SITRANS LU10 Ultrasonic Level Monitor (Discontinued)

  • Ultrasonic Long-Range Level Monitor Specifically for liquids and solids offering 10-point monitoring in a single unit
  • Superior Reliability Delivered by featuring patented Sonic Intelligence echo processing software
  • Ideal for Tank Farms Cost effective
Product Options



SITRANS LU10 is a long-range ultrasonic level monitor for liquids and solids that provides 10-point monitoring. It can be used in a wide range of applications to scan liquids, solids or a combination of both contained in vessels of differing size, shape and configuration up to 60 m (200 ft).

The LU10 level monitor uses ultrasonic technology to measure level, space, volume, distance or average/differential. It features patented Sonic Intelligence® echo processing software for superior reliability. Transducers can be mounted up to 365 m (1200 ft) from the monitor. The LCD displays readings in user-selectable linear engineering units.

The LU 10 ultrasonic level monitor will connect to a PLC or DCS using Siemens SmartLinx® interface modules, providing remote 2-way communication and full parameter access. Modules for popular industrial buses can be factory installed or added later to meet changing requirements. The unit doesn't require an external gateway, which reduces hardware and cabling costs. (handheld programmer shown is an accessory and must be ordered separately.)

Key applications include chemical storage, liquid storage, bulk solids storage (sugar, flour bins, grains, cereals), plastic pellets and tank farms.


  • Ten point, long-range level monitoring
  • Automatic level-to-volume conversion for standard or custom tank shapes
  • Easy to install, easy to program using removable infrared keypad (optional)
  • Backlit LCD display with reading in standard engineering units
  • Dolphin Plus and SmartLinx® compatible

Manufactured by: Siemens-Milltronics
Model: SITRANS LU10 Ultrasonic Level Monitor (Discontinued)

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


Chemical storage
Liquid storage
Bulk solids storage (sugar, flour bins, grains, cereals)
Plastic pellets
Tank farms


Mode of Operation
Measuring Principle Ultrasonic level measurement
Measuring Range Max. 0.3 ... 60 m (1 ... 200 ft)
Measuring Points Max. 10
Ultrasonic Transducer Echomax series,
ST-H transducers
Relays - SITRANS LU SAM module
(option): 20 alarm/control relays
- SPDT Form C relays, rated 5 A at
250 V AC, resistive load
mA Output SITRANS LU A0 module (option):
0/4 ... 20 mA, optically isolated
Max. Load 750 ?, isolated
Resolution 0.1 % of range
Error in Measurement 0.25 % of range or 6 mm (0.24"),
whichever is greater
Resolution 0.1% of measuring range or 2 mm
(0.08"), whichever is greater
Temperature Compensation -50 ... +150 °C (-58 ... +302 °F)
- Integral temperature sensor
- External TS-3 temperature
sensor (expandable to 10 inputs
with optional TIB-9 card)
- Programmable fixed temperature
Rated Operating Conditions - Ambient Conditions
Ambient Temperature for Enclosure -20 ... +50 °C (-4 ... +122 °F)
Weight 2.7 kg (6 lbs)
Material (enclosure) Polycarbonate
Degree of Protection (wall mount) IP65/Type 4X/NEMA 4X
Electrical Connection
Ultrasonic Transducer RG62-A/U coaxial cable with low
Signal Transmission 2-core copper conductor, twisted, shielded, 0.5 ... 0.75 mm�????�???�??�?�² (22 ... 18 AWG), Belden 8760 or equivalent is acceptable
Electrical Connection and Relay Connection Copper conductor according to
local requirements,
rated 250 V 5 A
Synchronization Up to 16 LU10 units can be
synchronized together
Power Supply 100/115/200/230 V AC ± 15%,
50/60 Hz, 31 VA
Displays and Controls 51 x 127 mm (2 x 5") graphics
LCD with backlighting
Memory EEPROM (non-volatile),
no backup battery required
Programming Using removable programmer (ordered separately) or Dolphin Plus (option)
Certificates and Approvals - CE, C-TICK, FM, CSAUS/C ,
- Lloyd's register of Shipping
(Categories ENV1, ENV2, ENV3
and ENV5)
Expansion Card TIB-9, increases the number of
TS-3 inputs from 1 to10
External Temperature Sensor TS-3
Communications - SmartLinx: protocol-specific
modules as interface for popular
industrial fieldbus systems
- Dolphin Plus: Siemens
Windows-compatible interface
and ComVerter link (infrared)
I/O Devices - Max. 3 I/O devices per
- SITRANS LU AO analog output
module (max. 1)
- SITRANS LU SAM, satellite
alarm module (max. 2)



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