Kistler 4502A Series User manual

Instruction
Manual
Mini-Smart Torque
Sensor
Type 4502A...
Version Q
(with standard square
connections)
Version H
(with standard hexagon
connections)
Version QA/HA
(with rotating angle
measuring system)
Version RA
(with round shaft and
rotation angle measure-
ment)
4502A_002-407e-02.22

Foreword
4502A_002-407e-02.22 Page 1
Foreword
This manual applies to the torque sensor Type 4502A… .
The instruction manual must be kept on hand for future
use, and must be available at the site of implementation of
the torque sensor, as needed.
The specifications in this manual can change at any time
without prior notification. Kistler reserves the right to im-
prove and to change the product for the purpose of tech-
nical progress without the obligation to inform persons and
organizations as the result of such changes.
Original language of these operating instructions: German
©2003 … 2022 Kistler Group. All rights reserved.
Kistler Group
Eulachstrasse 22
8408 Winterthur
Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.kistler.com

Mini-Smart Torque Sensor, Type 4502A...
Page 2 4502A_002-407e-02.22
Content
1. Introduction ................................................................................................................................... 3
2. Important information.................................................................................................................... 4
2.1 Disposal instructions for electrical and electronic equipment ................................................ 4
3. Application and key features.......................................................................................................... 5
4. Description of the measuring system............................................................................................. 6
4.1 Mechanical design................................................................................................................ 6
4.2 Electrical block diagram ........................................................................................................ 7
4.2.1 Examples of application ........................................................................................... 8
4.3 Rotation angle measuring system (Version QA, HA and RA only) ........................................ 9
4.4 Adjustment for angle-pulse output (Version QA, HA, RA only).......................................... 10
5. Electrical connections................................................................................................................... 11
5.1 Plug connection (Tuchel, 12 pin) ........................................................................................ 12
5.1.1 Installing the signal lead ........................................................................................ 12
5.2 Instruction for electrical installation .................................................................................... 13
5.3 Connection cable ............................................................................................................... 14
6. Mechanical application ................................................................................................................ 16
6.1 Versions Q, QA, H and HA ................................................................................................ 16
6.2 Torque measuring shaft version RA .................................................................................... 17
6.3 Possible installation of version R/RA................................................................................... 17
6.4 Supply circuit and evaluation.............................................................................................. 18
7. Static calibration .......................................................................................................................... 19
7.1 Construction of a simple calibration device......................................................................... 19
7.2 Calculation example for lever arm length ........................................................................... 20
8. Maintenance ................................................................................................................................ 21
9. Repairs ......................................................................................................................................... 22
10. Ordering key ................................................................................................................................ 23
11. Index ............................................................................................................................................ 24
Total Pages 26

Introduction
4502A_002-407e-02.22 Seite 3
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
torque
Piezoresistive pressure sensors and transmitters
Signal conditioners, indicators and calibrators
Electronic control and monitoring systems as well as
software for specific measurement applications
Data transmission modules (telemetry)
Electromechanical NC joining modules and force-
displacement monitors
Test stand systems for electric motors and gear units for
laboratory, manufacturing, and quality assurance
Kistler also develops and produces measuring solutions for
the application fields engines, vehicles, manufacturing,
plastics and biomechanics sectors.
Our product and application brochures will provide you
with an overview of our product range. Detailed data
sheets are available for almost all products.
If you need additional help beyond what can be found
either on-line or in this manual, please contact Kistler's ex-
tensive support organization.

Mini-Smart Torque Sensor, Type 4502A...
Seite 4 4502A_002-407e-02.22
2. Important information
2.1 Disposal instructions for electrical and electronic equipment
Do not discard old electronic instruments in municipal
trash. For disposal at e
nd of life, please return this
product to an authorized local electronic waste disposal
service or contact the nearest Kistler Instrument sales
office for return instructions.

Application and key features
4502A_002-407e-02.22 Seite 5
3. Application and key features
Torque sensor with strain gages measuring system
Wear-resistant transmission of the measuring signal,
integrated amplifier
Measurement of constant and variable torques
Torque measurement on the rotating shaft
Integrated system for rotation angle measurement (only
version QA/HA)
Application in the laboratory, manufacture and quality
control
Ideal for use with power tools (version QA/HA) and
test stand construction (version RA)
Suitable for low and high speed ranges
Fig. 1: Mini-Smart torque sensor Type 4502A…
Torque
Rotation angle
Measuring electronics
Strain gage
measuring shaft
11 ... 26 VDC

Mini-Smart Torque Sensor, Type 4502A...
Seite 6 4502A_002-407e-02.22
4. Description of the measuring system
4.1 Mechanical design
Torque sensors model Mini Smart consist of a base body
which contains the measuring shaft. The shaft ends are
performed as standard square connections or standard
hexagon ends.
On the measuring shaft there is a torsion distance with
strain gages and electronics with signal amplifier and A/D
transformer.
The connection box of the base body contains the statio-
nary electronics for the signal formation.
The base body of the sensor offers different assembly pos-
sibilities (see chapter "Mechanical application").
Fig. 2: Mechanical design Mini-Smart torque sensor
Type 4502A...
Square socket
(version Q/
QA)
or hexagon socket
(version H/HA
/R/RA)
Square end
(version Q
/QA)
or hexagon end
(version H/HA/R/RA
)
Cable connector
Shaft
Bearing
Sensor
Strain gauges
Bearing
Rotation angle measuring system
(only version QA/HA)
Rotating electronics
External electronics

Description of the measuring system
4502A_002-407e-02.22 Seite 7
4.2 Electrical block diagram
Fig. 3: Electrical block diagram
Feed and inspection input of electronic
measuring equipment, electrically isolated
Stator
Rotor
Internal power supply
Opto-
coupler
Logic and
modulator
Fiber optic
rotary
joint
Control
DMS
Rotor
electronics
Output ±5 V
Feed
11 ... 26 VDC
Control
5 ... 30 VDC
F
K
C
E
A
D
Frequency/
potential
transformer
Strain gages
measuring
system
(DMS)

Mini-Smart Torque Sensor, Type 4502A...
Seite 8 4502A_002-407e-02.22
4.2.1 Examples of application
Exactly use of electrical isolation for feed and measuring
signal.
Fig. 4: Separate speed and measuring supply
Shared access measuring supply for feed and measuring
supply.
Interlink the feed and measuring supply, evaluation elec-
tronic is to be made.
Fig. 5: Feed and measuring supply in the evaluation
electronic combined
F
E
K
A
C
D
M
Feed
Control
Feed
output
Shield
Feed device
Evaluation
electronic
Type 4502A…
F
E
K
A
C
D
M
Type 4502A…
Feed
Control
Feed
output
Shield
Evaluation
electronic
Feed device

Description of the measuring system
4502A_002-407e-02.22 Seite 9
4.3 Rotation angle measuring system (Version QA, HA and RA only)
Fig. 6: Diagram showing the design of the rotation
angle measuring system
1. Rotating shaft
2. Pulse disk
3. Forked light barrier with LED and photo diode
4. Operation amplifier
Features
360 light-dark stripes on the pulse disk
Two forked light barriers shifted by phase angle 90 °
Pulse number proportional to the rotation angle
0 V +5 V
1.
2.
3.
3.
4.
E
H
G
B
0 V