HBM C9C User manual
Mounting Instructions | Montageanleitung |
Notice de montage | Istruzioni per il montaggio
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C9C
Hottinger Baldwin Messtechnik GmbH
Im Tiefen See 45
D-64293 Darmstadt
Tel. +49 6151 803-0
Fax +49 6151 803-9100
www.hbm.com
Mat.: 7-0111.0009
DVS: A03729_03_YI0_01 HBM: public
07.2020
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.
Con riserva di modifica.
Tutti i dati descrivono i nostri prodotti in forma generica e non
implicano alcuna garanzia di qualità o di durata dei prodotti
stessi.
Mounting Instructions | Montageanleitung |
Notice de montage | Istruzioni per il montaggio
English Deutsch Français Italiano
C9C
2A03729_03_YI0_01 HBM: public C9C
English
1 Safety instructions 4........................................
2 Scope of supply, accessories and equipment variants 9.......
3 General application instructions 11...........................
4 Structure and mode of operation 12...........................
4.1 Transducer 12................................................
4.2 Strain gage covering agent 12..................................
4.3 Inline amplifier 12.............................................
5 Conditions on site 14........................................
5.1 Ambient temperature 14.......................................
5.2 Moisture and corrosion protection 14............................
5.3 Deposits 15..................................................
6 Mechanical installation 16....................................
6.1 Important precautions during installation 16......................
6.2 General installation guidelines 16...............................
7 Electrical connection 20......................................
7.1 Connection to measuring amplifier without permanently connected
amplifier module 20...........................................
7.1.1 General information and connection 20..........................
7.1.2 Cable extension and cable shortening 21.........................
7.1.3 EMC protection 21............................................
7.1.4 TEDS transducer identification 22...............................
7.2 Electrical connection of measuring amplifier with amplifier module 23
7.2.1 General information 23........................................
7.2.2 Connecting the device 23......................................
7.2.3 Operating the inline amplifier/zeroing the measurement chain 24....
Safety instructions
4A03729_03_YI0_01 HBM: public C9C
1 Safety instructions
Intended use
Force transducers in the C9C series are designed solely for measuring static
and dynamic compressive forces within the load limits stated in the
specifications. Any other use is not the intended use.
To ensure safe operation, it is essential to comply with the regulations in the
mounting instructions, the safety requirements listed below, and the data
specified in the supplied technical data sheets. It is also essential to observe
the applicable legal and safety regulations for the relevant application.
Force transducers are not intended for use as safety components. Please also
refer to the “Additional safety precautions” section. Proper and safe operation
of force transducers requires proper transportation, correct storage, setup and
mounting, and careful operation.
Load-carrying capacity limits
The information in the technical data sheets must be observed when using the
force transducers. The respective specified maximum loads in particular must
never be exceeded. The following limits set out in the technical data sheets
must not be exceeded:
SForce limits
SLateral limit forces (by oblique application, if necessary)
SExceeding the permissible eccentricity of force application
SBreaking forces
SPermissible dynamic loads
Stemperature limits
SElectrical load limits
Please note that when several force transducers are interconnected, the load/
force distribution is not always uniform.
Safety instructions
C9C A03729_03_YI0_01 HBM: public 5
Use as machine elements
Force transducers can be used as machine elements. When used in this
manner, note that to favor greater sensitivity, force transducers were not
designed with the safety factors usual in mechanical engineering. Please refer
to the “Load-carrying capacity limits” section and the specifications.
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.
Additional safety precautions
Force transducers cannot (as passive transducers or as a measurement chain)
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 precautions that meet at least the 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
Force transducers are state-of-the-art and failsafe. Transducers can give rise
to residual dangers if they are mounted, installed, used and operated
inappropriately or by untrained personnel. Every person involved with setting
up, 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 manual, these safety instructions or other applicable safety
regulations (safety and accident prevention regulations of the Employers'
Safety instructions
6A03729_03_YI0_01 HBM: public C9C
Liability Insurance Association) when using the force transducers. A force
transducer can break, particularly if it is overloaded. The breakage of a force
transducer can cause damage to property or injury to persons in the vicinity of
the force transducer.
If force transducers are not used as intended, or if the safety instructions or
specifications in the mounting and operating instructions are ignored, it is also
possible that a force transducer may fail or malfunction, with the result that
persons may be injured or property damaged (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 sensors require electronic amplification, and measurement chains require
further signal processing. Equipment planners, installers and operators should
always plan, implement and respond to the safety engineering considerations
of force measurement technology in such a way as to minimize residual
dangers. Pertinent national and local regulations must be complied with.
The markings used in this document
Symbol Meaning
WARNING This marking warns of a potentially dangerous
situation in which failure to comply with safety
requirements could result in death or serious physical
injury.
CAUTION This marking warns of a potentially dangerous
situation in which failure to comply with safety
requirements could result in slight or moderate
physical injury.
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.
Safety instructions
C9C A03729_03_YI0_01 HBM: public 7
MeaningSymbol
Tip
This marking indicates tips for use or other
information that is useful to you.
Emphasis
See …
Italics are used to emphasize and highlight text and
identify references to sections of the manual,
diagrams, or external documents and files.
Conversions and modifications
The design or safety engineering of the transducer must not be modified with
out our express permission. Any modification shall exclude all liability on our
part for any damage resulting therefrom.
Maintenance
The force transducers of the C9C series are maintenance free
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 garbage.
If you require more information about disposal, please contact your local
authorities or the dealer from whom you purchased the product.
Qualified personnel
Qualified personnel means persons entrusted with installing, mounting, starting
up and operating the product who possess the appropriate qualifications for
their work.
This includes people who meet at least one of these three requirements:
SAs project personnel, you know and are familiar with the safety concepts of
automation technology.
SAs 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.
Safety instructions
8A03729_03_YI0_01 HBM: public C9C
SAs a commissioning or service engineer, you have successfully completed
training on the repair of automation plants. Moreover, you are authorized to
start up, ground and label circuits and equipment in accordance with safety
engineering standards.
During use, compliance with the legal and safety requirements for the relevant
application is also essential. The same applies to the use of accessories.
The force transducer may only be installed by qualified personnel, strictly in
accordance with the specifications and with the safety requirements and
regulations.
Scope of supply, accessories and equipment variants
C9C A03729_03_YI0_01 HBM: public 9
2 Scope of supply, accessories and equipment
variants
Scope of supply
SC9C force transducer
SC9C mounting instructions
STest report
Accessories
Description Ordering
number
KAB168-5, PUR connection cable with M12 8-pin socket, 5 m
long, free ends on opposite side. For connecting the amplifier
module to the downstream electronics
1-KAB168-5
KAB168-20, PUR connection cable with M12 8-pin socket, 20 m
long, free ends on opposite side. For connecting the amplifier
module to the downstream electronics
1-KAB168-20
Thrust piece EDO9/20kN; suitable for nominal (rated) forces from
0.5 kN … 20 kN
1-EDO9/20kN
Thrust piece EDO9/50kN; suitable for nominal (rated) force 50 kN 1-EDO9/50kN
Equipment variants
All force transducers are available in different versions. The following options
are available:
1. Cable
The C9C is equipped with a cable 1.5 m long in the standard version. You
can also order the force transducer with the following cable lengths:
-3m
-5m
-6m
-7m
- 12 m
Scope of supply, accessories and equipment variants
10 A03729_03_YI0_01 HBM: public C9C
2. Device plug/electrical connection
We can fit one of the following plugs to the C9C on request:
- D-SUB connector, 15-pin: A 15-pin plug for connection to numerous
amplifier systems, e.g. MGCplus, Scout, MP85, etc.
- D-SUB HD connector: A 15-pin plug for connection to appropriate
amplifier systems, e.g. the HBM QuantumX system
- 3106 PEMV connector (Greenline): For connection to appropriate
amplifier systems, e.g. MGCplus with AP03.
- Free ends: Transducer delivered without plugs.
- The force transducer can be ordered with a permanently connected
amplifier electronics module which converts the output signal of the force
transducer into a 0 ... 10 V signal. This option is only available with 1.5 m
and 3 m cable lengths.
- The force transducer can also be ordered with a permanently connected
amplifier electronics module which converts the output signal of the force
transducer into a 4…20mA signal. This option is only available with
1.5 m and 3 m cable lengths.
3. TEDS
You can order the force transducer with transducer identification ("TEDS").
TEDS (Transducer Electronic Data Sheet) allows you to store the trans
ducer data (characteristic values) in a chip that can be read out by a
connected measuring device (with an appropriate amplifier). HBM records
the TEDS data before delivery so that no parameterization of the amplifier
is necessary.
TEDS can only be fitted in the plug of the C9C, therefore it is not possible to
equip the "free cable ends" version with TEDS. The versions with
permanently connected amplifier electronics cannot be connected with the
TEDS option.
General application instructions
C9C A03729_03_YI0_01 HBM: public 11
3 General application instructions
Force transducers are suitable for measuring compressive forces. They
provide highly accurate static and dynamic force measurements and must
therefore be handled very carefully. Particular care must be taken during
transportation and installation. Dropping and knocking the transducer may
cause permanent damage.
C9C series force transducers have a convex force application part, to which
the forces to be measured must be applied.
The Specifications section 9 on page 29 lists the permissible limits for
mechanical, thermal and electrical loading It is essential to observe these limits
when planning the measuring set-up, during installation and, ultimately, during
operation.
Structure and mode of operation
12 A03729_03_YI0_01 HBM: public C9C
4 Structure and mode of operation
4.1 Transducer
The measuring body is a steel loaded member on which strain gages (SG) are
installed. The influence of a force deforms the measuring body, so there is
deformation in places where the strain gages are installed. The SG are
attached so that two are stretched and two are compressed when a force is
applied. The strain gages are wired to form a Wheatstone bridge circuit. They
change their ohmic resistance in proportion to their change in length and so
unbalance the Wheatstone bridge. If there is an excitation voltage, the circuit
produces an output signal proportional to the change in resistance and thus
also proportional to the applied force. The strain gage arrangement is chosen
to compensate, as much as possible, for parasitic forces and moments (e.g.
lateral forces and eccentricity influences), as well as the effects of temperature.
4.2 Strain gage covering agent
To protect the SG, the force transducers have thin cover plates that are welded
on the bottom and, in versions with a nominal (rated) force of up to 200N, on
the top.This method offers very good protection against environmental
influences so that the C9C achieves protection class IP67. In order to retain
the protective effect, these plates must not be removed or damaged in any
way.
4.3 Inline amplifier
The sensors can optionally be ordered with an inline amplifier. This amplifier
module supplies the bridge circuit of the sensors with a suitable supply voltage,
and converts the small output signal of the force transducers with low noise
into a 0 ... 10 V voltage signal (VA1) or a 4 ... 20 mA current signal (VA2). The
delivery is then carried out as a measurement chain, and the test record
describes the correlation between the force input quantity and the output signal
in V or mA.
Structure and mode of operation
C9C A03729_03_YI0_01 HBM: public 13
Fig. 4.1 The underside of the transducer is fitted with a thin metal plate to protect the
strain gages
In versions with nominal (rated) forces up to 200 N, there is also a metal plate
on the top of the transducer, that also needs to be handled with care.
Conditions on site
14 A03729_03_YI0_01 HBM: public C9C
5 Conditions on site
C9C series force transducers are made of rustless materials. It is nevertheless
important to protect the transducers from weather conditions such as rain,
snow, ice and salt water.
5.1 Ambient temperature
The effects of temperature on the zero signal and on sensitivity are
compensated.
To obtain optimum measurement results, comply with the nominal (rated)
temperature range. The compensation of the temperature effect on the zero
point is implemented with great care, but temperature gradients can still have a
negative effect on the stability of zero. Constant or very slowly changing
temperatures are therefore best. A radiation shield and all-round thermal
insulation produce noticeable improvements. However, they must not be
allowed to set up a force shunt, i.e. slight movement of the force transducer
must not be prevented.
5.2 Moisture and corrosion protection
The force transducers are hermetically encapsulated and are therefore very
insensitive to moisture. The transducers achieve protection class IP67.
Despite the careful encapsulation, it makes sense to protect the transducers
against permanent exposure to moisture.
The force transducer must be protected against chemicals that could attack the
steel.
With stainless steel force transducers, note that acids and all materials which
release ions will in general also attack stainless steels and their welded seams.
Should there be any corrosion, this could cause the force transducer to fail. In
this case, appropriate protective measures must be provided.
The housing of the inline amplifiers is made of aluminum and, like the sensor,
meets the requirements of IP67 protection. We recommend protecting the
amplifier housing from sustained weather effects.
Conditions on site
C9C A03729_03_YI0_01 HBM: public 15
5.3 Deposits
Dust, dirt and other foreign matter must not be allowed to accumulate
sufficiently to divert some of the measuring force around the force transducer,
thus invalidating the measured value. (Force shunt). The relevant areas are
marked in Fig. 5.1.
Fig. 5.1 Deposits must not be allowed to form on the finely hatched area, as this
could cause a force shunt.
Mechanical installation
16 A03729_03_YI0_01 HBM: public C9C
6 Mechanical installation
6.1 Important precautions during installation
SHandle the transducer with care.
SComply with the requirements for the force application parts, as specified in
section 6.2.
SWelding currents must not be allowed to flow over the transducer. If there is
a risk that this might happen, you must use a suitable low-ohm connection
to electrically bypass the transducer. HBM offers the highly flexible EEK
ground cable in various lengths for this purpose, which can be screwed on
above and below the transducer.
SMake sure that the transducer is not overloaded.
WARNING
There is a danger of the transducer breaking if it is overloaded. This can cause
danger for the operating personnel of the system in which the transducer is
installed, as well as for people in the vicinity.
Implement appropriate safety measures to avoid overloads (also see the
Specifications section 9 on page 29) or to protect against resulting dangers.
6.2 General installation guidelines
The forces to be measured must act on the transducer as accurately as
possible in the direction of measurement. Bending moments resulting from
lateral force, eccentric loading and the lateral forces themselves, may produce
measurement errors and destroy the transducer, if limit values are exceeded.
Mechanical installation
C9C A03729_03_YI0_01 HBM: public 17
Fnom Force in direction of measurement
Fex Force in direction of measurement, out
side the center of the force transducer
e Eccentricity (center of force transducer -
force application distance)
Fnom Fex
Fq
e
Fig. 6.1 Parasitic forces and moments
Notice
When installing and operating the transducer, please note the maximum
parasitic forces - lateral forces (due to oblique application), bending moments
(due to eccentric force application) and torques, see the Specifications section
9 on page 29, and the maximum permissible loading capacity of the force
application parts used (possibly provided by the customer).
Load is applied via the spherical load button on top of the force transducer.
The structural component that applies the force to the convex load application
part must be ground and have a hardness of at least 40 HRC.
HBM provides EDO9 thrust pieces for the C9C, which are used to keep
torques and bending moments away from the transducer. The thrust pieces
naturally have the correct hardness and surface quality.
Mechanical installation
18 A03729_03_YI0_01 HBM: public C9C
Fig. 6.2 Using the EDO9 thrust piece
The substructure must be capable of absorbing the force to be measured.
Remember that the rigidity of the overall system depends on the stiffness of
the force application part and the substructure. Please also note that the sub
structure must ensure that force is always applied to the transducer vertically,
i.e. there must be no inclination, even under full load.
There are threaded holes underneath the adapter, by means of which the C9C
can also be mounted upside down or vertically.
Nominal (rated) force Thread
50N…200N 3 x M3
0.5…20kN 3 x M2
50kN 4 x M4
Please note the construction heights of the C9C
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