Siemens SITRANS L Operating Instructions Manual page 178

Technical specifications
Note
Device specifications
Siemens makes every attempt to ensure the accuracy of these specifications but reserves the
right to change them at any time.
11.1 Power
11.2 Performance
Reference operating conditions according to IEC 60770-1
Ambient temperature
Humidity
Ambient pressure
Interference reflections
Measurement Accuracy (measured in accordance with IEC 60770-1)
Maximum measured error
Frequency
Maximum measurement range
178
Bus powered
Current consumed
4)
9-32 V DC, per IEC 61158-2 (Foundation Fieldbus)
20 mA
15 to 25 °C (59 to 77 °F)
45 to 75% relative humidity
860 to 1060 mbar a (86000 to 106000 N/m
minimum 20 dB lower than the main target reflec-
tions
=3 mm (0.12")
1) 2) 3)
repeatability
K-band
1.5" antenna
2" threaded PVDF antenna
2"/DN50/50A Flanged encapsulated
antenna (FEA)
2" ISO 2852, DN50 DIN11864-1/2/3,
DN50 DIN11851,Tuchenhagen Types
F and N Hygienic encapsulated an-
tenna (HEA)
all other versions
SITRANS LR250 with FOUNDATION FIELDBUS
Operating Instructions, 09/2021, A5E32221411-AH
11
a)
2
including hysteresis and non-
10 m (32.8
ft)
5)
20 m (65.6 ft)