HBM PW27AP User manual
Mounting Instructions | Montageanleitung |
Notice de montage
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PW27AP
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.: 7-0201.0003-1
DVS: A05202_02_Y00_01 HBM: public
08.2019
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.
Mounting Instructions | Montageanleitung |
Notice de montage
English Deutsch Français
PW27AP
2A05202_02_Y00_01 HBM: public PW27AP
English
1 Safety instructions 3........................................
2 Markings used 7............................................
2.1 The markings used in this document 7..........................
2.2 Symbols on the product 8.....................................
3 Conditions on site 9........................................
3.1 Protection against corrosion 9.................................
3.2 Cleaning 9..................................................
3.3 Deposits 9..................................................
4 Mechanical installation 10....................................
4.1 Important precautions during installation 10......................
4.2 Mounting 11..................................................
5 Electrical connection 12......................................
5.1 Connection in a six‐wire configuration 12.........................
5.2 Connection in a four‐wire configuration 12........................
5.3 Shortening the cable 13.......................................
5.4 Extension cable 13............................................
5.5 Parallel connection 13.........................................
5.6 EMC protection 14............................................
6 Dimensions 15..............................................
7 Accessories 16..............................................
8 Specifications 18............................................
Safety instructions
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1 Safety instructions
Appropriate use
Load cells of the PW27AP…type series are designed for technical weighing
applications within the load limits stipulated in the specifications. Any other use
is not appropriate.
Load cells may only be installed by qualified personnel in compliance with the
specifications and with the safety requirements and regulations of these
mounting instructions. It is also essential to observe the applicable legal and
safety regulations for the application concerned. The same applies to the use
of accessories.
Load cells are not intended for use as safety components. Please also follow
the instructions in the “Additional safety precautions" section. Proper and safe
operation of the load cells requires proper transportation, correct storage, siting
and mounting, and careful operation.
Load carrying capacity limits
The data in the technical data sheets must be complied with when using the
load cells. In particular, the respective maximum loads specified must never be
exceeded. The values stated in the technical data sheetsmust not be
exceeded, for example, for
SLimit load
SLimit load at max. eccentricity
SLimit lateral loading
SBreaking loads
STemperature limits
SLimits of electrical loading capacity
Note, that when several load cells are installed in a scale, there is not always
an even distribution of load on the individual load cells.
Safety instructions
4A05202_02_Y00_01 HBM: public PW27AP
Use as a machine element
The load cells can be used as machine elements. When used in this manner, it
must be noted that, to favor greater sensitivity, the load cell is not designed
with the safety factors usual in mechanical engineering. Please refer here to
the section “Load carrying capacity limits" and to the specifications.
Accident prevention
The prevailing accident prevention regulations must be taken into account,
even though the maximum capacity values in the destructive range are well in
excess of the full scale value.
Additional safety precautions
Load cells 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 load cells 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 (e.g. automatic emergency shutdown, overload
protection, catch straps or chains, or other fall protection).
The electronics conditioning the measurement signal should be designed so
that measurement signal failure does not cause damage.
General dangers of failing to follow the safety instructions
Load cells are state‐of‐the‐art and reliable. There may be risks involved if the
transducers are mounted, sited, installed and operated inappropriately, or by
untrained personnel. Everyone involved with siting, starting up, operating or
repairing a load cell must have read and understood the mounting instructions
and in particular the technical safety instructions. The load cells can be
damaged or destroyed by non‐designated use of the load cells 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 load cells. Load cells can break,
particularly in the case of overloading. The breakage of a load cell can also
cause damage to property or injury to persons in the vicinity of the load cell.
Safety instructions
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If load cells 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 load cells 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 load cells).
The scope of supply and performance of the transducer covers only a small
area of weighing technology, as measurements with (resistive) strain gauge
sensors presuppose the use of electronic signal conditioning. In addition,
equipment planners, installers and operators should plan, implement and
respond to the safety engineering considerations of the weighing technology in
such a way as to minimize residual dangers. Pertinent national and local
regulations must be complied with.
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.
Maintenance
PW27AP…load cells are maintenance free.
Selling on
If the load cell is sold on, these mounting instructions must be included with the
load cell.
Environmental protection, disposal
In accordance with national and local environmental protection, 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 disposal, please contact your local
authorities or the dealer from whom you purchased the product.
Safety instructions
6A05202_02_Y00_01 HBM: public PW27AP
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.
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 system startup engineers or service engineers, you have successfully
completed the training to qualify you to repair the automation systems. You
are also authorized to ground and label circuits and equipment and place
them in operation in accordance with safety engineering standards.
Markings used
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2 Markings used
2.1 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
WARNING This marking warns of a potentially dangerous
situation in which failure to comply with safety
requirements can result in death or serious physical
injury.
CAUTION This marking warns of a potentially dangerous
situation in which failure to comply with safety
requirements can result in slight or moderate physical
injury.
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.
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