OPERATING INSTRUCTIONS FOR Flow Meters of the series: ” Ex
Contents
1. 15 co 17 General intormationis s rss len dadas 17 The single pICIcUp s Sr e RO e e ER need 17 Thiedvalpicle p ts oe nett ete despecta viet ee re gta 17 Application with directional detection 18 CustomissoluflORis mussen qur Seeds titt ea le ee ee gins 19 Safety instructions for installation and operation in hazardous 20 Maintenance and repairs sc iore ee ERR E RP DS 21 Maintenance and repair of devices e 21 Technical data for the VHM flow meter 2 0 00 00 cece eee eee eens 21 Dimensions for VHM flow meter 22 Dimensions of the AHM mounting plate 23 Type Code for VHM AHM us anne nenn 24 Technical data for VIL S Ex VTL S Ex single 25 Electronic connection data for VIL S Ex 1 25 Housing data for VIL S Ex VTL S Ex Type Plate for VIL S Ex VTL S Ex 25 Technical data for VEL S Ex single pickups 26 Electronic connection data for 1 26 Housing data for VEL S Type Plate for VEL S Ex 26 Technical data for VDL S Ex dual pickups lees 27 Electronic connection data for 1 27 Hous2. 270nF 14 76 20 C 4 F to 50 C 12 F CTL DWD V06 6 08 4 lt Technical data for dual pick up VDL S Ex VSE measurement VSP 20 VHM Two cahnnel picky Connectionfor NONE potential equalisation Dimensions 68mm Height 33mm Output signals Coding pod J1 Duplication of Flow meter output signals Coding pad J1 quadruplication of Flow meter output signals Electronic connection data for VDL S Ex EC Type Examination Certificate Type Code Certification Nominal voltage Switching currents Signal frequency Max input voltage Max input current Max power consumption Internal resistance Internal inductance Internal capacitance Additional equipment Note that the restricted flow rate quadrupling of the pulse Housing data VDL S Ex Dimensions Protection class Material Weight Max surface temperature Ambient temperature Seals Coil casing Connector BVS 05 ATEX E 121 FM ID 3026923 VDL S Ex 1G EEx ia IIC T6 TA IS Div 1 GRPS A B C D TA T6 8 10V l lt 2 7 mA gt 3 7 mA 5 Hz 500 Hz Pulse doubling 10 Hz 500 Hz Pulse quadrupling U lt 18 7 V lt 36 5 mA P lt 110 mW R lt O L lt O C lt 270 nF isolated switching amplifier MK13 P Ex0 24VDC K15 measurement range due to the 68 mm h 33
3. 80 C 4 F 176 F 20 C 50 C 4 F 122 F Ambient temperature Viscosity range 1 20 000 mm s Installation position Direction of flow Mounting Dimensions for VHM flow meters VHM 01 02 AUD a b AD Any See the direction of the arrow on the flow meter On the mounting plate with piping connections or as a piping system custom version VHM 03 6 M6 0 860 VHM 01 1 68 29 44 12 VHM 01 2 68 29 44 18 VHM 02 1 68 29 44 18 VHM 02 2 68 34 44 18 VHM 02 3 68 43 44 18 VHM 03 2 99 50 27 Dimensions in mm 22 6 M6 0 760 6 M6 0 750 6 M6 0 740 6 M6 1 075 10 25 81 M 12 2 700 VSE measurement Dimensions of the AHM mounting plate AHM 01 02 for side mounting AHM for side mounting Position ofthe cable connections Signal pick up Flow meter Mounting plate for side mounting Permissible Size oA D E H L M N O ring G 1 8 6 07 x 1 78 01 4 u 1 8 G nu ya 1 8 NPT ole a 7 65 x 1 78 02 1 2 3 VA NPT G PIN 52 20 35 M6 Pre NPT G IG3 8 PM 12 42 x 1 78 mn NPT 1 2 Dimensions in 23 VSE measurement Type Code for VHM AHM VHM flow meter Signal pick up Series works determined Type of seal F FEP FPM standard Type of Subplate connection ics Piping Material V2A VAA Backlash Reduced tolerance Normal toleranc
4. For viscosities from 1 to 10 mm s a measuring hydraulic oil with a viscosity of 21 mm s at a temperature of 20 C For accuracy of up to 1 0 of the measured value and a repeat accuracy of the measurement range with viscosities gt 10 mm s VSE specifies a 0 5 is specified Important Make sure that the maximum permissible operating pressure specified for the flow meter cannot be exceeded in any operating mode of the system Note the flow rate range of the flow meter which depends on the viscosity of the medium to be measured Installing the flow meter The flow meter should be installed in a location with easy access so that it non return valve can be easily removed to clean the gears Since flow meters can operate in any mounting position and any direction of flow you can mount them at any location you want in your system When installing the flow meter you must make sure that there is always some fluid remaining in the flow meter and that it can never run dry even when the system is not in operation For this reason the outlet of the flow meter should always be under a slight flow meter pressure since this firmly fixes the measuring unit of the flow meter in the fluid column the measuring unit is supported in this fashion by the fluid tank column and the pipeline cannot drain empty In critical cases or when the pipe can run dry when the system is on standby or stopped it is strongly recommended to install an addit
5. None Page 2 of 3to BVS OSATEX E 121 This certificate may only be reproduced in its entirety and without change Dinnendahlstrasse 9 44809 Bochum Germany Phone 49 234 3696 105 Fax 49 234 3696 110 36 VSE measurement Y EXAM BBG Pr f und Zertifizier GmbH We confirm the correctness of the translation from the German original In the case of arbitration only the German wording shall be valid and binding 44809 Bochum 22 08 2005 BVS Schu Mi A 20050297 EXAM BBG Priif und Zertifizier GmbH Certification body Special services unit Page 3 of 3 to BVS OSATEX E 121 This certificate may only be reproduced in its entirety and without change Dinnendahlstrasse 9 44809 Bochum Germany Phone 49 234 3696 105 Fax 49 234 3696 110 37 iliam Member f te Cheba FM Approvals 1151 Boston Providence Turnpike PO Box 9102 Norwood MA 02062 USA 781 762 4300 781 762 9375 www fmglobal com CERTIFICATE OF COMPLIANCE HAZARDOUS CLASSIFIED LOCATION ELECTRICAL EQUIPMENT This certificate is issued for the following equipment Type VHM VaL S Ex Flow Sensors IS VI ABCD T6 T4 20 lt Ta lt 50 C 4 F lt Ta lt 122 F Entity Entity Parameters U 18 7 V 1 7 36 5 mA P 110 mW 0 27 pF L 0 mH Housing D Volume Sensor 303 Stainless Steel 1 4305 preamplifier housing aluminum E Volume Sensor 303 Stainless Steel 1 4305 preamplifier housin
6. acetylen gt e g hydrogen gt e g ethylen gt D e g propane The most dangerous substances are placed in Group IIC Atex or Class 1 Devision 1 FM Devices authorized for Group IIC Atex or Class 1 Devision 1 FM can also be operated with substances from Group IIA and Group IIB Atex or Class 1 Devision 2 FM The ignition temperature defined as the temperature at which a mixture self ignites in a fixed test setup is directly related to the temperature class The temperature class specifies the maximum surface temperature of the electrical equipment and must be lower than the ignition temperature of the flammable substance to prevent ignition The ambient temperatures and media temperatures permitted for the Ex type flow meters are classified according to the corresponding temperature classes and these temperatures absolutely must be observed see page 33 Media and Ambient temperatures The Ex versions of the VSE flow meters are listed with European standards in the ia instinsically safe when two independent errors occure category and are permitted for use in Group IIC environments They can be used in Zone 1 and 2 for gases and vapors when the permissible media and ambient temperatures are observed and the installation regulations are followed The FM approved ambient and media temperature for Ex type flow me ters are determinted in the corresponding temperature classes and must
7. whether the failure is caused by a faulty bearing or a blockage of the gears The owner is responsible for regular inspections maintenance and recalibration The flow meters may not be used in any case when damage or a fault is detected in the meter We advise to a yearly control and recalibration Repairs may only be performed by the manufacturer or by authorized personnel Any other repairs must be examined by an expert Maintenance and repair of devices To ensure fast and economical repair of the flow meters and other components it is absolutely necessary to include a precise description of the problem or error with the package you send back to the factory Furthermore a safety data sheet must also be enclosed in which it is clearly stated which medium was used with this flow meter and any potential hazards the corresponding medium may attribute The legal regulations relating to occupational safety accident prevention regulations regulations relating to environmental protection waste dis posal and water resources law oblige companies their employees and other persons and the environment from harmful effects when handling hazardous substances If additional safety precautions are still required in spite of thorough draining and cleaning of the flow meter then this informa tion absolutely must be enclosed in the package sent back to the factory Note that examination and repair of any flow meters sent to VSE Volumen te
8. 145 psi 20 80 C 4 F 176 F 20 50 C 4 F 122 F 1 20 000 mm s Any See the direction of the arrow on the flow meter Block mounting IP 54 Preamplifier VRLI 01800 N Standard Ex intrinsically safe 01500 N Standard Ex intrinsically safe rl amp E UU 40 Flow meter VHM 01 22TS1 1 Standard S Special shaft D D Shoft 25 Aiza ee 18 29 VSE measurement Flow meter with preamplifier VHM 02 12TS13 1 V L 02S00 M12x1 Earth M4 20 Type code VHM Titan Flow Meter VHM Titan 30 Preamplifier VRLI 02500 N Standard Ex intrinsically safe VWLI 02500 N Standard Ex intrinsically safe Flow meter VHM 02 127513 1 Standard Special shaft D D Shaft FE o6 18 Signal pick up Bearing Type Standard D D Shaft S Special shaft Series modification code Sequential custom no Construction s Custom Material Titanium Backlash Reduced backlash Normal backlash Increased backlash Measuring Technical data range Technical data Technical data Size VHM 01 VHM 02 VSE measurement Technical data for single pick ups VRL S Ex VWL S Ex for VHM Titan VRL S Ex 6 T VHM Single pick up onnection for potential equalisation 3 4 Block diagram
9. Pin Nr 1 line color brown DIS Power supply U Pin Nr 3 line color blue Power supply OV Pin configuration Electronic connection data for VRL S Ex VWL S Ex for VHM Titan EC Type Examination Certificate Type Code Certification Nominal voltage Switching currents Signal frequency Max input voltage Max input current Max power consumption Internal resistance Internal inductance Internal capacitance Additional equipment BVS 05 ATEX E 121 FM ID 3026923 VRL S Ex VTL S Il 1G EEx ia IIC T6 T4 IS CLI Divl GRPS A B C D 6 8 10V u lt 2 7 MA gt 3 7 6 Hz 500 Hz U lt 24 3 V lt 36 5 mA lt 110 mW R lt 0 L lt 0 C lt 270 nF isolated switching amplifier MK13 P Ex0 24VDC K15 31 VSE measurement Housing data for VRL S Ex VWL S Ex for VHM Titan Dimensions Protection class IP 54 Material Al Mg 4 5 Mn 0 7 Weight 125g Max surface temperature 4 T6 80 176 F Ambient temperature Seals FPM Coil casing 2K Epoxy Connector VSE Standard Connector M12 20 C 50 C 4 F 122 F See the section Dimensions for VHM Titan Type plates for VRL S Ex VWL S Ex for VHM Titan BVS 05 ATEX E 121 VSE o II 1G EEx ia IIC T6 T4 D 58809 Neuenrade Rao duo CE oss Type VRLx x 1 x Ex 4 20 C 80 C Serial No XXX Tamb 20 C 60 C Bauj
10. be strictly maintained The Ex type of the VSE flow meter is evaluated by the American standards of the FM as intrinsically safe IS for operating in Class 1 Devision 1 Groups A B C D and temperature classes 4 6 see page 33 The VSE flow meters are not authorized for use in areas subject to a dust explosion hazard VSE measurement General information on using devices with intrinsically safe circuits DIN EN 50014 and FM3600 contains general regulations for the design construction and testing of electrical equipment intended for use in explo sive hazardous atmospheres and specifies the contents of the documenta tion provided with the devices For appropriate operation in explosive atmospheres the national rules and regulations absolutely must be observed and followed at all times The following contains some information in particular information on the basic directives from the European Parliament 94 9 EC ATEX95 and of the U S standard NEC NFPA7O Intrinsically safe electrical equipment can be connected to the intrinsically safe con nections on the isolated switching amplifier All equipment must meet the requirements for operation in the zone specifying the present explosive atmosphere When equipment is connected electrically a Verification of Intrinsic Safety must be performed EN 60079 14 NEC504 Even if an intrinsi cally safe circuit is connected just once to a non intrinsically safe circuit the
11. can choose the appropriate connection plate and install it in the system or machine without requiring any reduction fittlings Important have significant consequences in certain cases Cleaning and rinsing the pipes before operation Before you operate the flow meter you must carefully clean and rinse the entire system so that no foreign particles can get into the measuring unit of the flow meter when it is being installed Foreign particles can block the measuring unit and damage it so badly that the flow meter is unable to supply any valid measurement values any more and must be sent in for repair After completion of the system or installation of the piping you must carefully clean and rinse the entire piping system and the tank first The flow meter must be removed from the piping system to do this Use a rinsing agent that is compatible with the medium to be used later during operation and will not cause any undesired reactions You can obtain the correspon ding information from your supplier the manufacturer of the medium or from VSE Important When mounting the flow meter you must make absolutely sure that the seals are not damaged in any way and are seated correctly in the hydraulic connections of the flow meter Incorrectly installed or damaged seals can result in leakage and a leaky system which can The yellow plastic stoppers in the hydraulic connections of the flow meter protect the
12. generates a modulated digital current signal that is amplified and digitized by the isolated The dual pick up The dual pick up operates with two independent carrier frequency oscillators that are modulated whenever a tooth passes by The electronics generates a pulse signal for each modulation The pulses from both pick up systems are combined in the subsequent preamplifier electronics and output as a double pulse If necessary you can select pulse quadrup ling by changing the internal code resetting a jumper although the max VSE measurement When a dual pickup is used you simply double or quadruple the number of pulses received depending on the setting All versions must be operated in conjunction with an isolated switching amplifier switching amplifier The number of pulses is proportional to the volume delivered The flow rate can then be derived from the frequency of this pulse signal flow rate range is reduced because of this The output signal from the preamplifier is a current modulated pulse signal that is amplified and digitized by the isolated switching amplifier The volume of fluid trans ported and the flow rate can be derived from the number of pulses and the frequency Increasing flow rate Increase in the sensor frequency gt lt one measurement volume 1Vm one chamber volume one tooth one gap one movement of tooth 360 Figure 7 Signal output Isolated switching
13. measuring unit from dirt and contamination when the flow meter is placed in storage or for transportation purposes You must remove these stoppers so that the inlet and outlet are unplugged and open before you mount the flow meter Please clean the pipes and the tank thoroughly since foreign particles and residue in the pipes can get into the measuring unit and block it or even destroy it VSE measurement Flow meters are measuring sensors manufactured to high precision They have a mechanical measuring unit consisting of two gears and that are fit tightly with small gaps between them and the housing Even the least damage to the gears or bearings will cause a measurement error For this reason you must always make sure that no foreign particles can get into the measuring unit and that the medium being measured is always completely free from contamination Once the system has been thoroughly rinsed and there are no foreign par ticles in the piping system you can mount the flow meter and start opera tions Flow meters in environments subject to an explosion hazard The operation of flow meters in areas with a hazard of explosion is subject to very specific legal regulations For this reason only flow meters with certified Ex authorization are permitted to be used in areas subject to an explosion hazard To protect people from harm and equipment from damage lawmakers have issued national and international standards containing regu
14. switching amplifiers must guarantee the ia level DIN EN 50020 of intrinsic safety of the signal circuit and their limit values may not exceed the highest permitted input value of the flow meter When equipment is connected electrically a Verification of Intrinsic Safety must be performed EN 600079 14 FM 3600 Even if an in trinsically safe circuit is connected just once to a non intrinsically safe circuit then the piece of equipment is not authorized for use anymore as a device with intrinsically safe circuits This applies to the isolated switching amplifiers as well as the flow meters The relevant appli cable regulations apply to the installation of intrinsically safe circuits the mounting of external connectors and the properties and routing of lines and cables Cables and terminals with intrinsically safe circuits must be labeled accordingly and must be isolated from non intrin sically safe circuits or be equipped with the appropriate isolation EN 60079 14 FM 3600 The sum of the maximum effective capacitance C and inductivity L of the flow meter and the four pin connection cable may not exceed the maximum values C Ca and L La of the corresponding isolated switching amplifier Pay attention to the manufacturer s specifications for the connection cable and to the lengths of the cables used The permissible ambient and media temperatures in the correspon ding temperature class may not be exceeded at any ti
15. the flow meters in the VHM series The intrinsic safety 1 15 type of protection means that the energy in the circuit is so low that no sparks arcs or temperatures can be generated that could cause ignition When installing intrinsically safe circuits detailed regulations must be observed Strict requirements are placed on the isolation to prevent the voltage from creeping into the Ex range due to parasitic voltages For this reason intrinsically safe and non intrinsically safe circuits must always be routed separately It is not permitted to install both types together when routing bundling or harnessing cables The European standards basically divide equipment into two different explosion groups Flow meters belong to Group II Electrical equipment for hazardous areas Equipment in Group II are divided further into explosion subgroups and temperature classes gt e g acetone ammonia benzene pure methane propane gt IIB e g ethylene city gas lighting gas hydrogen sulfide gt IIC e g carbon disulfide acetylene hydrogen The American standards basically determinte in classes and devisions on the properties of the flammable substance and its likelihood that a flamma ble concentration is present The flow meters belong to the Class 1 Devi sion 1 The equipment is also identified for a specific gas or vapor with a grouping and temperature classes The flow meters are permitted for the Groups gt A e g
16. 0 34 mm R 0 053 O m L 0 76 pH m x CA A 60 pF m CA S 120 pF m x Measured at 1000 Hz 34 x x x BVS 05 ATEX E 121 FM ID 3026923 II 1G EEx ia IIC 16 14 IS CLI GRPS A B C D T4 T6 U 24 3 V 36 5 mA 110 mw Isolated Switching Amplifier Model MK13 P Ex0 24VDC K15 PTB O6 ATEX 2025 FM ID 3024645 II 1 G EEx ia IIC Hazardous Locations Div 2 GRPS A B C D IS Entity Locations U 9 9 V ATEX 9 6 V FM 22 mA ATEX CLI Div 1 GRPS A B C D 19 4 mA FM P 54 mW ATEX P 46 6 mW FM VSE measurement EC Type Examination Certificate 4 5 6 7 8 9 10 11 12 EXAM BBG Pr f und Zertifizier GmbH Translation EC Type Examination Certificate Directive 94 9 EC Equipment and protective systems intended for use in potentially explosive atmospheres BVS 05 ATEX E 121 Equipment Flow sensor type VHM V p S Ex Manufacturer VSE Volumentechnik GmbH Address 58809 Neuenrade Germany The design and construction of this equipment and any acceptable variation thereto are specified in the schedule to this type examination certificate The certification body of EXAM BBG Pr f und Zertifizier GmbH notified body no 0158 in accordance with Article 9 of the Directive 94 9 EC of the European Parliament and the Council of 23 March
17. 1994 certifies that this equipment has been found to comply with the Essential Health and Safety Requirements relating to the design and construction of equipment and protective systems intended for use in potentially explosive atmospheres given in Annex II to the Directive The examination and test results are recorded in the test and assessment report BVS PP 05 2088 EG The Essential Health and Safety Requirements are assured by compliance with EN 50014 1997 A1 A2 General requirements EN 50020 2002 Intrinsic safety i EN 50284 1999 Equipment Group II Category 1G If the sign X is placed after the certificate number it indicates that the equipment is subject to special conditions for safe use specified in the schedule to this certificate This EC Type Examination Certificate relates only to the design examination and tests of the specified equipment in accordance to Directive 94 9 EC Further requirements of the Directive apply to the manufacturing process and supply of this equipment These are not covered by this certificate The marking of the equipment shall include the following x II1G EEx ia IIC T6 EXAM BBG Pr f und Zertifizier GmbH Bochum dated 22 August 2005 Signed Dr Eickhoff Signed Dr Arnold Certification body Special services unit Page 1 of 3to BVS OSATEX E 121 This certificate may only be reproduced in its entirety and without change Dinnendahlstrasse 9 44809 Bochum Germany Phone 49 234 3696 105 F
18. 8 pin polycarbonate ABS Flammability class V O according to 0194 can clipped on the top hat rail DIN 50022 or clip on on mounting plate Height 89 mm Length 70 mm Width 18 mm Flat terminals with self lifting pressure plates lt 2x 2 5 mm or 2 1 5 mm with wire end ferrules IP 40 25 70 C 11 VSE measurement Control drawings Hazardous Classified Location Unclassified Location Class Division 1 Groups A B C amp D T4 T6 Note T4 T6 temperature code based on 50 C 122 F Flow Meter System Series ASSOCIATED APPARATUS VHM V L S Ex Isolator barrier MK13 P Ex0 24VDC K15 TURCK Isolator barrier MK13 P Ex0 24VDC K15 S Entity Parameters shown in table below Channel 1 Potential Equalization Power supply 24VDC The isolator barrier shall be installed in a tool secured enclosure in com Terminals Group Ccable pF Leable mH pliance with the mounting spacing and segregation requirements of the 1 2 A B IIC 3 3 82 ultimate application 1 2 C IIB 25 7 296 1 2 D IIA 209 7 700 1 The installation must be in accordance with the National Electrical Code 2 In order to suppress inductive interference a connecting cable with the NFPA 70 articles 504 and 505 and ANSI ISA RP12 06 01 shield bearing on the coupling nut of the four pole circular plug in connect or must be used during the installation of the flow meter In explos
19. ATEX95 and NEC NFPA7O Due to their fulfillment of the European standards EN 50014 EN 50020 and EN 50284 US standards FM3600 FM3610 and FM3810 These de vices fulfill the legal health and safety requirements and are certified by accredited certification agencies You will find an EC Type Examination Certificate on page 35 The label for EC conformity is the CE symbol which is placed on all flow meters The FM certificate of compliance is on page 39 Is the medium dirty or is there contamination and suspended particles in the medium What is the size of the particles of the solid material and could they block the meter Are the pipelines clean and free of scraps left over from the installation such as shavings or weld splatter Is the tank clean and can any foreign material escape from of the tank and into the pipeline system Is the type of medium changed often and is the system thoroughly rinsed after changing Has all air been completely bled from the pipes and the overall system Are the seals suitable for use with the medium to be measured compatible with the seals VSE measurement 2 Hydraulic properties of the system s the maximum operating pressure of the system smaller than the maximum permissible operating pressure of the flow meter s the maximum pressure drop Ap on the flow meter below the maximum permissible pressure drop s the pressure drop Ap excessively large on the flow meter when the maximum flow rate
20. Ex0 24VDC K15 Depends on the size of the flow meter Housing data for VIL S Ex VTL S Ex Dimensions 25 mm 119 mm Protection class 54 Material Stainless steel 1 4305 Weight 115g Max surface temperature TA T6 80 C 176 F Ambient temperature 20 C 50 C 4 F 122 F Seals FPM Coil casing 2K Epoxy Connector VSE Standard Connector M12 VSE measurement Type Plates VIL S Ex VTL S Ex Type VILx x S 1 x Ex Serial No XXX Year of Manufacture XX XX BVS 05 ATEX E 121 1116 EEx ia IIC T6 T4 T6 T4 20 C 80 C vi 24 3V C Tamb 20 C 50 C li 36 5mA Pi 110mW 0158 Ci 120nF VSE GmbH D 58809 Neuenrade Type VILx x S 1 x Ex Serial No xxx Mfg date xx xx IS CL1 Divi GRPSA B C D T4 T6 ENTITY Parameters Ui 24 3V li 36 5mA Pi 110mW Ci 120nF T4 T6 Q Ta 20 C 4 F to 50 C 122 F CTL DWD V06 6 084 APPROVED VSE GmbH 58809 Neuenrade Germany Signal pick up Flow meter Mounting plate for side mounting 25 VSE measurement Technical data for single pick ups VEL S Ex VHM Single pick up Block diagram Pin Nr 1 line color brown Power supply U Connection for potential equalisation Dimensions 68mm Height 33 mm 22 5 mm Pin Nr 3 line color blue Power supply OV Pin confi
21. S jurisdictions Any FM approved intrinsicolly sofe opporotus with Entity Concept porometers or ony simple opporotus e For Conodion jurisdictions Any Conodion certified intrinsicolly sofe opporotus with Entity Concept porometers or ony simple opporotus The Entity concept ollows interconnection of intrinsicolly sofe opporolus ond ossocioledbpporotus not specifically examined in such combination os o system when the conditions above ore met Vmax 2 Vt Imax 2 Iscor It Ui 2 Uo 1210 P2R Ci Co Lit cable Lo Ci Ccadie Co Lit Lcoble lt Lo A simple apporotus is defined os on electrical component or combination of components of simple construction with well defined electrical parameters that does not generate more thon 1 5V 100mA ond 25mW or o passive component thot does not dissipote more than 1 3W and is compotoble with the intrinsic sofety of the circuit in which it is used 2 When the field device is o contact closure the connection should be mode os shown below for proper performance RI 1 5 With line monitoring enobled Re vim E With line monitoring disobled 4 3 Wiring methods must be in occordonce with For US jurisdictions the National Electrical Code ANSI NFPA 70 Article 504 for Division 1 or 2 installations or Article 505 for Zone 0 1 or 2 opplications ond ANSI ISA RP12 06 01 For Conodion jurisdictions the Conodion Electrical Code CSA 22 1 for Division 1 or 2 or Zone 1 or 2 instol
22. VSE measurement OPERATING INSTRUCTIONS FOR Flow Meters of the series Ex Type VHM APPROVED VSE Volumentechnik GmbH H nnestra e 49 58809 Neuenrade Germany Phone 49 0 2394 61630 Fax 49 0 23 94 616 33 E Mail info vse flow com Internet www vse flow com Table of Contets Page Important basic information cissssssssses e 3 Functional description of the flow meter in areas subject to explosion hazards 4 Flow Meter Selection iu be UE E 4 Declaration of en es 4 General requirements for operation iiis 4 Maximum operating pressure isses 5 Statement to EU Directive 97 23 EG Pressurized Devices 5 Flow rate measurement range 6 s e 6 installing the flow meier 24 25 ds 6 Cleaning and rinsing the pipes before 7 Flow meters in environments subject to an explosion hazard 7 General information on using devices with intrinsically safe 9 VSEVHM Ex type flow meters isse ree en es san bebe De bad 9 Isolated switching amplifier MK 13 24 15 9 Technical data for the isolated switching amplifier MK 13 P Ex0 24VDC KI15 11 Control DP 12 Installation of VSE flow meters in hazardous areas
23. Volumentechnik GmbH for safe operation in potentially explosive areas is void VSE Volumen technik GmbH is not liable in any way for personal injuries or damage to goods resulting from improper installation or improper operation of the flow meter Operating manual No E060054 Datum 20 09 2007 VSE measurement Functional description of the flow meter in areas subject to explosion hazards Flow meters from VSE Volumentechnik GmbH measure the volumetric flow of fluids using the gear method The two gears in the meter are set in motion by the fluid flowing through the flow meter The motion of each tooth of the gear is measured by a single or dual signal pick up that is securely mounted to the flow meter When the gear rotates each signal pick up generates a digital output signal when a tooth of the gear passes through the detection area Each time a tooth passes the single signal pick up outputs one signal or in case of a dual pick up 2 or 4 electrical output pulses depending on the jumper settings The gap between the teeth and the housing encloses a volume of fluid that is transported out when the gear rotates This volume of fluid displaced by one gap tooth mesh is called the measurement volume V This measurement volume V determines the value of the pulse depending on the size of the flow meter I Imp 1 K factor Flow Meter Selection The right choice rating of the type and size of the flow meter
24. ahr MM JJ Type code signal pick up for VHM Titan IS CL1 Divi GRPS A B C D T4 T6 ENTITY Parameters Ui 24 3V Ri 0 Li 0 T4 T6 Q Ta 20 C 4 F to 50 C 122 F CTL DWD V06 6 08 4 li 36 5mA 110mW 120nF VSE 58809 Neuenrade Germany VRLx x S 1x Ex Serial No xxx Mfg date APPROVED Flow Meter Version Series Cable entry Size Sensor grounding Connection 32 Signal pick up Ww Zee dez Standard Intrinsically safe Threaded cable connection Plug connector with VSE standard connector standard Flow Meter O1 Flow Meter 02 not grounded V grounded to V optional 4 conductor connection with U I limiter 2 conductor connection without U I limiter Single channel pick up with modified carrier frequency Single channel pick up with normal carrier frequency VSE measurement Wiring diagram with isolated switching amplifier Explosion hazardous area Safe area Isolation switching amplifier E MK13 ExO 24VDC f brown ME 8 2 Volt I J o ji i i x 3 blue 2 un 2 7 VSP 20 500 VSP 11 VHM two channel pick u L P Input circuit monitoring ol 10 30 VDC Media and Ambient temperatures Temperature clas
25. amplifier output signal with operation of a single pick up Isolated switching amplifier output signal with operation of a dual pick up double pulse gt 17 VSE measurement Application with directional detection If it is necessary to detect the direction of flow then the flow meters operated with two single pick ups of type VIL S EX and VTL S EX The two single pick ups are set up with a mechanical phase offset of 90 with respect to the tooth flank sequence To prevent the signals of the two single pick ups from interfering with each other you should select pick ups with two different carrier frequencies i e one with a normal carrier frequency VIL S EX and one with a modified carrier frequency VTL S Single pick up VTL S Ex Figure 8 Flow meter with directional detection l lt Hazardous area Normal atmosphere D DIN Reil 1 Channel Be Preamplifier Typo vu Shied beoring on coupling nut of plug Shied bearing on coupling nut of plug VSE flow meter from the VHM series operated two single pickups Figure 9 Application with directional detection 18 Each of the pick ups is operated with a isolated switching amplifier You then obtain two pulse signals with a phase offset of 90 This permits the increasing of the resolution when you process the rising and falling edges from both channels Processing the signals in this mann
26. at high viscosities for example is reached s the present flow rate within the flow rate range of the flow meter depending on the viscosity Note that the flow rate range is reduced at high viscosities s the maximum temperature of the medium within the temperature range of the flow meter s the pipe cross section large enough and are there any large pressure drops in the system Are the hydraulic connections supply and return correctly connected and sealed Does the pump have enough power to operate the system 45454545444 blocked flow meter can stop the flow throughout the system Is there an overpressure valve bypass present in the system 3 Electronic processing and electrical safety gt Have you selected the best possible flow meter and is it equipped with the proper preamplifier gt Does the power supply voltage applied match the voltage required by the flow meter gt s the supply voltage provided by the power supply or signal processor sufficiently filtered gt Does the power supply output the required amount of power gt Was the electrical connection wired according to the connection diagram provided s the cable shielding connected to the ground conductor gt s there an equalizing conductor connecting the flow meter to the signal processor to eliminate any voltage differences between them gt s the flow meter securely connected to the grounded PE conductor gt s the measuring unit of th
27. ax 49 234 3696 110 35 VSE measurement BBG Pr f und Zertifizier GmbH 13 Appendix to 14 EC Type Examination Certificate BVS 05 ATEX E 121 15 15 1 Subject and type Flow sensor type VHM V S Ex Instead of the in the complete denomination letters and numerals will be inserted which characterize variations 15 2 Description The flow sensor is used for measurement of flow resp mass flow and volume resp mass in liquids The electrical components of the sensor are mounted inside an titan enclosure VHM VRL S Ex or a stainless steel enclosure type VHM VEL S Ex VHM VDL S Ex VHM VIL S Ex and VHM VTL S Ex The electrical connection is done by a connector 15 3 Parameters 15 3 1 Type VHM VEL S Ex and Typ VHM VDL S Ex Voltage Ui DC 18 7 V Current li 365 mA Power Pi 110 mW Effective internal capacitance Ci 0 27 Effective internal inductance Li negligible 42 VHM VIL S Ex Typ VHM VTL S Ex und Typ VHM VRL S Ex Voltage Ui DC 243 V Current li 365 mA Power Pi 110 mW Effective internal capacitance Ci 0 12 pF Effective internal inductance Li negligible 4 3 Ambient temperature range Ta 20 C up to 50 C 4 4 Medium temperature 0 up to 85 C 16 Test and assessment report BVS PP 05 2088 EG as of 22 08 2005 17 Special conditions for safe use
28. chnik GmbH will only be performed when the safety data sheet of the medium used is enclosed and the flow meters have been completely cleaned and rinsed This serves to protect our employees and makes our job easier When these instructions are not followed the package will be returned at the sender s expense Technical data for the VHM flow meter Size Measurement Range Measured Volume Frequency K factor l min ml Hz Imp Liter VHM 01 1 0 01 1 ca 0 035 ca 5 0 476 0 ca 30 000 VHM 01 2 0 01 1 ca 0 045 ca 5 0 370 0 ca 22 000 VHM 02 1 0 05 2 ca 0 120 ca 6 9 278 0 ca 8 800 VHM 02 2 0 10 4 ca 0 225 ca 7 4 296 0 ca 4 400 VHM 02 3 0 40 8 ca 0 450 ca 14 8 296 0 ca 2 200 VHM 03 2 0 50 20 ca 1 010 ca 8 25 330 0 ca 1 000 The exact data can be found in the calibration report 21 VSE measurement Measurement accuracy Repeating accuracy 0 5 of the measured value at viscosities gt 10mm s 1 of the measured value at viscosities 1 10mm s 0 5 under the same operating conditions Materials Gear bearings Seals Max operating pressure Medium temperature Ex type Gear housing stainless steel 1 4404 Gears stainless steel 1 4462 Gear bearings tungsten carbide Preamplifier housing stainless steel 1 4305 or aluminum Sleeve bushing ball bearings optional PTFE with FPM core standard or PTFE 250 bar 3600 psi 20 C
29. e Increased tolerance Measuring range Technical Data Technical Data Technical Data Size VHM 01 VHM 02 VHM 03 AHM mounting plate Series modification code Version Standard Special version Connection A G 1 8 thread 1 4 63 8 D 61 2 F 1 8 NPT G 1 4 NPT H 3 8 NPT 1 2 NPT Connection S position side U Side connection Below connection Material 2 v2A 4 v4a Size 01 02 VHM 02 03 24 Technical data for single pick ups VIL S Ex VTL S Ex VIL S Ex VIL S Ex VHM Single pickup Connection for potential equalisation Block diagram Dimensions 25mm length 119 mm Pin Nr 1 N C line color broun Power supply U Pin Nr 3 line color blue N C Power supply OV i Pin configuration Electronic Connection data for VIL S Ex VTL S Ex EC Type Examination Certificate BVS 05 ATEX E 121 FM ID 3026923 Type Code VIL S Ex VTL S Ex Certification II 1G EEx ia IIC T6 4 IS Div 1 GRPS A B C D TA T Nominal voltage 8 10V Switching currents Vow lt 2 7 mA gt 3 7 mA Signal frequency 5 Hz ca 1000 Hz Max input voltage U lt 24 3 V Max input current lt 36 5 mA Max power consumption S 110 mw Internal resistance R lt O Internal capacitance C lt 120 nF Additional equipment isolated switching amplifier MK13 P
30. e division into zones In Europe the zone definitions can be found in EN 1127 1 in the section on Fundamentals and Methods for explosion protection Further information on zoning is provided in EN 60079 10 and the collection of examples in the explosion protection rules Ex RL For U S the NEC NFPA7O NEC500 and NEC505 supplies to the divisions Technical inspectors from professional societies can also be contacted for help The customer can also always contract explosion protection experts from an association for technical inspection to define the zones In any case you must obtain approval from the board of industrial and trade supervisors VSE measurement The operation of electrical equipment and systems in hazardous areas is subject to very specific legal regulations For this reason only flow meters with the corresponding Ex certification and Ex identification plates in connection with special certified safety equipment are permitted to be used in any areas subject to an explosion hazard The Ex type flow meters from VSE GmbH are designed to have the intrinsic safety type of protection and are operated with isolated switching amplifiers The amplifiers must guarantee the intrinsic safety of the signal circuit according to specific criteria and parameters and their limit values may not exceed the highest permitted input value of the device A single channel isolated switching amplifier is required to operate the Ex version of
31. e flow meter isolated from the grounded PE conductor e g connected using a sleeve If it is isolated then the measuring unit must be connected to the grounded PE conductor gt s the cable routed to prevent interference and can any stray pulses be coupled gt s the 4 pin round plug of the connecting cable screwed tightly to the connector on the flow meter gt wires on the signal processor connected correctly and properly gt Does the overall system conform to the electromagnetic compatibility EMC directives as required by law gt Are you following all locally applicable regulations applicable rules guidelines and basic requirements for EMC gt wires on the signal processor and the isolated switching amplifiers connected correctly gt the legal regulations and guidelines for explosion protection followed during the installation of the flow meters and other components in the system Systems in which a malfunction or failure can lead to personal injury are to be equipped with suitable safety equipment The function of this safety equipment is to be checked at regular intervals Maximum operating pressure Before installing the flow meter you must make sure that the maximum operating pressure of the system does not exceed the maximum permissible operating pressure of the flow meter Also note the peak pressures can arise when operating the system Important The maximum operating pr
32. er allows for a resolution of 4 of the measured volume _ Single pick up VIL S Ex Flow meter Mounting plate for side mounting Power Supply PE ground Signal 1 Channel averted Signal 1 Chonnal Ub 10 _30V GND OV PE Signal 2 Channel inverted Signal 2 Channel Ub 10 30V Isolation switching amplifier MK 13 P ExO 24VDC K15 0V power supply PEPE Earth conducter General signal processor VSE measurement st Is Direction of flow Ee lt C t een 2nd Direction of flow eel e Decreasing flow rate decrease in the sensor frequency I gt Increasing flow rate increase in the sensor frequency gt Ist direction of flow from A to _ gt 2nd direction of flow from B to A Channel 1 u Channel 2 Frequency A 4 one volume measurement approx 5 2 approx SHz 1v one chamber volume one tooth one gap one movement of tooth 360 Q 0 ml min Change in the direction of flow Figure 10 Signal output with two single pick ups Ex type Important Persons assigned or contracted to install commission and operate the devices must have appropriate qualifications above and beyond those required for their normal tasks In particular they must have knowledge of explosion protection Custom solutions There a
33. eshold Output circuit Voltage drop Switching current per output Switching frequency Ex certified according to Conformity certificate Maximum values No load voltage U Short circuit current Power P Werner Turck GmbH amp Co KG MK13 P Ex0 24VDC K15 10 30V DC lt 10 approx 20 mA Input circuit to output circuit and supply voltage for 250 V Test voltage 2 5k V 8 2 V 16 4 mA 5000 2 9 3 5 mA 0 2 mA 0 16 mA 12 4 Two transistor outputs short circuit proof positive switching lt 2 5V lt 100 mA lt 3 kHz PTB 06 ATEX 2025 FM ID 3026923 lt 9 9 V lt 9 6 V lt 22 mA lt 19 4 mA 54 mW 46 6 mW External inductances capacitances and inductances L C EExia IIB EExia IIC Group A B IIC Group C IIB Group D IIA Temperature range Ty Device label LED indicators Switching state error message Ready for operation Terminal box Dimensions Connection Connection cross section Type of protection IEC 60529 EN60529 Operating temperature range 2 10 20mH 5 3 5 3 pF ATEX 1 5 10mH 1 1 0 75 0 65 pF ATEX 82 mH 3 6 pF FM 296 mH 26 pF FM 700 mH 210 pF FM 25 70 C Il 1 GD EExia IIC ATEX ASSOCIATED EQUIPMENT Suitable for CL1 Div 2 GRPS A B C D hazardous locations with IS entity connections to CL 1 Div 1 GRPS A B C D yellow red two color LED green
34. essure for flow meters in the VHM series is 250 bar 3600 psi and for the VHM Titan series it is 10 bar 145 psi Statement to EU Directive 97 23 EG Pressurized Devices VSE flow meters are pressurized devices according to article 1 paragraph 2 1 4 of above mentioned directive Therefore they are subject to the re gulations to this directive According to article 3 paragraph 1 4 VSE flow meters have to conform with the technical requirements of the guideline The fluids to be measured are belonging in most of all cases to the class 2 defined in article 9 para graph 2 2 VSE flow meter do not reach the limit values as defined in article 3 paragraph 1 1 The technical requirements for VSE flow meters therefore are limited to the parts indicated in article 3 paragraph 3 It means the devices have to be designed and manufactured in conformity with acknowledged engi neering such as practiced in one of the member states This is herewith confirmed Beside this the paragraph declares that these devices must not have a CE marking according to Directive 97 23 EG Therefore we do not issue de clarations of CE and our products are not labelled acc to 97 23 EG VSE measurement Flow rate measurement range The flow rate measurement range Q_ Q of the flow meter measuring accuracy of up to 0 5 of the measured value and a re specified in the data sheet is based on a test medium consisting of peat accuracy of 0 5
35. formed by trained and qualified personnel with knowledge of the relevant national regulations relating to explo sion protection These operating instructions must be read and followed carefully to ensure proper trouble free and safe operation of the flow meter VSE is not liable for any damage incurred resulting from not complying with the instructions in this operating instruction It is not permitted in any case to open the device These operating instructions for flow meters in the series VHM in Ex Version from VSE must be stored so that they can be read at any time by the group of authorized personnel Chapters may not be taken out of these instructions at any time A missing operating instructions manual or missing pages in operating instructions must be replaced immediately VSE can supply you with new operating instructions or you can download the operating instructions from the Internet www vse flow com The operating instructions must be given to each subsequent user of this product Legal Information This document is not managed by an updating service of VSE Volumentechnik GmbH Changes to this document may be made without notice VSE Volumentechnik GmbH does not provide any implicit guarantees of commercial qualities and suitability for a specific purpose Ifthe device has been opened modified or incorrectly connected to the electrical circuits the explosion protection warranty is void and therefore the guarantee of VSE
36. g aluminum housing Stainless Steel Options not affecting safety any single digit letter or number referring to non electrical properties as product associates language delivery packing documentation etc Type VHM VaL S Ex Flow Sensors IS VI ABCD T6 T4 Ta 20 C lt Ta lt 50 4 F lt lt 122 F Entity Tms 20 C to 80 C 4 F to 176 F Entity Parameters U 24 3 V 1 36 5 mA P 110 mW 0 12 pF L 0 mH a Housing I Volume Sensor 303 Stainless Steel 1 4305 preamplifier housing Stainless Steel T Volume Sensor 303 Stainless Steel 1 4305 preamplifier housing Stainless Steel R Volume Sensor Titanium preamplifier housing Aluminum Coil housing Stainless Steel Options not affecting safety any single digit letter or number referring to non clectrical properties as product associates language delivery packing documentation etc Page 1 of 3 Equipment Ratings VSE measurement FM Approvals Intrinsically Safe with Entity Parameters for Class Division 1 Groups A B C amp D hazardous classified locations FM Approved for VSE Volumentechnik GmbH H nnestrasse 47 58809 Nevenrade Germany 3026923 Page 2 013 FM Approvals This certifies that the equipment described has been found to comply with the following Approval Standards and other documents Class 3600 Class 3610 Class 3810 Ori
37. ginal Project ID 3026923 Report Number Date FM Approvals LLC 1998 1999 2005 Approval Granted A Subsequent Revision Reports Date Approval Amended Report Number 2 c Assistant Vice President 16 3026923 Page 3 of 3 Date 39 VSE measurement VSE Volumentechnik GmbH H nnestra e 49 58809 Neuenrade Germany Phone 49 0 2394 61630 Fax 49 0 2394 61633 E Mail info vse flow com Internet www vse flow com 07 08 www plakart de
38. guration Electronic connection data for VEL S Ex EC Type Examination Certificate Type Code Certification Nominal voltage Switching currents Signal frequency Max input voltage Max input current Max power consumption Internal resistance Internal inductance Internal capacitance Additional equipment Housing Data VEL S Ex Dimensions Protection class Material Weight Max surface temperature Ambient temperature Seals Coil casing Connector 26 BVS 05 ATEX E 121 FM ID 3026923 VEL S Ex 1G EEx ia IIC T6 T4 IS Div1 GRPS A B C D TA T6 8 10V u lt 2 7 mA gt 3 7 5 Hz 500 Hz U lt 18 7 V lt 36 5 mA P lt 110 mW R lt O L lt O C lt 270 nF isolated switching amplifier MK13 P Ex0 24VDC K15 68 mm h 33 mm IP 54 Anodized blue aluminum Stainless steel 1 4305 coil 1659 TA T6 80 C 176 F 20 C 50 C 4 F 122 F FPM 2K Epoxy VSE Standard Connector M12 Type Plates VEL S Ex VSF D 58809 Neuenrade Type VELx x 1 x Ex Serial No XXX Baujahr XX XX BVS 05 ATEX E 121 Il 1G EEx ia T6 T4 Uie 187 l 36 5mA Pi 110mW Ri 0 Liz0 Ci 270nF e Chem VSE 58809 Neuenrade Germany Type VELx x S 1 x Ex Serial No XXX Mfg date XX XX IS CL1 Div1 GRPS A B C D T4 T6 ENTITY Parameters Ui 187V N 36 5mA Pi 110mW Ri 0 liso
39. ing data for VDL S Ex Type Plate for 1 5 27 Type codes signal pickups 28 Technical data for VAM Titan e 29 Dimensions for VHM Titan 2 0 00 cece 29 Type eodefor VHM Titan be oot eat PER een a 30 Technical data for single pick ups VRL S Ex VWL S Ex for VHM Titan 31 Electronic connection data for VRL S Ex VWL S Ex for VHM Titan 31 Housing data for VRL S Ex VWL S Ex for VHM Titan Type Plate for VRL S Ex VWL S Ex for VHM 32 Type code signal pick up for VHM Titan isses 32 Wiring diagram with isolated switching amplifier 33 Media and ambient temperatures e 33 Flow meter labels and certifications 0 0 0 cece cee cee 33 Summary of the safety related technical data 2 0 02 e cece eee eee eee 34 EC Type Examination Certificate sss 35 FM Certificate of Compliant es rrer reerd pasga p e oE 39 VSE measurement Important basic information Dear customer dear user These installation and operating instructions should provide you with the information you need to properly install and commission the flow meter in potentially explosive hazardous areas according to the regulations The installation commissioning and testing are only to be per
40. ion prone areas the flow meter is connected to the ground poten tial The greatest care must be taken to ensure that between each end of the electrical circuit i e between the explosive area and the non explo sive area potential equalization exists Drawing No V 06 6 14 4a VSE measurement Hazardous Classified Location Unclassified Location Class I Division 1 Groups A B C amp D T4 16 Note T4 T6 temperature code based on 50 C 122 F ASSOCIATED APPARATUS WITH ENTITY PARAMETERS Flow Meter System Series VHM V L S Ex Vi orU 18 5 s or 24 mA max 0 Va SV alor U l or lt S laa 971 P lt CorC SCH Cou L or L LL cable Channel 1 Potential Equalization 1 The installation must be in accordance with the National Electrical Code 3 In order to suppress inductive interference a connecting cable with the NFPA 70 articles 504 and 505 and ANSI ISA RP12 06 01 shield bearing on the coupling nut of the four pole circular plug in connect or must be used during the installation of the flow meter In 2 The flow meter systems Serie VHM V L S Ex is suitable explosion prone areas the flow meter is connected to the ground potential for use in Class Division 1 and Zone O AEx ia applications If con The greatest care must be taken to ensure that between each end of the nected to Associated Apparatus
41. ional non return valve in the outlet line Figure 1 Flow meter with backpressure Important Make sure that both the inlet and outlet of the measuring unit of the flow meter is always completely full and that there is some pressure on the outlet This prevents the creation of gas bubbles and the destruction of the measuring unit when the flow rate suddenly increases rapidly and it improves the measurement accuracy at the same time Series VHM flow meters can be mounted with screws on a mounting Block mounting plate installed in the pipe Whenever possible you should choose large The flow meter is mounted on a connection plate The connection plate diameter pipes for the piping system and large diameter lines for the is installed in the pipe and is equipped with all hydraulic connections hydraulic supply and return This reduces the effect of a pressure drop and and mounting holes required for mounting the flow meter lowers the flow rate in the overall system VSE supplies connection plates with various pipe thread sizes and with flow meter is screwed onto the connection plate using pan head screws mounting holes on the side or back for all flow meters in the VHM series Tighten the screws by hand as tight as they will go first In special cases the Depending on the present conditions the pipe installed the diameter of flow meter can also be mounted directly in the pipe the pipe or the type of pipe thread the user
42. is recommended to connect the shield to a ground connection at the other end of the connection cable i e in the non hazardous area Important The wiring diagram in figure 5 shows the processed signal from the flow meter With this measuring system you can measure the flow rate And the volume but it is not possible to detect the direction of flow when connected in this manner lt gt Hazardous area Flow meter Figure 5 Wiring diagram for the measuring system Mounting and installation must always be performed according to the locally applicable regulations and the owner of the measuring unit is responsible for abiding by these regulations All installations are to be performed to ensure EM compatibility You must make sure that no voltage differences can arise between the pieces of equipment and must install potential equalization Isolation switching amplifier You must always make sure that the grounded conductor is correctly connected with the flow meter and that no voltage differences can arise between the grounded conductor PE connections flow meter isolated switching amplifier electronic signal processor To accomplish this always install an extra wire connection about 4 6 mm between each of the pieces of equipment see the PE arrows in the following figures or connect every single PE connection point in a star configuration to a specific location on the gr
43. is the deciding factor for the trouble free and safe operation Due to the wide variety of applications and flow meter versions the technical data provided in the VSE catalogs are of a general nature Certain Declaration of Conformity series flow meters for areas subject to an explosion hazard have been tested for their electromagnetic compatibility and noise emission according to the EMC regulations and meet the requirements of the applicable legally required EMC directives They cannot be operated independently They must be connected to a power source via a cable and they output digital signals for electronic processing There is a decla ration of conformity available for all flow meters It can be obtained upon request Since the EM compatibility of the overall measurement system also depends on how the cables are routed on proper connection of the shielding and on every device connected to the system it must be ensured that all components meet the requirements in the EMC guidelines and that the electromagnetic compatibility of the entire system machine or plant is guaranteed General requirements for operation Before installation or operation you must check the following properties of your system and take the following aspects of the corresponding conditions in your system into account for trouble free and safe operation of the system 1 The medium to be processed Is the flow meter suitable for the medium I
44. itching output signal PNP signal and the inverted positively 10 Low Signal lt 2 7 mA High Signal gt 3 7 mA switching output signal PNP signal Normally the signal processor only needs the standard signal generated see figure 3 and figure 4 the inverted signal is only processed in special cases That is why the inverted signal is only shown in the circuit diagram as a dotted line One volume measurement 1V Figure 4 Signal output of the isolated switching amplifier Note Note that the signal output of the isolated switching amplifier is a PNP signal low signal open output high signal Ub Problems may arise when the signal processor has high impedance inputs especially in the higher range of flow rates The signal edges become rounded and the signal processor cannot detect the digital signal any more In this case insert a pull down resistor with a resistance of approx 2 2 4 7 parallel to the input of the signal processor see figure 3 Resistor R VSE measurement Signal Inverted Signal Technical data for the isolated switching amplifier MK 13 P Ex0 24VDC K15 Manufacturer Type designation Operating voltage Residual ripple WSS Current consumption Galvanic isolation Input circuit Operating values No load voltage U No load current Internal resistance R Switch points Open circuit threshold Short circuit thr
45. la tions that must be followed when using electrical components and systems in explosive atmospheres In Europe CENELEC the European Committee for Electrotechnical Standardization issues harmonized regulations relating to explosion protection for electrical equipment In the U S the re gulations are issued by the ANSI American National Standard Institute A hazard of explosion can arise when handling flammable meaning oxidizable substances when these substances are present as gases e g methane propane vapors mist or dust their concentration in a mixture with air is within a certain range and the quantity of the mixture flammable substance oxygen has reached a hazardous level An explosion would then occur if a suitable source of ignition is present An explosion often causes very high temperatures and high rates of pressure They can injure people and damage buildings or destroy parts of the sy stem or even ignite other flammable substances All electrical equipment installed and operated in an explosive atmosphere require approval for the corresponding zones and must be equipped with a special identification plate Areas subject to an explosion hazard are divided into zones The basis for classifying the zones is the probable frequency of occurrence and duration of the explosive atmosphere The division of the areas into zones is done by the company itself which means the customer as an operator is responsible for th
46. lotions Associated opporotus must not be connected to device thot uses or generates in excess of 250Vrms unless it hos been determined thot the volloge is odequotely isolated from the ossocioled opporolus 5 If the electrical porometers of the coble ore unknown the following volues be used Copocitonce 60pF foot Inductonce 0 2uH foot Drawing No TURCI IS 1 110 3000 Campus Drive Plymouth MN 55441 Phone 763 553 7300 Title Control Drawing for MK13 R MK13 P MK13 N MK13 PN MKI3 PF and UE pm s Toms MK13 NF with 1 5 Entity Field Circuits Rev Description Drft Date Scale NONE Sheet 1 of 1 14 VSE measurement Installation of VSE flow meters in hazardous areas The following figures show the wiring diagrams for flow meters in the series for use in areas subject to an explosion hazard Connect each piece of equipment as shown in the diagram Isolated switching am plifiers also contain non intrinsically safe circuits and may not be installed in hazardous areas The non intrinsically safe circuits are to be installed according to IEC 60364 4 4 In hazardous areas the flow meters are to be connected to a grounding system grounded according to the applicable regulations VSE supplies connection cables for EMC safe operation in which the shield is seated on the union nut of the four pin circular connector It is not necessary for EMC safe operation but it
47. low meter so that no foreign particles or substances can get into the measuring unit and damage the flow meter The VSE flow meters are not authorized for use in areas subject to a dust explosion hazard To suppress inductive interference you must use the connection cable in which the shield is seated on the union nut of the four pin circular connector when installing the flow meter In hazardous areas the flow meter is connected to a ground potential You must be extremely certain that there is a equalization of potential between each end of the circuit i e between the hazardous and non hazardous areas The potential equalization of the ground conductor PE must be present throughout the entire area The owner must maintain the system in proper operating condition operate the system properly monitor it constantly perform the necessary maintenance and any related work immediately and follow the relevant safety regulations when doing so This procedure known as continuous monitoring will eventually be adopted as a new law in Europe VSE supplies special flow meters from the VHM series when the flow meter is to be operated in a hazardous area These flow meters are authorized for use in hazardous areas and must always be operated in conjunction with isolated switching amplifiers that guarantee intrinsic safety and are Ex certified They are marked in blue and offer the safety level required for explosion protection The isolated
48. me when operating the flow meter When operating or performing maintenance or repairs on the flow meter the surface of the flow meter housing must be safely protected from impact or sharp edges tools or other items The preamplifier housing is made of die cast aluminum The genera tion of impacts and friction especially between aluminum and steel must be prevented so that the production of sparks is ruled out When using the flow meters Ex type VHM in hazardous areas requiring category 1 equipment the sensor is to be installed so that sparks from impact or friction can be ruled out You may not change or extend the devices in any way if the modifications were not expressly permitted by the manufacturer If the preamplifier housing is opened then the explosion protection certification becomes invalid VSE measurement Maintenance and repairs VSE flow meters are basically maintenance free However it is recommended to send the flow meters back to the factory at regular intervals for inspection particularly in difficult applications when critical media are used e g when using abrasive contaminating media or media containing fillers or pigments when high viscosity media are used or when very heavy strain is placed on the measuring unit e g when the flow changes often and quickly In this manner any minor damage can be detected and eliminated early before the damage leads to total failure during production
49. mm IP 54 Anodized blue aluminum Stainless steel 1 4305 coil 1659 TA T6 80 C 176 F 20 C 50 C 4 F 122 F FPM 2K Epoxy VSE Standard Connector M12 Block diagram N C Pin Nr 3 line color blue Power supply OV VSP 11 avc a ca Pin Nr 1 line color brown Power supply U N C Pin Assignments Serial No XXX Year of Manufacture XX XX 1 1G EEx ia IIC T6 T4 Ui 187V 36 5mA Pi 110mW Ri 0 u 0 Ci 270nF Serial No XXX Mfg date XX XX IS CL1 Divi GRPS A B C D 74 76 Type Plates VDL S Ex VSFE D 58809 Neuenrade Type VELx x 1 x Ex BVS 05 ATEX E 121 T6 T4 20 C 80 C Tamb 20 C_ 50 C VSF 58809 Neuenrade Germany Type VELXx x S 1 x Ex ENTITY Parameters Ui 18 7V H 36 5mA Pi 110mW Ri 0 Li 0 Ci 270nF TA T6 Ta 20 C 4 F to 50 C 122 F CTL DWD V06 6 08 4 27 VSE measurement Type codes signal pick ups Version Standard Single pick up Intrinsically safe 12 1 Series Cable entry S Cable ent Plug connector with VSE standard connector 104 Flow meter VHM 02 Flow meter VHM 03 Sensor grounding u Not grounded to OV Connection 4 conductor connection Standard 2 conductor connection Intrinsically safe Two channel pick up Signal pick up To Two channel pick up impul
50. n the piece of equipment is not authorized for use anymore as a device with intrinsically safe circuits This applies to the isolated switching amplifiers as well as the flow meters The relevant applicable regulations apply to the installation of intrinsically safe circuits the mounting of external connectors and the properties and routing of lines and cables Cables and terminals with intrinsically safe circuits must be labeled accordingly and must be safely isolated from non intrinsically safe circuits Important For the owner operator the most important guidelines for the setup installation operation testing and maintenance of the system in a hazardous area are among others the guidelines ATEX 95 ATEX 137 and VSE VHM Ex type flow meters The VSE flow meters in the Extype VHM series from VSE are authorized for use in hazardous areas and are always operated together with an isolated switching amplifier They provide the required explosion protection safety On the type plate you will find the specifications labels The installation and connection of the isolated switching amplifier and the flow meter are only to be performed by trained and qualified personnel authorized personnel with knowledge of the relevant national regulations relating to explosion protection The prescribed distance between the intrinsically safe connections of the isolated switching amplifier and the grounded components and connec tio
51. ns of other devices must be maintained If not specified expressly in the manual for the specific device the opening of the device for repairs or modifications to the device not performed by qualified experts or the ma nufacturer will result in the invalidation of the Ex authorization Visible changes to the device housing of the isolated switching amplifier e g black or brown discoloration due to heat or any holes and dents indicate a serious error and the device should be switched off immediately in this case In addition the connected flow meter must be inspected Note that the inspection of the device in terms of its explosion protection properties can only be performed by a qualified expert or the manvfacturer Operation of the isolated switching amplifier is only permitted within the authorized limits printed on the housing You must make sure that the applicable regulations guidelines directives and general conditions for operation are observed every time before operating the device or changing its connections the conditions for appropriate operation are met and the safety regulations are met the European standards EN 1127 1 EN 60079 10 EN 60079 14 and EN 60079 17 and the American standards NEC NFPA7O articles 504 505 and ANSI ISA RP12 06 01 These guidelines must be followed and safety related and electrical data required according to DIN EN 50014 and FM3600 see page 33 Flow meter labels and certifications VSE sup
52. ounded conductor PE There is a terminal for this on the measuring unit housing A conductor with a minimum diameter of 4 mm can be connected here normal atmosphere Evaluation unit signal pu n inv signal Ub GND OV 15 VSE To signal Ub Power supply processor Pulse signal PNP switched Grounded conductor PE ur 5 6 TURCK Or D X PE Normal Atmosphere arowa Shield Hazardous Area VS Eson D 58809 Neuenrade Type VHM V L S Ex S Nr Baujahr PE BVS 05 ATEX E121 Exl11G EExiallCT6 A 187V Figure 6 Connecting the flow meter and isolated switching amplifier Important Persons assigned or contracted to install commission and operate the devices must have appropriate qualifications above and beyond those required for their normal tasks In particular they must have knowledge of explosion protection 16 Preamplifier General information The preamplifiers are supplied in different versions depending on the type of application There are single and dual pick ups available The basic method used to sense and measure though is the same for both versions and is based on the carrier frequency principle The single pick up The single pick up operates with a carrier frequency oscillator that is modulated whenever a tooth passes by This modulation is evaluated by the subsequent preamplifier electronics and
53. plies the flow meters with isolated switching amplifier model MK 13 P Ex0 24VDC K15 Isolated switching amplifier MK 13 P Ex0 24VDC K15 The isolated switching amplifier MK 13 P Ex0 24VDC K15 allows binary switching states to be transmitted while electrically isolated It has an intrinsically safe circuit and is certified according to Il 1 GD EEx ia IIC for the EU For the U S it is suitable for CL1 Div 2 GRPS B C D hazardous locations with IS Entity connections to CL1 Div 1 GRPS A B C D The input circuit and output circuit are electrically isolated from each other and from the supply voltage An isolated switching amplifier is required to operate the Ex version flow meters in the VHM series The input circuit can be monitored for open circuits and short circuits the monitor can be disabled using a wire jumper An error in the input circuit will block the signal output but will not be output as an error message Two positively switching PNP outputs short circuit proof transistor outputs output the antivalent digital signal VSE measurement X a amp amp o 0 Q MK13 P ExO multi modul EExig lIC 364 1 2 amp K lt Terminals 7 8 Power supply 7 Ub 8 GND OV Terminals 5 6 5 Output 1 PNP 6 Output 2 PNP LED green Ready for operation LED yellow signal Output 1 Ub Output 2 open LED off signal Output 1 open Ou
54. re some applications in which you will need a lightweight pick up VSE has years of experience and can provide solutions quickly to meet for example This is often the case in the field of automation VSE offers special requirements by modifying the mechanical and or electrical com two custom solutions made of titanium VRL S EX that are especially ponents of existing solutions lightweight If your application has other requirements please contact VSE in this regard 19 VSE 20 measurement Safety instructions for installation and operation in hazardous areas Only qualified personnel meaning authorized persons with special explosion protection training are permitted to install explosion protected equipment and systems The qualified personnel must have read and understood the installa tion regulations and the corresponding type examination certificates and declarations of conformity Work may only be done on the devices in a de energized state Before you operate the flow meter you must carefully clean and rinse the entire system so that no foreign particles from the installation can get into the measuring unit of the flow meter The pipes and the flow meter must always be filled in operation so that no gas bubbles can form Extremely dirty media or foreign particles in the medium can block damage or even destroy the measuring unit In these cases you should always install a sufficiently rated filter before the f
55. s T6 TA Media temperature 20 C 4 F max permissible 80 C 176 F Ambient temperature 20 C 4 F max permissible 50 C 122 F Flow meter labels and certifications Name and address of the manufacturer VSE Volumentechnik GmbH H nnestra e 49 58809 Neuenrade Germany CE marking 0158 Type designation L S Ex Marking according to Directive 94 9 EC 1G EEx ia IIC T6 TA Marking according NEC NFPA7O IS Div GRPS A B C D TA T6 i 33 VSE measurement Summary of the safety related technical data SINGLE PICK UP Type VIL S Ex VTL S Ex SINGLE PICK UP Type VEL S Ex DUAL PICK UP Type VDL S Ex SINGLE PICK UP FOR VHM TITAN Typ VRL S Ex BVS 05 ATEX E 121 FM ID 3026923 II 1G EEx ia IIC T6 TA IS CLI Div GRPS A B C D T4 T6 U 24 3 V 36 5 mA 110 mW C 0 12 pF Temperature class Max media temperature Max ambient temperature BVS 05 ATEX E 121 FM ID 3026923 II 1G EEx ia IIC T6 TA IS CLI GRPS A B C D T4 T6 BVS 05 ATEX E 121 FM ID 3026923 Il 1G EEx ia IIC T6 TA IS CLI Div GRPS A B C D T4 T6 U 18 7 V U 187 V 36 5 mA 36 5 mA P 110 mW 110 mW R 0 R 0 L 0 L 0 C 0 27 pF C 0 27 pF T6 4 20 C 4 F 2 T 2 80 C 176 F 20 C 4 F 2 T 50 C 122 F VSE Connection Cable blue RAL 5015 PUR shielded 2 x
56. s the medium viscous or abrasive Are there any fillers or other additives in the medium Is it necessary to install a hydraulic filter before the meter Which types of cleaners are used Can the seals withstand the cleaning agents and medium The Ex version of the flow meters in the VHM series are used in fluid technology applications in areas subject to an explosion hazard The pre amplifiers of this Ex version output a modulated digital signal This switching pulse is amplified and digitized by an isolated switching amplifier The signal frequency of the output pulse is processed in the electronics receiving the signal and is proportional to the speed of rotation of the gear and the flow rate The flow rate corresponds to the volume trans ferred which is measured continuously by electronically counting the output pulses properties of the devices depend on the type size and measure ment range as well as on the fluid to be measured Please contact VSE for exact type and size specifications All flow meters are tested according to the applicable legally required EMC directives EN 55011 and EN 61000 NHM Ex type flow meters are authorized for use in areas subject to a explosion hazard and fulfill the basic health and safety requirements relating to the design and construction of devices and protective systems according to Appendix Il of Directive 94 9 EC
57. ses x 2 impulses x 4 Two channel pick up impulses x 1 E Single channel pick up with T modified carrier frequency Single channel pick up with normal carrier frequency Flow Meter HM With the VDB series fiber optic output the signal can only be doubled pulse x 2 28 Technical data for the VHM Titan VSE measurement K factor imp liter Measured Volume V Frequency ml Hz Size Measurement range l min VHM 01 1 TI 0 01 1 VHM 02 2 TI 0 05 2 The exact data can be found in the calibration report Measurement accuracy Repeating accuracy Materials Gear bearings Seals Max operating pressure Medium temperature Ex type Ambient temperature Viscosity range Installation position Direction of flow Installation Protection class Dimensions for VHM Titan Flow meter with preamplifier VHM 01 22TS1 1 V L 01S00 M12x1 Earth M4 D i 1 L D uv Fox v approx 0 04 approx 5 417 approx 24 000 approx 7 6 303 approx 8 800 approx O 11 0 5 of the measured value at viscosities gt 10mm s 1 of the measured value at viscosities 1 10mm s 0 5 under the same operating conditions Gear housing Titanium Gears Stainless steel 1 4462 Gear bearings tungsten carbide Preamplifier housing Aluminum Al Mg 4 5 Mn 0 7 Sleeve bushing PTFE with FPM core or PTFE 10 bar
58. the flow meter system VHM electrical circuit i e between the explosive area and the non explosive V L S Ex may be used in areas classified as zones If connected to area potential equalization exists AEx ib Associated Apparatus the flow meter system may only be used in zone 1 or 2 Hazardous Classified Locations Drawing No V 06 6 084 13 VSE measurement FM Approved Isolator Barriers Discrete Input Devices with Intrinsically Safe Field Circuits c Us NON HAZARDOUS LOCATION OR HAZARDOUS CLASSIFIED LOCATION APPROVED Closs 1 Division 2 Groups A B C D Closs Div 1 Groups AB C D Closs ll Div 1 Groups E F G Closs I Div 1 or Class I Zone 0 1 or 2 Group IIC IIB or IIA MK13 R Ex0 24VDC MK13 R Ex0 12VDC MK13 R ExO MK13 PF Ex0 24VDC MK13 NF Ex0 24VDC MK13 PN Ex0 24VDC Switching Amplifier rogramming MK13 P Ex0 24VDC Jumper MK13 P Ex0 24VDC K15 MK13 N Ex0 24VDC Entity Parameters Class Division 1 Class 11 Division 1 Class Il Division 1 Entity Parameters Class I Zone 0 1 or 2 M Le mH Uo lo R Le mH Terminals mA mW AB CE OFG Terminals mAy mw uc uB iA wc uB IA 9 6 19 4 46 6 3 6 26 210 82 296 700 Wise MK13 P x0 24VDC K15 W13 P D0 24 0C K15 MK13 R Ex0 V0C Notes 1 The symbol designotes of the following e For U
59. tput 2 Ub LED red fault Output 1 open Output 2 open Label plate Terminals 3 4 Input circuit monitor disable monitoring connect terminals 3 and 4 Terminals 1 2 Intrinsically safe input circuit 1 Uex 2 Uex Figure 2 View of the isolated switching amplifier MK 13 P ExO 24VDC K15 The blue terminals 1 4 of the isolated switching amplifier are equipped with circuits with the intrinsically safe type of protection for explosion protection in accordance with EN 50020 FM3600 The intrinsically safe circuits have been certified by authorized certification agencies and are permitted for use in the corresponding countries Flow meter nalen mr i Signal output ol 8 2 V nr ii signal WS 104 l it YE RD 2 O i FL fi inv signal ii 3 H Potential Bridge Oo ii PN ii y Pwr power Ub for switching off ii VWs input circuit 4 Power supply monitoring Or GND Ub Figure 3 Circuit diagram of the isolated switching amplifier MK 13 P ExO 24VDC K15 The flow meter outputs a digital signal that is processed further in the isolated switching amplifier Since the signals are transmitted using an impressed electrical signal only two wires are needed in the transmission cable to transmit the signal From the electrical signal the isolated switching amplifier generates the positively sw
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