Principle Of Operation; Adjustment - Siemens SITRANS L Operating Instructions Manual

Description
3.2 Principle of operation
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Figure 3.1
Nameplate
The nameplate contains the most important data for identification and use of the
transmitter:
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3.2

Principle of operation

Application area
SITRANS LR120 is a radar transmitter for non-contact, continuous level
measurement. It is suitable for liquids and solids in practically all industries.
Functional principle
The transmitter emits a continuous, frequency-modulated radar signal through its
antenna. The emitted signal is reflected by the medium and received by the antenna
as an echo with modified frequency. The frequency change is proportional to the
distance and is converted into the level.
3.3

Adjustment

Wireless adjustment
Devices with integrated Bluetooth module can be adjusted wirelessly via
Siemens mobile IQ app.
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Electronics housing
Mounting thread
Connection cable
Components of SITRANS LR120
Transmitter type
Information about approvals
Configuration information
Technical data
Serial number of the transmitter
QR code for device identification
Numerical code for Bluetooth access (optional)
Manufacturer information
SITRANS LR120, HART
Operating Instructions, 10/2023, A5E49829026