EDZ 420, User Manual - metra
Contents
1. trikon 4 0 Pulse 3 O 7 2 0 us 4 20mA 24V 1 9 Q Connect shield to cable fitting External ground Analogue transmission 4 20 mA to indicator or chart recorder trikon A AC Pulse ee Indicator 2 e 000 O 4 20mA 24 1 0 3 Connect shield to cable fitting External ground Analogue transmission 1 5 V to indicator or chart recorder trikon 4 0 i Pulse Indicator ES 000 CH n 250 6 2 CH 4 20mA 24 1 Connect shield F le fitti External ground to cable fitting Pulse transmission 1 5 V to counter or computer 24N Cis trikon AA Counter or computer Pulse 3 0 000 SC 250 2 G 4 20 1 uw T Connect shield to cable fitting External ground METRA Energie Messtechnik GmbH Page 11 of 40 Vortex meter trikon 4 3 Load As to the permissible load several parameters need to be considered In order to ensure reliable HART communication the limits for the minimum load of R gt 250 Q must be observed Maximum Load The maximum load depends on the power supply voltage The following relationship applies Maximum load 1000 ama ma sss sas2. Page 39 of 40 Vortex meter trikon 12 Index Approvals 34 Auto adaptive 6 Bluff body 6 Caps 7 Carcinogenic 5 CE mark 34 Certificates 34 Characteristic values 34 Climatic category 31 Commissioning 7 Connection options 10 Connections 10 Corrosive 5 Degree of protection 31 EEx ib IIC T4 34 Electromagnetic compatibility 31 Environmental conditions 31 Fitting part 8 Flow rate limit 33 Foreign bodies 7 8 Hazardous 5 Hazards 4 Installation 7 Installation information 7 IP67 31 K rm n vortex trail 6 Load 12 Material 31 Maximum load 12 Measured error 34 Measured quantity 7 Measuring principle 6 Measuring range 7 Media pressure limit 33 Media temperature 32 Mounting 7 Namur 23 Poisonous 5 Power supply 10 Power supply voltage 10 12 Pressure loss 33 Process conditions 32 Process connection 31 Radioactive 5 Range of application 4 Reference conditions 34 Repairs 5 Repeatability 34 State of aggregation 32 Stock temperature 31 Storage temperature 31 System description 6 System structure 6 Two wire 23 Two wire link 10 Types dimensions 29 Up and downstream pipe sections 8 Viscosity 32 Vortex frequency 6 Warning 7 Weight 30 METRA Energie Messtechnik GmbH Am Neuen Rheinhafen 4 67346 Speyer Germany Tel 449 0 6232 657 519 Fax 49 0 6232 657 200 METRA can accept no responsibility for possible
3. 050 O60 ANNI Page 28 of 40 METRA Energie Messtechnik GmbH Vortex meter trikon 6 Dimensions and Weights 6 1 Dimensions of the Various Models 6 1 1 Types Dimensions Pressure Greg DN 40 eem 300 DN n s in S DIN nenes ae SCC sj w 45 1 35 65 2 _ Lap 23 L4 tit 6 _ 200 EE Flange model Sandwich model METRA Energie Messtechnik GmbH Page 29 of 40 Vortex meter trikon 6 1 2 Weight DN Weight Weight sandwich flange model model NSI i 1 1 1 2 2 4 h on DICH e e OE TESI Sisi ee Eu 10 199 300 Page 30 of 40 METRA Energie Messtechnik GmbH Vortex meter trikon 7 Specifications 7 1 Material Sensor stainless steel 1 4571 and 3 1B certificate Housing with bluff body stainless steel 1 4404 and 3 1 certificate Seals viton and graphite other materials upon request Electronics housing die cast aluminum 7 2 Process Connection Sandwich DN 15 to DN 300 and PN 10 to PN 40 PN 100 upon request 15 12 Class 150 and Class 300 Class 600 upon request Flange DN 15 to DN 300 and PN 10 to PN 40 PN 100 upon request 15 12 Class 150 and Class 300 Class 600 upon request Larger nominal sizes and pressure stages upon request 7 3 Environmental Conditions Exposure of the
4. o Page 18 of 40 METRA Energie Messtechnik GmbH Vortex meter trikon Function Switches Channel switch Access levels Failure signal Alarm at 21 8mA Counter reset 0 OFF 0 Display level 0 OFF 1 Reset 1 User level 1 ON 2 Service level Auto adaptation Auto adaptation Filter bandwidth cap selection filter selection 0 Default 0 OFF 0 OFF 0 20dB normal 1 ON 1 ON 1 40dB Amplifier guidance Hardware reset Amplifier bandwidth in stages K22 at Qmax 0 Default Low flow suppression 0 OFF 1 ON 0 OFF 0 OFF 0 normal 1 ON 1 ON 1 wide Filter guidance Open measurement range Current pulse output Output filter fo general 0 Default 0 OFF 0 OFF 0 OFF for HART comm 1 ON 1 ON 1 ON Auto adaptation LCD test Selection of the number 0 Default 0 0 OFF Oto 6 1 ON 1 ON Current simulation Quick start Current pulse output NAMUR output value of K15 with HART comm only at 150ms 0 OFF 0 OFF 0 OFF 1 ON 1 ON 1 Original frequency 2 Scaled pulses 3 8 Simulation values Alignment PWM Quarz Pulse simulation Pule width select NAMUR output 0 OFF 0 OFF 0 150ms 3Hz 1 ON 1 100ms 5Hz 2 45ms 11Hz 3 28ms 18Hz Simulation values NAMUR output Frequency simulation 28Hz 112 5Hz 900Hz 1800Hz 3600Hz Pulse simulation 8 Pulse width METRA Energie Messtechnik GmbH Page 19 of 40 Vortex meter trikon 5
5. where p Operating density ko m p Operating pressure abs N m2 resp Pa R Specific gas constant Nm kgK T Operating temperature K Example Medium air 5 bar t 20 p 5 x 10 260 x 293 15 p 6 56 kg m Specific gas constant R Type of gas Ri in Nm kg x K 8 20 320 48 9 8 26 462 Table 12 Specific gas constants of some gases 2 CO Carbonmonoxide CO 2 NH3 e 2 N2 H2 Page 36 of 40 METRA Energie Messtechnik GmbH Vortex meter trikon 10 Tables State quantities of water and steam Pressure Boiling Steam abs temperature density p 1 ps bar C kg m 0 30 69 12 0 1912 0 40 75 89 0 2504 0 60 85 95 0 3660 0 80 93 51 0 4792 1 0 99 63 0 5905 1 2 104 81 0 7003 1 6 131 32 0 9167 2 0 120 23 1 130 3 0 133 54 1 652 3 4 137 86 1 858 4 0 143 63 2 164 4 5 147 92 2 417 5 0 151 85 2 669 6 0 158 84 3 170 7 0 164 06 3 667 8 0 170 41 4 161 9 0 175 36 4 654 10 179 88 5 114 11 184 06 5 634 12 187 96 6 123 13 191 60 6 612 14 195 04 7 100 15 198 28 7 580 16 201 37 8 077 17 204 30 8 566 18 207 11 9 056 19 209 79 9 546 20 212 37 10 04 22 217 24 11 02 26 226 03 13 00 30 233 84 15 00 34 240 88 17 02 38 247 31 19 07 40 250 33 20 11 METRA Energie Messtechnik GimbH Page 37 of 40 Vortex meter trikon Density and vapour pressure of water T 0 0 00611 1 0 00657 2 0 00706 3 0 00758 4 0 00813 5 0 008
6. 3 1 General Information e METRA vortex meters are precision flow meters Inlet and outlet are covered with caps for protection against foreign bodies Remove caps shortly before putting the device into operation e Observe the operating data on the vortex meter in the order confirmation and the configuration data sheet If you want to operate the device with different operating data you must consult Bopp 8 Reuther Messtechnik GmbH indicating the factory number The vortex meter may be mounted in any position The vortex meter can be installed in horizontal or vertical pipes e he permissible ambient temperature air temperature around the meter body must not be exceeded With both high liquid temperatures e g steam and a horizontal mounting position it is recommended installing the vortex meter such that the position of the extension pipe with the electronics housing is either up or beside the pipe Optimal is an installation with a slope of 30 45 e f pipe and meter are thermally insulated at least half of the extension pipe should be uninsulated 3 2 Installation Information Warning Before mounting and commissioning the device carefully read the Operating Instructions and the Declaration of Conformity Before mounting or disassembling the device depressurize and cool down the system e he measuring chamber of the vortex meter must be installed in the pipe in such way that the IP 67 degree of protection according to
7. Q max 60 000 kg h 16 67 kg sec Pulse width 28 ms f max 18 Hz Z gt 16 67 18 0 926 kg smallest pulse value possible Z 1 or higher i e 1 pulse 1 kg 5 4 1 5 Pulse Width Function switch D 6 The output pulse width can be selected according to the following table Setting 3 Pulse width 5 4 1 6 Pulse Simulation NAMUR pulse output With pulse simulation various output pulses can be simulated During a simulation the transmission of the vortex signals is stopped 1 Switch on pulse simulation with function switch C 6 2 Select output pulses with D 5 Setting 3 4 s 7 8 pulse width according to D 6 Value Hz 28 1125 900 1800 3600 3 IS Di Two wire current pulses Pulse simulation has an effect only on the scaled pulse output Pulse width must be set to 150 ms 3Hz METRA Energie Messtechnik GimbH Page 23 of 40 Vortex meter trikon 5 5 1 Low Flow Cutoff Below the programmed lower range value Qmin the output variable is set to zero 0 i e the current output decreases to 4 mA for analog operation and the pulse output is switched off for pulse operation Low flow cutoff can be deactivated for special applications e g pulse output for test purposes Set function switch D 2 to 0 OFF 5 6 Unit Selection Channel 10 5 6 1 Standard Units You can select the desired unit with Channel 10 Setting o t 2 a js
8. grooves and slots where residual liquid might be found This is especially important if the medium is detrimental to health e g corrosive poisonous carcinogenic or radioactive etc e We must ask you not to return any device about which you are not sure that it is absolutely safe Costs that are caused by the possible disposal of the device or personal injuries e g burns because the unit has not been cleaned carefully will be borne by the plant operator If your vortex meter does not function properly please contact our customer service METRA Energie Messtechnik GmbH Am Neuen Rheinhafen 4 67346 Speyer Tel 49 6232 657 519 Fax 49 6232 657 200 1 6 Right of Alterations METRA Energie Messtechnik GmbH reserves the right of introducing engineering changes due to improvements without having to provide separate information METRA Energie Messtechnik GimbH Page 5 of 40 Vortex meter trikon 2 Description The trikon vortex meter uses a new state of the art electronic converter The trikon can display counter contents flows current output 4 20 mA or vortex frequency The flow rate is also indicated with an analog 4 20 mA current loop according to NAMUR NE 21 The VTX 2 vortex meter is based on two wire technology and supplied with power via this current loop With the integrated HART Interface long distance data transmission to a control room or a portable on site data terminal can be carr
9. 3 Description of Functions 5 3 1 Analog Operation Channel 16 The analog output signal of 4 to 20 mA can be freely assigned to the desired measuring range within the flow rate limits of the corresponding counter quantity There are two analog operating modes 5 3 1 1 Output Signal Proportional to Upper Range Value 4mA Q 0 Mode 0 Output signal mA 20 Measuring range 0 Q min Q max Q Nom Channel 7 Channel 6 Below Qmin Channel 7 low flow cutoff 5 3 1 2 Output Signal Proportional to Measuring Range Span 4 mA Q min Mode 3 Output signal mA 20 Measuring range 0 Q min Q max Q Nom Channel 7 Channel 6 This setting is made with Channel 16 Mode Operating mode 4mA Q 0 5 3 1 3 Damping of Output Current Channel 14 With channel 14 you set the damping ratio The setting range is between 1 no damping and 200 highest degree of damping time constant 200 s Page 20 of 40 METRA Energie Messtechnik GmbH Vortex meter trikon 5 3 1 4 Current Simulation Channel 15 With the current simulation you can set different output currents between 4 and 22 mA How to proceed 1 Switch on current simulation with function switch 5 enter 1 2 Setthe desired output current with Channel 15 enter value in mA 3 Switch off current simulation with function switch 5 enter 0 5 4 1 Pulse Operation Counter operation 5 4 1 1 Two Wire Current Pulse Output Channel 16 For volume measurem
10. IEC 529 is ensured e Technical information of the manufacturer referring to the use of the vortex meter in connection with corrosive liquids must be observed e he measuring chamber of the vortex meter must be included in the equipotential bonding of the pipe e he housing of the vortex meter which accommodates the electronics must not be exposed to sudden temperature changes METRA Energie Messtechnik GmbH Page 7 of 40 Vortex meter trikon 3 3 Fitting the Sensor Clean the pipe of foreign bodies before installing the vortex meter When flushing and purging the pipe replace the vortex meter with a fitting part Do not remove the caps on the in and outlet of the vortex meter until you install the device Ingress of foreign objects must be avoided Observe the arrow on the meter body indicating flow direction Mechanical loads exerted from the pipe onto the meter are not permitted Ensure that the meter body is correctly centered and the gaskets do not project into the free pipe section Centering rings or pipes can be helpful supplied on request The flat gaskets not included must be suitable for the liquid the maximum operating temperature and the maximum pressure it is recommended that groove gaskets with a layer and a centering ring be used The inside diameter of the flat gasket must not be smaller than the inside diameter of the meter body The screw bolts not included must comply with the specifications accor
11. are marked by the position of the cursor the parameters and service data by a two digit channel number When in the operating mode roll mode the flow and count are displayed in alternating fashion By operating the plus or the minus key the operator may switch over the display to indicate the desired channel After about 5 minutes the selected channel changes back automatically to the roll mode where count and flow are displayed Keeping the plus key depressed for 3 seconds will invoke the roll mode immediately 5 2 3 Access Levels When operating the instrument via the keys there are three access levels which must be considered In channel a the desired access level can be enabled at digit 0 see also table Functions switches e Display level operating mode 0 All configuration and measurement data can be displayed writing can only be done through channel a e Userlevel programming mode A 1 In addition the default settings for the vortex meter can be configured On this level operation of the function switches can be changed Service level programming mode A 2 All coefficients and alignment parameters can be configured METRA Energie Messtechnik GimbH Page 15 of 40 Vortex meter trikon 5 2 4 Examples General note After each change to the settings the instrument should be reset power on reset or reset through function switch B2 so as to check the newly entered resp changed values through invok
12. in the downstream pipe section The pressure measurement device must be installed 3 x nominal size and the temperature measurement device 5 x nominal size downstream from the vortex meter 3 4 Turning the Electronics Housing Turning the Up Front Display At the transition from the sensor housing to the spacing pipe the set screw with the 2 mm hex socket must be loosened Then the housing may be turned to the desired position Finally the set screw is arrested once more Threaded pin Fig 3 Turning the electronics housing Bez 12345678 Screw M3 Fig 4 Up front display turning the display The up front display may be turned in 90 degree increments For this 1 Unscrew the dial plate loosen two M3 screws 2 Turn the two size 5 hex studs out 3 Now the operating unit with the display may be carefully pulled out of the connector and inserted again in the desired 90 degree position 4 Fit the hex studs and the dial plate once more METRA Energie Messtechnik GmbH Page 9 of 40 Vortex meter trikon 4 Electrical Connections The electrical connections are located behind the cover on the short side of the housing To operate the trikon a two wire link terminals 1 2 will do This two wire link has three functions e Transmission of the 4 20 mA analog signal corresponding to the flow and the pre set range limits e Provision of the auxiliary energy for the trikon e Transmission of the digit
13. of a power failure the parameter data is saved in an EEPROM 1 4 Staff for Installation Commissioning Work and Operation Only trained experts authorised by the operator of the system may run the installation work electrical installation work commissioning work maintenance work and operate the system Such staff must have read understood and follow the information given in the operating instructions e Inthe case of aggressive media the resistance of all parts seals sensors casings etc in contact with the medium must be clarified first e As arule the rulings and regulations which apply in your country must be observed 1 4 1 Factory Settings The vortex meters are set up in the factory in accordance with the operating conditions specified in your order These settings are stated in the enclosed configuration data sheet When making any changes to the factory settings you must take note of Chapter 5 Configuration Operation Page 4 of 40 METRA Energie Messtechnik GmbH Vortex meter trikon 1 5 Repairs and Hazardous Materials The following measures must be taken before you send your vortex meter back to METRA for repair e In any case include with the equipment a note with a description of the failure the application and the chemical and physical properties of the measured medium for a form see 14 2 e The returned equipment has to be clean and dry remove all residual liquid Carefully inspect all lining
14. 0 4 2 Examples or Connections deua sad uev e au Eer 11 4 2 1 Application within Non Explosion Hazard Areas 11 Re E 12 4 4 Max Electrical Specifications Relevant to Safety in Accordance with the Declaration of Conformity tenet S lE aot ons CL DEAL CAM AM Ea UM E 13 SET EE HERE Udo obe v o ec EVE LEER ERE MEUS 13 e COMNGUIallOn ger CT E TUTTI 14 co eat I EE 14 5 2 Configuring Using the Keys on the Operating 14 5 2 Meri ecce 14 5 2 2 UD Front DISIA V uiui au an a aaa at 15 5 2 9 ACCESS OV CUS deut erue tes re DEM EM EISE AME 15 2 2 cc int a a M 16 5 24 Channel e TE 18 mio cuota eno S E E IEE ES eE 18 E 18 FUNCION elei P aaa 19 EISE EECH cte C 20 5 3 1 Analog Operation Channel 16 nemen nnne nnne 20 5 3 1 1 Output Signal Proportional to Upper Range Value 20 5 3 1 2 Output Signal Proportional to Measuring Range Span 20 5 3 1 3 Damping of Output Current Channel 14 20 5 3 1 4 Current Simulation Channel 15 E 21 5 4 1 Pulse Operation Counter operation 21 5 4 1 1 Two Wire Current Pulse Output Channel 16 21 5 4 1 2 Two Wir
15. 7 4 3 Viscosity Viscosity limits the linear measuring range for which the error limits measured error are valid Linearity limit 2 826 D inside diameter mm Re Reynolds Number limit value v dynamic viscosity m s Page 32 of 40 METRA Energie Messtechnik GmbH Vortex meter trikon 7 4 4 Media Pressure Limit Depends on the design 7 4 5 Flow Rate Limit The max velocity for gases and steam is about 80 m s and for liquids about 10 m s In the case of liquids the cavitation limit needs to be observed in addition For gases having a density lt 1 2kg m the lower limit for the measurements can be calculated from Q 1 1 VPs Q lower flow limit for air m h see Table 2 4 The limit for linearity will depend on viscosity and is for a Reynolds number of Re 20000 see 7 4 3 This can be checked using the following equation 2 826 D Rev 7 4 6 Pressure Loss Pressure loss can be calculated using the following equation Ap 1400 o mbar where Operating density ko m Operating flow rate DN Nominal size mm The results obtained will represent a rough estimate Example DN 100 Qs 230 m h pg 7 1 kg m saturated steam at 14 bar Ap 1400 x 7 1 x 2302 100 5 25 mbar Remark see Annex Table for saturated steam Approximate calculation for determining operating density Gas constants Ri table METRA Energi
16. 7 Js o 5 6 2 Special Units In order to activate this function you must set channel 10 to the USER unit 15 With channel 29 or 30 you can set the factors with which the process values can be converted to any unit or display value If the default setting is active the conversion factors in channel 29 and 30 are set to 1 i e the value is displayed in the previously valid units e g in m or m3 h The value range of these factors is 0 0001 lt F lt 99990 Caution The counter must first be configured for the required operating volume measuring range with the units m h The basic units m or m h are to be included for the calculation of the conversion factors to the desired display value Note The maximum flow rate must not exceed a number of 99990 Page 24 of 40 METRA Energie Messtechnik GmbH Vortex meter trikon 5 6 2 1 Flow Rate Factor Channel 29 With channel 29 you set the conversion factors for the flow rate display Example 1 Converting standard volume flow rate for the unit m h Flow rate factor 5 Ps PN p Operating density e g p 7 00 kg m p N Standard density e g p N 1 28 kg m 7 00 5 4689 1 28 Example 2 Converting the standard volume flow rate for the unit yard d for p g p 6 0000 Flow rate factor puc BH He PN y X Conversion factor for volume unit e g 1 m 1 30795 yard i e xz 1 30795 y Conversion factor for time u
17. 72 6 0 00935 7 0 01001 8 0 01072 9 0 01147 10 0 01227 11 0 01312 12 0 01401 13 0 01497 14 0 01597 15 0 01704 16 0 01817 17 0 01936 18 0 02062 19 0 02196 20 0 02337 21 0 02485 22 0 02642 23 0 02808 24 0 02982 25 0 03166 26 0 03360 27 0 03564 28 0 03778 29 0 04004 30 0 04241 31 0 04491 32 0 04753 33 0 05029 34 0 05318 35 0 05622 36 0 05940 37 0 06274 38 0 06624 39 0 06991 40 0 07375 41 0 07777 42 0 08198 43 0 08639 44 0 09100 45 0 09582 46 0 10086 47 0 10612 48 0 11162 49 0 11736 50 0 12335 51 0 12961 52 0 13613 53 0 14293 54 0 15002 55 0 15741 Page 38 of 40 987 6 986 6 986 2 985 7 0 16511 0 17313 0 18147 0 19016 0 19920 0 2086 0 2184 0 2286 0 2391 0 2501 0 2615 0 2733 0 2856 0 2984 0 3116 0 3253 0 3396 0 3543 0 3696 0 3855 0 4019 0 4189 0 4365 0 4547 0 4736 0 4931 0 5133 0 5342 0 5557 0 5780 0 6011 0 6249 0 6495 0 6749 0 7011 0 7281 0 7561 0 7849 0 8146 0 8453 0 8769 0 9094 0 9430 0 9776 METRA Energie Messtechnik GmbH 11 Certificate of Non Objection for Contractor Unbedenklichkeitsbescheinigung f r Auftragnehmer Certificate of non objection for contractor Fiche de Renseignements Kunde Client Client Auftragsnr Lieferschein Order No Delivery note No d ordre Bordereau de livraison Auftragstext Order text Caract ristiques ATTENTION GEFAHREN HINWEISE ATTENTION Vortex meter trikon Letzter
18. 800 sumsum REN EE IR PITT TINT TTT Coa eee PITT TTT TA ER E E SS EN E EE ES E E BL EEHESBEE Load Ohm v E E E E N R N R i B E R R E M B min for HART communication 200 14 16 18 20 22 24 26 28 30 Power supply voltage V Fig 6 Load For Us lt 15 2V R Ug 14V 0 004A For Ug gt 15 2V R Ug 8 5 0 022A The resistances are stated in Q Page 12 of 40 METRA Energie Messtechnik GmbH Vortex meter trikon 4 4 Max Electrical Specifications Relevant to Safety in Accordance with the Declaration of Conformity Two wire power supply and signal circuit 4 20 mA current loop terminals 1 2 Voltage U 2 30 V DC Current 2 110 mA Power 825 mW Effective internal capacitance Ci 11 nF Effective internal inductance Li lt 4 uH Two wire signal circuit NAMUR pulses frequency signal output acc to NAMUR terminals 3 4 Voltage U 20 V DC Current 50 mA Power P 160 mW Effective internal capacitance Ci lt 11 nF Effective internal inductance Li lt 4 uH 4 5 HART Connection For HART communication there are different connection options In any case it is required that the loop resistance remains below the va
19. ME 7 RA m Energie Messtechnik Www Member of Bopp amp Reuther Messtechnik Group Vortex Flow Meter trikon Manual We ask you to thoroughly read the manual and keep it safely Subject to changes Version 1 11 METRA 10 2013 Vortex meter trikon Table of Contents EE le ele E e 4 SW Let Ee erte 4 endum cxi M ree Ee AE Ru 4 JO uer EP 4 1 4 Staff for Installation Commissioning Work and Operation a 4 E b Factory dl e uu santa etre anata cce dup a ue 4 15 Taepalrs andtiazardous sinas ul EAR CR 5 t e Alle 0 IT UU ITem PS 5 2 uu u TEE 6 2 Jl 6 EECHER ebe tee eegen 6 ng 7 AE WNC AS AMC RANGE u utu ET 7 ol E O A metas ete ole aan u IR 7 SoSH Call IMO AU OM od tea L S dane aQ eeu a el caca oni 7 Su Stal 7 2 9 Eeer SEENEN 8 3 3 1 Up and Downstream Pipe Gechons 8 S9 T EEN 9 3 3 2 1 Pressure and Temperature Compensation sees 9 3 4 Turning the Electronics Housing Turning the Up Front Display 9 4 Electrical OMIMEC 10 4 PA 1
20. RA Energie Messtechnik GmbH Vortex meter trikon Enter key 1 To move the entry position the cursor moves from left to right and for taking over the current value cursor is no longer displayed Moreover with the enter key it is possible to reset the status information in channel 17 Example In order to activate channel 6 the enter key needs to be operated four times so that the cursor moves Display from position 4 to the right Pressing the enter key once more will shift the cursor out of the display to Position 7 6 5 4 3 2 1 0 the right and channel 6 with the current content 1 0000 is activated METRA Energie Messtechnik GmbH Page 17 of 40 Vortex meter trikon 5 2 4 Channel Overview Channel Code Table entries Digits Value Unit Keys a o AES Percentage display 4 Current display 13 m h Q Qmax variables gt 5 ie 5 lt N oo Se oo o B g lt een cese i Man m3 h m3 h o Imp m m3 h 9 3 3 Liquid gas steam Minimum operating density Current damping kg m Basic settings gt Current simulation Analog pulses 2 wire current loop Status information 0001110 0010010 0000000 0141100 Function switch a Function switch b Function switch d 0 15 Function switch c EEN settings 400 14000 460 00 approx 2 5 approx 2 5 Capacitance selection 3 lt lt lt lt lt lt lt
21. Stoff Last medium Dernier liquide mesur Eigenschaften angeben z B tzend brennbar giftig State characteristics i e corrosive flammable toxic Identification des dangers p e corrosif inflammable toxique Ger t entleert Unit drained Vidang compl tement ja yes oui nein no non Sp lung mit drained with liquide de ringage Restverschmutzung rest of medium impuret s restantes ja yes oui nein no non SCHUTZMASSNAHMEN PROTECTION MEASURES MESURES DE PROTECTION SchutzmaBnahmen protection measures mesures de protection ja yes oui Handschuhe gloves gants Schutzanzug protection suit tenue de s curit Gestellbrille eye glasses lunettes Korbbrille und Gesichtsschutz Glasses with face protection Lunettes avec protection du visage Atemschutz respirator appareil respiratoire Mit Absaugung arbeiten extractor cowl travailler sous hotte aspirante Besondere Schutzma nahmen special protection mesures de protection Particuli res Bite angeben please state pr ciser Beauftragter Mandatory Mandataire Name in Druckbuchstaben name in printed letters nom en lettres capitales Ort und Datum place and date lieu et date Unterschrift signature signature METRA Energie Messtechnik GmbH nein no non
22. a nnne nennen nnns nnns 29 Ds Types DIMENSIONS aa p usupa Susa uuu ER SIM DM AME IUS 29 T e yas MR E ENRICO I 30 Pl slo ciel AO EE 31 ER e EE rob m qc ec IUS 31 T dq rOBBsS CORO ION uru 31 7 8 Environmental Conditions ee 31 7 3 1 Ambient Temperature 31 7 3 2 Storage Temperature L D 31 7 33 ie law aa w a ia 31 7 3 4 Degre of Protection iii ul l EE EEN 31 7 3 5 Electromagnetic Compatibility 31 LA RE el dea 32 7 4 1 Media we E 32 7 4 2 State e ele Ee EE 32 TAS ASCO SUL eee zis eee Rm 32 7 4 4 Media Pressure OH eege 33 TAD FIOW Halte LIMI c uuu uu uuu u uoce EE 33 TAG Press re L SS rae SG n 33 TAT C vitaton ioa viet ul u Sa edi as Loo Eve ED u usa 34 FE S EU m m S 34 7 54 Reference COMGITIOIS uu ooi e tae tora ata nis 34 7 9 2 Measured Error ACCUraCy itio io eerte iu eiua V EE 34 iem 34 7 6 Certificates Approvals and 34 8 tikon Data Seele ky u y a uuu abans e 35 9 Approximate Calculation for Determi
23. age 26 of 40 METRA Energie Messtechnik GmbH Vortex meter trikon 5 7 1 Device Data Channel 8 The k factor is a device constant that is calculated for each device through a factory calibration The value is entered in pulses l for DN 15 to DN 80 in pulses m for DN 100 to DN 250 The measuring range table lists the mean values for the individual nominal size 5 8 1 Nominal Size Channel 11 When you exchange the electronics the nominal size must be set as follows DN DIN 15 25 40 50 80 100 150 200 250 im p 21 31 41 6 p 10 5 9 1 Medium Channel 12 The medium determines the limit values of the measuring range see measuring range table and the automatic gain and filter settings of the electronics The setting is made in three classes Setting O j i 5 10 1 Density Channel 13 Here you must enter the minimum operating density of the medium With this density apart from the effect on the automatic amplifier and filter setting the conversion is performed with respect to the standard mass unit that may have been selected The operating density must be entered in the unit ko m METRA Energie Messtechnik GmbH Page 27 of 40 Vortex meter trikon 5 11 1 Amplifier Limiter Channel 22 The optimum settings for the intended operating conditions are factory preset However periodic pulsations or vibrations of the pipe may generate unwanted signals and a flow rat
24. al HART communication signal In addition two further terminals terminals 3 and 4 are available for the pulse output in accordance with NAMUR Located on the connection pcb are three tabs TP for servicing l Connection at TP 1 2 Voltage measurement 40 200mV corresponding to 4 20mA to check the analog signal l Connection at TP 2 3 Communication via HART handheld terminal or HART interface note explosion hazard regulations Vortex meter trikon Transmitter power supply unit 15 30 V Caution For HART communication a minimum load of 2500 15 required Pulse output Namur unscaled max 5000 Hz scaled max 18Hz Test current loop V Fig 5 Connection options HART Communicator 4 1 Connecting the trikon Power supply The power supply voltage range is 14 30 V DC and 30 V DC must not be exceeded Cable fitting M20 x 1 5 Cable diameter i 6 to 12 mm Terminals GKDS Ex Wire cross section 4 mm rigid Wire cross section 2 5 mm flexible In order to comply with the stringent EMC requirements shielded connecting cables must be used The shield must be connected at both sides A requirement for this is an effective and trouble free equipotential bonding within the system Page 10 of 40 METRA Energie Messtechnik GmbH 4 2 Examples of Connections 4 2 1 Application within Non Explosion Hazard Areas Vortex meter trikon Local display without signal transmission
25. ding to the operating conditions flange type pressure class Long pipes which are prone to vibration must be supported or fixed in the up and downstream pipe section Carefully check the system for tightness after completing the installation 3 3 1 Up and Downstream Pipe Sections A fully present turbulent and undisturbed velocity profile in the upstream pipe section is a prerequisite for a valid measurement The minimum lengths are the following 10 x nominal size for the upstream pipe section 5 x nominal size for the downstream pipe section In view of the most commonly encountered installation mistakes following drawings show the minimum upstream and downstream pipe sections which are required Upstream Downstream Upstream Downstream 2x 90 deg bends in one plane Reducer 2x 90 deg bends in two different planes Fig 2 Upstream and downstream pipe sections Page 8 of 40 METRA Energie Messtechnik GmbH Vortex meter trikon 3 3 1 1 Flow Straighteners The installation of flow straighteners may reduce the influence of disturbances and the length of the required upstream pipe section If the measurement has to be very precise the upstream pipe section with a built in flow straightener must be taken into account in the calibration process 3 3 2 1 Pressure and Temperature Compensation If pressure and or temperature measurements are planned the respective measurement device must be installed
26. ds CE mark EMC in accordance with directive 89 336 EWG 50081 Part 1 and 2 EN 50082 Part 1 and 2 well as NAMUR NE 21 Type of protection for the housing EN 60529 NAMUR EN 60947 5 6 Equipment safety EN 61010 Pressurised equipment directive 97 23 EG Page 34 of 40 METRA Energie Messtechnik GmbH Vortex meter trikon trikon Configuration Data Sheet jSetadno le jTagno measpoino j Type modelcode Ds Nominalflowrate Liqud mh Gas jNemialpresue 5 Upper range vawe men n ower range value Qa D up to DN 80 from DN 100 k factor 5 5 pulses m Puse vave corz loo oi nw lo 100 E ca Lais me mir ee ova ois ose ur Jeroen em USER _ ims sns on oo oo ov oo oc DN 18 Operating densi rom 1 to 200 1 P Oo 1 Flow rate factor e mo 30 Volume factor EE Pulse ratio factor NAMUR pulse output L 1 2 Original vortex frequ Scaled pulses 0 1 2 3 150ms 3Hz 100ms 5Hz 45ms 11Hz 28ms 18Hz E series no date METRA Energie Messtechnik GmbH Page 35 of 40 Vortex meter trikon 9 Approximate Calculation for Determining the Density of Gas and Superheated Steam pzp RixT kg m
27. e Current Pulse Output with HART Function 21 SX To NAMI EE 22 5 4 1 4 Pulse Value Factor Channel KC E 22 ox misa aude T 23 DALO PUSE IAT OM cate RETRO we 23 5 5 1 LOW FIOW Reli uuu uuu L II I TT 24 5 6 Unit Selection Channel 10 a tke 24 56 Standard UNIS G S DN Pda 24 5 56 25 Declial DIETE S u ota eax eat aren at Ua cae kukka kuya taka disc distet dede 24 5 6 2 1 Flow Rate Factor Channel E E 25 5 0 2 2 Volume Factor Channel u shen Ninna actin Arai 26 5 6 2 3 Pulse Ratio Factor E 26 Page 2 of 40 METRA Energie Messtechnik GmbH Vortex meter trikon 5 7 1 Device Data Channel O8 uuu Eege 27 5 8 1 Nominal Size Channel 11 a rEPS EPI De RR pA Er eH es 27 5 9 P Medium Channel KC KEE 27 5 10 L Density e El e E GE 27 5 11 1 Amplifier Limiter Channel 22 r rr 28 5 12 1 Sensor Comparing Function Channel 34 a a 28 5 13 1 Status Information Channel 17 r 28 DO DIMGENSIONS EE 29 6 1 Dimensions of the Various Models
28. e Messtechnik GimbH Page 33 of 40 Vortex meter trikon 7 4 7 Cavitation in Liquids When running measurements on liquids the effect of cavitation within the vortex meter must be avoided For this it must be ensured by design that the pressure downstream of the vortex meter can not drop below the vapour pressure for the liquid used At an approximate back pressure given below cavitation can be avoided Dmin gt 2 8 x Ap 1 3 x p where Duiin E Minimum pressure in the pipe Ap Pressure loss 1400 x ps x DN Dy Vapour pressure of the liquid being measured under operating conditions Example DN 80 water of 20 C gt Q 108 m h 1400 x 998 3 x 1082 80 gt Ap vrx2 398 mbar 0 02337 bar from VDO table for water vapour 22 8 x 0 40 1 3 x 0 02337 1 15 bar Thus for a VTX 2 DN 80 water 20 C 108 m h a pressure over 1 15 bar is required so as to avoid cavitation Remark see table in the Annex density and vapour pressure of water 7 5 Characteristic Values 7 5 1 Reference Conditions According to IEC 770 20 65 relative humidity 101 3 kPa 7 5 2 Measured Error Accuracy Re 20 000 10 000 lt Re lt 20 000 1 0 of measured value 1 0 of upper value for Re 20 000 Liquids 1 0 of measured value 1 0 of upper value for Re 20 000 7 5 3 Repeatability 0 15 96 of measured value 7 6 Certificates Approvals and Standar
29. e is displayed in spite of the fact that the flow rate is zero With the setting in Channel 22 you can limit the amplifier gain in selectable levels Thus the device can be adjusted to the corresponding operating conditions A lower gain stage means lower gain In this way the sensitivity to disturbances can be reduced when the flow rate is zero Sage o js ja js js J Gain factor t 2 Io Caution If the stage number is too low the measuring range may be restricted at low flow rates During operation the currently active gains stage is displayed not the limit 5 12 1 Sensor Comparing Function Channel 34 This function contains a calibration value for suppressing inferences It serves the purposes of symmetry alignment between the two sensor circuits When changing the preamplifier stage the sensor comparing function should also be aligned 5 13 1 Status Information Channel 17 Channel 17 displays the current status of the device If a fault is detected it will be displayed in the status channel You clear the fault by acknowledging it by shifting If the same message is displayed again it is valid Code no Meaning Flow rate is in low flow operation 90 to 10096 eed EEPROM uam Incorrect data in 0 i Incorrect m in Channel 1 B Incorrect d n in Channel 35 ala entry via interface does not function properly Incorrect unit of measurement WEE Storage error alarm 21 8 mA
30. electronics housing to sudden temperature changes must be avoided 7 3 1 Ambient Temperature 40 C to 70 Operation of the LC display is only ensured down to 10 C 7 3 2 Storage Temperature 40 C to 70 C 7 3 3 Climatic Category Class DIEC 654 1 7 3 4 Degree of Protection IP67 IEC 529 EN 60529 7 3 5 Electromagnetic Compatibility According to EMC guidelines 89 336 EWG 50081 Part 1 and 2 EN 50082 Part 1 and 2 as well as NAMUR NE 21 Electromagnetic compatibility is only ensured when the electronics housing is closed When the electronics housing is open the device may malfunction due to electromagnetic signal pickup see Chapter 4 2 Connecting the trikon METRA Energie Messtechnik GmbH Page 31 of 40 Vortex meter trikon 7 4 Process Conditions 7 4 1 Media Temperature 40 C to 260 C standard up to 450 C for custom versions The temperature categories for category II media are given in following table Temperature category Media temperature Ambient temperature range electronics housing The temperature categories for category 1 1 media are given in the following table Temperature category Media temperature Ambient temperature range electronics housing 20 C to 60 40 C lt Ta lt 70 G The process pressure for the media must in the case of category 1 media range between 0 8 bar and 1 1 bar 7 4 2 State of Aggregation Liquids gases and steam
31. ents you can switch the two wire circuit to pulse operation Current pulses between 4 mA low and 20 mA high will be supplied as the output signal You can select between a scalable pulse output or a pulse output of original vortex pulses This setting is made with Channel 16 Operating mode Scaled pulses Original vortex pulses In addition to this setting the analog digital jumper on the front of the electronics must be set to digital operation Note HART communication is not permitted during pulse operation For HART configuration the pulse output must be switched off temporarily function switch D 3 enter 1 5 4 1 2 Two Wire Current Pulse Output with HART Function In the analog operating mode Mode 0 a pulse output with simultaneous two wire HART communication can be utilised Pulse signal specs Current pulses Current Low lt 9 mA Current High 2 12 mA Pulse width 150 ms For this the function switch C5 is set to 1 on The analog digital jumper on the front of the electronics must be set to analog operation The pulse width for the pulses which are output must be set to 150 ms A D Switch el Analog m Digital Fig 8 Analog Digital Switch METRA Energie Messtechnik GmbH Page 21 of 40 Vortex meter trikon 5 4 1 3 NAMUR Pulses In addition to the 2 wire connection a separate pulse output in accordance with NAMUR is available The additional NAMUR output can either be set to original vortex pulse
32. errors in catalogues brochures and other printed material METRA reserves the right to altar its products without notice This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed All trademarks in this material are property of the respective companies METRA and the METRA logotype are trademarks of METRA All rights reserved Page 40 of 40 METRA Energie Messtechnik GmbH
33. ied out via the same current loop All the relevant operating or configuration data can be read from or written into the transmitter Thus the operational mode of the vortex meter can be optimised for the measurement task on site or through a control system 2 1 Measuring Principle When a liquid or gaseous with a certain minimum flow velocity meets an obstructive body the liquid can only follow the contour of this body up to a particular point before it curls up to form a vortex This happens alternately on either side of the body The vortices travel downstream forming the K rm n vortex trail The frequency of the forming vortices is proportional to the velocity of the flow The series trikon vortex meter is equipped with a trapezoidal bluff body with a spring plate which induces a precise and highly repeatable separation of the vortices for both liquid gaseous media as well as steam Both the dimensions of the bluff body and its specially defined separation edge contour guarantee a good linearity of the error curve The vortices separating from the bluff body generate a vortex frequency thus causing both velocity and pressure alterations which are detected by a piezoelectric sensor and converted to output signals 4 20 mA or pulses The conversion is performed by an electronic converter with both auto adaptive and microprocessor controlled filtering of the sensor signal 1 Measuring pipe 2 Bluff body 3 Flowing medium 4 Vortex tra
34. il Fig 1 Principle Karman vortex trail 2 2 System Structure The vortex meter consists of three basic components e he measurement pipe with the bluff body for producing the K rm n vortex trail e The sensor for detection the fluctuating pressure caused by the vortices e Electronic converter The electronic converter pre processes and evaluates the meter pulses An analog 4 20 mA current loop and a digital communication module with HART protocol are standard features of the device In addition a pulse output according to NAMUR scaled or unscaled is available The electronic converter is installed in an industrial type housing with a screw down cover This ensures a high degree of protection against electromagnetic interference and moisture The electronics is separated from the connection compartment Page 6 of 40 METRA Energie Messtechnik GmbH Vortex meter trikon 2 3 Measured Quantity The vortex meter measures the volume resp the volumetric flow The mean velocity of the flow and the volumetric flow are proportional to the frequency of the vortices produced 2 4 Measuring Range Nominal width Gases Steam Liquid K factor DN in m h in volume for air ANSI min ma Impl Imp m 15 2 0 4 8 vo 1 Kc p Table 1 Measurement ranges the starting values for gas steam refer to air 20 1 013 bar and those for liquids to water 20 C 3 Installation
35. ing the corresponding channel number Plus key A To select a channel and to change the content of the channel in the positive direction Example Increase for channel 6 from 1 to 2 Display Position 7 6 5 4 3 2 1 0 Minus key V To select a channel and to change the content of the channel in the negative direction Example n 06 10808 Position 7 6 5 4 3 2 1 0 Programming key P This key has two functions Change of channel content The desired channel is selected through the plus or the minus key Operating the programming key enables the channel so that its content may be changed The cursor will be displayed Example Display A E If channel 11 nominal width has been w selected then the cursor will appear at position Position 7 4 3 2 1 U 2 Setting the position for the decimal point If the desired channel has been selected and if the programming key has been operated so that the cursor is visible now a decimal point may be set at the position of the cursor Pressing the programming key once more deletes the decimal point Example Here in channel 6 a decimal point is set at position 4 w N h Position For the following channels floating point entries are provided for Max flow Channel 6 Min flow Channel 7 k factor Channel No 8 Pulse factor Channel 9 Operating density Channel 13 Page 16 of 40 MET
36. lues given in Chapter 4 3 The HART interface may be connected at pads TP 2 and TP3 in the compartment for the terminals with the cover removed If the HART interface is to be used at a different point within the current loop then it may be connected as shown in Fig 5 In the example given in Fig 1 the connections of the HART communicator may be replaced with those of the PC or Laptop METRA Energie Messtechnik GimbH Page 13 of 40 Vortex meter trikon 5 Configuration Operation 5 1 General The following options are available for configuring the transmitter 1 HART communication through PACTware 2 HART communication through a handheld terminal 3 Up front operation through the keys and display of the operating unit 5 2 Configuring Using the Keys on the Operating Unit 5 2 1 Operation The instrument can be operated up front through the four keys on the operating unit For this the cover needs to be removed The following functions have been assigned to the keys Programming Switches the programming mode on sets decimal point Plus Increment Minus Decrement wel Enter Selects the next digit carries a value over LC Display Cursor Fig 7 Operating unit Page 14 of 40 METRA Energie Messtechnik GmbH Vortex meter trikon 5 2 2 Up Front Display On the display all variables and parameter settings may be displayed The process variables
37. ning the Density of Gas and Superheated Steam 36 FADE S MPH 37 11 Certificate of Non Objection for Contractor nennen nnne nnne nnns 39 e dm S 40 METRA Energie Messtechnik GimbH Page 3 of 40 Vortex meter trikon 1 Safety Information 1 1 Range of Application The vortex meter is used for rate of flow and volume measurement of liquids gases and steam Vortex meters of the trikon series are available in the nominal sizes ranging from 15 mm to 300 mm Depending on the nominal size they can be used from PN 10 to PN 40 The maximum permissible operating temperature for the medium is 260 C 450 C for custom units 1 2 Hazards The trikon vortex meter has been built in accordance with the latest safety standards It has been tested and has left our factory in a safety wise perfect condition In the case of improper use or when not used as intended by design hazardous situations can occur For this reason note especially the warnings given in the operating instructions 1 3 Safety The trikon vortex meter complies with the following safety criteria Safety requirements in accordance with EN 61010 EMC requirements in accordance with EN 50081 Part 1 and 2 EN 50082 Part 1 and 2 e NAMUR recommendation NE 21 e System of protection for housing IP 67 in accordance with EN 60529 In the event
38. nit e g 1 h 1 24d i e thus the flow rate factor is calculated 1 30795 Fp 6 188 34 1 24 METRA Energie Messtechnik GmbH Page 25 of 40 Vortex meter trikon 5 6 2 2 Volume Factor Channel 30 With Channel 30 you set the conversion factors for volume measurement Example 1 Conversion to standard volume for the unit m Volume factor PN 7 00 Fv 5 4689 1 28 Example 2 Conversion to standard volume for the unit yard where py 6 000 Volume factor Fy 6 x 1 30795 7 8477 x Conversion factor for volume unit e g 1 m 1 30795 yards d h x 1 30795 5 6 2 3 Pulse Ratio Factor Channel 31 With the factor FI that can be set with Channel 31 the magnitude of counter increment display Wz ni and pulse output NAMUR and current pulses Wpuls can be set differently For the standard setting the factor is 1 i e the significance of counter increment and pulse output are identical Wa W an Example F 10 Results a transformation of the scaled pulse output to ten times as much as the counter increment i e the pulse output is ten times faster Caution Observe the limit value for the maximum frequency of the pulse output see Table 4 4 F 0 1 Results in a reduction of the scaled pulse output to one 10 of the counter increment i e the pulse output is ten times slower The value range of this factor is 0 0001 x factor lt 99999 P
39. s e g for test purposes if a high pulse resolution is necessary or to scaled pulses with selectable meter factor and pulse width This setting is made with function switch D 5 Setting O el Pulses off Original vortex pulses Scaled pulses 5 4 1 4 Pulse Value Factor Channel 9 Through the pulse value factor you can set the meter factor of the output pulses and the counter increment You can set the following decadic steps for the pulse value factor Channel 9 Example If the pulse value factor is 10 then the following applies a for the pulse output 1 pulse 10 units e g 10 m depending on the selected unit b for the meter s display with pulse ratio factor 1 see Chapter 6 2 4 1 counter increment 10 units e g 10 m If the pulse output is scaled it must be ensured that the maximum frequency of the pulse output depending on the selected pulse width is not exceeded see Table 5 6 1 5 The smallest permissible pulse value factor Z is given by gt max Z Q max flow rate selected unit seconds f max max frequency of the scaled pulse output depending the selected pulse width see Table 5 6 1 5 Example 1 Q 400 m3 h 0 111 m3 s Pulse width 150 ms f max 3 Hz Z20 111 3 0 037 m thus a smallest pulse value of Z 0 1 can be selected i e 1 pulse 0 1 m Page 22 of 40 METRA Energie Messtechnik GmbH Vortex meter trikon Example 2
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