator VB 60C is designed in protection cass 1. To maintain this protection cass, it is absoutey necessary that the ground conductor be connected to the interna ground termina. Take note of the genera instaation reguations. As a rue, connect OPTISWITCH 3100 C to vesse ground (PA), or in case of pastic vesses, to the next ground potentia. On the side of the housing there is a ground termina between the cabe entries. This connection serves to drain off eectrostatic charges. In Ex appications, the instaation reguations for hazardous areas must be given priority. The data for power suppy are stated in the Technica data in the Suppement. OPTISWITCH 3100 C is connected with standard cabe with round cross-section. An outer cabe diameter of 5... 9 mm (0.2... 0.35 in) ensures the sea effect of the cabe entry. If cabe with a different diameter or wire cross section is used, exchange the sea or use an appropriate cabe connection. In hazardous areas, ony use approved cabe connections for OPTISWITCH 3100 C. Seect connection cabe for Ex appications Take note of the corresponding instaation reguations for Ex appications. 5.2 Connection procedure With Ex instruments, the housing cover may ony be opened if there is no exposive atmosphere present. Proceed as foows: 14 OPTISWITCH 3100 C - with contactess eectronic switch
Connecting to power suppy 1 Unscrew the housing cover 2 Loosen compression nut of the cabe entry 3 Remove approx. 10 cm (4 in) of the cabe mante, strip approx. 1 cm (0.4 in) insuation from the ends of the individua wires 4 Insert the cabe into the sensor through the cabe entry 5 Lift the opening evers of the terminas with a screwdriver (see foowing iustration) 6 Insert the wire ends into the open terminas according to the wiring pan 7 Press down the opening evers of the terminas, you wi hear the termina spring cosing 8 Check the hod of the wires in the terminas by ighty puing on them 9 Tighten the compression nut of the cabe entry, the sea ring must competey encirce the cabe 10 Screw the housing cover back on The eectrica connection is finished. Fig. 7: Connection steps 5 and 6 OPTISWITCH 3100 C - with contactess eectronic switch 15
Connecting to power suppy 5.3 Wiring pans, singe chamber housing The foowing iustrations appy to the non-ex as we as to the EEx d version. Housing overview 4 4 4 1 2 3 Fig. 8: Materia versions, singe chamber housing 1 Pastic (not with EEx d) 2 Auminium 3 Stainess stee (not with EEx d) 4 Fiter eement for pressure compensation (not with EEx d) Eectronics and connection compartment 1 5 2 4 3 Wiring pan Fig. 9: Eectronics and connection compartment 1 Potentiometer for switching point adaptation (covered) 2 DIL switch for mode adjustment 3 Ground termina 4 Terminas 5 Contro amp We recommend connecting OPTISWITCH 3100 C in such a way that the switching circuit is open when there is a eve signa, ine break or faiure (safe condition). 16 OPTISWITCH 3100 C - with contactess eectronic switch
Connecting to power suppy The contactess eectronic switch is aways shown in nonoperative condition. The instrument is used for direct contro of reays, contactors, magnet vaves, warning ights, horns etc. It must not be operated without an intermediatey connected oad, because the eectronics woud be destroyed if connected directy to the mains. It is not suitabe for connection to ow votage PLC inputs. The domestic current briefy beow 1 ma after switching off the oad so that contactors the hoding current of which is ower than the permanenty fowing domestic current of the eectronics are nevertheess switched off reiaby. 1 Fig. 10: Wiring pan 1 Screen OPTISWITCH 3100 C - with contactess eectronic switch 17
Setup 6 Setup 6.1 Genera The numbers in brackets refer to the foowing iustrations. Function/Configuration On the eectronics modue you wi find the foowing indicating and adjustment eements: Potentiometer for switching point adaptation (1) DIL switch for mode adjustment - min./max. (2) Signa amp (5) Note: As a rue, aways set the mode with mode switch (2) before starting the setup of OPTISWITCH 3100 C. The switching output wi change if you set the mode switch (2) afterwards. This coud possiby trigger other connected instruments or devices. 6.2 Adjustment eements 5 1 2 4 3 Fig. 11: Osciator VB 60C - contactess eectronic switch 1 Potentiometer for switching point adaptation 2 DIL switch for mode adjustment 3 Ground termina 4 Terminas 5 Contro amp 18 OPTISWITCH 3100 C - with contactess eectronic switch
Setup Switching point adaptation (1) Mode adjustment (2) Signa amp (5) With the potentiometer you can adapt the switching point to the soid. It is aready factory-preset and must be adjusted ony in specia cases. By defaut, the potentiometer of OPTISWITCH 3100 C is set to mid position (>0.02 g/cm³ or >0.0008 bs/in³). In case of very ight-weight soids, you have to turn the potentiometer to the compete eft position (>0.008 g/cm³ or >0.0003 bs/in³). Hence the OPTISWITCH 3100 C wi be more sensitive and can detect ight-weight soids more reiaby. For instruments detecting soids in water, these vaues are not appicabe. The potentiometer is preset and must not be changed. With the mode adjustment (min./max.) you can change the switching condition of the output. You can set the required mode acc. to the "Function chart" (max. -max. detection or overfi protection, min. -min. detection or dry run protection). We recommend connecting acc. to the quiescent current principe (contactess eectronic switch is open when the switching point is reached) because the contactess eectronic switch takes on the same (safe) condition if a faiure is detected. Contro amp for indication of the switching condition. green = switch cosed red = switch open red (fashing) = faiure 6.3 Function chart The foowing chart provides an overview of the switching conditions depending on the adjusted mode and eve. max. mode Overfi protection Leve Switching status Contro amp 1 2 max. mode Overfi protection Switch cosed Green 1 2 Switch open red OPTISWITCH 3100 C - with contactess eectronic switch 19
Setup min. mode Dry run protection Leve Switching status Contro amp 1 2 min. mode Dry run protection Switch cosed Green 1 2 Faiure of the suppy votage (min./max. mode) any Switch open red 1 2 Switch open Faiure any 1 2 Switch open fashes red 20 OPTISWITCH 3100 C - with contactess eectronic switch
Maintenance and faut rectification 7 Maintenance and faut rectification 7.1 Maintenance When used as directed in norma operation, OPTISWITCH 3100 C is competey maintenance-free. 7.2 Faut rectification Checking the switching signa? OPTISWITCH 3100 C signas "covered" when the vibrating eement is not submerged (overfi protection)? OPTISWITCH 3100 C signas "uncovered" when the vibrating eement is submerged (dry run protection) Suppy votage too ow à Check the power suppy Eectronics defective à Push the mode switch (min./max.). If the instrument then changes the mode, the instrument may be mechanicay damaged. Shoud the switching function in the correct mode sti be fauty, return the instrument for repair. à Push the mode switch. If the instrument then does not change the mode, the osciator may be defective. Exchange the osciator. à Check if there is buidup on the vibrating eement, and if so, remove it. Unfavourabe instaation ocation à Mount the instrument at a ocation in the vesse where no dead zones or mounds can form. à Check if the vibrating eement is covered by buidup on the socket. Wrong mode seected à Set the correct mode on the mode switch (max: overfi protection; min: dry run protection). Wiring shoud be carried out acc. to the quiescent current principe. OPTISWITCH 3100 C - with contactess eectronic switch 21
Maintenance and faut rectification? Signa amp fashes red Eectronics has detected a faiure à Exchange instrument or return it for repair 7.3 Exchanging the eectronics In genera, a osciators of series VB60 can be interchanged. If you want to use an osciator with a different signa output, you can downoad the corresponding operating instructions manua from our homepage under Downoads. With EExd instruments, the housing cover may ony be opened if there is no exposive atmosphere present. Proceed as foows: 1 Switch off power suppy 2 Unscrew the housing cover 3 Lift the opening evers of the terminas with a screwdriver 4 Pu the connection cabes out of the terminas 5 Loosen the two screws with a Phiips screwdriver (size 1) 1 2 Fig. 12: Loosen the screws 1 Eectronics modue 2 Screws (2 pcs.) 6 Remove the od osciator 22 OPTISWITCH 3100 C - with contactess eectronic switch
Maintenance and faut rectification 7 Compare the new osciator with the od one. The type abe of the osciator must correspond to that of the od osciator. This appies particuary to instruments used in hazardous areas. 8 Compare the settings of the two osciators. Set the adjustment eements of the new osciator to the settings of the od osciator. Information: Make sure that the housing is not rotated during the eectronics exchange. Otherwise the pug may be in a different position ater. 9 Insert the osciator carefuy. Make sure that the pug is in the correct position. 10 Screw in and tighten the two screws with a Phiips screwdriver. 11 Insert the wire ends into the open terminas according to the wiring pan 12 Cose the opening evers of the terminas, you wi hear the termina spring cosing 13 Check the hod of the wires in the terminas by ighty puing on them 14 Check the tightness of the cabe entry. The sea ring must competey encirce the cabe. 15 Screw the housing cover back on The eectronics exchange is finished. 7.4 Instrument repair If a repair is necessary, pease proceed as foows: You can downoad a return form from our Internet homepage http://www.krohne-mar.com/fieadmin/media-ounge/pdf- Downoad/Specimen_e.pdf. By doing this you hep us carry out the repair quicky and without having to ca for additiona information. Print and fi out one form per instrument Cean the instrument and pack it damage-proof Attach the competed form and possiby aso a safety data sheet to the instrument OPTISWITCH 3100 C - with contactess eectronic switch 23
Dismounting 8 Dismounting 8.1 Dismounting steps Warning: Before dismounting, be aware of dangerous process conditions such as e.g. pressure in the vesse, high temperatures, corrosive or toxic products etc. Take note of chapters "Mounting" and "Connecting to power suppy" and carry out the isted steps in reverse order. With Ex instruments, the housing cover may ony be opened if there is no exposive atmosphere present. 8.2 Disposa OPTISWITCH 3100 C consists of materias which can recyced by speciaised recycing companies. We have purposey designed the eectronic modues to be easiy separabe. WEEE directive 2002/96/EG This instrument is not subject to the WEEE directive 2002/96/ EG and the respective nationa aws (in Germany, e.g. EektroG). Pass the instrument directy on to a speciaised recycing company and do not use the municipa coecting points. These may ony be used for privatey used products acc. to the WEEE directive. Correct disposa avoids negative effects to persons and environment and ensures recycing of usefu raw materias. Materias: see "Technica data" If you cannot dispose of the instrument propery, pease contact us about disposa methods or return. 24 OPTISWITCH 3100 C - with contactess eectronic switch
Functiona safety 9 Functiona safety 9.1 Genera Vaidity Area of appication Safety function Reevant standards Safety requirements This safety manua appies to measuring systems consisting of OPTISWITCH 3100 C vibrating eve switches and integrated osciator VB60C. The instrument corresponds to a subsystem of type B. The sensor software must correspond at east to version 1.03 or higher. The measuring system can be used for eve detection of powders and granues which meet the specific requirements of the safety technoogy, e.g.: Mode "max" for overfi protection Mode "min" for dry run protection The measuring system is quaified in both modes to meet the foowing requirement degree acc. to IEC 61508-2: SIL2 with architecture 1oo1D (singe channe) SIL3 with architecture 1oo2D (doube-channe/redundant) With a specia factory setting, the measuring system is aso suitabe for detection of soids in water (see operating instructions manua). The safety function of this measuring system is the detection and signaing of the condition of the vibration eement. The safe condition depends on the mode: In mode "max": condition "covered" In mode "min": condition "uncovered" IEC 61508-1, -2, -4 - Functiona safety of eectrica/eectronic/programmabe eectronic systems The faiure imit vaues for a safety function, depending on the SIL cass (of IEC 61508-1, 7.6.2) Safety integrity eve Low demand mode High demand mode SIL PFD avg PFH 4 >=10-5 up to <10-4 >=10-9 up to <10-8 3 >=10-4 up to <10-3 >=10-8 up to <10-7 2 >=10-3 up to <10-2 >=10-7 up to <10-6 1 >=10-2 up to <10-1 >=10-6 up to <10-5 OPTISWITCH 3100 C - with contactess eectronic switch 25
Functiona safety Safety integrity of the hardware for safety-reated subsystems of type B (IEC 61508-2, 7.4.3) Safe faiure fraction Hardware faut toerance SFF HFT = 0 HFT = 1 HFT = 2 <60 % not permitted SIL1 SIL2 60 % up to <90 % SIL1 SIL2 SIL3 90 % up to <99 % SIL2 SIL3 (SIL4) >=99 % SIL3 (SIL4) (SIL4) Genera instructions and restrictions Assumptions 9.2 Panning The measuring system must be used acc. to the appication The appication-specific imits must be maintained and the specifications not exceeded. Acc. to the specifications in the operating instructions manua, the current oad of the output circuits must be within the imits. It must be used ony in products to which the materias of the vibrating system are sufficienty chemicay resistant. Note the foowing items for use as dry run protection system: Avoid buidup on the vibrating system (possiby smaer proof test intervas) Avoid granuation size of the product > 15 mm For the impementation of FMEDA (Faiure Mode, Effects and Diagnostics Anaysis) the foowing assumptions form the basis: Faiure rates are constant, wear of the mechanica parts is not taken into account Faiure rates of externa power suppies are not incuded Mutipe errors are not taken into account The average ambient temperature during the operating time is +40 C (+104 F) The environmenta conditions correspond to an average industria environment The ifetime of the components is around 8 to 12 years (IEC 61508-2, 7.4.7.4, remark 3) The processing unit evauates the output circuit of the measuring system acc. to the quiescent current principe. 26 OPTISWITCH 3100 C - with contactess eectronic switch
Functiona safety Low demand mode High demand mode The communication via the IIC bus interface is ony used for defaut scaing and for service purposes. The repair time (exchange of the measuring system) after a fai-safe error is eight hours (MTTR = 8 h) In the mode with the owest demand rate, the reaction time of a connected contro and processing unit to dangerous detectabe errors is max. 1 hour. If the demand rate is ony once a year, then the measuring system can be used as safety-reevant subsystem in "ow demand mode" (IEC 61508-4, 3.5.12). If the ratio of the interna diagnostics test rate of the measuring system to the demand rate exceeds the vaue 100, the measuring system can be treated in the way it is executing a safety function in the mode with ow demand rate (IEC 61508-2, 7.4.3.2.5). Corresponding characteristics is the vaue PFD avg (average Probabiity of dangerous Faiure on Demand). It is dependent on the test interva T Proof between the function tests of the protective function. For number vaues see paragraph "Safety-technica characteristics". If the "ow demand rate" does not appy, the measuring system as safety-reevant part system in "high demand mode" shoud be used (IEC 61508-4, 3.5.12). The faut toerance time of the compete system must be higher than the sum of the reaction times or the diagnostics test periods of a components in the safety chain. Corresponding characteristics is the vaue PFH (faiure rate). For number vaues see paragraph "Safety-technica characteristics". Safe condition and faut description The safe condition of the measuring system is the switched off status (quiescent current principe): VB60C (contactess eectronic switch) -switch open A fai-safe faiure (safe faiure) exists if the measuring system changes to the defined safe condition without demand of the process. If the interna diagnosis system recognises a faiure, the safe condition is taken up. OPTISWITCH 3100 C - with contactess eectronic switch 27
Functiona safety A dangerous undetected faiure exists if the measuring system does not go to the defined safe condition when required by the process. Configuration of the processing unit The processing unit must evauate the output circuit of the measuring system by taking the quiescent current principe into account. The processing unit must correspond to the SIL eve of the measuring chain. 9.3 Setup Mounting and instaation The prevaiing pant conditions infuence the safety of the measuring system. For this reason, carefuy observe the mounting and instaation instructions in the operator's manua. It is especiay important to make sure the mode setting (min./ max.) is correct. 9.4 Reaction during operation and in case of faiure The adjustment eements must not be modified during operation. If modifications have to be made during operation, carefuy observe the safety functions. Faut signas that may appear are described in the appropriate operating instructions manua. In case of detected faiures or faut signas, the entire measuring system must be switched out of service and the process hed in a safe condition by means of other measures. An eectronics exchange is easiy possibe and described in the operating instructions manua. If due to the detected faiure, the eectronics or the compete sensor is exchanged, the manufacturer must be informed (inc. a faut description). 9.5 Recurring function test The recurring function test serves to revea potentia dangerous errors that are otherwise not discernibe. The function of the measuring system must be checked at adequate intervas. 28 OPTISWITCH 3100 C - with contactess eectronic switch
Functiona safety The operator is responsibe for choosing the type of test and the intervas in the stated time frame. The time frame depends on the PFD avg vaue acc. to the chart and diagram in section "Safety-reated characteristics". In high demand rate, no recurring function test is arranged in IEC 61508. A proof of the functiona efficiency is seen in the more frequent demand of the measuring system. In doube channe architectures it is usefu to proof the redundancy by recurring function tests in appropriate intervas. The test must be carried out in a way that verifies the fawess operation of the safety functions in conjunction with a system components. This is ensured by a controed reaching of the response height during fiing. If fiing up to the response height is not possibe, then a response of the measuring system must be triggered by a suitabe simuation of the eve or the physica effect. The methods and procedures used during the tests must be stated and their suitabiity must be specified. The tests must be documented. If the function test proves negative, the entire measuring system must be switched out of service and the process hed in a safe condition by means of other measures. In the doube channe architecture 1oo2D this appies separatey to both channes. 9.6 Safety-reated characteristics The faiure rates of the eectronics and the vibrating system were determined by an FMEDA acc. to IEC 61508. Basis for the cacuations are component faiure rates acc. to SN 29500. A vaues reate to an average ambient temperature of +40 C (+104 F) during operation. The cacuations are further based on the instructions stated in chapter "Panning". Overfi protection Mode switch is set to "max" λ sd 0 FIT safe detected faiure (1 FIT = faiure/10 9 h) λ su 506 FIT safe undetected faiure λ dd 124 FIT dangerous detected faiure λ du 41 FIT dangerous undetected faiure SFF > 94 % Safe Faiure Fraction OPTISWITCH 3100 C - with contactess eectronic switch 29
Functiona safety DC S 0 % Diagnosis coverage DC S = λ sd /(λ sd + λ su ) DC D 75 % Diagnosis coverage DC D = λ dd /(λ dd + λ du ) Dry run protection Mode switch is set to "min" λ sd 0 FIT safe detected faiure λ su 481 FIT safe undetected faiure λ dd 135 FIT dangerous detected faiure λ du 56 FIT dangerous undetected faiure SFF > 92 % Safe Faiure Fraction DC S 0 % Diagnosis coverage DC S = λ sd /(λ sd + λ su ) DC D 71 % Diagnosis coverage DC D = λ dd /(λ dd + λ du ) Genera data T Diagnosis Diagnosis test period MTBF = MTTF + MTTR max. usefu ife of the measuring system for the safety function 100 sec 1.45x10 6 h approx. 10 years Architecture 1oo1D - Overfi protection Singe channe architecture SIL2 (Safety Integrity Leve) HFT = 0 (Hardware Faut Toerance) Mode switch is set to "max" PFD avg T Proof = 1 year T Proof = 5 years T Proof = 10 years < 0.018 x 10-2 < 0.089 x 10-2 < 0.178 x 10-2 PFH [1/h] < 4.1 x 10-8 /h Architecture 1oo1D - Dry run protection SIL2 (Safety Integrity Leve) HFT = 0 (Hardware Faut Toerance) Mode switch is set to "min" PFD avg T Proof = 1 year T Proof = 5 years T Proof = 10 years < 0.024 x 10-2 < 0.122 x 10-2 < 0.243 x 10-2 PFH [1/h] < 5.6 x 10-8 /h 30 OPTISWITCH 3100 C - with contactess eectronic switch
Functiona safety Doube channe architecture Here you see an exampe how the measuring system in doube channe architecture can be used in an appication with demand rate SIL3. ACommon Cause Factor of beta = 10 % (worst case) is taken into account. If the instruments are used in another (mutipe channe) architecture, the vaues must be cacuated for the seected appication by means of the above faiure rates. Architecture 1oo2D - Overfi protection SIL3 (Safety Integrity Leve) HFT = 1 (Hardware Faut Toerance) Mode switch is set to "max" PFD avg T Proof = 1 year T Proof = 5 years T Proof = 10 years < 0.018 x 10-3 < 0.090 x 10-3 < 0.180 x 10-3 PFH [1/h] < 1.7 x 10-8 /h Architecture 1oo2D - Dry run protection SIL3 (Safety Integrity Leve) HFT = 1 (Hardware Faut Toerance) Mode switch is set to "min" PFD avg T Proof = 1 year T Proof = 5 years T Proof = 10 years < 0.025 x 10-3 < 0.120 x 10-3 < 0.250 x 10-3 PFH [1/h] < 1.9 x 10-8 /h Time-dependent process of PFD avg The time-dependent process of PFD avg reacts in the time period up to 10 years virtuay inear to the operating time. The above vaues ony appy to the T Proof interva, after which a recurring function test must be carried out. OPTISWITCH 3100 C - with contactess eectronic switch 31
Functiona safety 4 PFD avg 3 2 1 1 5 10 T Proof Fig. 13: Time-dependent process of PFD avg 1) 1 PFD avg = 0 2 PFD avg after 1 year 3 PFD avg after 5 years 4 PFD avg after 10 years 1) Numbers see in the above charts. 32 OPTISWITCH 3100 C - with contactess eectronic switch
Suppement 10 Suppement 10.1 Technica data Genera data Materia 316L corresponds to 1.4404 or 1.4435 Materias, wetted parts - Process fitting - Thread 316L - Process fitting - Fange 316L - Process sea Kingersi C-4400 - Tuning fork 316L - Extension tube ø 43 mm (ø 1.7 in) 316L Materias, non-wetted parts - Housing pastic PBT (Poyester), Au-die casting powder-coated, 316L - Sea ring between housing and housing cover - Ground termina 316L Weights - with pastic housing 1500 g (53 oz) - with Auminium housing 1950 g (69 oz) - with stainess stee housing 2300 g (81 oz) Max. atera oad NBR (stainess stee housing), siicone (Au/ pastic housing) 600 N (135 bf) ongitudina to the fork side Output variabe Output Contactess eectronic switch Modes (adjustabe) min/max Integration time - when immersed approx. 0.5 s - when aid bare approx. 1 s Ambient conditions Ambient temperature on the housing Storage and transport temperature -40 +80 C (-40 +176 F) -40 +80 C (-40 +176 F) Process conditions Parameter eve of soids Process pressure -1 16 bar/-100 1600 kpa (-14.5 232 psi) OPTISWITCH 3100 C - with contactess eectronic switch 33
Suppement 2 16 bar (232psi) 6 bar (87psi) 1-50 C (-58 F) 0 C (32 F) 50 C (122 F) 100 C (212 F) 150 C (302 F) 200 C (392 F) 250 C (482 F) Fig. 14: Process pressure - Product temperature 1 Product temperature 2 Process pressure OPTISWITCH 3100 C of 316L Process temperature (thread or fange temperature) with temperature adapter (option) -50 +150 C (-58 +302 F) -50 +250 C (-58 +482 F) 2 80 C (176 F) 3 40 C (104 F) 0 C (32 F) -50 C (-58 F) -40 C (-40 F) 50 C (122 F) 100 C (212 F) 150 C (302 F) 200 C (392 F) 1 250 C (482 F) Fig. 15: Ambient temperature - Product temperature 1 Product temperature 2 Ambient temperature 3 Temperature range with temperature adapter Density - Standard >0.02 g/cm³ (>0.0007 bs/in³) - adjustabe >0.008 g/cm³ (>0.0003 bs/in³) 34 OPTISWITCH 3100 C - with contactess eectronic switch
Suppement Eectromechanica data Cabe entry/pug (dependent on the version) - Singe chamber housing 1x cabe entry M20x1.5 (cabe-ø5 9 mm), 1x bind stopper M20x1.5, attached 1x cabe entry M20x1.5 or: 1x cabe entry ½ NPT, 1x bind stopper ½ NPT, 1x cabe entry ½ NPT or: Spring-oaded terminas 1x pug M12x1, 1x bind stopper M20x1.5 for wire cross section up to 1.5 mm² (0.0023 in²) Adjustment eements Mode switch - min. min. detection or dry run protection - max. max. detection or overfi protection Votage suppy Power suppy 20 253 VAC, 50/60 Hz, 20 253 VDC Domestic current requirement approx. 3 ma (via oad circuit) Load current - min. 10 ma - max. 400 ma (with I >300 ma the ambient temperature can be max. +60 C/+140 F) max. 4 A up to 40 ms Eectrica protective measures Protection IP 66/IP 67 Overvotage category III Protection cass I Approvas 2) ATEX II 1/2G, 2G EExdIIC T6 ATEX II 1/2 DIP66 T 2) Deviating data with Ex appications: see separate safety instructions OPTISWITCH 3100 C - with contactess eectronic switch 35
Suppement 10.2 Dimensions OPTISWITCH 3100 C 3) ~ 69mm (2 23/ 32") ø 77mm (3 1/ 32") ~ 69mm (2 23/ 32") ø 77mm (3 1/ 32") ~ 116mm (4 9/ 16") ø 84mm (3 5/ 16") 112mm (4 13/32") 117mm (4 39/64") 114mm (4 31/64") ½ M20x1,5/ ½ NPT M20x1,5/ ½ NPT M20x1,5 1 2 3 Fig. 16: Housing versions 1 Pastic housing 2 Stainess stee housing 3 Auminium housing 3) A dimensions in mm (inch). 36 OPTISWITCH 3100 C - with contactess eectronic switch
Suppement 220mm (8 21/32") 150mm (5 29/32") 22mm (55/64") 33mm (1 19/64") G1½A ø 43mm (1 11/ 16 ") Fig. 17: OPTISWITCH 3100 C - Threaded version G1½A OPTISWITCH 3100 C - with contactess eectronic switch 37
Suppement 178mm (7 1/64") ø 34mm (1 11/ 32 ") Fig. 18: Temperature adapter 38 OPTISWITCH 3100 C - with contactess eectronic switch
Suppement 10.3 Certificates SIL decaration of conformity Fig. 19: SIL decaration of conformity OPTISWITCH 3100 C - with contactess eectronic switch 39
Suppement CE decaration of conformity Fig. 20: CE decaration of conformity 40 OPTISWITCH 3100 C - with contactess eectronic switch
Suppement Manufacturer decaration Fig. 21: Manufacturer decaration OPTISWITCH 3100 C - with contactess eectronic switch 41
Suppement 42 OPTISWITCH 3100 C - with contactess eectronic switch
Suppement OPTISWITCH 3100 C - with contactess eectronic switch 43
Subject to change without notice