Operating Instructions

Table Of Contents
Temperature at process con‐
nection
Stainless steel anten‐
na (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)
Aluminum horn, with polypropylene lens
antenna version, threaded PVDF anten‐
na:
−40 to +80 °C (−40 to +176 °F)
PTFE 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
(Page 236).
11.7 Approvals
Note
The device nameplate lists the approvals that apply to your device.
Application type LR250 version Approval rating Valid for:
Non-hazardous
General purpose CSA
US/C
, FM, CE, RCM N. America, Eu‐
rope
Radio Europe (RED), FCC, Industry Canada
Technical data
11.7 Approvals
SITRANS LR250 with mA/HART
Operating Instructions, 10/2019, A5E32220602-AG 171