Operating instructions
Contents
1. 120 __ 110 L Lll J J lll l pu100 POO 2494 9 D E 100 m L jJ H E E E E HY E E E max pressure bar S S 4 g E E 4 1 class 600 d diii ilii Hf EN class 600 2 5 A a 111 ES L _ NS 89 6 fp 69 L LII LI L LI LI E LI Tid PN 70 d BEFA2. Output 4 20 mA Re Supply current circuit Li 2404H 30V Ci 16nF li 150 70 C 1000 mW EEx T6 BVS 07 033 Fig 4 7 Connection diagram for transducer MEM with current output Operating instructions RE 250 www mecon de page 19 36 10 2011 RE250 Electrical connections 4 2 3 Current output with digital outputs MEM type MEM 4 20 mA Hazardous area Safe area Supply current circuit Li 240uH Ui 30V 16 li 150 mA Transmitter power supply 70 C Pi 1000mw l EEx ia 1 T6 Angular sensor BVS 07 ATEX E 033 V Auxiliary power supply 3 Isolation amplifier O LA limit value Contacts according to Binary outputs gt MIN limit value V EP NAMUR Li 4pH Ui 30V Ci 16 nF li 20mA Ta 70 Pi EEx ia IIC 6 Auxiliary power supply 100mw BVS 07 ATEX E 033 Fig 4 8 Connection diagram for transducer MEM with 2 limit switches type MEM 4 20 mA Hazardous area Safe area Supply current circuit Li 240gH 30V 16nF li 150ma Transmitter power supply 70 C Pi 4000mw EEx ia IIC 8 Angular sensor BVS 07 ATEX E 033 V Auxiliary power supply Cy Isolation amplifier Pulse output Contacts according to Binary outputs MIN MAX
3. 0 I N O Q Q Q Q QA 6 Qo 120 not available Operating instructions RE 250 10 2011 Ol RE250 EN www mecon de page 13 36 Device description 2 4 3 Description code common part for all versions The description code consists of the following elements 0 1 2 3 AA CJ CL EA EL EJ FA FL FJ PA 0 UJ N E wno gt 9 6 14 36 Display unit Process temperature Standard aluminium Standard aluminium up to 200 for local display 150 for electric output with displaced display extension made of stainless steel Stainless steel 66 up to 150 Stainless steel 66 with displaced display Outputs With local display With local display 1 inductive contact 5 3 5N With local display 2 inductive contacts SJ 3 5N With local display electric remote sensor 4 20 mA With local display electric remote sensor 4 20 mA 2 inductive contacts SJ 3 5N With local display electric remote sensor 4 20 mA 1 inductive contact 1 pulse output With HART protocol 4 20mA With HART protocol 4 20mA 2 inductive contacts SJ 3 5N With HART protocol 1 inductive contact 1 pulse output With PROFIBUS PA interface Certification of accuracy Without calibrat
4. 9 LESE die RR 9 Z2 9 AS EE seit UU UU UU 10 Zoe EI TU TT 11 2 4 1 Individual part for versions CF S 11 2 4 2 Individual part for version 7424 0 42 2 2 2 2 13 2 4 3 Common part for all versions 2 2 0 2 14 3 Installation ______________________________________ 15 31 393 9 9 9 902 00 292999309 2 09022 59 0902 809992909 0 2 591 15 SNAM 15 33 92 t T TTL 15 3 3 1 Tightening 17 332 Magnetic MUGIS 17 4 Electrical connections 22022 18 4 1 gt 18 4 2 Electrical connections 18 PHI OLI EPOR ED EMO DEREN DEPT E 18 4 2 2 Current output bra trataba vw oic bein 19 4 2 3 Current output with digital outputs 20 2 3 Protection __________________ ____ ra 21 Oper
5. E E E E E E 60 50 40 30 LT _ L LIII LI ILLI LI LL ILL IL IL St as trois asa lle 12 7 Lj oT M M xr I 127 15 9 159 M _ Ss eee 5222522 222 222 2125251 dene __ 11 o LLL LL LII 50 0 50 100 150 200 250 300 Temperature Tab 7 1 Maximum Pressure PS vs temperature TS page 30 36 www mecon de Operating instructions RE 250 10 2011 RE250 EN 7 5 Dimensions and weights Standard version Housing of display made of aluminium DN 15 20 25 32 40 50 65 80 100 125 150 ANSI 3 1 114 2 3 4 5 6 All Dimensions mm inch Operating instructions RE 250 10 2011 OI RE250 EN 97 I D 26 26 32 32 46 70 70 102 125 125 125 1 02 1 02 1 26 1 26 1 81 2 76 2 76 4 02 4 92 4 92 4 92 WWW mecon de 74 74 77 77 88 97 97 113 126 126 126 Technical data 165 2 91 2 91 3 03 3 03 3 46 3 82 3 82 4 45 4 96 4 96 4 96 90 Weight 3 0 6 6 3 0 6 6 4 2 9 3 5 2 11 5 60 13 2 7 5 16 5 8 5 18 7 13 0 28 7
6. 250 Variable Area Flowmeter Operating instructions MECSN GmbH 10 2011 OI RE250 FLOW CONTROL SYSTEMS Imprint All rights reserved It is prohibited to reproduce this documentation or any part thereof without the prior written authorisation of MECON Flow Control Systems GmbH Subject to change without notice Copyright 2011 by Flow Control Systems GmbH R ntgenstra se 105 50169 Kerpen page 2 36 www mecon de Operating instructions RE 250 10 2011 Ol RE250 EN Contents Contents 1 Safety instructions LL LLL 5 UAM n ___ ________ _ ___ 5 5 ________ _____________ 6 1 3 Safety instructions from the manufacturer 2 22 2 2 2 2 72272 6 UMSONST 6 1 3 2 Product liability and 2 22 6 1 3 3 General INTONMMANOMN ptm 7 1 4 Safety instructions for the 2 722 2 7 2 Device description ______________________ 8 22d SCODE Ol ________________________ 8 22 ___________ ____ ___ 8 2 2 1 Display unit made of 2 2 2 8 2 2 2 Display unit made of stainless 5
7. 18 0 30977 22 0 48 4 25 0 55 0 weights in kg 105 page 31 36 Technical data Heating jacket version DN ANSI I D A B S Weight 15 va 26 1 02 74 2 91 110 4 33 150 5 91 4 7 10 4 20 ya 26 1 02 74 2 91 110 4 33 150 5 91 4 7 10 4 25 32 1 26 77 3 03 110 4 33 150 5 91 5 9 13 0 32 lw 32 1 26 77 3 03 110 4 33 150 5 91 6 9 15 2 40 qon 46 1 81 88 3 46 130 5 12 150 5 91 7 8 17 2 50 2 70 2 76 97 3 82 140 5 51 150 5 91 9 6 21 1 65 2 54 70 2 76 97 3 82 140 5 51 150 5 91 11 0 24 2 80 3 102 4 02 113 4 45 160 6 30 150 5 91 16 0 35 2 100 4 125 4 92 126 4 96 175 6 89 120 4 72 22 0 48 4 125 125 4 92 126 4 96 175 6 89 120 4 72 26 0 57 2 150 6 125 4 92 126 4 96 175 6 89 120 4 72 29 0 63 8 Dimensions mm inch weights kg 165 For dimension L please refer to page 33 page 32 36 www mecon de Operating instructions RE 250 10 2011 Ol RE250 EN Stainless steel version 250 DN 15 20 25 32 40 50 65 80 100 125 150 ANSI 3 1 54 IL er 2 2020 3 4 5 6 All Dimensions in mm inch Technical data 1 58 I D 26 1 02 26 1 02 32 1 26 32 1 26 46 1 81 70 2 76 70 2 76 102 4 02 125 4 92 125 4 92 125 4 92 dimension L please refer to page 33 Dimensi
8. no flow the pointer must be at the marked reference point first line on the scale When moving the float manually to the end position the pointer must be above the final value of the scale The flowmeter must be installed vertically flow direction from bottom to top For installation recommendations refer to guideline VDI VDE 3513 Part 3 The installation in the piping must be tension free therefore the piping must be positioned parallel and aligned to each other Avoid a corrosive atmosphere provide a ventilation where necessary Ensure a sufficient distance of at least 200 mm to magnet influencing parts like e g solenoid valves and ferromagnetic components e g steel brackets Observe a lateral distance of at least 300 mm between two next to one another mounted devices The distance can be reduced by mounting the devices staggered by the length of one device In case of doubt the influence can be tested by mo ving the instrument up and down ca 200 mm at a selected distance and check whether the position of the pointer in the display changes Specify the installation zone regarding a reliable reading of the displayed values and adequate space for servicing An inlet run upstream and an outlet run downstream the device is not necessary in the case of linear media flow profile In the case of highly asymmetric flow profiles however additional measures e g inlet tracks flow rectifiers with a length of at least 250 mm could be
9. 70 4 6 2 71 1 10 60 2 2 2 2 2 250 1 10 7 0 4 12 1 10 60 F 400 1 76 11 6 47 1 10 70 2 2 2 2 2 600 2 64 17 10 00 1 10 80 0 0 0 0 0 H 1000 4 40 30 17 66 1 10 2 0 2 2 2 1600 7 0 46 27 07 1 10 2 70 90 2 2 2 K 2500 11 0 70 41 20 1 10 2 100 50 2 2 L 4000 17 6 110 64 74 1 10 240 120 80 0 M 6000 26 4 170 100 0 1 10 180 90 2 10 000 44 0 290 170 7 1 10 0 2 0110 0 16 000 70 0 460 270 7 1 10 2 2 230 70 2 Q 20 000 88 0 550 323 7 1 10 230 70 R 25 000 110 0 700 412 0 1 10 500 100 S 40 000 176 0 1 100 647 4 1 10 0 0 0 350 120 T 50 000 220 0 1 350 794 6 1 10 2 2 2 350 120 U 60 000 264 0 1 700 1 000 1 10 0 0 0 0 360 V 80 000 352 0 2 400 1 413 1 10 2 2 2 2 100 000 440 0 3 000 1 766 1 10 0 0 0 600 2 0 page 12 36 devices for media with higher viscosity on request Measured medium Water n 1 mPa p 1 kg l Air T 0 0 bar n 0 0181 mPars 1 293 kg m Specify in plain text Float damping Without float damping With float damping WWW mecon de not available Operating instructions RE 250 10 2011 Ol RE250 EN 2 4 2 Individual part for version FF P PTFE liner The description code consists of the following elements 4 Q Flow tube A Nominal size flow tube DN 15 B Nominal size flow tube DN 25 Nominal size flow tube DN 40 D Nominal size flow tube DN
10. limit value pat NAMUR Li 44H Ui 30V Ci 16nF li 20mA 70 Pi EEx ia IIC T6 Auxiliary power supply 100 BVS 07 E 033 Fig 4 9 Connection diagram for transducer with limit switch and pulse output page 20 36 www mecon de Operating instructions RE 250 10 2011 Ol 250 Electrical connections 4 3 Protection class The realised protection class of the display unit made of aluminium is class 65 The version made of stainless steel will meet all requirements of protection class IP66 Caution Q After installation and any maintenance work on the device the operator has to check and ensure the specified protection class again Therefore pay regard to the following issues Mounting screws of the display unit must be tightened All gaskets display unit and cable glands have to be undamaged Broken gaskets have to be replaced The electrical cable glands must be free of any damage and tightened Broken cable glands have to be replaced Install the cables with a loop in front of the cable glands so that moisture does not get inside the display unit refer to Fig 4 5 Fig 4 10 Installing the cables in front of the cable glands loop Operating instructions RE 250 www mecon de page 21 36 10 2011 OI_RE250_EN Start up 5 Start up 5 1 Standard device When starting up the device the following points must be observed Ensure that
11. that the power is disconnected Observe all occupational safety regulations unconditionally It is essential to regard the voltage data on the nameplate 4 2 Electrical connections The display lid can be removed by loosen the four mounting screws at the front In sert the connection cable through the cable gland at the baseplate The RE250 is equipped with screw terminals 4 2 1 Limit switches Fig 4 1 Terminals one limit switch Fig 4 2 Terminals two limit switches Hazardous area Safe area Inductive contact Isolation amplifier Max limit value EN 60947 5 6 NAMUR Contact according to Auxiliary power supply Fig 4 3 Connection diagram for RE250 with one limit switch page 18 36 www mecon de Operating instructions RE 250 10 2011 Ol RE250 EN Electrical connections Hazardous area Safe area Inductive contact 5 3 5 Isolation amplifier Min limit value Max limit value EN 60947 5 6 Contacts according to NAMUR Auxiliary power supply Fig 4 4 Connection diagram for RE250 with two limit switches 4 2 2 Current output MEM Nicht belegt no 4 20 Schleife ameen C 24W PE 2 24 Fig 4 5 Terminals current output Fig 4 6 Terminals with add digital outputs Hazardous area Safe area Transmitter power supply Angular sensor type MEM
12. the Ex documentation RE250 with limit switch es Isolation 2 contacts 8 2 V DC Ri approx 1 RE250 with current output 4 20 mA Cable gland M20 x1 5 Auxiliary supply voltage Us 14 V 30 V DC 4 20 0 100 flow value in 2 wire technology 680 Q 30V Us 14V 22 mA Operating instructions RE 250 Wwww mecon de page 29 36 10 2011 Ol RE250 EN Technical data 7 4 Pressure limits vs temperature stainless steel 1 gt gt 55 ft S 160 E 1 4 LICET LII __ 54 111 __ 1111 6 E 150 LLL LL Qe 140 _ 3729 11 TR RR RR RR NR NR ft ff ET EI bg NI 1 1 1 1 130 izz NN
13. 0 DN50 DN150 DN15 DN150 DN15 DN150 DN 20 and DN 32 not available 6 27 6 y2 6 16 PN40 PN63 DN100 DN 15 DN150 DN15 DN150 1 5 6 16 _ 6 1 m 6 n Operating instructions RE 250 10 2011 OI RE250 EN WWW mecon de page 11 36 Device description 3 Process connections continued Threaded connection T Female thread T DIN ISO 228 N NPT ANSI B 1 20 1 Flow tube EN DINISO 228 ANSI B1 20 1 7 8 38 NPT 3 1 G 1 1 2 2 34 3 G1 NPT 1 4 1 5 61 1 12 6 2 2 available Heating sheath 0 Without 1 With flange connection DN15 DIN 2501 40 in stainless steel 2 With flange connection DN25 DIN 2501 40 in stainless steel 3 With flange connection 7 ANSI 16 5 150 in stainless steel 4 With flange connection 1 ANSI B16 5 150 in stainless steel 5 Maximum range values Measuring ranges Fluids Gases Ratio Pressure drop mbar h USgpm m h scfm A B C D E F 1 5 0 022 0 15 0 088 1 10 40 8 0 9 2 10 0 044 0 30 0 177 1 10 44 3 16 0 07 0 48 0 283 1 10 40 4 25 0 11 0 75 0 441 1 10 40 5 40 0 18 1 3 0 765 1 10 40 A 50 0 22 1 5 0 883 1 10 40 0 0 0 0 0 B 70 0 31 2 1 1 224 1 10 40 2 2 2 2 2 100 0 44 3 0 1 77 1 10 60 0 0 0 0 0 160 0
14. 50 E Nominal size flow tube DN 80 F Nominal size flow tube DN 100 3 Process connections EN1092 1 ANSI B16 5 Flow tube EN A B D E F 9 A DN 15 pod C DN 25 1 S DN 40 lys E F DN 50 2 H 80 100 4 PN 16 B1 EN 1092 1 DN 100 ne D PN 40 B1 EN 1092 1 DN15 DN100 5 150 Ibs ASME B16 5 pod 300 Ibs ASME 16 5 4 DE A 1 1092 1 16 40 9 Form ASME B16 5 4 5 Maximum range values Measuring ranges Fluids Gases Ratio Viscosity limits I USgpm m h mPars mPars A 100 0 44 3 0 1 77 1 10 lt 1 0 60 D 160 0 70 4 6 2 71 1 10 1 22 60 250 1 10 7 0 4 12 1 10 ls S 60 F 400 1 76 11 6 47 1 10 1 43 70 G 600 2 64 17 10 00 1 10 ES 80 H 1000 4 40 30 17 66 1 10 1 5 2 1600 7 0 46 27 07 1 10 5 K 2500 11 0 70 41 20 1 10 1 5 L 4000 17 6 110 64 74 1 10 155 8 M 6000 26 4 170 100 0 1 10 1 8 2 10 000 44 0 290 170 7 1 10 1258 P 16 000 70 0 460 270 7 1 10 1 10 Q 20 000 88 0 550 323 7 1 10 TEES R 25 000 110 0 700 412 0 1 10 1 10 2 5 40 000 176 0 1 100 647 4 1 10 T5 devices for media with higher viscosity on request 6 Measured medium 1 Water n 1 mPafs 1 kg l 2 Air 0 C pe 0 bar n 0 0181 mPafs p 1 293 kg m 3 Specify in plain text Device description Flow tube ANSI A B C D E F Pressure drop mbar B 60 60 60 70 80 60 70 100 Q Q Q Q OAA
15. Hastelloy PTFE Display unit Aluminium optional stainless steel with safety glass pane Operating conditions all devices Type CF S Type EF H Type FF P Max Medium temp TS 20 200 opt 80 300 20 125 Pressure refer to chapter 7 4 Type CF S Type EF H Type FF P Max Medium DN 15 pressure PS DN 150 PN 160 optional up to 400 bar PN 16 6 580 psi optional up to 5800 psi 232 psi Min operating pressure gt 2 x pressure loss see measuring ranges Climate classification Weatherproof and or non heated locations Class C in accordance with DIN IEC 654 Section 1 Protection class DI N EN 60529 Display unit made of aluminium IP65 made of stainless steel IP66 page 28 36 www mecon de Operating instructions RE 250 10 2011 Ol RE250 EN Technical data Temperatures Device version Ambient temperature Storage temperature rd without electrical components 40 80 40 176 40 80 40 176 with limit switch es 40 65 40 149 40 65 40 149 with 4 20 output 40 70 40 4158 40 70 40 4158 MPORTANT For applications in hazardous areas it is mandatory that the tempera ture class of the type examination certificate protection type will be regarded additionally For devices used in hazardous areas additional safety notes apply please refer to
16. Safety instructions 1 Safety instructions 1 1 Intended use The series RE250 of flowmeters with a standard length of 250 mm 9 84 inch and a completely metal design 15 suitable for measuring different liquids and gases in closed piping The robust design enables the operation in rough conditions also Different types of flanges liners and float materials satisfy the requirements of the pharmaceutical and chemical Industries The devices are particularly suitable for the measurement of Water e Fluids Corrosion protection agents Lubricants e Saturated and superheated steam Food and beverages ndustrial gases D Warning Solely the operator of these measuring devices is responsible for suitability intended use and corrosion resistance of the used materials It must be parti cularly ensured that the materials selected for the wetted parts of the flow meter are suitable for the used process media The manufacturer is not liable for any damage resulting from improper or unintended use of these devices No external loads may act upon the meter The flowmeters are primarily designed for static applications D Caution Hot surfaces resulting from hot process media Danger of burns resulting from surface temperatures above 70 C e Take appropriate protective measures for example contact protection e The design of the contact protection must ensure here that the maximum permis
17. TUVRheinland CERT ISO 9001 OI RE250 Subject to change without notice Copyright
18. appropriate to ensure the measuring accuracy Avoid the installation of unilaterally constricting fittings upstream of the device Ensure that the piping has been mounted securely to avoid vibration or oscillation of the devices The nominal width of the flowmeter and the connected piping must be identically Use connectors suitable for the particular device version dimension pressure stage Ensure that the clearance between the flanges of the piping corresponds to the device dimension additionally two gaskets Before connecting the device blow or flush out the pipes leding to the device The surface roughness of the flange sealing areas must be appropriate for the used gaskets The used gaskets and bolts of the prescribed dimensions must be appropriate for the operating pressure the temperature and the media Do not use carbon steel mounting brackets for the device Additionally for devices with PTFE liner Use gaskets which are conform to the inner and outer dimensions with the raised face of the flowmeter e Tighten the screws crosswise to ensure the tightness of the process connections page 16 36 For the tightening torques please refer to chapter 3 3 1 Tightening torques www mecon de Operating instructions RE 250 10 2011 Ol RE250 EN Installation e f the instrument is absolutely calibrated for a pressure exceeding 1 013 bar the valve is usually installed at the rear of the flowmeter at 1 013 bar abso
19. ating instructions RE 250 Wwww mecon de page 3 36 10 2011 Ol RE250 EN Contents 5 Start up ___________________________________________ 22 D L OVO aa ES eT ee pic MEE 22 5 2 Device with current 202 0 2 222 2 nnn 22 5 3 D vice With MCS CCS o5995951599999519 9999951999999 519 39999991 99999919 9999921 999999 999 9 23 6 Service 24 CA MANOA E ar r E 24 6 2 Replacing float 4 2 272 2 2 2 2 4 2 4 24 6 3 _ ________ ____ _ 6 _6_6_ _ 25 6 4 Returning the device to the 26 ncm 26 7 Technicaldata _____________________________ 27 7 1 Oberaung Principle ____________________ 27 Nope 27 FES VOCHMICA 28 7 4 Pressure limits vs 30 7 5 Dimensions 2 2 2 31 4 36 www mecon de Operating instructions RE 250 10 2011 Ol RE250 EN
20. cally the flow meters should be inspected for signs of corrosion mechanical wear as well as da mage to the fitting and the display unit We advice to carry out inspections at least once a year For a detailed inspection and cleaning the device must be removed from the piping D Caution 6 2 Replacing float damping Devices with measuring ring For devices with standard measuring ranges starting from 5 50 gases 0 15 1 5 m h the float damping can be replaced by the customer page 24 36 Remove the device from the piping Fix the device ensuring that the fitting will not be damaged The damping cylinder is fixed by retaining clamps Bend up these two clamps carefully using a suitable tool Move the damping cylinder a little bit to the bottom end of the fitting make a quarter turn and take the cylinder out of the fitting Insert the new damping cylinder into the fitting from the top slide it over the damping part of the float and arrange it into the retaining clamps Appropriate safety precautions have to be taken when removing the device Always use new gaskets when reinstalling the device in the piping 1 Float with damping 3 Self locking nut 4 Lower guide bracket 5 Retaining clamp 6 Damping cylinder Fig 6 1 Replacing float damping Fix the cylinder by bending the retaining clamps together Fit the device back into the piping www mecon de Operating instruct
21. ion certificate Certification of accuracy class 4 2 1 With calibration report 5 calibration points With calibration report 10 calibration points Leak pressure test Without leak pressure test Pressure test acc to EN 10204 with inspection certificate 3 1 Leak test acc to EN 10204 with inspection certificate 3 1 Pressure test leak test to EN 10204 with inspection certificates 3 1 Material certificates Without certificate Certificate of Compliance with the Order 2 1 according to DIN EN 10 204 Inspection certificate 3 1 with material analysis DIN EN 10204 2004 for wetted parts Cleaning to factory standard Without cleaning Cleaning class VA with marking free from oil and grease Cleaning class VA with marking free from oil grease and silicone Approvals Without Explosion protection mechanical approval ATEX BVS 06 ATEXII 2GDc Explosion protection mechanical and electrical MEM MEM PPA approval ATEXII2GExiallCT6 Marking Without marking Cardboard plate with a cable tie Stainless steel plate dimensions 40 x 20mm Cardboard plate with cable tie stainless steel plate dimensions 40 x 20 mm www mecon de Operating instructions RE 250 10 2011 Ol RE250 EN Installation 3 Installation 3 1 Notes on installation 3 2 Storage Information All instruments are carefully checked for functional capability before distribution On receipt of the device please carry out a visual inspec tio
22. ions RE 250 10 2011 OI RE250 EN Operating instructions RE 250 10 2011 OI RE250 EN 6 3 Replacing floats Devices with measuring ring For devices with standard measuring ranges starting from 5 50 gases 0 15 1 5 m h the replacement of the float can be provided by the customer e Remove the device from the piping e Fix the device ideally in a horizontal position ensuring that the fitting will not be damaged e Prevent the float from torsion by fixing the upper guide bracket C using a suitable tool Remove the self locking nut which fix the lower guide bracket N and take the guide bracket out of the fitting e Take the float out of the measuring unit upwards e Insert the new float into the fitting Service 0 v AA m yir C b C bw 7 1 Float 2 Upper guide bracket 3 Self locking nut d 4 Lower guide bracket C aet Fig 6 2 Replacing floats from the top While doing so put the bottom end of the float through the measuring ring carefully e Slip the lower guide bracket through the tread at the bottom end of the float and fix it with the self locking nut e Fit the device back into the piping D D I mportant Important Avoid damaging both float and measuring ring After the replacement of the float a recalibration of the flowmeter is highly recommended otherwise the measurement acc
23. le in any way for possible consequences of such changes 1 3 2 Product liability and warranty Mecon GmbH can assume no guarantee for repair work carried out by the customer without prior notification and consultation In case of complaint the rejected parts must be returned to us if no other arrangement has been made page 6 36 www mecon de Operating instructions RE 250 10 2011 Ol RE250 Safety instructions 1 3 3 General information This manual is intended for correct installation as well as operation and maintenance of the devices Read the instructions carefully before installing the device and put it into operation Specially designed or customised models and specialised applications are not included in this manual 1 4 Safety instructions for the operator Warning 1 Hot surfaces resulting from hot process media Danger of burns resulting from surface temperatures above 70 C e Take appropriate protective measures for example contact protection e The design of the contact protection must ensure here that the maximum permissible ambient temperature of the meter is not exceeded Caution 1 For devices used hazardous areas additional safety notes apply please refer to the Ex documentation Operating instructions RE 250 10 2011 OI RE250 EN Wwww mecon de page 7 36 Device description 2 Device description 2 1 Scope of delivery 1 Flowmeter RE250 2 Operating Instructions 3 Certificate
24. lute free emanation in front of the instrument Particularities for measuring gas flow e Valves have to be installed downstream of the device if gt 1 013 bar and upstream of the device if pap 1 013 bar free outflow usually e Install a throttle just downstream of the device to prevent compression oscillation during measurement e Ensure by means of design features that the operating pressure for the flowmeter corresponds to the reference pressure of the calibration to avoid erroneous measurements 3 3 1 Tightening torques The flange bolts for devices with PTFE liner may be tightened with the following torques acc guideline VDI VDE 3513 Process connection max torque EN1092 1 ANSI B16 5 Nm ftiibf 15 14 10 25 1 14 10 40 ToU 25 18 50 2 25 18 80 3 35 25 100 4 42 30 Tab 3 1 Tightening torques for devices with PTFE liner 3 3 2 Magnetic filters To prevent a malfunction of the flowmeter caused by a medium which contains ferromagnetic substances such as weld beads a magnetic filter should be mounted in flow direction upstream of the measuring instrument This kind of filter is also recommended if such particles cannot be avoided in standard operation Operating instructions RE 250 www mecon de page 17 36 10 2011 OI_RE250_EN Electrical connections 4 Electrical connections 4 1 Safety instructions Warning All work on the electrical connections may only be carried out by a specialist Ensure
25. ly will cause incorrect values but it s suitable for testing the unit Www mecon de Operating instructions RE 250 10 2011 Ol RE250 Start up 5 3 Device with limit switches The limit switches can be set over the entire measuring range by varying the position the limit pointers Important Unless otherwise desired by the customer the factory set value for the switching point is for version with one limit switch about 40 of URV and for devices with two limit switches about 20 80 of URV To set the limit switches at the desired position the following step have to be observed e Unloosen the two little fixing screws 2 before moving the pointer 1 e Move the pointer to the desired position e Tighten the screws to fix the pointer 90 100 80 90 40 Wistar 1 Limit pointer 30 20 2 2 Fixing screw D 1 I 20 V mPas 10 0 0 M 1 e 9 Fig 5 1 Adjustment of the switching point limit switch Important The applied limit switches SJ 3 5 N are normally closed contacts accor ding to NAMUR recommendation NE21 The desired switching function of the limit switch has to be realized by the relay contact of the exter nal isolation amplifier changeover contact Operating instructions RE 250 Wwww mecon de page 23 36 10 2011 Ol RE250 EN Service 6 Service 6 1 Maintenance The devices were built within the scope of low maintenance but periodi
26. n of the outer packing for damage or improper handling Please contact the carrier and your responsible sales field service if you should discover any defects such cases a description of the defect the type and the serial number of the device is needed Information Unpack the equipment with care to prevent damage Information All instruments are carefully checked for order conformity Please check the delivery for completeness using the packing list Please examine the flowmeter nameplate to verify that the device was built according to your order Particularly check devices with electrical components for the correct supply voltage Store the device in a dry and dust free place Keep away from direct sun and heat Avoid external load to the device The storage temperature range for standard devices with electrical components is about 40 70 C 40 158 F 3 3 Installation conditions Below the essential points concerning installation are described and have to be observed e Remove the transport securing device from the fitting e Verify prior to installation that the float slides smoothly in the fitting without canting or deadlocking The pointer must smoothly follow the float movement e Verify that accessories such as spring stop gas fluid damping are still correctly fixed the fitting Operating instructions RE 250 Wwww mecon de page 15 36 10 2011 250 Installation In the zero position
27. on will be 258mm for version with displaced display unit Operating instructions RE 250 10 2011 OI RE250 EN WWW mecon de 103 103 105 105 15 129 129 145 158 158 158 4 06 4 06 4 13 4 13 4 53 5 08 5 08 5 71 6 22 6 22 6 22 Weight Su 6 8 3 1 6 8 4 3 9 5 5 9 11 7 6 1 13 4 7 6 16 7 8 6 18 9 13 1 28 9 18 1 39 9 22 1 48 6 25 1 55 2 weights in kg Ibs page 33 36 Technical data Mounting dimension L Nom EN Nom ANSI Dia pN16 pN40 PN63 PN100 P 15016 300156 600 Ibs DN 15 0 250 0 250 yo 250 250 250 DN 20 0 250 0 250 250 250 250 25 0 250 0 250 1 250 250 250 32 0 250 0 250 1 250 250 250 40 0 250 0 250 1 250 250 250 50 250 250 300 2 250 250 300 DN 65 250 250 0 0 21 250 300 300 DN 80 250 250 3 250 300 300 DN 100 250 250 4 250 300 300 DN 125 250 300 2 5 250 300 DN 150 250 300 6 250 300 All Dimensions in mm not available Devices with threaded connection Mounting dimension L 300 mm page 34 36 www mecon de Operating instructions RE 250 10 2011 Ol RE250 EN Technical data Operating instructions RE 250 page 35 36 10 2011 Ol RE250 EN Mecon GmbH R ntgenstrafSe 105 D 50169 Kerpen Tel 49 0 2237 600 06 0 Fax 49 0 2237 600 06 20 Email customerservice mecon de Www mecon de
28. page 10 36 www mecon de Operating instructions RE 250 10 2011 Ol RE250 EN 2 4 Description code Device description 2 4 1 Individual part for versions CF S stainless steel and EF H Hastelloy The description code consists of the following elements 250 51 7 5 5 0 QO 3 OO B 40 511 2 443 4 45 1 Flow tube Nominal size flow tube DN 15 Nominal size flow tube DN 25 Nominal size flow tube DN 40 Nominal size flow tube DN 50 Nominal size flow tube DN 80 Nominal size flow tube DN 100 5 wetted parts stainless steel 2 Version 1 2 wetted parts Hastelloy 3 Process connections Flanges EN1092 1 ANSI B16 5 A DN 15 y B DN 20 3 4 DN 25 32 1 E DN 40 1 50 2 G DN 65 2 827 9 H DN 80 3 J DN 100 4 K DN 125 5 L DN 150 6 B PN 16 EN 1092 1 2 40 1092 1 E PN 63 EN 1092 1 100 1092 1 5 160 1092 1 H 150 Ibs ASME B16 5 J 300 Ibs ASME B16 5 K 600 Ibs ASME B16 5 A B1 EN 1092 1 B B2 EN 1092 1 E C Form D EN 1092 1 D Form C EN 1092 1 o G Form RF ASME B16 5 H Form FF ASME B16 5 Form ASME B16 5 Flow tube EN Flow tube ANSI A B C D E F A B C D E F o lt lt available reduced scale raised face DN65 DN150 DN15 DN15
29. s optional 4 Software optional Fig 2 1 Scope of delivery Information Please check the delivery for completeness using the packing list 2 2 Device versions 2 2 1 Display unit made of aluminium Fig 2 2 Standard device with display unit made of aluminium page 8 36 www mecon de Operating instructions RE 250 10 2011 OI RE250 EN Device description The measured value is indicated directly on the scale The equipment can be supplied with accessory electrical components and touch sensitive switches for process monitoring and control 2 2 2 Display unit made of stainless steel Fig 2 3 Standard device with display unit made of stainless steel For applications with the requirements of higher protection category or corrosion resistance the devices are available with a display unit made of stainless steel 2 2 3 Heating sheath Fig 2 4 Device with heating sheath For measuring points where a temperature drop is unacceptable the devices are available with an external heating sheath 2 2 4 Float damping A float damping is recommended Generally for measuring gases 9 Vibrations for the piping cannot be avoided Operating instructions RE 250 Wwww mecon de page 9 36 10 2011 Ol RE250 EN Device description It is also strongly recommended in the case of e applications where air bubbles in the medium cannot be avoided e predominating shock pre
30. se requirements which 6 5 Disposal Caution 1 Disposal of the devices has to be carried out in accordance with relevant legislation in your country page 26 36 www mecon de Operating instructions RE 250 10 2011 Ol RE250 EN Technical data 7 Technical data 7 1 Operating principle Like other devices of this series the variable area flowmeter RE250 operates on the principle of flotation The measuring unit consists of a metal tube with a measuring ring in which a float can move up and down The media is flowing upwards through the tube and raises the conical float Here the annular gap enlarges until the equilibrium between the buoyancy force the drag force Fs and the weight of the float has been reached The adjusted height of the float is directly proportional to the flowrate The movement of the float is transmitted via a magnet to a subsequent magnet in the display unit outside the measuring pipe Fig 7 1 Operating principle of the RE250 7 2 Classification Classification in accordance with the Pressure Equipment Directive PED 97 23 EC Process connection Admissible media Category EN1092 1 ANSI B16 5 DN 15 Gases and fluids of fluid group 1 Art 3 3 DN 20 Gases fluids of fluid group 1 Art 3 3 DN 25 182 Gases and fluids of fluid group 1 Art 3 3 DN 32 A4 Gases and fluids of fluid group 1 40 19 Gases and fluids of fluid group 1 DN 50 2 Gases and fluids of fl
31. sible ambient temperature of the meter is not exceeded Caution For devices used in hazardous areas additional safety notes apply please refer to the Ex documentation Operating instructions RE 250 Wwww mecon de page 5 36 10 2011 250 Safety instructions The flowmeter may only be operated within the pressure and voltage limits specified on the name plate Before replacing the flowmeters check that the unit is free of hazardous media and pressures 1 2 Certifications CE marking The manufacturer certifies for the device RE 250 the fulfilment of all statutory requirements of the following EC directives by applying the CE marking Pressure equipment directive 97 23 EC Low voltage directive 2006 95 EC e EMC directive 89 336 EEC NAMUR recommendation NE21 ATEX directive 94 9 EC Devices with electrical installations t Devices for use in hazardous areas 1 3 Safety instructions from the manufacturer 1 3 1 Disclaimer The manufacturer will not be liable for any damage using its product including but not limited to direct indirect incidental punitive and consequential damages Any product purchased from the manufacturer is warranted in accordance with the relevant product documentation and our Terms and Conditions of Sale The manufacturer reserves the right to revise the content of its documents including this disclaimer without prior notification and will not be liab
32. ssure in the piping e g due to rapid throttling or shut off e turbulences pulsations etc which could lead to vibrations to the flowmeter rapid pressure build up in the piping 2 3 Nameplate Important Please refer to the device nameplate to ensure that the device is built according to your order Check particularly for the correct supply voltage oo Kerpen FLOW CONTROL SYSTEMS RE 250 RE250x Xxxxx XXX XXX XXXXX XXXX XXXXXX XXX XXX Connection XXXXXXXXXXXXXXXXXXXX Material Do XXXXXXXXXX ___ 5 xx bar Pmax TS xx bar TS Medium xxx C Protection EN 60529 IP65 C 0035 49 9 PED xxx G1 L1 T max xx C 97 23 EG Germany 1 Device specific code number 2 Year Serial number Device specific serial number and the year it was built 3 Connection Connection type of the device 4 Material Material of the wetted parts 5 PS Maximum pressure of the medium 6 Pmax at TS Maximum pressure of the medium at temperature TS 7 TS Medium Maximum temperature of the medium Protection Protection class for the housing of display 9 MEM specification Electrical specifications of the output transducer MEM Category Category acc to Pressure Equipment directive PED e M Nameplate of the RE250
33. the actual operation conditions pressure temperature do not exceed the limits which are given on the nameplate of the device Avoid float impacts Therefore it is recommended to start up with a closed shut off valve and open it slowly Particularly the use of solenoid valves is not recommended When measuring liquids the pipes must be vent slowly to prevent shock pressure due to gas bubbles When measuring gases the pressure must be increased slowly in order to prevent high shock pressure During the start up of new systems residual materials are conveyed in the medi um and could adhere to the float In this case we recommend cleaning the instru ment after a relatively short period of operation When operating the flowmeter at low flowrates the device has to start up with a high flowrate to allow the float to level out This will ensure measurements within the specified accuracy class 5 2 Device with current output MEM The magneto electrical measuring transducer MEM is completely factory set when it is delivered to the customer After applying the supply voltage to the device initially the current output will be about 3 5 mA to 4 mA for a few seconds After that a current corresponding to the pointer deflection will flow page 22 36 Important Due to the influence of the float magnet the MEM transmitter will only output the correct current if the pointer position is caused by the float Turning the pointer manual
34. uid group 1 65 2 v Gases and fluids of fluid group 1 80 3 Gases and fluids of fluid group 1 100 4 Gases fluids of fluid group 1 DN 125 5 Gases and fluids of fluid group 1 DN 150 6 Gases and fluids of fluid group 1 Tab 7 1 Classification in accordance with PED 97 23 EC Operating instructions RE 250 www mecon de page 27 36 10 2011 250 Technical data 7 3 Technical data General data Range of application Flow measurement of liquids and gases Measuring principle Flotation Float measuring Vertical flow direction from bottom to top Measuring accuracy VDI VDE 3513 sheet 2 50 G 1 6 add 0 26 of URV for MEM MEM PPA 2 5 add 0 296 of URV for MEM 0 596 of URV add 0 196 of URV for MEM MEM PPA A variation of the operating temperature to the considered temperature for the calibration process will lead to a corresponding inherent error For ambient temperatures 20 C the measuring error will increase Materials 5 Wetted parts Stainless steel Hastelloy PTFE Flange lt DN25 1 Hastelloy Stainless steel Stainless steel gt DN25 1 Hastelloy stainless 1 1 Fitting lt DN25 Hastelloy Stainless steel Stainless steel gt DN25 1 Hastelloy stainless with PTFE liner Float Guide bracket Stainless steel
35. uracy can t be ensured Devices with cone e Replacing floats for devices with cone standard measuring ranges up to 5 50 I h gases 0 15 1 5 m h cannot be provided by the customer For this purpose the device has to be returned to the manufacturer For details please refer to chapter 6 4 Returning the device to the manufacturer WWW mecon de page 25 36 Service 6 4 Returning the device to the manufacturer This device has been carefully manufactured and tested Should you nevertheless need to return a device to MECON GmbH please observe the following points Caution According to the actual waste disposal directives the owner customer is responsible for the waste management of hazardous and toxic waste For reasons of environmental protection and safeguarding the health and safety of our personnel all devices sent to MECON GmbH to be repaired must be free of toxic and hazardous substances This also applies to cavities of the devices necessary the customer is kindly requested to neutralize or rinse the devices before returning to MECON The customer has to confirm this by filling in an appropriate form which is available for download on the MECON website www mecon de en declaration contamination pdf Caution contain hazardous and toxic substances Mecon GmbH is entitled to dispose these substances at the cost of the customer without any further inquiries D In the case of returning devices despite the
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