SITRANS LR400 Radar Level Transmitter

Level Sensors | Radar Level Transmitters

SPECIFICATION   |   CAD DRAWING

---

---

•   Easy installation
•   Low Maintenance
•   Built-in diagnostics

THIS PRODUCT HAS BEEN DISCONTINUED. PLEASE CONTACT OUR OFFICES ON 01722 442 307 FOR ALTERNATIVE PRODUCTS.

The SITRANS LR400 is a 4-wire, 24 GHz FMCW radar level transmitter. It is designed for continuous monitoring of liquids and slurries in storage and process vessels including high temperature and high pressure, to a range of 50 m.  It provides excellent results on low dielectric media and for applications that require explosion proof protection.
 
The SITRANS LR400 features a robust enclosure, flange and horn components. It is virtually unaffected by atmospheric or temperature conditions within the vessel.
 
Features of the SITRANS LR400 include:
 

• Easy installation and commissioning, low maintenance
• Self-calibration with internal reference
• Built-in diagnostics
• Auto-False Echo Suppression and advanced echo processing
• 24 GHz and high signal-to-noise ratio
• Communication using HART® or PROFIBUS PA
• Programming using infrared Intrinsically Safe handheld programmer or with SIMATIC PDM or HART handheld device

 
Other applications:
​ 

• Long-range liquid
• Slurry applications
• High temperature or high pressure
• Llow dielectric media, such as LPG (liquid, petroleum, gas)

SITRANS LR400
Transmitter

Brand: Siemens

Part Ref: 7ML5421
IWN: LEV-434431

Category: Level Sensors, Radar Level Transmitters

SITRANS LR400 is a 4-wire, 24 GHz FMCW radar level transmitter for continuous monitoring of liquids and slurries in storage and process vessels including high temperature and high pressure, to a range of 50 m; ideal for low dielectric media.
 

Specification Detail for the SITRANS LR400:

Range 
50m

Material Body
Die-cast aluminum, painted

Material density 
NA

Accuracy
± 0.02 mA

Operating Temp Range 
-40 to 200°C

​Pressure Range 
Max 40Bar g

Outputs & Comms  
HART 4..20mA, Profibus P – Per IEC
61158- 0mA
 

Location 
Indoor/outdoor

Fluid Type 
Liquid/solids

Applicable Liquids 
NA
​

Power
100 … 230 V AC ± 15 % (50/60 Hz), 6 W (12 VA)
24 V DC +25/-20 %, 6 W (optional)

Approvals 
CSA,FM , CE, CSA, C-TICK, ATEX II , IECex, FCC, INMETRO

Connection Type
Universal Flange, DN/PN, ASME, JIS  – 3″ – 6″ (80mm-150mm)
​ 

Top Companion Products

Looking for help with flow rate, pipe diameter or flow velocity?
Our flow rate calculator will provide the answer.

Flow Rate Calculator

OUR PARTNERS

OUR CUSTOMERS