HBK PW15PH User manual

PW15PH
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.: 7-0201.0015-1
DVS: A03392 03 Y00 01
06.2023
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.

PW15PH
ENGLISH DEUTSCH FRANÇAIS
Mounting Instructions

PW15PH
TABLE OF CONTENTS
2
TABLE OF CONTENTS
1 Safety instructions 3................................................
2 Markings used 6....................................................
2.1 Markings used in this document 6.....................................
2.2 Symbols on the device 6.............................................
3 Application 7.......................................................
4 Mechanical installation 8............................................
4.1 Mounting instructions 8..............................................
4.2 Load application 8..................................................
5 Electrical connection 10..............................................
5.1 Connection in a six-wire configuration 10................................
5.2 Connection in a four-wire configuration 11...............................
5.3 Shortening the cable 11...............................................
5.4 Extending the cable 11................................................
5.5 Parallel connection 11................................................
5.6 EMC protection 11...................................................
6 Corrosion protection and maintenance 13...............................
7 Specifications 14....................................................
8 Dimensions 15......................................................
9 Accessories 16......................................................

3
PW15PH
SAFETY INSTRUCTIONS
1 SAFETY INSTRUCTIONS
Intended use
Load cells of the PW15PH…type series are designed for technical weighing applications
within the load limits detailed in the specifications. Any other use is not the intended use.
The load cells may only be installed by qualified personnel in compliance with the specifi
cations and with the safety requirements and regulations of these mounting instructions.
It is also essential to observe the applicable legal and safety regulations for the applica
tion concerned. The same applies to the use of accessories.
Load cells are not intended for use as safety components. Please also refer to the “Addi
tional safety precautions” section. Proper and safe operation of the load cells requires
proper transportation, correct storage, siting and mounting, and careful operation.
Load-carrying capacity limits
Comply with the data in the technical data sheets when using the load cells. The respec
tive specified maximum loads in particular must never be exceeded. Do not exceed the
values stated in the technical data sheets, for example, for
Slimit load
Slateral load limiting
Sbreaking loads
Stemperature limits
Slimits of electrical load-carrying capacity
Note that when several load cells are installed in a scale, there is not always an even load
distribution on the individual load cells.
Use as machine elements
The load cells can be used as machine elements. When used in this manner, it must be
noted that, to favor greater sensitivity, the load cell is not designed with the safety factors
usual in mechanical engineering. Please refer to the “Load-carrying capacity limits” sec
tion and the specifications.
Accident prevention
The applicable accident prevention regulations from employers’ liability insurance associ
ations must be taken into account, even though the stated load in the destructive range is
well in excess of the full scale value.

PW15PH
SAFETY INSTRUCTIONS
4
Additional safety precautions
Load cells 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 load cells would cause injury to persons
or damage to equipment, the user must take appropriate additional safety measures 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 electronic processor that processes the measurement signal should be designed so
that failure of the measurement signal cannot lead to secondary failures.
General dangers of failing to follow the safety instructions
Load cells are state-of-the-art and reliable. Transducers can give rise to residual dangers
if they are mounted, installed, used and operated inappropriately or by untrained person
nel. Everyone involved with siting, starting up, operating or repairing a load cell must have
read and understood the mounting instructions and in particular the technical safety
instructions. Load cells may be damaged or destroyed by improper use or non-compli
ance with the mounting and operating manual, these safety instructions or any other
applicable safety regulations (safety and accident prevention regulations of employers’
liability insurance associations) when handling the load cells. Load cells can break, partic
ularly if overloaded. The breakage of a load cell can also cause damage to property or
injury to persons in the vicinity of the load cell.
If load cells are not used according to their designated use, or if the safety instructions or
specifications in the mounting and operating manual are ignored, it is also possible that
the load cells may fail or malfunction, with the result that persons or property may be
affected (due to the loads acting on or being monitored by the load cells).
The scope of supply and performance of the transducer covers only a small area of
weighing technology, as measurements with (resistive) strain gage sensors presuppose
the use of electronic signal conditioning. In addition, equipment planners, installers and
operators should plan, implement and respond to the safety engineering considerations
of the weighing technology in such a way as to minimize residual dangers. Pertinent
national and local regulations must be complied with.
Conversions and modifications
The design or safety engineering of the transducer must not be modified without our
express permission. Any modification shall exclude all liability on our part for any dam
age resulting therefrom.
Resale
If the load cell is resold, these mounting instructions must be included with the load cell.

5
PW15PH
SAFETY INSTRUCTIONS
Environmental protection, disposal
In accordance with national and local environmental protection, material recovery and
recycling regulations, old transducers that are no longer serviceable must be disposed of
separately from normal household waste.
If you require more information about disposal, please contact your local authorities or
the dealer from whom you purchased the product.
Qualified personnel
Qualified personnel means persons entrusted with installing, mounting, starting up and
operating the product, who possess the appropriate qualifications for their function.
This includes people who meet at least one of the three following criteria:
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 repair the automation systems. You are also authorized to operate,
ground and mark circuits and equipment in accordance with safety engineering stan
dards.

PW15PH
MARKINGS USED
6
2 MARKINGS USED
2.1 Markings used in this document
Important instructions for your safety are highlighted. Following these instructions is
essential in order to prevent accidents and damage to property.
Symbol Significance
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 mark
With the CE mark, the manufacturer guarantees that the product
complies with the requirements of the relevant EC directives (the
Declaration of Conformity can be found on the HBM website
HBM (www.hbm.com) under HBMdoc).
Statutory waste disposal marking
In accordance with national and local environmental protection
and material recovery and recycling regulations, old devices that
can no longer be used must be disposed of separately and not
with normal household garbage.
If you need more information about disposal, please contact
your local authorities or the dealer from whom you purchased
the product.

7
PW15PH
APPLICATION
3 APPLICATION
PW15PH... single-point load cells are available in four maximum capacity ranges from 10
kg to 100 kg. They are suitable for use in the food, packaging and chemicals industries,
and also in retail and agriculture. They are ideal for use in conveyor, floor, shop and
counter scales, as well as in filling and production plants. The PW15PH... load cell is her
metically encapsulated and has the maximum IP rating IP68/IP69K. It also features an
M12 connector plug. Connection cables in various versions and lengths are available as
an option. The load cell is exceptionally rugged and delivers stable results even in
extreme ambient conditions.

PW15PH
MECHANICAL INSTALLATION
8
4 MECHANICAL INSTALLATION
4.1 Mounting instructions
When mounting the load cells, pay attention to the following:
SPlease handle load cells with care!
SLoad cells are precision sensors and so their achievable accuracy depends greatly on
their being mounted correctly!
SUse suitable hoisting gear for mounting the weighing device!
SDo not overload load cells even briefly (e.g. due to unevenly distributed support
loads)!
SWhen carrying out adjustment work that could endanger the load cells, use supports
(dummies) of equal height!
SAvoid lateral forces and torques.
SDepending on the construction, use anti-liftoff devices and limit stops if necessary!
SProtect load cells against
-one-sided heat radiation
-the influences of subsequent welding work
-strong temperature variations!
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 Load application
Attach the load cells at the mounting holes and apply the load to the other end. The table
below contains the required screws and tightening torques:
Maximum capacities Thread Min. property class Tightening torque1)
10 …100kg M6 10.9 14 N⋅m
1) Recommendedvalue for the specified property class. Please note the information on screw dimensions
provided by the screw manufacturer.
Important
Load must not be applied to the side where the cable connection is located, as this would
cause a force shunt.

9
PW15PH
MECHANICAL INSTALLATION
Mounting
= =
= =
Load application
Platform center
Spacing washer
Connector plug
Fig. 4.1 Installation

PW15PH
ELECTRICAL CONNECTION
10
5 ELECTRICAL CONNECTION
The following can be connected for measurement signal conditioning:
SCarrier-frequency amplifiers
SDC voltage amplifiers
that are designed for strain gage measurement systems.
The load cells are supplied in the standard version with an 8-pin connector in a six-wire
configuration. The load cells are optionally available with different cable lengths and with
a hygienic design connection cable.
5.1 Connection in a six-wire configuration
Plug-in contact 1 = measurement signal (+)
Plug-in contact 6 = excitation voltage (-)
Plug-in contact 5 = sense lead (-)
Plug-in contact 7 = excitation voltage (+)
Plug-in contact 3 = sense lead (+)
Plug-in contact 8 = measurement signal (-)
2
3
4
5
6
7
1
8
Plug-in contact 2 = not in use
Plug-in contact 4 = not in use
Fig. 5.1 Connector pin assignment
With this connector pin assignment, the output voltage at the amplifier is positive when
the transducer is under load (see Fig. 4.1). You can find the pin assignment for cables
available as accessories in Section 9 on page 16.

11
PW15PH
ELECTRICAL CONNECTION
5.2 Connection in a four-wire configuration
When transducers in a six-wire configuration are connected to amplifiers in a four-wire
configuration, the sense leads of the transducers must be connected to the correspond
ing 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 6-wire configuration. A large part of this loss can
be eliminated by a calibration, however, the temperature-dependent part remains.
Important
Therefore, the TCSvalue stated for the transducer in the specifications does not apply to
the cable and transducer combination when connection is in a four-wire configuration, in
which case the cable percentage must be added.
5.3 Shortening the cable
If the transducer is connected to an amplifier in a six-wire configuration, you can shorten
the transducer cable if necessary with no adverse effect on measurement accuracy.
5.4 Extending the cable
Use only shielded, low-capacitance measurement cables for extending the cable, making
sure there is a proper connection with minimal contact resistance.
The cable of a six-wire transducer can be extended with a cable of the same type.
5.5 Parallel connection
Only load cells with a compensated output (nominal (rated) sensitivity and output resis
tance) are suitable for parallel connection. This option is not available with type PW15PH
load cells.
5.6 EMC protection
Electrical and magnetic fields often induce interference voltages in the measuring circuit.
To ensure reliable measurement, however, the transducer must be able to transmit signal
differences of a few μV to the analysis unit without interference.
Planning the shielding design
Due to the numerous application options and differing local constraints, we can only
provide you with general information on correct connection. The shielding design suitable
for your application must be planned locally by an appropriate specialist.
HBM load cells with shielded, round cables are EMC-tested in accordance with the
EU Directive and bear the CE mark. Voltage surges as per EN 61000-4-5 can give rise to

PW15PH
ELECTRICAL CONNECTION
12
deviations from the load cell’s specified accuracy. These surges in plants are caused by
lightning strikes or switching operations in power circuits, for example, and disappear
again when interference is no longer active. This is particularly evident with cables over
30 m long or if the equipment is used outdoors. Customers should take additional pre
cautions in these cases.
Please note:
SConnect the connecting cable shield all over the surface of the shielding electronics
housing. When using several load cells, connect the shields all over the surface of the
junction box (combination of transducer signals, e.g. type VKK2 from HBM). From
there, connect the measurement cable for the electronics over the surface of the
junction box and the shielding electronics housing.
SThe shield of the connecting cable must not be used for discharging potential
differences within the system. You must therefore lay sufficiently dimensioned
potential equalization lines to compensate for possible potential differences.
SUse shielded low-capacitance measurement cables only (HBM cables fulfill these
conditions).
SDo not route measurement cables parallel to electric cables, especially power lines
and control circuits. If this is not possible, protect the measurement cable, for
example with steel conduits.
SAvoid stray fields from transformers, motors and contact switches.

13
PW15PH
CORROSION PROTECTION AND MAINTENANCE
6 CORROSION PROTECTION AND MAINTENANCE
Protect load cells against chemicals that could attack the cable or the steel of the hous
ing.
Notice
Acids and all substances that release ions also attack stainless steels and their weld
seams.
The resulting corrosion could cause the transducer to fail. If this is the case, you must pro
vide appropriate means of protection.
The transducer is basically maintenance free.
Dust, dirt and other foreign matter must not be allowed to accumulate sufficiently to
divert some of the measuring force onto the housing, thus distorting the measured value
(force shunt).
Do not use hard or pointed objects to clean the transducer. The transducer achieves an IP
rating of IP68 (test conditions: 100 hours under 1 m water column) and IP69K (water at
high pressure, steam cleaning), as per DIN EN 60529. The transducer is therefore suitable
for wet cleaning. Despite this, the transducer should be protected against the long-term
effects of moisture.

PW15PH
SPECIFICATIONS
14
7 SPECIFICATIONS
Information
For more product information, visit www.hbm.com/de/pw

15
PW15PH
DIMENSIONS
8 DIMENSIONS
Dimensions (in mm; 1mm=0.03937inches)
Type plate
S/N label
12
12
7-M6
12
19.1±0.1
100±0.2
19±0.1
6
19±0.1
150±0.2
25±0.3
40±0.15
M6x0.5
Cn=2mV/V Elim=15kgEmin=0kg
Vmin=0.5g
Emax=10kg
1−PW15PHC3/10KG−1
WEEKYEAR
TC11279
Connector plug

PW15PH
ACCESSORIES
16
9 ACCESSORIES
Connection cable
Connection cable with M12 F connector, 8-pin, TPU IP67, PUR cable
sheath, 5m long
1-KAB168-5
Connection cable with M12 F connector, 8-pin, TPU IP67, PUR cable
sheath, 20m long
1-KAB168-20
Connection cable with M12 F male connector, 8-pin,
stainless steel IP68/IP69K, hygiene design, 3m long
1-KAB175-3-1
Connection cable with M12 F male connector, 8-pin,
stainless steel IP68/IP69K, hygiene design, 6m long
1-KAB175-6-1
Connection cable with M12 F male connector, 8-pin,
stainless steel IP68/IP69K, hygiene design, 12 m long
1-KAB175-12-1
For connection cable specifications, see separate data sheet B03643.
Pin assignment 1-KAB168
Color code Connection
White Measurement signal (+)
Red Measurement signal (-)
Blue Excitation voltage (+)
Pink Excitation voltage (-)
Green Sense lead (+)
Gray Sense lead (-)
Yellow Not in use
Brown Not in use

17
PW15PH
ACCESSORIES
Pin assignment 1-KAB175
Color code Connection
White Measurement signal (+)
Red Measurement signal (-)
Blue Excitation voltage (+)
Black Excitation voltage (-)
Green Sense lead (+)
Gray Sense lead (-)

PW15PH
ACCESSORIES
18