Siemens SITRANS LG250 Operating Instructions Manual page 67

Guided wave radar, foundation fieldbus coax probe
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Characteristics and performance data
Measuring cycle time
Step response time
5)
Max. filling/emptying speed
Ambient conditions
Ambient, storage and transport tempera-
ture
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 Standard version
Ʋ with borosilicate glass leadthrough
Vessel pressure relating to the flange
nominal stage
Process temperature (thread or flange temperature)
Ʋ FKM (SHS FPM 70C3 GLT)
Ʋ EPDM (A+P 75.5/KW75F)
Ʋ FFKM (Kalrez 6375)
Ʋ FFKM (Kalrez 6375)
Ʋ with borosilicate glass leadthrough
Time span after a sudden measuring distance change by max. 0.5 m in liquid applications, max 2 m with bulk
5)
solids applications, until the output signal has taken for the first time 90 % of the final value (IEC 61298-2).
PBD-51041056
< 500 ms
≤ 3 s
1 m/min
-40 ... +80 °C (-40 ... +176 °F)
-1 ... +40 bar/-100 ... +4000 kPa (-14.5 ... +580 psig),
depending on the process fitting
-1 ... +100 bar/-100 ... +10000 kPa
(-14.5 ... +1450 psig), depending on the process fitting
see supplementary instructions manual "Flanges ac-
cording to DIN-EN-ASME-JIS"
-40 ... +150 °C (-40 ... +302 °F)
-40 ... +150 °C (-40 ... +302 °F)
-20 ... +150 °C (-4 ... +302 °F)
-20 ... +200 °C (-4 ... +392 °F)
-60 ... +150 °C (-76 ... +302 °F)
SITRANS LG250 - Operating Instructions
67

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