Siemens SITRANS LR140, Operating Instructions Manual

Page: 55 / 58

Technical data and dimensions
12.1 Technical data
Options M20 x 1.5; ½ NPT
Cable gland M20 x 1.5 (cable diameter 5 … 9 mm)
Closing cap ½ NPT
Wire cross-section (spring-loaded terminals)
Stranded wire 0.2 mm² (AWG 24) … 2.5 mm² (AWG 14)
Bluetooth interface
Bluetooth standard Bluetooth 5.0 (downward compatible to Bluetooth 4.0 LE)
Frequency 2.402 … 2.480 GHz
Max. emitted power +2.2 dBm
Max. number of participants 1
Effective range typ.
a
25 m (82 ft)
a
Depending on the local conditions
Adjustment
Smart device SITRANS mobile IQ
Voltage supply
Operating voltage U
B
at 4 mA 12 … 35 V DC
at 20 mA 9 … 35 V DC
Reverse voltage protection Integrated
Overvoltage protection
Dielectric strength against
metallic mounting parts
> 10 kV
Overvoltage resistance (test
impulse voltages 1.2/50 µs at
42 Ω)
> 1000 V
Additional overvoltage
arrester
Due to the floating structure of the electronics and comprehensive
insulation measures generally not necessary.
Electrical protective measures
Protection rating IP66/IP67 acc. to IEC 60529Type 4X acc. to UL 50
Altitude above sea level 5000 m (16404 ft)
Protection class III
Pollution degree 4
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SITRANS LR140
Operating Instructions, 08/2020, A5E50352144