Technical Data - Siemens SITRANS LR250 Instrucciones De Servicio Resumidas

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Technical data

Note
Siemens makes every attempt to ensure the accuracy of these specifications but reserves the right to change them at
•
any time.
For a complete listing, including Approvals, see the full operating instructions.
Note
The maximum temperature is dependent on the process connection, antenna materials, and vessel pressure. For more
•
detailed information see Maximum Process Temperature Chart, and Process Pressure/Temperature derating curves in
the full operating instructions.
Process temperature and pressure capabilities are dependent upon information on the process connection tag. The
•
reference drawing listed on the tag is available for download from our website under More information > Installation
drawings > Level Measurement > SITRANS LR250:
Product page (http://www.siemens.com/LR250)
Process connection drawings are also available on the Installation Drawings page.
•
Signal amplitude increases with horn diameter, so use the largest practical size.
•
Optional extensions can be installed below the threads.
•
①
Ambient temperature (surrounding enclosure)
-40 to +80 °C (-40 to +176 °F)
②
Device nameplate
③
Process connection tag (laser etching on antenna body replaces tag on Flanged and Hygienic encapsulated
antennas)
④
Device tag (optional)
9.1 Power
General Purpose
Intrinsically Safe
Non-Sparking
Non-incendive (FM/CSA US/Canada only)
Flameproof
Increased Safety
Explosion-proof (FM/CSA US/Canada only)
● Maximum 30 V DC
● 4 to 20 mA
SITRANS LR250 (mA/HART)
A5E33469191-AA, 08/2014
Nominal 24 V DC at 550 Ohm
Nominal 24 V DC at 250 Ohm
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