Kistler 9329A User manual

Instruction
manual
Reaction torque
sensors
Types 9329A, 9339A,
9349A, 9369A,9389A
9329A_002-267e-12.23

Foreword
9329A_002-267e-12.23 Page 1
Foreword
We thank you for choosing a Kistler quality product distin-
guished by technical innovation, precision and long life.
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.
© 2009 … 2023 Kistler Group. All rights reserved. Except as
expressly provided herein, no part of this manual may be repro-
duced for any purpose without the express prior written consent
of Kistler Group.
Kistler Group
Eulachstrasse 22
8408 Winterthur
Switzerland
Tel. [phone]
[e-mail]
www.kistler.com

Reaction torque sensors Type 9329A, 9339A, 9349A, 9369A, 9389A
Page 2 9329A_002-267e-12.23
Content
1. Introduction ................................................................................................................................................. 4
2. Important notes........................................................................................................................................... 5
2.1 For your safety................................................................................................................................... 5
2.2 Unpacking.......................................................................................................................................... 6
2.3 Notes on using the reaction torque sensor ........................................................................................ 6
2.4 Hints on using these operating instructions ....................................................................................... 7
3. General description .................................................................................................................................... 8
3.1 What is the purpose of the reaction torque sensor? .......................................................................... 8
3.2 Construction and functional principle of the reaction torque sensor................................................... 9
4. Examples of applications......................................................................................................................... 10
4.1 Calibration of a stationary torque measuring screwdriver................................................................ 10
4.2 Calibration of torque wrenches ........................................................................................................ 11
4.3 Torque testing of potentiometers ..................................................................................................... 12
4.4 Torque testing of ignition switches................................................................................................... 13
5. Installation and startup............................................................................................................................. 14
5.1 Important notes................................................................................................................................ 14
5.2 Installing the reaction torque sensor................................................................................................ 14
5.3 Overview of installation variants ...................................................................................................... 16
5.3.1 Adaptation A: installation in shaft with adapter for shaft journal with pin.......................................... 17
5.3.2 Adaptation B: installation in shaft with adapter flange...................................................................... 19
5.3.3 Adaptation C: installation in shaft with integrated flange.................................................................. 21
5.3.4 Adaptation D: adapter flange for wrenches with external square head............................................ 23
5.3.5 Adaptation E: screw plate with spring assembly.............................................................................. 25
5.3.6 Adaptation F: desktop installation with mounting flange .................................................................. 27
5.4 Basic circuitry and connections for the measuring chain ................................................................. 29
6. Operation................................................................................................................................................... 30
6.1 Charge amplifier settings ................................................................................................................. 30
6.2 Measuring signal polarity ................................................................................................................. 30
6.3 Measuring signal resolution ............................................................................................................. 31
6.4 Quasistatic measurements .............................................................................................................. 31
6.5 Sensitive measurement under high basic load ................................................................................ 32
6.6 Hints for obtaining good measuring results...................................................................................... 34
7. Maintenance .............................................................................................................................................. 35
7.1 Recalibration.................................................................................................................................... 35
7.2 Maintenance work............................................................................................................................ 35
8. Troubleshooting........................................................................................................................................ 36
8.1 Location of faults and remedies....................................................................................................... 36
8.2 Repairing the reaction torque sensor............................................................................................... 36
9. Technical data ........................................................................................................................................... 37
9.1 Reaction torque sensors Type 9329A ... 9389A .............................................................................. 37
9.2 Dimensions reaction torque sensor Type 9329A ... 9389A.............................................................. 38
9.3 Accessories included....................................................................................................................... 39
9.4 Optional accessories ....................................................................................................................... 40

Content
9329A_002-267e-12.23 Page 3
10. Annex......................................................................................................................................................... 41
10.1 Glossary .......................................................................................................................................... 41
10.2 Measurement uncertainty ................................................................................................................ 44
10.3 Linearity........................................................................................................................................... 45
10.4 Frequency range ............................................................................................................................. 47
10.5 Influence of temperature.................................................................................................................. 48
11. Index .......................................................................................................................................................... 50
Total pages 51

Reaction torque sensors Type 9329A, 9339A, 9349A, 9369A, 9389A
Page 4 9329A_002-267e-12.23
1. Introduction
Please take the time to thoroughly read this instruction manual.
It will help you with the installation, maintenance, and use of
this product.
Kistler offers a wide range of products for use in measuring
technology:
Piezoelectric sensors for measuring force, torque, strain,
pressure, acceleration, shock, vibration and acoustic-
emission
Strain gage sensor systems for measuring force and
moment
Piezoresistive pressure sensors and transmitters
Signal conditioners, indicators and calibrators
Electronic control and monitoring systems aswell as
application-specific software for measuring technology
Data transmission modules (telemetry)
Kistler also develops and produces measuring solutions for the
application fields engines, vehicles, manufacturing, plastics and
biomechanics.
Our product and application brochures will provide you with an
overview of our product range. Detailed data sheets are availa-
ble for almost all products.
If you need additional help beyond what can be found
either in this manual or on www.kistler.com, please contact your
Kistler distributor who will also assist you for application specific
questions.

Important notes
9329A_002-267e-12.23 Page 5
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. In order to maintain this
condition and ensure safe operation, compliance is required
with the instructions and warning notes in these Operating
Instructions.
The reaction torque sensor must be installed, operated and
maintained only by persons who are familiar with this prod-
uct and who are adequately qualified for the work involved.
If it is to be assumed that safe operation is no longer possi-
ble, the equipment must be shut down and made safe
against being accidentally started up.
Safe operation must be assumed to be no longer possible
when the product
shows visible signs of damage,
has been overloaded,
is no longer operating,
has been in lengthy storage under unsuitable conditions
and,
has been subjected to rough transport conditions.
Fix the reaction torque sensor in position as prescribed.
Details can be found in Section 5.2 "Installing the
reaction torque sensor".
Secure all parts mounted on the reaction torque sensor ac-
cording to anticipated moments!

Reaction torque sensors Type 9329A, 9339A, 9349A, 9369A, 9389A
Page 6 9329A_002-267e-12.23
2.2 Unpacking
Check all packaging for transport damage. Report any such
damage to the transporters and to the authorized Kistler distrib-
utor.
Check accessories delivered (see Section 9.3) before first use
of the equipment. Report any missing parts to the authorized
Kistler distributor.
2.3 Notes on using the reaction torque sensor
The reaction torque sensor must be used only under the en-
vironmental and operating conditions specified.
With piezoelectric sensors, insulation resistance is of crucial
importance; it must be approx. 1014 Ω(but not less than 1013
Ω). In order to preserve this value, all plug-and-socket con-
nections must be kept absolutely clean and dry. The insula-
tion resistance can be measured with the insulation tester
Type 5493.
Protect the connector of the Reaction Torque Sensor
against contamination and on no account touch it with your
fingers (connector front). Fit the cover supplied over the
connector when it is not in use.
A high-insulation cable is used to connect the reaction
torque sensor to a charge amplifier. Once fitted, it should if
possible remain connected to the sensor. Use only specified
connecting cables .
We recommend you to protect the cable connector at the
sensor against damage by screwing on the connector cover
provided.
Protect the reaction torque sensor when it is not in use by
storing it in its original packaging.

Important notes
9329A_002-267e-12.23 Page 7
2.4 Hints on using these operating instructions
We recommend you to read the entire operating instructions
carefully. However, if you are in a hurry and already have expe-
rience with Kistler Reaction Torque Sensors, you can confine
yourself to reading the specific information needed.
We have attempted to give these instructions a clear presenta-
tion to make it easier for you to gain direct access to the infor-
mation you need.
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.

Reaction torque sensors Type 9329A, 9339A, 9349A, 9369A, 9389A
Page 8 9329A_002-267e-12.23
3. General description
3.1 What is the purpose of the reaction torque sensor?
Reaction torque sensors are used to measure dynamic and
quasistatic torques.
The main areas of application are:
Calibration
Calibration of manual torque wrenches
Torque setting of pneumatic screwdrivers
Research and development
Measurement of irregular motion and torsional vibrations on
small servo and stepper motors
Measurements of starting torques on electric motors
Measurements on fluid and slipping clutches
Viscosity measurements
Measuring the coefficient of friction of bearings
Designing torsion springs and damping elements
Development of locks and rotary switches
Lubricant development
Biomechanics and ergonomic measurements
Production engineering
Monitoring automated screwing processes
Monitoring boring and cutting processes
Quality control
Testing screw connections
Torsion testing of springs
Testing the torque characteristics of hinges
Testing rotary switches
Testing of screw caps
The hole pattern of the bilaterally integrated flange and the op-
tional accessories enable Kistler reaction torque sensors to be
adapted to almost any task. Bilateral centering seats and the
included centering rings assist in the precise axial application of
torque. A centric bore can be used for shaft bushing.
Kistler reaction torque sensors are distinguished by high
rigidity and a high natural frequency. The effective useful fre-
quency range is, however, determined by the natural
frequency of the entire test arrangement. The high resolution ena-
bles the tiniest dynamic changes to be measured, even where
large torques are involved.
Kistler reaction torque sensors are calibrated prior to
delivery and can be used immediately.