Level Instrumentation > Transmitters > Siemens SITRANS LR560


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Siemens SITRANS LR560 Radar Transmitter for Continuous Solids Level Monitoring

Siemens SITRANS LR560 loop-powered radar level transmitter is ideal for continuous monitoring of solids in silos to a range of 328 feet. This compact stainless steel unit is ideal for most solids measurement applications, even those with extreme dust or temperatures to 392°F.

The transmitter emits a narrow 4° beam that avoids silo wall obstructions and other installation interferences, so it can be installed almost anywhere on top of the silo. LR560's high frequency operation makes aiming unnecessary, but an optional aiming flange helps direct the beam to any area of interest, like the discharge area of the silo cone.

SITRANS LR560 models are available with HART®, PROFIBUS PA, or Foundation™ Fieldbus protocols. They can be programmed through local pushbuttons on the display interface, by using an infrared handheld programmer, or remote configuration and diagnostics via the communications protocols.

Key Specifications

  • 78GHz frequency allows for narrow 4° beam width
  • Virtually unaffected by dust, vapor, pressure, or temperature
  • Installs almost anywhere on top of a silo, and can even measure cone area
  • Short wavelength for excellent reflection, even on highly sloped surfaces
  • Lens antenna with built-in air purge feature resists material and dust build-up
  • 2.5" antenna fits into almost any tank opening or nozzle
  • Quick-start wizard gets the transmitter up and operational in minutes

Model Selection Guide

Use this table to find the right model for your application. Click the model number to order in our secure online store.

Instrument ships with Siemens Milltronics manual CD containing complete quick start guide and instruction manual.

A complete catalog number will look like this: 7ML5440-_ _ _ _ _-_ _ _ _
SITRANS LR560: Two-wire 78GHz radar level transmitter, stainless steel enclosure, 1x1/2" NPT cable inlet 7ML5440-
Measurement and
Temperature Range
131 Feet max range, -40° to 212°F (40m max, -40° to 100°C)
329 Feet max range -40° to 392°F (100m max, -40° to 200°C)
0 _ _ _ _-
1 _ _ _ _-
Process Connection3" (80mm) universal flat flange, 304 stainless steel
4" (100mm) universal flat flange, 304 stainless steel
6" (150mm) universal flat flange, 304 stainless steel
3" (80mm) universal flat flange, 316L stainless steel
4" (100mm) universal flat flange, 316L stainless steel
6" (150mm) universal flat flange, 316L stainless steel
3" (80mm) universal flat flange, painted aluminum with integral aimer [1]
4" (100mm) universal flat flange, painted aluminum with integral aimer [1]
6" (150mm) universal flat flange, painted aluminum with integral aimer [1]
Pressure Rating7.5 PSIG max (0.5 bar g)
40 PSIG max (3 bar g)
0 _ _ _
1 _ _ _
4-20 mA and HART
Profibus PA
Foundation Fieldbus
_ A _ _
_ B _ _
_ C _ _
Agency Approvals General purpose, CSA, Industry Canada, FCC, CE, R&TTE
CSA/FM Class I, Div 2, Groups A-D, Class II, Div 1, Groups E-G, Class III
_ _ A _
_ _ B _
Local OperationNo local display interface
Local display interface (removable to use on multiple transmitters)
_ _ _ 1
_ _ _ 2
OptionsStainless steel tag: 16-characters for measuring point number/ID,Z Y15
AccessoriesIntrinsically safe infrared hand programmer
Sun shield cover
Printed copy of English instruction manual


(1) Rated to 248°F (120°C) when used with pressure rating option 1 (40 PSIG max).



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