LORENZ MESSTECHNIK DR-2800 User manual

LORENZ MESSTECHNIK GmbH
Obere Schloßstr.131
73553 Alfdorf
07172 / 93730-0
Fax [phone]
E-Mail: [e-mail]
Technical changes under reserve
090329a.docx
Internet: www.lorenz-sensors.com
Page 1 of 15
Operation Manual
for Torque Sensor
Type DR-2800

LORENZ MESSTECHNIK GmbH
Obere Schloßstr.131
73553 Alfdorf
07172 / 93730-0
Fax [phone]
E-Mail: [e-mail]
Technical changes under reserve
090329a.docx
Internet: www.lorenz-sensors.com
Page 2 of 15
Imprint
Manufacturer, Place
Lorenz Messtechnik GmbH, D-73553 Alfdorf.
Valid for...
Torque sensor type DR-2554
Copyright
© 2012 Lorenz Messtechnik GmbH, Alfdorf.
Interdiction of Reprint
Reprint in whole or in part with written permission, only.
Change Notice
Technical changes are reserved.

LORENZ MESSTECHNIK GmbH
Obere Schloßstr.131
73553 Alfdorf
07172 / 93730-0
Fax [phone]
E-Mail: [e-mail]
Technical changes under reserve
090329a.docx
Internet: www.lorenz-sensors.com
Page 3 of 15
References in this Text
1.6 Warning Notes; Page 6
Attention must be paid to the accident prevention regulations of the trade associations.
Coverings and casings are necessary before operating the sensor. This is also valid for
commissioning, maintenance and trouble shooting.
Duties of the coverings and casings are:
Protection from detaching parts
Protection from contusion and shear
Prevention from reaching rotating parts
Prevention from being tangled up and/or getting caught by parts
Coverings may
Not grind
Not rotate
Coverings are also necessary outside of operating and motion travel areas of persons.
These demands can be modified if other sufficient safety devices are available. During
operation, the safety precautions must be operative. Vibrations can cause device
damages. .
4 Mechanical Assembly; Page 8
Caution: Inadmissibly large forces may not act on the sensor or the couplings during the
assembly. Connect the sensor electrically during the assembly and observe the signal, the
measurement signal may not exceed the limit values
To avoid falling down, the sensor must be supported during the assembly.
Admissible assembly offset from rotor to stator: 4.2 Stator Assembly
Caution! At alternating torque, the screws for the flange connections must absolutely be
secured with screw locks.
4.4.1 Alignment of the Measurement Arrangement; Page 11
For details see the manual of the couplings and data sheet of the torque sensor for the
limit thrust load and the limit shear force.
6.1 Engaging; Page 12
The warm-up period of the torque sensor is approx. 5 minutes.
6.4.2 Torsional Natural Resonances; Page 12
Operation of the device in natural resonance can lead to permanent damages.
6.4.3 Bending Natural Resonances; Page 13
Operation of the device in bending natural resonance can lead to permanent damages.

LORENZ MESSTECHNIK GmbH
Obere Schloßstr.131
73553 Alfdorf
07172 / 93730-0
Fax [phone]
E-Mail: [e-mail]
Technical changes under reserve
090329a.docx
Internet: www.lorenz-sensors.com
Page 4 of 15
Contents
1Read First.............................................................................................................................................. 5
1.1 Safety and Caution Symbols.......................................................................................................... 5
1.2 Intended Use.................................................................................................................................. 5
1.3 Dangers.......................................................................................................................................... 5
1.3.1 Neglecting of Safety Notes ..................................................................................................... 5
1.3.2 Residual Dangers ................................................................................................................... 5
1.4 Reconstructions and Modifications ................................................................................................ 5
1.5 Personnel ....................................................................................................................................... 5
1.6 Warning Notes ............................................................................................................................... 6
2Term Definitions .................................................................................................................................... 6
2.1 Terms ............................................................................................................................................. 6
2.2 Definition of the Pictograms on the Torque Sensor ....................................................................... 6
3Product Description ............................................................................................................................... 6
3.1 Mechanical Setup........................................................................................................................... 7
3.2 Electrical Setup .............................................................................................................................. 7
4Mechanical Assembly............................................................................................................................ 8
4.1 Rotor Assembly.............................................................................................................................. 8
4.2 Stator Assembly ............................................................................................................................. 9
4.3 Basic Assembly.............................................................................................................................. 9
4.3.1 Assembly Example ................................................................................................................. 9
4.3.2 Using Center Bore ................................................................................................................ 10
4.4 Couplings ..................................................................................................................................... 10
4.4.1 Alignment of the Measurement Arrangement....................................................................... 11
5Electrical Connection........................................................................................................................... 11
5.1 Pin Connection............................................................................................................................. 11
5.2 Cable............................................................................................................................................ 11
5.3 Shielding Connection ................................................................................................................... 11
5.4 Installation of Measuring Cables.................................................................................................. 11
5.5 Speed Sensor (Option) ................................................................................................................ 12
6Measuring............................................................................................................................................ 12
6.1 Engaging ...................................................................................................................................... 12
6.2 Direction of Torque....................................................................................................................... 12
6.3 Static / Quasi-Static Torques ....................................................................................................... 12
6.4 Dynamic Torques ......................................................................................................................... 12
6.4.1 General ................................................................................................................................. 12
6.4.2 Torsional Natural Resonances ............................................................................................. 12
6.4.3 Bending Natural Resonances ............................................................................................... 13
6.5 Speed Limits ................................................................................................................................ 13
6.5.1 Balancing .............................................................................................................................. 13
6.6 Disturbance Variables .................................................................................................................. 13
7Maintenance........................................................................................................................................ 13
7.1 Rotating Sensors.......................................................................................................................... 13
7.2 Trouble Shooting.......................................................................................................................... 14
8Transportation and Storage ................................................................................................................ 14
8.1 Transportation .............................................................................................................................. 14
8.2 Storage......................................................................................................................................... 14
9Disposal............................................................................................................................................... 15
10 Calibration........................................................................................................................................ 15
10.1 Proprietary Calibration.............................................................................................................. 15
10.2 DKD-Calibration........................................................................................................................ 15
10.3 Re-Calibration........................................................................................................................... 15
11 Data Sheet....................................................................................................................................... 15
12 Literature.......................................................................................................................................... 15

LORENZ MESSTECHNIK GmbH
Obere Schloßstr.131
73553 Alfdorf
07172 / 93730-0
Fax [phone]
E-Mail: [e-mail]
Technical changes under reserve
090329a.docx
Internet: www.lorenz-sensors.com
Page 5 of 15
1 Read First
1.1 Safety and Caution Symbols
Caution:
Injury risk for persons
Damage of the device is possible.
Note:
Important points to be considered.
1.2 Intended Use
Lorenz Messtechnik GmbH devices may only be used for measurement tasks and the directly related
control tasks. Any other use is considered improper. The torque sensors are not safety components in the
sense of the intended use. The sensors need to be transported and stored appropriately. The assembly,
commissioning and disassembling must take place professionally.
1.3 Dangers
The torque sensor is fail-safe and corresponds to the state of technology.
1.3.1 Neglecting of Safety Notes
At inappropriate use, residual dangers can emerge (e.g. by untrained personnel). The operation manual
must be read and understood by each person entrusted with the assembly, maintenance, repair,
operation and disassembly of the torque sensor.
1.3.2 Residual Dangers
The plant designer, the supplier, as well as the operator must plan, realize and take responsibility for
safety-related interests for the sensor. Residual dangers must be minimized. Residual dangers of the
torque measurement technique must be pointed out.
Human mistakes must be considered. The construction of the plant must be suitable for the avoidance of
dangers. A danger-analysis for the plant must be carried out.
1.4 Reconstructions and Modifications
Each modification of the sensors without our written approval excludes liability on our part.
1.5 Personnel
The installation, assembly, commissioning, operation and the disassembly must be carried out by
qualified personnel only. The personnel must have the knowledge and make use of the legal regulations
and safety instructions.
.