SITRANS LU180 Ultrasonic Level Transmitter
Product Overview
The SITRANS LU180 is a compact, intrinsically safe ultrasonic level transmitter designed for continuous, non-contact measurement of liquids, slurries, and bulk solids in tanks, vessels, and open/closed containers. With a standard range of 5 meters (16.4 ft) and robust signal processing, it delivers reliable level data in industries ranging from chemical processing to water treatment. As part of siemense' SITRANS portfolio, it integrates seamlessly into automated process control systems
Key Features & Specifications
| Parameter |
Specification |
| Measurement Principle |
Ultrasonic pulse propagation (time-of-flight) with temperature compensation |
| Range |
0-5 m (16.4 ft) |
| Accuracy |
±0.25% of full scale (typical under stable conditions) |
| Output Signal |
4-20 mA HART (two-wire loop-powered) |
| Process Connection |
Threaded (e.g., G1½", NPT) or flange options |
| Material |
PVDF copolymer (corrosion-resistant, FDA-compliant) |
| Ingress Protection |
IP66/IP67 |
| Ambient Temperature |
-40°C to +80°C (-40°F to +176°F) |
| Certifications |
ATEX, IECEx, FM, CSA, NEPSI (intrinsic safety for Zone 0/1 hazardous areas) |
| Diagnostics |
Sonioc Intelligence® echo processing, false echo suppression |
Technology Highlights
Sonioc Intelligence® Echo Processing
Employs advanced algorithms to distinguish true level echoes from noise generated by agitators, foam, or structural obstacles .
Adaptive filtering ensures stability in turbulent media or vaporous environments.
PVDF Copolymer Transducer
Resistant to chemicals, UV radiation, and abrasion, suitable for aggressive liquids (acids, alkalis) and hygienic applications (food, pharma) .
Intrinsic Safety (IS) Design
Certified for use in explosive atmospheres (ATEX/IECEx Group I/II), eliminating the need for external isolation barriers .
Temperature Compensation
Automatic correction for speed-of-sound variations due to ambient/process temperature changes, ensuring measurement accuracy .
Applications
Ideal for continuous level monitoring in:
Chemical Processing: Acid storage, solvent tanks.
Water/Wastewater: Reservoirs, clarifiers, sumps.
Food & Beverage: Hygienic liquid storage (e.g., syrups, dairy).
Bulk Solids: Silo inventory management (granules, powders) .
Installation & Maintenance
Mounting: Top-down installation with a clear line-of-sight to the material surface. Avoidance of obstacles (e.g., ladders, pipes) within the beam path is critical.
Calibration: Simplified via HART communicator or siemense SIMATIC PDM software.
Cleaning: PVDF sensor allows quick removal for CIP (Clean-in-Place) in hygienic industries .
Product Lifecycle & Successor
Discontinuation Notice: As of October 1, 2024, the LU180 (Order No.: 7ML5202-....) is phased out but remains orderable while stocks last .
Recommended Replacement: SITRANS Probe LU240 (Order No.: 7ML51..-.....-....)
Extended range: 12 m (40 ft).
Enhanced accuracy (±0.15%).
IO-Link communication for Industry 4.0 integration .
Advantages Over Competing Technologies
| Feature |
LU180 |
Typical Radar/Laser |
| Foam/Slurry Handling |
Excellent (ultrasonic penetration) |
Limited (signal absorption) |
| Cost |
Lower (no waveguide/window needed) |
Higher |
| Hazardous Areas |
Certified for Zone 0 |
Often restricted to Zone 1/2 |
Conclusion
The SITRANS LU180 exemplifies siemense' commitment to robust, cost-effective level instrumentation. Its combination of intrinsic safety, chemical resistance, and intelligent signal processing made it a versatile solution for harsh industrial environments. While phased out in favor of the technologically superior LU240, its legacy persists in applications demanding reliability under 5 m. For new installations, the LU240 is recommended to leverage modern diagnostics and extended capabilities .
KeRul (WeiFang) Automation Equipment Co., Ltd. is speciallzed in industrialautomation instrument development, production and sales, technical servicesand supporting equipment supply of specialized companies, The mainproducts are fow meters, level meters, temperature meters, pressuremeters, electrical meters, thermal meters, programmable controller(PLC), Dcs distributed control system, eight series of more than 1,000specifcations. its products and technologies are widely used in electrlcpower, metallurgy, petrochemical, environ. mental protection, plastics,food,l printing, textile, dyeing and other fields.
Our Services
OEM / ODM services
To meet the user diversified requirement, Holykell have established a set of customer service and technical support system with OEM / ODM order as the center, and responded and Handle the customer's requirements in a timely manner to ensure accurate delivery time and product quality.
Order services
Fastest reply:Professional sales engineers 7/24 online services
Payment terms:T/T ,Western union, Paypal, Credit Card, L/C others
Fast delivery: within 24 hours release the cargo (normal spec.), Customized 7-12 days after payment .
MAINTENANCE & AFTER-SALES SERVICES
Customer Feedback: Sales engineers and technical engineers will be one-on-one service for you to exclude all obstacles when use our sensors.
Warranty period: 12 months
Product life-long maintenance: Holykell can provide you with the maintenance of the whole life of the sensors
Q: How long will you give me the reply?
A: We will reply to you as soon as we see the information.
Q: What is the delivery time?
A: Our delivery time is within 3-7 days after we get your payment;
for large qty mass orders, the time should be confirmed again for you.
Q: How about your package?
A: Do not worry about the package, we have rich experience in packing, and all our package is wooden case package.
Q: How about the payment terms?
A: You can choose T/T.
Q: Do you provide samples?
A: Yes, we have materials in stock to help you to get the samples as soon as we can.
Q: What is the MOQ?
A:1PC.
Q: Can I get a lower price if I order large quantities?
A: Yes, cheaper prices with more bigger size orders.
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