Siemens SIWAREX R User manual

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SIWAREX R
Load Cells
Operating Instructions Edition 06/2009

SIWAREX R Load Cells Operating Manual
A5E00159640 2
Table of Contents:
Safety Instructions............................................................................3
General Information..........................................................................4
Notes on product liability.................................................................4
1 Technical Description.......................................................................5
1.1 Area of Application.............................................................................. 5
1.2 Structure ............................................................................................. 5
1.3 System Configuration.......................................................................... 7
2 Installation/Assembly.....................................................................10
2.1 Installation......................................................................................... 10
2.2 Assembly .......................................................................................... 13
2.3 Disassembly...................................................................................... 16
3 Commissioning...............................................................................17
4 Service.............................................................................................19
4.1 Care and Maintenance...................................................................... 19
4.2 Troubleshooting ................................................................................ 19
5 Technical Data.................................................................................22
5.1 Functional Data................................................................................. 22
5.2 Unit Version ...................................................................................... 24
5.3 Explosion Protection ......................................................................... 25
5.4 Electromagnetic Compatibility........................................................... 26
5.5 Dimensions ....................................................................................... 27
6 Ordering Data..................................................................................34

SIWAREX R Load Cells Operating Manual
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Safety Instructions
DANGER
indicates that death, severe personal injury or substantial property damage will
result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury can result if proper precautions are
not taken.
CAUTION
This text accompanied by a warning triangle indicates that minor personal injury
can result if proper precautions are not taken.
CAUTION
This text without an accompanying warning triangle means that property damage
may occur if proper precautions are not taken.
ATTENTION
indicates that an undesirable result or state may result if the proper steps are not
taken.
NOTE
indicates a potential benefit if recommendations are followed.
Qualified personnel as used in the safety instructions in this manual and on the
product itself are individuals who are familiar with the installation, assembly, initial
start-up and operation of this product. They must be authorized and qualified to
install, start and maintain devices, systems and circuits in accordance with
national safety rules and regulations.
Copyright © Siemens AG 2009 All rights reserved
The reproduction, transmission or use of this document or its
contents is not permitted without express written authority.
Offenders will be liable for damages. All rights, including rights
created by patent grant or registration of a utility model or design,
are reserved.
Siemens AG
Bereich Automatisierungs- und Antriebstechnik
Geschäftsgebiet Process Instrumentation and Analytics
D-76181 Karlsruhe
Disclaimer of Liability
We have checked the contents of this manual for agreement with
the hardware and software described. Since deviations cannot be
precluded entirely, we cannot guarantee full agreement. However,
the data in this manual are reviewed regularly and any necessary
corrections included in subsequent editions. Suggestions for
improvement are welcomed.
©Siemens AG 2009
Technical data subject to change.

SIWAREX R Load Cells Operating Manual
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General Information
Use for the intended purpose
Use for the intended purpose means that this product may only be used within the
limits of the technical specifications and statement of purpose of this operating
manual.
This device will not be a source of danger provided it is used for the intended
purpose under consideration of the safety instructions.
Perfect, safe operation of this device is conditional upon proper transport, storage,
installation and assembly.
Proper operation of this device can only be ensured if the specifications provided in
technical data are observed.
Improper handling can result in death, severe personal injury and property
damage.
Notes on product liability
We expressly point out that the nature of the product is described exclusively and
conclusively in the contract of sale. The contents of this product documentation are
not part of an earlier or existing agreement, acceptance or legal relationship nor do
they affect these in any way. The particular contract of sale determines the sum of
obligations to be met by Siemens and the guarantee regulation container therein is
complete and is the sole regulation that shall apply. This contractual guarantee
regulation is neither extended nor limited by the information provided in this
document.
Information on delivery
The scope of delivery in accordance with the valid contract of sale is listed in the shipping
documents enclosed in the delivery.
Please observe any relevant instructions when opening the packaging. Check the
shipment for completeness and possible transportation damage. In particular,
compare the order number on the rating plate with the order information.
Please read this operating manual before starting work! It contains important
information and data that, if observed, ensure the overall safety and functionality of
this device. Following these instructions will make it easier for you to use handle
this product and ensure reliable measuring results.

SIWAREX R Load Cells Operating Manual
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1 Technical Description
1.1 Area of Application
SIWAREX R load cells are used for static and dynamic measurements of forces
and weights. They can be used for almost all applications in industrial weighing
technology. These may be for example:
•container, hopper or platform scales,
•rollway, belt or crane scales,
•filling/packing plants, proportioning and mixing,
•filling level and completeness inspection,
•equipment for monitoring pressing and clamping procedures,
•dynamic scales
All applications can be located in areas with mandatory calibration or in hazardous
areas.
1.2 Structure
The SIWAREX R load cells are equipped with wire strain gauges (WSG). WSG
load cells are transducers for converting mechanical forces into electrical signals.
The functional principle is always the same despite different designs.
The basic element is a special spring body. The spring body is deformed elastically
when a force is applied. The integrated WSGs then change their ohmic resistance
(figure 1-1)
Figure 1-1 Principle diagram shown by the example of a bending rod load cell