HBM PW15PH Series Manual de usuario

A3392-1.1 en/de/fr

Single point load cells

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Pesons plateforme

PW15PH...

Mounting instructions

Montageanleitung

Notice de montage

English Page 3 ... 16................................................

Deutsch Seite 17 ... 30..............................................

Français Page 31 ... 45..............................................

PW15PH...

A3392-1.1 en/de/fr HBM

Contents Page

English

Safety instructions 4..............................................

1 Markings used 7...............................................

2 Conditions on site 8...........................................

2.1 Protection against corrosion 8...............................

2.2 Deposits 8................................................

3 Mechanical installation 9.......................................

3.1 Important precautions during installation 9....................

3.2 Mounting and load application 9.............................

4 Electrical connection 11.........................................

4.1 Connection in a six‐wire configuration 11......................

4.2 Connection in a four‐wire configuration 11.....................

4.3 Shortening the cable 12.....................................

4.4 Extension cable 12.........................................

4.5 Parallel connection 12.......................................

4.6 EMC protection 12..........................................

5 Specifications 14...............................................

6 Dimensions 15.................................................

7 Accessories 16.................................................

PW15PH...

A3392-1.1 en/de/frHBM

Safety instructions

Appropriate 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 appropriate.

Load cells may only be installed by qualified personnel in compliance with the

specifications 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 application concerned. The same applies to the use

of accessories.

Load cells are not intended for use as safety components. Please also follow

the instructions in the “Additional 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

The data in the technical data sheets must be complied with when using the

load cells. In particular, the respective maximum loads specified must never

be exceeded. The values stated in the technical data sheetsmust not be

exceeded, for example, for

Limit load

Limit load at max. eccentricity

Limit lateral loading

Breaking loads

Temperature limits

Limits of electrical loading capacity

Note, that when several load cells are installed in a scale, there is not always

an even distribution of load on the individual load cells.

Use as a machine element

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 here to

the section “Load carrying capacity limits" and to the specifications.

Accident prevention

The prevailing accident prevention regulations must be taken into account,

even though the maximum capacity values in the destructive range are well in

excess of the full scale value.

PW15PH...

A3392-1.1 en/de/fr HBM

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 electronics conditioning the measurement signal should be designed so

that measurement signal failure does not cause damage.

General dangers of failing to follow the safety instructions

Load cells are state‐of‐the‐art and reliable. There may be risks involved if the

transducers are mounted, sited, installed and operated inappropriately, or by

untrained personnel. 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. The load cells can be

damaged or destroyed by non‐designated use of the load cells or by

non‐compliance with the mounting and operating instructions, these safety

instructions or any other applicable safety regulations (BG safety and accident

prevention regulations) when using the load cells. Load cells can break,

particularly in the case of overloading. 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 instructions 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 gauge

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 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.

PW15PH...

A3392-1.1 en/de/frHBM

Maintenance

PW15PHload cells are maintenance free.

Selling on

If the load cell is sold on, these mounting instructions must be included with

the load cell.

Environmental protection, disposal

In accordance with national and local environmental protection, material

recovery and recycling regulations, old transducers that can no longer be

used must be disposed of separately and not with normal household waste.

If you need 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 siting, 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

requirements:

- Knowledge of the safety concepts of automation technology is a

requirement and as project personnel, you must be familiar with these

concepts.

- 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.

- As system startup engineers or service engineers, you have successfully

completed the training to qualify you to repair the automation systems. You

are also authorized to ground and label circuits and equipment and place

them in operation in accordance with safety engineering standards.

PW15PH...

A3392-1.1 en/de/fr HBM

1 Markings used

All trademarks and brands used in this document are trade names and/or

trademarks belonging to the respective product or the manufacturer/owner.

HOTTINGER BALDWIN MESSTECHNIK GMBH does not lay claim to any

other than their own trade names/trademarks.

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 Meaning

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.

NOTE

This marking draws your attention to a

situation in which failure to comply with the

safety requirements can result in damage

to property.

Important

This marking draws your attention to

information about the product or about

handling the product.

PW15PH...

A3392-1.1 en/de/frHBM

2 Conditions on site

Series PW15PH load cells are hermetically encapsulated and are therefore

not at all sensitive to the influence of moisture and humidity. The transducers

attain protection class IP68 (test conditions: 100 hours under 1m water

column) and IP69K (water at high pressure, steam cleaner), as per DIN

EN60529. Nevertheless, the load cells must be protected against constant

humidity and moisture.

2.1 Protection against corrosion

The load cell must be protected against chemicals that could attack the

transducer body steel, or the cable.

NOTE

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.

2.2 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).

PW15PH...

A3392-1.1 en/de/fr HBM

3 Mechanical installation

3.1 Important precautions during installation

Handle the transducer with care.

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 provides the highly

flexible EEK ground cable for this purpose, for example, that is 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.

NOTE

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.

3.2 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)

10 100kg M6 10.9 14 Nm

1) Recommended value for the specified property class. Please comply with the screw manufacturer's

instructions with regard to screw dimensions

PW15PH...

A3392-1.1 en/de/frHBM

Important

Load must not be applied to the side where the cable connection is located,

as this would cause a force shunt.

Mounting

= =

Load application

Platform center

Spacing disc

Connector plug

Fig. 3.1: Assembly

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