SITRANS LG250 Guided Wave Radar Level Transmitter

Brand: Siemens AG

The SITRANS LG series are guided wave radar transmitters for level, level/interface, and volume measurement of liquids and solids. It is unaffected by changes in process conditions, high temperatures and pressures, and steam.

The SITRANS LG series comes in four different models, depending on the applications, level of performance, and functionality required.

SITRANS LG250 Highly flexible solution for liquid level and interface applications. Extremely versatile offering solutions for storage, separation of materials or difficult ammonia applications.
Features
  • Reliable and accurate in all liquids – raw materials, storage, and processing 
  • Suitable for foam, buildup, and steam 
  • Easy switch from interface to level measurement 
  • Extended insertion length – probe lengths up to 75 m (246 ft) 
  • Extended diagnostics 
  • Second barrier for aggressive materials, including ammonia

Specifications

Brand

Technology

  • Guided Wave Radar

Measuring Range

  • 2 mm to 75 m (0.08” to 2,952”)

Process Temperature

  • -196° to +450° C (-321° to +842° F)

Vessel Pressure

  • -1 to +100 bar (-100 to +10,000 kPa)

Communication

  • 4-20 mA/HART
  • Modbus: Modbus RTU, Modbus ASCII
  • Profibus PA
  • FOUNDATION Fieldbus
  • SIMATIC PDM
  • DTM/FDT for PACTware
  • Fieldcare

Accuracy

  • ± 2 mm (0.08”)

Ambient/Storage Temperature

  • -40° to +80° C (-40° to +176° F)

Temperature Range

  • -40° to 200° C (-40° to 392° F)

Humidity

  • 20 % to 85 % Relative Humidity

Enclosure/Body Material

  • Plastic Housing Plastic PBT (Polyester)
  • Aluminum Die-cast Housing, Aluminum Die-cast AISi10 mg, Powder-Coated-basis: Polyester
  • Stainless Steel Housing, Precision Casting 316L, Electropolished 316L

Environmental Protection

  • Type 4/NEMA 4
  • IP65
  • IP66/IP67
  • IP68

Cable Inlet

  • 2 x M20 x 1.5
  • 2 x 1/2” NPT

Process Connection

  • G 3/4” A, G 1” A, G 1-1/2” A ACcording to DIN 3852-A
  • 3/4”” NPT, 1” NPT, 1-1/2” NPT
  • DIN from DN 25, ASME from 1”
  • Hygienic Fittings

Seal Material

  • FKM (SHS FPM 70C3 GLT), FFKM (Kalrez 6375), EPDM (A+P 70.10-02), Silicone FEP Coated (A+P FEPOSEAL) or Borosilicate Glass GPC 540

Power Supply

  • 2-Wire HART Version: 9.6-35 Vdc
  • 4-Wire Versions: 9.6-48 Vdc, 20-42 Vac, 50/60 Hz, 90-253 Vac, 50/60 Hz
  • Modbus: 8-30 Vdc
  • PROFIBUS PA & FOUNDATION Fieldbus:  9-32 Vdc

Certifications & Approvals

  • ATEX, FM, CSA, IECEx
  • EHEDG, FDA
  • WHG, Vlarem
  • ABS, CCS, GL, BV, LR

  • Chemical
  • HPI
  • Power
  • General
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