Siemens SITRANS LR250 Guide De Mise En Service Rapide page 5

Specifications
For a complete listing, see the SITRANS LR250 (HART) Instruction Manual. For Approvals
Approvals
information see
Ambient/Operating Temperature
Notes:
• The maximum temperature is dependent on the process connection, antenna materials,
and vessel pressure: see
detailed information see Process Pressure/Temperature derating curves in the full man-
ual.
• Process temperature and pressure capabilities are dependent upon information on the
process connection tag. The reference drawing listed on the ta is available on the product
page of our website at www.siemens.com/LR250, under More Info/Installation drawings/
Level Measurement/Installation Drawings/LR250. Additional information on process
connections is available on the Installation Drawings page under Process Connection
Diagrams.
• Signal amplitude increases with horn diameter, so use the largest practical size.
• Optional extensions can be installed below the threads.
Maximum Process Temperature Chart
• See
–40 °C to 80 °C (–40 °F to 176 °F)
process temperature at process connection:
standard horn antenna:
- with FKM O-ring: –40
- with FFKM O-ring: –20
2" NPT / BSPT / G Threaded PVDF antenna:
40 to +80 °C (40 to +176 °F)
Power
General Purpose
Intrinsically Safe
Non-Sparking/Energy Limited
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
• Max. startup current:
A5E31997170
on page 4.
Maximum Process Temperature Chart
ambient temperature
(surrounding enclosure)
o o o
C to +200 C (–40 F to +392
o o o
C to +200 C (–4 F to +392
Startup Behavior
see
SITRANS LR250 (HART) – QUICK START MANUAL
on page 23. For more
on page 23, for more details.
o
F)
o
F)
Nominal 24 V DC at 550 Ohm
Nominal 24 V DC at 250 Ohm
on page 24
device
nameplate
process
connection
tag
Page EN-3