LORENZ MESSTECHNIK GmbH
Contents
1. of the nominal torque 6 4 2 Natural Resonances Estimate of the mechanical natural frequencies fo Natural Frequency in Hz J4 Ja Moment of Inertia in kg m C Torsional Rigidity in Nm rad J4 ds Further methods for the calculation of natural resonances are corresponding purchasable programs or books e g Holzer Procedure Dubbel Taschenbuch f r den Maschinenbau Springer Verlag LE Operation of the device in natural resonance can lead to permanent damages E Mail info lorenz sensors com Technical changes reserved 090266 Internet www lorenz sensors com Page 11 of 15 D LORENZ MESSTECHNIK GmbH 92g S tie3s 181 07172 957300 6 5 Calibration Control Option By a control resistance a signal is generated in the sensor which corresponds to the nominal value of the sensor Advantage Re Calibrations are reduced Before each measurement the zero point and the nominal value can be checked I Signal Or signa Function By applying positive SG supply the measuring bridge is Slipring Supply electrically detuned so that at the output a measuring Sensor External signal of 100 of the nominal value is available Optionally 50 80 possible Use calibration control at unloaded torque sensor only 6 6 Speed Limits The maximum speed indicated in the data sheet may not be exceeded in any operating state 6 7 Disturbance Variables By disturbances measured value falsifications2. D LORENZ MESSTECHNIK GmbH 92g S2tie3st 131 07172937300 Operation Manual for Torque Sensors with Slip Ring Transmission For below and similar Types DR 12 DR 20 DR 2291 DR 2335 E Mail info lorenz sensors com Technical changes reserved 090266 Internet www lorenz sensors com Page 1 of 15 D LORENZ MESSTECHNIK GmbH xxu Fex07172 18373022 Imprint Manufacturer Place Lorenz Messtechnik GmbH D 73553 Alfdorf Valid for Torque Sensors with Slip Ring Transmission Copyright 2006 Lorenz Messtechnik GmbH Alfdorf Reprint Interdiction Reprint even in extracts only with written authorization Modification Technical changes reserved References in this Text 1 6 Warning Notes Page 5 Attention must be paid to the accident prevention regulations of the trade associations Coverings and casings are necessary before operating the sensor This is also valid for commissioning maintenance and trouble shooting Duties of the coverings and casings are Protection from detaching parts Protection from contusion and shear Prevention from reaching rotating parts Prevention from being tangled up and or getting caught by parts Coverings may Not grind Notrotate Coverings are also necessary outside of operating and motion travel areas of persons These demands can be modified if other sufficient safety devices are available During operation the safety precautions must be operative By vibrations damages can o
3. construction of the plant must be suitable for the avoidance of dangers A danger analysis for the plant must be carried out 1 4 Reconstructions and Modifications Each modification of the sensors without our written approval excludes liability on our part 1 5 Personnel The installation assembly commissioning operation and the disassembly must be carried out by qualified personnel only The personnel must have the knowledge and make use of the legal regulations and safety instructions E Mail info lorenz sensors com Technical changes reserved 090266 Internet www lorenz sensors com Page 4 of 15 D LORENZ MESSTECHNIK GmbH 3555 sion favorire 1937902 1 6 Warning Notes Attention must be paid to the accident prevention regulations of the trade associations Coverings and casings are necessary before operating the sensor This is also valid for commissioning maintenance and trouble shooting Duties of the coverings and casings are Protection from detaching parts Protection from contusion and shear Prevention from reaching rotating parts Prevention from being tangled up and or getting caught by parts Coverings may gt Not grind Notrotate Coverings are also necessary outside of operating and motion travel areas of persons These demands can be modified if other sufficient safety devices are available During operation the safety precautions must be operative By vibrations damages can occur at hand guided device
4. film epoxy crisps paper shavings The sensor should be tidily packed into film so that no packing material can reach into the sensor ball bearings Larger sensors should be packed in cases E Mail info lorenz sensors com Technical changes reserved 090266 Internet www lorenz sensors com Page 14 of 15 D LORENZ MESSTECHNIK GmbH 3555 sion favorire 1937902 9 1 Transportation Only release well packed sensors for transportation The sensor should not be able to move back and forth in the packing The sensors must be protected from moisture Only use suitable means of transportation 9 2 Storage The storage of the sensors must occur in dry dust free rooms only Slightly lubricate shafts and flanges with oil before storing rust 10 Disposal The torque sensors must be disposed according to the valid provisions of law For this see our General Terms and Conditions www lorenz sensors com 11 Calibration At the time of delivery torque sensors have been adjusted and tested with traceable calibrated measuring equipment at factory side Optionally a calibration of the sensors can be carried out 11 1 Proprietary Calibration Acquisition of measurement points and issuing of a calibration protocol Traceable calibrated measuring equipment is being used for the calibration The sensor data are being checked during this calibration 11 2 DKD Calibration The calibration of the sensor is carried out according to t
5. react to torque Shaft not clamped e Clamp correctly No power supply e Outside of permissible range e Connect supply e Cable defect e No mains supply Cable defect e Repair cable Connector connected wrong e Connect correctly Signal has dropouts Axial position rotor to stator e Align rotor outside of tolerance Cable defect e Repair cable Zero point outside of tolerance Cable defect e Repair cable Shaft mounted distorted e Mount correctly Distorted shaft string e Release from distortion Strong lateral forces e Reduce lateral forces Distorted flanges e Check evenness of flange surfaces Shaft overloaded e Send to manufacturer Wrong torque indication Calibration not correct e Re calibrate Sensor defect e Repair by manufacturer Torque shunt e Eliminate shunt Shaft drags Shaft drags in the rotor e Align shaft e Concentricity of the parts is not ensured Lateral forces too large e Decrease lateral forces Oscillations Alignment of shaft not correct e Align correctly Unbalance e Balance the corresponding parts 8 Decommission All sensors must be dismantled professionally Do not strike sensor housings with tools Do not apply bending moments on the sensor e g through levers The torque sensor must be supported to avoid falling down during the dismantling 9 Transportation and Storage The transportation of the sensors must occur in suitable packing For smaller sensors stable cartons which are well padded are sufficient e g air cushion
6. 5 13 BC e E N A E A TA AE E E A T 15 E Mail info lorenz sensors com Technical changes reserved 090266 Internet www lorenz sensors com Page 3 of 15 D LORENZ MESSTECHNIK GmbH 3555 igor E7172 93022 1 Read First 1 1 Safety and Caution Symbols Caution Injury Risk for Persons Damage of the Device is possible ts Note Important points to be considered 1 2 Intended Use Torque sensors are intended for the measurement of torques This measurand is further suitable for control tasks The valid safety regulations should be absolutely respected The torque sensors are not safety components in the sense of the intended use The sensors need to be transported and stored appropriately The assembly commissioning and disassembling must take place professionally 1 3 Dangers The torque sensor is fail safe and corresponds to the state of technology 1 3 1 Neglecting of Safety Notes At inappropriate use remaining dangers can emerge e g by untrained personnel The operation manual must be read and understood by each person entrusted with the assembly maintenance repair operation and disassembly of the torque sensor 1 3 2 Remaining Dangers The plant designer the supplier as well as the operator must plan realize and take responsibility for safety related interests for the sensor Remaining dangers must be minimized Remaining dangers of the torque measurement technique must be pointed out Human mistakes must be considered The
7. 66 Internet www lorenz sensors com Page 2 of 15 D LORENZ MESSTECHNIK GmbH 925 S tie3st 181 07172 957300 Contents 1 JRO lce cL M ctees 4 1 1 Safety and Caution Symbols ssssssssssssesseeseneenee nennen nennen nnne nnne nnne nnne 4 1 2 Intended SG ce ee edes bed beni Seeded a itasse eter eate sues et Ee Ead 4 T3 P IDCM P 4 1 3 1 Neglecting of Safety Notes sssssssssssssssssseseeeseeeeen enne nnne nennen ennt r nnne nnns 4 1 3 2 REMAINING Dangers p 4 1 4 X Reconstructions and Modifications sessessseeeeeneneeneenn nennen nennen nennen 4 LS d copie ande 4 1o Warming Notes MEO 5 2 Term DETON ite nee reine a rale itt brc eret iaces 5 ONE ILICE 5 2 2 Definition of the Pictograms on the Torque Sensor sssssssssseseeeeeeene 5 3 Product Description eere eR Pr tierra oa Eres nd iore edited ri oa rna nce 6 3 1 Torque Sensor with Slip Ring Torque Sensor with Rotating Shaft 6 3 1 1 Mechanical SetUp pee Sareea 6 3 L2 BIS CtriCal Set p cierre passed ene Pes Peri see ERE Pee Pix mua Ya Feed ip 6 4 Mechanical Asseribly eei teer EE eee ree eek peel ebat dere ea Pee te Dee Est ebur eee rebas 7 4 1 Assem
8. LF T used for the rotational direction detection See corresponding data sheet for the output levels 2 Supply for angle sensor Stabilized supply voltage 5 V 25 mV p 32 shifted Current consumption max 20 mA 090266 Page 10 of 15 E Mail info lorenz sensors com Internet www lorenz sensors com Technical changes reserved D LORENZ MESSTECHNIK GmbH usus Fax ort 72 8373022 6 Measuring 6 1 Engaging The warming up period of the torque sensor is approx 5 min Afterwards the measurement can be started cS The warming up period of the torque sensor is approx 5 min 6 2 Direction of Torque Torque means clockwise or clockwise torque if the torque acts clockwise when facing the shaft end In this case a positive electrical signal is obtained at the output Torque sensors by Lorenz Messtechnik GmbH can measure both clockwise and counter clockwise direction 6 3 Static Quasi Static Torques Static and or quasi static torque is a slowly changing torque The calibration of the sensors occurs statically on a calibration device The applied torque may accept any value up to the nominal torque 6 4 Dynamic Torques 6 4 1 General The static calibration procedure of torque sensors is also valid for dynamic applications Note The frequency of torques must be smaller than the natural frequency of the mechanical measurement setup The band width of alternating torque must be limited to 70
9. bly of Slip Ring Torque Sensors ssssssssssssssseseseeeeneenenee nennen tenere enne 7 4 1 1 Shaft Shaft Freefloating Assembly ssssssssssssseseseeeeeeeneeen nennen nnne nnne 7 4 1 2 Inside and Outside Hexagon Square cceecceeeeeeeeneeeeeeeeeeeeeceaeeeseaeeseaeeeeeeeseaeeeseneesseeeas 8 42 COUpIINGS oer e decer ann ce a ede np lain a Ee el deese eh deb eb dt rte a ancien 8 4 2 1 Single Jointed Couplings esssssssssssesseseseeesee ener nennen nnne enn sterne nnns en ren nnn 8 4 2 2 Misalignment Possibilities of Single Jointed Couplings eeeseeeeeees 8 4 2 3 Alignment of the Measurement Arrangement sesesssseseeeeeeene eene 9 5 Electrical Connection ie pateris craic nee Dee e v ba pelis da Des de d dee te nh a eade ree Deoa e ded oes 9 5 1 Pin Cotinectioft s iiec edet endet de deed a Ede UR ce ee aba rune cet Le ve ide ee nh na eade ru me De BR Edo ded 9 5 2 Cable cites uere ied perdet dnd diee de Edd DE GE Pe tu aida dut ss ve Lue use e ne enced ed dor EE 9 5 3 Shielding Connection esssssssssssssssessssseeeeee nennen ener entes enter nennen en rns estt senes enne an 9 54 Extension Gables reete dera eL eur ede oes e Ur ve Ld aD Deae ve ae aac e Dvd dace 10 5 5 Running of Measuring Cables en rese nnns eterne nnne nnns 10 5 6 Angle Option 2 2 2 2 e ocean tton dedi peter te Re Sea laneo abe EP da
10. can occur by e Vibrations Temperature gradients Temperature changes Arising disturbance variables during operation e g imbalance Electrical disturbances Magnetic disturbances e EMC electromagnetic disturbances Therefore avoid these disturbance variables by decoupling of vibrations covers etc E Mail info lorenz sensors com Technical changes reserved 090266 Internet www lorenz sensors com Page 12 of 15 D LORENZ MESSTECHNIK GmbH 3555 soot S E0172 0373022 7 Maintenance 7 1 Maintenance Schedule Action Frequency Date Date Date Control of cables and connectors 1x p a Calibration lt 26 months Control of fixation flanges shafts 1x p a The durability of the brushes is limited it is depending on speed number of revolutions and construction size We recommend to renew the brushes at Lorenz Messtechnik GmbH according below schedule During this procedure the slip rings will be tested and the sensor will be re calibrated In order to avoid measuring signal fluctuations the carbon dust should be removed from the sensor housing depending on speed We recommend to clean the sensor as described below five times during the durability of the brushes Testing of the slip rings at Lorenz Messtechnik GmbH Small Size Medium Size Large Size X Large Size Speed lt 35 mm width lt 45 mm width lt 60 mm width lt 120 mm width 1 min Revolutions Revoluti
11. ccur at hand guided devices which can lead to injuries 4 Mechanical Assembly Page 7 Caution During the assembly inadmissibly large forces may not act on the sensor or the couplings At small torques 20 N m connect the sensor electrically during the assembly and observe the signal the measurement signal may not exceed the limit values During the assembly the sensor must be supported to protect it from falling down 4 1 Assembly of Slip Ring Torque Sensors Page 7 Caution at Permutation of Drive Side and Measuring Side e Friction of the slip rings will influence the measuring signal e At dynamic measurements a restricted measurement accuracy has to be expected by the higher inert mass and the damping effect of the slip rings Therefore always consider Drive Side and Measuring Side 4 4 1 Shaft Shaft Freefloating Assembly Page 7 Before the assembly shafts and hubs must be cleaned with dissolver e g acetone no foreign particles may adhere to them The hub must fit corresponding to the connection 4 1 2 Inside and Outside Hexagon Square Page 8 Caution Do not use pulse or impact wrenches 6 1 Engaging Page 11 Warming up period of the torque sensor is approx 5 min 6 4 2 Natural Resonances Page 11 An operation of the device in natural resonance can lead to permanent damages 7 1 Maintenance Schedule Page 13 Caution Do not bend brushes while cleaning E Mail info lorenz sensors com Technical changes reserved 0902
12. duoc Dae eve de pneu e ge Den 10 SEMBLE E 11 6 1 ENG AGUNG em 11 6 2 Directi n of TOrque lieet tetro A E tos suo eer S 11 6 3 Static Quasi Stalic Torques iet eet pec nete tat te elle ca edu taaa 11 6 4 Dynamic TOIques eite cei te Errata ce e rece nee ace eve cod lube Du enu s nd 11 6 4 1 e cm 11 6 4 2 Natural ROSOMANGCES Em 11 6 5 Calibration Gontrol Option utei tette ardere Led tenere baee cet eel cod ets 12 6 6 OE EJ 12 6 7 Disturbance VariableS8 centre cte uie ere BRA EANA bar cc un uu b eed 12 Maitilenaree u ertet eere ee rene ore dec pe xe rope been Dre aue bx t cer E ree cue redi 13 7 4 Maintenance Schedule rrt tend eec epe ta rd nea aut ero kcu eed 13 2 VWOUDISs SOONG EP 14 MM E Toleti 14 9 Transportation and Storage eset deae iato ee ne dte re nU gena paar bu Rud ette beu eataa 14 Fansponaligi seses a n eA EAN AE EANES RAEE EEE E EEE ENE ERE KAREAR 15 D2 E o 1e TRIER 15 10 DISPOS E A E AE A A E E T 15 11 GallDratiOri aoc disce ota die ema e t Yi ee pua oe ER Lea EE AEN Zoe ea LE ATAA nd 15 1 1 Proprietary Calibration sessssssesesesesseseeenee nennen nnne nnnm nnn tenen nnne nnns entres rers enne 15 11 2 DKD Calibration uiae di cce iet det td ee tetra Poe icu gea npa opera Ree eee 15 11 3 Re Calibrati N RC 15 12 B IC ESI ERE E A AEAEE EEE 1
13. e sensor or the couplings At small torques lt 20 N m connect the sensor electrically during the assembly and observe the signal the measurement signal may not exceed the limit values During the assembly the sensor must be supported to protect it from falling down 4 1 Assembly of Slip Ring Torque Sensors At these sensors it must be differentiated between measuring side and drive side At the drive side the slip ring rotating transformer is located and its inevitable friction at permuted installation position measuring side permuted with drive side influences the measurement For the position of the measuring side see data sheet of the sensor www lorenz sensors com In order to avoid abrasive dust from reaching into the brush connections it is recommended to adjust the cable connection upwards ts gt Caution at Permutation of Drive Side and Measuring Side e Friction of the slip rings will influence the measuring signal e At dynamic measurements a restricted measurement accuracy has to be expected by the higher inert mass and the damping effect of the slip rings Therefore always consider Drive Side and Measuring Side 4 1 1 Shaft Shaft Freefloating Assembly The sensor is installed between two single jointed couplings and contributes to the balance of an inevitable axis offset between the two mechanical connections If not using couplings very large lateral forces can affect the sensor In addition large forces occur on bear
14. he guidelines of the DKD The surveillance of the calibrating laboratory takes place by the DKD At this calibration the uncertainty of measurement of the torque measuring instrument is determined Further information can be obtained from Lorenz Messtechnik GmbH 11 3 Re Calibration The recalibration of the torque sensor should be carried out after 26 months at the latest Shorter intervals are appropriate e Overload of the sensor After repair After inappropriate handling Demand of high quality standards Special traceability requirements 12 Data Sheet See www lorenz sensors com 13 Literature Dubbel Taschenbuch f r den Maschinenbau Springer Verlag E Mail info lorenz sensors com Technical changes reserved 090266 Internet www lorenz sensors com Page 15 of 15
15. he transmission of the supply voltage and the measuring signal Torsional Shaft SG Brushes Meas Side O l OO Drive Side Slip Rings Sectional view through the torque sensor Slip ring sensors depending on design consist of a torsional shaft with different connection possibilities shafts square hexagonal etc The torque shaft applied with strain gauges is placed in a housing with ball bearings For the signal transmission or for the supply of the SG full bridge a slip ring rotating transformer is arranged in the sensor It consists of four slip rings on the shaft and fastened brushes at the stator A connector or a cable connection is fixed at the housing 3 1 2 Electrical Setup The strain gauge full bridge is directly connected at the plug or at the cable Supply external Switch Control Signal Signal Slipring Supply Sensor i External Principle sketch for slip ring sensors with strain gauge full bridge and option calibration control E Mail info lorenz sensors com Technical changes reserved 090266 Internet www lorenz sensors com Page 6 of 15 LORENZ MESSTECHNIK GmbH s 7 Ficarrasorence_ 4 Mechanical Assembly Ce Caution During the assembly inadmissibly large forces may not act on th
16. ings drive and specimen which limit their life span very strongly Drive Single jointed coupling Single jointed coupling Specimen Flexible connection for housing fixation Torque sensor E Before the assembly shafts and hubs must be cleaned with dissolver e g acetone no foreign particles may adhere to them The hub must fit corresponding to the connection Connections with Clamping Piece The indications of the clamping piece manufacturer must be considered The clamping piece must be able to safely transfer the emerging torques Feather Key Connections The hub must be secured from slipping out e g by safety screw on feather key or axial screw The housing must be protected from twisting e g by a flexible connection The cable connection may not be used for this The cable connection must be placed loosely form of goose neck so that it can follow the light movements of the stator E Mail info lorenz sensors com Technical changes reserved 090266 Internet www lorenz sensors com Page 7 of 15 D LORENZ MESSTECHNIK GmbH 3555 sion favorire 1937902 Thread for the fixation of a flexible rotary protection Example of the fixation of the rotary protection 4 1 2 Inside and Outside Hexagon Square Typical Application rx Hazards by vibrations must be fe J avoided CE Caution Do not use pulse or impact wrenches Slip ring senso
17. ons Revolutions Revolutions 10 5 10 4 10 3 10 1 5 10 100 2 10 9 10 8 10 4 108 500 7 108 5 109 3 109 1 5 10 1000 5 10 3 10 2 10 1500 4 108 2 4 10 2000 3 109 Course of cleaning e Open sensor loosen the 4 screws and carefully lift off the top with brushes e Use fine longhair brush and remove the carbon dust with dry and oil free air from the sensor Afterwards clean the slip rings with a fine cloth or a Q tip slightly moistened with spirit e Carefully clean brush unit with brush as well and if necessary blow off dust e Reassemble sensor and tighten the 4 screws e Test functionality of the sensor after the reassembly E Caution Do not bend brushes while cleaning Loosen 4 screws Open the slip ring sensor Slip rings E Mail info lorenz sensors com Internet www lorenz sensors com View in sensor on slip rings Technical changes reserved Brushes View on carbon brushes Page 13 of 15 LORENZ MESSTECHNIK GmbH S555 Raae J 7 2 Trouble Shooting This chart is used for searching for the most frequent errors and their elimination Problem Possible Cause Trouble Shooting No signal No sensor excitation e Outside of permissible range e Connect excitation e Cable defect e No mains supply Signal output connected wrong e Connect output correctly e Evaluation electronics defect Sensor does not
18. r Clip on tool Fixation p 4 2 Couplings For this see corresponding data sheet 4 2 1 Single Jointed Couplings For this torque sensor we recommend the couplings intended by Lorenz Messtechnik GmbH which must be able to balance an axial radial or angular offset of the shafts and not allow large forces to act on the sensor Couplings with keyways are used 4 2 2 Misalignment Possibilities of Single Jointed Couplings B 8 nn a Angular misalignments Axial misalignments Note Radial misalignments are only possible in the combination of single jointed coupling torque sensor as adapter single jointed coupling Thus with both single jointed couplings the torque sensor forms a double jointed coupling The arrangement can balance radial misalignments as well Radial misalignments E Mail info lorenz sensors com Technical changes reserved 090266 Internet www lorenz sensors com Page 8 of 15 D LORENZ MESSTECHNIK GmbH 3555 sion Fax ort 72 9790 2 4 2 38 Alignment of the Measurement Arrangement Precisely alignment of the couplings reduces the reaction forces and increases the durability of the couplings Disturbance variables are minimized as well Due to the multitude of applications an alignment of the coupling with a straight edge in two levels vertical to each other is sufficient 5 Electrical Connection 5 1 Pin Connection 6 pin Function Schirm shield 3 1 SG excitation SG e
19. s which can lead to injuries 2 Term Definitions 2 1 Terms Measuring Side Mechanical connection of the torque sensor in which the torque to be measured is applied Usually this side has the smallest moment of inertia Drive Side Mechanical connection of the torque sensor on the opposite side of the measuring side usually with the largest moment of inertia At static torque sensors the housing is fastened on this side Low Torque Resistance Side The shaft of the arrangement drive load which can be turned considerably smaller with torque than the nominal torque of the torque sensor M lt lt My 2 2 Definition of the Pictograms on the Torque Sensor The measuring side of the torque sensor is designated as follows Measuring side M of M Ca More information can be found on the data sheet if needed E Mail info lorenz sensors com Technical changes reserved 090266 Internet www lorenz sensors com Page 5 of 15 D LORENZ MESSTECHNIK GmbH 355 sion Fax ort 72 1937902 j 3 Product Description Measurement of following static and dynamic measurement categories e Torque e Speed at sensors with speed measurement e Angle at sensors with angle measurement Caution it must be differentiated between drive side and measuring side see data sheet of the sensor www lorenz sensors com 3 1 Torque Sensor with Slip Ring Torque Sensor with Rotating Shaft 3 1 1 Mechanical Setup The sensor is equipped with slip rings for t
20. the extension cable and the calibration at Lorenz Messtechnik GmbH Dependence of the characteristic value on the cable length Wire cross Cable resistance Deviation per m Deviation per m Deviation per m section per m cable length at cable length at cable length at bridge resistance bridge resistance bridge resistance 350 Q 700 Q 1000 Q 0 14 mm 0 28 Q 0 08 95 0 04 0 028 0 25 mm 0 162 0 046 0 023 0 016 96 0 34 mm 0 122 0 034 0 017 0 012 Cable resistance 2 x resistance of the cable length both feed lines of the sensor The sensors with the ordered cable length are calibrated at Lorenz Messtechnik GmbH Therefore the cable length does not need to be considered in this case 5 5 Running of Measuring Cables Do not run measuring cables together with control or heavy current cables Always assure that a large distance is kept to engines transformers and contactors because their stray fields can lead to interferences of the measuring signals If troubles occur through the measuring cable we recommend to run the cable in a grounded steel conduit 5 6 Angle Option At angle or speed measurement the pulses revolutions Impulse Evaluation with a second are acquired By a second transmitter trace displaced by 90 shifted Impulse Track 90 and flank evaluation the pulses revolutions can be 360 59 0 180 0 180 0 180 quadrupled The trace displaced by 90 can also be HE
21. xcitation Shield SG signal 100 calibration control 2 3 4 SG signal 5 6 12 pin Function gt SG excitation SG excitation SG signal rot red F grau grey SG signal rosa pink Excitation Angle Excitation Angle Angle A TTL Angle B TTL schwarz black Q rot blau rec blue Angle 100 calibration control zir x leiri olnm olol Shield View socket on soldering side See attached test certificate 5 2 Cable Only use a shielded cable with preferably small capacity We recommend measuring cables from our product range They have been tested in combination with our sensors and meet the metrological requirements 5 3 Shielding Connection In combination with the sensor and the external electronics the shield forms a Faraday Cage By this electro magnetic disturbances do not have any influence on the measurement signal At potential difference problems we recommend to ground the sensor E Mail info lorenz sensors com Technical changes reserved 090266 Internet www lorenz sensors com Page 9 of 15 D LORENZ MESSTECHNIK GmbH 3555 sion Fax ort 72 1937902 5 4 Extension Cable Caution depending on bridge resistance and wire cross section the measuring cable length enters into the characteristic value of the sensor Therefore order the sensor together with
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