Operating Instructions
Contents
1. 1 7 order of assembly e It may be necessary or advantageous to install the paddle at the very end of the installation procedure e Recommendation Apply a threadlocking adhesive such as Loctite to all the locking screws MBA 200 Operating Instructions 8011417 V2 2 MBA Instruments GmbH Germany 5 Bin level Indicator MBA 200 3 3 Installation Operational conditions gt Observe temperature specifications on the nameplate example page 11 7 1 explanations page 4 2 4 gt Keep the following pressure limits 50 300 kPa 0 5 3 0 bar max 1 0 MPa 10 bar Standard configuration Version D10 equipped with burst membrane in the unit head In explosion hazardous 80 110 kPa locations 0 8 1 1 bar Installation position gt Units without additional shaft bearing in the extension arm Use only with a vertically suspended shaft 5 Exception If the shaft is rigid not flexible and not longer than 200 mm and the bulk material is light weighted an angle of inclination of max 90 is permissible allows side mounting with horizontal shaft gt In case of lateral installation horizonta2. MBA 200 Operating Instructions 8011417 V2 2 MBA Instruments GmbH Germany Bin level Indicator MBA 200 2 1 2 2 2 3 Product description Unit components 1 Unit head contains the motor p drive and electronic components D Three different types available 2 Process connection thread or flange Attached to the outer wall of the bulk materials container Holds the unit head on the outside and the protective tube if provided on the inside Many 3 versions available for individual adaptation to the actual container _ 3 Shaft Connects the paddle to the 4 unit head Various lengths available large sizes divided in two sections and a flexible steel cable as the shaft 4 Paddle Stops the shaft rotation when the bulk material surrounds the paddle Solid flexible foldable versions available with different size or material 5 Protective tube option Covers the shaft inside the container Various lengths available Versions open tube for vertical mounting great lengths delivered in two sections tube for horizontal mounting with additional shaft bearing at the end angled shaft bearing with horizontal tube and a vertical shaft emessa EB Principle of operation The electric motor in the head makes the shaft and the paddle rotate slovviy When the bulk material surrounds the paddle the rotation i
3. lt x x x A lt gt WARNUNG Risk of injury A The distance tube is possibly hot enough to burn skin immediately when being touched gt If the container is hot Protect the distance tube against accidental touching The surface temperature of the distance tube can be significantly higher than the unit head temperature gt Check if the dust explosion limit value can be exceeded when the surface of the distance tube is covered with dust gt If this hazard exists Make sure that the distance tube cannot be contaminated with dust or that the distance tube is periodically cleaned as a preventive measure 4 WARNUNG Explosion hazard by dust contamination 34 Electrical connection 341 Important safety notes Before opening the unit head shut off the mains power supply and all connected signal voltage The electrical circuits inside the unit head are not protected against physical contact WARNUNG High voltage inside the unit head type 230 WARNUNG Free electrical contacts inside the unit head In the type 230 unit head there are always contacts with an output of 230 and 115 V even if the unit is powered with a lower voltage page 9 3 4 6 gt Observe this information when operating the unit with open unit head for service purposes Take care Give a warning to other persons 342 Safe electrical installation gt A MBA 2
4. 10 5 2 Preventive function check 10 5 3 Safety information on opening 10 5 4 Removing the unit head repair note 10 6 Fault indication 11 7 Technical data 11 7 1 Specifications on the nameplate 11 7 2 Electrical data aria lore pa menant 11 7 3 Ambient conditions 11 7 4 Product materials 11 7 5 Dimensions nat Ri Dan at 12 7 6 EC Type Examination Certificate 13 2 MBA 200 Operating Instructions 8011417 V2 2 MBA Instruments GmbH Germany _Bin level Indicator MBA 200 1 Product overview r ATEX 7 I I Zone 2012 Option 80 C i a E pe J i a 3 200 C I Gulfi Ii 80 C
5. 5 Fault indication caused by action monitoring If action monitoring is built in option the following conditions will trigger the fault status indication The shaft does not rotate although the motor is not in the stop position switch S2 Possibly defective switch S2 motor rotation sensor The shaft is rotating although the motor is in the stop position switch S2 Possibly defective switch S2 gt Remedy Check if internal micro switches are blocked gt If this does not help Replace the unit head General causes for fault indication Without the action monitoring option the following conditions will trigger the fault status indication e Power supply has failed e An internal fuse is defective e Action monitoring is activated although it is not built in Remedy Correct the setting of S1 4 gt page 9 3 5 Important specifications on the nameplate example MBA Instruments MBA 210YAA1 I IUV VO AI CA JA OLU A Ta Z20 extern 15 C 60 C Ta Z20 medium 30 C 80 C a Al CE 004 MBA lilstruments D 25451 Quickborn Made in Germany A Nameplate stating the Certificate of Conformity example MBA Instruments MBA 210YAA1N1A00300AX PN 214000 G 123456 Ey sn evi AIDES me elle X T V 08 ATEX 554820 X EC 60 C 230VAC 50 60Hz 10VA Ta Z20 medium 30 C 80 C Sh A CE 0044 MBA Instruments D 25451 Quickborn Made in Germany Namepla
6. in potentially explosive atmospheres given in Annex Il to the Directive The examination and test results are recorded in the confidential report No 08 203 554821 9 Compliance with the Essential Health and Safety Requirements has been assured by compliance with EN 61 241 0 2006 EN 61 241 1 2004 10 If the sign X is placed after the certificate number it indicates that the equipment or protective system is subject to special conditions for safe use specified in the schedule to this certificate 11 This EC type examination certificate relates only to the design examination and tests of the specified equipment in accordance to the Directive 94 9 EC Further requirements of the Directive apply to the manufacturing process and supply of this equipment These are not covered by this certificate 12 The marking of the equipment or protective system must include the following I 1 2 D Ex tD A20 A21 IP65 T100 C resp T200 C resp T350 C T100 C ll 1 DExtD A20 IP65 T100 C resp T200 C resp T350 C T100 C T V NORD CERT GmbH Langemarckstra e 20 45141 Essen accredited by the central office of the countries for safety engineering ZLS Ident Nr 0044 legal successor of the T V NORD CERT GmbH amp Co KG Ident Nr 0032 The head of the certification body Schwedt Hanover office Am T V 1 30519 Hanover Fon 49 0 511 986 1455 Fax 49 0 511 986 1590 This certificate may only be reproduced without any change schedule
7. included Excerpts or changes shall be allowed by the T V NORD CERT GmbH P17 F 011 06 06 page 1 2 MBA 200 Operating Instructions 8011417 V2 2 MBA Instruments GmbH Germany 13 Bin level Indicator MBA 200 EC Type Examination Certificate Page 2 of 2 13 SCHEDULE 14 EC Type Examination Certificate No T V 08 ATEX 554821 X 15 Description of equipment The rotating paddle switch type MBA 2x0 Z and MBA 2x0 Y is used for indication of filling limits in bulk solids TUV NORD Marking 1D 11 1 2 D Ex area for apparatus head Ex area for extension with paddle Technical data Zone 20 Zone 21 Zone 20 Permissible ambient temperature in the area of the head 15 C to 60 C Permissible ambient temperature in the area of the head with internal heating 30 C to 60 C Permissible ambient temperature in the area of the process silo 30 C to 80 C construction for high temperatures see Special conditions for safe use Degree of protection IP IP 65 Supply voltage Type MBA 210 terminals L1 N PE 230 V a c resp 115 V a c Type MBA 220 terminals 24 V 0 V Type MBA 230 terminals 230 115 N PE terminals 42 0 24 V a c d c 230 V a c resp 115 V a c 42 V a c Contact circuits Terminals 1 2 3 and 4 5 6 25
8. 0 V a c 2 A resp 60 Vd c 1A 16 The test documents are listed in the test report No 08 203 554821 17 Special conditions for safe use 1 At process temperatures gt 80 C max 200 C resp max 350 C only the high temperature constructions of the rotating paddle switch are permissible Then the max process temperature regarding the explosion hazardous dust air mixture has to be assessed by the user The temperature of the distance tube can exceed the max surface temperature of the apparatus head 100 C then this temperature has to be assessed by the user regarding the explosion hazardous dust air mixture The hints in the manual of the user have to be observed 2 Atrisks by pendulum swinging or vibration of the extender sufficient measures have to be taken by the user against strokes towards the silo wall di The connection cables have to be installed fixed 18 Essential Health and Safety Requirements no additional ones page 2 2 14 MBA 200 Operating Instructions 8011417 V2 2 MBA Instruments GmbH Germany _Bin level Indicator MBA 200 Notes MBA 200 Operating Instructions 8011417 V2 2 MBA Instruments GmbH Germany 15 MBA 200 8011417 2009 05 V2 2 MBA Instruments GmbH Friedrich List Str 5 25451 Quickborn Germany www mba instruments de A Phone 49 0 41 06 123 888 0 Fax 49 0 41 06 123 888 9 info mba instruments de
9. 00 should be installed and set up by skilled persons who can assess the tasks given and consider the dangers involved The MBA 200 is not equipped with a power switch or fuse gt Install an external power switch which can switch on and off the mains power supply to the MBA 200 gt Provide an external mains fuse for the MBA 200 power consumption page 11 7 2 gt Use power cable with following conductor cross sections Massive wire max 2 5 mm Stranded wire max 1 5 mm gt Use cables which are specified for an ambient temperature of at least 60 C 140 F gt Protect all cables against heat Avoid contact with hot surfaces for example the container wall Consider thermal radiation and heat accumulation 343 Protection against explosion WARNUNG Explosion hazard If the unit is used in an explosion hazardous location the following criteria must be observed gt Certification Check if the individual unit is applicable to the use in the actual explosion hazardous location see nameplate and delivered documents Observe the special conditions which are specified in certification documents gt Equipotential connection In addition to the protective earth connection PE install an equipotential bonding using the terminal on the outside of the unit head gt Cables Use only cables which fit to the cable glands For standard product versions the outer diameter of th
10. 32 11332 DN 100 PN 16 220 180 18 20 I 1E 1E DN 125 PN 6 240 200 18 18 N ifs ul DN 125 PN 16 250 210 18 22 e o l 4 ANSI Class 150 228 6 190 5 19 Se i 5 ANSI Class 150 254 5 2159 22 2 mm L Eintauchtiefe 2 EE Sl ez em PL L 220 gt lt gt MBA 200 Operating Instructions 8011417 V2 2 MBA Instruments GmbH Germany _Bin level Indicator MBA 200 76 EC Type Examination Certificate Page 1 of 2 Translation 1 EC Type Examination Certificate TUV NORD 2 Equipment and protective systems intended for use in potentially explosive atmospheres Directive 94 9 EC 3 Certificate Number T V 08 ATEX 554821 X 4 forthe equipment Rotating paddle switch type MBA 2x0 Z and MBA 2x0 Y 5 ofthe manufacturer MBA Instruments GmbH 6 Address Friedrich List Stra e 5 25451 Quickborn Germany Order number 8000554821 Date of issue 2008 10 08 7 This equipment or protective system and any acceptable variation thereto are specified in the schedule to this certificate and the documents therein referred to 8 The T V NORD CERT GmbH notified body No 0044 in accordance with Article 9 of the Council Directive of the EC of March 23 1994 94 9 EC certifies that this equipment or protective system has been found to comply with the Essential Health and Safety Requirements relating to the design and construction of equipment and protective systems intended for use
11. F with heating 45 60 C 49 140 F 30 60 C 22 140 F Allowable temperature inside the container standard versions 30 80 C 22 176 F special versions Max surface temperature of the MBA unit see nameplate 7 1 see nameplate gt 7 1 Product materials Product materials in contact with bulk material Enclosure protective tube steel painted steel stainless steel aluminium Sealing Viton or PTFE or graphite Materials of the unit head Enclosure body Enclosure cover Enclosure sealing Cable glands aluminium painted aluminium silicone VMQ PA sealing NBR option nickel plated brass sealing NBR FPM PA PVDF Sealing plug PA Balancing membrane polyester ePTFE sealing silicone 1 in explosion hazardous locations gt page 13 8 7 6 2 depending on product version 3 standard unit head only 4 350 C 660 F version MBA 200 Operating Instructions 8011417 V2 2 MBA Instruments GmbH Germany 11 Bin level Indicator MBA 200 Dimensions ee i A u 14 Te T tt a a fi A B C D H DN 100 PN 6 210 170 18 16 ll 11
12. OPERATING INSTRUCTIONS MBA 200 Rotating Bin Level Indicator Installation Operation Maintenance Bin level Indicator MBA 200 Document information Document ID Title Operating Instructions MBA 200 Order No 8011417 Version 2 2 Stand 2009 05 Subject Product name MBA 200 Hardware all versions Manufacturer MBA Instruments GmbH Friedrich List Str 5 25451 Quickborn Germany MBA Instruments GmbH Germany All rights reserved Explanation of warning symbols Hazard general Hazard by voltage Hazard in explosion hazardous locations Hazard by high temperature or hot surface Pbb gt Warning levels CAUTION Hazard or unsafe practice which could result in personal injury or property damage WARNING Risk or hazardous situation which could result in severe personal injury or death Explanation of information symbols Technical risk for this device or its function general Technical risk for this device by voltage or other electrical hazards Supplementary information NE wu Nice to know vy ATAN Contents 1 Product overview 3 2 Product description 4 2 1 Unit components 4 2 2 Principle of operation 4 2 3 Optional equipment 4 2 4 Appropriate use 4 2 5 Responsibili
13. c options only for type 220 and 230 e Action monitoring A Hall sensor in the unit head monitors the shaft rotation The error status is indicated by means of a relay contact e Indicating LED light Indicates the current status 24 Appropriate use Range of application MBA bin level indicators are rugged electromechanical sensors designed to detect the presence of bulk material at the place of installation and thus to control the filling of bulk material containers Possible applications depend on the configuration of the individual unit Bin level indicators of the MBA 200 series can be used with industrial bulk materials from organic and mineral substances MBA units may not be affected by chemical aggressive gases or fluids _ WARNUNG Explosion hazard A MBA 200 bin level indicator may only be used in explosion hazardous locations if the individual specifications of the unit complies with this use gt Check nameplate and accompanying papers gt Check whether the specifications of the EC Type Examination Certificate must be complied with page 13 7 6 wl gt If there is any doubt whether the unit may be used for the desired application or not Ask the manufacturer wy IN Design options Variable design features are for example e Paddle design size and material e Shaft design and material e Sealing of shaft against enclosure The corresponding properties for the unit can expand or re
14. cation for use in explosion hazardous locations if provided is no longer valid 31 Protective roof deflector gt If at all possible place the MaihakMBA unit in a position where falling bulk material will not directly strike onto the shaft or the paddle AD J oQ Z For heavy bulk materials that could damage the shaft or the paddle gt If required install a stable deflector or protective roof in the container which protects the shaft and the paddle against direct impact of falling bulk material If the bulk material is heavy or can form large clumps gt Install a stable protective roof within the container to shield the shaft and the extension arm from the weight of the bulk material gt Provide sufficient space between protective roof and paddle to make sure that the bulk material can reach the paddle Assembly if required If shaft paddle and protective tube if provided were shipped dismantled for safe and easy transport gt Install the shaft Guide the top end of the shaft into the shaft sleeve of the unit head Use a split pin to connect both parts push it through and spread it out With two part shafts Join both parts of the shaft in the same way gt Assembli
15. e cables must be 6 12 mm gt Cable glands The built in cable glands may only be replaced by components which are certified for the use in the actual explosion hazardous location ATEX certified Fixed installation Fix all connected cables in place over their entire length gt Sparks Prevent generation of sparks inside the container Sparks can be generated when the shaft or the paddle collides with metal parts If the MaihakMBA is equipped with a flexible shaft sparks could be produced when the shaft cable swings and the paddle collides with the container wall gt Installation standard Make the installation in accordance to the European standard EN 61241 14 MBA 200 Operating Instructions 8011417 V2 2 MBA Instruments GmbH Germany 7 Bin level Indicator MBA 200 3 4 4 Type 210 115 or 230 VAC N oO 98 C QO olle oe si I PELL N 123 4 5 DO 4 4 ia Heel 115 VAC i il Stop mech Hi 230 VAC Signal i Rotat Status Signal contact gt Use the potential free make amp break relay contact K1 for the level indication Depending on setting of S1 relay K1 is activated either when the paddle is rotating or when the paddle is stopped gt Select which setting provides a fail safe operation in your system Position H Position L S1 Fail safe FULL level Fail safe EMPTY level i
16. ered This test should be made several times gt If the MBA unit does not correctly indicate the level status Check the options for mechanical adaptation see below and carry them out if necessary If the type of bulk material has been changed gt Do this test adaptation again Possible ways of adapting the unit e Spring tension see figure More sensitive setting less tension for light bulk material Bring the spring to closer position Less sensitive setting more tension for heavy bulk material Bring the spring to a more distant position e Paddle size To make it more sensitive for lighter bulk material Install a bigger paddle To make it less sensitive Install a smaller paddle e Spring type If required install a stronger or weaker spring 3 different types available 5 1 5 2 Maintenance Recommended maintenance work gt Clean the moving external parts Clean off deposits and dirt on paddle and shaft using a soft scraper and or a brush Do not use force Caution Do not damage the shaft sealing Do not allow bristles to get between the shaft and the shaft sealing D Inspect the parts subject to wear highly recommended in case of abrasive bulk material Make a visual inspection of the parts which protrude into the container shaft paddle etc Pay special attention to the connecting parts split pins etc Replace dama
17. former gt Observe this information when operating the unit with open unit head for service purposes Take care Give a warning to other persons Permissible power voltage tolerance 15 10 Internal fuses Type 220 is equipped with three internal fuses e Power overload fuse see type 220 e Overheat fuse see type 220 e Overheat fuse in the power transformer cuts off the transformer circuit at 98 C 208 F 3 5 3 6 DIP switch settings for type 220 230 S1 ON OFF 7 Fail safe FULL indication K1 is activated when the paddle is rotating During power failure the full status is indicated like paddle is stopped Fail safe EMPTY indication K1 is activated when the paddle is stopped During power failure the empty status is indicated like paddle is rotating switches off with a delay of 2 Switch on delay K1 No electronic switch on switches on with a delay of delay 4s 3 Switch off delay K1 No electronic switch off delay 4s 4 The action monitoring option is built in consequences gt page 11 Fault indication The action monitoring option is not built in Closing the housing Closing the cable glands gt Lay the connected cables internally in such a way that they do not interfere with the mechanism gt After the cables have been installed the cable glands must be closed off to be dust tight and
18. ged or dubious parts gt Clean the protective tube only if the unit is equipped with an open protective tube Clean the inside of the protective tube to make sure that the shaft can always freely rotate gt Clean the distance tube if existing if required for explosion protection gt page 7 3 3 4 Remove dust contamination from the distance tube Preventive function check If the indicating function is seldom triggered during operation e g if the level indicator is used as a safety switch 1 Inform the connected stations that a test will be carried out 2 Stop the paddle by hand allow the paddle to rotate freely and check the correct status indication Safety information on opening WARNUNG Health risk Explosion hazard Before opening the unit head switch off the power supply and any connected signal voltage at an external point Note the level indication is thereby disabled gt Only open the housing when you are absolutely sure that there is no possible danger WARNUNG High voltage inside the unit head type 230 In the type 230 unit head there are always contacts with an output of 230 and 115 V even if the unit is powered with a lower voltage page 9 3 4 6 gt Observe this information when operating the unit with open unit head for service purposes Take care Give a warning to other persons Severe dirtiness inside the unit head can affect the proper functioning of
19. he height adjustment device can also be used to keep the unit head away from high container temperatures e Important This feature applies only to units equipped with DTR type bearings Mounting instructions gt Adjust the height to a level where the distance between unit head and container is at least 200 mm 7 9 gt If the container is equipped with a thermal insulation Remove the thermal insulation around the protective tube instructions page 7 3 3 4 When these conditions are kept the unit can be used with container temperatures up to 200 C 392 F MBA 200 Operating Instructions 8011417 V2 2 MBA Instruments GmbH Germany _Bin level Indicator MBA 200 334 Temperatures of the distance tube Unit versions for high container temperatures above 80 C are equipped with a distance tube between unit head and connection thread flange The purpose of the distance tube is to keep high temperatures away from the unit head max 60 C gt If the container is equipped with a thermal insulation Keep the distance tube free of thermal insulation in order to allow cooling by the ambient air Do not cover the distance tube with the insulation of the container Otherwise distance tube will not provide the required cooling effect Overheat can cause malfunctions and damage the unit head a Z SO x RER gt Vv lt lt
20. l HUE o o oloo ole o olo oo lee Ha 1 2 3 4 5 6 24 0 Ba trot nv t AA D S PE Signal Status SL Signal contact Use make amp break relay contact K1 for the level indication paddle rotating stopped Depending on setting of S1 1 relay K1 is activated either when the paddle is rotating or when the paddle is stopped gt Select which setting provides a fail safe operation in your system gt 3 5 Status contact Relay contact K2 is used to indicate a fault condition Full information gt page 11 6 Permissible contact load Direct current Alternating current 60 VDC 1 A DC 1 250 VAC 2 A AC 15 Power supply Permissible power supply voltage Direct current 24 VDC 10 30 Alternating current 24 VAC 15 10 gt Provide an external power fuse gt Connect the power supply to terminals 24 V and 0 Ve gt Connect the protective earth PE conductor to the terminal in the unit head Power overload fuse The power overload fuse cuts off the internal power supply in case of high current gt When overload fuse has been released Switch off the power supply externally and wait for approximately one minute for the fuse to cool down then switch on the power supply again gt If the overload fuse is released again Search for the trouble or replace the electronics board if required Overheat fuse The overheat fuse cuts off the power s
21. l shaft Install the unit in such a way that the cable glands are on the underside of the housing The unit head can be turned 2 after the clamping screw 1 on the underside has been released The clamping screw must be fixed to achieve operational condition Attachment Standard versions gt Attach the MBA process connection to the container dimensions page 12 7 5 gt If protection class IP 65 is required European standard EN 60529 Provide a suitable water dust sealing between device and container gt Ifthe paddle does not go through the container opening Detach the paddle before mounting and re install after mounting Height adjustment option The height adjustment device is a clamp ring fitting which allows to fix the protective tube at variable insertion depth 1 Install the threaded base part of the fitting in the container wall 2 Put the clamping nut and the clamping ring over the protective tube 3 Guide the protective tube through the base part of the fitting caution do not damage the sealing rings inside the fitting and bring it into the desired position 4 Guide the clamping ring into the fitting Screw up and tighten the clamping nut 5 Install the paddle a ul D Temperature protection by height adjustment T
22. ndication indication K1 is activated when the paddle is rotating During power failure the full status is indicated like paddle is stopped K1 is activated when the paddle is stopped During power failure the empty status is indicated like paddle is rotating Status output S3 switches the power voltage L1 between terminal 4 and 5 directly actuated by the motor mechanism Permissible contact load Direct current Alternating current 60 VDC 1A DC 1 250 VAC 2 A AC 15 Power supply Mains supply voltage 115 VAC or 230 VAC see nameplate 15 10 gt Connect the power supply to terminals L1 and N gt Connect the protective earth PE conductor to the terminal in the unit head Overvoltage can immediately destroy internal electronic components gt Observe the mains voltage specification on the nameplate page 11 7 1 Overheat fuse Type 210 is equipped with an overheat fuse which cuts off the power supply when the internal temperature exceeds 98 C 208 F When the fuse is blown the electronics board needs to be replaced for repair Wiring example as FULL level indicator N fill control 3 4 5 Type 220 24 VAC DC M AC DC N Ad s2 stab ov ie PTC 98 C Ad K1 K2 MBA E
23. ng the protective tube for divided protective tubes Take the locking screws out of the connecting coupling sleeve Screw one of the protective tube parts into the coupling sleeve up to about the middle of the coupling sleeve Then screw in the other part from the other side and firmly attach both parts of the protective tube Recommendation Now make two small countersunk holes in the coupling sleeve which will fix the position of the locking screws use a max 3 2 mm diameter drill guided through the screw holes of the coupling sleeve Put in the locking screws and tighten gt Install the protective tube for units with a protective tube Apply a threadlocking adhesive such as Loctite to the thread of the protective tube and screw the protective tube into the threaded sleeve as far as it goes gt Shortening the flexible cable shaft if required Remove the tensioning weight from the end of the cable undo the locking screw and pull out the cable At the place where the cable must be cut wrap some adhesive tape firmly around the cable to protect against wire particles shooting from the cable Wear protective goggles glasses Then cut the cable with a suitable wire cutter or a cutting disk Remove the adhesive tape and attach the tensioning weight again gt Install the paddle Guide the flat end of the paddle into the slot of the shaft and attach it with the split pin provided push it through and spread it out
24. s blocked The counter torque is used to turn the motor mechanism against a switch which then turns the motor off The switch has a second contact potential free which is used for the status indication As soon as the bulk material releases the paddle again a spring pulls the motor mechanism back into the working position Thus the switch is released and the paddle starts rotating again The motor mechanism requires approximately 3 seconds to indicate stopping or restarting of the paddle switching delay due to the mechanical sequence Additional indication delay can be effected by e the characteristics of the bulk material torsion effects e g cable shaft rubber paddle e electronic switching delay page 9 3 5 Optional equipment General options e Special seal DTR Protection against gases vapours and abrasive bulk materials e Compensating membrane Membrane which allows diffusion of water vapour and thus can balance out the humidity inside the unit head Moreover the membrane will burst if the pressure inside the unit head increases strongly due to operational trouble which allows the use on containers with an internal pressure up to 1 MPa option 10 bar e Heating in the unit head Allows use at low ambient temperatures e Height adjustment A clamping sleeve which guides the protective tube of the extension arm and allows fixating the extension arm at variable insertion depth Electroni
25. spray water resistant gt Unused cable glands must either be blocked off with stoppers or replaced with closing caps If used in explosion hazardous locations these parts must be applicable to explosion hazardous locations ATEX certified Closing the cover gt Before closing cover of the unit head check whether there are any foreign bodies inside the unit head such as rests of cable Remove them gt Visually check the sealing of the cover Clean or replace if necessary gt Put the cover in place and screw it up tight MBA 200 Operating Instructions 8011417 V2 2 MBA Instruments GmbH Germany 9 Bin level Indicator MBA 200 4 First Start up 41 Switching on WARNUNG Health risk Explosion hazard During operation the unit head and the cable gland s must be correctly closed and sealed Otherwise the specified type of protection and the specified explosion protection option is not guaranteed 42 Function test at first start up 421 Check the operative function After the first start up check the indicating function 1 Allow the paddle to rotate freely check the empty indication 2 Stop the paddle by hand check the full indication 422 Check for triggering by the bulk material Procedure gt While visually watching the bulk material level fill and empty the bulk materials container up to the MBA unit and check that the indicating function is correctly trigg
26. strict the range of possible applications e g suitability for a particular type of bulk material Please note carefully the specifications for your particular unit 25 Responsibility of the user gt Use the device only as described in these Operating Instructions The manufacturer bears no responsibility for any other use gt In addition to these Operating Instructions follow all local laws technical rules and company internal operating directives applicable at the respective installation site of the equipment gt No components may be removed from added to or changed on the device unless this is described and specified in the official manufacturer information D In explosion hazardous locations Prior to installation and operation observe the European standard EN 61241 14 EN 61241 14 Electrical apparatus for use in the presence of combustible dust selection and installation s Product versions which are certified for use in explosion hazardous locations have been tested and certified according to EN 61241 0 and EN 61241 1 MBA 200 Operating Instructions 8011417 V2 2 MBA Instruments GmbH Germany _Bin level Indicator MBA 200 3 Installation 1 gt Do not remove add or change any of the components in the instrument unless these changes are described and specified in a manufacturers official information Otherwise the manufacturer s guarantee becomes invalid and the certifi
27. te stating the EC type Examination Certificate example MBA Instruments MBA 210YAA1N1A00300AX PN 214000 123456 ELA Ex 10 4201285 TNQ CIT100 C T V 08 ATEX 554821 X 3 SN 654321 05 03 SAR 60 C 230VAC 50 60Hz 10VA Ta Z20 medium 30 C 80 C A C 0044 MBA Instruments D 25451 Quickborn Made in Germany 7 1 7 2 7 3 7 4 Technical data Specifications on the nameplate e Unit type for example 210 and version code e Required mains power supply for example 230VAC 50 60 Hz e Explosion protection class for example ll 1D including the enclosure protection class for example IP 65 and maximum surface temperatures The first temperature value applies to the components protruding into the container The second temperature value applies to the unit head e Allowable ambient temperature T and Ex zone for example Z20 extern for the unit head medium for components protruding into the container Specifications on the nameplate apply with higher priority Electrical data Mains voltage see nameplate Tolerance see text in this manual AC mains frequency 50 60 Hz Power consumption without heating 3 VA with heating 10 VA Response time 3s quick rotating version 0 6 s Ambient conditions Ambient temperature outside the container without heating 15 60 C 5 140
28. the unit gt Protect the inside of the unit head from getting dirty Removing the unit head repair note The unit head can easily be separated from the process connection without opening the process connection 1 If the unit head is to be removed completely disconnect the electric cables first 2 Loosen the fixing screw on the underside of the unit head for approximately 3 mm 3 4 turns 3 Carefully pull the unit head from the process connection along the direction of the shaft This requires some strength due to adhesion and friction of the sealing use skilful power but no brutal force protect yourself against tumbling and falling in the case that the unit head goes suddenly free Re assembly is made in reverse order 10 MBA 200 Operating Instructions 8011417 V2 2 MBA Instruments GmbH Germany _Bin level Indicator MBA 200 6 Fault indication Operation principle of the fault status indication MaihakMBA type 220 and 230 are equipped with the Status switch contact for fault indication which is driven by relay K2 During normal operation K2 is activated in case of an internal fault K2 is deactivated This also happens during power supply failure Please note In fault condition also relay K1 which drives the Signal contact is deactivated in order to provide a fail safe operation however this is only achieved if the K1 function mode is properly selected gt page 9 3
29. ty of the user 4 3 Installation pira 5 3 1 Protective roof deflector 5 3 2 Assembly if required 5 3 3 Installation 2 4 gai 2e un dans ae ent 6 3 3 1 Operational conditions 6 3 3 2 Installation position 6 3 3 3 Attachment sc i e El te R 6 3 3 4 Temperatures of the distance tube 7 3 4 Electrical connection 7 3 4 1 Important safety notes 7 3 4 2 Safe electrical installation 7 3 4 3 Protection against explosion 7 3 4 4 Type 210 115 or 230 VAC 8 345 Type 220 24 VAC DC 8 3 4 6 Type 230 42 115 230 VAC 9 3 5 DIP switch settings for type 220 230 9 3 6 Closing the housing 9 3 6 1 Closing the cable glands 9 3 6 2 Closing the cover 9 4 First Start up 10 4 1 Switching n iaia rie ea ia NS 10 4 2 Function test at first start up 10 4 2 1 Check the operative function 10 4 2 2 Check for triggering by the bulk material 10 5 Maintenance 10 5 1 Recommended maintenance work
30. upply when the internal temperature exceeds 98 C 208 F When this fuse is blown the electronics board needs to be replaced for repair MBA 200 Operating Instructions 8011417 V2 2 MBA Instruments GmbH Germany _Bin level Indicator MBA 200 3 4 6 Type 230 42 115 230 VAC AC DC N 2 we stab Ov PTC 98 C M IB Ki K2 MBA i 230 pi AA fe EU CEE CA EX olg o o meets 230 115 N 1 2 3 4 5 6 42 0 my ca oh El Es EES D S PE Su le Signal Status ni Signal contact gt See type 220 Status contact gt See type 220 Permissible contact load gt See type 220 Power supply gt Provide an external power fuse For 115 or 230 V power voltage Connect L1 conductor to terminal 115 or 230 respectively Connect N conductor to terminal N gt For 42V power voltage Connect L1 conductor to terminal 42 Connect N conductor to terminal 0 gt Connect the protective earth PE conductor to the terminal in the unit head WARNUNG Internally generated power voltage The power terminals 230 and 115 will have a voltage output of 230 115 V even if the unit is used with a lower power voltage due to power feedback through internal trans
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