Siemens SITRANS L Series Operating Instructions Manual page 58

False reflections
Deviation with liquids
Non-repeatability
Deviation with bulk solids
a
Already included in the meas. deviation
Variables influencing measurement accuracy
Temperature drift - Digital
output
Temperature drift - Current
output
Deviation in the current
output due to digital/analogue
conversion
Additional deviation through electromagnetic interference
According to NAMUR NE 21
According to EN 61326-1
According to IACS E10
(shipbuilding)/IEC 60945
Characteristics and performance data
Measuring frequency
Measuring cycle time
Step response time
Beam angle
a
With operating voltage U
b
Time span after a sudden distance change from 1 m to 5 m until the output signal reaches 90 % of the
final value for the first time (IEC 61298-2). Valid with operating voltage U
c
Outside the specified beam angle, the energy level of the radar signal is 50% (-3 dB) less.
Ambient conditions
Ambient temperature
Storage and transport
temperature
Mechanical environmental conditions
Vibrations (sinusoidal
vibrations)
Impacts (mechanical shock)
Impact resistance
SITRANS LR110
Operating Instructions, 08/2020, A5E49829006
Biggest false signal, 20 dB smaller than the useful signal
≤ 2 mm (measuring distance > 0.25 m/0.8202 ft) or ±10 mm
(measuring distance 0 ... 0.25 m/0.8202 ft)
a
≤ 2 mm
The values depend to a great extent on the application. Binding
specifications are thus not possible.
< 3 mm/10 K, max. 5 mm
< 0.03 %/10 K or max. 0.3 % relating to the 16.7 mA span
< 15 µA
< 80 µA
None
< 250 µA
W-band (80 GHz technology)
a
≤ 250 ms
b
≤ 3 s
c
8°
≥ 24 V DC
B
-40 ... +80 °C (-40 ... +176 °F)
-40 ... +80 °C (-40 ... +176 °F)
Class 4M8 (5 g at 4 ... 200 Hz acc. to IEC 60271-3-4)
Class 6M4 (50 g, 2.3 ms acc. to IEC 60271-3-6)
IK07 acc. to IEC 62262
Technical data and dimensions
13.1 Technical data
≥ 24 V DC.
B
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