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Maintenance and servicing

5.7 Replacing parts

SITRANS P DS III
Service Manual, 06/2014, A5E34219855-01

47

5.7.6

Replacing the application electronics

Procedure for replacing the application electronics

1.

Isolate the device from power.

2.

Remove the display. Compare section Replacing the display (Page 45).

3.

Use a 7 mm socket wrench to remove the hexagon stud bolts on the left and right.

4.

Remove the application electronics.

5.

Remove the measuring cell PCB from the application electronics. To do this, carefully

release the clip using a screwdriver as shown in the following picture.

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Содержание SITRANS P DS III

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Страница 3: ...___________ ___________________ ___________________ SITRANS Pressure transmitter SITRANS P DS III Service Manual 7MF4 33 7MF4 34 7MF4 35 06 2014 A5E34219855 01 Introduction 1 Safety notes 2 Description 3 Connecting 4 Maintenance and servicing 5 Technical specifications 6 Ordering data for spare parts accessories 7 Appendix A ...

Страница 4: ...nly by personnel qualified for the specific task in accordance with the relevant documentation in particular its warning notices and safety instructions Qualified personnel are those who based on their training and experience are capable of identifying risks and avoiding potential hazards when working with these products systems Proper use of Siemens products Note the following WARNING Siemens pro...

Страница 5: ...ctives 15 2 2 Improper device modifications 15 2 3 Use in hazardous areas 16 3 Description 19 3 1 Structure 19 3 2 Nameplate layout 20 3 3 Measuring point label layout 21 4 Connecting 23 4 1 Basic safety instructions 23 4 2 Connecting the device 26 5 Maintenance and servicing 29 5 1 Basic safety instructions 29 5 2 Defining the maintenance interval 32 5 3 Checking the gaskets 33 5 4 Display in cas...

Страница 6: ...tion electronics 47 5 7 7 Replacing the measuring cell 49 5 8 Cleaning 51 5 8 1 Servicing the remote seal measuring system 52 5 9 Return procedure 53 5 10 Disposal 54 6 Technical specifications 55 7 Ordering data for spare parts accessories 57 A Appendix 65 A 1 Certificate 65 A 2 Technical support 65 A 3 Repair report for installation of spare parts 67 Glossary 69 Index 73 ...

Страница 7: ...ogramming manual is an integral part of the CD which is either supplied or can be ordered The programming manual is also available on the Siemens homepage On the CD you will also find the catalog extract with the ordering data the Software Device Install for SIMATIC PDM for additional installation and the required software See also Product information on SITRANS P in the Internet http www siemens ...

Страница 8: ...ve non corrosive and hazardous gases vapors and liquids You can use the transmitter for the following types of measurement Gauge pressure Absolute pressure Differential pressure With appropriate parameter settings and the necessary add on parts e g flow orifices and remote seals the pressure transmitter can also be used for the following measurements Level Volume Mass Volume of flow Mass flow rate...

Страница 9: ...elow indicates whether the new application electronics matches the device 2 Check the product version on the application electronics sticker 3 Check the compatibility mark on the nameplate of the device Table 1 1 The following table is valid for SITRANS P DS III with HART 7MF4 33 Product version ES Compatibility mark Remark 007 to 025 K 01 Replacement not possible 030 to 035 K 01 Replacement possi...

Страница 10: ...ITRANS P DS III 10 Service Manual 06 2014 A5E34219855 01 Example of application electronics for SITRANS P DS III with PA and FF Example of application electronics for SITRANS P DS III with HART Product version ES Compatibility mark Figure 1 1 Compatibility mark on the nameplate ...

Страница 11: ...s replacement parts should be returned in their original packaging If the original packaging is no longer available please ensure that all shipments are sufficiently protected during transport by the replacement packaging Siemens accepts no liability for additional costs resulting from damage in transit CAUTION Insufficient protection during storage The packaging only provides limited protection a...

Страница 12: ... relationship The sales contract contains all obligations on the part of Siemens as well as the complete and solely applicable warranty conditions Any statements regarding device versions described in the manual do not create new warranties or modify the existing warranty The content reflects the technical status at the time of publishing Siemens reserves the right to make technical changes in the...

Страница 13: ...Introduction 1 8 Notes on warranty SITRANS P DS III Service Manual 06 2014 A5E34219855 01 13 ...

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Страница 15: ...rea applications are for example IEC 60079 14 international EN 60079 14 EC 2 1 2 Conformity with European directives The device complies with the European directives even following the use of replacement parts 2 2 Improper device modifications WARNING Improper device modifications Danger to personnel system and environment can result from modifications to the device particularly in hazardous areas...

Страница 16: ...o longer ensured for use in hazardous areas There is a danger of explosion Connect the device in Intrinsic Safety type of protection solely to an intrinsically safe circuit Observe the information on the electrical specifications in the certificate and in the Technical specifications chapter in the operating instructions WARNING Use of incorrect device parts in potentially explosive environments D...

Страница 17: ...ctrostatic charge To prevent the build up of an electrostatic charge in a hazardous area the key cover must be closed during operation and the screws tightened The key cover may be opened temporarily at any time for the purposes of operating the pressure transmitter even during plant operation the screws should then be tightened again ...

Страница 18: ...Safety notes 2 3 Use in hazardous areas SITRANS P DS III 18 Service Manual 06 2014 A5E34219855 01 ...

Страница 19: ... information Process connection Blanking plug Nameplate general information Figure 3 1 View of the transmitter Left Front right Rear view The electronics enclosure is made of die cast aluminum or precision cast stainless steel The housing has a removable circular cover at the front and the back Depending on the device version the front cover may be designed as an inspection window You can read the...

Страница 20: ... Thanks to the modular design of the transmitter the measuring cell and application electronics or connection board can be replaced if required On the upper face of the enclosure you can see crosshead screws which secure the key cover under which there are 3 keys for local operation 3 2 Nameplate layout Nameplate with general information The nameplate bearing the Order No and other important infor...

Страница 21: ...ware versions You must also observe the information in the relevant certificate for a transmitter version for use in hazardous areas Characteristics for hazardous area Maximum surface temperature temperature class Category for operating area Device protection level Type of protection Firmware identifier Group gas dust Hardware identifier Figure 3 3 Example of a nameplate 3 3 Measuring point label ...

Страница 22: ...Description 3 3 Measuring point label layout SITRANS P DS III 22 Service Manual 06 2014 A5E34219855 01 ...

Страница 23: ...mly WARNING Hazardous contact voltage in versions with 4 conductor extension Danger of electrocution in case of incorrect connection Observe the instructions in the 4 conductor extension operating manual for the electrical connection WARNING Improper power supply Danger of explosion in hazardous areas as result of incorrect power supply e g using direct current instead of alternating current Conne...

Страница 24: ... hazardous areas Protect unused cable ends in accordance with IEC EN 60079 14 WARNING Improper laying of shielded cables Danger of explosion through compensating currents between hazardous area and the non hazardous area Only ground shielded cables that run into the hazardous area at one end If grounding is required at both ends use an equipotential bonding conductor WARNING Connecting device in e...

Страница 25: ...CE Ambient temperature too high Damage to cable sheath At an ambient temperature 60 C 140 F use heat resistant cables suitable for an ambient temperature at least 20 C 68 F higher NOTICE Incorrect measured values with incorrect grounding The device must not be grounded via the connection It may otherwise malfunction and be permanently damaged If necessary ground the device using the connection Not...

Страница 26: ...ting instructions 4 2 Connecting the device Opening the device 1 Unscrew the cover of the electrical cable compartment An identification text FIELD TERMINALS is provided at the side of the housing Connecting the device 1 Lead the connecting cable through the cable gland 2 Connect the device to the plant with the protective conductor connection 3 Connect the wires to the connecting terminals and En...

Страница 27: ...grated load Safety catch Auxiliary power Protective conductor connection equipotential bonding terminal Cable entry for auxiliary power analog output Process connection Connecting terminals Ground terminal Test connector for direct current measuring device or connection for external display PROFIBUS PA Foundation Fieldbus FF Electrical connection power supply ...

Страница 28: ...y cover 4 Tighten the screws in the key cover 5 Check the tightness of the blanking plugs and cable gland in accordance with the degree of protection Key cover Blanking plug Cable gland Safety catch front Safety catch back Cover front optionally with inspection window Cover rear for electrical terminal compartment Safety catch for stainless steel enclosure Figure 4 1 View of the transmitter Left B...

Страница 29: ...otentially explosive environments Devices and their associated device parts are either approved for different types of protection or they do not have explosion protection There is a danger of explosion if device parts such as covers are used for devices with explosion protection that are not expressly suited for this type of protection If you do not adhere to these guidelines the test certificates...

Страница 30: ...of the error Correct the error If the error still exists Take the device out of operation Prevent renewed commissioning WARNING Hot toxic or corrosive process media Danger of injury during maintenance work When working on the process connection hot toxic or corrosive process media could be released As long as the device is under pressure do not loosen process connections and do not remove any part...

Страница 31: ...or safety related applications CAUTION Hot surfaces Danger of burns during maintenance work on parts having surface temperatures exceeding 70 C 158 F Take corresponding protective measures for example by wearing protective gloves After carrying out maintenance remount touch protection measures WARNING Hazardous voltage with open device in versions with 4 conductor extension Danger of electrocution...

Страница 32: ...er a longer period of operating time has elapsed Protective measures against the discharge of static electricity Make sure that no power is applied Before working with modules make sure that you discharge static from your body for example by touching a grounded object Devices and tools used must be free of static charge Hold modules only by their edges Do not touch connector pins or conductor trac...

Страница 33: ...r the start of scale value Changing seals in devices with differential pressure measuring cells may only be carried out by personnel authorized by Siemens Note Using the wrong seals Using the wrong seals with flush mounted process connections can cause measuring errors and or damage the diaphragm Always use seals which comply with the process connection standards or are recommended by Siemens 1 Cl...

Страница 34: ...ing range measuring cell material oil filling and user data of the application electronics e g downscaling additional electrical damping are located in the measuring cell EEPROM User data is lost when the measuring cell is replaced Application specific data are not lost when the application electronics are changed You can backup user data before changing the measuring cell and reload it afterwards...

Страница 35: ...of application electronics or measuring cell Value following resetting to factory setting Operating unit TAG Device sensor serial number Unit and cycle time unit bar Unit and cycle time cycle time 90 ms Measuring limits min measuring range Measuring limits min start of scale value max full scale value Measured value scaling start of scale value 0 0 Measured value scaling full scale value Upper sen...

Страница 36: ...vision Device hardware revision Device field device revision Device date Device factory number Display and user interface local display unit Display and user interface bargraph Display and user interface local operation Calibration interval for application electronics all settings Current saturation monitoring alarm activation Current saturation monitoring saturation alarm alarm duration Operating...

Страница 37: ...Design type remote seal number of remote seal flanges Design type remote seal remote seal type Design type remote seal diaphragm material Design type remote seal remote seal filling Design type remote seal tube length Design type process connection process connection type Design type process connection venting valve material Design type process connection venting valve position Design type process...

Страница 38: ... Input transducer block 1 measuring range start of scale value Input transducer block 1 measuring range full scale value Input transducer block 1 working range unit Input transducer block 1 working range start of scale value Input transducer block 1 working range full scale value Input transducer block 1 characteristic low flow cut off Input transducer block 1 characteristic start of root function...

Страница 39: ... 06 2014 A5E34219855 01 39 Parameter name in SIMATIC PDM Status of user data following replacement of application electronics or measuring cell Sensor calibration Position error calibration Write block Operating hours counter application electronics Min max pointers for electronics temperature ...

Страница 40: ...pending on a customer specific order the device comprises different parts The next chapters show you how to replace the components 1 Cover front optionally with inspection window 8 Cover rear for electronic terminal compartment 2 O ring between the cover and housing 9 Connection for digital display 3 Display optional 10 Measuring cell 4 Threaded bolts 11 Connection board 5 Application electronics ...

Страница 41: ... Procedure for replacing the connection board 1 Isolate the device from power 2 Use a 3 mm Allen key to loosen the cover 3 Open the cover rear of the electronic connection compartment 4 Disconnect the cables from the connection board 5 On the left and right side remove the recessed head screws that hold the connection board to the enclosure ...

Страница 42: ... servicing 5 7 Replacing parts SITRANS P DS III 42 Service Manual 06 2014 A5E34219855 01 6 Make sure when loosening the recessed head screws that the washers serrated washers are not lost 7 Remove the connection board ...

Страница 43: ... so that its contact pins on rear side mate the contacts in the housing 2 Work in the reverse order as described in Procedure for replacing the connection board 3 Close the device as described in Chapter Closing the device Page 26 5 7 4 Replacing the pushbutton module 1 Isolate the device from power 2 In order to open the pushbutton flap loosen the two recessed head screws on the outside ...

Страница 44: ...river to loosen the two screws of the pushbutton insert you can now see 6 Remove the pushbutton insert from the housing 7 Remove the three keys with springs from the pushbutton insert Procedure for installing the pushbutton module 1 Work in the reverse order as described in Procedure for replacing the pushbutton module 2 When inserting the new pushbutton module make sure that the magnets of the ke...

Страница 45: ...SITRANS P DS III Service Manual 06 2014 A5E34219855 01 45 5 7 5 Replacing the display Procedure for replacing the display 1 Open the front cover optional with inspection window 2 Remove the recessed head screws on the left and right on the display ...

Страница 46: ...using 4 Remove the connector of the ribbon cable from the application electronics Procedure for installing the display 1 You can also turn the mounting position of the display by 90 or 180 2 Work in the reverse order as described in Procedure for replacing the display 3 Close the device as described in Chapter Closing the device Page 26 ...

Страница 47: ...n electronics 1 Isolate the device from power 2 Remove the display Compare section Replacing the display Page 45 3 Use a 7 mm socket wrench to remove the hexagon stud bolts on the left and right 4 Remove the application electronics 5 Remove the measuring cell PCB from the application electronics To do this carefully release the clip using a screwdriver as shown in the following picture ...

Страница 48: ...make sure that the contact pins fit in the rear of the application electronics The ribbon cable of the measuring cell should be positioned between the contact pins and that of the keyboard PCB on the left of the pins 3 Do not kink pinch tension or twist the ribbon cable when plugging it onto the application electronics 4 Close the device as described in Chapter Closing the device Page 26 5 Followi...

Страница 49: ...ocedure for replacing the measuring cell Note When using the differential pressure cell replace the complete measuring cell with process flanges 1 Isolate the device from power 2 Remove the display Compare section Replacing the display Page 45 3 Remove the application electronics Compare section Replacing the application electronics Page 47 ...

Страница 50: ...NOTICE Damage to the ribbon cable To avoid damage to the ribbon cable when installing or removing the measuring cell do not kink pinch tension or twist it Do not kink pinch tension or twist the ribbon cable 5 Turn the measuring cell counter clockwise to remove it from the housing To do this use a matching open end wrench relative pressure transmitter or rotate the measuring cell by hand ...

Страница 51: ...e arrow must remain visible within the marked area 4 Work from here on in the reverse order as described in Procedure for replacing the measuring cell 5 Close the device as described in Chapter Closing the device Page 26 6 Following a replacement permanently obliterate the hardware ID on the nameplate if applicable 7 Write the new hardware ID on the nameplate 8 Following replacement of the measuri...

Страница 52: ...charge Danger of explosion in hazardous areas if electrostatic charges develop for example when cleaning plastic enclosures with a dry cloth Prevent electrostatic charging in hazardous areas 5 8 1 Servicing the remote seal measuring system The remote seal measuring system usually does not need servicing If the mediums are contaminated viscous or crystallized it could be necessary to clean the diap...

Страница 53: ...nofdecontamination With this declaration you warrant that the device replacement part has been carefully cleaned and is free of residues The device replacement part does not pose a hazard for humans and the environment If the returned device replacement part has come into contact with poisonous corrosive flammable or water contaminating substances you must thoroughly clean and decontaminate the de...

Страница 54: ...servance of the Directive 2002 96 EC on waste electronic and electrical equipment WEEE They can be returned to the supplier within the EC or to a locally approved disposal service Observe the specific regulations valid in your country Note Special disposal required The device includes components that require special disposal Dispose of the device properly and environmentally through a local waste ...

Страница 55: ... of the application electronics or measuring cell Table 6 1 Technical specifications measuring accuracy SITRANS P DS III with HART No calibration of zero and span Calibration of zero and span Measurement deviation with limit setting including hysteresis and repeatability Linear characteristic curve r 10 Value doubled Value remains unchanged Effect of ambient temperature At 10 60 C 14 140 F Value d...

Страница 56: ...Technical specifications SITRANS P DS III 56 Service Manual 06 2014 A5E34219855 01 ...

Страница 57: ...SITRANS P DS III Service Manual 06 2014 A5E34219855 01 57 Ordering data for spare parts accessories 7 ...

Страница 58: ...Ordering data for spare parts accessories SITRANS P DS III 58 Service Manual 06 2014 A5E34219855 01 ...

Страница 59: ...Ordering data for spare parts accessories SITRANS P DS III Service Manual 06 2014 A5E34219855 01 59 ...

Страница 60: ...Ordering data for spare parts accessories SITRANS P DS III 60 Service Manual 06 2014 A5E34219855 01 ...

Страница 61: ...Ordering data for spare parts accessories SITRANS P DS III Service Manual 06 2014 A5E34219855 01 61 ...

Страница 62: ...Ordering data for spare parts accessories SITRANS P DS III 62 Service Manual 06 2014 A5E34219855 01 See also Process instrumentation catalog http www siemens com processinstrumentation catalogs ...

Страница 63: ...Ordering data for spare parts accessories SITRANS P DS III Service Manual 06 2014 A5E34219855 01 63 ...

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Страница 65: ...t our technical support is available on the Internet at Technical Support http www siemens com automation csi service Industry Online Support In addition to our documentation we offer a comprehensive knowledge base on the Internet at Services Support http www siemens com automation service support There you will find The latest product information FAQs downloads tips and tricks Our newsletter with...

Страница 66: ...anual and do not find the right answers Find your contact partner at Partner http www automation siemens com partner Documentation for various products and systems is available at Instructions and manuals http www siemens com processinstrumentation documentation See also Product information on SITRANS P in the Internet http www siemens com sitransp Process instrumentation catalog http www siemens ...

Страница 67: ... Measuring cell Sensor serial number Spare part order no 7MF499 _ _ _ _ _ _ _ Z _ _ _ Additional components Z _ _ _ Z _ _ _ Z _ _ _ Z _ _ _ Z _ _ _ Z _ _ _ Z _ _ _ Z _ _ _ Z _ _ _ Z _ _ _ 3b Device information Spare Part 2 Application electronics Electronic serial number ES electronic cup FW electronic cup Spare part order no 7MF4999 _ _ _ _ _ _ _ _ _ 3c Device information Spare Part 3 Connection ...

Страница 68: ...ocumentation Repair period From To Safety measures Work completed 5 Approval Check mark the relevant items and fill out the fields Replacement documentation was read and observed ESD guidelines were observed Inspected by Ex expert Function test completed Name of Ex expert Date Signature of Ex expert Author name Date Author signature ...

Страница 69: ...ity and or other properties which are important for the correct functioning of switch components Auxiliary voltage Auxiliary power supply Dangerous failure Failure with the potential to switch a safety instrumented system to a hazardous or non functioning safety state EEPROM EEPROM Electrically Erasable Programmable Read Only Memory a non volatile electronic memory module EEPROMs are often used wh...

Страница 70: ...e Remote Transducer is a standardized widely used communications system used to structure industrial fieldbusses The communications system provides digital communications for multiple participants field devices via a common databus HART is based especially on the equally widely used 4 20 mA standard for the transfer of analog sensor signals The cabling from existing older systems can be used direc...

Страница 71: ...lement Example A safety instrumented system is made up of a pressure transmitter a limit signal sensor and a control valve Sensor Converter that converts mechanical or other non electric variables into electrical signals SIL The international standard IEC 61508 defines four discrete safety integrity levels SIL from SIL 1 to SIL 4 Each level corresponds to a probability range for the failure of a s...

Страница 72: ...ear in two levels up to the application point and has a pre defined application point of 10 srli2 or srlin2 are synonymous and technically there is no difference between them The abbreviation srli2 is used in sections that refer to the on site operation of the pressure transmitter The reason for the abbreviation is that the pressure transmitter display is restricted to five characters The abbrevia...

Страница 73: ...ice Electrostatic sensitive 32 E Electrostatic sensitive device ESD 32 F Firmware 7 H Hazardous area Laws and directives 15 History 7 Hotline 65 I Improper device modifications 15 Internet 65 N Nameplate 20 Nameplate with general information 20 P Process connection 20 Q Qualified personnel 16 R Remote seal Maintenance 52 S Scope of delivery 8 Service 65 Structure 19 Support 65 T Test certificates ...

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