Emerson MSP422 User's Manual
Contents
1. ooooooooocoornrrr eee 4 11 mobrey EMERSON www mobrey com Process Management Reference Manual IP2013 Rev BA Mobrey MSP422 February 2012 SECTION 5 Safety Messages aa gi su Deas au baa wath ana AN ar Dado Rate ote 5 1 Service and e ms dee oe IN alate aide tees todd A dart Aa 5 2 Troubleshooting Diagnostics for The MSPA422 a tenable tee 5 2 General Troubleshooting 0 0 c eee eee eee 5 2 Error Messages sita dirias rallada 5 2 APPENDIX A Special taa A A A 1 Reference Data Temperature and Pressure RatingS oooooooooooo A 2 Load Limitatlons ss 43 wai a aa A 2 Dimension DrawingS 2 00 e eee eee A 3 APPENDIX B Safety Messages la B 1 Product Certifications Manufacturing Location ccc eee eens B 2 European Union Directive Information lt B 2 Non hazardous Location Certifications a B 2 American and Canadian CertificationS B 2 TOC 2 Reference Manual IP2013 Rev BA February 2012 Mobrey MSP422 Section 1 Introduction Safety Messages cee e eee eee eee page 1 1 Manual Overview oocooococccon page 1 2 Customer Support ooooccccco ees page 1 2 SAFETY MESSAGES Procedures and instructions in this manual may require special precautions to ensure the safety of the personnel performing the operations Information that raises potential safety issues is indicated by a wa2. Reference Data Specifications lt aaa oo page A 1 Temperature and Pressure Ratings page A 2 Load Limitations lt e eee eee eee page A 2 Dimension DrawingS 00 0eee cece eee page A 3 SPECIFICATIONS General Product Mobrey MSP Series Ultrasonic Level Transmitters Level and Distance measurement Measurement Principle Ultrasonic time of flight Measuring Performance Measurement Range Level Resolution Level Accuracy Under Reference Conditions 1 to 26 ft 0 3 to 8 m Better than 0 06 in 1 mm 0 2 in 5 mm for lt 3 3 ft 1 m 0 5 of measured distance for gt 3 3 ft 1 m Blanking Distance Dead Zone 12 in 0 3 m Update Interval Display 500 ms Current Output 200 ms Display Configuration Integral Display Display Units Output Output Units Configuration Tools Electrical 4 digit display for live measurement and for configuration purposes m ft or in Level Set by Display Units selection Standard integral push buttons with LCD External Power Supply 12 to 30 Vdc Loop powered two wire Earthing None required Current Output Analog 4 20 mA Signal On Alarm Low 3 6 mA High 21 mA Saturation Levels Low 3 8 mA High 20 5 mA Cable Entry M20 x 1 5 conduit entry for a cable gland Output Cabling Single twisted pair and shielded min 0 22 mm 24 AW
3. Mobrey MSP422 Reference Manual IP2013 Rev BA February 2012 Figure 3 2 Mounting The Mobrey MSP422 Using A Nozzle Stand off Tighten To A Torque Of 1 5 Ibf ft 2 Nm Using The Hexagon Do Not Use The Housing To Tighten Table 3 1 Nozzle Diameter Size D and Max Length L Figure 3 3 Mounting the Mobrey MSP422 Using a Bracket Kit 3 6 Use Non metallic Fitting Flange NOTE If the transmitter face does not protrude into the vessel note the dimensions in Table 3 1 for Figure 3 2 and always ensure that the nozzle vessel weld is smooth and free from internal weld beads or other projections Nozzle Diameter Size D Maximum Nozzle Length L DN50 2 in 4 in 100 mm DN80 3 in 6 3 in 160 mm DN100 4 in 6 3 in 160 mm gt DN125 5 in 11 8 in 300 mm Stainless Steel Bracket PVC Disc No 4X 13 Long Self Tap Screw 3 Positions Carbon Steel Zinc Plated Note Combined weight of bracket and disc is 16 oz 0 5 kg Reference Manual IP2013 Rev BA February 2012 Mobrey MSP422 ELECTRICAL INSTALLATION Cabling the Transmitter Figure 3 4 MSP422 Wiring Twisted pair Screened Min 0 22 mm 24 SWG 23 AWG Max 1 5 mm 16 SWG 18 AWG NOTE The MSP 422 is not intrinsically safe certified and is therefore for use in non hazardous Ordinary Location installations only The Mobrey MSP422 is a two wire loop powered t
4. Lrn 4 3 Mobrey MSP422 Reference Manual IP2013 Rev BA February 2012 PROGRAMMING THE MSP422 Display Units 4 4 Refer the Integral Display menu on a card tucked between the housing and body and in Figure 4 1 on page 4 3 The display units are indicated by the position of the decimal point in the displayed PV value Units Display m 8 000 ft 26 24 in 314 9 Default values are as follows MSP422 B28 m MSP422 N28 ft NOTE See Figure 4 1 on page 4 3 for a map of the programming menu structure showing how to access all the menu options and return to the PV display To change the display units a Start from the PV display see the note above b Hold down the blue button gt for 10 seconds but do not release it yet c The display units will then change according to the following sequence MSP422 B28 Metres to Feet Feet to Inches and Inches to Metres MSP422 N28 Feet to Inches Inches to Metres and Metres to Feet d Continue to hold down the blue button gt to change to the next display unit in the above sequence after every three seconds e Confirm the display units by releasing the blue button gt The same units must be used when programming in the bottom reference and the 4 and 20 mA points The 4 20 mA output may be set to operate over all or just a part of the total measuring range There is no limit on the minimum span of the current output although a span below 4 in 100 mm
5. and then click on the quick links Mobrey Service or Product Support AACAUTION Individuals who handle products exposed to a hazardous substance can avoid injury if they are informed of and understand the hazard If the product being returned was exposed to a hazardous substance as defined by OSHA a copy of the required Material Safety Data Sheet MSDS for each hazardous substance identified must be included with the returned goods Recycling of equipment and packaging should be taken into consideration The product and packaging should be disposed of in accordance with local and national legislation Reference Manual IP2013 Rev BA February 2012 Mobrey MSP422 Section 2 THEORY OF OPERATION Figure 2 1 Typical Application Using a Mobrey MSP422 Transmitter mobrey Transmitter Overview Theory of Operation lt eee eee page 2 1 Components of the Transmitter page 2 2 The Mobrey MSP422 ultrasonic level transmitter is designed to be mounted above a liquid and uses ultrasonic pulses to continuously measure the distance to the liquid surface The microprocessor controlled electronics measures the time delay between the transmitting and the receiving of the reflected signals to calculate the distance Figure 2 1 When programmed with the bottom reference of the application usually the bottom of a tank the MSP422 computes the liquid depth level and outputs a 4 20 mA s
6. button and then the green button to get to the next menu option d Press the blue button gt to start editing The display flashes alternately 20 and the new level reading e Press the blue button gt to confirm the new level reading is the new 20 mA level f If the new 20 mA level is correct press the red button to save The display changes to the next menu option g Ifthe new 20 mA level is incorrect press the blue button gt to exit to the menu The menu option s 20 re appears re start at step b or press 4 for the next menu option The MSP422 has an easy to use Lrn Learn routine that allows the instrument to learn up to two false echoes which can then be ignored in future operations If the application is simple and there are no false echoes press the green button to exit the integral display menu and return the instrument to indicating the level reading on the display If an echo other than the true liquid surface echo is detected and an incorrect level reading is indicated the instrument can learn to ignore this false echo The Lrn routine may be used at any time either during or after setting up or if a problem occurs later NOTE See Figure 4 1 on page 4 3 for a map of the programming menu structure and how to access all the menu options To store a false target echo a If entering the menu system from the PV display press the green button 4 repeatedly until the Lrn men
7. gt to enter the menu for b rEF The display indicates the present b rEF value c If this value is correct press the red button 1 and then press the green button y to get to the next menu option d Press the blue button gt to start editing The first digit flashes to indicate it can be edited e Press the green button repeatedly to edit the flashing digit f Press the blue button gt to move to the next digit The digit flashes to indicate it can be edited g Repeat steps e and f until the last digit is flashing and edited as required h Press the blue button gt to confirm the new b rEF value None of the digits should now be flashing i If the new value is correct press the red button to save The display changes to the next menu option j Ifthe new value is incorrect press the blue button gt to exit to the menu The b rEF re appears re start at step b or press 4 for the next menu Screen display 4 and 20 4mA level defaults 0 000 m 00 00 ft 000 0 in 20mA level defaults 7 500 m 24 60 ft 295 2 in The 4 mA level may be set above or below the 20 mA level to suit the monitoring or control equipment NOTE To set the 4 and 20 mA levels by ranging the transmitter to a fixed target such as the level in the tank at any particular time skip these menu options by pressing the green button 4 twice to get to the next menu option NOTE See Figure 4 1 on page 4 3 fo
8. mobrey com Process Management Mobrey MSP422 Reference Manual IP2013 Rev BA February 2012 BEFORE YOU INSTALL General Considerations 3 2 The MSP 422 is used for level measurement The transmitter must be installed in a location where it is protected from ultraviolet radiation to prevent long term degradation of the plastics used e g shrouded from direct sunlight It is important to correctly position the transmitter for reliable ultrasonic level measurement For maximum accuracy and stability of the level measurement reading the transmitter should always be shrouded from direct sunlight and radiated heat The transmitter may be site tuned to deal with most application conditions but it is recommended that the following guidelines be adopted where relevant NOTE The Mobrey MSP422 is designed to be mounted in a non metallic fitting or flange The use of metallic fittings flanges is not recommended Guidelines a Installation must be carried out by suitably trained personnel in accordance with the applicable code of practice b Ifthe equipment is likely to come into contact with aggressive substances it is the responsibility of the user to take suitable precautions that prevent it from being adversely affected thus ensuring that the type of protection is not compromised Aggressive Substances are acidic liquids or gases that may attack metals or solvents that may affect polymeric materials Suitable
9. operation once power is restored 4 11 Reference Manual IP2013 Rev BA February 2012 Mobrey MSP422 4 12 Reference Manual IP2013 Rev BA February 2012 Mobrey MSP422 Section 5 SAFETY MESSAGES mobrey Service and Troubleshooting Safety Messages oo oocoococcnorn eee page 5 1 SORVICING e eene See aaa ee ace dee ins echt eee eae ew wee es page 5 2 Diagnostics for The MSP422 20200e eee eee page 5 2 Procedures and instructions in this section may require special precautions to ensure the safety of the personnel performing the operations Information that raises potential safety issues is indicated by a warning symbol AA Please refer to the following safety messages before performing an operation preceded by this symbol A WARNING Explosions could result in death or serious injury The Mobrey MSP422 is only for use in a non hazardous location Failure to follow safe installation and servicing guidelines could result in death or serious injury Make sure only qualified personnel perform the installation Use the equipment only as specified in this manual Failure to do so may impair the protection provided by the equipment Do not perform any service other than those contained in this manual unless you are qualified High voltage that may be present on leads could cause electrical shock Avoid contact with leads and terminals Make sure the main power to the Mobrey MSP422 tran
10. selection A Temperature 4 psi 0 0 25 bar F C 4 F 20 C 158 F 70 C The maximum load resistance can be determined from Figure A 2 R Ohms 1244 NOTE R Maximum Load Resistance U External Power Supply Voltage U V Reference Manual IP2013 Rev BA February 2012 Mobrey MSP422 DIMENSION DRAWINGS Figure A 3 Transmitter Dimensions Nylon filled Glass Housing Note Dimensions are in inches mm 05 7 9144 M20 x 1 5 GE Cable Entry 5 3 135 gt E M 2 36 60 A F Hexagon Sidi as lt 2 6 65 A 3 Reference Manual IP2013 Rev BA Mobrey MSP422 February 2012 Figure A 4 The 2 in NPT BSPT mounting bracket Note Dimensions are in inches mm Note The combined weight of bracket and disc is 16 oz 0 5 kg 2 in NPT BSPT Threaded PVC Disc Stainless Steel Bracket 0 51 13 SIDE VIEW 2 95 75 0 35 9 o 166 END VIEW 2 24 57 No 4X 13 Long Self Tap Screw 3 Positions Carbon Steel Zinc Plated 102 ACTUAL VIEW WITH TRANSMITTER MOUNTED A 4 Reference Manual IP2013 Rev BA February 2012 Mobrey MSP422 Appendix B SAFETY MESSAGES mobrey Product Certifications Safety Messages ccs e cece eee page B 1 Manufacturing Location lt cece eee eee page B 2 European Union Directive Information page B 2 Non hazardous Locat
11. 3 m blanking zone of the transmitter 3 When installing in a tank with a nozzle or stand off Figure 3 2 on page 3 6 a Use PTFE tape on the screw thread Figure 3 2 on page 3 6 b Lower transmitter into the tank through the process connection c Turn the transmitter until it is properly secured in the process connection Figure 3 2 on page 3 6 d Tighten to a torque of 1 5 Ibf ft 2 Nm using the hexagon Do not use the transmitter housing to tighten NOTE If the transmitter face does not protrude into the vessel note the dimensions in Table 3 1 for Figure 3 2 and ensure that the nozzle vessel weld is smooth and free from internal weld beads or other projections 4 When installing using a bracket kit Figure 3 3 on page 3 6 a Attach bracket to the disc using the 3 screws provided b Attach bracket and disc to a support The combined weight of bracket and disc is 16 oz 0 5 kg For transmitter weight see Specifications on page A 1 c Use PTFE tape on the screw thread of the transmitter Figure 3 2 on page 3 6 d Insert the transmitter into the disc e Tighten to a torque of 1 5 Ibf ft 2 Nm using the hexagon Do not use the transmitter housing to tighten NOTE The bracket kit contains a stainless steel angle bracket and PVC threaded disc which may be used to mount the transmitter on a support over the liquid surface The bracket and disc dimensions are in Figure A 4 on page A 4 3 5
12. G max 1 5 mm 15 AWG Materials of Construction Wet side Material PVDF Body And Cover Material Glass filled Nylon Cover Seal Silicone rubber Cover Screws 316 Stainless Steel Transducer Body Seal EPDM Mechanical Mounting Thread Size 2 in NPT or 2 in BSP Optional flange accessories available Weight of Transmitter 2 0 lb 0 9 kg Measuring Temperature Compensation Automatic Integral temperature compensation mobrey www mobrey com EMERSON Process Management Mobrey MSP422 Reference Manual IP2013 Rev BA February 2012 Environment Ambient Temperature 4 to 158 F 20 to 70 C Process Temperature 4 to 158 F 20 to 70 C Process Pressure 4 to 44 psi 0 25 to 3 0 bar Ingress Protection IP 66 Electromagnetic Compatibility EN61326 Class B Certifications CE mark 1 Temperature 68 F 20 C Pressure 1013 mbar atmospheric pressure and Relative Humidity 50 2 See page A 2 onwards for approval temperature ranges TEMPERATURE AND PRESSURE RATINGS Figure A 1 Process Temperature and Pressure Diagram LOAD LIMITATIONS Figure A 2 Load Limitations The process temperature pressure rating depends on the design of the transmitter in combination with the flange materials Pressure psi bar 44 psi 3 bar OPERATING RANGE The final rating may be limited by flange
13. Precautions are regular checks as part of routine inspections or establishing from the material s datasheet that it is resistant to specific chemicals c The equipment must only be cleaned with a damp cloth d The equipment is not intended to be repaired by the user and is to be replaced by an equivalent unit Repairs should only be carried out by the manufacturer or approved repairer e The transmitter is Double Insulated and therefore Protective Earthing is not required f To maintain protection against the possible spread of fire the supply to the equipment must be limited to 3 75 Amps by a fuse or other means g Note that if the equipment is used in a manner not specified by the manufacturer the protection afforded by the equipment may be impaired h The transmitter complies with the European Directive for Electro Magnetic Compatibility EMC Class B To ensure electro magnetic compatibility in any member state it should not be installed in a residential area NOTE It is not advisable to mount the transmitter in close proximity to a source of electrical noise such as a variable speed drive or other high powered electrical device Reference Manual IP2013 Rev BA February 2012 Mobrey MSP422 MECHANICAL INSTALLATION Mounting Guidelines Considerations a The transmitter should be mounted above the liquid surface using the 2 inch thread provided but not closer than 12 in 0 3 m to the surface The tr
14. Reference Manual IP2013 Rev BA February 2012 Mobrey MSP422 Mobrey MSP422 Ultrasonic Liquid Level Transmitter mobrey EMERSON www mobrey com Process Management Reference Manual Rev BA Rev BA February 2012 Mobrey MSP422 Mobrey MSP422 Ultrasonic Liquid Level Transmitter NOTICE Read this manual before working with the product For personal and system safety and for optimum product performance make sure you thoroughly understand the contents before installing using or maintaining this product AACAUTION The products described in this document are NOT designed for nuclear qualified applications This device complies with part 15 of the FCC rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation mobrey EMERSON www mobrey com Process Management Reference Manual Rev BA Rev BA February 2012 Mobrey MSP422 Table of Contents SECTION 1 Safety Messages ee e eens 1 1 Introduction Manual Overview ccoo Rata 1 2 Customer Support oooooccococ eee tees 1 2 Product Recycling Disposal 00 eee eee 1 2 SECTION 2 Theory of Operation nda didas 2 1 Transmitter Overview Components of the Transmitter 2 0 0 0 000 ccc cece eee neces 2 2 SECTION 3 Safety Messages c
15. US LOCATION CERTIFICATIONS American and Canadian Certifications B 2 Mobrey Limited Slough Berkshire United Kingdom NOTE Refer to the housing label to identify the approvals for your transmitter The EC declaration of conformity for all applicable European directives for this product can be obtained by contacting our local sales representative Pressure Equipment Directive PED 97 23 EC e The MSP422 is outside the scope of the PED Directive Electro Magnetic Compatibility EMC 2004 108 EC e EN 61326 1 2006 NOTE Refer to the housing label to identify the approvals for your transmitter Factory Mutual FM Ordinary Location Certification The transmitter has been examined and tested to determine that the design meets basic electrical mechanical and fire protection requirements by FM a nationally recognized testing laboratory NRTL as accredited by the Federal Occupational Safety and Health Administration OSHA Canadian Standards Association CSA Ordinary Location Certification The transmitter has been examined and tested to determine that the design meets basic electrical mechanical and fire protection requirements by CSA a nationally recognized testing laboratory as accredited by the Standards Council of Canada SCC Reference Manual IP2013 Rev BA February 2012 Mobrey MSP422 The Emerson logo is a trade mark and service mark of Emerson Electric Co Rosemount is a registered tradem
16. ansmitter does not detect any liquid surface closer than 12 in 0 3 m to the transmitter face See Mounting the Transmitter Above the Liquid Surface on page 3 5 Optional flanges and bracket kits are available to help mounting The transmitter should be mounted vertically to ensure a good echo from the liquid surface The beam half angle of the transmitter is 6 degrees See Figure 3 1 on page 3 4 Obstructions in the tank or well may generate echoes which can be confused with the real liquid surface echo Obstructions within the beam angle generate strong false echoes Wherever possible the transmitter should be positioned to avoid false echoes To avoid detecting unwanted objects in the tank or well it is advisable to maintain a distance of at least 1 3 in from the center line of the transmitter for every foot 11 cm per meter range to the obstruction No false echoes are generated if the transmitter is located near the side of the tank or well and the wall is smooth and free of protrusions However there will still be a reduction in the echo size It is recommended that the transmitter be mounted no closer than 12 in 0 3 m to the wall to avoid a large reduction in the echo size If the transmitter is mounted in an enclosed tank with a domed top avoid mounting the transmitter in the center of the tank roof because this could act as a parabolic reflector and create unwanted echoes Avoid applications where heavy conden
17. ark of Rosemount Inc Mobrey is a registered trademark of Mobrey Ltd All other marks are the property of their respective owners We reserve the right to modify or improve the designs or specifications of product and services at any time without notice 2012 Mobrey Ltd All rights reserved International Americas Emerson Process Management Emerson Process Management Mobrey Ltd Rosemount Measurement 158 Edinburgh Avenue 8200 Market Boulevard Slough Berks SL1 4UE UK Chanhassen MN 55317 USA T 44 0 1753 756600 Tel USA 1 800 999 9307 F 44 0 1753 823589 Tel International 1 952 906 8888 www mobrey com Fax 1 952 906 8889 EMERSON IP2013 Rev BA 02 12 Process Management
18. cc cece eee nnrir rrr 3 1 Installation Before You Install asian cute canst mae Bhd Cake wee a 3 2 General Considerations 00 cece eee eee eee 3 2 Mechanical Installation eee 3 3 Mounting Considerations ccc eee eee ee 3 3 Liquid Surface Conditions 0c eee eee 3 4 In tank ENGGIS 5 55 cuca oxi il Ba pet va ol 3 4 Mounting the Transmitter Above the Liquid Surface 3 5 Electrical Installation 0 0 cece eee 3 7 Cabling the Transmitter 0 000000 c cee ee eee 3 7 After Completing the Wiring 000 eee eee eee 3 7 Lightning Surge Protection and Other Loop Devices 3 8 SECTION 4 Safety Messages 2 ccc eee aa ae eaaa 4 1 Starting up A A 4 2 Power UDe ereng de Esen A kee ede ta 4 2 Before Programming lt 0c cece ee eee 4 2 MSP422 Menu Map 00 0c eee eee eee 4 3 Programming The MSPA422 0c eee 4 4 Display Units sa aaa Sea ee dale ee ed de eaves Saas 4 4 First Measurements aa eee eee eee 4 5 Setting the Bottom Reference 0 00 anana 4 6 Setting 4 mA and 20 mA Levels 000 eee eee 4 6 Setting the Output Damping 0 cca o 4 7 Selecting the Action on Alarm Condition 4 8 Setting 4 mA and 20 mA Levels Using Ranging 4 9 Learn About Echoes From False TargetS 4 10 Final CHECKS oui siia pa a a bee ed a S 4 11 Power Fallure
19. e blue button gt again to get to the echo size This is a scale of 0 to 100 It is possible to record a value greater than 100 With the display in this mode the central cursor will flash once for every echo received which under normal circumstances will be once per second NOTE It is useful at this point to check that the maximum echo size available is being received Adjust the position of the instrument until the highest echo size is continually shown In most applications the signal strength will vary over a wide range 20 to 80 Press the blue button gt again to return to the original level reading and start the calibration routine NOTE The output of the transmitter will vary during programming as the various default values are changed The display will automatically revert to the level or distance reading from any other display after a period of four minutes 4 5 Mobrey MSP422 Reference Manual IP2013 Rev BA Setting the Bottom Reference Setting 4mA and 20 mA Levels 4 6 February 2012 Screen display b rEF Defaults 8 000 m 26 24 ft 314 9 in NOTE See Figure 4 1 on page 4 3 for a map ofthe programming menu structure and how to access all the menu options To change the bottom reference b rEF setting a If entering the menu system from the PV display press the green button 4 to indicate the b rEF menu option see above note b Press the blue button
20. effects of turoulence and ripples on the liquid surface It would be unusual to select a value greater than 30 seconds A value of zero may be edited in which case no smoothing is applied to the Current Output and transmitter readings immediately change the output 4 7 Mobrey MSP422 Reference Manual IP2013 Rev BA February 2012 Selecting the Action on Alarm Condition 4 8 NOTE The MSP422 transmits nominally at once per second Therefore a damping time of zero will not necessarily give an immediate response NOTE See Figure 4 1 on page 4 3 for a map of the programming menu structure and how to access all the menu options To change the output damping a If entering the menu system from the PV display press the green button 4 repeatedly until the a menu option is indicated see above note b Press the blue button gt to enter the menu d The display indicates the present damping value c Ifthis value is correct press the red button and then the green button to get to the next menu option d Press the blue button gt to start editing The first digit flashes to indicate it can be edited e Press the green button repeatedly to edit the flashing digit f Press the blue button gt to select the next digit The digit flashes to indicate it can be edited g Repeat steps e and f until the last digit is flashing and edited as required h Press the blue button gt to confi
21. ference Manual IP2013 Rev BA February 2012 OVERVIEW Power Up Before Programming 4 2 The Mobrey MSP422 ultrasonic level transmitter is operated from a menu of parameters each held in a specific memory location within the transmitter The memory locations may be pictured as a matrix and navigated for programming the instrument using y and gt steps The Integral Display Menu structure is shown in Figure 4 1 on page 4 3 The transmitter is pre programmed at the factory with a value in each parameter location so that when the power is first applied the transmitter gives a sensible reading This section details the local programming using the push buttons provided inside the transmitter When the power is turned on the transmitter takes several seconds to initialize The display will run a set up routine first illuminating all display characters and then showing the software revision number Finally a full set of zeros is displayed while the microprocessor identifies the correct return echo After these checks are complete the display indicates the live measurement based upon the factory default values in memory On a new instrument aimed at a good target the transmitter calculates a level reading based upon the default value for the bottom reference The transmitter is now ready to be set up with details of the application The transmitter may be programmed prior to or after installation All programmed data is re
22. fore You Install saa aaa eaaa aaa page 3 2 Mechanical Installation oooooooo page 3 3 Electrical Installation oo oooomooom page 3 7 Procedures and instructions in this section may require special precautions to ensure the safety of the personnel performing the operations Information that raises potential safety issues is indicated by a warning symbol A Please refer to the following safety messages before performing an operation preceded by this symbol Z WARNING Explosions could result in death or serious injury The Mobrey MSP422 is only for use in a non hazardous location AAWARNING Failure to follow safe installation and servicing guidelines could result in death or serious injury Make sure only qualified personnel perform the installation Use the equipment only as specified in this manual Failure to do so may impair the protection provided by the equipment Do not perform any service other than those contained in this manual unless you are qualified Process leaks could result in death or serious injury Make sure that the transmitter is handled carefully Z WARNING High voltage that may be present on leads could cause electrical shock Avoid contact with leads and terminals Make sure the main power to the Mobrey MSP422 transmitter is off and the lines to any other external power source are disconnected or not powered while wiring EMERSON www
23. ignal proportional to that level An LCD screen inside the enclosure displays the selected measurement Programming of the MSP422 is achieved using the integral push buttons inside the enclosure and the menu system shown on the LCD screen The MSP422 may be mounted in a non hazardous areas only Distance Bottom Reference Level EMERSON www mobrey com Process Management Mobrey MSP422 Reference Manual 1P2013 Rev BA February 2012 COMPONENTS OF THE TRANSMITTER Figure 2 2 The Mobrey MSP Series Transmitters 2 2 The Mobrey MSP422 has a housing containing advanced electronics for signal processing and terminals for connecting the external power supply The electronics produces an ultrasonic signal from the transmitter face It is a two wire loop powered transmitter the two wires are used for both 24 Vdc power supply connections and the 4 20 mA analog output signal A two core shielded screened cable is required not supplied A comprehensive specification for the Mobrey MSP422 is in the section Specifications on page A 1 MSP422 FEATURES 4 Electronics M20 Housing Conduit _ gt Thread Supplied With 1 x Cable Gland and Dust Cap 2 in Mounting lt Thread A Transmitter Face Reference Manual IP2013 Rev BA February 2012 Mobrey MSP422 Section 3 SAFETY MESSAGES mobrey Installation Safety Messages cee e eects page 3 1 Be
24. ion Certifications page B 2 Procedures and instructions in this section may require special precautions to ensure the safety of the personnel performing the operations Information that raises potential safety issues is indicated by a warning symbol AA Please refer to the following safety messages before performing an operation preceded by this symbol Z WARNING Explosions could result in death or serious injury The Mobrey MSP422 is only for use in a non hazardous location Z WARNING Failure to follow safe installation and servicing guidelines could result in death or serious injury Make sure the transmitter is installed by qualified personnel and in accordance with applicable code of practice Use the equipment only as specified in this manual Failure to do so may impair the protection provided by the equipment Do not perform any service other than those contained in this manual unless you are qualified Z WARNING High voltage that may be present on leads could cause electrical shock Avoid contact with leads and terminals Make sure the main power to the transmitter is off and the lines to any other external power source are disconnected or not powered while wiring the transmitter EMERSON www mobrey com Process Management Mobrey MSP422 Reference Manual IP2013 Rev BA February 2012 MANUFACTURING LOCATION EUROPEAN UNION DIRECTIVE INFORMATION NON HAZARDO
25. is not recommended The 4 mA level may be set above or below the 20 mA level to suit the monitoring or control equipment NOTE The MSP422 measures and calculates in metres The display units are derived as a last operation using a pre programmed conversion factor Reference Manual IP2013 Rev BA February 2012 Mobrey MSP422 First Measurements Figure 4 2 Bottom Reference With the transmitter installed and display units selected the display will show what the instrument calculates as the liquid depth level This value is calculated by the microprocessor as being the difference between the distance to target being measured and the default value for the datum or bottom reference b rEF Jr Distance to target Bottom Reference Depth Level Before changing any of the default values press the blue button to change the PV display to indicate distance to target as measured by the transmitter from the transmitter face This value is shown alternately with the text dist to indicate the display is in distance mode The calculation can be checked against a manual measurement if required NOTE A useful feature at this stage is that the transmitter can be used as an electronic tape measure With an empty tank or vessel the transmitter will read the distance to the bottom of the tank This distance can be noted and later used when setting b rEF Press th
26. menu option is indicated see above note b Press the blue button to enter the menu AL The display indicates the present action setting c Ifthis action is correct press the red button and then the green button to get to the next menu option d Press the blue button gt to start editing The action flashes to indicate it can be edited e Press the green button 4 repeatedly to scroll through the actions f Press the blue button gt to confirm an action The flashing then stops g If the new action is correct press the red button to save The display changes to the next menu option h If the new action is incorrect press the blue button gt to exit to the menu The AL re appears re start at step b or press y for the next menu Screen display S 4 and S 20 NOTE Ifthe 4 and 20 mA levels are programmed as described above this menu can be skipped it overwrites previously entered data for them Press the green button Y to get to the final menu option Lrn This is for setting the 4 mA or 20 mA levels by ranging the instrument to a known target e g the present level in a vessel NOTE See Figure 4 1 on page 4 3 for a map of the programming menu structure and how to access all the menu options To change the 4 mA level a If entering the menu system from the PV display press the green button 4 repeatedly until the s 4 menu option is indicated see above note b E
27. nsure the target is the 4 mA level and with the display indicating that level press the blue button gt c The display indicates the present 4 mA level setting not the new level reading If this setting is correct press the red button and then the green button to get to the next menu option d Press the blue button gt to start editing The display flashes alternately 4 and the new level reading e Press the blue button gt to confirm the new level reading is the new 4 mA level f Ifthe new 4 mA level is correct press the red button to save The display changes to the next menu option g Ifthe new 4 mA level is incorrect press the blue button gt to exit to the menu The menu option S 4 re appears re start at step b or press 4 for the next menu option 4 9 Mobrey MSP422 Reference Manual IP2013 Rev BA February 2012 Learn About Echoes From False Targets 4 10 NOTE See Figure 4 1 on page 4 3 for a map of the programming menu structure and how to access all the menu options To change the 20 mA level a If entering the menu system from the PV display press the green button 4 repeatedly until the s 20 menu option is indicated see above note b Ensure the target is the 20 mA level and with the display indicating that level press the blue button gt c The display indicates the present 20 mA level setting not the new level reading If this value is correct press the red
28. ntact Mobrey Measurement for details of longer range instruments Flashing LE With Level Reading This means that the transmitter is no longer receiving satisfactory echoes from the liquid surface This may be because of one of a variety of reasons for example excessive foaming turbulence or ullage vapors First check that the transmitter face is free from contamination and condensation The transmitter will operate with some condensation on the face but excessive condensation may cause operational problems If the vessel cannot be adequately vented to prevent condensation forming contact Mobrey Measurement for alternative solutions Second check that the instrument is still vertically aligned above the liquid surface and check the echo received size If the echo size is small lt 3 re position the transmitter or modify the vessel for the transmitter to operate above a more acceptable area of the liquid surface Lost echo LE is signalled when there has been no return echo for 10 seconds Within the 10 seconds the output will remain fixed If after the 10 seconds no satisfactory has been received the output will increase to the current selected level and the display flashes alternately LE and the last valid level reading If a satisfactory echo is received within the 10 seconds a new output is established and the LE timer is re set Reference Manual IP2013 Rev BA February 2012 Mobrey MSP422 Appendix A
29. r a map of the programming menu structure and how to access all the menu options To change the 4 mA value a If entering the menu system from the PV display press the green button 4 repeatedly until the 4 menu option is indicated see above note b Press the blue button gt to enter the menu for the 4 mA level The display indicates the present value of the 4 mA level Reference Manual IP2013 Rev BA February 2012 Mobrey MSP422 Setting the Output Damping c If this value is correct press the red button and then press the green button y to get to the next menu option d Press the blue button gt to start editing The first digit will flash to indicate it can be edited e Press the green button repeatedly to edit the flashing digit f Press the blue button gt to move to the next digit The digit flashes to indicate it can be edited g Repeat steps e and f until the last digit is flashing and edited as required h Press the blue button gt to confirm the new 4 mA level None of the digits should now be flashing i If the new value is correct press the red button to save The display changes to the next menu option j Ifthe new value is incorrect press the blue button gt to exit to the menu The 4 re appears re start at step b or press J for the next menu NOTE See Figure 4 1 on page 4 3 for a map of the programming menu structure and how to access all the menu option
30. ransmitter requiring an external 24 Vdc power supply There is one M20x1 5 cable entry A suitable conduit system or cable gland must be used to keep the weather proof rating To cable the transmitter Make sure that the power supply is switched off Remove the cover of the transmitter housing Pull the cable through the cable gland conduit Wire the transmitter as shown in Figure 3 4 Connect the cable screen shield to ground at one end only OPO ee nai Replace the cover tighten the cable gland 0 15 to 0 31 in G4 to 8 mm Min 12 Vdc After Completing the Wiring T1 24 Vde T2 0 Vdc 12 to 30 Vdc 0 Vdc Max 3000 m 9750 ft To maintain the weather proof rating and hazardous area protection of the transmitter ensure all cable glands blanking plugs and seals are in good condition Check that the cover seal is in good condition and not twisted or misaligned in the seal location groove When replacing the cover tighten the three cover screws evenly to exert uniform pressure on the cover seal 3 7 Reference Manual 1P2013 Rev BA Mobrey MSP422 February 2012 Lightning Surge If the area is prone to lightning strikes or voltage surges a suppressor device Protection and Other may be installed between the transmitter and the control unit Loop Devices If an additional loop powered device or separately powered device is included in the two wire loop the transmitter mu
31. rers or agitators can cause a vortex Mount the transmitter off center of any vortex to maximize the return echo If stirrer blades become uncovered they create echoes as they pass through the ultrasonic beam The transmitter can learn to ignore these false echoes see Learn About Echoes From False Targets on page 4 10 In tanks with rounded or conical bottoms mount the transmitter off center If needed a perforated reflector plate can be installed on the tank bottom directly under the transmitter center line to ensure a satisfactory return echo Avoid detecting pump casings as the liquid falls away by not mounting the transmitter directly above pumps If this is not possible fine tuning of the transmitter on site may be required Reference Manual IP2013 Rev BA February 2012 Mobrey MSP422 Mounting the Transmitter Above the Liquid Surface A 2 in thread is provided to mount the transmitter The thread form is either 2 in BSPT or 2 in NPT and is clearly marked on the hexagon of the transmitter body NOTE The Mobrey MSP422 is designed to be mounted in a non metallic fitting or flange The use of metallic fittings flanges is not recommended To help installation flange accessories and bracket kits are available from Mobrey Procedure 1 Ensure that the transmitter is perpendicular to the liquid surface to maximize the return echo size 2 Check that the maximum liquid level will not enter the 12 in 0
32. rm the new damping value None of the digits should now be flashing i If the new value is correct press the red button to save The display changes to the next menu option j Ifthe new value is incorrect press the blue button gt to exit to the menu The d re appears re start at step b or press J for the next menu Screen display AL Default Hold The transmitter signals an alarm condition if the target echo is lost for more than 10 seconds There are three options for an alarm condition Hi The current on the two wire loop will increase to 21 mA and remain there until a correct target echo is recovered The display flashes alternately LE and the alarm action Hold The current will freeze at the value it was last reading and remain there until a correct target echo is recovered The display flashes alternately LE and the last valid reading Lo The current on the two wire loop will decrease to 3 6 mA and remain there until a correct target echo is recovered The display flashes alternately LE and the alarm action NOTE See Figure 4 1 on page 4 3 for a map of the programming menu structure and how to access all the menu options Reference Manual IP2013 Rev BA February 2012 Mobrey MSP422 Setting 4 mA and 20 mA Levels Using Ranging To change from the default action of Hold a If entering the menu system from the PV display press the green button 4 repeatedly until the AL
33. rning symbol A Refer to the safety messages listed at the beginning of each section before performing an operation preceded by this symbol A WARNING Failure to follow these installation guidelines could result in death or serious injury Make sure only qualified personnel perform the installation Use the equipment only as specified in this manual Failure to do so may impair the protection provided by the equipment Explosions could result in death or serious injury The Mobrey MSP422 is only for use in a non hazardous location Electrical shock could cause death or serious injury lt Use extreme caution when making contact with the leads and terminals Z WARNING Any substitution of non recognized parts may jeopardize safety Repair e g substitution of components etc may also jeopardize safety and is under no circumstances allowed mobrey EMERSON www mobrey com Process Management Mobrey MSP422 Reference Manual IP2013 Rev BA February 2012 MANUAL OVERVIEW CUSTOMER SUPPORT PRODUCT RECYCLING DISPOSAL This manual provides installation configuration and maintenance information for the Mobrey MSP422 ultrasonic level transmitter Section 2 Transmitter Overview Section 3 Installation Section 4 Starting up Section 5 Service and Troubleshooting Appendix A Reference Data Appendix B Product Certifications For the latest customer support information visit www mobrey com
34. s To change the 20 mA value a If entering the menu system from the PV display press the green button 4 repeatedly until the 20 menu option is indicated see above note b Press the blue button gt to enter the menu for the 20 mA level The display indicates the present value of the 20 mA level c If this value is correct press the red button and then press the green button y to get to the next menu option d Press the blue button gt to start editing The first digit flashes to indicate it can be edited e Press the green button 4 repeatedly to edit the flashing digit f Press the blue button gt to move to the next digit The digit flashes to indicate it can be edited g Repeat steps e and f until the last digit is flashing and edited as required h Press the blue button gt to confirm the new 20 mA level None of the digits should now be flashing i If the new value is correct press the red button to save The display changes to the next menu option j Ifthe new value is incorrect press the blue button gt to exit to the menu The 20 re appears re start at step b or press J for the next menu Screen display d Default 10 The damping value is a time constant in seconds and is applied as smoothing to the level reading and the output current A new value may be entered up to 999 seconds A larger value will have the effect of smoothing out rapid changes of level and smooth out the
35. sation could form on the transmitter face If the transmitter is mounted in a stand off or nozzle the transmitter face should protrude at least 0 2 in 5 mm into the tank If this is not possible see Mounting the Transmitter Above the Liquid Surface on page 3 5 If the transmitter is used in environments where direct sunlight can cause high surface temperatures on exposed instruments a sun shade is recommended 3 3 Mobrey MSP422 Reference Manual IP2013 Rev BA February 2012 Figure 3 1 Min And Max Distances From Tank Wall Liquid Surface Conditions In tank Effects 3 4 Max 3 y 1 4 vil la ly Use Non metallic v Fitting Flange 6 Beam O0 Half Angle C 1 3 in ft 11 cm m 4 C Min 12 in 0 3 m Guidelines a b Foaming liquids can reduce the size of the returned echo because foam is a poor ultrasonic reflector Mount an ultrasonic transmitter over an area of clear liquid such as near the inlet to a tank or well In extreme conditions or where this is not possible the transmitter may be mounted in a vented stilling tube provided that the inside measurement of the stilling tube is at least 4 in 100 mm and is smooth and free from joints or protrusions It is important that the bottom of the stilling tube stays covered to prevent the ingress of foams Avoid mounting the transmitter directly over any inlet stream Guidelines a b Stir
36. smitter is off and the lines to any other external power source are disconnected or not powered while wiring the transmitter EMERSON www mobrey com Process Management Mobrey MSP422 Reference Manual IP2013 Rev BA February 2012 SERVICING DIAGNOSTICS FOR THE MSP422 General Troubleshooting Error Messages 5 2 The only maintenance required is to occasionally check the transmitter face to ensure it remains clean and check that the cover seal wiring and cable glands are in good condition There are no spare parts for the Mobrey MSP422 If a problem persists contact Mobrey Measurement for advice No Display Check the power supply Ensure there is a minimum of 12 Vdc at the instrument terminals Check that the cable insulation is not preventing contact at the terminal block No Level Reading Check that the instrument is ticking about once per second If there is no ticking the instrument should be replaced Flashing LE With 0000 The transmitter is not receiving a return echo which could mean the liquid surface is poor or that it is beyond the range of 26 ft 8 m of the instrument Change the position of the transmitter or contact Mobrey Measurement for information on longer range instruments This means that the transmitter is not receiving a return echo possibly because the liquid surface is poor or beyond the range 26 ft 8 m of the instrument Re locate the instrument or co
37. st receive a minimum voltage of 12 Vdc at 21 mA loop current See Load Limitations on page A 2 3 8 Reference Manual IP2013 Rev BA February 2012 Mobrey MSP422 Section 4 SAFETY MESSAGES mobrey Starting up Safety Messages cee e eee eee eee page 4 1 OvervieW aaa aa aaa aaa aaa ees page 4 2 Programming The MSP422 aaa aaa aaa page 4 4 Final Checks siii satan aa vie ede ee eee es page 4 11 Power Failure a cece eee eee eee eens page 4 11 Procedures and instructions in this section may require special precautions to ensure the safety of the personnel performing the operations Information that raises potential safety issues is indicated by a warning symbol A Refer to the safety messages listed at the beginning of each section before performing an operation preceded by this symbol Z WARNING Explosions could result in death or serious injury lt The Mobrey MSP422 is only for use in a non hazardous location A WARNING Failure to follow safe installation and servicing guidelines could result in death or serious injury Make sure only qualified personnel perform the installation Use the equipment only as specified in this manual Failure to do so may impair the protection provided by the equipment Do not perform any service other than those contained in this manual unless you are qualified EMERSON www mobrey com Process Management Mobrey MSP422 Re
38. tained in the transmitter memory after the power is turned off Important notes to help you program the transmitter a Do not allow rain or water to enter the transmitter during programming or the circuit boards may be damaged b See the instructions below on how to use the push buttons to navigate through the programming menu and select or enter application data c Push the buttons firmly but not too hard to avoid damaging the circuit boards Also to avoid entering incorrect data do not push the buttons too fast d Holding down the green button Y scrolls through any option list e Pressing the red button at certain locations in the menu returns you to the previous level in the menu see Figure 4 1 on page 4 3 Note however if the red button is pressed after a menu option selection has been made or new data has been entered i e stopped flashing this option selection new data will automatically be saved see Figure 4 1 Reference Manual IP2013 Rev BA February 2012 Mobrey MSP422 MSP422 Menu Map Figure 4 1 MSP422 Menu Map Ranging Ranging Learn echo from false target LEVEL diSt Toggle Units b rEF b rEF Display Bottom Ref 4 O 4 Disp 4mA Level 20 20 Disp 20mA Level d d Display Damping AL AL Display Alarm Action S 4 S 4 Disp Level for 4mA S 20 S 20 Disp Level for 20mA Lrn Lrn Displa
39. transmitter output current while the liquid level moves through this window which is equivalent to a distance of 8 in 20 cm NOTE See Figure 4 1 on page 4 3 for a map of the programming menu structure and how to access all the menu options To clear all the stored false echoes a If entering the menu system from the PV display press the green button 4 repeatedly until the Lrn menu option is indicated see above note b Press the blue button gt to enter the Lrn menu c With the display indicating LrnX press and hold the green button y for ten seconds to clear the memory The display then indicates Lerno d Press the red button to exit to the menu e Press the green button J to exit the menu system and change to the PV display Final checks a Check the display is reading correctly b You may wish to check echo size again before re fitting the enclosure lid c Check that the cover seal is in place in the cover and is good condition lt should not be twisted or kinked in any way d Carefully set the cover on the transmitter and tighten the three cover screws equally to seal the instrument e Check that the cable gland is securely tightened and check sealing on the cable sheath All parameters are held in EPROM memory In the event of a power failure or disconnection from the power supply the transmitter will remember all of it s last parameter values and will resume correct
40. u option is indicated see above note b Press the blue button gt to enter the Lrn menu The display indicates Lrnx where X 0 1 or 2 is the number of stored false target echoes c To exit to the menu at this stage press the red button and then the green button J to get to the next menu option d To store a new false echo hold the blue button down gt for five seconds e The display now alternately flashes Lrn and the false target position After four seconds the false echo target position is stored and the display re indicates Lrnx alternating with the distance to the stored echo Reference Manual IP2013 Rev BA February 2012 Mobrey MSP422 FINAL CHECKS POWER FAILURE f Press the red button to save this false echo and exit to the menu However if this false echo shouldn t be saved press the blue button gt to exit to the menu g To store another false target echo re start from step b h Press the green button 4 to exit the menu and return to the PV display NOTE If there are two false echoes stored Lrn2 the transmitter will not allow another echo to be stored until the memory is cleared see next procedure NOTE When a false echo is stored the transmitter sets up a window around the false target and ignores any echo from that window unless the echo received from the liquid surface is larger than the stored false echo There may be no change in the
41. y Lrn x where x records saved LEVEL Di dish Echo Size b rEF Display Bottom Ref Edit Bottom Ref b rEF Display 4mA Level Edit 4mA Leve O 4 Disp 20mA Level Edit 20mA Level 20 Display Damping Editdamping d Display Alarm Action Edit Alarm Action AL Display Level for 4mA Flash 4 with Lvl O S 4 Display Level for 20mA Flash 20 with Lv O S 20 Display Lrn x New record 5s Clear recs 10s Lrn Echo Size LEVEL b rEF Edit Bottom Ref Edit flashing digit Confirm edited digit Bottom Ref Edit 4mA Level Edit flashing digit O Confirm edited digit 4mA Level Edit 20mA Level Edit flashing digit O Confirm edited digit 20mA Level Edit Damping Edit flashing digi D Confirm edited digit Damping Edit action options Cycle thu options Confirm options Flash 4 wi vel Disp Lvl for 4mA Level Display Level for 20mA New rd flashin record no echo Not save Lrn Save Lm Confirm Bottom Ref Not save b rEF Save 4 Confirm 4mA Level Not save 4 Save 20 Confirm 20mA Level Not save 20 Save d Confirm Dampin Not save d 6 Save AL Display Alarm Action Not save AL Save S 4 Display Level for 4mA S 4 To Save S 20 S 20 Save it
Download Pdf Manuals
Related Search