Mounting and Operating Instructions EB 9527-3
Contents
1. 3 yP FRAM 10 L SI 2 1 1 SHINS 1 4 1 dE AS 15 15 dp cell 4s SANE 13 NE Mi 1 2 M 1 5 N 1 2 AGIS 3 i 4 Valve block gt lt F with pres sure gauge pre s rd E 7 D Ni rc i P2 Pi 9 77 7 7 77 m ES 10 Fig 1 Functional diagram pulse output in Media 6 Z Ap Min max alarm A2 or Serial interface dp cell Measuring diaphragm Measuring springs Lever Elastic disc Diaphragm axis Travel sensor Microprocessor Memory Keys DIP switches Indicating unit with LCD Limit switch external pulse output D A converter Serial interface 9527 3tN 9 Design and principle of operation 1 1 Technical data Table 2 Technical data Differential pressure meter Measurina rane mbar 0 to 0 to 0 to Oto Oto Oto 0 to 0 to 0 to g rang 100 160 250 400 600 10001 16001 25001 3600 Adjustable span in mbar Class 1 0 from lt 250 400 lt 600 lt 1000 lt 1600 lt 2500 lt 3600 Zu to gt 125 gt 100 gt 150 gt 250 gt 320 5500 gt 720 from 100 160 125 100 150 250 Class 1 6 to gt 60 gt 60 gt 50 gt 80 gt 120 gt 200 from lt 60 lt 60 Class 2 5 352 532 Nominal p2. PA 2 08 200 vl 2 04 2 07 51 2 09 202 91 juarquip o qissiuuodq ssop eu si queiqui ejqissiuued pup USAM eu snopaozoy uou pasn aq ay pepee xe jou eo J jo sen pA ay pap no d spna A porsuruqur paiya 0 pepeuuoo jomu D 51 1349W 1155944 900S VIGAW IPPOW 941 spinbi 20 59506 Jo eunsseud eui pub 10 sates 94055944 900S VIEW POW eut jusuidinb3 jo uoudppseg ci VZOZ X31V 00 ON 31V21311332 NOILVNIWVX3 23 0 e npay gt s eu urag pun Bremypsunoig 81d Meisupsepung eupsiue1 usippoyrrs amp qd Bremupsundag 91185 4 001 9sj psspung ijpisupsepung supsiuupa 1 upsipotis ud ijpisupsopung otpsiuupo psiipyis tig ay Jo jpaosddo seBupup sppipg popnpui soBupu pup 4 eq juo Aou 9103114109
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4. 5 ile E pvp L 5 AL 11 25 5 Pressure gauge 43 depending on 80 manufacturer Pressure gauge connections ZER For NG 100 pressure gauge B LH male thread with G coupling II sleeve acc to DIN 16283 and 12x2 O ring A Ne For NG 63 pressure gauge e G female thread with sealing ring Two 8 5 mm bores for attachment to valve block Two 8 5 mm bores for attachment to valve block Fig 9 Dimensions 9527 3 35 9005 9244 Biomuosuneig 91185 00L oojesapung yeisuesopung isuosopung eupstue upsyoxtsKug ay Jorcuddo soud ay nbas Joys so unyp spo papnpur ejnpatps lt Aun sii aq Kot ajporjiie uonounuox 53 s pes eanipu is inoug ed 33 JoAawsuupyor Buy pes e1njouBis Jop o 49 0002 9unr 62 Biemupsunbug zjnupssuoiso dx3 ejeissBunieriyiuez 9151 91 33 021 3 1245 jueuidinbe y Bupjsow ay ZL eui apnp g L d pun 4 pisupsopung ousiuupa1 uosipppsAud 20 9005 9294 Biomuosuneig 9118 0 001 ieisuesepun
5. state tank identifier Tank content Factor 4 Of 60 08880888 o Samt o m o V eh kg L ff Ibs h min II TEST SWITCHES 0 00 SS 1 2 GAS SELECTION N ee PROTECTI HH DIP switches Down key Up key Arrow key Fig 10 Housing of indicating unit display with operating elements cover opened Alarm A2 blinks UCW blinks Depending on display mode Tank content MCN SCN differen tial pressure and error code Units for level and flow rate Tank capacity SCN Test connection SAMSON AG MESS UND REGELTECHNIK Weism llerstra e 3 60314 Frankfurt am Main Germany Phone 49 69 4009 0 Fax 49 69 4009 1507 Internet http www samson de EB 9527 3 EN S Z 2013 12
6. 14 Orifice plate assembly 14 P Pressure gauge 15 Pressure gauge connections 35 Pulse 18 S Safety 5 Sensitivity 0 0 0 ee eee eee 10 Serial 17 34 Shut off and equalizing valves 16 Shut off 15 Software limit switches 18 19 AN NIT TEE 27 Span 33 Span protection 24 Span checking 26 cei eas oh amie ae 22 23 Storage temperature 11 Switching accuracy 10 T Tank capacity 43 Tank data 26 Tank identifier 43 Technical data 10 Test connection 15 43 Troubleshooting 32 33 TROVIS VIEW 8 30 31 32 Two wire connection 18 Index U Ue EET 27 Unis iss DERE coke S E OA 43 Up KO ee ern e A3 V Valve block 15 22 W Write 24 Z Zero checking 25 9527 3 41 42 EB 9527 3 EN Display with operating elements Alarm A1 blinks Units for pressure Serial interface Tank identifier Display mode Gas code and operating
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8. measurement 22 Draining wa RUN BSS ce en 23 Adj stment lt s s so xk RRO 24 Write protection 2 les 24 Seledinggastype so cs ae e rs TEEN Eaa 24 Checking zero 25 Checking the measuring range span 26 Setting the limit switches 22222 aa ee 27 Max filling limit during operation 27 Alarm contacts and A2 28 Switching LOD 6 4 scs bd hw ww we wx Y Xo o xxx 28 Ammeter function s 28 6 8 7 7 2 9 1 9 2 10 Contents Battery operation 29 Communication using the memory 30 Exchanging data using the memory pen 30 Communication 31 Troubleshooting 32 Servicing explosion protected devices 33 Firmware update 34 Maintenance calibration and work on equipment 34 5 35 Testcerhificdles u aan RS ORO 36 Index isse oso Sea RR wen 40 9527 3EN 3 Signal words Signal words used in these Mounting and Operating Instructions Bold print indicates sections that require par ticular attention Bold print also indicates information and in structions rela
9. again to ESM mode 30 seconds after the meter is operated Adjustment supply voltage lower than 6 6 V causes LOWBAT and the measured reading to be displayed Local operation Deactivate write protection by setting switch 4 to position OFF Press and hold key until after approx 8 s UCW is shown at the top of the dis play Press or to switch to BAT MODE Press key to confirm selection Press or key to select ON 1 or OFF 0 Press key to confirm setting Rectivate write protection by setting switch 4 to position ON EB 9527 3 29 Communication using the memory pen 7 Communication using the memory pen WARNING When exchanging data in hazardous areas only the intrinsically safe SAMSON memory pen may be used for connection to the serial interface 7 1 Exchanging data using the memory pen As a handy storage device the memory pen allows standardized data records corre sponding to the tank type and associated gas data to be transferred to Media 6 devices on site without requiring a PC notebook PC sim ply by plugging the pen into the serial RS 232 interface A label tag can be attached to the memory pen for identification The user specific data are transferred to the memory pen either using the TROVIS VIEW Configuration and Operator Interface and a PC notebook PC see EB 9527 2 EN or cop ied from a configured Media 6 device Depending on the status set in TROVIS VI
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11. OX mbar are displayed Current signal indicates current value in mA Press key to calibrate zero Release key Display shows O mbar current signal 4 mA Adjustment Reactivate write protection by setting switch 4 to position ON Correction when tank is filled Zero can also be checked while the system is running provided the differential pressure lines are equipped with shut off and equaliz ing valves To do so move the valve block or equalizing valve to test position balancing the pressures in both measuring chambers 1 Close shut off valve in high pressure line 2 Open equalizing valve or bypass of valve block 3 Close shut off valve in low pressure line Valve block is in test position now Deactivate write protection by setting switch 4 to position OFF Press and hold key until ZERO and X X mbar are displayed Current signal indicates current value in mA Press key to calibrate zero Release key Display shows O mbar current signal 4 mA corresponding to filling level at O mbar differential pressure see also note on the left on gas column correction Reactivate write protection by setting switch 4 to position ON Put valve block or equalizing valve back into operating position Open shut off valve in low pressure line N Close equalizing valve Co Open shut off valve in high pressure line 9527 3 25 Adjustment WARNING For devices in oxyge
12. are to be set and con firmed separately Deactivate write protection by setting switch 4 to position OFF Press and hold key until after approx 8 s UCW is shown at the top of the dis play Press or to switch between con tacts Al and A2 Press key to confirm contact selection Press key to reduce value in steps of 1 or Press key to increase it Press key to confirm adjusted value Press key again and hold it until after approx 8 s UCW is shown at the top of the display Press or to switch to the second con tact Confirm selection and set alarm contact as described above Reactivate write protection by setting switch 4 to position ON 28 EB 9527 3 EN 6 6 Switching LCD ON OFF The LCD can be switched ON and OFF Press and hold and keys until after approx 3 s the LCD is either switched ON or OFF 6 7 Ammeter function Note The ammeter function is not available while the meter is running on batteries To check the function of connected devices an output signal of 4 or 20 mA or 22 8 mA can be adjusted for a short period regardless of the current filling level in the tank Deactivate write protection by setting switch 4 to position OFF 4 mA ammeter Press and hold key Press key within 8 s and hold it as well Output signal 4 0 mA Release key to switch the signal be tween 4 0 mA and 22 8 mA Release key Current signal returns to indicatin
13. capacity SCN Save Capacity Nominal capacity up to overflow 5 Determined flow rate is as follows Q Difference of counts within reading period x Q Pulses h Tee 6 Battery operation is only possible with liquid level measurement and liquid level measurement in transportation vehicle 9527 3 11 Installation WARNING Media 6 is not approved for measuring flammable gases and liquids in Zone 0 Devices intended to measure gaseous oxygen are labeled Oxygen Keep free of oil and grease Sauerstoff Oxygen Oxygene 4 The manvfacturer has cleaned and assembled all devices for oxygen service under special con ditions When replacing parts that come into contact with gaseous oxygen e g measuring springs wear appropriate gloves and make sure that the parts do not get into contact with oil or grease When returning devices for oxygen service for repair the sender assumes full responsi bility that the devices are handled to meet all requirements stipulated by VBG 62 or similar reg ulations until they are handed over to the manufacturer Otherwise SAMSON AG does not ac cept any responsibility 2 Installation 2 1 Arrangement of devices for liquid level measurement Schematic drawings 1 to 3 see Fig 2 In arrangements as illustrated by schematic drawing 2 the additional height z influences the measurement As a result the height must be as low as possible No restriction
14. confirm your selection The new gas code as well as the display are activated Note In operating modes Flow rate Differential pressure and Counting flow rate Me dia 6 2 only one gas or medium code is available 6 3 Checking zero To check zero at atmospheric pressure make sure that the pressures in both measuring chambers are identical This means that with a differential pressure of Ap O mbar the current signal at connector A or at the TEST terminals must be 4 mA see test arrange ment Fig 8 WARNING In hazardous areas use an ammeter ap proved in accordance with ATEX to measure the current at the test connection TEST Note When gas column correction is selected see also EB 9527 2 EN section Gas data ob serve that the gas columns in the measuring lines reduce the differential pressure because they act in the opposite direction When the pressures are identical Ap O mbar Me dia 6 indicates a negative value for the con tent The value of the output signal is lt 4 mA In this case readjust zero as described below so that the display shows 0 0000 at Ap 0 mbar The value of the output signal will change but remain below 4 mA due to the adjusted gas column correction At Ap 0 mbar the display must indicate 0 i e 0000 Correction when tank is empty Deactivate write protection by setting switch 4 to position OFF Press and hold key until ZERO and X
15. drawing 1 Schematic drawing 2 Schematic drawing 3 Measurements in cryogenic Measurements on pressure Measurements on open vessels systems liquefied gases vessels with condensing or with low lying meter non condensing cushion Flow rate measurement Measuring liquids Measuring steam Measuring gases Orifice plate assembly Equalizing tank Separation chamber Installation Standard Reverse Standard Standard Reverse 1 SAMSON valve blocks can be installed above the dp cell to match connections to and to Fig 2 Arrangement of devices 9527 3 EN 13 Installation At the place of installation mount the meter to a pipe wall or mounting plate ensuring that it is free of vibration Use the fastening element with clamp for mounting to vertical or horizontal pipes For wall mounting use the fastening element without clamp A mounting bracket see di mensional drawing on page 35 is required for panel mounting 2 3 Differential pressure lines Install the differential pressure lines pipes with 12 mm outside as illustrated in Fig 3 Observe the proper arrangement Use ap propriate screw fittings to ensure that the lines do not leak Install line sections which would usually run horizontally with a constant downward slope of at least 1 20 starting the slope either at the orifice plate or at the point where venting is possible The smallest permissible bending radius is 50 mm Thoroughly fl
16. have direct contact with the measuring diaphragm of the device As a result screw off the differential pressure lines below the shut off valves or valve block and fill the device with water Al ternatively make sure the shut off and equal izing valves or valve block are shut off and wait approx 20 min after the system was started up steam in system until condensate has collected in the differential pressure lines above the valve and up to the orifice plate Slowly open high pressure line 2 Close equalizing valve or bypass of the valve block 3 Open low pressure line 4 Wait a little Open both vent screws of the dp cell one after the other until the escaping condensate is bubble free Retighten the screws Vent the equalizing tanks in the same way Slightly tapping the housing of the indicating unit or the equalizing tanks helps the air escape 5 Check zero see section 6 3 and put the device back into operation Note When using reverse installation i e with the meter mounted above the measuring point the differential pressure lines may partly get drained when depressurizing the system When starting up the system again vent the arranged measuring system allowing it to fill with condensate When measuring liquids 1 Open high pressure line by slow turning 2 Close equalizing valve or bypass of the valve block 3 Open low pressure line Loosen vent screw on the dp cell and retighte
17. is used only in areas where the operating pressure and temperatures do not exceed the operating values that are based on the sizing data submitted in the order The Media 6 Differential Pressure Meter is not approved for measuring flammable gases and liquids in Zone 0 Proper shipping and storage are assumed Note Devices with a CE marking fulfil the requirements of Directives 94 9 EC and 2004 108 EC The declaration of conformity is available on request WARNING Oxygen service The dp cell must only come into contact with gaseous oxygen when the device is used for oxygen service It is also important to ensure that all SAMSON accessories e g valve block only come into contact with gaseous oxygen 9527 3 5 Firmware changes Table 1 Firmware versions Changes of the device s firmware compared to previous version Old New A 2 03 B 2 03 A 2 10 B 2 10 Limit switches Limit switches Al and A2 are preset by the software to function as either min or max alarms They can be configured separately using the keys Filling limit during Filling limit during operation can be adjusted on the operating keys re operation UCW gardless of the limit switches A 2 10 B 2 10 A 2 11 B 2 11 Error code Current output of Media 6 is set to lt 3 6 mA A2 11 B2 11 V3 02 LCD Use the and Q keys to switch the LCD on or off LCD ON or LCD OFF Gas and medium code Gas and
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19. pressure lines 14 Differential pressure measurement 21 Dimensions 35 DIN 43650 device connector 18 DIP switches 20 per iod 10 Display elements 20 40 EB 9527 3 EN Display 43 Down 43 dp cell ccs wowed em o eee 8 E EC type exam certificate 38 39 40 41 Electrical connection 17 18 19 Equalizing valve 15 ERROR eese Se ood 32 Error codes 32 43 Explosion 34 F Filling limit during operation 27 Flow rate measurement 12 13 15 22 G Gdscode 24 Gas esee center eie 26 RC 24 Hazardous 17 25 34 Hysteresis 10 Indicating UNE 8 11 43 Installation 12 13 14 15 16 Interface 8 L CD ise ee aaa 8 E gem MP TULIT 27 Limit switches 22222222222 10 27 Liquid level measurement 12 13 15 22 M Measuring diaphragm 11 Measuring range 27 Measuring range checking 26 Measuring springs 11 Memory perds an 8 Memory pen 8 17 30 34 N Nominal pressure 10 Operating elements 20 43 Orifice flange Type 90
20. the accident prevention regulations of the employers liability insurance The following regulations apply for installation in hazardous areas EN 60079 14 2008 VDE 0165 Part 1 Explosive atmospheres Part 14 Electrical installations design selection and erection and EN 50281 1 2 VDE 0165 Part 2 1999 Electrical apparatus for use in the presence of combustible dust For intrinsically safe electrical equipment approved in accordance with Directive 79 1 96 EEC the data specified in the certificate of conformity ap ply for the connection of intrinsically safe circuits For intrinsically safe electrical equipment approved in accordance with Directive 94 9 EC the data specified in the EC type examination certificate apply for the connection of intrinsically safe circuits WARNING The terminal assignment specified in the certificate must be adhered to Switching the assignment of the electrical terminals may cause the explosion protection to become ineffective Do not loosen enameled screws in or on the housing In hazardous areas use only meters approved in accordance with ATEX to check the current on the test connection Test see Fig 10 The serial interface see Fig 10 is not approved for use in hazardous areas As a result use only the intrinsically safe SAMSON memory pen to transfer data Note on the selection of cables and wires To run several intrinsically safe circuits in one multi core cable observe claus
21. using a special memory pen or a ca ble connection to a PC The user specific data are saved in the mem ory FRAM 4 until they are overwritten again Data can also be backed up As a re sult the operating data can easily be ex changed on site between Media 6 and the memory pen and vice versa The memory pen can be programmed using a PC and SAMSON s TROVIS VIEW software The operating data allow the differential pres sure to be converted into values proportional to the tank capacity or flow rate 2 these val ves are displayed or issued as a 4 to 20 mA DC signal Using the DIP switches 6 four saved gas types and different write protection functions for saved data can be selected Three operating keys 5 are used to adjust different operating functions zero and span adjustment filling limit during operation limit switch and test function settings etc as well as set different operating states load or save operating values 1 Only for liquid level measurement 2 Count pulses in Media 6 Z Design and principle of operation Indicating unit with LCD uro NM L 1 9 8 Connector A Up 12V to 36 V DC la 4 to 20 mA Min max alarm A1 Connector B
22. 4 to 20 mA output Permissible load Rg in Ohm _Us 12V B 0 020 Output circuit Intrinsic safety according to PTB 00 ATEX 2074 see certificates Supply voltage Ug for two wire transmitter 12 to 28 V DC in combination with intrinsically safe power circuit only 12 to 36 V DC Permissible ambient temperature T6 20 to 60 C 40 C to 70 C 15 20 to 70 C Permissible storage temperature 40 C to 80 Battery operation 9 Supply voltage 9 V DC six 1 5 V LR6 alkaline batteries Use of Media 6 with gaseous oxygen max temperature 60 C max oxygen pressure 30 bar Degree of protection DIN VDE 0470 IP 65 Weight Approx 3 kg without valve block Approx 5 kg with valve block Materials Housing CW617N brass or CrNi steel Measuring diaphragm and seals ECO NBR FPM EPDM Measuring springs Diaphragm discs and functional parts CrNi steel Lever Indicating unit Polycarbonate All pressures as gauge pressures All errors and deviations in of adjusted span 1 Class accuracy of 0 6 can be assumed in measuring ranges 1000 1600 2500 and 3600 mbar for spans of lt 100 to gt 50 of the nominal range 2 values remain below this span the class accuracy of Class 2 5 may be exceeded 3 Media 6 Z is equipped with one software switch A1 according to EN 60947 5 6 and one pulse output 4 MCN Max Capacity Nominal max tank
23. Differential Pressure Meters Media 6 Media 6Z Media 6 with attached valve block Mounting and Operating Instructions EB 9527 3 EN Firmware V3 10 Edition December 2013 Contents Contents 1 1 1 2 2 1 2 1 1 2 2 2 3 24 24 1 2 4 2 2 4 3 2 4 4 2 4 5 3 1 4 1 4 1 1 5 1 5 2 6 1 6 2 6 3 6 4 6 5 6 5 1 6 5 2 6 6 6 7 2 9527 3 EN Design and principle of operation 8 Technical dolor s s bed Eod UE bao 8 SSS 10 Installation u 0 RES 00a EE 39 PORRO 12 Arrangement of devices for liquid level measurement 12 Arrangement of devices for flow rate measurement 12 Media 6 indicating unit 12 Differential pressure llle 14 Orifice plate 14 Accessories s 2 15 C 15 Shut off and equalizing valves 16 Equdlizing tankss 0 2 2a ne RS 16 Accessories for 16 17 Connectors amp 3 59 x xu wv x ROC ae 18 sos s Seah ege SS SE 20 Display and operating elements 20 Switching display mode 21 StarFUps xoxo EU E OR S Rm eS 22 liquid level measurement 2 2 0 eee ee 22 Flow
24. EW the memory pen can be used to read and write read only or write only see Table 5 Table 5 Memory pen status Note Memory pens with data records or existing configurations for previous Media 6 versions up firmware version 2 11 are fully compatible with Media 6 devices with firm ware version V3 00 and higher Such records or configurations do not need to be loaded into TROVIS VIEW for conversion any longer Exchanging data between Media 6 and the memory pen read and write status Plug memory pen into serial interface MEMWR is indicated at the top of the display Press or to switch between MEMWR write data from Media 6 to the memory pen and MEMRD read data from the memory pen into Media 6 For MEMRD Deactivate write protection by setting switch 4 to position OFF Press key to activate selection Display shows RUN Data have been saved when DONE is displayed Memory pen can now be removed For MEMRD Reactivate write protection by setting switch 4 to position ON Memory pen Display Process status Read MEMRD Read data from the memory pen into Media 6 and or or write MEMWR Write data from Media 6 to the memory pen Read only MEMRD Read data from the memory pen into Media 6 Write only MEMWR Write data from Media 6 to the memory pen 30 9527 3 EN Transfer data from the memory pen to Media 6 read only status Deactivate write protection by setting switc
25. IP switches to select the gas type and write protection functions also see page 24 are included Further details on the display and operating elements can be found on page 43 20 EB 9527 3 EN 4 1 1 Switching display mode Operation Depending on the operating mode each pressing of the key allows you to switch between the standard display and up to eight other parameters After eight seconds or after the marquee has finished scrolling the display automatically returns to the default display GKZ AP MCN MCN R SCN SCN R UCW AP100 APO PTANK TKZ FLOW ERROR OFF LOWBAT Standard mode e g gas code and current tank content Current differential pressure Max capacity nominal max tank capacity 100 tank volume or max possible flow rate set to 20 mA signal Save capacity nominal Geometric tank volume up to overflow gauge pipe 100 tank volume set to 20 mA signal Usable capacity work filling level during operation Max differential pressure Min differential pressure Nominal tank pressure Value corresponds to the pressure assigned to the density liq uid according to the vapor pressure graph If MCN and SCN are calculated on the ba sis of 1 bar 1 bar is displayed for PTANK Tank identifier Flow rate Error code automatically displayed when an error occurs see section 8 Special signal when opening the equalizing valve 3 6 mA Special signal while in battery mode Tabl
26. UR on switching amplifier according to EN 60947 5 6 Maximum values U 20V li260mA 250 mW 53nF 8 pH Media 6 Z includes only one software limit switch Alarm 1 and one pulse output at po sition Alarm 2 contacts 3 and 4 which is proportional to the tank capacity to control an external counter Test connection see also section 9 Connect an ammeter to the test terminals and to test the output signal during calibra tion While doing so the output signal of the two wire circuit is not interrupted Make sure the ammeter provides a load of lt 0 4 V DC for the test connection Supply unit Zi Connector A Two wire connection for standardized 4 to 20 mA signal and supply voltage Network 2 Limit switches with switching amplifier Cable socket Order no 8831 0503 Sockets for 8 to 10 mm cable Min max A1 1 2 LA Connector B Two software limit switches or one software limit switch D and one pulse output in Media 6 Z 3 J L Cable socket 1 Lr Order no 8831 0500 Min max A2 Fig 6 Terminal assignment of DIN 43650 device connectors form A 18 EB 9527 3 EN Electrical connection CAUTION Degree of protection IP 65 becomes ineffective when the cable socket is removed from the de vice connector Protect the device connector against
27. alves for flow rate measurement 9527 3 15 Installation 2 4 3 Shut off and equalizing valves As an alternative to the SAMSON valve block the two shut of valves as well as the by pass valve equalizing valve can also be in stalled as illustrated in Fig 5 2 4 4 Equalizing tanks Equalizing tanks that establish a constant liq uid column are required when measuring steam When measuring liquids they are only needed when the indicating unit is mounted above the measuring point For gas measurements they are required as chambers for condensate separation when the indicating unit is installed below the mea suring point 2 4 5 Accessories for connection The meters are delivered without screw fit tings oxygen versions are protected against contamination by four NBR blanking plugs Required screw fittings sealing or vent screws as well as screw joints with restrictions to dampen medium induced vibration particu larly for measuring gases must be ordered separately Note The screw fittings and SAMSON valve blocks with their associated order numbers are listed in Data Sheet T 9555 EN 16 EB 9527 3 EN 3 Electrical connection Electrical connection A f DANGER For electrical installation you are required to observe the relevant electrotechnical regulations and the accident prevention regulations that ap ply in the country of use In Germany these are the VDE regulations and
28. cision regulator to apply a test pressure corresponding to the max differ ential pressure Ap100 while monitoring the pressure gauge Adjustment Press and hold key until display shows currently measured value Current signal indicates current value in mA Press key to calibrate the span Current signal becomes 20 mA display corre sponds to Ap100 Release key Reactivate write and span protection by setting switch 4 and switch 3 to position ON 6 5 Setting the limit switches 6 5 1 Max filling limit during oper ation Note The filling limit during operation preset by the software can be modified only in filling level mode using the operating keys UCW marker Deactivate write protection by setting switch 4 to position OFF Press and hold amp key until after approx 8 s UCWis shown atthe top and the asso ciated value in at the bottom of the dis play Press key to confirm display Press key to reduce value in steps of 1 or Press D key to increase it Press key to confirm adjusted value Reactivate write protection by setting switch 4 to position ON EB 9527 3 27 Adjustment 6 5 2 Alarm contacts Al and A2 Alarm A1 and A2 markers Note In counting flow rate mode Media 6 2 only alarm A1 is available Both limit switches are preset by the software to function as either min or max alarms The display shows AIMIN 2 or A2MAX Both contacts
29. ct the differential pressure meter as illustrated in Fig 5 Note When checking the span it is recommend able to activate the gas with the highest den sity The values for gases with a lower density are calibrated during this process as well Note To calibrate the currently used gas its display value must be at least 85 of the adjusted up per measuring range value Ap100 Calibration of the span is subject to particular protection switch 3 to prevent the span from being changed unintentionally due to im proper operation of the keys Checking the measuring range span When the key is pressed five times in dis play mode the value for the max differential pressure Ap100 is indicated Check zero as described in section 6 3 Press key five times Display shows Ap 100 X XXX x1000 mbar Use a precision regulator to apply a test pressure corresponding to the max differ ential pressure Ap100 while monitoring the pressure gauge Set points Ap mbar 4 mA see also note on gas column correction on page 25 Ap100 XXXX mbar 20 mA When display and output signal do not match the indicated Ap100 value readjust the up per range value span Adjusting the measuring range span Check zero as described in section 6 3 Deactivate write and span protection by setting both switch 4 and switch 3 to posi tion OFF Press key five times Display shows Ap100 X XXX x1000 mbar Use a pre
30. e 12 of EN 60079 14 2008 Note especially that for commonly used insulating materials e g poly ethylene the radial thickness of the conductor insulation must be at least 0 2 mm The diameter of a single wire of a flexible conductor must not be smaller than 0 1 mm The conductor ends must be protected against unlaying e g by using wire end ferrules When two separate cables are used for connection an additional cable gland can be installed Cable entries left unused must be sealed with plugs Devices used in ambient temperatures down to 20 C are to be fitted with metal cable entries 9527 3 17 Electrical connection 3 1 Connector A Supply voltage The same pair of conductors transmit the 4 to 20 mA measuring signal and the required supply voltage Us 12 to 36 V for the two wire transmitter A four pin connector according to DIN 43650 form A is used for connection to the Media 6 meter Connectors Two wire connection for 4 to 20 mA signal Permissible load Rg _Us 12V P 0 020 A Normally the supply voltage Ug is 24 V DC Taking into account the supply conductor re sistance directly at the terminals of the device connector the supply voltage may be be tween 12 V and 36 V DC Optional Battery operation 9 V DC supply voltage Ohm Connector B Limit switches pulse output Connection of two software limit switches in type of protection EEx ia IIC for control circuits according to NAM
31. e 4 Operating mode 1 Also for liquid level measurement in transportation vehicle Operating mode Liquid level Flow Ganita Differential pres measurement measurement sure measurement Standard Standard mode GKZ GKZ GKZ GKZ display Displayed values Liquid level Flow rate Meter reading Diff pressure 1 AP AP FLOW APO 2 MCN R MCN R AP AP100 3 SCN R AP100 MCN R PTANK Further 4 ucw PTANK AP100 TKZ oy 5 APO TKZ PTANK 6 AP100 TKZ 7 PTank 8 TKZ 9527 3 21 Start up 5 Start up For start up observe Figs 4 and 5 on page 15 Initial position of the valves on the valve block upon delivery High pressure shut off valve and low pressure shut off valve open Equalizing valve closed CAUTION In cryogenic applications the process me dium circulates when the equalizing valve is open causing the valve block to freeze over Note If necessary check zero at the dp cell see sec tion 6 3 and put the device back into opera tion Note In measuring operation make absolutely sure that the equalizing valve is closed and the shut off valves are open 22 EB 9527 3 EN 5 1 Liquid level measurement 1 Open low pressure line by slow turning 2 Close equalizing valve or bypass of the valve block 3 Open high pressure line by slow turning 5 2 Flow rate measurement When measuring steam Make sure that the steam does not
32. ejnustoA yluysayjasoy pun 552 NOSIAVS 134n33 jnut Jg OL OIL 57 IT e Suppe 8 ainssarg T 9005 VIPON poi juouidmb3 102 XALY 00 91 4 ad L JA AI 0 9 osne Xouuy 23 6 06 IAPAA NOILVISNVUL ugg pun Ziowqosunz ag gypejsuesapung sysstuysa uosipeyrsAuq 9527 3 39 Index Index A Accessories 15 Accessories for connection 16 Alarm 43 Alarm 28 Ambient temperature 11 Ammelter 28 Arrow 43 ATEX un a Gr 17 34 B Battery operation 8 29 C Calibration error 33 10 Checking 25 Communication using a PC 31 Connector 18 18 19 Counting flow rate 21 COVE oie ns OYE XS 43 Data backup u rn ren 8 Data exchange 30 Data memory 8 Data transfer 30 Dead band 10 Deviation from term based conformity 10 Device connector 18 Differential pressure 43 Differential
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34. g the mA value corresponding to the tank content 20 mA ammeter Press and hold key Press key within 8 s and hold it as well Output signal 20 0 mA Release key to switch the signal be tween 20 0 mA and 22 8 mA Release key Current signal returns to indicating the mA value corresponding to the tank content Reactivate write protection by setting switch 4 to position ON 6 8 Battery operation The SAMSON battery supply unit can be connected to connector A for supply over bat teries 9 V DC is supplied by six 1 5 V LR batteries The BAT MODE battery mode is only possi ble in the operating modes liquid level mea surement and liquid level measurement in transportation vehicle The 4 to 20 mA output and limit switches A1 A2 are deactivated and the device is switched to the energy sav ing mode ESM Note Measuring cycles and readings in battery mode Energy saving mode ESM USW and SNC markers do not blink Active operation USW and SNC markers blink The following features apply to BAT MODE Device in energy saving mode ESM 4 to 20 mA signal deactivated Measuring cycle One measured value per minute Filling process While the vessel is being filled the display switches to active opera tion It returns to ESM mode five minutes af ter the filling process has been completed Bar graph Blinking bar graph function de activated Operation The display switches back
35. h 4 to position OFF Plug memory pen into serial interface MEMRD is indicated at the top of the display Press key to start reading data Display shows RUN Data have been saved to Media 6 when DONE is dis played Memory pen can now be re moved Reactivate write protection by setting switch 4 to position ON Transfer data from Media 6 to the memory pen write only status Plug memory pen into serial interface MEMWR is indicated at the top of the display Press key to start writing Press key Display shows RUN Data have been saved to the memory pen when DONE is displayed Memory pen can now be removed Communication using the memory pen 7 2 Communication using a PC Media 6 can also be operated using a PC notebook PC connected to the serial interface and the TROVIS VIEW Configuration and Operator Interface For details refer to Mounting and Operating Instructions EB 9527 2 EN WARNING The serial interface is not approved for use in hazardous areas Do not connect a PC note book PC to the serial interface inside hazard ous areas Refer to section x on page x 9527 3 31 Troubleshooting 8 Troubleshooting Errors on the LCD by the word ERROR written at the top and the associated error code e g 16 being shown atthe bottom of the dis play Refer to table 6 for descriptions of the error codes Press key to reset or confirm errors Depending on the error class Med
36. ia 6 re sponds differently when the key is pressed Class E1 Class E2 Device is restarted Error is suppressed for 8 s Table 6 Error codes Class E3 Error is reset Class E4 Error is reset All errors in Classes E1 to E3 are logged in an error history and can be read or viewed in TROVIS VIEW version V3 11 and higher Errors are not saved only the current error switches the device to error mode For errors in Classes E1 and E2 the signal current is set to lt 3 6 mA Error code Description Class 1 Oscillating circuit of differential inductor failed El 2 Checksum error RAM El 4 Checksum error FRAM El 8 Span outside permissible range E2 16 Error in tank characteristic E2 32 Ap sensor calibration E2 128 Invalid memory pen EA 256 Checksum error memory pen E4 512 Communication error memory pen E4 4096 Internal communication error El 8192 No default calibration available El 16384 No LCD available E3 32768 Crystal oscillator failed E3 Note Error codes can also be added up and displayed as a sum of codes e g FC 8 and FC 16 gt ERROR 24 32 EB 9527 3 EN Calibration error error code 32 After the error was confirmed by pressing the key you have 8 s until the error is indi cated again Recalibrate the device within this period pen error error code 8 or error in tank characteristic error code 16 Troubleshooting using memory pen If availab
37. le use a SAMSON memory pen to transfer new data to the device while the error is suppressed approx 8 5 Troubleshooting using PC or notebook PC connected over connecting cable Communication using a PC or notebook PC and the serial interface also functions in error mode As mentioned above you have approx 8 s after the error was confirmed by pressing the key until the error is indicated again When communicating with a connected PC or notebook PC the device is reset by copying dota Note Using TROVIS VIEW an error status can be reset directly in the Maintenance menv Other errors Such errors need to be confirmed To do so press the key so that the device con con tinue normal operation or perform a restart Servicing explosion protected devices 9 Servicing explosion protected devices If a part of Media 6 on which the explosion protection is based needs to be serviced the device must not be put back into operation until an expert has inspected it according to explosion protection requirements has issued a certificate stating this or given the device a mark of conformity Inspection by an expert is not required if the manufacturer performs a routine test on the device prior to putting it back into operation The passing of the routine test must be docu mented by attaching a mark of conformity to the device Explosion protected components may only be replaced by original routine tested compo
38. medium code with up to 8 characters Error code Error code changed Changed response when confirming errors Device errors are logged in error history refer to page 27 Operating mode New operating modes counting flow rate differential pressure Units for flow rate Flow rate displayed in h or min Units for static pressure PTANK The following units were added mbar bar kPa psi mmH50 20 mH 0 inH 0 DPO value Pressure for 4 mA signal Display LOAD Replaced by display of version no V3 02 V3 02 V3 03 Display mode Counting flow rate operating mode Standard display shows meter reading V3 03 V3 04 Digital potentiometer Temperature control in LCD modified V3 04 V3 10 index 02 Battery operation New supply voltage Battery operation Operating mode New operating mode liquid level measurement in transportation vehicle Boot loader Firmware update 6 9527 3 EN Firmware changes Changes of the device s firmware compared to previous version Old New 9527 3 7 Design and principle of operation 1 Design and principle of operation The Media 6 Differential Pressure Meters are used to measure and indicate differential pressure as well as derived measured variables for gases and liquids Measuring functions Liquid level measurement in stationary pressure vessels and in pressure
39. moisture during installation and transport by keeping the cable socket part screwed on and sealed Table 3 Overview of functions for software limit switches Al and A2 at connector B Proximity switch 1 min 1 max contact 2 min contacts 2 max contacts for gas tapping tank filling gas tapping tank filling Alarm contact Al A2 Al A2 Al A2 Value falls below limit High resistance Low resistance High resistance High resistance Low resistance Low resistance Value exceeds limit Low resistance High resistance Low resistance Low resistance High resistance High resistance The limit switches Al and A2 can be separately configured to function as min or max alarms Note Both limit switch outputs Al and A2 are deactivated during battery operation Low resistance contact Switching signal ON Function contact closed or output effectively conducting power consumption gt mA High resistance contact Switching signal OFF Function contact open or output effectively non conducting power consumption lt 1 mA 9527 3 19 Operation 4 Operation 4 1 Display and operating elements All necessary data and measured values saved in the memory of Media 6 are indicated on the LCD The operating elements are located on the bottom panel behind the protective cover which can be opened Up key Down key Enter key Apart from that four D
40. n it when the air has escaped 5 Check zero see section 6 3 and put the device back into operation Start up 5 3 Draining When measuring gas drain condensed wa ter from the equalizing tanks from time to time WARNING Close valves in the differential pressure lines valve block before opening the drain plugs EB 9527 3 23 Adjustment 6 Adjustment 6 1 The device includes two write protection func tions WRITE PROTECTION to prevent that operat ing data are changed unintentionally SPAN PROTECTION as additional write pro tection for the span settings Write protection To perform certain operating functions deac tivate the write protection on switch 4 position OFF Remember to reactivate write protection when the operating functions have been completed position ON 24 EB 9527 3 EN 6 2 Selecting gas type Select the desired type of gas according to the positions for switches 1 and 2 as given in Fig 7 and the table below Gas 1 1 OFF 2 OFF Gas 2 1 ON 2 OFF Gas 3 1 OFF 2 ON Gas 4 1 ON 2 ON nM Gas code IN ie protection 1 2 3 4 pan protection Fig 7 Selector switches 1 to 4 The gas code for the selected gas e g AR CO2 O2 N2etc is indicated on the display Adjust gas type on the DIP switches as in dicated in the table The display is not active only the selected gas is displayed Press key to
41. n service make absolutely sure that the test medium is free of oil and grease Gaseous oxygen as the process medium Max temperature 60 C max oxygen pressure 30 bar When the device is used for oxygen service make sure that the dp cell and any accessories only come into contact with gaseous oxygen mA display A Supply unit 7 Supply pressure reducing station with B Network oil filter and test pressure gauge Fig 8 Test arrangement Test pressure Precision regulator with Class 0 1 pressure gauge Only use oil free air or other gases e g No 6 4 Checking the measuring range span By default the device has been calibrated with a linear characteristic based on the up per measuring range value of the dp cell By later entering the tank and gas data the device adopts the tank characteristic based on the gas data for the activated type of gas the device calculates values for the display and output signal 4 to 20 mA that are pro portional to the tank content In the same way the differential pressure meter calculates the max possible differential pres sure Ap100 in mbar for the type of gas and the predefined reference height total height or gauge pipe 26 EB 9527 3 EN At Ap 100 the output signal must be 20 mA To check the span conne
42. nents from the manufacturer Devices that have already been used outside hazardous areas and are intended for future use inside hazardous areas must comply with the safety requirements placed on repaired devices Before being used inside hazardous areas the devices must be tested according to the specifications stipulated in EN 60079 Ex plosive atmospheres Part 17 Electrical in stallations inspection and maintenance for servicing explosion protected devices EB 9527 3 33 Servicing explosion protected devices 9 1 Firmware updates on differential pressure meters currently in operation can be per formed as follows Firmware update When updates are performed by a service employee appointed by SAMSON the up date is confirmed on the device by the test mark assigned by SAMSON s Quality Assur ance In all other cases only persons from the plant operator with written approval may perform updates This person must confirm the update on the device Laptops and PCs connected to the power sup ply must use an additional safety barrier This does not apply to laptops in battery oper ation In this case it is assumed that a bat tery powered laptop runs briefly for software programming or for testing purposes Updates outside the hazardous area Remove the differential pressure meters from the plant and update them outside the haz ardous area Updates on site Updates on site are only permitted after
43. ressure PN 50 can be overloaded up to 50 bar on one side Display LCD 90 Characteristic Output and display either linear or root extracting depending on operating mode Deviation from terminal based conformity lt x1 0 or lt 2 5 including hysteresis depending on selected span Sensitivity lt 0 25 lt 0 5 depending on selected span Influence of static pressure lt 0 03 1 bar Influence of ambient tempera ture between 20 and 70 C lt 0 2 10 on zero 0 2 10 K on span Limit switches Two configurable software limit switches or one software limit switch complying with EN 60947 5 6 and pulse output 3 Control circuit adjustable in steps of 1 Values correspond to connected switching amplifier according to EN 60947 5 6 e g KFA6 SR2 Ex2 W or KFA SR2 ExI W Switching accuracy 1 26 relating to MCN or SCN4 Dead band approx 0 6 76 Pulse output Media 6 Z Max possible count frequency 120 pulses min or 7200 pulses h 5 floating transistor contact for connection of external counter Input voltage Upc 50V Input current Ipc 80 mA Residual current l g at 24 V 0 1 mA Voltage drop at 10 mA lt 3 5V Voltage drop at 80 mA lt 4A8V Pulse length Ton 200 ms 10 EB 9527 3 EN Technical data continued Design and principle of operation Version Two wire connection 5006 0 5006 1
44. s apply to dimension K com pensation height illustrated in schematic drawing 3 it can be as high as required by the conditions in the plant 2 1 1 Arrangement of devices for flow rate measurement The decision whether the meter is to be mounted above or below the measuring point or whether equalizing tanks are required de pends on the type of process medium and the specific conditions in the plant The installa tion drawing shows standard and reverse in stallation Standard installation is preferable 12 EB 9527 3 EN in any case Reverse installation can be used only when there is no other possibility particu larly for steam measurements Refer to VDE VDI 3512 Sheet 1 for details 2 2 Media 6 indicating unit Make sure that the high pressure line is con nected to the high pressure connection and that the low pressure line is attached to the low pressure connection Special fittings are required to connect the dif ferential pressure lines Depending on the de vice arrangement seal any connections left un used with plugs or vent plugs Carefully clean the connections before attach ing the differential pressure lines Never flush the device with compressed air or pressurized water Installation Liquid level measurement H Measuring range Illustration with SAMSON valve block h Measured height z Additional height K Compensation height Lt I Schematic
45. t that keeps the operating state constant e g pressure regu lators upstream of the assembly 2 4 1 Accessories We recommend to install a shut off valve as well as an equalizing valve in the differential pressure lines They can be used to shut off both differential pressure lines and to bypass the indicating unit when checking zero Installation 2 4 2 Valve block SAMSON offers a valve block composed of three valves see Fig 4 as accessory equip ment The valve block is flanged directly to the bottom of the dp cell When measuring the flow rate in liquids and gases the SAMSON valve block can also be mounted above the dp cell so that the con nection arrangement of to and to can be maintained Due to this reverse instal lation the pressure gauge connection can no longer be used and is to be sealed with an O ring and a LH screw cap Liquid level measurement ae ee ae an ee Media 6 Test connection Equalizing valve pep ow Flow rate measurement From the measuring point Pressure gauge connection dp line Fig 4 SAMSON valve block connection m Il er Bores for sealing wires 2 to the indicating unit Shut off valve 1 Shut off valves 2 Equalizing valve Fig 5 Arrangement of shut off and equalizing v
46. the plant operator has presented a signed hot work permit After updating has been completed add the current firmware to the nameplate this can be done using labels 34 9527 3 EN WARNING In hazardous areas use only meters ap proved in accordance with ATEX to check the current on the test connection Test see Fig 10 The serial interface see Fig 10 is not ap proved for use in hazardous areas As a re sult use only the intrinsically safe SAMSON memory pen to transfer data 9 2 Maintenance calibration and work on equipment The interconnection with intrinsically safe cir cuits to check or calibrate the apparatus must only be performed with intrinsically safe cur rent voltage calibrators and measuring in struments to rule out any damage to compo nents relevant for explosion protection The maximum values for intrinsically safe cir cuits specified in the approvals must be kept Dimensions in mm 10 Dimensions in mm et 141 5 L1 E Pressure sensor zi depending on manufacturer 194 12 44 180 5 Control panel pe 1 1 R 1
47. ting to safety Note Gives supplementary information and hints Note Essential information or instructions that need to be observed to ensure proper handling and operation 9527 3 EN CAUTION Disobeying instructions may result in prop erty damage WARNING Disobeying instructions may result in prop erty damage or even personal injury DANGER Avoid any contact with live parts Disobeying instructions may result in h property damage or personal in jury even pose a danger to life Safety instructions Safety instructions WARNING The device is to be mounted started up or operated only by trained and experienced per sonnel familiar with the product According to these mounting and operating instructions trained personnel is referred to as individuals who are able to judge the work they are as signed to and recognize possible dangers due to their specialized training their knowledge and experience as well as their knowledge of the applicable standards Explosion protected versions of this device are to be operated only by personnel who have undergone special training or instructions or who are authorized to work on explosion pro tected devices in hazardous areas See also note in section 9 Any hazards that could be caused in the device by the process medium or the operating pressure are to be prevented by means of the appropriate measures In addition make sure that the device
48. ush the differential pressure lines before connecting them to the device Make sure that the high pressure line is connected to the high pressure connection and that the low pressure line is attached to the low pres sure connection 2 4 Orifice plate assembly The direction of flow must match the arrow Unobstructed pipe sections are required up stream and downstream of the orifice plate assembly For the orifice tubes delivered by SAMSON these sections are ensured by the weld on calibration pipes For orifice flanges the unobstructed pipe section upstream of the orifice plate is specified in the order confirma tion Make sure the orifice plate assembly as well as the seals are properly aligned with the pipeline Do not install any control valves that con stantly change the operating state of the pro cess medium e g manually operated control Max perm operating pressure of 40 bar for Type 90 Er WARNING J M t in standard version d 4 4 Type 90 Orifice Flange Inlet 20 to 50 x d Outlet 5 x d Fig 3 Orifice plate assembly Attachment of differential pressure lines on orifice plate assembly For liquids For steam 14 EB 9527 3 EN valves or temperature regulators upstream of the orifice plate assembly The operating state should match the conditions calculated during sizing as closely as possible It is however favorable to install equipmen
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50. vessels on transportation vehicle particularly suit able for cryogenic liquefied gases e g argon oxygen or nitrogen Differential pressure measurement be tween flow and return flow pipe Pressure drop measurement on valves and filters Flow rate measurement based differen tial pressure method The device consists of the dp cell with measur ing diaphragm measuring springs that match the measuring range as well as the in dicating unit equipped with an LCD to indi cate certain operating states The supply volt age Us is 12 to 36 V DC Optional battery operation 1 with 9 V DC without 4 to 20 mA output signal The differential pressure Ap p p2 gener ates a force on the measuring dia phragm 1 1 which is balanced by the mea suring springs 1 2 The movement of the measuring diaphragm and lever 1 3 which is proportional to the differential pressure is led out of the pressure chamber over the elas tic disc 1 4 and converted into an electric signal by the travel sensor 2 Evaluating the data saved in the FRAM 4 the electric signal is processed by a micropro cessor 3 The microprocessor controls both the display 7 and D A converter 9 for the 8 EB9527 3 EN output signal which is issued as a 4 to 20 mA two wire transmitter signal at connector A The serial interface 10 allows the device to be configured with the help of SAMSON s TROVIS VIEW Configuration and Operator Interface
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