HBM RTN Manuel utilisateur
Mounting Instructions | Montageanleitung |
Notice de montage
English Deutsch Français
RTN
Hottinger Baldwin Messtechnik GmbH
Im Tiefen See 45
D-64239 Darmstadt
Tel. +49 6151 803-0
Fax +49 6151 803-9100
www.hbm.com
Mat.: 7-2001.3106
DVS: A1153-2.0 HBM: public
08.2017
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 durablilité.
Mounting Instructions | Montageanleitung |
Notice de montage
English Deutsch Français
RTN
2A1153-2.0 HBM: public RTN
English
1 Safety instruction 3.........................................
2 Markings used 6............................................
2.1 Symbols on the product 6.....................................
2.2 The markings used in this document 6..........................
3 Mounting 7.................................................
4 Connection 10...............................................
4.1 Connecting in parallel of several Load cells 12....................
5 Technical Data 13............................................
6 Dimensions Load cell RTN... 16..............................
7 Accessory Pendulum mounts VPN 18.........................
8 Accessory Elastomer mounts VEN 20.........................
Safety instruction
RTN A1153-2.0 HBM: public 3
1 Safety instruction
In cases where a breakage would cause injury to persons
or damage to equipment, the user must take appropriate
safety measures (such as fall protection, overload protec
tion, etc.). For safe and trouble-free operation, the load
cell must not only be correctly transported, stored, sited
and installed but must also be carefully operated and
maintained.
It is essential to comply with the relevant accident pre
vention regulations. In particular you should take into ac
count the limit loads quoted in the specifications.
Use in accordance with the regulations
RTN... type load cell is conceived for weighing applica
tions. Use for any additional purpose shall be deemed to
be not in accordance with the regulations.
In the interests of safety, the load cell should only be op
erated as described in the Mounting Instructions. It is
also essential to observe the appropriate legal and safety
regulations for the application concerned during use. The
same applies to the use of accessories.
The load cell is not safety element within the meaning of
its use as intended. Proper and safe operation of this
load cell requires proper transportation, correct storage,
assembly and mounting and careful operation and main
tenance.
General dangers due to non‐observance of the
safety instructions
The RTN... load cell correspond to the state of the art
and are fail‐safe. The load cell can give rise to residual
dangers if it is inappropriately installed and operated by
untrained personnel.
Safety instruction
4A1153-2.0 HBM: public RTN
Everyone involved with the installation, commissioning,
maintenance or repair of a force transducer must have
read and understood the Mounting Instructions and in
particular the technical safety instructions.
Residual dangers
The scope of supply and performance of the load cells
covers only a small area of weighing technology. In addi
tion, equipment planners, installers and operators should
plan, implement and respond to the safety engineering
considerations of weighing technology in such a way as
to minimize residual dangers. Prevailing regulations must
be complied with at all times. There must be reference to
the residual dangers connected with weighing technol
ogy.
Environmental conditions
In the context of your application, please note that all ma
terials which release chlorine ions will attack all grades of
stainless steel and their welding seams. In such cases
the operator must take appropriate safety measures.
Prohibition of own conversions and modifications
The load cell 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
This load cell is only to be installed by qualified personnel
strictly in accordance with the technical data and with the
safety rules and regulations which follow. It is also essen
tial to observe the appropriate legal and safety regula
Safety instruction
RTN A1153-2.0 HBM: public 5
tions for the application concerned. The same applies to
the use of accessories.
Qualified personnel means persons entrusted with the
installation, fitting, commissioning and operation of the
product who possess the appropriate qualifications for
their function.
Accident prevention
Although the specified nominal capacity in the destructive
range is several times the full scale value, the relevant
accident prevention regulations from the trade associa
tions must be taken into consideration.
Markings used
6A1153-2.0 HBM: public RTN
2 Markings used
2.1 Symbols on the product
CE mark
The CE mark enables the manufacturer to guarantee that
the product complies with the requirements of the rele
vant EC directives (the declaration of conformity is avail
able at http://www.hbm.com/HBMdoc).
2.2 The markings used in this document
Important instructions for your safety are specifically
identified. It is essential to follow these instructions in
order to prevent accidents and damage to property.
Symbol Significance
Notice This marking draws your attention to a situation in
which failure to comply with safety requirements can
lead to damage to property.
Important
This marking draws your attention to important
information about the product or about handling the
product.
Tip
This marking indicates application tips or other
information that is useful to you.
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
references to other chapters and external documents.
Mounting
RTN A1153-2.0 HBM: public 7
3 Mounting
When mounting the load cells the following points are to
be noted:
SPlease handle the load cells with care!
SLoad cells are precision transducers, the achievable
accuracy therefore depends very much on correct
assembly!
SUse suitable lifting gear for mounting the weighing
device!
SDo not overload the load cell, not even temporarily
(e.g. by unevenly distributed support loads)!
SUse equal height dummies when carrying out align
ment work that may damage the load cell!
SEnsure point load application in the load cell's direc
tion of measurement. Use spherical thrust pieces with
sufficient radius (HBM accessory).
SAvoid transverse forces and moments (see also the
chapter ”Technical Data”)!
SDepending on the actual design provide for lift-off
protection devices and limit stops!
SBring the force introduction points of the load cells to
the same level. For this purpose, the mounting acces
sories include shims!
SProtect the load cell against
- one-sided heat radiation
- influences caused by subsequent welding work1)
1) Each load cell should be bridged by a twisted copper cable on assembly, or immediately there
after, (e.g. EEK... by HBM= approx. 16 mm2). This is how you prevent damage by welding cur
rents. The grounding of the load cell reduces the hazard of load cell damage by lightning.
Mounting
8A1153-2.0 HBM: public RTN
- major temperature variations!
SIn order to prevent fast wear, the force introduction
point should be greased. Please ensure that you do
not use too much grease as the cell butyl ring will
otherwise stick from a nominal load >4.7 t!
Assembly preparation
SThe site surfaces or foundations must be level and
horizontally aligned.
SThe contact area (baseplate of the load cell) must
meet special requirements (e.g. heat expansion coef
ficient 11⋅10-6/K).
SFor correct functioning, always use the original HBM
baseplate. This is included in the scope of delivery of
the HBM mounting accessories VEN and VPN.
Mechanical sources of error
Transverse forces
SThe load cell is not loaded exclusively in its direction
of measurement, caused by an incorrect assembly or
a construction with insufficient flexural strength.
During operation transverse forces can occur in the fol
lowing circumstances:
1. Breaking forces of a vehicle on a weighing bridge
2. Bending of the construction
3. Expansion of the construction due to temperature in
creases
4. Wind forces in the open air
5. Drive motors / mixers
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