HBM TB1A Manual de usuario

A01627.0 en/de/fr

Reference

torque measuringdisc

Referenz

Drehmomentmessscheibe

Couplemètre

disque de référence

TB1A

Mounting instructions

Montageanleitung

Notice de montage

English Page 3 − 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Deutsch Seite 27 − 49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Français Page 51 − 73. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TB1A

HBMA01627.0en/de/fr

Contents Page

Safety instructions 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 Scope of supply 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2Application 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3Structure and mode of operation 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.1 Mechanical structure 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 Mounting 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.1 General installation notes 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2 Mounting position 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.3 Conditions on site 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.4 Mechanical installation 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.5 Loading capacity 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 Electrical connection 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.1 Notes for cabling 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.2 Fourwire technique 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 Maintenance 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7Accessories 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8 Specifications 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9Dimensions 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4TB1A

HBM A01627.0en/de/fr

Safety instructions

Use in accordance with the regulations

Reference torque measuringdiscs TB1A are used exclusively for torque

measurement tasks and control and adjustment tasks directly connected

thereto. Use for any additional purpose shall be deemed to be not in

accordance with the regulations.

In the interests of safety, the transducer should only be operated as described

in the Mounting Instructions. It is also essential to observe the appropriate

legal and safety regulations for the application concerned during use. The

same applies to the use of accessories.

The transducer is not a safety element within the meaning of its use as in

tended. Proper and safe operation of this transducer requires proper

transportation, correct storage, assembly and mounting and careful operation.

General dangers of failing to follow the safety instructions

The transducer corresponds to the state of the art and is failsafe. The

transducer can give rise to remaining dangers if it is inappropriately installed

and operated by untrained personnel.

Everyone involved with the installation, commissioning, maintenance or repair

of the transducer must have read and understood the Operating Manual and

in particular the technical safety instructions.

Remaining dangers

The scope of supply and performance of the transducer covers only a small

area of torque measurement technique. In addition, equipment planners,

installers and operators should plan, implement and respond to the safety

engineering considerations of torque measurement technique in such a way

as to minimize remaining dangers. Prevailing regulations must be complied

with at all times. Reference must be made to remaining dangers connected

with torque measurement technology.

TB1A

HBMA01627.0en/de/fr

In this Mounting Instruction remaining dangers are pointed out using the

following symbols:

Symbol: DANGER

Meaning: Highest level of danger

Warns of a directly dangerous situation in which failure to comply with safety

requirements will lead to death or serious physical injury.

Symbol: WARNING

Meaning: Possibly dangerous situation

Warns of a potentially dangerous situation in which failure to comply with

safety requirements can result in death or serious physical injury.

Symbol: CAUTION

Meaning: Potentially dangerous situation

Warns of a potentially dangerous situation in which failure to comply with

safety requirements could result in damage to property or some form of

physical injury.

6TB1A

HBM A01627.0en/de/fr

Symbols pointing out notes on use and waste disposal as well as useful

information:

Symbol: NOTE

Means that important information about the product or its handling is being

given.

Symbol:

Meaning: CE mark

The CE mark enables the manufacturer to guarantee that the product com

plies with the requirements of the relevant ECdirectives (the declaration of

conformity is available at http://www.hbm.com/HBMdoc).

Symbol:

Meaning: Statutory marking requirements forwaste disposal

National and local regulations regarding the protection of the environment and

recycling of raw materials require old equipment to be separated from regular

domestic waste for disposal.

For more detailed information on disposal, please contact the local authorities

or the dealer from whom you purchased the product.

TB1A

HBMA01627.0en/de/fr

Conversions and modifications

The transducer must not be modified from the design or safety engineering

point of view except with our express agreement. Any modification shall ex

clude all liability on our part for any damage resulting therefrom.

Qualified personnel

Qualified personnel means persons entrusted with the installation, fitting,

commissioning and operation of the product who possess the appropriate

qualifications for their function.

The transducer must only to be installed and used by qualified personnel,

strictly in accordance with the specifications and with safety requirements and

regulations. It is also essential to observe the appropriate legal and safety re

gulations for the application concerned during use. The same applies to the

use of accessories.

Prevention of accidents

According to prevailing accident prevention regulations, it is essential that

after mounting the transducers the user fits a cover or enclosure as follows:

•The cover or enclosure must not be able rotate.

•The cover or enclosure shall protect against crushing or cutting and provide

protection against parts that might come loose.

•The covers and enclosures shall be installed at a safe distance from

moving parts or shall prevent anyone putting their hand inside.

•The covers and enclosures shall even be fitted if the moving parts are

installed in areas to which persons do not usually have access.

The above regulations may only be diverged from, if machine parts are

already sufficiently protected owing to the design of the machine or because

other precautions have been taken.

8TB1A

HBM A01627.0en/de/fr

1 Scope of supply

The scope of supply includes the following:

1Reference torque measuringdisc

1 Mounting Instructions

1 Test record

2Application

Transducers measure static and dynamic torques in nonturning mode. The

nominal torques fall within the range 100 N⋅m to 10kN⋅m.

Transfertorque transducer

The main applications are torque transfer, for example, when calibrating

reference transducers in test and calibration machines and comparisons of

the reference normals of various calibration laboratories.

In the case of transfer transducers, a high degree of comparability is import

ant, as when relaying torque, this provides a gage for various observers, test

conditions, laboratories and the installation and time situation. So for relay, the

same installation conditions should be created as for calibration in the refe

rence normal, or relevant adapters (for recommendations, see Page 17f)

should be included in the calibration.

Reference torque transducer

Reference torque transducers are mounted in a calibration device and then

the entire calibration machine is qualified or certified by means of transfer

torque transducers, for example. The precise sensitivity of the transducer is

thus less important.

General torque measurements in nonturning mode

Because of the high mechanical loading capacity, the permissible vibration

bandwidth of 160% (10kN⋅m=120%) of nominal torque and the compact

design, the transducers are also eminently suitable for use in testing

machines for component testing (rotary alternating stress) or as reaction

torque transducers, for example in agitators with direct drive motor or gearbox

connection.

TB1A

HBMA01627.0en/de/fr

3Structure and mode of operation

3.1 Mechanical structure

The reference torque measuringdisc comprises a measuring body applied

with strain gages and a mounting flange screw fitted to it.

Measuring body

Mounting flange

Measuring side

Fig.3.1: Mechanical structure

4 Mounting

4.1 General installation notes

When the torque measuringdisc is fitted in test benches, the test bench

components (frame, couplings, mounting flanges, screw fittings, etc.), affect

the deflection performance in the shaft run and thus the measuring

characteristics (zero point, sensitivity, reproducibility). The causes for this can

include:

•Additional parasitic loadings such as radial forces, axial forces or bending

moments

•Asymmetrical torque introduction in the transducers

10 TB1A

HBM A01627.0en/de/fr

•Different stiffness conditions in the shaft run to those of transducer

calibration

These test bench reactions on the reference transducer are calibrated in by

adaptable leverground systems, for example.

Torque transducer

to be calibrated

Blocking device

TB1A

Leverforce device

for static torque

Calibration test device with

reference transducer

Fig.4.1: Typical installation in a calibration test device

Parasitic loadings

Parasitic loadings are caused by deformations in the shaft run. They result in

an additive effect on the zero signal of the torque measuringdisc (see

Specifications). If they occur during a torque loading, they cause an apparent

change in sensitivity.

Countermeasures:

1. Optimum alignment of the shaft run (note alignment data in the

Specifications!).

As long as you do not exceed the permissible limits for bending moments,

transverse force and longitudinal force, no special couplings or other

measures are required to install the reference torque measuringdisc

(effect on the measurement result approx. 1% of nominal torque).

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