HBM C18 Manual de usuario

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Force transducer

C18

Mounting Instructions

A0886-4.1_en/de

C18

2 A0886-4.1_en/de

English

1 Safety Instructions 3........................................

2 Scope of supply 9..........................................

3 Application instructions 9...................................

4 Structure and mode of operation 11...........................

4.1 Measuring body 11............................................

4.2 Mounting base and thrust piece 11..............................

4.3 Disturbance variables and compensation 11......................

5 Conditions on site 12........................................

5.1 Ambient temperature 12.......................................

5.2 Moisture and humidity 12......................................

5.3 Air pressure 12...............................................

6 Mechanical installation 13....................................

6.1 Important precautions during installation 13......................

6.2 General installation guidelines 14...............................

6.3 Force transducer installation 14.................................

7 Electrical connection 16......................................

7.1 Notes on cabling 16...........................................

7.2 Assignment of cable wires 18...................................

8 Specifications 19............................................

9 Dimensions 21..............................................

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1 Safety Instructions

Designated use

The force transducers in the C18 type series are solely

designed for measuring (static and dynamic) tensile and

dynamic compressive forces within the load limits

specified by the technical data for the respective

maximum capacities. Any other use is not the designated

use.

To ensure safe operation, the regulations in the mounting

and operating instructions, together with the following

safety requirements, and the data specified in the

technical data sheets, must be complied with. It is also

essential to observe the applicable legal and safety

regulations for the application concerned.

The force transducers are not intended for use as safety

components. Please also refer to the section: “Additional

safety precautions”. Proper and safe operation of the

force transducer requires proper transportation, correct

storage, siting and mounting, and careful operation.

Operating personnel

Mounting and operation of the force transducer must only

be carried out by fully qualified personnel. Qualified

personnel in this respect means persons entrusted with

siting, mounting, starting up and operating the product,

who are familiar with the operation of the force transducer

and possess the appropriate qualifications for their

function.

Loading capacity limits

The data in the technical data sheet must be complied

with when using the force transducer. In particular, the

respective maximum loads specified must never be

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exceeded. The following limits set out in the technical

data sheets must not be exceeded

SLimit loads

SLateral load limits

SBreaking loads

SPermissible dynamic loads

STemperature limits

SLimits of electrical loading capacity

Please note that when several force transducers are

interconnected, the load/force distribution is not always

uniform.

Use as a machine element

The force transducers can be used as machine elements.

When used in this manner, it must be noted that, to favor

greater sensitivity, the force transducer cannot be

designed with the safety factors usual in mechanical

engineering. Please refer here to the section “Loading

capacity limits”, and to the specifications.

Additional safety precautions

The force transducers 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 force

transducer 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

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A0886-4.1_en/de 5

(e.g. automatic emergency shutdown, overload

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

The layout of the electronics conditioning the

measurement signal should be such that measurement

signal failure does not cause damage.

General dangers of failing to follow the safety

instructions

The force transducers are state‐of‐the‐art and reliable.

Transducers can give rise to residual dangers if they are

incorrectly operated or inappropriately mounted, installed

and operated by untrained personnel. Every person

involved with siting, starting‐up, operating or repairing a

force transducer must have read and understood the

mounting instructions and in particular the technical

safety instructions. The force transducers can be

damaged or destroyed by non‐designated use of the

force transducer or by non‐compliance with the mounting

and operating instructions, these safety instructions or

any other applicable safety regulations (BG safety and

accident prevention regulations) when using the force

transducers. Force transducers can break, particularly in

the case of overloading. The breakage of a force

transducer can also cause damage to property or injury

to persons in the vicinity of the force transducer.

If force transducers are not used according to their

designated use, or if the safety instructions or

specifications in the mounting and operating instructions

are ignored, it is also possible that the force transducer

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 force transducer).

The scope of supply and performance of the transducer

covers only a small area of force measurement

technology, as measurements with (resistive) strain gage

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sensors presuppose the use of electronic signal

processing. In addition, equipment planners, installers

and operators should plan, implement and respond to the

safety engineering considerations of force measurement

technology in such a way as to minimize residual

dangers. On‐site regulations must be complied with at all

times.

Warns of a potentially dangerous situation in which failure

to comply with safety requirements could result in death

or serious physical injury.

WARNING

Description of a potentially dangerous situation

Measures to avoid/prevent the danger

The marking below draws your attention to a potentially

dangerous situation in which failure to comply with safety

requirements could result in slight or moderate physical

injury.

CAUTION

Description of a potentially dangerous situation

Measures to avoid/prevent the danger

The marking below draws your attention to a situation in

which failure to comply with safety requirements could

lead to damage to property.

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Note

Description of a situation that could lead to damage to

property

Disposal

In accordance with national and local environmental

protection and material recovery and recycling

regulations, old transducers that can no longer be used

must be disposed of separately and not with normal

household waste.

If you need more information about waste disposal,

please contact your local authorities or the dealer from

whom you purchased the product.

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 exclude all liability on

our part for any damage resulting therefrom.

Qualified personnel

Qualified personnel means persons entrusted with siting,

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 requirements:

1. Knowledge of the safety concepts of automation

technology is a requirement and as project personnel,

you must be familiar with these concepts

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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 qualify

you to repair the automation systems. You are also

authorized to activate, ground and label circuits and

equipment in accordance with safety engineering

standards.

It is also essential to comply with the legal and safety

requirements for the application concerned during use.

The same applies to the use of accessories.

The force transducer must only be installed by qualified

personnel, strictly in accordance with the specifications

and with the safety requirements and regulations listed

below.

Maintenance

The C18 force transducer is maintenance‐free.

Accident prevention

The prevailing accident prevention regulations must be

taken into account, even though the nominal (rated) force

values in the destructive range are well in excess of the

full scale value.

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A0886-4.1_en/de 9

2 Scope of supply

SC18 measuring body

SThrust piece

SMounting base

SMounting instructions

SManufacturing certificate

Accessories (not included among the items supplied)

SDKD calibration certificate to EN10002-3, ISO376,

order no. K-CAL-FD...

3 Application instructions

Force transducers of the C18 type series are suitable for

measuring compressive forces. Because they provide

highly accurate static and dynamic force measurements,

they must be handled very carefully. Particular care must

be taken when transporting and installing the devices.

Dropping or knocking the transducers may cause

permanent damage.

The transducer must always be installed with a

mounting base and a thrust piece, otherwise

measurements errors will result.

Both in conjunction with DC amplifiers and

carrier‐frequency amplifiers, force transducers can be

used at a maximum carrier frequency of 600 Hz.

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C18 force transducers with a DKD certificate from

HBM

An additional force calibration to EN 10002-3 and

ISO376, guarantees a Class 0.5 rating for the transducer.

To achieve optimum accuracy for a DKD calibration, it is

advisable to calibrate the entire measuring chain. This

comprises the transducer and amplifier being used.

Section 8 on page 7 lists the permissible limits for

mechanical, thermal and electrical stress. It is essential

that these are taken into account when planning the

measuring set‐up, during installation and, ultimately,

during operation.

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