HBM HBK U93 User manual
U93
ENGLISH DEUTSCH FRANÇAIS ITALIANO
Mounting Instructions
Montageanleitung
Notice de montage
Istruzioni per il montaggio
Hottinger Brüel & Kjaer GmbH
Im Tiefen See 45
D-64293 Darmstadt
Tel. +49 6151 803-0
Fax +49 6151 803-9100
www.hbkworld.com
Mat.: 7-0111.0005
DVS: A02081 03 YI0 02
04.2022
EHottinger Brüel & Kjaer 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 allge
meiner Form. Sie stellen keine Beschaffenheits- oder
Haltbarkeitsgarantie 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.
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.
U93
ENGLISH DEUTSCH FRANÇAIS ITALIANO
Mounting Instructions
U93
TABLE OF CONTENTS
2
TABLE OF CONTENTS
1 Safety Instructions 3................................................
2 Scope of supply 7...................................................
3 Application instructions 8...........................................
4 Structure and mode of operation 9....................................
4.1 Measuring body 9...................................................
4.2 Strain gage covering 9...............................................
5 Conditions on site 9.................................................
5.1 Ambient temperature 9..............................................
5.2 Moisture and humidity 9.............................................
5.3 Deposits 10.........................................................
6 Mechanical installation 11............................................
6.1 Important precautions during installation 11..............................
6.2 General installation guidelines 11.......................................
6.3 Mounting for tensile/compressive loading 12.............................
7 Electrical connection 14..............................................
7.1 Notes on cabling 14..................................................
7.2 Assignment of cable wires 14..........................................
7.2.1 Connecting to terminals 15............................................
7.2.2 Connecting to a plug 15...............................................
7.3 TEDS transducer identification 16......................................
8 Specifications (VDI/VDE 2638) 17......................................
9 Dimensions 19......................................................
10 Options 20..........................................................
3
U93
SAFETY INSTRUCTIONS
1 SAFETY INSTRUCTIONS
Designated use
The force transducers in the U93 type series are solely designed for measuring (static
and dynamic) tensile and dynamic compressive forces within the load limits specified by
the technical data for the respective maximum capacities. Any other use is not the desig
nated use.
To ensure safe operation, the regulations in the mounting instructions, together with the
following safety requirements, and the data specified in the technical data sheets, must
be complied with. It is also essential to observe the applicable legal and safety regula
tions for the application concerned.
The force transducers are not intended for use as safety components. Please also refer
to the section: “Additional safety precautions”. Proper and safe operation of the force
transducer requires proper transportation, correct storage, siting and mounting, and care
ful operation.
Loading capacity limits
The data in the technical data sheet must be complied with when using the force trans
ducer. In particular, the respective maximum loads specified must never be exceeded.
The following limits set out in the technical data sheets must not be exceeded
SLimit loads
SLateral load limits
SBreaking loads
SPermissible dynamic loads
STemperature limits
SLimits of electrical loading capacity
Please note that when several force transducers are interconnected, the load/force dis
tribution is not always uniform.
Use as a machine element
The force transducers can be used as machine elements. When used in this manner, it
must be noted that, to favor greater sensitivity, the force transducer cannot be designed
with the safety factors usual in mechanical engineering. Please refer here to the section
“Loading capacity limits”, and to 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.
U93
SAFETY INSTRUCTIONS
4
Additional safety precautions
The force transducers 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 force transducer would cause injury to
persons or damage to equipment, the user must take appropriate additional safety mea
sures 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 layout of the electronics conditioning the measurement signal should be such that
measurement signal failure does not cause damage.
General dangers of failing to follow the safety instructions
The force transducers are state‐of‐the‐art and reliable. Transducers can give rise to resid
ual dangers if they are incorrectly operated or inappropriately mounted, installed and op
erated by untrained personnel. Every person involved with siting, 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 instructions, these safety instructions or any
other applicable safety regulations (BG safety and accident prevention regulations) when
using the force transducers. Force transducers can break, particularly in the case of over
loading. The breakage of a force transducer can also cause damage to property or injury
to persons in the vicinity of the force transducer.
If force transducers are not used according to their designated use, or if the safety in
structions or specifications in the mounting and operating instructions are ignored, it is
also possible that the force transducer may fail or malfunction, with the result that per
sons or property may be affected (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 presup
pose the use of electronic signal processing. In addition, equipment planners, installers
and operators should plan, implement and respond to the safety engineering consider
ations of force measurement technology in such a way as to minimize residual dangers.
On‐site regulations must be complied with at all times.
Warns of a potentially dangerous situation in which failure to comply with safety require
ments could result in death or serious physical injury.
WARNING
Description of a potentially dangerous situation
Measures to avoid/prevent the danger
5
U93
SAFETY INSTRUCTIONS
The marking below draws your attention to a situation in which failure to comply with
safety requirements could lead to damage to property.
Notice
Description of a situation that could lead to damage to property
The marking below draws your attention to important information about the product or
about handling the product.
Important
Important information
The marking below contains application tips or other information that is useful to you.
Tip
Information/application instruction
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
The U93 force transducer is 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 waste.
If you need more information about waste disposal, please contact your local authorities
or the dealer from whom you purchased the product.
U93
SAFETY INSTRUCTIONS
6
Qualified personnel
Qualified personnel means persons entrusted with siting, mounting, starting up and oper
ating 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 commissioning engineers or service engineers, you have successfully completed
the training to qualify you to repair the automation systems. You are also authorized
to activate, ground and label circuits and equipment in accordance with safety engi
neering standards.
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.
The force transducer must only be installed by qualified personnel, strictly in accordance
with the specifications and with the safety requirements and regulations listed below.
7
U93
SCOPE OF SUPPLY
2 SCOPE OF SUPPLY
SU93 force transducer
SU93 operating manual
SManufacturing certificate
U93
APPLICATION INSTRUCTIONS
8
3 APPLICATION INSTRUCTIONS
The U93 type series transducers are suitable for measuring tensile and compressive
forces. Because they provide highly accurate static and dynamic force measurements,
they must be handled very carefully. Particular care must be taken when transporting and
installing the devices. Dropping or knocking the transducers may cause permanent dam
age.
It is essential to provide careful sealing so that the sensitive strain gage applications are
protected by the housing. Particular caution must be exercised with the base of the hous
ing, which is very thin.
The specifications on page 17 list the permissible limits for mechanical, thermal and elec
trical stress. It is essential that these are taken into account when planning the measuring
set‐up, during installation and, ultimately, during operation.
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