Temposonics. Magnetostrictive Linear Position Sensors. MHRM Analog Data Sheet. For embedded or externally threaded installation

Transcription

1 Temposonics ostrictive Linear Position Sensors MHRM Analog For embedded or externally threaded installation Sensor rod with Ø 7 mm or Ø 0 mm Resolution: ±0. mm typ. Compliant with EN 50-3-

2 MEASURING TECHNOLOGY For position measurement, the absolute, linear Temposonics position sensors make use of the properties offered by the specially designed magnetostrictive waveguide. Inside the sensor a torsional strain pulse is induced in the waveguide by momentary interaction of two magnetic fields. The interaction between these two magnetic fields produces a strain pulse, which is detected by the electronics at the head of the sensor. One field is produced by a moving position magnet, which travels along the sensor rod with the waveguide inside. The other field is generated by a current pulse applied to the waveguide. The position of the moving magnet is determined precisely by measuring the time elapsed between the application of the current pulse and the arrival of the strain pulse at the sensor electronics housing. The result is a reliable position measurement with high accuracy and repeatability. PRODUCT DESCRIPTION AND TECHNOLOGY The MHRM sensor extends the rugged design of the Temposonics MH-Series sensors to railway applications. With two mounting styles, the responsive magnetostrictive linear position sensors can be integrated into most installations. The inherent absolute capabilities ensure that the MHRM sensor is always ready. The new MHRM model meets the requirements for shock and vibration according to EN 6373 and IEC and are compliant with EN and EN x (see technical data). 4 Torsional strain pulse converter Measurement Cycle Current pulse generates magnetic field Position magnet (ic field) Interaction with position magnet field generates torsional strain pulse 3 Torsional strain pulse propagates 4 Strain pulse detected by converter 5 Time-of-flight converted into distance Fig. : Time-based magnetostrictive position sensing principle 3 Sensing element (Waveguide) 5 Temposonics Connector system (IP69K) Flange housing 3 Position magnet 4 Pressure pipe Simple mechanics The extremely robust sensor consists of the following main parts: The innovative connector system is easy to install without soldering or crimping. It is dust-and waterproof up to IP69K. The flange housing with built-in electronics and signal converter. 3 The position magnet as only moving part, is assembled into the piston bottom. This permanent magnet travels wear-free and contactless along the pressure pipe and measures the actual position. 4 The pressure pipe placed within the drilled piston rod contains the protected magnetostrictive sensing element. Fig. : In-Cylinder installation

3 THE INTERCONNECTION PLUG MTS Sensors presents the Temposonics InterConnection plug combined with our reliable M connector system. The connection plug is modular, configurable and can be combined with all common connector systems. The M connector meets the highest protection requirements that are important for harsh environments in mobile hydraulic applications. The IP69K protection type means Safe and easy installation No soldering or crimping of connecting leads 3 4. The InterConnection plug invented by MTS Sensors.. The InterConnection plug combined with our reliable M connector system. 3. The connector insert is taken out of the cylinder through a bore hole. The flange can easily be clicked in position from outside. Four standard screws must be tightened to mount the connector system on the cylinder. In the case of using angled type connectors, the connector insert can be rotated inside the flange in 45 steps. 4. With a corresponding mating plug the connector system fulfills an IP rating of IP69K. 3

4 MHRM EMBEDDED TECHNICAL DRAWING Embedded model with Ø 7 mm sensor rod and flat rod end (MHE-7-A- ) Ø 48 8 Sensor electronics housing 4.5 Null zone Dead zone 5 Ø 7 Embedded model with Ø 0 mm sensor rod and flat rod end (MHE--A- ) Ø 48 8 Sensor electronics housing 4.5 Null zone Dead zone 5 Ø 0 Embedded model with Ø 0 mm sensor rod and M6 female thread rod end (MHE--R- ) Ø 48 8 Sensor electronics housing 4.5 Null zone Dead zone 59 Ø 0 M6-6H 6.35 Embedded model with Ø 0 mm sensor rod and M8 male thread rod end (MHE--U- ) Ø 48 8 Sensor electronics housing 4.5 Null zone Dead zone 7 Ø A/F 5 Controlling design dimensions are in millimeters M8 Fig. 3: MHRM embedded models 4

5 MHRM EMBEDDED TECHNICAL DATA Output Signal characteristic Analog output restricted by noise or A/D converter of control unit Voltage VDC; VDC; VDC; VDC; VDC; VDC Current 4 0 ma; 0 4 ma Measured value Position Measurement parameters Resolution ±0. mm typical Linearity mm mm mm ±0. mm ±0.04 % (F.S.) ±0.8 mm Hysteresis ±0. mm Setpoint tolerance ± mm Operating conditions Operating temperature C Storage temperature C Humidity 90 % relative humidity, no condensation Ingress protection M connector IP67 / IP69K (correctly fitted) Ingress protection Sensor housing IP67 Shock test (according to EN 5055) According to EN 6373 Cat (Bogie) and Cat3 (Axle) Vibration test (according to EN 5055) According to IEC Fn Cat3 (Axle) EMC test (according to EN 5055) EN ISO 498 Agricultural and forest machines EN 3309 Construction machines ISO Electromagnetic immunity according to EN Electromagnetic emission according to EN RF immunity 00 V/m per ISO 45-/-4 PCB coating According to EN 5055 Pressure (according to DIN EN ISO 9879)* Ø 7 mm sensor rod Ø 0 mm sensor rod PN (nominal operating) 300 bar 350 bar Pmax (max. overload) 400 bar 450 bar Pstatic (proof pressure) 55 bar 65 bar Design / Material Housing lid Compound PBT (glass fiber reinforced plastic); sealing ring: TPU Sealing O-ring NBR with back-up ring PTFE Sensor electronics housing Stainless steel.4305 (AISI 303) Sensor rod Ø 7 mm Stainless steel.430 (AISI 304) Sensor rod Ø 0 mm Stainless steel.4306 (AISI 304L) mm Mechanical mounting Mounting instruction Please consult the technical drawings Mounting position Any Electrical installation Connector InterConnection plug Operating voltage / 4 VDC (8 3 VDC) 4 VDC supply VDC supply Load (output ma) R L 500 Ω R L 50 Ω Load (output VDC) R L 0 kω R L 0 kω Inrush current 4.5 A / ms.5 A / ms Operating voltage ripple % PP Power drain W Over voltage protection (VDC-GND) Up to +36 VDC Polarity protection (GND-VDC) Up to 36 VDC Insulation resistance R 0 60 sec according to EN 5055 Dielectric strength 708 VDC (DC ground to machine ground) according to EN 5055 */ According to calculations under use of the FKM guideline Cycles Ø 7 mm sensor rod Ø 0 mm sensor rod Dynamic pressure: < 0 6 pressure cycles 300 bar 350 bar Static pressure: < 0 4 pressure cycles 400 bar 450 bar Proof pressure: Maximum 5 minutes testing time for cylinder pressure test 55 bar 65 bar

6 MECHANICAL INSTALLATION MHRM EMBEDDED Installation in a hydraulic cylinder The robust Temposonics MH sensor is designed for direct stroke measurement in hydraulic cylinders. The Temposonics MH sensor can be installed from the head side or the rod side of the cylinder depending on the cylinder design. In both installation methods, the sensor seals the cylinder by using an O-Ring and backup ring which is installed on the sensor housing. Set screw e.g. retaining with set screw ISO 406 M5 0 (with flat point!). Fastening torque: 0.44 Nm to 0.50 Nm Notice: Ensure threads are free of oil, grease and debris M connector Null zone 30 Dead zone Fig. 6: Set screw 5 Set screw Fig. 4: Example of In-Cylinder assembly NOTICE The bore depth in piston: Null zone + + Dead zone + > 3 mm Space requirements B D d H h 5 mm 48H , mm 5 mm > 5 mm B D d H h Fig. 5: Space requirements for cylinder The position magnet shall not touch the pressure pipe. Do not exceed the operating pressure. Note the piston rod drilling: - Ø 7 mm rod: Ø 0 mm - Ø 0 mm rod: Ø 3 mm Controlling design dimensions are in millimeters Please refer to the installation manual for complete installation instructions! 6

7 CONNECTOR WIRING Connector wiring for InterConnection plug with M connector Fig. 7: Connecting wiring 4 3 View on connector Pin Connector wiring for InterConnection plug with cable outlet 3 4 L (Part no ) Q (Part no ) VDC VDC SIG GND SIG 3 VDC GND VDC GND 4 SIG SIG GND Wire L (Part no ) Q (Part no ) VDC VDC SIG GND SIG 3 VDC GND VDC GND 4 SIG SIG GND 7

8 MHRM EMBEDDED ORDER CODE M H 3 a b c d e f g a Sensor model M H E MH Railway Embedded b Sensor rod diameter 7 Ø 7 mm Ø 0 mm c A R U End plug Flat M6 female thread (only for Ø 0 mm sensor rods) M8 male thread (only for Ø 0 mm sensor rods) d X X X X mm (in 5 mm steps) e Operation voltage 3 + / 4 VDC (8 3 VDC) f Output Current A ma A ma Voltage V VDC V VDC V VDC V VDC V VDC V VDC g Connection D InterConnection plug How to order Example Sensor with M connector Parts Order codes / part numbers. Sensor MHE--A V-D. InterConnection plug with M connector M flange Position magnet Example Sensor with cable outlet Parts Order codes / part numbers. Sensor MHE--A V-D. InterConnection plug (shielded cable) Position magnet DELIVERY Sensor, O-ring, back-up ring Accessories have to be ordered separately Manuals, Software & 3D Models available at: 8

9 INTERCONNECTION PLUG WITH M CONNECTOR ORDER CODE a b c a InterConnection plug InterConnection plug with M connector b Pin assignment M connector (Q: -3-4-) 4 M connector (L: -3--4) c Wire length X X X X mm (in 0 mm steps) INTERCONNECTION PLUG WITH CABLE OUTLET ORDER CODE a b a InterConnection plug Shielded cable (Q: -3-4-) Shielded cable (L: -3--4) b Cable length mm mm mm mm mm mm mm mm mm mm mm 9

10 MHRM THREADED TECHNICAL DRAWING Threaded model with Ø 7 mm sensor rod and flat rod end (MHM-7-A- / MHU-7-A- ) 46 8 Sensor electronics housing 36 Null zone Dead zone 5 53 Ø 38 Ø 7 Ø 7 M8.5 ¾"-6 UNF Threaded model with Ø 0 mm sensor rod and flat rod end (MHM--A- / MHU--A- ) 46 8 Sensor electronics housing 36 Null zone Dead zone 5 53 Ø 38 Ø 7 Ø 0 M8.5 ¾"-6 UNF Fig. 8: MHRM threaded with ring magnet, part Controlling design dimensions are in millimeters 0

11 Threaded model with Ø 0 mm sensor rod and M6 female thread rod end (MHM--R- / MHU--R- ) 46 8 Sensor electronics housing 36 Null zone Dead zone Ø 38 Ø 7 Ø 0 M8.5 ¾"-6 UNF M6-6H 6.35 Threaded model with Ø 0 mm sensor rod and M8 male thread rod end (MHM--U- / MHU--U- ) 46 8 Sensor electronics housing 36 Null zone Dead zone 7 53 Ø 38 Ø 7 Ø 0 M8.5 ¾"-6 UNF 4 4 A/F 5 M8 Fig. 9: MHRM threaded with ring magnet, part Controlling design dimensions are in millimeters

12 MHRM THREADED TECHNICAL DATA Output Signal characteristic Analog output restricted by noise or A/D converter of control unit Voltage VDC; VDC; VDC; VDC; VDC; VDC Current 4 0 ma; 0 4 ma Measured value Position Measurement parameters Resolution ±0. mm typical Linearity mm mm mm ±0. mm ±0.04 % (F.S.) ±0.8 mm Hysteresis ±0. mm Setpoint tolerance ± mm Operating conditions Operating temperature C Storage temperature C Humidity 90 % relative humidity, no condensation Ingress protection M connector IP67 / IP69K (correctly fitted) Ingress protection Sensor housing IP69K (with M connection fitted) Shock test (according to EN 5055) According to EN 6373 Cat (Bogie) and Cat3 (Axle) Vibration test (according to EN 5055) According to IEC Fn Cat3 (Axle) EMC test (according to EN 5055) EN ISO 498 Agricultural and forest machines EN 3309 Construction machines ISO Electromagnetic immunity according to EN Electromagnetic emission according to EN RF immunity 00 V/m per ISO 45-/-4 PCB coating According to EN 5055 Pressure (according to DIN EN ISO 9879)* Ø 7 mm sensor rod Ø 0 mm sensor rod PN (nominal operating) 300 bar 350 bar Pmax (max. overload) 400 bar 450 bar Pstatic (proof pressure) 55 bar 65 bar Materials and dimensions Housing lid Stainless steel.4305 (AISI 303) Sealing O-ring NBR Sensor electronics housing Stainless steel.4305 (AISI 303) Sensor rod Ø 7 mm Stainless steel.430 (AISI 304) Sensor rod Ø 0 mm Stainless steel.4306 (AISI 304L) mm Mechanical mounting Mounting instruction Please consult the technical drawings Mounting position Any Electrical installation Connector M male connector (4 pin) Operating voltage / 4 VDC (8 3 VDC) 4 VDC supply VDC supply Load (output ma) R L 500 Ω R L 50 Ω Load (output VDC) R L 0 kω R L 0 kω Inrush current 4.5 A / ms.5 A / ms Operating voltage ripple % PP Power drain W Over voltage protection (VDC-GND) Up to +36 VDC Polarity protection (GND-VDC) Up to 36 VDC Insulation resistance R 0 60 sec according to EN 5055 Dielectric strength 708 VDC (DC ground to machine ground) according to EN 5055 */ According to calculations under use of the FKM guideline Cycles Ø 7 mm sensor rod Ø 0 mm sensor rod Dynamic pressure: < 0 6 pressure cycles 300 bar 350 bar Static pressure: < 0 4 pressure cycles 400 bar 450 bar Proof pressure: Maximum 5 minutes testing time for cylinder pressure test 55 bar 65 bar

13 MECHANICAL INSTALLATION MHRM THREADED Hydraulics sealing For sealing the flange contact surface, a sealing via an O-ring in the undercut is necessary. O-ring size (included with threaded sensors): For threaded flange (¾"-6 UNF): O-ring 6.4. mm (part no ) For threaded flange (M8.5): 5.3. mm (part no ) Required for metric threads: Hole based on ISO 649- Thread (d P) d d 3 d 4 d 5 L L L 3 L 4 Z M L 3 A R0.4 R0.3 R0. 0. A 0. A Z Ød 5 45 ±5 Ra 3. Ra 3. L L A Ød Ød 4 (Gauging) L 4 Ød 3 (Reference) Thread (d P) A Pitch diameter This dimension applies when tap drill cannot pass through entire boss. Fig. : Notice for threaded flange M8.5-6g based on DIN ISO 649- Sealing via O-ring in the flange undercut Fig. 0: Sealing via O-ring in the flange undercut Required for imperial threads: Hole based on ISO 96- Thread D D3 D4 T T T3 T4 r ¾"-6 UNF Note the fastening torque of 50 Nm. The flange contact surface must be seated completely on the cylinder mounting surface. The cylinder manufacturer determines the pressure-resistant gasket (copper gasket, O-ring, etc.). The position magnet should not rub on the sensor rod. The peak pressure should not be exceeded. Protect the sensor rod against wear. r D4 D3 R T T T3 T4 NOTICE The bore depth in piston: Null zone + + Dead zone + > 3 mm Note the piston rod drilling: - Ø 7 mm rod: Ø 0 mm - Ø 0 mm rod: Ø 3 mm Fig. : Notice for imperial flange ¾"-6 UNF based on DIN ISO 96- CONNECTOR WIRING Connector wiring for M connector 4 3 View on connector Pin L Q VDC VDC SIG GND SIG 3 VDC GND VDC GND 4 SIG SIG GND Fig. 3: Connecting wiring Controlling design dimensions are in millimeters Please refer to the installation manual for complete installation instructions! 3

14 MHRM THREADED ORDER CODE M H 3 a b c d e f g a Sensor model M H M MH Railway with threaded flange M8.5 M H U MH Railway with threaded flange ¾"-6 UNF b Sensor rod diameter 7 Ø 7 mm Ø 0 mm c A R U End plug Flat M6 thread female (only for Ø 0 mm sensor rods) M8 thread male (only for Ø 0 mm sensor rods) d X X X X mm (in 5 mm steps) e Operation voltage 3 + / 4 VDC (8 3 VDC) f Output Current A ma A ma Voltage V VDC V VDC V VDC V VDC V VDC V VDC g Pin out for M connector L M connector (L: -3--4) Q M connector (Q: -3-4-) DELIVERY Sensor, O-ring Accessories have to be ordered separately Manuals, Software & 3D Models available at: 4

15 FREQUENTLY ORDERED ACCESSORIES Position magnets Test kit Ø 7.4 Ø 5.4 Ø 3.8 Ø 3.5 Ø 3.5 Ø 3.8 Ø 3.5 Ø 4.3 Ring magnet OD7.4 Part no Ring magnet OD5.4 Part no Ring magnet OD3.8 Part no MH test kit (analog) Part no Material: PA neobind Weight: Ca. 5 g Operating temperature: C Surface pressure : Max. 0 N/mm Material: PA ferrite Weight: Ca. 0 g Operating temperature: C Surface pressure : Max. 40 N/mm Material: PA ferrite GF0 Weight: Ca. 4 g Operating temperature: C Surface pressure : Max. 40 N/mm Fastening torque for M4 screws: Nm Kit includes: VDC battery charger with adapter (EU & UK) Cables with M connector Cable with pigtailed wires Carrying case Please order test kit cables seperatly Test kit cable Banana plugs Banana plugs Banana plugs M M MHRM test cable with M connector banana plugs (pin assignment L) Part no MHRM test cable with M connector banana plugs (pin assignment Q) Part no MHRM test cable with banana plug pig tail Part no see connector wiring on page 7 see connector wiring on page 7 see connector wiring on page 7 NOTICE See page 3 for InterConnection plug order code Controlling design dimensions are in millimeters 5

16 60 80 Temposonics MHRM Analog InterConnection plugs M flange M H , Ø M connector 7 InterConnection plug shielded cable Part no / InterConnection plug M Part no M flange Part no InterConnection plug Material: PPE (glass fiber reinforced plastic) InterConnection plug Material: PPE (glass fiber reinforced plastic) Material flange: Brass nickel-plated Material O-ring: 3.6 NBR70 4 wires 0.50 mm² (AWG0) copper strands according to IEC 608 insulation polyolefin Cable jacket: Black Elastomer compliant with fire performance for rolling stock equipment according to EN Wires 4 0. mm² (AWG4) PE insulation according to ISO 67-C 3 M plug Material: PA reinforced (with O-ring 7.35 mm NBR70) Pins: Brass with gold plating Controlling design dimensions are in millimeters 6

17 CONNECTOR WIRING Connector wiring for test kit cable (pin assignment L) 3 4 Pin Function Wire color Banana plug color VDC BN BN View on connector SIG GND WH 3 VDC GND BU WH Connector wiring for test kit cable (pin assignment Q) 4 SIG BK GN 3 4 View on connector Pin Function Wire color Banana plug color VDC BN BN SIG WH GN 3 VDC GND BU 4 SIG GND BK WH Connector wiring for test kit cable Wire color Function Banana plug color BN VDC BN WH SIG GN YE GN VDC GND SIG GND WH Fig. 4: Connector wiring NOTICE * test cables to be ordered separately 7

18 MECHANICAL INSTALLATION POSITION MAGNET For cylinder installation: Note the piston rod drilling: - Ø 7 mm rod: Ø 0 mm - Ø 0 mm rod: Ø 3 mm The bore depth in piston: Null zone + + Dead zone + > 3 mm installation for In-Cylinder applications 3 4 B A C Circlip Non-magnetic spacer Position magnet Non-magnetic spacer ( 5 mm) Position magnet (Part no.) > 7.4 mm > 5.4 mm > 3.8 mm 8 mm 8 mm 8 mm Rod Ø 7 mm Piston rod drilling Ø 0 mm Rod Ø 0 mm Piston rod drilling Ø 3 mm Fig. 5: Dimensions for magnet mounting 8

19 UNITED STATES MTS Systems Corporation Sensors Division GERMANY MTS Sensor Technologie GmbH & Co. KG ITALY Branch Office 300 Sheldon Drive Cary, N.C. 753 Phone: info.us@mtssensors.com Auf dem Schüffel Lüdenscheid Phone: info.de@mtssensors.com Phone: info.it@mtssensors.com Document Part Number: 5580 Revision C (EN) 03/08 Reg.-No QM08 FRANCE Branch Office Phone: info.fr@mtssensors.com GREAT BRITAIN Branch Office Phone: info.uk@mtssensors.com CHINA Branch Office Phone: info.cn@mtssensors.com JAPAN Branch Office Phone: info.jp@mtssensors.com MTS, Temposonics and Level Plus are registered trademarks of MTS Systems Corporation in the United States; MTS SENSORS and the MTS SENSORS logo are trademarks of MTS Systems Corporation within the United States. These trademarks may be protected in other countries. All other trademarks are the property of their respective owners. Copyright 08 MTS Systems Corporation. No license of any intellectual property rights is granted. MTS reserves the right to change the information within this document, change product designs, or withdraw products from availability for purchase without notice. Typographic and graphics errors or omissions are unintentional and subject to correction. Visit for the latest product information.