Siemens SITRANS LG250 Operating Instructions Manual page 81

Process conditions
For the process conditions, please also note the specifications on the type label. The lowest value
always applies.
The measurement error through the process conditions in the specified pressure and temperature
range is < 1 %.
Process pressure
Ʋ Process fitting with PPS GF 40
Ʋ Process fitting with PEEK
Vessel pressure relating to the flange
nominal pressure stage
Process temperature (thread or flange temperature)
Ʋ PPS GF 40
Ʋ FKM (SHS FPM 70C3 GLT)
Ʋ EPDM (A+P 75.5/KW75F)
Ʋ Silicone FEP coated (A+P FEP-O-
SEAL)
Ʋ FFKM (Kalrez 6375)
Ʋ FFKM (Kalrez 6375) - with tempera-
ture adapter
80°C
(176°F)
65°C
(149°F)
0°C
(32°F)
-40°C
(-104°F)
-40°C
(-104°F)
Fig. 44: Ambient temperature - process temperature, standard version
1 Ambient temperature
2 Process temperature (depending on the seal material)
3 Maximum permissible temperature - standard
4 Limited temperature range - plastic housing and stainless steel housing, electropolished
PBD-51041388
-1 ... 6 bar/-100 ... 600 kPa (-14.5 ... 87 psi), depending
on the process fitting
-1 ... +40 bar/-100 ... +4000 kPa (-14.5 ... +580 psig),
depending on the process fitting
see supplementary instructions manual "Flanges ac-
cording to DIN-EN-ASME-JIS"
-40 ... +80 °C (-40 ... +176 °F)
-40 ... +150 °C (-40 ... +302 °F)
-40 ... +150 °C (-40 ... +302 °F)
-40 ... +150 °C (-40 ... +302 °F)
-20 ... +150 °C (-4 ... +302 °F)
-20 ... +200 °C (-4 ... +392 °F)
1
(176°F)
SITRANS LG250 - Operating Instructions
80°C 130°C 150°C
(266°F) (302°F)
3
4
2
81