SITRANS LR100

SITRANS LR100 series are 80 GHz compact radar transmitters with Bluetooth wireless technology. Featuring a narrow beam for flexible installations in existing vessel openings – or non-intrusively through plastic vessels.

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The series consists of five transmitters: 

  • SITRANS LR100 - basic 4-20 mA measurement to 8 m with cable
  • SITRANS LR110 - with communications, hazardous approvals options, and range to 15 m
  • SITRANS LR120 - with communications, longest range to 30 m, and optional submergence shield for flooding protection
  • SITRANS LR140 - basic measurements to 8 m with terminal connection
  • SITRANS LR150 - with HART communication, hazardous approvals, local HMI option, and range to 15 m

Benefits

  • Easy Bluetooth® wireless technology for easy and quick setup with Siemens SITRANS mobile IQ App 
  • 80 GHz narrow beam and small size allows for the easiest installation and commissioning
  • Custom radar microchip means signal killer conditions like condensation, buildup or fluffy solids are no match for the extreme sensitivity of the microchip, the weakest signals are still detected
  • Zero blanking zone allows measurement range right up to the sensor and with an accuracy of 2 mm you can get rid of costly manual measurement methods
  • Digitalization and Industry 4.0 ready with HART 7.0 or optional Modbus RTU for intelligent, value adding data locally or to the cloud

Detail

 
SITRANS LR100
SITRANS LR110
SITRANS LR120
SITRANS LR140
SITRANS LR150
 
7ML530
7ML531
7ML532
7ML533
7ML534
 
Basic 4-20 mA measurement
to 8 m with cable
With communications, hazardous approvals options, and range to 15 m
With communications,
longest range to 30 m,
and optional submergence
shield for flooding protection
Basic measurement to 8 m
with terminal connection
With HART communication,
hazardous approvals, l
ocal HMI option,
and range to 15 m
Measuring pinciple

78-82 GHz, FMCW

78-82 GHz, FMCW

78-82 GHz, FMCW

78-82 GHz, FMCW

78-82 GHz, FMCW

Measuring range
8 m (26 ft)

15 m (49 ft)

30 m (98 ft)
8 m (26 ft)
15 m (49 ft)
Process connections
Thread 1½" and 1"
Thread 1½" and 1"
Thread 1"
Thread 1½"
Thread 1½"
Process pressure

-1 to 3 bar

-1 to 3 bar

-1 to 3 bar

-1 to 3 bar

-1 to 3 bar

Process temperature
-40 to 60 °C (-40 to 140 °F)
-40 to 80˚C (-40 to 176˚F)
-40 to 80˚C (-40 to 176˚F)
-40 to 60 °C (-40 to 140 °F)

-40 to 70˚C (-40 to 158˚F)

Accuracy
5 mm (0.2")

2 mm (0.08")

2 mm (0.08")
5 mm (0.2")
2 mm (0.08")
Beam Angle

mA/Loop,
Communications
2-wire, 4 to 20 mA

2-wire, 4 to 20 mA/

HART or 4-wire, Modbus

2-wire, 4 to 20 mA/

HART or 4-wire, Modbus

2-wire, 4 to 20 mA
2-wire, 4 to 20 mA/HART
Ex approvals
no
Gas and dust
Gas and dust
no
Gas
Optional HMI
no
no
no
no
Yes, with Quick Start Wizard
and diagnostic support
Bluetooth
yes
yes
yes
yes
yes

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When you partner with Siemens, you get true application versatility: easy-to-install radar level measurement with flanged, threaded, and sanitary process connections for every application. This broad range of devices are highly reliable and precise, featuring innovative operations and design for your industry and your process.

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