Siemens Sitrans LR250 User Manual

Technical data
11.5 Environmental
SITRANS LR250 (PROFIBUS PA)
184 Operating Instructions, 08/2014, A5E32221386-AC
11.5
Environmental
Note
•
For the specific configuration you are about to use or install, check transmitter nameplate
and see Approvals (Page 185).
•
Use appropriate conduit seals to maintain IP or NEMA rating.
Location
indoor/ outdoor
Altitude
5000 m (16,404 ft) max.
Ambient temperature
−40 to +80 °C (−40 to +176 °F)
Relative humidity suitable for outdoor
Type 4X/NEMA 4X, Type 6/NEMA 6, IP67, IP68 enclosure (see note
above)
Installation category
I
Pollution degree
4
11.6
Process
Note
The maximum temperature is dependent on the process connection, antenna materials, and
vessel pressure. For more detailed information see
Maximum Process Temperature Chart
(Page
242) and Process Pressure/Temperature derating curves.
Temperature at process
connection
Standard Horn antenna
(Threaded or Flanged):
with FKM O-ring
−40 to +200 °C (−40 to +392 °F)
with FFKM O-ring
−20 to +200 °C (−4 to +392 °F)
2" NPT / BSPT / G Threaded PVDF antenna:
−40 to +80 °C (−40 to +176 °F)
Flanged encapsulated antenna (FEA)
-40 to +170 °C (−40 to +338 °F)
Hygienic encapsulated antenna (HEA)
-40 to +170 °C (−40 to +338 °F)
with FKM seals used on process
connection: -20 to +170 °C (-4 to +338
°F)
with EPDM seals used on process
connection: -40 to +120 °C (-40 to +248
°F)
Pressure (vessel) Refer to process connection tag and
Process Pressure/Temperature derating
curves.

Siemens Sitrans LR250 Specifications

General

Brand	Siemens
Model	Sitrans LR250
Category	Transmitter
Language	English