HBK Z6 User manual

Z6
ENGLISH DEUTSCH FRANÇAIS
Mounting Instructions
Montageanleitung
Notice de montage

Hottinger Brüel & Kjaer GmbH
Im Tiefen See 45
D-64293 Darmstadt
Tel. [phone]
Fax [phone]
[email protected]
www.hbkworld.com
Mat.: 7-2001.5001
DVS: A01027 04 Y00 03
03.2022
Hottinger 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.

Z6
ENGLISH DEUTSCH FRANÇAIS
Mounting Instructions

Z6
TABLE OF CONTENTS
2
TABLE OF CONTENTS
1 Safety instructions 4................................................
2 Markings used 6....................................................
2.1 The markings used in this document 6.................................
2.2 Symbols on the device 6.............................................
3 Conditions on site 7.................................................
4 Mechanical installation 8............................................
4.1 Important precautions during installation 8..............................
4.2 Mounting and load application 8.......................................
5 Electrical connection 10..............................................
5.1 Connection in six-wire configuration 10..................................
5.2 Connection in four-wire configuration 10.................................
5.3 Shortening the cable 11...............................................
5.4 Cable extension 11...................................................
5.5 Parallel connection 11................................................
5.6 EMC protection 12...................................................
6 Waste disposal / environmental protection 13...........................
7 Specifications 14....................................................
7.1 Z6FD1 and Z6FC3 14.................................................
7.2 Z6FC3MI, Z6FC4 and Z6FC6 16........................................
7.3 Specifications for all versions 17.......................................
8 Dimensions 18......................................................
8.1 Z6…/5kg …500kg 18................................................
8.2 Z6…/1t 19..........................................................
9 Accessories 20......................................................
9.1 ZPL pendulum bearing, Emax = 5kg …1t 20.............................
9.2 Knuckle eye ZGWR 21................................................
9.3 Force feedback ZRR 22...............................................
9.4 Rubber-metal bearing ZEL 23..........................................
9.5 Cone, conical pan ZK 26...............................................
9.6 Oscillating loading foot ZFP and ZKP 27.................................
9.7 Oscillating loading foot PCX 28.........................................
9.8 Mounting base / mounting kit 29.......................................

3
Z6
SAFETY INSTRUCTIONS
1 SAFETY INSTRUCTIONS
Appropriate use
Transducers of the Z6... type series are designed solely for technical weighing applica
tions within the application limits detailed in the specifications. Any other use is not
appropriate.
Any person instructed to carry out installation, commissioning or operation of the trans
ducer must have read and understood the Mounting Instructions and in particular the
technical safety instructions.
In the interests of safety, the transducer should only be operated by qualified personnel
and 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.
The transducer is not intended for use as a safety component. Please also refer to the
section: "Additional safety precautions". Proper and safe operation requires proper trans
portation, correct storage, siting and mounting, and careful operation.
Operating conditions
Please observe the permissible maximum values stated in the specifications for:
-Limit load
-Limit load at max. eccentricity
-Limit lateral loading
-Breaking loads
-Temperature limits
-Limits of electrical loading capacity
Note, that when several transducers are installed in a scale, there is not always an
even distribution of load on the individual transducers.
The transducers can be used as machine elements. When used in this manner, it must
be noted that, to favor greater sensitivity, the transducer is not designed with the
safety factors usual in mechanical engineering.
The transducer must not be modified from the design or safety engineering point of
view except with our express agreement.
The transducer is maintenance-free.
In accordance with national and local environmental protection and material recovery
and recycling regulations, old transducers that can no longer be used must be dis
posed of separately and not with normal household garbage, see Chapter 6, Page 12.

Z6
SAFETY INSTRUCTIONS
4
Explosion protection version option
Comply with the relevant code of practice during installation.
Comply with the installation conditions cited in the Certificate of Conformity and/or
the Type Certificate.
Qualified personnel
Qualified persons means persons entrusted with the installation, fitting, commissioning
and operation of the product who possess the appropriate qualifications for their func
tion.
This includes people who meet at least one of the three following requirements:
Knowledge of the safety concepts of measurement and automation technology is a
requirement and as project personnel, they must be familiar with these concepts.
As measurement or automation plant operating personnel, they have been instructed
how to handle the machinery. They are familiar with the operation of the equipment
and technologies described in this documentation.
As commissioning engineers or service engineers, they have successfully completed
the training to qualify them to repair the automation systems. They are also autho
rized to activate, ground and label circuits and equipment in accordance with safety
engineering standards.
Additional safety precautions
Additional safety precautions to meet the requirements of the relevant national and local
accident prevention regulations must be taken in plants where malfunctions could cause
major damage, loss of data or even personal injury.
The scope of supply and performance of the transducer covers only a small area of mea
surement technology. Before starting up the transducer in a system, a project planning
and risk analysis must first be implemented, taking into account all the safety aspects of
measurement and automation technology so that residual risks are minimized. This par
ticularly concerns personal and machine protection. The transducers function passively
and cannot implement any (safety-relevant) cutoffs. In the event of a fault, the relevant
precautions must establish safe operating conditions.
General dangers of failing to follow the safety instructions
The transducer corresponds to the state of the art and is failsafe. The transducer may
give rise to residual dangers if it is inappropriately installed or operated.

5
Z6
MARKINGS USED
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 situ
ation in which failure to comply with safety require
ments 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 in
formation 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
identify references to sections, diagrams, or external
documents and files.
2.2 Symbols on the device
CE certification
The CE mark enables the manufacturer to guarantee that the
product complies with the requirements of the relevant EC direc
tives (the Declaration of Conformity can be found on the HBM
website (www.hbm.com) under HBMdoc).

Z6
CONDITIONS ON SITE
6
3 CONDITIONS ON SITE
Series Z6... load cells are hermetically encapsulated and are therefore not at all sensitive
to the influence of moisture and humidity. The transducers achieve protection class IP68
(test conditions: 100 hours under 1 m water column) as per DIN EN60529. Nevertheless,
the load cells must be protected against constant humidity and moisture.
Protection against corrosion
The load cell must be protected against chemicals that could attack the transducer body
steel, or the cable.
Notice
Acids and all substances that release ions also attack stainless steels and their welded
seams.
Should there be any corrosion, this could cause the transducer to fail. If this is the case,
you must provide appropriate means of protection.
Explosion protection version option
The ambient temperature range specified on the transducer must not be exceeded.
Deposits
Dust, dirt and other foreign matter must not be allowed to accumulate sufficiently to
divert some of the measuring force onto the housing, thus invalidating the measured
value (force shunt).

7
Z6
MECHANICAL INSTALLATION
4 MECHANICAL INSTALLATION
4.1 Important precautions during installation
Handle the transducer with care.
The bellows material is very thin and can therefore be easily damaged.
Welding currents must not be allowed to flow over the transducer. If there is a risk
that this might happen, you must provide 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 above and below the transducer.
Make sure that the transducer cannot be overloaded.
WARNING
There is a danger of the transducer breaking if it is overloaded. This can cause danger for
the operating personnel of the system in which the transducer is installed.
Implement appropriate safety measures to avoid overloads or to protect against the
resulting dangers.
Notice
Load cells are precision measuring elements and need to be handled carefully. Dropping or
knocking the transducer may cause permanent damage. Make sure that the transducer
cannot be overloaded, including while it is being mounted.
4.2 Mounting and load application
Attach the load cells at the mounting holes and apply load to the other end. The screws
and tightening torques to be used are given in the following table:
Maximum
capacities
Thread Min. property class Tightening torque 1)
5 - 200 kg M8 10.9 34 N⋅m
500 kg M10 12.9 76 N⋅m
1 t M12 10.9 115 N⋅m
1) Recommendedvalue for the specified property class. Please comply with the screw manufacturer's
instructions with regard to screw dimensions.

Z6
MECHANICAL INSTALLATION
8
Important
Load must not be applied to the side where the cable connection is located, as this would
cause a force shunt.
The load must act as accurately as possible in the direction of measurement. Torsional
moments, eccentric loads and lateral or side forces cause measurement errors and can
permanently damage the load cell. Catch such interference effects, e.g. using lateral stay
bars or guide rollers, but ensure that these elements do not absorb any load or force
components in the direction of measurement (force shunt which will in turn lead to mea
surement errors).
To minimize error effects from load application, HBM offers different load application
elements, according to the mounting conditions:
Pendulum bearing ZPL
Knuckle eyes ZGWR
Force feedback ZRR (for maximum capacities 5kg …200kg)
Rubber-metal bearing ZEL
Cone/conical pan ZK
Oscillating loading foot PCX (for maximum capacities 5kg …500kg)
Oscillating loading foot ZFP (for maximum capacities 5kg …200kg)
Oscillating loading foot ZKP (for maximum capacities 5kg …200kg)
Mounting base / mounting kit ZPU Z6/ZPU/200KG (for maximum capacities 5kg …
200kg)
Z6/ZPU/500KG (for maximum capacity 500 kg)

9
Z6
ELECTRICAL CONNECTION
5 ELECTRICAL CONNECTION
The following can be connected for measurement signal conditioning:
carrier-frequency amplifiers
DC amplifiers
designed for strain gauge measurement systems.
The load cells are delivered with a six-wire configuration.
5.1 Connection in six-wire configuration
white
black
gray
Excitation voltage (+)
green
red
Shielding/drain wire,
connected to housing
Excitation voltage (-)
Sense lead (-)
Measurement signal (+)
blue
Sense lead (+)
Measurement signal (-)
Fig. 5.1 Pin Assignment
With this connector pin assignment, the output voltage at the measuring amplifier is posi
tive when the transducer is loaded.
5.2 Connection in four-wire configuration
When transducers in a six-wire configuration are connected to amplifiers in a four-wire
configuration, the sense leads of the transducer must be connected to the corresponding
excitation voltage leads: Marking (+) with (+) and marking (-) with (-), see Fig. 5.1. This
measure also reduces the cable resistance of the excitation voltage leads. However,
there will be a voltage loss on the supply leads due to the cable resistance that is still
present and not compensated for by the six-wire configuration. A large part of this loss
can be eliminated by a calibration, however, the temperature-dependent part remains.

Z6
ELECTRICAL CONNECTION
10
Important
The TCsvalue given in the specifications for the transducer therefore does not apply for
the cable and transducer combination when connection is in a four-wire configuration,
where the cable percentage must be added.
The following deviations occur in the case of an uncut cable (3 m):
Sensitivity approx. -0.2%
TCSapprox. -0.01% per 10 K.
5.3 Shortening the cable
If the transducer is connected to an amplifier in a six-wire configuration, the transducer
cable can be shortened as required, without adversely affecting the measurement accu
racy.
5.4 Cable extension
Only use shielded, low-capacitance measurement cables for extending. Ensure that con
nection is perfect, with a low contact resistance.
The cable of a six-wire transducer can be extended with a cable of the same type.
Cable types recommended by HBM:
KAB7.5/00‐2/2/2 (by the meter, Order No. 4‐3301.0071 for gray or 4‐3301.0082 for
blue version)
CABA1 (cable roll, Order No. CABA1/20 = 20 m or CABA1/100 = 100m long)
5.5 Parallel connection
Only load cells with an aligned output (nominal (rated) sensitivity and output resistance)
are suitable for parallel connection. The load cells can be wired in parallel by joining the
load cell cable core ends of the same color. The type VKK terminal boxes or the VKK2R-8
Ex version for potentially explosive areas are available in the HBM product line for this
purpose. The output signal is then the average of the individual output signals.
Important
Overloading in an individual load cell cannot then be detected from the output signal after
load cells have been connected in parallel.

11
Z6
ELECTRICAL CONNECTION
5.6 EMC protection
Background information
Electrical and magnetic fields often induce interference voltages in the measuring circuit.
For reliable measurements, signal differences of less than 1μV must be transmitted with
out interference from the transducer to the evaluation electronics.
Planning of the shielding concept
Due to the numerous application options and the different local constraints, we can only
provide you with information for correct connection. The shielding concept suitable for
your application must be planned locally by an appropriate specialist.
The load cells with shielded, round cables are EMC-tested in accordance with EC direc
tives and identified by CE certification.
Points to be observed
Use shielded, low-capacitance measurement cables only (HBM cables fulfill both con
ditions).
Do not route the measurement cables parallel to power lines and control circuits. If
this is not possible, protect the measurement cable with e.g. steel conduit.
Avoid stray fields from transformers, motors and contact switches.
Connect the shield of the connection cable extensively on the shielding electronics
housing. When using several load cells, connect the shield extensively to the junction
box (combination of transducer signals, e.g. type VKK2 from HBM). From there, con
nect the measurement cable for the electronics extensively to the junction box and
extensively to the shielding electronics housing.
The shield of the connection cable must not be used for discharging potential differ
ences within the system. You must therefore lay sufficiently dimensioned potential
equalization lines to compensate for possible potential differences.
Important
Potential equalization is specified for applications in potentially explosive atmospheres.

Z6
WASTE DISPOSAL / ENVIRONMENTAL PROTECTION
12
6 WASTE DISPOSAL / ENVIRONMENTAL PROTECTION
The correct disposal of old equipment prevents ecological damage and health hazards.
As waste disposal regulations may differ from country to country, we ask that you con
tact your supplier to determine what type of disposal or recycling is legally applicable in
your country.
Packaging
The original HBM packaging is made from recyclable material and can be sent for recy
cling. Store the packaging for at least the duration of the warranty.
For ecological reasons, empty packaging should not be returned to us.

13
Z6
SPECIFICATIONS
7 SPECIFICATIONS
7.1 Z6FD1 and Z6FC3
Type Z6FD1 Z6FC3
Accuracy class 1) D1 C3
Number of load cell verifica
tion intervals nLC 1000 3000
Maximum capacity Emax kg
5; 10; 20; 30;
50; 100; 200;
500; 1000
10; 20; 30; 50; 100;
200; 500; 1000
Minimum load cell
verification interval vmin % of Emax 0.0360 0.0090 0.0083 (for 30 kg)
Temperature coefficient of
zero signal per 10K TC0% of Cn±0.0500 ±0.0126 ±0.0116 (for 30 kg)
Nominal (rated) sensitivity CnmV/V 2.0
Sensitivity tolerance % ±0.1 ±0.05 2)
Temperature coefficient of
the sensitivity3)) per 10 K TCS
% of
Cn
±0.0500 0.0080
Linearity deviation3) dlin ±0.0500 ±0.0180
Relative reversibility error3) dhy ±0.0500 ±0.0170
Load creep in 30 minutes dDR ±0.0490 ±0.0166
Input resistance RLC Ω 350 …480
Output resistance R0356 ±0.2 356 ±0.12
Reference excitation voltage Uref
V
5
Nominal (rated) range of the
excitation voltage BU0.5 …12
Insulation resistance at
100 VDC Ris GΩ> 5
Nominal temperature range BT
°C
-10 …+40
Operating temperature
range Btu -30 …+70
Storage temperature range Btl -50 …+85
Limit load EL% of
Emax
150
Breaking load Edw300

Z6
SPECIFICATIONS
14
Type Z6FC3Z6FD1
Cable length, six-wire
configuration m 3
Degree of protection per DIN EN60529
(IEC529)
IP68 (test conditions 1 m water column /
100h);
Material:
Measuring body
Bellows
Cable inlet gland
Cable sheath
Stainless steel 4)
Stainless steel 4)
Stainless steel / Viton®
PVC
1) As per OIML R60, with PLC = 0.7.
2) For Z6FC3/10kg: v"0.1%.
3) The values for non-linearity (dlin), relative reversibility error (dhy) and temperature coefficient of
sensitivity (TCS) are recommended values. The sum of these values is within the cumulated error limit
laid down by OIML R60.
4) As per EN 10088-1.

15
Z6
SPECIFICATIONS
7.2 Z6FC3MI, Z6FC4 and Z6FC6
Type Z6FC3MI Z6FC4 Z6FC6
Accuracy class 1) C3/MI7.5 C4 C6
Number of load cell verifica
tion intervals nLC 3000 4000 6000
Maximum capacity Emax kg 50; 100;
200
20; 30; 50;
100; 200;
500
20; 30; 50;
100; 200
Minimum load cell verification
interval vmin % of Emax 0.0066
Temperature coefficient of
zero signal per 10K TC0% of Cn"0.0093
Nominal (rated) sensitivity CnmV/V 2.0
Temperature coefficient of
the sensitivity 2) per 10 K TCS
% of
Cn
"0.0080 "0.0070 "0.0040
Non-linearity 2) dlin "0.0180 "0.0150 "0.0110
Relative reversibility error 2) dhy "0.0066 "0.0130 "0.0080
Load creep in 30 minutes "0.0098 "0.0125 "0.0083
Minimum dead load output
return MDLOR 0.5 Emax/ 7500 — —
Input resistance RLC Ω 350 …480
Output resistance R0356 "0.12
Reference excitation voltage Uref
V
5
Nominal (rated) range of the
excitation voltage BU0.5 …12
Insulation resistance at
100 VDC Ris GΩ> 5
Nominal temperature range BT
°C
-10 …+40
Operating temperature range Btu -30 …+70
Storage temperature range Btl -50 …+85
Limit load EL% of
Emax
150
Breaking load Ed> 300
Cable length, six-wire con
figuration m 3

Z6
SPECIFICATIONS
16
Type Z6FC6Z6FC4Z6FC3MI
Degree of protection per DIN EN60529
(IEC529)
IP68 (test conditions 1 m water column /
100h);
Material:
Measuring body
Bellows
Cable inlet gland
Cable sheath
Stainless steel 4))
Stainless steel 4))
Stainless steel / Viton®
PVC
1) As per OIML R60, with PLC = 0.7.
2) For Z6FC3/10kg: v"0.1%.
3) The values for non-linearity (dlin), relative reversibility error (dhy) and temperature coefficient of
sensitivity (TCS) are recommended values. The sum of these values is within the cumulated error limit
laid down by OIML R60.
4) As per EN 10088-1.
7.3 Specifications for all versions
Maximum
capacity kg 5 10 20 30 50 100 200 500 1000
Relative
permissible
vibrational
stress
Fsrel % of
Emax 100 70 100
Nominal
(rated) dis
placement,
approx.
snom mm 0.24 0.3 0.29 0.28 0.27 0.31 0.39 0.6 0.55
Weight,
approx. Gkg 0.5 2.3

17
Z6
DIMENSIONS
8 DIMENSIONS
8.1 Z6…/5kg 0500kg
Dimensions (in mm; 1 mm = 0.03937 inches)
View from below
Measurement direction
123
45
18
82 10
21
AB
∅42
20
20
∅27
9.9
8.2 8.2
BAMax. capacity
10.5 11.1500 kg
5kg …500kg

Z6
DIMENSIONS
18
8.2 Z6…/1t
Dimensions (in mm; 1 mm = 0.03937 inches)
34
210
133±0.1
40
44
22±0.1
13
11.1+0.1
84
∅60
40
25
∅38‐0.1
15
Measurement
direction
70
∅58
View from below