HBM C16A Series User manual

Operating Manual | Bedienungsanleitung |
Manuel d'emploi
English Deutsch Français
C16A

Hottinger Baldwin Messtechnik GmbH
Im Tiefen See 45
D-64239 Darmstadt
Tel. [phone]
Fax [phone]
[email protected]
www.hbm.com
Mat.: 7-2002.5000
DVS: A1460-4.0 HBM: public
03.2017
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 durabilité.

Operating Manual | Bedienungsanleitung |
Manuel d'emploi
English Deutsch Français
C16A

2A1460-4.0 HBM: public C16A
English
1 Safety instructions 4........................................
2 Markings used 8............................................
2.1 Symbols on the device 8......................................
2.2 The marking used in this document 8...........................
3 Scope of delivery 9.........................................
3.1 Thrust piece mounting accessories (to be ordered separately) 9....
3.2 Ground cable mounting accessories (to be ordered separately) 10...
4 Function 11.................................................
5 Conditions on site 12........................................
6 Mechanical installation 13....................................
6.1 Important precautions during installation 13......................
6.2 Preparation for installation 14...................................
6.3 Assembly sequence 15........................................
6.4 Procedure for special installation situations 18....................
7 Electrical connection 21......................................
7.1 Connection in six-wire configuration 22..........................
7.2 Shortening the cable 22.......................................
7.3 Cable extension 23...........................................
7.4 Parallel connection 23.........................................
7.5 EMC protection 24............................................
8 Maintenance and Cleaning 25................................
9 Waste disposal and environmental protection 26..............
10 Specifications 27............................................
10.1 C16A D1 27..................................................
10.2 C16A C3 30..................................................

C16A A1460-4.0 HBM: public 3
10.3 Options for C16A 32..........................................
11 Dimensions 33..............................................
11.1 Dimensions and mounting parts for maximum capacity 20t to 60t 33.
11.2 Dimensions and mounting parts for maximum capacity 100t to 400t 36
11.3 Dimensions of load cells with EExd design 38....................

Safety instructions
4A1460-4.0 HBM: public C16A
1 Safety instructions
Appropriate use
Transducers of the C16A type series are designed solely
for technical weighing applications within the application
limits detailed in the specifications. Any other use is not
appropriate.
Any person instructed to carry out installation, commis
sioning or operation of the transducer must have read
and understood the Operating Manual and in particular
the technical safety instructions.
In the interests of safety, the transducer should only be
operated by qualified personnel and as described in the
Operating Manual. It is also essential to comply with the
legal and safety requirements for the application con
cerned during use. The same applies to the use of ac
cessories.
The transducer is not intended for use as a safety com
ponent. Please also refer to the section: "Additional
safety precautions". Proper and safe operation requires
proper transportation, correct storage, siting and mount
ing, and careful operation.
Operating conditions
SPlease observe the permissible maximum values
stated in the specifications for:
- Limit load
- Limit load at max. eccentricity
- Limit lateral loading
- Breaking loads
- Temperature limits
- Limits of electrical loading capacity

Safety instructions
C16A A1460-4.0 HBM: public 5
SNote, that when several transducers are installed in a
scale, there is not always an even distribution of load
on the individual transducers.
SThe transducers can be used as machine elements.
When used in this manner, it must be noted that, to
favor greater sensitivity, the transducer is not de
signed with the safety factors usual in mechanical en
gineering.
SThe transducer must not be modified from the design
or safety engineering point of view except with our
express agreement.
SThe transducer is maintenance-free.
SIn accordance with national and local environmental
protection and material recovery and recycling regula
tions, old transducers that can no longer be used
must be disposed of separately and not with normal
household garbage, see Chapter 9, Page 26.
Explosion protection version option
The following also apply to the transducers, supplied with
this option, that are to be used in potentially explosive
atmospheres:
SIt is essential to comply with the legal code of practice
during installation.
SThere must be compliance with the installation condi
tions cited in the Certificate of Conformity and/or the
Type Examination Certificate.
SThe ambient temperature range specified on the
transducer must not be exceeded.

Safety instructions
6A1460-4.0 HBM: public C16A
Qualified Personnel
Qualified persons means persons entrusted with the in
stallation, fitting, commissioning and operation of the
product who possess the appropriate qualifications for
their function.
This includes people who meet at least one of the three
following requirements:
SKnowledge of the safety concepts of measurement
and automation technology is a requirement and as
project personnel, they must be familiar with these
concepts.
SAs measurement or automation plant operating per
sonnel, they have been instructed how to handle the
machinery. They are familiar with the operation of the
equipment and technologies described in this docu
mentation.
SAs commissioning engineers or service engineers,
they have successfully completed the training to qual
ify them to repair the automation systems. They are
also authorized to activate, ground and label circuits
and equipment in accordance with safety engineering
standards.
Additional safety precautions
Additional safety precautions to meet the requirements of
the relevant national and local accident prevention regu
lations must be taken in plants where malfunctions could
cause major damage, loss of data or even personal in
jury.
The scope of supply and performance of the transducer
covers only a small area of measurement technology.
Before starting up the transducer in a system, a project
planning and risk analysis must first be implemented,

Safety instructions
C16A A1460-4.0 HBM: public 7
taking into account all the safety aspects of measure
ment and automation technology so that residual risks
are minimized. This particularly concerns personal and
machine protection. The transducers function passively
and cannot implement any (safety-relevant) cutoffs. In
the event of a fault, the relevant precautions must estab
lish safe operating conditions.
General dangers of failing to follow the safety
instructions
The transducer corresponds to the state of the art and is
failsafe. The transducer may give rise to residual dangers
if it is inappropriately installed or operated.

Markings used
8A1460-4.0 HBM: public C16A
2 Markings used
2.1 Symbols on the device
CE certification
The CE mark enables the manufacturer to guarantee that
the product complies with the requirements of the relev
ant EC directives (the Declaration of Conformity can be
found on the HBM website (www.hbm.com) under HBM
doc).
2.2 The marking used in this document
Important instructions for your safety are specifically
identified. It is essential to follow these instructions in or
der to prevent accidents and damage to property.
Symbol Significance
WARNING This marking warns of a potentially dangerous situ
ation in which failure to comply with safety require
ments can result in death or serious physical injury.
Note This marking draws your attention to a situation in
which failure to comply with safety requirements
could lead to damage to property.
Important
This marking draws your attention to important in
formation about the product or about handling the
product.
Tip
This marking indicates application tips or other in
formation that is useful to you.
Emphasis
See …
Italics are used to emphasize and highlight text and
identify references to sections, diagrams, or external
documents and files.

Scope of delivery
C16A A1460-4.0 HBM: public 9
3 Scope of delivery
SPendulum load cell with connection cable, including
sealing sleeve and hose clamp for maximum capacit
ies of 20 to 60t
SDowel pin as rotation stop (load application parts in
separate order)
SBag with lubrication grease
SAssembly instructions
3.1 Thrust piece mounting accessories
(to be ordered separately)
Maximum capacities 20 t 060 t - Built-in variant 1:
SC16/ZOU44A
Thrust pieces (stainless) for top and bottom (1 set = 2
pieces), can be used with C16 ≤60 t up to a max. load
per load cell of 40 t, incl. 3 eccentric discs.
Maximum capacities 20 t 060 t - Built-in variant 2:
SEPO3/50t
Thrust piece for top, incl. clamping ring.
SC16/EPU44A
Thrust piece for bottom, incl. 3 eccentric discs.
Maximum capacities 100 t and 200t:
SEPO3/100t
Thrust piece for top, incl. clamping ring.

Scope of delivery
10 A1460-4.0 HBM: public C16A
SC16/EPU64
Thrust piece for bottom, incl. 3 eccentric discs.
Maximum capacities 400 t:
SEPO3/400t
Thrust piece for top, incl. clamping ring.
SC16/EPU109
Thrust piece for bottom, incl. 3 eccentric discs.
3.2 Ground cable mounting accessories
(to be ordered separately)
Maximum capacities 20 t 060 t:
SEEK4
Maximum capacities 100 t and 400t:
SEEK6

Function
C16A A1460-4.0 HBM: public 11
4 Function
The C16A is a self-centering pendulum load cell which
returns the superstructure to its stable original position
after the load application is displaced laterally, i.e. in
clined. The maximum permissible lateral displacement or
inclination (see Chapter 11, Page 33) must not be ex
ceeded as otherwise the load cells or load application
elements may be damaged. The simplest and most usual
solution here is to set up appropriate stops on the super
structure (scale platform) that must be carefully set within
the values specified for the applicable maximum capa
city.
We recommend EPO3 and C16/EPU or C16/ZOU44A
from HBM as mounting parts for the C16A, so that prob
lem-free installation is possible. The rotation stops wel
ded onto the load cell and the supplied dowel pin are also
specifically matched for this purpose (see Dimensions in
Chapter 11, Page 33).

Conditions on site
12 A1460-4.0 HBM: public C16A
5 Conditions on site
Series C16A transducers are hermetically encapsulated
and are therefore very insensitive to the influence of
moisture and humidity. The transducers achieve protec
tion class IP68 (test conditions: 1,000 hours under 2 m
water column) and IP69K (water at high pressure, steam
cleaner), as per DIN EN60529.
Protection against corrosion
The transducer must be protected against chemicals that
could attack the transducer body steel or the cable.
Notice
Acids and all substances that release ions also attack
stainless steels and their welded seams.
Should there be any corrosion, this could cause the
transducer to fail. If this is the case, you must provide
appropriate means of protection.
Explosion protection version option
The ambient temperature range specified on the trans
ducer must not be exceeded.

Mechanical installation
C16A A1460-4.0 HBM: public 13
6 Mechanical installation
6.1 Important precautions during
installation
SHandle the transducer with care.
SUse suitable lifting equipment for installation.
SUse support bodies (dummies) identical in height dur
ing alignment if necessary.
SWelding currents must not be allowed to flow over the
transducer. If there is a risk that this might happen,
you must provide a suitable low-ohm connection to
electrically bypass the transducer. HBM, for example,
provides the highly flexible EEK ground cable, which
can be screwed on above and below the transducer.
SMake sure that the transducer cannot be overloaded.
SThe optional outer braided wire cable covering for
some C16A (e.g. with item numbers
1-C16A3C3/30t/L2R, 1-C16A2C3/40t/L2R or for the
configurable C16A with option 20R), is designed for
use when there is increased mechanical stress (e.g.
caused by gnawing rodents). If this cable is used, the
outer braided wire has to be connected to potential
equalization at least once, to avoid accidental ener
gization. This outer braided wire is not used to shield
the load cell. The inner braid of the load cell cable is
used for shielding (also refer to 7.5 EMC protection).

Mechanical installation
14 A1460-4.0 HBM: public C16A
WARNING
There is a danger of the transducer breaking if it is over
loaded. This can cause danger for the operating person
nel of the system in which the transducer is installed.
Implement appropriate safety measures to avoid over
loads or to protect against the resulting dangers.
Notice
Load cells are precision measuring elements and need to
be handled carefully. Dropping or knocking the trans
ducer may cause permanent damage. Make sure that the
transducer cannot be overloaded, including while it is be
ing mounted.
6.2 Preparation for installation
If you are using the thrust pieces EPO3, C16/EPU or
C16/ZOU44A, you must carry out the preparations de
scribed below.
Each load cell is packed with a dowel pin which, in com
bination with the rotation stop welded onto the load cell,
prevents any possible micro-rotation of the transducer
and therefore possible cable damage.
Only one thrust piece must be fitted with this pin per load
cell. Mount the thrust piece below the load cell as the
dowel pin can then engage in the rotation stop recess
that is present (see Dimensions in Chapter 11, Page 33).
The hole on the top thrust piece remains empty.

Mechanical installation
C16A A1460-4.0 HBM: public 15
► Knock the dowel pin with a hammer into the blind hole
of the thrust piece until the pin is seated. Position the
open side of the dowel pin radially (Fig. 6.1).
or
Fig. 6.1 Position of dowel pin relative to rotation stop
The correct seat of the pin is ensured by the depth of the
hole.
The footprint or foundation under the bottom thrust piece
(load transfer) and above the top thrust piece must be as
smooth and level as possible. The thrust pieces can be
positioned or screwed directly onto concrete, if the sur
face quality is appropriate, so that no further panels need
to be provided.
► Produce the necessary holes required for fastening or
attachment to the platform and foundation before as
sembly. The dimensions, depending on the thrust
piece, can be found in the dimension drawings in
Chapter 11, Page 33.
6.3 Assembly sequence
Mechanical assembly will be described below using a
platform weighing machine as an example. We recom
mend carrying out assembly in this sequence.

Mechanical installation
16 A1460-4.0 HBM: public C16A
► Raise one face of the platform weighing machine,
which is already aligned centrally, using suitable lifting
equipment.
► Mount the prepared load application parts with the
rotation stop with dowel pin facing downwards and the
one without a dowel pin facing upwards, see Chapter
6.2.
► Orientate the bottom thrust piece so that the dowel
pin faces in the direction that the cable output and
type plate should also face. Do not as yet
permanently fix the bottom thrust piece in place.
► To protect against wear, contamination and corrosion,
generously grease the upper and lower load
application elements in the loading point and the
dowel pin and rotation stop on the load cell using the
supplied grease (Fig. 6.2).
Grease these points
Fig. 6.2 Points to be greased

Mechanical installation
C16A A1460-4.0 HBM: public 17
► If using C16/EPU or C16/ZOU44A, fix the bottom
thrust pieces using the eccentric discs.
► Place the hose clamp, included with the load cell,
around the bottom thrust piece for the subsequent
sealing of the sealing sleeve.
► Insert the load cell into the bottom thrust piece with a
rotating movement so that the dowel pin on the thrust
piece engages in the recess of the rotation stop.
► Carefully lower the platform weighing machine back
down. Then insert the upper load application elements
of the load cell in to the loading point of the top thrust
piece so that the load cells are just not under load and
can still be aligned vertically.
Important
The load cells must be aligned vertically, otherwise
restoring cannot work correctly and generate incorrect
measurements.
To do this, adjust the bottom thrust piece with the
eccentric discs loosened. You can most easily check
the vertical installation position of the load cell by
positioning a suitable prism spirit level on the
cylindrical enclosure pipe.
► Lower the platform and then perform the same steps
on the other face.
► After installation is complete, check the vertical
installation position of all load cells with the platform
floating freely. If corrections are necessary, perform
them after raising the platform again.

Mechanical installation
18 A1460-4.0 HBM: public C16A
► Once all load cells are vertically aligned, rotate the
eccentric discs against the thrust piece and fix them in
place by tightening the fastening screws.
► Fold the sealing sleeve already mounted on the load
cell down over the thrust piece and fasten it directly
onto the thrust piece with the hose clamp.
Please note that the guarantee only applies if the
sealing sleeve is correctly mounted and the thrust
pieces are greased.
6.4 Procedure for special installation
situations
If the load cell support spacings are very wide or the plat
form weighing machines have a high deflection, it may be
possible that measurement deviations occur due to the
rolling movements of the load cells caused by the load.
This rolling movement is supported by the lateral dis
placement of the upper load application points of the load
cells under a load, if the contact zone between thrust
piece and load cell lies well below the bending-neutral
fiber of the platform weighing machine. In order to minim
ize the resulting deviations in this case, you can install
the load cells with a slight inclination of up to 1°facing
inwards (Fig. 6.3).