Siemens SITRANS L Series Operating Instructions Manual page 57

Technical data and dimensions
13.1 Technical data
b
Depending on the operating conditions
Switch-on phase
Start-up time with operating
voltage U
Starting current (for run-up
time)
Output variable
Output signal
Range of the output signal
Signal resolution
Resolution, digital
Fault signal, current output
(adjustable)
Max. output current
Starting current
Load
Damping (63 % of the input
variable), adjustable
HART output values according to HART 7.0
PV (Primary Value)
SV (Secondary Value)
TV (Third Value)
QV (Fourth Value)
Fulfilled HART specification
Further information on
Manufacturer ID, Device ID,
Device Revision
a
Default values can be assigned individually.
Deviation (according to DIN EN 60770-1)
Process reference conditions according to DIN EN 61298-1
Temperature
Relative humidity
Air pressure
Installation reference conditions
Distance to installations
Reflector
False reflections
Deviation with liquids
50
< 15 s
B
≤ 3.6 mA
4 ... 20 mA/HART
3.8 ... 20.5 mA/HART (default setting)
0.3 µA
1 mm (0.039 in)
≤ 3.6 mA, ≥ 21 mA, last valid measured value
22 mA
≤ 3.6 mA; ≤ 10 mA for 5 ms after switching on
545 Ohm at 24 V DC
0 ... 999 s
Lin. percent
Distance
Measurement reliability
Electronics temperature
7.0
See website of HART Communication Foundation
+18 ... +30 °C (+64 ... +86 °F)
45 ... 75 %
860 ... 1060 mbar/86 ... 106 kPa (12.5 ... 15.4 psig)
> 200 mm (7.874 in)
Flat plate reflector
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
SITRANS LR120
Operating Instructions, 08/2020, A5E49829026