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Burster 8630 Operation Manual

Precision torque sensor
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© 2023
burster
präzisionsmesstechnik gmbh & co kg
All rights reserved
Valid from:
June 13, 2023
OPERATION MANUAL
Precision torque sensor
Model 8630
Manufacturer:
burster
präzisionsmesstechnik gmbh & co kg
Talstrasse 1 - 5
76593 Gernsbach
Germany
Tel.: +49 7224 645-0
Fax: +49 7224 645-88
Email: info@burster.de
www.burster.de
4401-BA8630EN-5999-061529
Postfach 1432
76593 Gernsbach
Germany

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Summary of Contents for Burster 8630

  • Page 1 OPERATION MANUAL Precision torque sensor Model 8630 Manufacturer: © 2023 burster burster präzisionsmesstechnik gmbh & co kg präzisionsmesstechnik gmbh & co kg All rights reserved Talstrasse 1 - 5 Postfach 1432 76593 Gernsbach 76593 Gernsbach Germany Germany Valid from: June 13, 2023 Tel.: +49 7224 645-0...
  • Page 2 “product”) are the result of targeted development and meticulous research. From the date of delivery, burster provides a warranty for the proper condition and functioning of these products covering material and production defects for the period specified in the warranty document accompanying the product.
  • Page 3 of 34...

  • Page 4: Table Of Contents

    4.2.3 Pin-out of the USB connector ................25 4.2.4 Power supply for the 8630 torque sensor fitted with USB ........26 4.2.5 Power supply for the 8630 torque sensor with built-in electronics via the circular connector ......................26 4.2.6 Power supply for the 8630 torque sensor without built-in electronics....27 4.2.7 Cable ........................
  • Page 5 4.3 Measurement operation ....................29 4.3.1 Switching on ......................29 4.3.2 The torque direction ....................29 4.3.3 Check function (for 8630 with instrumentation amplifier) ........30 4.3.4 Dual-range sensor ....................30 Calibration and adjustment ....................31 5.1 Factory calibration ......................31 5.2 Calibration certificate with accreditation symbol ..............

  • Page 6: For Your Safety

    Property damage to the equipment or the surroundings will result if the hazard is not avoided. Note: It is important to heed these safety notices in order to ensure you handle the model 8630 torque sensor correctly. IMPORTANT: Follow the information given in the operating manual.

  • Page 7: General Safety Instructions

    General safety instructions The model 8630 torque sensor is state of the art, and is safe to operate. However, if the 8630 torque sensor is not used or operated as intended, it may present a hazard. DANGER Electric shock hazard!

  • Page 8: Introduction

    The respective upper range value is shown on the type plate. Both the low mass of the model 8630 torque sensor and its high torsional rigidity are an advantage when measuring dynamic torques. However, you need to pay attention to the spring constant and the cut-off frequency of the model 8630 torque sensor with such measurements.

  • Page 9: Ambient Conditions

    • Avoid radiant heat or cooling from one side. • Protect the 8630 torque sensor from moisture. • The 8630 torque sensor is not resistant to chemical agents. Do not use the sensor in a corrosive environment. • Keep the bearings and connectors free of dust, dirt and other foreign matter.

  • Page 10: Contents Of Pack

    Only ever use the 8630 torque sensor under the conditions specified in this operation manual. Inspect the model 8630 torque sensor for damage. If you suspect that the unit has been damaged during shipping, notify the delivery company within 72 hours.

  • Page 11: Modifications And Maintenance

    The model 8630 torque sensor 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 model 8630 torque sensor.

  • Page 12: Device Design And General Information

    Please refer to the data sheet for specific figures. Definitions Test side The test side is the mechanical connection of the model 8630 torque sensor in which the torque to be measured is induced. This side normally has the smaller moment of inertia.

  • Page 13: Mechanical Design

    With the built-in amplifier option, the 8630 torque sensor outputs directly a torque-proportional voltage of 0 ... ±10 V. The Micro USB port can be used to configure the 8630 torque sensor. For instance it is possible to set a filter frequency, configure averaging and set a tare function. With the USB option, in addition to the voltage output, the measurement function is available via USB as well.

  • Page 14: 8630 Torque Sensor With Bridge Output

    3.3.1 8630 torque sensor with bridge output The 8630 torque sensor with bridge output has a 7-pin circular connector. This connector is used to supply the sensor with its required rated excitation voltage and to output the measurement signal in mV/V.

  • Page 15: 8630 Torque Sensor With Amplifier

    IMPORTANT: The housing of the 8630 torque sensor must be grounded. Torque sensor model 8630-XXXX-VXX0X0 The Micro USB socket on the 8630-XXXX-VXX0X0 torque sensor is used for configuring the 8630-XXXX- VXX0X0 torque sensor, or specifically its analog output. Disconnect the plug from the circular connector while configuration is in progress to prevent ground loops.

  • Page 16: Static And Quasi-Static Torques

    You can use the DigiVision Light version free of charge and download it via the download area on our website www.burster.dcom. You can find more information about the DigiVision software and its use in the accompanying operation manual (https://bit.ly/3Ls86wO).

  • Page 17: Dynamic Torques

    Estimating the mechanical resonant frequency As a first approximation, the resonant frequency of the entire test setup depends on the spring constant “c” of the model 8630 torque sensor and the moment of inertia “J” of the attached components. Resonant frequency in Hz...

  • Page 18: Troubleshooting Table

    Shaft under tension when fitted Fit correctly Tension on shaft Release tension Zero point out of tolerance Strong off-axis loads Reduce off-axis loads Return the 8630 torque sensor Shaft overloaded to the manufacturer Calibration not correct Recalibrate Return to manufacturer for Torque reading incorrect...

  • Page 19: Installation

    Make sure you fit the 8630 torque sensor the correct way round. The housing is fitted to the drive side of the sensor. The side of the 8630 torque sensor to be used for measurement is labeled “TEST SIDE”:...

  • Page 20: Preparing For Alignment And Fitting

    Use only the appropriate burster accessories such as flange adapter or bracket to ensure correct installation of the 8630 torque sensor. Note: Fit the 8630 torque sensor loosely at first before alignment. Do not tighten the screws on adapters at this stage. Note: Make sure the whole assembly is exactly in line when aligning the 8630 torque sensor and/or the shafts.

  • Page 21: Installation Options

    Blind threaded holes and locating-pin holes – underside On its end face on the drive side, the 8630 torque sensor has six blind threaded holes for fixing the sensor to its surrounding application. Tighten the screws in a diagonal pattern to the specified tightening torque.
  • Page 22 Always tighten the fixing screws in a star pattern. If the 8630 torque sensor is supplied fitted with a mounting flange (sensor model 8630-XXXX-VXXX40), this flange forms an integral part of the 8630 torque sensor and is calibrated with the sensor.
  • Page 23 The bracket is screwed onto the drive side of the 8630 torque sensor using six fixing screws. The screws must always be tightened in a star pattern to the specified tightening torques. Various screw holes allow a choice of options for attaching the bracket to the system structure.

  • Page 24: Electrical Connection

    Electrical connection Figure 13: Electrical connection 4.2.1 Power supply DANGER Electric shock hazard! Because of size constraints, the supply voltage, output voltage and USB socket are not galvanically isolated. This means that the device has common digital and analog grounds, which are connected to the housing. NOTICE •...

  • Page 25: Pin-Out Of The Electrical Socket

    4.2.3 Pin-out of the USB connector The USB interface complies with the USB 2.0 standard and the pin assignment is as usual. The built-in connector on the 8630 torque sensor is for a “Micro USB” plug. Name +5 V Data -...

  • Page 26: Power Supply For The 8630 Torque Sensor Fitted With Usb

    The 8630 torque sensor works in an operating voltage range of 5 … 30 V DC – measured at the 8630 torque sensor. When using cables of small cross-section or with an extension, you must take into account the voltage drop in the cable.

  • Page 27: Power Supply For The 8630 Torque Sensor Without Built-In Electronics

    With extension cables, the sensor rated output is affected by the cable length as a function of the bridge resistance and the conductor cross-section. Therefore always order extension cables at the same time as ordering the 8630 torque sensor. Make sure that calibration is performed on the complete assembly of the 8630 torque sensor plus extension cables.

  • Page 28: Running Cables

    Figure 17: Running a cable with excess length • Position the model 8630 torque sensor outside of the electromagnetic field of high-energy equipment. This includes transformers, motors, contactors, frequency converters and so forth. Otherwise the electromagnetic fields from such equipment will act with their full effect on the measuring chain, causing incorrect measurements.

  • Page 29: Measurement Operation

    A torque is clockwise (clockwise torque) if the torque is exerted clockwise when looking at the test side. In this case you will get a positive electrical signal at the output from the 8630 torque sensor. Figure 18: Clockwise torque (looking at the test side) You can use model 8630 torque sensors to measure both clockwise and counterclockwise torques.

  • Page 30: Check Function (For 8630 With Instrumentation Amplifier)

    (Excitation +) additionally to Pin 6 of the connector. As long as this voltage is applied to Pin 6, a precise voltage of 10.00 V is available at the output of the 8630 torque sensor. This can be used to calibrate indicators, input boards or other evaluation equipment connected to the output of the sensor.

  • Page 31: Calibration And Adjustment

    Calibration and adjustment Model 8630 torque sensors from burster präzisionsmesstechnik gmbh & co kg are already traceably adjusted and tested in the factory. As an option, we offer DAkkS or factory calibration of the model 8630 torque sensor. Factory calibration As part of the traceable burster factory calibration, the 8630 torque sensor is checked for calibratability, and is then calibrated and marked with a calibration label, and a calibration certificate is issued.

  • Page 32: Taking Out Of Use

    • Remove the 8630 torque sensor properly. • Protect the 8630 torque sensor from knocks. • Protect the 8630 torque sensor against bending moments. • Support the model 8630 torque sensor. • Do not drop the model 8630 torque sensor under any circumstances. of 34...

  • Page 33: Technical Data

    Technical data Please refer to the enclosed data sheet for the technical specification. The latest version of the data sheet is available at https://tinyurl.com/2x6ysd4e. Figure 21: Technical data QR code Electromagnetic compatibility Interference immunity Interference immunity in compliance with EN 61326-2-3:2006 Industrial environment Interference emission Interference emission in compliance with EN 61326-2-3:2006...

  • Page 34: Disposal

    Disposal Disposal If your torque sensor is no longer usable, please comply with your legal obligations by disposing of it in accordance with applicable regulations. You will then be helping to protect the environment! of 34...

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