Temposonics. Magnetostrictive Linear Position Sensors. MH-Series MH5 Analog Data Sheet

Transcription

1 Temposonics Magnetostrictive Linear Position Sensors MH-Series MH5 Analog Linearity < 0.04 % F.S. Resolution typ. ±0.1 mm Stainless steel housing

2 1. Product description and technology Temposonics sensors can be used in versatile mobile machines without any restriction and replace contact-based linear sensors like potentiometers. Highly dynamic systems are controlled safely by means of Temposonics sensors, thus enhancing the productivity, availability and quality of the working process of the machine. Insensitive to vibration, shocks, dust and weathering influence and electro-magnetic disturbances. Temposonics MH Series sensors are successfully used in front axle and articulated frame steering cylinders, hydraulic jacks and in steering systems for hydraulic units on agricultural and construction machinery. 1 Temposonics Connector system (IP69K) 2 Flange housing 3 Position magnet 4 Pressure pipe Simple Mechanics The extremely robust sensor consists of the following main parts: 1 The innovative connector system which is easy to install in a few seconds, any soldering or crimping needless, dust-and waterproof up to IP69K. 2 The flange housing with built-in electronics and signal converter. 3 The position magnet as only moving part, which 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. converted into an electrical signal. Since the speed of the ultrasonic wave in the waveguide is precisely known, the time required to receive the return signal can be converted into a linear position measurement with both high accuracy and repeatability. Measurement principle 2 Position magnet (Magnetic field) Sensing element (Waveguide) 1 Due to small dimensions MH sensors require only little space Suitable for operating pressures up to 350 bar Unaffected by surrounding media such as ageing or foaming oil Insensitive to shock and vibration Designed for all current supply voltages (12/24 VDC) Temposonics sensors offer used output signals: XX Analog: VDC / ma Measuring technology The absolute, linear position sensors provided by MTS Sensors rely on the company s proprietary Temposonics magnetostrictive technology, which can determine position with a high level of precision and robustness. Each Temposonics position sensor consists of a ferromagnetic waveguide, a position magnet, a strain pulse converter and supporting electronics. The magnet, connected to the object in motion in the application, generates a magnetic field at its location on the waveguide. A short current pulse is applied to the waveguide. This creates a momentary radial magnetic field and torsional strain on the waveguide. The momentary interaction of the magnetic fields releases a torsional strain pulse that propagates the length of the waveguide. When the ultrasonic wave reaches the end of the waveguide it is 3 4 Torsional strain pulse converter Measurement Cycle 1 Current pulse generates magnetic field 2 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 5 I 2 I

3 2. The new Temposonics InterConnection plug MTS presents the new InterConnection plug combined with the reliable connector system M12 The new connection plug is modular configurable and can be combined with all common connector systems in the market. The Temposonics Connector System M12 meets the highest protection requirements important for a harsh environment in mobile hydraulic applications. Protection type IP69K performs water and dust proof. In addition it is even resistive against high pressure water cleaning. The new InterConnection plug invented by MTS Sensors. 1 2 The new InterConnection plug combined with our reliable Temposonics M12 connector system. 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 case of using angled type connectors the connector insert can be rotated inside the flange in 45 steps. 3 4 With a corresponding mating plug the connector system fulfills an IP rating of IP69K. - Absolutely easy and safe installation. - No brazing or crimping of connecting leads is required. I 3 I

4 3. In Cylinder assembly The new MH 5 sensor fits into all enveloped designs for MH series. Mechanical installation The robust Temposonics model 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. Example Sensor installation The method of installation is entirely dependent on the cylinder design. While the most common method of installation is from the rod side of the cylinder, an installation from the head side of the cylinder is also possible. In both installation methods, the hermetic sealing of the cylinder is given by an O-ring with additional back-up ring. Please pay attention: The position magnet shall not touch the pressure pipe. Piston rod drilling: Depth: S + Z + 3 mm Diameter: Pressure Pipe Ø 7 Ø 10 Drilling Ø 10 Ø 13 Do not exceed operating pressure Flange housing with O-ring and back-up ring e.g. retaining with set screw ISO 4026 M5 10 (with flat point!). Fastening torque: 0.44 Nm to 0.50 Nm Note: Ensure threads are free of oil, grease and debris 1 B D d H h Type B - Ø Cylinder D - Ø min. H - Depth d - Ø min. h - Depth MH 52 mm 48H8 screwed 48G7 welded 21.2 mm 32.5 mm 40 mm 15 mm Please pay attention to installation manual! All dimensions in mm I 4 I

5 Installation with axial cable orientation To avoid damage to the connection cables, the bore of the connection space should exceed 18mm in the case of axial orientation; the diameter should be 38 to 40 mm. If necessary, a chamfer of 45 must be added to the Ø 16 mm bore. > 18 Ø Ø 16 Abb. 1: Installation with axial cable orientation Magnet assembly in piston ID d C W M S h V Circlip Spacer (Non-magnetic) Position magnet Spacer (Non-magnetic) magnetic (steel) d Pressure rod Ø 7 Ø 10 Drilling (minimum) Ø 10 Ø 13 ID h (deep) Considered by the cylinder manufacturer Magnet (M) Part no Magnet (M) Part no Magnet (M) Part no OD M Ø 25,4 OD M Ø 32,8 OD M ID M Ø 17,4 Ø 13,5 7,9 ID M Ø 13,5 7,9 Ø 23,8 ID M Ø 13,5 Ø 4.3 mm 7.9 mm Abb. 2: Magnet installation I 5 I

6 Temposonics MH-Series MH5 Analog 4. Dimensions Sensor with InterConnection plug 30 N s F.S. Z MHB0125MD4003A01 Ø Ø48 f7 ( ) d N = Null stroke F.S. = Full stroke Stroke length s mm (Increment: 5 mm) Pressure pipe d 10 mm (pn = 350 bar) / 7 mm (pn = 300 bar) Damping zone Z 45.5 mm InterConnection plug M12 connector M Ø H M12 connector 1 Connector insert M12 Material: polyamide reinforces; O-ring mm NBR 70 Pins: brass with gold plated pins 2 InterConnection plug Material: PPE (glass fiber reinforced plastic) 3 M12 connector flange Material: brass nickel-plated All dimensions in mm I 6 I

7 5. Electrical installation PIN assignment analog 4 pin Pin G H 1 VDC VDC 2 do not connect Signal 3 GND GND 4 Signal do not connect Pin assignment G (1) +12 / 24 VDC (2) not connected (3) GND (OV) (4) Signal: ma, VDC Pin assignment H (1) +12 / 24 VDC (2) Signal: ma, VDC (3) GND (OV) (4) not connected 0 VDC 0 VDC Connecting schematics on vehicle electronics: +12/24 VDC VDC GND Signal cable shield (optional) ECU + BAT GEN M Chassis GND I 7 I

8 6. MH 5 analog: Technical data Input Measured value Stroke length Output Signal characteristic Position mm Analog output restricted by noise or A/D converter of control unit MH Agri (12 VDC) MH (24 VDC) Voltage VDC; VDC VDC; VDC Current ma Resolution Typ. 0.1 mm Null zone 30 mm Damping 45.5 mm Accuracy Linearity 0.04 % (F.S.) Hysteresis ±0.1 mm Internal sample rate 2 ms Setpoint tolerance ±1.0 mm Operating conditions Mounting position Any Operating temperature electronics C Storage temperature C Fluid temperature C Dew point, humidity EN , 90 % rel. humidity, no condensation Pressure Operating pressure ratings Ø 7 mm pressure pipe Ø 10 mm pressure pipe Dynamic pressure (PD)* 300 bar 350 bar Static pressure (PSD)* 400 bar 450 bar Proof pressure (Pro)** 525 bar 625 bar IP rating M12 connector EN60529 (IP69K) plugged Sensor housing EN60529 (IP67) Environmental testing Shock test IEC , 100 g (11 ms) single shock, 50 g (11 ms) at 1000 shocks per axis Vibration test IEC , 15 g (r.m.s.) Ø 7 mm pressure pipe ( Hz) resonance frequencies excluded 20 g (r.m.s.) Ø 10 mm pressure pipe ( Hz) resonance frequencies excluded EMC test ISO Agricultural and forest machines; EN Construction machines Immunity: ISO (200 V/m Antenna) ISO (200 ma BCI) Emissions: CISPR 25 Transiente Impulses: ISO /2 E.S.D.: ISO / TR The sensor meets the requirements of the EU directives and is marked with Materials and dimensions Pressure pipe (Ø 7 mm / Ø 10 mm) Stainless steel (AISI 304L) Housing Stainless steel (AISI 303) Sealing O-ring: mm NBR 80; back-up ring: PTFE Housing lid Compound PBT (glass fiber reinforced plastic); sealing ring: TPU Electrical installation Connector InterConnection plug Supply voltage ripple < 1 % p-p Power drain < 1 W Load current (output VDC) Typ. 0.5 ma Electrical strength 500 VDC (DC GND to chassis GND) Insulation Resistance: R sec MH Agri (12 VDC) MH (24 VDC) Supply voltage 12 VDC (8 16 VDC) 24 VDC (8 32 VDC) Current consumption Typ. < 80 ma Typ. < 40 ma (24 VDC); typ. < 80 ma (12 VDC) Load (output VDC) R L > 10 kω R L > 10 kω Load (output ma) - R L < VDC; R L < VDC Inrush current Max ms Max ms (24 VDC); max ms (12 VDC) Over voltage protection (GND-VDC) Up to +20 VDC Up to +36 VDC Polarity protection (GND-VDC) Up to 20 VDC Up to 36 VDC * According to calculations under use of the fkm guideline ** Maximum 5 minutes testing time for cylinder pressure test Dynamic: < pressure cycles Static: < pressure cycles I 8 I

9 7. Model configurator For the MH 5 sensor two delivery options are available Option 1/2: All parts delivered as single parts M H M D a b c d e f a Sensor model M H Rod with flange Ø 48 mm b Form factor A Stainless steel housing / pressure pipe Ø 7 mm* *MH5 steel housing was replaced with B Stainless steel housing / pressure pipe Ø 10 mm* stainless steel housing (12/2016) C Stainless steel housing / pressure pipe Ø 10 mm D Stainless steel housing / pressure pipe Ø 7 mm c Measuring length (mm) mm (in 5 mm steps) d Condition of delivery D Sensor & InterConnection plug: not connected e Supply voltage 2 12 VDC (MH Agri) 3 24 VDC (MH) f Output MH Agri MH (24 VDC) V VDC VDC V VDC VDC A 0 1 n.a ma Scope of delivery: Position sensor, O-ring, back-up ring Please order InterConnection plug, M12 flange (part no ) and magnets separately! For more accessories see p. 11 InterConnection plug Ordering code a b c a InterConnection plug InterConnection plug b PIN assignment (analog 4 pin) 1 2 H: 1 = VDC 2 = SIG 3 = GND 4 = n.c. 1 4 G: 1 = VDC 2 = n.c. 3 = GND 4 = SIG c Cable length (mm) mm (in 20 mm steps) How to order (example) Parts Ordering codes/part numbers 1. The sensor: MHC-0400M-D400-2-V11 2. InterConnection plug: M12 flange: Magnet: I 9 I

10 Option 2/2: Sensor and InterConnection plug are delivered together (plugged) M H M M a b c d e f a Sensor model M H Rod with flange Ø 48 mm b Form factor A Stainless steel housing / pressure pipe Ø 7 mm* *MH5 steel housing was replaced with B Stainless steel housing / pressure pipe Ø 10 mm* stainless steel housing (12/2016) C Stainless steel housing / pressure pipe Ø 10 mm D Stainless steel housing / pressure pipe Ø 7 mm c Measuring length (mm) mm (in 5 mm steps) d Condition of delivery (connected) InterConnection plug with single wires M G 4 single wires (in 20 mm steps) (pin assignment 1-3-4) M 0 6 G 60 mm min. wire length M 2 8 G 280 mm min. wire length M H 4 single wires (in 20 mm steps) (pin assignment 1-3-2) M 0 6 H 60 mm min. wire length M 2 8 H 280 mm min. wire length e Supply voltage 2 12 VDC (MH Agri) 3 24 VDC (MH) f Output MH Agri MH (24 VDC) V VDC VDC V VDC VDC A 0 1 n.a ma Scope of delivery: Position sensor, O-ring, back-up ring, InterConnection plug Please order M12 flange (part no ) and magnets separately! For more accessories see p. 11 How to order (example) Parts Ordering codes/part no. 1. The sensor & Interconnection plug: MHC-0400M-M06G-2-V11 2. M12 flange: Position magnet: I 10 I

11 Accessories Position magnets (please order separately) Ø 17,4 Ø 25,4 Ø 32.8 Ø 13,5 7,9 Ø 13,5 7,9 Ø 23.8 Ø 13.5 Ø Name OD17.4 Ring magnet OD25.4 Ring magnet OD33 Ring magnet Part no Dimensions OD M 17.4 mm 25.4 mm 32.8 mm ID M 13.5 mm 13.5 mm 13.5 mm Height 7.9 mm 7.9 mm 7.9 mm Characteristics Material PA neobind PA ferrite PA ferrite GF20 Weight ca. 5 g ca. 10 g ca. 14 g Operating temperature C C C Surface pressure* max. 20 N/mm 2 max. 40 N/mm 2 max. 40 N/mm 2 Fastening torque for M4 screws max. 1 Nm *max. mechanical burden, e.g. by circlip, lock washers etc. Testkits M12 Flange Name MH Testkit (Analog) M12 Flange Part no Scope of Delivery MH-Series analog / PWM Tester 12 VDC battery charger with adapter (EU & UK) cable with M12 connector cable with pigtailed wires carrying case CD-ROM with user s guide I 11 I

12 UNITED STATES MTS Systems Corporation Sensors Division GERMANY MTS Sensor Technologie GmbH & Co. KG ITALY Branch Office 3001 Sheldon Drive Cary, N.C Phone: Auf dem Schüffel Lüdenscheid Phone: info.de@mtssensors.com Phone: info.it@mtssensors.com Document Part Number: Revision F (EN) 03/2018 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 2018 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.