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& co kg praezisionsmesstechnik gmbh & co kg All rights reserved Talstr. 1 - 5 Talstr. 1 - 5 76593 Gernsbach 76593 Gernsbach Germany Germany Valid from 09.02.2023 Tel.: +49-7224-645-0 Fax.: +49-7224-645-88 Email: info@burster.com www.burster.com 4357-BA8656EN-5699-021525...
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Furthermore, burster assumes no liability for direct, indirect or incidental damages as well as consequential or other damages arising from the provision and use of the present documentation..
Contents For your safety ........................6 1.1. Symbols used in this manual ................... 6 1.1.1. Signal words ......................6 1.1.2. Pictograms ......................6 1.2. General safety instructions ....................7 Introduction ..........................8 2.1. Intended use ........................8 2.2. Customer service ......................8 2.2.1.
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USB version of the torque sensor model 8656 ..............24 Options ............................ 24 7.1. Angle / speed measurement .................... 24 7.1.1. General information ....................24 7.1.2. Details ........................24 Calibration and adjustment ....................25 8.1. Factory calibration ......................25 8.2. Calibration certificate with accreditation symbol .............. 25 8.3.
For your safety The following symbols on the torque sensor model 8656 and in this operation manual warn of hazards. 1.1. Symbols used in this manual 1.1.1. Signal words The following signal words are used in the operation manual according to the specified hazard classification.
1.2. General safety instructions The torque sensor model 8656 uses state-of-the-art engineering and is safe to operate. However, if thetorque sensor model 8656 is not used or operated as intended, it may present a hazard. DANGER Danger of electric shock! The following instructions must be followed to prevent electric shock and injuries: •...
8656. 2.2.2. Contact person If you have any questions relating to the torque sensor model 8656, please contact your representative or go directly to burster präzisionsmesstechnik gmbh & co. kg. Headquarters burster präzisionsmesstechnik gmbh & co kg Talstraße 1 - 5...
2.3. Environmental conditions • Avoid radiant heat or cooling from one side. • Protect the torque sensor model 8656 from moisture. • The torque sensor model 8656 is not resistant to the effects of chemicals. Do not use the torque sensor model 8656 in a corrosive environment. •...
(immovable) in its packaging. 2.7. Warranty burster praezisionsmesstechnik gmbh & co kg provides a manufacturer's warranty for a period of 24 months after delivery. Any repairs required during this time will be made without charge. This does not include damage arising from improper use.
2.8. Conversions and modifications Note: f you open or dismantle the torque sensor model 8656 during the warranty period, this will void the warranty immediately. The torque sensor model 8656 does not contain any parts that are intended to be serviced by the user. Only the manufacturer's own qualified personnel are permitted to open the torque sensor model 8656.
2.9. Definitions Test side The test side is that end of the shaft at which you apply the torque being measured to the torque sensor model 8656. This side normally has the smallest moment of inertia. You will see these markings on the measurement end of the torque sensor model 8656: Diagram 1 Test side torque sensor model 8656 Drive side...
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You can use the torque sensor model 8656 to measure both clockwise and counterclockwise torques. If the torque is exerted in an anticlockwise direction (looking at the measurement end), you will get a negative signal at the output. Sign convention for measuring angular displacement If the sensor shaft rotates clockwise (looking at the drive end), channel A leads channel B by 90°.
Device design and general information Specifications as full dimensions, mass and power depend on the version of the torque sensor model 8656. Please refer to the data sheet for specifications. 3.1. Mechanical design Diagram 4 Design principle torque sensor 8656 The torque sensor model 8656 essentially consists of three elements: •...
3.2. Principle of operation Torque deforms the torsion shaft and, as it does so, also elastically and reversibly elongates the strain gauges mounted on the shaft. The electrical resistance of these strain gauges changes proportionally to their elongation. The torque sensor model 8656 has a total of four strain gauges. These are arranged as a Wheatstone bridge circuit and are supplied with a DC voltage by the electronics.
3.4.1. Determination of the resonant frequency The resonant frequency of the entire test setup is related to the sensor’s spring constant “c” and to the two moments of inertia “J1” and “J2”, each with the connected molding body. Resonant frequency in Hz Moment of inertia 1 in kg Moment of inertia 2 in kg Spring constant in Nm / rad...
Installation 4.1. Preparing for installation Shafts We recommend an H7/j6 shaft fit to ensure correct assembly and good torque transfer. Mounting surfaces The mounting surfaces for the torque sensor model 8656 or for the optional mounting block must be free of lubricants, particles or burrs.
4.2. Mechanical installation 4.2.1. Installation using mounting block NOTICE Avoid excessive torques, bending moments or axial forces! Excessive torques, bending moments or axial forces may damage the torque sensor model 8656. Connect the electrical cable to the torque sensor model 8656 during fitting and monitor the measurement signal.
a. Start on the side that is easier to turn. Usually this will be the measurement side. b. Do not exceed the permitted torques. Use a torque wrench. c. Hold screws from the other end when tightening. d. Be aware of the maximum forces that you apply. The resultant torques must lie below the rated torque of the torque sensor model 8656.
5.1.3. The connections in detail Voltage output for torque This consists of an operational amplifier with a downstream low pass filter. Diagram 9: Voltage output for torque The connected evaluation circuit should be high impedance (> 10 MΩ). The reference is the potential separated torque output ground.
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TTL output on 3.3 V or other logic The diagram shows adaptation for 3.3 V logic. For other logic levels, appropriate Zener diodes need to be used. Diagram 11: Resistance 10 kΩ, Zener diode 3.3 V Longer transmission paths up to approx. 10 m CAUTION Danger of excessive heating! When connected to a voltage source, the torque sensor model 8656 overheats.
If you use extension cables it is not necessary to recalibrate the torque sensor model 8656. However, you will need to adjust the entire measuring chain. IMPORTANT: f a burster cable of type 99540-000F-05200XX is ordered with the sensor, a ceramic capacitor is supplied with the cable. This ceramic capacitor is needed only with torque sensors that include the angle/speed measurement option.
5.2. Measurement 5.2.1. Switching on 1. Apply the operating voltage to the torque sensor model 8656. 2. The torque sensor model 8656 goes through a self-test mode lasting 4 seconds after power-up. After the self-test has been completed, the sensor is ready for operation. 5.2.2.
USB version of the torque sensor model 8656 For the USB version and DigiVision operation, see the DigiVision Torque Sensors Instruction Manual. Options 7.1. Angle / speed measurement 7.1.1. General information The torque sensor model 8656 can be equipped with integral angle/speed measurement. Chapter 7.1.2 „Details“...
8.1. Factory calibration As part of the traceable burster factory calibration, the torque sensor model 8656 is checked for calibratability, and is then calibrated and provided with a calibration label and a calibration certificate. The burster factory calibration certificate includes the following information as a minimum: •...
Taking out of use • • Remove the torque sensor model 8656 correctly. • Protect the torque sensor model 8656 from knocks. • Protect the torque sensor model 8656 against bending moments. • Support the torque sensor model 8656. • Do not drop the torque sensor model 8656 under any circumstances. von 28...
Technical data The data sheet for the torque sensor model 8656 contains the detailed technical specification. You can obtain the latest data sheet and additional information on the torque sensor model 8656 from https://bit.ly/3xrLdSz or simply use the QR code below: Diagram 16 QR code fort he torque sensor model 8656 product page 10.1.
Disposal Battery disposal As an end user, you are required by law (battery ordinance) to return all used batteries and rechargeable batteries; the disposal through household waste is prohibited. By buying the herein described device you are concerned by this law. Please dispose of your batteries and rechargeable batteries correctly.
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