HBM PW22 User manual
Mounting Instructions | Montageanleitung |
Notice de montage
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PW22
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.: 7-2001.2443
DVS: A2443-3.0 HBM: public
03.2018
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
PW22
2A2443-3.0 HBM: public PW22
English
1 Safety instructions 3........................................
2 Markings used 6............................................
2.1 Symbols on the product 6.....................................
2.2 The markings used in this document 6..........................
3 Mounting and load application 8.............................
4 Electrical connection 9......................................
4.1 Connecting in four‐wire and six‐wire configurations 9.............
4.2 Shortening the cable 9.......................................
4.3 Cable extensions 10..........................................
4.4 Parallel connection (option) 10..................................
4.5 EMC protection 10............................................
5 Specifications 11............................................
6 Dimensions (in mm; 1 mm = 0,03937 inches) 13................
6.1 Dimensions for version with protection housing 14.................
Safety instructions
PW22 A2443-3.0 HBM: public 3
1 Safety instructions
In cases where a breakage would cause injury to persons or damage to equip
ment, the user must take appropriate safety measures (such as safety devices
to protect against falls, collapses or overloads). For safe and trouble‐free op
eration, load cells must not only be correctly transported, stored, sited and
mounted but must also be carefully operated and maintained.
It is essential to comply with the relevant accident prevention regulations. In
particular you should take into account the limit loads quoted in the specifica
tions.
Appropriate use
Load cells are designed for metrological applications. Use for any additional
purpose shall be deemed to be not appropriate.
In the interests of safety, load cells should only be operated as described in the
Mounting Instructions. 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.
Load cells can be used as machine elements (for container and silo weighing,
for example). In these situations, you must make sure that for greater sensitiv
ity, the load cells are not constructed with the customary safety factors found in
machine design. Load cells are not safety elements within the meaning of ap
propriate use. The layout of the electronics conditioning the measurement sig
nal should be such 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. Load cells can give rise to remain
ing dangers if they are inappropriately installed and operated by untrained per
sonnel.
Everyone involved with siting, starting up, maintaining or repairing a load cell
must have read and understood the Mounting Instructions and in particular the
technical safety instructions.
Safety instructions
4A2443-3.0 HBM: public PW22
Remaining dangers
The scope of supply and performance of the load cells covers only a small
area of weighing technology. In addition, equipment planners, installers and
operators should plan, implement and respond to the safety engineering con
siderations of the weighing technology in such a way as to minimize remaining
dangers. Prevailing regulations must be complied with at all times. Reference
must be made to the remaining dangers associated with the weighing technol
ogy.
Ambient conditions
In the context of your application, please note that because of the alloy ele
ments used, the high‐strength aluminum alloy only has limited corrosion resist
ance if it comes into contact with electrolytes or if there are high and low pH
values. With stainless steel single point load cells, please note that acids and
all materials which release ions will also attack all grades of stainless steel and
their welded seams.
Should there be any corrosion, this could cause the load cell to fail. If this is the
case, the operator must take appropriate protective measures.
Unauthorized conversions and modifications are prohibited
Load cells must not be modified from the design or safety engineering point of
view except with our express agreement. Any modification shall exclude all li
ability on our part for any damage resulting therefrom.
Qualified personnel
Load cells must only be installed by qualified personnel, strictly in accordance
with the specifications in conjunction with the safety requirements and regula
tions listed below. It is also essential to observe the appropriate legal and
safety regulations for the application concerned. The same applies to the use
of accessories.
Qualified personnel means persons entrusted with siting, mounting, starting up
and operating the product, who possess the appropriate qualifications for their
function.
Safety instructions
PW22 A2443-3.0 HBM: public 5
Accident prevention
The prevailing accident prevention regulations must be taken into account,
even though the breaking load is well in excess of the full scale value. Pay par
ticular attention to the following data from the specifications
Slimit load (EL)
Slimit load at max. Eccentricity
Slimit lateral loading (ELq)
Sbreaking load.
CAUTION
Load cells are precision measuring elements and must be handled carefully
during mounting and transportation. Knocking or dropping the load cells can
damage them. Suitable retainers must be used during installation and opera
tion to protect the load cells against overloading. No forces or moments must
be directed via the spring area during mounting.
Markings used
6A2443-3.0 HBM: public PW22
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 rel
evant EC directives (the declaration of conformity is
available at http://www.hbm.com/HBMdoc).
Statutory waste disposal mark
In accordance with national and local environmental
protection and material recovery and recycling regula
tions, old devices that can no longer be used must be
disposed of separately and not with normal household
garbage.
If you need more information about waste disposal,
please contact your local authorities or the dealer from
whom you purchased the product.
2.2 The markings used in this document
Important instructions for your safety are specifically identiefied. It is essential
to follow these instructions in order to prevent accidents and damage to prop
erty
Symbol Significance
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.
Markings used
PW22 A2443-3.0 HBM: public 7
SignificanceSymbol
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 and load application
8A2443-3.0 HBM: public PW22
3 Mounting and load application
The load cells are fixed at the mounting bores. For the recommended screws
and tightening torques refer to the table below:
Max. capacity Thread Min. property class Tightening torque1)
6...90 kg M6 10.9 10 N@m
1) Recommendedvalue for the stated property class. For screw dimensioning please refer to the
appropriate information given by the screw manufacturers.
Load must not be applied to the side where the cable connection is located, as
this would cause a force shunt.
Base plate
Recommended
flatness: 0.1
Center of mounting plate Loading direction
Mounting plate
Load introduction
(Costumer construction)
PW22
(1)
(2)
1: Mounting of PW22 at load introduction: 2 x M6; property class 10.9;
tightening torque 10 N·m; max. thread reach 20 mm.
Recommended flatness 0.1 mm on connection surface
2: Mounting of PW22 on base plate: 2 x M6; property class 10.9:
tightening torque 10 N·m; max. thread reach 20 mm
A_6
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