Siemens SITRANS LR120 Modbus Operating Instructions Manual page 56

Variables influencing measurement accuracy
Temperature drift - Digital output
Additional deviation through electromagnetic
interference acc. to EN 61326
Characteristics and performance data
Measuring frequency
Measuring cycle time
Step response time
Beam angle
Dielectric constant
a
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
b
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 (oscillations)
Impacts (mechanical shock)
Impact resistance
Process conditions
For the process conditions, please also note the specifications on the nameplate. The lowest value
(amount) always applies.
Process temperature
Process pressure
Bluetooth interface
Bluetooth standard
Frequency
Max. emitted power
Max. number of participants
Effective range typ.
a
Depending on the local conditions
SITRANS LR120 Modbus
Operating Instructions, 10/2022, 62709-76-01, A5E49829030
a
b
a
Technical data and dimensions
< 3 mm/10 K, max. 5 mm
< 50 mm
W-band (80 GHz technology)
≤ 250 ms
≤ 3 s
4°
> 1.6
≥ 24 V DC.
B
-40 ... +80 °C (-40 ... +176 °F)
-40 ... +80 °C (-40 ... +176 °F)
Class 4M8 acc. to IEC 60271-3-4 (5 g at
4 ... 200 Hz)
Class 6M4 acc. to IEC 60271-3-6 (50 g, 2.3 ms)
IK07 acc. to IEC 62262
-40 ... +80 °C (-40 ... +176 °F)
-1 ... 3 bar (-100 ... 300 kPa/-14.5 ... 43.51 psig)
Bluetooth 5.0
2.402 ... 2.480 GHz
+2.2 dBm
1
25 m (82 ft)
12.1 Technical data
49