HBM Z6AM User manual

Mounting Instructions | Montageanleitung |
Notice de montage
English Deutsch Français
Z6AM

Hottinger Baldwin Messtechnik GmbH
Im Tiefen See 45
D-64293 Darmstadt
Tel. [phone]
Fax [phone]
[email protected]
www.hbm.com
Mat.: 7-0101.0033
DVS: A01559_03_Y00_00 HBM: public
10.2019
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
Z6AM

2A01559_03_Y00_00 HBM: public Z6AM
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 General 6..................................................
4 Prior to mounting 7.........................................
5 Mounting 8.................................................
6 Operation 10................................................
7 Mounting examples for weigh. modules with stay rods 11.....
8 Connection 12...............................................
8.1 Connecting several weighing modules in parallel 13...............
8.2 Connection using four‐wire circuitry 13...........................
8.3 Cable extensions 13..........................................
9 Dimensions (in mm; 1mm = 0.03937 inches) 14................
10 Specifications for the Z6AM weighing module 15..............
11 Specifications for the Z6... load cells 16.......................

Safety instructions
Z6AM A01559_03_Y00_00 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 fall protection,
overload protection, etc.). For safe and trouble‐free operation, weighing mod
ules 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 prevention regulations. In
particular you should take into account the limit loads quoted in the specifica
tions.
Use in accordance with the regulations
Z6AM 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.
General dangers due to non‐observance of the safety instructions
The Z6AM weighing modules correspond to the state of the art and are
fail‐safe. The weighing 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.

Safety instructions
4A01559_03_Y00_00 HBM: public Z6AM
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 materials 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.
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
Z6AM A01559_03_Y00_00 HBM: public 5
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.
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).

General
6A01559_03_Y00_00 HBM: public Z6AM
3 General
HBM supplies Z6AM weighing modules for max. capacities from 50 kg to
200 kg and 500 kg. The weighing modules are designed mainly for use in
weighing applications.
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 applica
tion elements, and the cover plate. A pendulum support is used for the load
application, 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
Z6AM A01559_03_Y00_00 HBM: public 7
4 Prior to mounting
SCare should be taken to ensure that all surfaces for siting and mounting are
clean, smooth and level. Depending on the mounting conditions, any level
ing error can be compensated for by using suitable wedges and compensa
tion plates (permanently welded) or by grinding away the mounting surface,
for example. On no account must the module plates be ground.
SThe base or foundation frame must be sufficiently rigid to prevent unaccept
able deformation under load (such as sagging).
SIn order to keep the mounting as free of constraining forces as possible, the
fastening holes on the foundation frame and container joint must be suitably
aligned.
SEvery effort should be made to ensure uniform loading on the support
points. Care should be taken to adjust the height on the support points cor
rectly (compensating shims need to be available). This is especially impor
tant in the case of statically undefined supports.

Mounting
8A01559_03_Y00_00 HBM: public Z6AM
5 Mounting
SWhen mounting the container it is important to ensure that no sudden heavy
loads are applied to the module, for instance when lowering it onto the sup
ports. 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 nor
mal 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 val
ues.
SIn the case of statically undefined supports, non‐uniform loading of the mod
ules 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 indi
vidual load cells by applying an excitation voltage 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 unfavorable, the use of
mounting aids such as auxiliary supports or lifting equipment is recommen
ded.
S-The 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 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 upper module plate and lower module plate should be firmly fastened to
the foundation and tank respectively (applies only to modules nondistorted
installed on the support).
SThe fitted EEK4 grounding cable is used to protect against welding currents
that can damage the electronic parts of the transducers.

Mounting
Z6AM A01559_03_Y00_00 HBM: public 9
Notice
The following tightening moments prescribed for the fastening 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 mod
ule: ”Play on overload stop”.

Operation
10 A01559_03_Y00_00 HBM: public Z6AM
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 relieved of load. This pre
vents the load application elements 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 reten
tion devices.
SThe play in the stay rods should be regularly checked and if necessary re
adjusted.

Mounting examples for weigh. modules with stay rods
Z6AM A01559_03_Y00_00 HBM: public 11
7 Mounting examples for weigh. modules with
stay rods
Stay rod
Load introduction
Degree of freedom
Attention:
The represented bearing ar
rangements consider only
weighing‐technical criteria.
The carrying and stability
must be examined and
guaranteed in each case by
the operator.
120°120°
120°
90°90°
90°90°

Connection
12 A01559_03_Y00_00 HBM: public Z6AM
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) Signal (+)
(black) Excitation (-)
(gray) Sense
(blue) Excitation (+)
(green) Sense
(red) Signal (-)
(yellow) 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)
Electrical and magnetic fields often induce interference voltages in the mea
surement 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 contact switches

Connection
Z6AM A01559_03_Y00_00 HBM: public 13
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 output signal is then the average of the individual output signals.
CAUTION
Overloading of an individual load cell cannot then be detected 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 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 capacitance. We recommend
the use of HBM cables, which satisfy these requirements.
With cable extensions it is important to ensure that a good connection is pro
vided, with minimum contact resistance and good insulation.
When using six‐wire circuitry, the effects of resistance changes in the exten
sion cable are compensated. If you extend the cable using four‐wire circuitry,
the sensitivity deviation can be rectified by adjusting the amplifier. However,
temperature effects are only be compensated when operating with six‐wire cir
cuitry.
Route the load‐cell connection cable so that any condensed water or damp
ness 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
14 A01559_03_Y00_00 HBM: public Z6AM
9 Dimensions (in mm; 1mm = 0.03937 inches)
* in upper module plate
** in lower module plate
20**
M12*
155
200
60
14
75
120
14
22.5
79
22.5
17.565
100
~120
1515 150
50

Specifications for the Z6AM weighing module
Z6AM A01559_03_Y00_00 HBM: public 15
10 Specifications for the Z6AM weighing module
Maximum capacity kg 50 100 200 500
Limit load (of load cell) % of max
imum ca
pacity
150
Restoring force
for 1 mm side offset
% of ap
plied load
2.8
Max. permissible side offset
transverse to the stay rod
axis1)
mm ±3.5
Max. permissible horizontal
force in the stay rod direc
tion
kN 5
Material galvanized or stainless2) steel
Weight (depending on version,
including load cell)
kg 8...9
Play on overload stop mm v0.35 v0.25 v0.45 v0.80
1) with horizontal alignment of upper module plate
2) As per EN 10088-1

Specifications for the Z6... load cells
16 A01559_03_Y00_00 HBM: public Z6AM
11 Specifications for the Z6... load cells
Type Z6FC4 Z6FC6
Accuracy class according to OIML R 60
Maximal numbers of load cell verification inter
vals (nLC)
C4
4000
C6
6000
Max. capacity (Emax)kg 20; 50; 100;
200; 500
50; 100; 200;
Minimum load cell verification interval
(vmin)
% of
Emax
0.0066
Sensitivity (Cn)mV/V 2
Tolerance on sensitivity or load ap
plication in specified direction
% ±0,05
Temperature effect on sensitivity
(TKC)1)
% of
Cn/10 K
±0.0070 ±0.0040
Temperature effect on zero balance
(TK0)
±0.0093 ±0.0093
Hysteresis error (dhy)1)
% of Cn
±0.0130 ±0.0080
Linearity deviation (dlin)1) ±0.0150 ±0.0110
Creep (dDR) over 30 min. ±0.0125 ±0.0083
Input resistance (RLC) Ω350...480
Output resistance (R0)Ω356 ±0.12
Reference voltage (Uref)V 5
Nominal range of excitation voltage
(Bu)
V 0.5...12
Insulation resistance (Ris)GΩ>5
Nominal temperature range (BT)
oC [oF]
-10...+40 [+14...+104]
Service temperature range (Btu)-30...+70 [-22...+158]
Storage temperature range (Btl)-50...+85 [-58...185]
Safe load limit (EL)% of
Emax
150
Breaking load (Ed)300

Specifications for the Z6... load cells
Z6AM A01559_03_Y00_00 HBM: public 17
Type Z6FC6Z6FC4
Nennlast kg 100 200 500 1000
Permissible dynamic load % of
Emax
100 100 70 100
Nominal (rated) displacement, approx. mm 0.31 0.39 0.6 0.55
Weight, approx. kg 0.5 0.5 0.5 2.3
Degree of protection according to
EN60529 (IEC529)
IP 68
(severe test conditions: 1 m
water column;100 h)
Material
Measuring body
Bellows
Screwed cable gland
Cable sheath
Stainless steel2)
Stainless steel2)
Stainless steel / Viton®
PVC
1) The values for linearity deviation, relative reversibility error and temperature effect on sensitivity
are typical values. The sum of these values is within the cumulative error limits laid down by OIML
R60.
2) As per EN 10088-1

Specifications for the Z6... load cells
18 A01559_03_Y00_00 HBM: public Z6AM