User's Manual

7ML19985JE03 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 3
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SITRANS LR250
Application Examples
The application examples used in this manual illustrate typical installations using
SITRANS LR250 (see
Appendix E: Application Examples on page 142). Because there is
often a range of ways to approach an application, other configurations may also apply.
In all examples, substitute your own application details. If the examples do not apply to
your application, check the applicable parameter reference for the available options.
Technical Support
Support is available 24 hours a day.
To find your local Siemens Automation Office address, phone number and fax number go
to:
www.siemens.com/automation/partner
• Click on the tab Contacts by Product then drill down to find your product group
(+Process Automation > +Process Instrumentation > +Level Measuring
Instruments).
• Select the team Technical Support. Click on Next.
• Click on the appropriate continent, then select the country followed by the city.
Click on Next.
For on-line technical support go to:
www.siemens.com/automation/support-request
• Enter the device name (SITRANS LR250) or order number, then click on Search,
and select the appropriate product type. Click on Next.
• You will be prompted to enter a keyword describing your issue. Then either
browse the relevant documentation, or click on Next to email a detailed
description of your issue to Siemens Technical Support staff.
Siemens A&D Technical Support Center: phone [phone]
fax [phone]
Abbreviations and Identifications
Short form Long Form Description Units
CE / FM / CSA
Conformité Européenne / Factory Mutual /
Canadian Standards Association
safety approval
C
i
Internal capacitance F
D/A Digital to analog
DCS Distributed Control System
control room
apparatus
dK dielectric constant
EDD Electronic Device Description