Siemens SITRANS Probe LU Quick Start Manual page 4

SITRANS Probe LU (PROFIBUS PA)
WARNING: Changes or modifications not expressly approved by the
manufacturer could void the user's authority to operate the equipment.
This product is intended for use in industrial areas. Operation of this equipment in a
Note:
residential area may cause interference to several frequency based communications.
SITRANS Probe LU is a 2-wire loop-powered, continuous level monitor that uses advanced
ultrasonic techniques. The instrument consists of an electronic component coupled to the
transducer and process connection.
The transducer is available in ETFE (ethylene-tetrafluoroethylene) or PVDF (polyvinylidene
fluoride), allowing SITRANS Probe LU to be used in a wide variety of industries and
applications using corrosive chemicals.
The ultrasonic transducer contains a temperature-sensing element to compensate for
temperature changes in the application.
Communication is via PROFIBUS PA. This device supports acyclic communications from both a
PROFIBUS Class I and Class II master. Signals are processed using Sonic Intelligence® which
has been field-proven in over 500,000 applications worldwide (ultrasonic and radar).
SITRANS Probe LU is available in three versions:
• General Purpose (non-hazardous)
• Intrinsically Safe (with suitable barrier)
• Non-Incendive (FM Class I, Div. 2)
Page EN-2 SITRANS Probe LU (PROFIBUS PA) – QUICK START MANUAL A5E32081626