HBM U5 Series User manual

Mounting Instructions | Montageanleitung |
Notice de montage
English Deutsch Français
U5

Hottinger Baldwin Messtechnik GmbH
Im Tiefen See 45
D-64293 Darmstadt
Tel. [phone]
Fax [phone]
[email protected]
www.hbm.com
Mat.: 7-2001.0289
DVS: A00809_08_Y00_01 HBM: public
09.2019
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
U5

2A00809_08_Y00_01 HBM: public U5
English
1 Safety instructions 3........................................
2 Markings used 5............................................
2.1 The markings used in this document 5..........................
2.2 Symbols on the product 5.....................................
3 Scope of supply 6..........................................
4 Application information 7...................................
5 Structure and mode of operation 8...........................
5.1 Measuring element 8.........................................
5.2 Housing 8..................................................
6 Conditions on site 9........................................
6.1 Ambient temperature 9.......................................
6.2 Moisture 9..................................................
6.3 Deposits 9..................................................
7 Mechanical installation 10....................................
7.1 Important measures for installation 10...........................
7.2 General installation guidelines 10...............................
7.3 Installation for tensile loading/compressive loading 11.............
7.3.1 Installation without adapter 11..................................
7.3.2 Installation with tensile force adapter and knuckle eye 13...........
8 Electrical connection 15......................................
8.1 Order code 19................................................
8.2 Instructions for cabling 20......................................
9 Specifications (VDI/VDE2638) 21..............................
10 Dimensions Standard Version 23.............................
10.1 Mounting accessories for measurement of tensile force 25.........
10.2 Knuckle eyes 26..............................................

Safety instructions
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1 Safety instructions
Use in accordance with the regulations
Force transducers in the U5 range are designed for force measurements on
test benches/in press‐fit devices/test devices/pressing. Use for any additional
purpose shall be deemed to be not in accordance with the regulations.
In the interests of safety, the transducer should only be operated 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 transducer is not a safety element within the meaning of its use as
intended. Proper and safe operation of this transducer requires proper
transportation, correct storage, assembly and mounting and careful operation
and maintenance.
General dangers of failing to follow the safety instructions
The U5 force transducer corresponds to the state of the art and is fail‐safe.
The transducers can give rise to remaining dangers if they are inappropriately
installed and operated by untrained personnel.
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.
Remaining dangers
The scope of supply and performance of the transducer covers only a small
area of force measurement technique. In addition, equipment planners,
installers and operators should plan, implement and respond to the safety
engineering considerations of force measurement technique in such a way as
to minimise remaining dangers. Prevailing regulations must be complied with at
all times. There must be reference to the remaining dangers connected with
force measurement technique.

Safety instructions
4A00809_08_Y00_01 HBM: public U5
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. Mounting
and dismounting the adapter in accordance with Chapter 7 excluded.
Qualified personnel
This instrument 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 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 the installation, fitting,
commissioning and operation of the product who possess the appropriate
qualifications for their function.
Conditions on site
Protect the transducer from damp and weather influences such as rain, snow,
etc.
Maintenance
The U5 force transducer is maintenance free.
Accident prevention
Although the specified nominal force in the destructive range is several times
the full scale value, the relevant accident prevention regulations from the trade
associations must be taken into consideration.

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.
2.2 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).

Scope of supply
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3 Scope of supply
S1 Force transducer U5
S1 Operating Manual U5
Accessories (not included in the scope of supply)
SAdapter
Measuring range 100 kN:
Tensile force adapter each with 8 screws M12 x 50 Order no. 2-9278.0350
Bearing plate each with 8 screws M12 x 30 Order no. 2-9278.0351
Measuring range 200 kN:
Tensile force adapter each with 8 screws M16 x 55 Order no. 2-9278.0353
Bearing plate each with 8 screws M16 x 40 Order no. 2-9278.0354
Measuring range 500 kN:
Tensile force adapter each with 8 screws M20 x 65 Order no. 2-9278.0356
Bearing plate each with 8 screws M20 x 65 Order no. 2-9278.0357
SKnuckle eye ZGUW
100 kN: Order no. 1-Z4/100 kN/ZGUW
200 kN: Order no. 1-U2A/10 t/ZGUW
500 kN: Order no. 1-Z4/500 kN/ZGUW
SCable/Connector
Connection cable Kab139A-6, 6 m, with cable socket 723 and free ends;
Order number: 1-KAB139A-6
Cable, configurable with different plugs and lengths
Order number: K-CAB-F

Application information
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4 Application information
Force transducers of the U5 type series are suitable for measuring tensile and
compressive forces. They measure static and dynamic forces extremely
accurately and therefore require careful handling. You must take particular care
when transporting and installing the devices. If you knock or drop the
transducers, this could permanently damage them.
The housing provides an elaborate seal to protect the sensitive strain gauge
applications and it is essential that this is preserved. Therefore be particularly
careful around the top and bottom of the housing (see Fig. 5.1).
The limits for the permissible mechanical thermal and electrical stresses are
stated in the Specifications. It is essential that these are taken into
consideration in planning the measuring set‐up, during installation and finally,
during operation.

Structure and mode of operation
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5 Structure and mode of operation
5.1 Measuring element
The measuring element is a measuring spring made from stainless steel, to
which strain gauges (S.G.) are applied. The S.G. are arranged so that four of
them can be strained and the other four compressed when the transducer
reacts to a force.
5.2 Housing
The housing with the integrated measuring spring is completed underneath and
on top by an attached cover. No weight must be placed on this cover. It should
be protected against mechanical damage.
Cover
Cover
Fig. 5.1 Cover position

Conditions on site
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6 Conditions on site
6.1 Ambient temperature
The effects of temperature on the zero signal and on the sensitivity are
compensated. To achieve optimal measurement results the nominal
temperature range must be maintained. Temperature‐induced measurement
errors are caused by heating (e.g. radiant heat) or cooling on one side. A
radiation barrier and all‐round thermal insulation will produce a marked
improvement, but should not form a force shunt radiation shield
6.2 Moisture
Extreme humidity or a tropical climate should be avoided if this means that the
classified limit values are exceeded (degree of protection IP65 under DIN
EN 60529).
Notice
Moisture must not be allowed to penetrate the free end of the connection
cable.
6.3 Deposits
Dust, dirt and other foreign bodies must not be allowed to accumulate such
that they divert part of the measured force onto the housing and so falsify the
measured value (force shunt).
Notice
Foreign bodies must not be allowed to clog the gap beneath the flange surface.

Mechanical installation
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7 Mechanical installation
7.1 Important measures for installation
SHandle the transducer with care.
SMake sure that there is a rigid base when measuring compressive forces.
SThe force‐introduction surfaces must be totally clean and fully bearing.
SComply with the engagement depths for threaded rods or knuckle eyes.
SWelding currents must not be allowed to flow over the transducer. If there is
a risk that this might happen, you must use 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, both above and below
the transducer.
SDo not overload the transducer.
WARNING
If there is a risk of breakage through overload on the transducer and thus a risk
to persons, additional safety measures are to be taken.
7.2 General installation guidelines
The direction of measurement in which the forces work should be as much
towards the transducer as possible. Torsion and bending moments, eccentric
loading and transverse forces may result in measurement errors and if the limit
values are exceeded, could destroy the transducer.
The transducer can take up 50 % (60 % at 100 kN) of its nominal force as
transverse force by reference to a force introduction point on the
force‐introduction surface, without losing its mechanical competence.
As mounting accessories for the transducers, HBM supplies U5 standard range
knuckle eyes and adapters as accessories. Knuckle eyes are suitable for use
during quasi‐static loading (10 Hz alternating loads). In the case of dynamic

Mechanical installation
U5 A00809_08_Y00_01 HBM: public 11
loading at a higher frequency, you should use flexible tension bars. Knuckle
eyes prevent the introduction of torsional moments and when 2 knuckle eyes
are used, stop bending moments and transverse and angular loading being
introduced in the transducers.
Various installation fastenings are possible for the transducer (see Fig. 7.1 and
Fig. 7.2).
The sensitivity of the transducer is adjusted for installation using the flange
thread. Should the characteristic tolerance for using the through‐holes be
insufficient, it is possible to carry out a factory calibration for this special
installation situation.
7.3 Installation for tensile loading/compressive loading
7.3.1 Installation without adapter
The transducer is screwed directly on to an existing structural element (e.g.
profile, cover, plate). This type of installation enables the transducers to
measure axial forces in the tensile force and compressive force directions.
Alternating loads can also be recorded perfectly. To achieve this, the
transducer must be mounted without any axial play, which is made easier by
centering aids on the top and bottom of the transducers.
Usable centering assistance on the top is 2.5 mm and on the bottom, 1.5 mm
(see page 23).
SThe structural elements provided by the customer must be parallel to one
another. The screws must be tightened in a diagonally opposite sequence.

Mechanical installation
12 A00809_08_Y00_01 HBM: public U5
Section drawn rotated at the plane of projection
Installation with flange through‐hole Installation with flange thread
provided by
customer
provided by
customer
MA
U5
MA
MA
Fig. 7.1 Installation for tensile loading/compressive loading
Nominal
force
Starting
torque MA
Screws for transducer mounting M
(flange through‐hole)
Resistance class 10.9
T
kN Nm metric UNF1) mm
100 115 8 x M12 8x1/2” approx. 15
200 280 8 x M16 8x5/8” approx. 19
500 560 8 x M20 8x3/4” approx. 23
1) Only for flange through‐hole

Mechanical installation
U5 A00809_08_Y00_01 HBM: public 13
7.3.2 Installation with tensile force adapter and knuckle eye
If the transducer is to be tensile force loaded, it can be mounted with an
adapter (HBM accessory) and a knuckle eye. A centering hole is located on
both sides of the transducer.
When knuckle eyes are used, the breaking force is reduced to 150 %. Knuckle
eyes are only suitable for use with quasi‐static loading (alternating loads
v10 Hz).
Installation with flange through‐hole Installation with flange thread
provided by customer
Tensile force adapter
Lock nut (MB)
Knuckle eye ZGUW
MAMA
H1
MA
MA
Bearing plate
H2
Installation with knuckle eyes
provided by customer
Tensile force
adapter
Tensile force adapter
Lock nut (MB)
Lock nut (MB)
Knuckle eye ZGUW
Knuckle eye ZGUW
Lock nut (MB)
Fig. 7.2 Installation for tensile loading

Mechanical installation
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Nominal force
(kN)
H1 (mm) H2 (mm) Starting torque
MA(Nm)
Starting torque
MB(Nm)
T
(mm)
100 app.159 app. 269 115 1900 app. 15
200 app. 203 app. 351 280 4300 app. 19
500 app. 319 app. 575 560 -1)app. 23
1) secured with 2 screws to prevent torsion
Attaching the knuckle eye
SScrew the correct adapter (dependent on nominal force!; see Chapter 3) to
U5 (taking screw length into account)
STurn the lock nut back as far as the eye
SScrew the knuckle eye into the adapter as far as the stop
SUnscrew knuckle eye 1 to 2 turns and align
SLoad eye with nominal load
STighten lock nut (MB, lock using the flat of the adapter)
CAUTION
When locking with the lock nut, under no circumstances let the torque be trans
mitted through the transducer.

Electrical connection
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8 Electrical connection
Transducers are available with the following electrical connections:
SCable with free ends (standard)
Cable sheath cut at the circumference
Order code: K or Y
10 100
10
WH (white)
BK (black)
RD (red)
BU (blue)
GN (green)
GY (grey)
Shield
Measurement signal (+) UA
Excitation voltage (+) UB
Sensor circuit (-)
Sensor circuit (+)
Excitation voltage (-) UB
Measurement signal (-) UA
Cable shielding, connected to housing
Fig. 8.1 Pin assignment of the U5 with free ends

Electrical connection
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SThere is a 7‐pin male device connector (Binder 723) on the housing
Order code: P
Binder pin male
connector
Assignment Wire
color
61
572
43
Binder 723
Top view 1Measurement signal (+) WH
2Excitation voltage (-) BK
3Excitation voltage (+) BU
4Measurement signal (-) RD
5No function -
6Sensor circuit (+) GN
7Sensor circuit (-) GY
Fig. 8.2 Binder connector series 723 (attached)

Electrical connection
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SCable with MS connector (male)
Order code: M or N
MS male
connector pin
Assignment Wire
color
FA
EGB
DC
Top view AMeasurement signal (+) WH
BExcitation voltage (-) BK
CExcitation voltage (+) BU
DMeasurement signal (-) RD
ENo function -
FSensor circuit (+) GN
GSensor circuit (-) GY
Fig. 8.3 MS male connector pin assignment

Electrical connection
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SCable with sub‐D male connector
Order code: D or F
Sub‐D
connector pin
Assignment Wire
colour
Top view 1Measurement signal (+) WH
2Excitation voltage (-) BK
3Excitation voltage (+) BU
4Measurement signal (-) RD
13 Sensor circuit (+) GN
12 Sensor circuit (-) GY
Fig. 8.4 Sub‐D male connector assignment
The cable shielding is connected in accordance with the Greenline concept.
This means that the measurement system is surrounded by a Faraday cage
and is not affected by electromagnetic interference.
Connectors to CE standard are to be fitted at the free cable end of the
transducer. The shielding is here to be laid over the whole area. If a different
connection technique is used then good EMC shielding is to be provided in the
wiring loom, the shielding again being laid over the full area (see also HBM
Greenline Information, document G36.35.0).