Kistler 9215A Instruction Manual

Kistler 9215A Instruction Manual

Low force sensors
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Instruction
Manual
Low Force Sensors
Type 9215A, 9217A,
9217A1
9215A_002-936e-11.20

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Summary of Contents for Kistler 9215A

  • Page 1 Instruction Manual Low Force Sensors Type 9215A, 9217A, 9217A1 9215A_002-936e-11.20...
  • Page 3 Information in this document is subject to change without notice. Kistler reserves the right to change or improve its products and make changes in the content without obligation to notify any person or organization of such changes or improvements.
  • Page 4: Table Of Contents

    Characteristics of Low Level Force Sensors ..............10     Seal-Tightness ........................10 3.3.1     3.3.2 Characteristics of Type 9215A ..................11     3.3.3 Characteristics of Type 9217A/A1 ..................12     Installation and Startup ......................13  ...
  • Page 5 Content Dimensions of Force Introducing Cap for Types and 9217A/A1 ........29 8.2.1     8.2.2 Dimensions of Force Introducing Cap for Type 9215A ............29     Dimensions of Coupling Element for Types 9217A/A1 ............29 8.2.3    ...
  • Page 6: Introduction

    It will help you with the installation, maintenance, and use of this product. To the extent permitted by law Kistler does not accept any liability if this instruction manual is not followed or products other than those listed under Accessories are used.
  • Page 7: Important Notes

    Important Notes 2. Important Notes It is essential for you to study the following notes, which are for your personal safety during work, and to ensure long term, fault-free operation of this product. 2.1 For Your Safety  This product has been thoroughly tested and has left the factory in a perfectly safe condition.
  • Page 8: Unpacking

    Type 9215A, 9217A/A1 2.2 Unpacking Check all packaging for transport damage. Report any such damage to the transporters and to the authorized Kistler distributor. Check accessories delivered (see Section 8.3) before first use of the equipment. Report any missing parts to the authorized Kistler distributor.
  • Page 9: Hints On Using These Operating Instructions

    Please keep these operating instructions in a safe place where you can retrieve them at any time. If you lose these operating instructions, please contact your Kistler distributor and ask them for an immediate replacement. 9215A_002-936e-11.20 Page 7...
  • Page 10: General Description

     Miniature force plates, micro-manipulators, material testing equipment, measurement of the impact force of particles etc. Kistler low level force sensors are characterized by high rigidity and a high natural frequency. Their effective useful frequency range is, however, determined by the natural frequency of the entire measuring setup.
  • Page 11: Construction And Functional Principle Of The Low Level Force Sensors

    General Description 3.2 Construction and functional principle of the low level force sensors The construction of low level force sensors Types 9215A and 9217A/A1 is similar and is described and illustrated here using the example of Type 9217A. With all types, the sensor element consists of a package...
  • Page 12: Characteristics Of Low Level Force Sensors

    The seal-tightness of the sensor is therefore determined by the plug connection and the cable connector. With Kistler connecting cables, both the transition between connector and connection on the sensor and between connector and cable are sealed with an O-ring.
  • Page 13: Characteristics Of Type 9215A

    General Description 3.3.2 Characteristics of Type 9215A Type 9215A is the smallest sensor of the type series. The front side introduction of force is center-aligned with a diaphragm in the case, laterally supported and transfers the force to a transversal quartz package. Since the latter is mounted in the case with only minor preloading, the result is an asymmetric measuring range.
  • Page 14: Characteristics Of Type 9217A/A1

    Type 9215A, 9217A/A1 3.3.3 Characteristics of Type 9217A/A1 The front side introduction of force is center-aligned with a diaphragm in the case, laterally supported and transfers the force to a transversal quartz package. This is mounted preloaded in the case, so that tensile and compressive forces can be measured.
  • Page 15: Installation And Startup

    Installation and Startup 4. Installation and Startup 4.1 Important The low level force sensors Types 9215A and 9217A/A1 are precision instruments whose specifications can be fully utilized only when the instruments are used correctly and the specifications are retained only when the instruments are carefully handled.
  • Page 16 Type 9215A, 9217A/A1 Mounting thread Thread for the introduction of force Fig. 3: Installation with mounting thread Mounting Thread Type Mounting Thread Tightening Torque recommended maximum 9215A M5x0,5 0,5 Nꞏm 2 Nꞏm 9217A/A1 M10x1 2 Nꞏm 10 Nꞏm Head Piece Internal Thread...
  • Page 17: Adaptation Possibilities

    Installation and Startup 4.3 Adaptation Possibilities Where otherwise indicated, adaptation possibilities described and their requirements apply similarly to all low level force sensors. 4.3.1 Adaptation A: Introduction of Force via Force Introducing Cap Mounting plate Force introducing Fig. 4: Introduction of force via force introducing cap = Compressive force = Lateral force, for maximum permissible values, see page 27.
  • Page 18: Adaptation B: Force Introduced Via Fixed Connection

    Type 9215A, 9217A/A1 4.3.2 Adaptation B: Force Introduced via Fixed Connection Mounting plate Introduction of force Screw connection Fig. 5: Force introduced via fixed connection = Tensile/compressive force = Lateral force, for maximum permissible values see page 27 If the force is to be applied with a fixed screw connection to...
  • Page 19: Adaptation C: Mounting With Coupling Element

    Installation and Startup 4.3.3 Adaptation C: Mounting with Coupling Element Mounting plate Coupling element Introduction of force Screw connection Fig. 6: Mounting with coupling element = Tensile/compressive force = Lateral force, for maximum permissible values see page 27 If the force is introduced to the sensor with the coupling element Type 9405 via a screw connection, this can com- pensate for deviations to a certain extent, so as to reduce slightly the requirements for parallelism of mounting plate...
  • Page 20: Adaptation D: Mounting With Diaphragm

    Type 9215A, 9217A/A1 4.3.4 Adaptation D: Mounting with Diaphragm Mounting plate Diaphragm Fig. 7: Mounting with diaphragm = Tensile/compressive force = Lateral force, for maximum permissible values see page 27 Lateral forces can be included and decoupled from the tensile/compressive direction. Depending on the rigidity...
  • Page 21: Basic Circuitry And Wiring Of The Measuring Chain

     We recommend cleaning the two connectors of the connecting cable before connection with the cleaning and insulating spray Type 1003 from Kistler or with white spirit. The connector at the sensor is sealed with an O-ring. With some cables this is included separately and must be installed before connection to the connector.
  • Page 22 Type 9215A, 9217A/A1 The following illustration shows the elements required for connecting a low level force sensor such as Type 9217A to a charge amplifier such as charge amplifier Type 5015A. Laboratory measuring chain consisting of:  Low level force sensor, cable and charge meter Cable Type 1631C...
  • Page 23: Operation

    5. Operation 5.1 Setting the Charge Amplifier In conjunction with the Low Level Force Sensors Types 9215A and 9217A/A1 we recommend the use of a charge amplifier with sensitivity selection, e.g.  ICAM Type 5073A for industrial applications  ControlMonitor Type 5867B... or Type 5877AK… for process monitoring ...
  • Page 24: Resolution Of The Measuring Signal

    Type 9215A, 9217A/A1 5.3 Resolution of the Measuring Signal The resolution is the smallest possible change in the measurand able to be measured by the system. It is determined by the signal-to-noise ratio at the signal output of the charge amplifier. In the case of industrial charge amplifiers, the resolution with the highest gain is ...
  • Page 25: Tips For Good Measurands

    Operation Using the example of a low level force sensor Type 9217A (Sensitivity –105 pC/N) and a charge meter Type 5015A (Drift ±0,03 pC/s), we get the following drift in mechanical units:  0,03 pC/s   mN/s – pC/N A measurement of 10 minutes duration results in a drift ...
  • Page 26: Maintenance

    Type 9215A, 9217A/A1 6. Maintenance The Low Level Force Sensors Type 9215A and 9217A/A1 are reliable instruments, which require prac- tically no maintenance. Please study the following two sections in order to maintain long and reliable operation 6.1 Recalibrating the Instrument The Low Level Force Sensors are supplied calibrated.
  • Page 27: Maintenance Work

    7.2.  Clean the connectors of the Press Force Sensor or connecting cable regularly with very clean detergent, such as the cleaning and insulation spray Type 1003 from Kistler or with white spirit. 9215A_002-936e-11.20 Page 25...
  • Page 28: Troubleshooting

    Type 9215A, 9217A/A1 7. Troubleshooting 7.1 Fault-Finding and Remedy Below is a list of the frequent causes of malfunction and instructions on how to remedy these. If a fault occurs which you cannot correct, please contact your Kistler distributor. Fault Cause Remedy...
  • Page 29: Technical Data

    Please note that all technical data and all further infor- mation in this section can be changed at any time without prior notice. Check www.kistler.com for latest data sheet. Type 9215A 9217A 9217A1 Measuring range F z –20 ... 200 –500 ... 500 Overload F z –30/300...
  • Page 30: Dimensions

    Type 9215A, 9217A/A1 8.1 Dimensions 8.1.1 Dimensions Type 9215A Fig. 10: Dimensions Low Level Force Sensor Type 9215A 8.1.2 Dimensions Type 9217A/A1 Fig. 11: Dimensions Low Level Force Sensor Type 9217A/A1 Page 28 9215A_002-936e-11.20...
  • Page 31: Dimensions Of Accessories

    8.2.1 Dimensions of Force Introducing Cap for Types and 9217A/A1 Fig. 12: Force introducing cap Art. No. 3.220.139 8.2.2 Dimensions of Force Introducing Cap for Type 9215A Fig. 13: Force introducing cap Art. No. 3.220.217 8.2.3 Dimensions of Coupling Element for Types 9217A/A1 Fig.
  • Page 32: Dimensions Of Coupling Element For Type 9215A

    Type 9215A, 9217A/A1 8.2.4 Dimensions of Coupling Element for Type 9215A Fig. 15: Coupling element Type 9405A1 Page 30 9215A_002-936e-11.20...
  • Page 33: Accessories Included

    Technical Data 8.3 Accessories Included Ordering Code Type/Art. No. Scope of Delivery including Accessories Low Force Sensor 9215A M5x0,5, –20 ... 200 N  Force introducing cap 3.220.217  Fork wrench SW 3,5 5.210.445 Low Force Sensor 9217A M10x1, –500 ... 500 N ...
  • Page 34: Optional Accessories

    Type 9215A, 9217A/A1 8.4 Optional Accessories Type  Coupling element 9405 for Type 9217A/A1  Coupling element 9405A1 for Type 9215A  Connecting cable KIAG 10-32 pos. – BNC pos. Length 1 m 1631C1 Length 2 m 1631C2 Length 5 m...
  • Page 35: Annex

    Cable capacitance The capacitance, and thus the length of the connecting cable, has no influence on the measuring result when Kistler special cables and Kistler charge amplifiers are used. Calibrated measuring range Measuring range or part of the measuring range for which the sensor has been calibrated.
  • Page 36 Type 9215A, 9217A/A1 Disturbance Forces, moments and environmental influences acting on the sensor such as the temperature, which the sensor does not measure as a measurand and which produce an output signal (error). Example: when an additional bending moment acts on a force sensor.
  • Page 37 See "Coulomb". piezoelectric The characteristic of quartz crystals in which mechanical loading produces a proportional electric charge. quasistatic Describes the ability of Kistler sensors and charge amplifiers to undertake short-term measurements or DC- similar measurements. Range see "Measuring range"...
  • Page 38: Measurement Uncertainty

     1 % FSO Industrial charge amplifier Higher accuracy can be achieved with the following procedures:  Calibration in the Kistler factory  Calibration with charge amplifier Type 5395A  Restriction of the temperature range Random Errors, Precision, Reproducibility Precision or reproducibility is the extent of conformity between independent data measured under specified conditions.
  • Page 39: Linearity

    Errors due to zero drift caused by influences changing with time, such as the temperature, are thus basically excluded. With Kistler piezoelectric measuring chains, a typical repeatability within 0,1 % FSO can be assumed. 9.3 Linearity Sensor Linearity The quartz crystal produces an electric charge, which is exactly proportional to the load.
  • Page 40 Type 9215A, 9217A/A1 Best Straight Line – Mathematical Definition The minimization of maximum deviation is known as Chebyshev’s approximation. The best straight line is determined as follows:  x = measurand (reference)  Q = sensor charge signal or output signal from the charge amplifier ...
  • Page 41: Frequency Range

    Annex 9.4 Frequency Range Because of their mechanical quality, piezoelectric sensors have very low damping. The useful frequency range is limited in the upwards direction by the increasing reson- ance rise. Key: f Measuring frequency Natural frequency Amplitude ratio The following approximate values apply to the amplitude error or achievable accuracy as a function of frequency: ...
  • Page 42: Influence Of Temperature

    Type 9215A, 9217A/A1 In their dynamic behavior, piezoelectric sensors are superior to all other measuring methods. Their high rigidity results in the highest possible natural frequencies. Piezoelectric sensors are thus ideal for measuring measurands which change rapidly over time. Their dynamic behavior is thereby largely determined by the surrounding structure.
  • Page 43 Annex Temperature Gradient Error (Dynamic Error) A temporary change in the output signal is denoted as temperature gradient error, when the temperature of the environment or surrounding medium changes with a certain rate. In this case, the sensor is not in thermal equilibrium with the environment.

This manual is also suitable for:

9217a9217a1

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