SITRANS LU180 is a short-range integrated ultrasonic level transmitter. It is intrinsically safe (ATEX, UKEX, CSA, FM, IECEx, NEPSI), 2 wire, 4 to 20 mA loop-powered, ideal for liquids, slurries, and bulk materials in open or closed vessels to 5 meters (16.4 feet).
• Easy to install, program, and maintain
• Accurate and reliable
• Sanitary models available
• Patented Sonic Intelligence echo processing
• Integral temperature compensation
The transducer is available in PVDF copolymer, making the device suitable for use in a wide variety of applications. SITRANS LU180 is easy to install and maintain, and can be quickly removed for cleaning as required by the food, beverage and pharmaceutical industries. The reliability of the level data is based on the Sonic Intelligence echo processing algorithms. A filter discriminates between the true echo and false echoes from acoustic or electrical noises and agitator blades in motion. The ultrasonic pulse propagation time to the material and back is temperature compensated and converted into distance for display, analog output.
• Key Applications: chemical storage vessels, filter beds, mud pits, liquid storage vessels, food applications
Specification Category | Details |
Product Model | Siemens SITRANS LU180 (2 wire short range ultrasonic level transmitter) |
Measurement Principle | Non contact ultrasonic time of flight (TOF) with built in temperature compensation |
Operating Frequency | 54 kHz |
Measurement Range | 0.25–5 m (0.8–16.4 ft) (liquids only) |
Beam Angle | 12° (@ 3 dB full angle) |
Accuracy | ±0.25% of full scale (typical at reference conditions) |
Repeatability | ±3 mm (0.125 in) |
Resolution | 1 mm |
Output Signal | 2 wire 4–20 mA (proportional/inverse proportional); HART® (optional) |
Loop Load | Max 600 Ω at 24 V DC |
Power Supply | 12–30 V DC (0.1 A surge protection) |
Power Consumption | Max 0.75 W (25 mA at 24 V DC) |
Process Temperature | -40 °C to +60 °C (-40 °F to +140 °F) |
Ambient Temperature | -40 °C to +60 °C (-40 °F to +140 °F) |
Process Pressure | Atmospheric (up to 1 bar, typical) |
Enclosure/Ingress Protection | PBT housing; IP68 (2 m for 24 hours) / NEMA 6 |
Wetted Parts Material | PVDF (Kynar) |
Process Connections | 2" NPT/BSPT standard; optional 4" Tri clamp; 1/2" NPT electrical conduit |
Conduit Entry | 1 × M20 or 1/2" NPT |
Display | Local 3 digit 9 mm LCD + multi segment graphic; under cover for protection |
Programming | 2 tactile buttons (under cover) |
Memory | Non volatile EEPROM (no battery required) |
Signal Processing | Sonic Intelligence / Process Intelligence; auto false echo suppression for agitators/obstructions |
Key Features | Intrinsically safe for hazardous areas; temperature compensation; compact; maintenance free |
Certifications | • Intrinsically Safe: ATEX/IECEx Ex ia IIC T4 Ga; FM/CSA Class I Div 1; UKEX • General: CE; NEPSI |
Weight | Approx. 1.3 kg (2.87 lb) |
Applications | Liquids in open/closed tanks, water/wastewater, chemical storage, sumps, pumping stations |
Packaging: Original box
Esito (weifang) Automation Equipment Co., Ltd. specializes in industrial automation instrument development, production and sales, technical services, and supporting equipment supply of specialized companies. The main products are flow meters, level meters, temperature meters, pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC), DCS distributed control systems, and eight series of more than 1,000 specifications. Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental protection, plastics, food, printing, tobacco, textile, dyeing, and other fields.
We can offer rosemount, Endress+Hauser, yokogawa, Siemens, ABB,Fisher,Koso, Samson, Abzil, NELES,UE etc, Brands.
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