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Operating manual

DE49 ## A

Digital differential pressure transmitter

with external sensor

for explosive areas

Dust explosion protection zone 21 and 22, dry dusts

Gas explosion protection zone 1 and 2, gases and vapors

09005572 • BA_EN_DE49_A • Rev. ST4-E • 07/22

*09005572*

Содержание DE49 A Series

Страница 1: ...al differential pressure transmitter with external sensor for explosive areas Dust explosion protection zone 21 and 22 dry dusts Gas explosion protection zone 1 and 2 gases and vapors 09005572 BA_EN_DE49_A Rev ST4 E 07 22 09005572 ...

Страница 2: ...production for internal use is expressly allowed Brand names and procedures are used for information purposes only and do not take the respective patent situation into account Great care was taken when compiling the texts and illustrations Nevertheless errors cannot be ruled out The company FISCHER Mess und Regeltechnik GmbH will not accept any legal responsibility or liability for this Subject to...

Страница 3: ...l description 7 2 1 Scope of delivery 7 2 2 Intended use 7 2 3 Equipment versions 7 2 4 Function diagram 8 2 5 Design and mode of operation 9 3 Assembly 10 3 1 General 10 3 2 Process connection 10 3 3 Electrical connections 11 4 Commissioning 13 4 1 Generalities 13 4 2 Control elements 13 4 3 Parameters 13 5 Servicing 21 5 1 Maintenance 21 5 2 Transport 21 5 3 Service 21 5 4 Disposal 21 6 Technica...

Страница 4: ...f their specialized training their skills and experience and their knowledge of the pertinent standards For explosion proof models the specialized personnel must have received spe cial training or instruction or be authorized to work with explosion proof instru ments in explosion hazard areas 1 3 Risks due to Non Observance of Safety Instructions Non observance of these safety instructions the int...

Страница 5: ...applies to replacement parts Only the manufacturer is authorised to make any modifications or changes 1 6 Inadmissible Modes of Operation The operational safety of this instrument can only be guaranteed if it is used as intended The instrument model must be suitable for the medium used in the system The limit values given in the technical data may not be exceeded The manufacturer is not liable for...

Страница 6: ...urce of danger This indicates a potentially dangerous situation that could lead to death or ser ious injury medium danger level 1 Avoid danger by observing the valid safety regulations CAUTION Type and source of danger This indicates a potentially dangerous situation that could lead to slight or seri ous injury damage or environmental pollution low danger level 1 Avoid danger by observing the vali...

Страница 7: ...ification The differential pressure transmitter DE49 A BH00MW is suitable as an electrical device for operation in potentially explosive areas The unit must be installed in zone 1 or 2 or in zone 21 or 22 if the pressure connections are connected to zone 0 The power circuit must satisfy the ignition protection category Intrinsic safety category ia Designation as per guideline 2014 34 EU II 1 2G Ex...

Страница 8: ...Gb II 2D Ex ia IIIC T80 C Db Tamb 10 C to 60 C Electrical data see user manual Product Basic measuring range Pmax Output signal 2 wire supply Ex ia Prod No Please note Do not separate while energized Functional ground DE49N6A040BH00MW 0 250 mbar 3 bar 4 20 mA 2 wire 30 V DC 1705717 01 001 ATEX marking Order Codes Technical data Serial number Electr connection Year of construction Fig 2 Nameplate 2...

Страница 9: ...lass openings on the inside of a metal case The pressures that are to be compared are fed to the inner and outer side of the sensor membrane via a pressure transfer liquid The separating membranes transfer the medium pressure to the pressure transfer liquid Piezo resistors are diffused into the silicone membrane The force resulting from the differential pressure changes acts on the membrane and ch...

Страница 10: ...ith the in stalled unit Steps must be taken to prevent w sparks being generated on impact w invalidation of the protection class of the casing 1 This can be avoided by attaching protective cover 2 a protective casing or 3 a similar element 3 2 Process connection The process connection may only be realised by authorised and qualified spe cialists that have undergone additional training or briefings...

Страница 11: ...ment Higher pressure lower pressure 2 Pressure measurement Pressure open 3 Under pressure measurement open Under pressure 3 3 Electrical connections Fig 5 Ground connection The electrical connection may only be realised by authorised and qualified spe cialists that have undergone additional training or briefings or have a permit to work on explosion protected units in potentially explosive systems...

Страница 12: ...protection type intrinsic safety Ex ia IIC Ui 30 V Ii 100 mA Pi 750 mW inner effective capacity Ci 2 5 nF effective inner inductivity Li negligible NOTICE In contrast to the EMV GND the power connections have an in ner capacity of max 5 nF Pin assignment Fig 7 M12 connector 5 pin Pin Signal name Cable colour 1 Supply output Ub Sig brown 2 unused n c white 3 Supply output Ub Sig blau 4 unused n c s...

Страница 13: ...ypad ÿ Page down menu Decrease value û Call up menu Save value OK þ Page up menu Increase value 4 3 Parameters After being activated the device briefly displays the software version number and carries out a display test Then the transmitter goes into normal mode When setting the parameters the display either shows the respective menu item or the associated parameter value The device continues to f...

Страница 14: ...but not on the measuring cell itself You can set the response time to pressure jumps with this parameter The value range is 0 0 s to 200 0 s NOTICE Maximum damping But with maximum damping it will take more than 2 minutes for the reading also to reach zero after a pressure jump from nominal pressure 100 to zero In many cases unsteady readings are not a problem during normal operating mode but this...

Страница 15: ...s ma and me must at least be 25 of the basic measuring range The software does not allow any larger spreads Turndown 4 1 If the range information is stated wrongly you cannot leave the menu If ma me the characteristic curve rises The output signal grows as the pressure increases If ma me the characteristic curve drops The output signal drops as the pressure increases 4 3 6 Output signal limits NAM...

Страница 16: ...d determines the underlying medium Value Medium 0 Water operation 1 Petrol 2 Diesel Support point table f 3 30 causes linearization of the output and display based on a support point table The menu shows the parameters dpf maf mef and med These are the same parameters as for the rooted output signal see above Please note that the support point table for a filling level measurement always needs to ...

Страница 17: ...0 0 Value pair 2 p 02 i 02 Fig 10 Table function 4 3 8 Password The parameter pas serves to define a password A value between 0 and 999 can be selected for the password The value 0 can cels the password function If a password has been issued the unit configuration is protected by this pass word You can use the key û to switch to the configuration mode however as soon as you select a parameter a pa...

Страница 18: ...by one ESc menu start OUTPUT ma Start of measuring range Enter the pressure value here that corresponds to an output signal of 4mA Max turndown 4 1 me End of measuring range Enter the pressure value here that corresponds to an output signal of 20mA Max turndown 4 1 dam Damping measuring pressure To calm the pressure measurement enter the minimum rising time 0 200s here ein Change unit bar mbar Pa ...

Страница 19: ...ee unit The measured value is displayed without a unit and can therefore be assigned to any unit by the user using the following parameters free unit dPF Decimal point free unit This parameter states the number of decimal points of the displayed measured value Possible values are 0 3 maf Start of measuring range free unit Defines the start of the free measuring range This value can normally stay a...

Страница 20: ... 5 22 5mA i er Error signal Define the output signal here 3 5 22 5mA that should be issued when there is an internal error in the device pass Password A value between 1 and 999 can be selected for the password The value 0 de activates the password function rst Reset This parameter value is set to 0 If this parameter is set to 1 all parameters are irrevocably reset to the default settings ESc menu ...

Страница 21: ...ar intervals to prevent heat build up Cleaning intervals depend on the amount of local dust 5 2 Transport The measuring device must be protected against impacts It should be transpor ted in the original packaging or a suitable transport container 5 3 Service All defective or faulty devices should be sent directly to our repair department Please coordinate all shipments with our sales department WA...

Страница 22: ... 1 0 FS Typical 0 5 FS Temperature coefficient TK Zero point max 0 2 FS 10 K Span max 0 2 FS 10 K 6 5 Display and control elements Display 4 digit LC display stating the measuring unit Keyboard Foil keypad with 3 buttons Programming Damping 0 0 100 0 s jump response time 10 90 for sig nal input Measuring range unit mbar bar Pa KPa PSI and inWc Start end of measuring range User definable within the...

Страница 23: ...ns have an in ner capacity of max 5 nF 6 7 Application conditions Increase ambient temper ature 10 60 C Media temperature 10 60 C Storage temperature 20 70 C Enclosure protection class IP65 as per EN 60529 EMC EN 61326 1 2013 EN 61326 2 3 2013 RoHS EN 50581 2012 ATEX EN 60079 0 2012 A11 2013 EN 60079 11 2012 EN 60079 26 2015 ATEX classification Type testing IBExU09ATEX1164 Zone 1 and 2 II 1 2G Ex ...

Страница 24: ...E49_A 6 8 1 Dimensional drawings All dimensions in mm unless otherwise stated 90 11 44 48 129 124 22 AF27 Hexagonal 75 10 56 24 50 G Inner thread Ø 5 5 Pressure compensation M12 plug connection Process connection for options see order code Fig 11 Dimensional picture ...

Страница 25: ...ar N7 0 1 bar 3 bar 3 EXECUTION A Encapsulated sensor 4 Characteristic curve 0 linear rising standard R root extracted 5 6 Process connection 00 Default 40 Aluminium screw connection for 6 4 mm hose 41 Aluminium screw connection for 8 6 mm hose 24 Cutting ring screw connection made of 1 4571 for 6 mm tube 25 Cutting ring screw connection made of 1 4571 for 8 mm tube 7 Output signal B 4 20 mA 2 wir...

Страница 26: ...fier for ATEX applications 24 V DC 1 channel Input 4 20 mA Output 4 20 mA The device can be mounted in Zone 2 Cl 1 Div 2 and can receive signals from Zones 0 1 and 2 as well as 20 21 and 22 including Mining Class I II III Div 1 Size A G SIL2 SIL3 according to IEC 61508 9106B1A 05003093 Display Programming front Communication interface for setting the oper ating parameters for supply isolating ampl...

Страница 27: ...FISCHER Mess und Regeltechnik GmbH Attachments 8 BA_EN_DE49_A 27 36 ...

Страница 28: ...8 Attachments FISCHER Mess und Regeltechnik GmbH 28 36 BA_EN_DE49_A 8 Attachments 8 1 EU Declaration of Conformity Fig 12 CE_DE_DE49 A_Page_1 ...

Страница 29: ...FISCHER Mess und Regeltechnik GmbH Attachments 8 BA_EN_DE49_A 29 36 Fig 13 CE_DE_DE49 A_Page_2 ...

Страница 30: ...8 Attachments FISCHER Mess und Regeltechnik GmbH 30 36 BA_EN_DE49_A 8 2 ATEX type testing Fig 14 IBExU09ATEX1164_issue2_page1 ...

Страница 31: ...FISCHER Mess und Regeltechnik GmbH Attachments 8 BA_EN_DE49_A 31 36 Fig 15 IBExU09ATEX1164_issue2_page2 ...

Страница 32: ...8 Attachments FISCHER Mess und Regeltechnik GmbH 32 36 BA_EN_DE49_A Fig 16 IBExU09ATEX1164_issue2_page3 ...

Страница 33: ...FISCHER Mess und Regeltechnik GmbH BA_EN_DE49_A 33 36 Notes ...

Страница 34: ...FISCHER Mess und Regeltechnik GmbH 34 36 BA_EN_DE49_A Notes ...

Страница 35: ...FISCHER Mess und Regeltechnik GmbH BA_EN_DE49_A 35 36 Notes ...

Страница 36: ...elefelder Str 37a D 32107 Bad Salzuflen Tel 49 5222 974 0 Fax 49 5222 7170 www fischermesstechnik de info fischermesstechnik de Technische Änderungen vorbehalten Subject to technical changes Sous réserve de modifications techniques ...

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