Safety instructions Use in accordance with the regulations The T12 digital torque transducer is used exclusively for torque, rotational speed, angle of rotation and power measurement tasks and control and adjustment tasks directly connected thereto. Use for any additional purpose shall be deemed to be not in accordance with the regulations.
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Means that important information about the product or its handling is being given. Symbol: Meaning: CE mark The CE mark enables the manufacturer to guarantee that the product com plies with the requirements of the relevant EC directives (the declaration of conformity is available at http://www.hbm.com/HBMdoc). A1979-7.1 en...
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Prevention of accidents According to the prevailing accident prevention regulations, once the T12 digital torque transducer has been mounted, a cover or cladding has to be fitted as follows: •...
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CAUTION The protection against contact option, to prevent accidental contact, must not be used as protection against bursting parts. The only permitted exceptions to the above requirements are if the various parts and assemblies of the machine are already fully protected by the design of the machine or by existing safety precautions.
• protect your settings or load the factory settings • display and evaluate the measured values Notes on installing the T12 Assistant on your PC can be found in the "T12 Assistant Control Software" Quick Start Guide. (pdf file on T12 system CD and part of the “Setup Toolkit for T12"...
Application The T12 digital torque transducer records static and dynamic torque at stationary or rotating shafts measures rotational speed or angle of rotation, including indication of the direction of rotation, and computes the power. It is designed for: • highly dynamic torque measurements when testing the performance and functionality of engines and compound sets •...
Signal flow Low pass LP1: 0.05 Hz ... 4000 Hz Low pass LP2: 0.05 Hz ... 100 Hz Low pass LP: 0.1 Hz ... 80 Hz Fig. 4.1: Signal flow diagram The torque and the temperature signal are already digitized in the rotor and transmission is therefore noise‐free.
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For settings over 100 Hz (torque low‐pass filter 1 only), phase delay compensation is run for the angle of rotation signal. This ensures that torque and angle of rotation values that are measured simultaneously are also output simultaneously. For rotational speed and angle of rotation, two pulse series with a shift of 90° are available as RS‐422 compatible signals.
Structure and mode of operation The torque transducer comprises two separate parts: the rotor and the stator. Strain gages (SGs) for torque measurement have been installed on the rotor. Carrier frequency technology (19.2 kHz carrier frequency) is used for analyzing the SG and temperature signal. The rotor temperature is measured at two measuring points and averaged.
(medium strength) to exclude prestressing loss due to screw slackening. The T12 torque transducer can be mounted directly with a relevant shaft flange. It is also possible to directly mount a joint shaft or relevant compensat...
The transducer can be mounted in any position. With clockwise torque, the output frequency is 10...15 kHz (Option 4, Code DF1/DU2: 60 kHz ... 90 kHz). In conjunction with HBM amplifiers or when using the voltage output, a positive output signal (0 V to +10 V) is present.
You can then refer to them whenever there is anything you wish to know, such as the shunt signal. Data can also be accessed through T12 Assistent. To explicitly assign the data, the identification number and the measuring range are specified on the rotor where they can be seen from outside.
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Fig. 6.2: Screw connections, flange B 1. Prior to installation, clean the plane surfaces of the transducer flange and the counter flange. For safe torque transfer, the surfaces must be clean and free from grease. Use a piece of cloth or paper soaked in solvent. When cleaning, make sure that you do not damage the transmitter coils.
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4. There are relevant tapped holes on flange A for continuing the shaft run mounting. Again use screws of property class 10.9 (measuring range of 3 kN@m ... 10 kN@m: 12.9) and tighten them with the prescribed torque, as specified in Table 6.1. Flange A Fastening screw Z Fastening screw Z...
Measuring range Fastening screws Fastening screws Prescribed Property class tightening torque (NVm) (NVm) 100 / 200 10.9 12.9 10 k Table 6.1: Fastening screws DIN EN ISO 4762; black/oiled/ = 0.125 6.5 Fitting the protection against contact (option) The protection against contact comprises two side parts and four covers. It is screwed onto the stator housing.
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Cover plate Cover plate Fig. 6.4: Cover plates on the stator housing 2. For 500 N@m - 3 kN@m measuring ranges and retrospective protec tion against contact orders only: The tapped holes for the stop screws are partly covered by the attached film. Make a semicircular cutout in the film here, at least 6 mm in radius (e.g.
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3. For 5 kN@m and 10 kN@m measuring ranges only: remove the threaded pins from the tapped holes on both sides of the stator. Screw the spacing bolt into the tapped hole on the side of the speed sensor (see Fig. 6.6). Threaded pin Spacing bolt Fig.
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Side part Cover with holes Cover with cutouts 2 AF Countersink Fig. 6.7: Fit the covers NOTE With the 5 kN@m and 10 kN@m measuring ranges, the cover plates of the speed sensor side are angled at the bottom and must be fitted as shown in Fig.
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Fig. 6.8: Angled cover plates (for 5 kN@m and 10 kN@m measuring ranges) 5. Fasten the preassembled side parts on the stator housing, each with two M6 x 25 hexagon‐socket screws (5 AF). Tighten the screws hand‐tight. 6. Apply some of the screw locking device to the screw threads and screw the side parts together, hand‐tight (2 M6 x 30 hexagon‐socket screws;...
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M6 x 30 M6 x 25 M6 x 25 Fig. 6.9: Fit the halves of the protection against contact 7. Align the protection against contact in such a way that its end face is par allel to the stator housing. Stop screw (on both sides) Parallel surfaces...
8. Now tighten all the screws with a tightening torque M of 14 N@m. 9. Screw in the stop screws of the covers with a tightening torque of 2 N@m. 6.6 Installing the stator On delivery, the stator has already been installed and is ready for operation. There are four tapped holes on the base of the stator housing for mounting the stator.
Section through the countersink in the protection against contact Fig. 6.12: Supporting the stator with an angle bracket (5 kN⋅m and 10 kN⋅m) 6.6.1 Preparing with the mounting kit (included among the items sup plied) The supplied mounting kit contains self‐adhesive spacers, to make it easier for you to align the stator to the rotor.
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Radial alignment with spacers The spacers should preferably be attached to the transmitter head, offset by 90°, as shown in Fig. 6.14. If your stator is equipped with a speed measuring system, you must either shorten the spacers to an appropriate length or bond them on a slightly staggered manner next to the speed measuring system.
Axial alignment with spacers The red line on the spacers is used for axial alignment. Align the spacer in such a way that the outer edge of the transmitter head is in line with the red line (see Fig. 6.15). Outer edge of transmitter head Red line...
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When data are being exchanged via the CAN bus or the PROFIBUS, the LED flashes green. You can also use the T12 Assistant to check for the correct alignment. The LED must stay green in the "Rotor clearance setting mode".
9. Make sure that the air gap between the rotor and stator is free from electrically conductive and other foreign matter. 6.6.3 Stator installation over the protection against contact (option) You can also axially flange the stator over the protection against contact (material: aluminum).
Customer adaptation Measuring range Dimensions in mm 100 N⋅m ... 3 kN⋅m 5 kN⋅m 10 kN⋅m Table 6.2: Mounting hole dimensions Fig. 6.18: Face‐mounting on the engine shielding 6.7 Optical speed/angle of rotation measuring system (option) As the stator with the optical speed sensor only partially encloses the slotted disc, if there is sufficient space available for installation, you can subsequently move the stator tangentially over the ready‐mounted rotor.
Axial alignment There is a mark (orientation line) in the sensor pickup for axial alignment (orientation line). When installed, the slotted disc should be exactly above this orientation line. Divergence of up to "2 mm is permissible in measuring mode (total of static and dynamic shift). Slotted disc Flange B Orientation lines...
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Fig. 6.20: Alignment marks on rotor and stator Connect the power line (connector 1). Switch the LED display mode of the T12 Assistant to "optical speed system" setting mode and turn the rotor. Notice the LED to the right of connector 4;...
The phase relation of the two sensor signals is not optimum, there is a variation of 10° to 30° The phase relation of the two sensor signals is not correct, there is a variation of more than 30° For more information on setting mode, look in the T12 Assistant online Help. A1979-7.1 en...
Electrical connection 8.1 General hints Detailed instructions for connecting the T12 to the CAN bus or the PROFIBUS can be found in the "T12‐CAN bus/PROFIBUS" Internet description (in pdf format) on the T12 system CD. To make the electrical connection between the torque transducer and the measuring amplifier, we recommend using shielded, low‐capacitance...
measurement signal. Signal transmission between transmitter head and rotor is purely digital and special electronic coding methods are used to protect from electromagnetic interference. In the case of interference due to potential differences (compensating currents), supply voltage zero and housing ground must be disconnected on the amplifier and a potential equalization line established between the stator housing and the amplifier housing (copper conductor, 10 mm wire cross...
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Assignment for connector 2: Speed measuring system Connector Assignment Color Sub‐D Binder 423 code connector Speed measurement signal (pulse string, ; 0°) No function Speed measurement signal (pulse string, ; 90°phase shifted) No function TEDS for rotational speed Speed measurement signal (pulse string, ;...
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Assignment for connector 3: Supply voltage and voltage output signal. Connector Assignment Binder 423 Torque speed measurement signal (voltage output; 0 V or speed measurement signal (0V) Supply voltage 0 V; Supply voltage 18 V to 30 V DC Torque speed measurement signal (voltage output; "10 V) or speed measurement signal ("10 V) No function Shunt signal activation 5 V...30 V and TEDS for torque...
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Assignment for connector 4: CAN bus standard; A‐coded, black washer Connector Assignment Color Binder 713 code (M12x1) Shielding No function CAN ground CAN HIGH‐dominant high CAN LOW‐dominant low Shielding connected to enclosure ground Top view Assignment for connector 5: CAN bus, second device connector; A‐coded, black washer Connector Assignment Color...
, additional measures have to be taken for discharging over voltages. 8.4.1 Supply voltage for self‐contained operation The notes in this section relate to the self‐contained operation of the T12 without HBM system solutions. The supply voltage is electrically isolated from signal outputs and shunt signal inputs.
10 % of the nominal (rated) torque, as selected. Activate this function via the T12 Assistant or the shunt signal activation on connector 1 or connector 3 (see chapter 8.3). The shunt signal selected last in the T12 Assistant will then be activated.
= torsional stiffness in N⋅m/rad • The maximum vibration bandwidth is 200 % (measuring ranges 3 kN@m ... 10 kN@m: 160 %) of the typical nominal (rated) torque for the T12 (see the specifications, Page 51). The vibration bandwidth must fall within the load range designated by the upper and lower maximum torques.
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A template is also stored, which provides the conversion factors for the various engineering units. The T12 is a transducer, that is to say, the T12 does not read the TEDS blocks, it only writes them. (We therefore strongly advise against editing the...
The “Value" column of the following table gives example values for a T12/1kN⋅m torque transducer from HBM. Torque For the measured quantity torque, HBM has already described the template “Frequency/Pulse Sensor" and the template “High Voltage Output Sensor". A1979-7.1 en...
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Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec. Calibration Initials HBM or PTB Initials of the calibrator or calib ration laboratory concerned. Calibration Period days Time before recalibration, cal (Days) culated from the date specified under Calibration Date.
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Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec. Calibration Initials HBM or PTB Initials of the calibrator or calib ration laboratory concerned. Calibration Period (Days) days Time before recalibration, cal...
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Speed measuring sytem/Angle of rotation For the measured quantity rotational speed/angle of rotation, HBM has already described the template “Frequency/Pulse Sensor". Template: Frequency/Pulse Sensor Parameter Value Unit Requi Explanation user rights Transducer Electrical Pulse Signal Type Sensor The physical measured quant...
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Template: Frequency/Pulse Sensor Parameter Value Unit Requi Explantion user rights Measurement location ID Identification number for the measuring point.Can be assigned according to the application. Possible values: a number from 0 to 2047. Transducer Electrical Pulse Signal Type Sensor The physical measured quant Minimum Frequency 0,000E+000 degre...
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Template: Frequency/Pulse Sensor Parameter Value Unit Requi Explantion user rights Calibration Initials HBM or PTB Time before recalibration, cal culated from the date specified under Calibration Date. Calibration Period days Time before recalibration, cal (Days) culated from the date specified under Calibration Date.
Maintenance The T12 torque transducer without speed measuring system is mainten ance‐free. 12.1 Cleaning the speed measuring system During operation and depending on the ambient conditions, the slotted disc of the rotor and the associated stator sensor optics can get dirty. This becomes noticeable: •...
Specifications Type Accuracy class 0.03 Torque measuring system N⋅m 100 200 500 Nominal (rated) torque M kN⋅m for reference only kft‐lb 150 375 750 1,500 2,250 3,750 7,500 Nominal (rated) sensitivity (range between torque = zero and M Frequency output 10 kHz/60 kHz 5/30 Voltage output Sensitivity tolerance (deviation of...
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N⋅m 100 200 500 Nominal (rated) torque M kN⋅m for reference only kft‐lb 150 375 750 1,500 2,250 3,750 7,500 Temperature influence per 10 K in the nominal (rated) temp. range on the output signal, related to the actual value of signal span Fieldbusses "0.03 Frequency output...
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Low pass filter LP1, LP2, LP Low‐pass filter frequency output order Nominal Group delay Group delay (rated) (-1 dB) (-3 dB) time time value f 10 kHz"5 kHz 60 kHz"30 kHz (Hz) (Hz) (Hz) (ms) (ms) 4,000 4,000 6,000 0.32 0.25 2,000 2,015...
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N⋅m Nominal (rated) torque kN⋅m for reference only kft‐lb 750 1,500 2,250 3,750 7,500 Speed measuring system/measuring system for angle of rotation Optical, by means of infrared light and metallic slotted disc Num Mechanical increments Positional tolerance of the "0.05 increments "0.05 Tolerance of the slot width...
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N⋅m 100 200 500 Nominal (rated) torque M kN⋅m for reference only kft‐lb 150 375 750 1,500 2,250 3,750 7,500 Rotational speed Fieldbusses Resolution System accuracy (at torsional vibrations of max. 3 % with double speed frequency) Max. speed deviation at nominal (rated) speed (100 Hz‐filter) Voltage output "...
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N⋅m 100 200 500 Nominal (rated) torque M kN⋅m for reference only kft‐lb 150 375 750 1,500 2,250 3,750 7,500 Angle of rotation Accuracy De gree 1 (typ. 0.1) Resolution De gree 0.01 Correction of the phase delay deviation between torque LP1 and angle of rotation for filter frequen...
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Temperature signal rotor N⋅m 100 200 500 Nominal (rated) torque M kN⋅m for reference only kft‐lb 150 375 750 1,500 2,250 3,750 7,500 Accuracy Measurement frequency range 5 (-1 dB) Resolution ° Physical unit Sampling rate Measured values /s Fieldbusses CAN bus Protocol CAN 2.OB, CAL/CANopen compatible...
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General data N⋅m 100 200 500 Nominal (rated) torque M kN⋅m for reference only kft‐lb 150 375 750 1,500 2,250 3,750 7,500 EME (Emission per EN61326-1, table 3) RFI voltage Class A RFI performance Class A RFI field strength Class A Immunity from interference (EN61326‐1, table A.1) Electromagnetic field (AM)
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N⋅m 100 200 Nominal (rated) torque M kN⋅m for reference only kft‐lb 1,500 2,250 3,750 7,500 Load limits Limit torque, (static) " related to M Breaking torque, (static) " related to M > 400 > 320 Axial limit force (static) " Axial limit force (dynamic) amplitude 19.5...
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N⋅m Nominal (rated) torque kN⋅m for reference only kft‐lb 1,500 2,250 3,750 7,500 Mechanical data Torsional stiffness c kN⋅m/ 2,300 2,600 4,600 7,900 Torsion angle at M Degree 0.048 0.043 0.055 0.066 0.049 0.066 0.06 0.07 Axial stiffness c kN/mm 1000 1,600 Radial stiffness c...
Dimensions 14.1 Rotor dimensions (6x605 for 100 NVm ... 200 NVm) ∅d View A =Measuring plane (Center of the installation) ∅d Dimensions without tolerances per DIN ISO 2768‐mK Dimensions in mm Measuring range 100 N⋅m/200 N⋅m 47.15 12.5 500 N⋅m/1 kN⋅m 45.7 2 kN⋅m/3 kN⋅m 47.7...
14.2 Stator dimensions 100 N⋅m ... 200 N⋅m with speed measuring system (in mm) View Z approx. 100 min.43 Reserved additional space for connec Reserved additional space for ted status min. 10 connection cable with male connector Reserved additional space for mounting and dismounting approx.
14.3 Stator dimensions 100 N⋅m ... 200 N⋅m with speed measuring system (in mm) View A Only with speed measu ring and speed measu ring system with refe rence marker. A1979-7.1 en...
14.4 Stator dimensions 100 N⋅m ... 10 kN⋅m with speed measuring system (in mm) View Z min. 43 approx. 100 Reserved additional space for Reserved additional connected status min. 10 space for connection cable with male connector Reserved additional space for moun ting and dismounting approx.
14.5 Stator dimensions 100 NVm ... 200 NVm with protection against contact (in mm) (Protection against contact, complete) (Protection against contact, complete) ∅118 (Protection against contact) (Cover plate) (Protection against contact) 0,55 View without protection against contact (half) Dimensions of opening (only with speed measuring system) Included in standart version! and without opening with standard ver...
14.6 Stator dimensions 100 NVm ... 200 NVm with protection against contact (in mm) View B Connection apertures Z (Protection against contact View without protection against contact Connection aperture with spot face A1979-7.1 en...
14.8 Stator dimensions 2 kN⋅m ... 10 kN⋅m with protection against contact (in mm) Protection against contact, complete ∅d (Cover plate) (Cover plate) ∅d View without protection ∅d against contact (half) ∅d ∅d View A Protection against contact Connection aperture with spot face View without cover plate Measuring range Dimensions in mm...
Additional technical information 15.1 Radial and axial run‐out tolerances Axial run‐out AB Radial run‐out AB Internal centering Hardness 46 ... 54 HRC Quality of the axial and radial run‐out surfaces (A, B and AB) Measuring range (NVm) Axial run-out tolerance (mm) Radial run-out tolerance (mm) 0.01 0.01 0.01...
Delivery status The parameter factory settings of are marked with an asterisk (*). Underlined parameters will not be overwritten by reset to factory settings. SYSTEM General settings Project name My Project Language Deutsch; English Specify passcode (1 – 9999) Passcode activ? Yes*;...
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Calibration period voltage Measuring point number Passcode entry Enter passcode (1 – 9999) PARAMETERIZE TRANSDUCER Torque Measuring point name MyTorqueMeasPnt Measuring point number Unit Nm*; kNm; ozfin; ozfft; lbfin; lbfft Decimal point .; .0; .00; .000*; .0000; .00000 Sign Positive*; Negative Low-pass filter 1 (nominal value) 0.05 Hz;...
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Hysteresis for rotational direction re Enabled*; Disabled version Frequency output Signal Torque low-pass 1* Torque low-pass 2 Mode 10 +/- 5 kHz* 60 +/- 30 kHz* 1st point physical setpoint value 0.000* (depending on nominal (rated) measuring range) 2nd point physical setpoint value 1000.000* (depending on nominal (rated) measuring range) 1st point frequency...
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Select parameter set 1*; 2; 3; 4; Factory default Save to transducer Select parameter set 1; 2; 3; 4 Torque TEDS template HBM Frequency Sensor* High level voltage Output Speed/ Angle output TEDS template HBM Frequency Sensor* HBM pulse Sensor A1979-7.1 en...
No customer‐specific modification Order no.: "0.05 %; With voltage output: Lin. K‐T12 "0.1 %/10 K Only with option 3, Code L; specific Ordering example: ations see Data sheet B1958‐xx en K‐T12 - 5 0 0 Q S F 1 A1979-7.1 en...
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They are not to be understood as express warranty and do not constitute any liability whatsoever. Hottinger Baldwin Messtechnik GmbH Im Tiefen See 45 S 64293 Darmstadt S Germany Tel. +49 6151 803-0 S Fax: +49 6151 803-9100 Email: info@hbm.com www.hbm.com...