Siemens SITRANS L Operating Instructions Manual page 182

Technical specifications
11.5 Environmental
11.5 Environmental
Note
• For the specific configuration you are about to use or install, check transmitter nameplate
and see Approvals (Page 183).
• Use appropriate conduit seals to maintain IP or NEMA rating.
Location
Altitude
Ambient temperature
Relative humidity
Installation category
Pollution degree
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 241) and Process Pressure/Temperature derating curves (Page 242).
Temperature at process con-
nection
Pressure (vessel)
182
indoor/ outdoor
5000 m (16,404 ft) max.
−40 to +80 °C (−40 to +176 °F)
suitable for outdoor
Type 4X, Type 6, IP67, IP68 enclosure (see note above)
I
4
Stainless steel horn an-
tenna (Threaded or
Flanged):
Painted aluminum horn, with polypropylene
lens antenna version, threaded PVDF antenna
PTFE flanged encapsulated antenna (FEA)
Hygienic encapsulated antenna (HEA)
with FKM O-ring -40 to +200 °C (-40 to +392 °F)
with FFKM O-ring -20 to +200 °C (-4 to +392 °F)
-40 to +80 °C (-40 to +176 °F)
-40 to +170 °C (-40 to +338 °F)
-40 to +170 °C (-40 to +338 °F)
with FKM seals used on process connec-
tion: -20 to +170 °C (-4 to +338 °F)
with EPDM seals used on process connec-
tion: -40 to +120 °C (-40 to +248 °F)
Refer to process connection tag and Pro-
cess Pressure/Temperature derating
curves (Page 242).
SITRANS LR250 with FOUNDATION FIELDBUS
Operating Instructions, 09/2021, A5E32221411-AH