Adjustment - Siemens SITRANS L Series Operating Instructions Manual

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.
1
2
Figure 3.3
Adjustment via the signal cable
Devices with signal output 4 ... 20 mA/HART can also be operated via a signal cable.
This is done via an interface adapter and a PC/notebook using SIMATIC PDM.
1
2
3
SITRANS LR120
Operating Instructions, 08/2020, A5E49829026
Transmitter
Smart device
Wireless connection to standard operating devices with integrated Bluetooth LE
Transmitter
HART resistance 250 Ω (optional depending on evaluation)
Control system
Description
3.3 Adjustment
9