Which Radar Level Transmitter Fits Your Application?

Is your current contacting level technology undependable, unreliable, or maintenance-intensive? Do steam and vapors affect the accuracy and dependability of your existing level device? Do tanks and silos with coned bottoms cause problems getting reliable low level measurements?

Siemens radar technology has the cure for your level headaches. Reliable liquid and bulk solid level measurements, unaffected by steam and vapor. Narrow beam angle radars that provide strong level signals, even in tanks and silos with coned bottoms. Dynamic TVT thresholds that adjust depending on signal strength to reduce Loss-of-Echo errors. Process Intelligence quick start, easy menus, and step-by-step tuning, so you can configure your transmitter in as few as two parameters and less than five minutes — and reprogram the unit without a factory guy if your needs change. All of this and more, for anything from simple liquid storage tanks to dry solids and tall tanks, with prices starting under $1000.

Radar for measuring liquids level
Radar transmitters for
liquid level measurement
Radar for measuring dry solids level
Radar transmitters for
dry solids level measurement

Compare Siemens liquid level radar instruments

Model Siemens SITRANS Probe LR radar transmitter for liquid level
SITRANS Probe LR
Siemens SITRANS LR200 radar transmitter for liquid level
SITRANS LR200
Siemens SITRANS LR250 radar level transmitter horn and PVDF version
SITRANS LR250
Horn and PVDF
Siemens SITRANS LR200 radar level transmitter encapsulated horn versions
SITRANS LR250
Encapsulated
Siemens SITRANS LG200 guided wave radar
SITRANS LG200
MediaLiquidsLiquids and SlurriesLiquids, Slurries,
and Interfaces
Frequency6.3 GHz pulse radar25 GHz pulse radarGuided wave radar
Range1 to 66 feet (0.3 to 20 meters)2" to 66 feet
(0.5 to 20 meters)
0.5 to 75 feet
(0.15 to 22.5 meters)
AntennaRod standard; Horn available, purge optionalHorn and PVDF EncapsulatedFlanged or Hygienic encapsulated horn16 different probes available
Process Temp.-40° to 176°F-40° to 392°F -40° to 320°F-40° to 338°F-320° to 800°F
Process Pressure43.5 PSI max.580 PSI max.435 PSI max.Full vacuum to 6250 PSI max.
Dielectric Constant>3 (for <3 use waveguide antenna or stillpipe >1.6 (depends on horn and installation) Liquids >1.4 to Liquids/slurries >10
Accuracy±Greater of 0.1% range or 10mm±0.02 mATo 2.5mm (0.1")
Output4-20 mA, HART4-20 mA, HART or Profibus PA, NE 434-20 mA, HART, Foundation Fieldbus, Profibus PA, NE 21, NE 434-20 mA, HART
Communi-
cations
HART, SIMATIC PDM, Siemens infrared handheld
Process ConnectionThreaded, flanged, and sanitaryThreaded or flanged ANSI Flanged or HygienicThreaded or flanged
Local
Display
Multi-segment alphanumeric LCD with bar graphGraphical interface, with quick-start wizard and echo profile display Alphanumeric LCD for readout and entry
EnclosurePBT polymer plastic, Type 4X/NEMA 4X, Type 6/IP68Aluminum, Type 4X/NEMA 4X, NEMA 6/IP67 Aluminum, Type 4X, NEMA 4X, Type 6, NEMA 6, IP67, IP68Epoxy-coated aluminum, Type 4, NEMA 4, IP65
ApprovalsCE, CSA, FM, ATEXCSA, CE, FM,
ATEX, 3A, EHEDG
CSA, CE, FM, 3A, ATEX

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Compare Siemens solids level radar instruments

Model Siemens SITRANS LR260 radar level transmitter for dry solids 
SITRANS LR260
 Siemens SITRANS LR460 radar level transmitter for dry solids
SITRANS LR460
Siemens SITRANS LR560 radar level transmitter for dry solids 
SITRANS LR560
MediaSolidsSolidsSolids
Frequency25 GHz pulse radar24.2 to 25.2 GHz FMCW radar78 GHz FMCW radar
Range2" to 98 feet (0.05 to 30 meters)1.15 to 328 feet
(0.35 to 100 meters)
15.75" to 328 feet
(0.4 to 100 meters)
Antenna2", 3", or 4" diameter horn, optional dust cover and purge connection3" or 4" diameter horn, optional dust cover and purge connectionLens antenna, highly resistant to product buidup, with built-in air purge connection
Process Temp.-40° to 392°F-40° to 392°F-40° to 392°F
Process Pressure7.25 PSI (0.5 bar) max.7.25 PSI (0.5 bar) max.43.5 PSI (3 bar) max.
Dielectric
Constant
>1.6>1.4>2.0
Accuracy1" (25mm) from minimum detectable distance to 11.8" (300mm); Rest of range: Greater of 0.4" (10mm) or 0.1% spanGreater of 1" (25mm) or 0.25% span, non-repeatability ≤0.4" (10mm)Greater of 1" (25mm) or 0.25% across full range (includes hysteresis and non-repeatability)
Analog Output4-20 mA loop powered4-20 mA optically isolated4-20 mA
Communications and ProgrammingHART, Profibus PA, SIMATIC PDM, intrinsically safe handheld programmer, local operationHART, Profibus PA, SIMATIC PDM, intrinsically safe handheld programmer, local operationHART communicator, SIMATIC PDM, AMS, PACTware, intrinsically safe handheld programmer, or local user interface
Process ConnectionsUniversal: 2", 3", 4", or 6" with integral EasyAimerUniversal: 3", 4", or 6" with
integral EasyAimer
Universal flat-faced flanges or Aimer flanges (3", 4", and 6" sizes)
Local DisplayGraphic LCD with bargraph and echo profileAlphanumeric LCDGrapic LCD with bar graph representing level
EnclosurePolyester powder-coated aluminum, Type 4X/NEMA 4X, Type 6/NEMA 6, IP67, IP68Polyester powder-coated aluminum, Type 4X/NEMA 4X, Type 6/NEMA 6, IP67, IP68316L stainless steel, Type 4X/NEMA 4X, Type 6/NEMA 6, IP68 with lid closed
ApprovalsCSA, CE, FM, ATEXCSA, CE, FM, ATEXCSA, CE, FM, ATEX

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