HBM Z6/M User manual
Mounting Instructions | Montageanleitung |
Notice de montage
English Deutsch Français
Z6/M
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.: 7-2001.6001
DVS: A1063-6.0 HBM: public
05.2017
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 durabilité.
Mounting Instructions | Montageanleitung |
Notice de montage
English Deutsch Français
Z6/M
2A1063-6.0 HBM: public Z6/M
English
1 Safety instructions 3........................................
2 Markings used 6............................................
2.1 The markings used in this document 6..........................
2.2 Symbols on the product 7.....................................
3 General 8..................................................
4 Prior to mounting 9.........................................
5 Mounting 10.................................................
6 Operation 12................................................
7 Mounting examples for weigh. modules with stay rods 13.....
8 Connection 14...............................................
8.1 Connecting several weighing modules in parallel 15...............
8.2 Connection using four‐wire circuitry 15...........................
8.3 Cable extensions 16..........................................
9 Dimensions 17..............................................
10 Specifications for the Z6/M... weighing module 18.............
11 Specifications for the Z6... load cells 19.......................
Safety instructions
Z6/M A1063-6.0 HBM: public 3
1 Safety instructions
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, weighing
modules 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
Z6/M... type weighing modules are conceived for
weighing applications. Use for any additional purpose
shall be deemed to be not in accordance with the
regulations.
In the interests of safety, the weighing modules 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 weighing modules are not safety elements 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.
Safety instructions
4A1063-6.0 HBM: public Z6/M
General dangers due to non‐observance of the
safety instructions
The Z6/M... weighing modules correspond to the state of
the art and are fail‐safe. The tank weiginh modules can
give rise to residual 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.
Residual dangers
The scope of supply and performance of the weighing
modules covers only a small area of weighing
technology. In addition, equipment planners, installers
and operators should plan, implement and respond to the
safety engineering considerations of weighing technology
in such a way as to minimise residual dangers. Prevailing
regulations must be complied with at all times. There
must be reference to the residual dangers connected
with weighing technology.
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 weighing modules 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.
Safety instructions
Z6/M A1063-6.0 HBM: public 5
Qualified personnel
These weighing modules are 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.
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
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
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.
General
8A1063-6.0 HBM: public Z6/M
3 General
HBM supplies Z6/M... weighing modules for max. capaci
ties from 30 kg to 200 kg and 500 kg. The weighing mod
ules are designed mainly for use in tank weighing ap
plications.
These weighing modules are fitted with lateral stay rods.
An integral over‐load stop is also fitted.
The modules consist of a base plate, the load cell
complete with load application elements, and the cover
plate. A pendulum support is used for the load applica
tion, providing compensation for horizontal load shifts
(such as may occur as a result of thermal strain, for
example). The weighing modules are pre‐assembled and
a grounding cable is supplied.
Prior to mounting
Z6/M A1063-6.0 HBM: public 9
4 Prior to mounting
SCare should be taken to ensure that all surfaces for
siting and mounting are clean, smooth and level. De
pending on the mounting conditions, any leveling error
can be compensated for by using suitable wedges
and compensation plates (permanently welded) or by
grinding away the mounting surface, for example.
Important
On no account must the module plates be ground.
SThe base or foundation frame must be sufficiently
rigid to prevent unacceptable deformation under load
(such as sagging).
SIn order to keep the mounting as free of constraining
forces as possible, the fastening holes on the founda
tion frame and container joint must be suitably ali
gned.
SEvery effort should be made to ensure uniform load
ing on the support points. Care should be taken to
adjust the height on the support points correctly (com
pensating shims need to be available). This is espe
cially important in the case of statically undefined sup
ports.
Mounting
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5 Mounting
SThe module is delivered with lifted cover plate. Prior to
mounting, the cover plate has to be lowered by
unscrewing the nut.
SWhen mounting the container it is important to ensure
that no sudden heavy loads are applied to the mod
ule, for instance when lowering it onto the supports.
Even transient loads can damage the load cell if they
exceed its limit values.
Notice
The factory‐fitted overload stop is designed for handling
overloads during normal operation. It is not designed to
deal with short, sharp loads imposed during mounting, as
these commonly amount to a multiple of the permissible
limit values.
SIn the case of statically undefined supports, non‐uni
form loading of the modules occurs due to flexibility as
the load is taken up or due to inaccuracy in the height
adjustment. This non‐uniformity should be checked on
the individual load cells by applying an excitation volt
age and comparing the output voltages. To prevent
overloads, any large non‐uniformity should be com
pensated for by inserting shims under the supports
that are least loaded.
SWhen tanks are heavy or mounting conditions are un
favorable, the use of mounting aids such as auxiliary
supports or lifting equipment is recommended.
SThe weighing modules must be installed so that they
are not exposed to lateral forces in the initial state.
This means the built‐in pendulum support must be
Mounting
Z6/M A1063-6.0 HBM: public 11
aligned as near to the perpendicular as possible. This
is the case when the foundation and tank joint are
horizontal and the fastening holes on the foundation
and container joint are suitably aligned.
SThe base plate and cover plate should be firmly fas
tened to the foundation and tank respectively.
SThe fitted EEK4 grounding cable is used to protect
against welding currents that can damage the elec
tronic parts of the transducers.
Notice
If the load cell is to be replaced, the upper module plate
can be lifted by max. 1.5 mm.
Lock the nut in place to hold the upper module plate in
this position. Dismounting the tank itself is not required.
The following tightening moments prescribed for the fas
tening bolts must be adhered to when replacing the load
cell:
up to 200 kg max. Capacity
Galvanized version: 34 N·m
Stainless steel version: 23 N·m
500 kg max. Capacity
Galvanized version: 76 N·m
Stainless steel version: 45 N·m
The setting of the overload stop must be checked after
the replacement load cell has been installed. Please refer
to the specifications for the weighing module: ”Setting
range for the overload stop”.
Operation
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6 Operation
SDust, dirt and other foreign bodies must not be
allowed to collect in such a way that movement of the
transducer (bellows) is restricted.
SThe gap for the overload stop and lateral stops must
also be kept free of contamination.
SThe play of the overload stop (for details see table
”Specifications for the weighing module”) should be
checked at regular intervals, for instance with a feeler
gage, and be readjusted if necessary.
SThe weighing modules should not be completely re
lieved of load. This prevents the load application ele
ments from lifting out.
SLateral displacements which exceed the maximum
permissible value and do not act in the direction of the
stay rods should be avoided by aligning the other
modules appropriately, or should be absorbed by
other stops or retention devices.
SThe play in the stay rods should be regularly checked
and if necessary readjusted.
Mounting examples for weigh. modules with stay rods
Z6/M A1063-6.0 HBM: public 13
7 Mounting examples for weigh. modules with
stay rods
Stay rod
Load introduction
Degree of freedom
120°120°
120°
90°90°
90°90°
Attention:
The represented bearing
arrangements consider only
weighing‐technical criteria.
The carrying and stability
must be examined and
guaranteed in each case by
the operator.
Connection
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8 Connection
The load cells on weighing modules can be connected to:
SCarrier‐frequency measuring amplifiers or
SDC meas. amplifiers suitable for strain‐gage based
measurement systems.
The wiring assignment of the load cell is shown in
Fig. 8.1.
(white)
(black)
(gray)
Feeding (+)
(green)
(red)
(wire strand)
Feeding (-)
Sense (-)
Sense(+)
(blue)
Sense(+)
Signal (-)
Shield, filler connected with housing,
in the case of type Z6F and Z6G load
cells
Fig. 8.1 Wiring assignment of the load cell (six‐wire circuitry)
Connection
Z6/M A1063-6.0 HBM: public 15
Electrical and magnetic fields often induce interference
voltages in the measurement circuit. Therefore:
Suse shielded, low‐capacitance measurement cables
only (HBM cables fulfill both conditions)
Sdo not route the measurement cables parallel to
power lines and control circuits. If this is not possible,
protect the measurement cable with steel conduit for
example
Savoid stray fields from transformers, motors and con
tact switches
8.1 Connecting several weighing modules
in parallel
Load cells can be wired in parallel by joining the load cell
cable core ends of the same color. In this case the HBM
range offers terminal boxes of the VKK... series. The out
put signal is then the average of the individual output si
gnals.
CAUTION
Overloading of an individual load cell cannot then be de
tected from the output signal.
8.2 Connection using four‐wire circuitry
In the event of connections to amplifiers using four‐wire
circuitry, the cores bl (blue) and gn (green) should be
connected together, as should bk (black) and gr (gray).
The following deviations occur in the case of cable of
Connection
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original length (3 m): Sensitivity -0.2 % and temperature
coefficient -0.01 %/10 K.
8.3 Cable extensions
Extension cables must be shielded and of low capaci
tance. We recommend the use of HBM cables, which
satisfy these requirements.
With cable extensions it is important to ensure that a
good connection is provided, with minimum contact re
sistance and good insulation.
When using six‐wire circuitry, the effects of resistance
changes in the extension cable are compensated. If you
extend the cable using four‐wire circuitry, the sensitivity
deviation can be rectified by adjusting the amplifier. How
ever, temperature effects are only be compensated when
operating with six‐wire circuitry.
Route the load‐cell connection cable so that any con
densed water or dampness forming on the cable can drip
off. It must not be able to reach the load cell. In addition
ensure that no dampness can penetrate the open ends of
the cable.
Dimensions
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9 Dimensions
110 100
155
75
14 17.5
17.5 65
190
93.6 ±0.8
15 15
Lifting device
For removing the load cell,
the upper plate can be lifted
by max. 1.5 mm.
Dimensions
(in mm; 1 mm = 0.03937 inches)
Specifications
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10 Specifications for the Z6/M... weighing module
Typ Z6/M
Maximum capacity kg 30 50 100 200 500
Limit load (of load cell) % of maxi
mum ca
pacity
150
Restoring force, for 1 mm
side offset
% of ap
plied load
6,1
Max. permissible side
offset transverse to the
stay rod axis 1)
mm 1.5
Max. permissible hori
zontal force in the stay
rod direction
kN 5
Max. permissible lift‐off
force
kN 5
Material galvanized or stainless steel
Weight (depending on ver
sion, including load cell)
kg 8 ... 9
Play on overload stop mm 0.36 0.35 0.25 0.45 0.80
1) With horizontal alignment of upper module plate
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