HBM RTN Manuel utilisateur

Mounting Instructions | Montageanleitung |

Notice de montage

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RTN

Hottinger Baldwin Messtechnik GmbH

Im Tiefen See 45

D-64293 Darmstadt

Tel. +49 6151 803-0

Fax +49 6151 803-9100

[email protected]

www.hbm.com

Mat.: 7-0101.0030

DVS: A01153_03_Y00_01 HBM: public

04.2020

EHottinger Baldwin Messtechnik GmbH.

Subject to modifications.

All product descriptions are for general information only.

They are not to be understood as a guarantee of quality or

durability.

Änderungen vorbehalten.

Alle Angaben beschreiben unsere Produkte in allgemeiner

Form. Sie stellen keine Beschaffenheits- oder Haltbarkeits

garantie dar.

Sous réserve de modifications.

Les caractéristiques indiquées ne décrivent nos produits

que sous une forme générale. Elles n'impliquent aucune

garantie de qualité ou de durablilité.

Mounting Instructions | Montageanleitung |

Notice de montage

English Deutsch Français

RTN

2A01153_03_Y00_01 HBM: public RTN

English

1 Safety instructions 3........................................

2 Markings used 7............................................

2.1 Markings used in this document 7..............................

2.2 Symbols on the device 7......................................

3 Application 8...............................................

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

5 Electrical connection 12......................................

5.1 Connection in a 4-wire configuration 12..........................

5.2 Plug connection (optional) 13...................................

5.3 Parallel connection of several transducers 14.....................

5.4 Shortening and extending the cable 14..........................

5.5 EMC protection 15............................................

6 Corrosion protection and maintenance 17.....................

7 Specifications 18............................................

8 Dimensions of the RTN... load cell 19.........................

9 Mounting accessories 21.....................................

Safety instructions

RTN A01153_03_Y00_01 HBM: public 3

1 Safety instructions

Intended use

Load cells of the RTN…type series are designed for technical weighing

applications within the load limits detailed in the specifications. Any other use is

not the intended use.

The load cells may only be installed by qualified personnel in compliance with

the specifications and with the safety requirements and regulations of these

mounting instructions. It is also essential to observe the applicable legal and

safety regulations for the application concerned. The same applies to the use

of accessories.

Load cells are not intended for use as safety components. Please also refer to

the “Additional safety precautions” section. Proper and safe operation of the

load cells requires proper transportation, correct storage, siting and mounting,

and careful operation.

Load-carrying capacity limits

Comply with the data in the technical data sheets when using the load cells.

The respective specified maximum loads in particular must never be exceeded.

Do not exceed the values stated in the technical data sheets, for example, for

Slimit load

Slateral load limiting

Sbreaking loads

Stemperature limits

Slimits of electrical load-carrying capacity

Note that when several load cells are installed in a scale, there is not always an

even load distribution on the individual load cells.

Use as machine elements

The load cells can be used as machine elements. When used in this manner, it

must be noted that, to favor greater sensitivity, the load cell is not designed

with the safety factors usual in mechanical engineering. Please refer to the

“Load-carrying capacity limits” section and the specifications.

Safety instructions

4A01153_03_Y00_01 HBM: public RTN

Accident prevention

The applicable accident prevention regulations from employers’ liability

insurance associations must be taken into account, even though the stated

load in the destructive range is well in excess of the full scale value.

Additional safety precautions

Load cells cannot (as passive transducers) implement any (safety-relevant)

cutoffs. This requires additional components and constructive measures, for

which the installer and operator of the plant is responsible.

In cases where a breakage or malfunction of the load cells would cause injury

to persons or damage to equipment, the user must take appropriate additional

safety measures that meet at least the requirements of applicable safety and

accident prevention regulations (e.g. automatic emergency shutdown, overload

protection, catch straps or chains, or other fall protection).

The electronic processor that processes the measurement signal should be

designed so that failure of the measurement signal cannot lead to secondary

failures.

General dangers of failing to follow the safety instructions

Load cells are state-of-the-art and reliable. Transducers can give rise to

residual dangers if they are mounted, installed, used and operated

inappropriately or by untrained personnel. Everyone involved with siting,

starting up, operating or repairing a load cell must have read and understood

the mounting instructions and in particular the technical safety instructions.

Load cells may be damaged or destroyed by improper use or non-compliance

with the mounting and operating manual, these safety instructions or any other

applicable safety regulations (safety and accident prevention regulations of

employers’ liability insurance associations) when handling the load cells. Load

cells can break, particularly if overloaded. The breakage of a load cell can also

cause damage to property or injury to persons in the vicinity of the load cell.

If load cells are not used according to their designated use, or if the safety

instructions or specifications in the mounting and operating manual are

ignored, it is also possible that the load cells may fail or malfunction, with the

result that persons or property may be affected (due to the loads acting on or

being monitored by the load cells).

Safety instructions

RTN A01153_03_Y00_01 HBM: public 5

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

area of weighing technology, as measurements with (resistive) strain gage

sensors presuppose the use of electronic signal conditioning. In addition,

equipment planners, installers and operators should plan, implement and

respond to the safety engineering considerations of the weighing technology in

such a way as to minimize residual dangers. Pertinent national and local

regulations must be complied with.

Conversions and modifications

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

without our express permission. Any modification shall exclude all liability on

our part for any damage resulting therefrom.

Resale

If the load cell is resold, these mounting instructions must be included with the

load cell.

Environmental protection, disposal

In accordance with national and local environmental protection, material

recovery and recycling regulations, old transducers that are no longer

serviceable must be disposed of separately from normal household waste.

If you require more information about disposal, please contact your local

authorities or the dealer from whom you purchased the product.

Safety instructions

6A01153_03_Y00_01 HBM: public RTN

Qualified personnel

Qualified personnel means persons entrusted with installing, mounting, starting

up and operating the product, who possess the appropriate qualifications for

their function.

This includes people who meet at least one of the three following criteria:

1. Knowledge of the safety concepts of automation technology is a require

ment and as project personnel, you must be familiar with these concepts.

2. As automation plant operating personnel, you have been instructed how to

handle the machinery. You are familiar with the operation of the equipment

and technologies described in this documentation.

3. As commissioning engineers or service engineers, you have successfully

completed the training to repair the automation systems. You are also

authorized to operate, ground and mark circuits and equipment in

accordance with safety engineering standards.

Markings used

RTN A01153_03_Y00_01 HBM: public 7

2 Markings used

2.1 Markings used in this document

Important instructions for your safety are highlighted. Following these

instructions is essential in order to prevent accidents and damage to property.

Symbol Meaning

Note This marking draws your attention to a situation in

which failure to comply with safety requirements

could lead to property damage.

Important

This marking draws your attention to important

information about the product or about handling the

product.

Information

This marking draws your attention to information

about the product or about handling the product.

Emphasis

See …

Italics are used to emphasize and highlight text and

identify references to sections of the manual,

diagrams, or external documents and files.

2.2 Symbols on the device

CE mark

With the CE mark, the manufacturer guarantees that the

product complies with the requirements of the relevant

EC directives (the Declaration of Conformity can be

found on the HBM website HBM (www.hbm.com) under

HBMdoc).

Statutory waste disposal marking

In accordance with national and local environmental

protection and material recovery and recycling

regulations, old devices that can no longer be used must

be disposed of separately and not with normal household

garbage. If you need more information about disposal,

please contact your local authorities or the dealer from

whom you purchased the product.

Application

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3 Application

RTN ring torsion load cells are available in different variants for a wide range of

maximum capacities (1 to 470 metric tons). They are suitable for weighing all

kinds of containers and for large platform scales. They have a stainless steel

body that lends them a high IP rating and makes them suitable for use in harsh

conditions. With their annular strain gage, RTN load cells considerably

minimize the influence of transverse and lateral loads. A legal-for-trade

weighing system up to 3,000 parts (as per OIML R60) is possible.

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