SITRANS LR100 series

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

Industry Mall

Select and order

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

Does your application have condensation? No problem.

See a live demonstration on the effects of condensation on the SITRANS LR100.

Setup of the SITRANS LR100 is easy

The Siemens SITRANS mobile IQ app is straightforward. See how quickly you can setup your SITRANS LR100 transmitter with your mobile device.

Ignore obstacles in your application

The Auto False Echo Suppression feature allows you to ignore obstructions in your vessel. And, it’s easy-to-use! See how.

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	PVDF Thread 1½" and 1"	PVDF Thread 1½" and 1"	PVDF Thread 1"	PVDF Thread 1½"	PVDF 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	8°	8°	4°	8°	8°
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

Find downloads, support and services for Siemens radar level measurement.

Downloads

Support

Support Request

Services

The fastest way to the experts

Proposed solutions for your queries and direct access to our experts in Technical Support.

Support Request

Service offers

To remain competitive, companies in industry must ensure – and ideally increase – the availability and productivity of machines and plants. As your partner, we offer a unique range of services and support based on our extensive technology and industry expertise.

Service offers

Service catalog

As your partner, we offer a unique range of services and support based on our extensive technology and industry expertise. With our offerings, you can expect a high degree of reliability and a successful digital future for your company.

Service catalog

Well trained for excellent handling

Receive standardized or individual expertise directly from the manufacturer – with training centers in more than 60 countries.

Training services

Safety integrated

Safety is key in the process industries. A failure in instruments relevant for safety may have serious implications for humans, the process and the environment. Therefore, a wide range of our process instruments come with on-board safety features for maximum risk reduction.

Functional safety

Contact

Industry-leading technology for your toughest applications

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.

Your direct line to Siemens