HBM C18 Manuale utente
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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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(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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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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