Advantages of FMCW Radar Technology
High Resolution — Beat frequency is directly proportional to target distance, enabling precise position measurement; resolution improves further with wider sweep bandwidth.
Low Transmit Power — Continuous-wave signals at low average power reduce energy consumption and electromagnetic interference, improving overall safety and compatibility.
No Minimum Range Blind Zone — Simultaneous transmit/receive eliminates the minimum-range limitation typical of pulse radar, enabling reliable detection of very close targets.
Strong Anti-Interference Capability — High resistance to environmental noise and clutter, with reliable detection even in complex electromagnetic environments.
Robust in Various Environments — Stable operation under heavy rain, fog, dust, and temperature extremes with minimal performance degradation.
Ease of Miniaturization & Integration — Simpler architecture than pulse radar, suitable for a wide range of platforms and applications.
Non-Contact Measurement — Measurements unaffected by medium properties, enabling safe, accurate measurement of high-temperature, cryogenic and corrosive substances.
Structure
- Electrical compartment
- Housing
- LCD local display
- Process connection
- Antenna
- Cable entry
Features
Non-contact Measurement
Ultra-High Reliability & Accuracy (±1 mm)
Quick & Easy Installation
Advanced Signal Processing for challenging environments
Modular Design (Detachable Radar Head/Antenna)
Standalone or Integrated System compatible with tank farm management
Remote Configuration, Debugging & Monitoring
Military-Grade Hardware with proprietary IP
Application
The BJLM-R850 Radar Level Transmitter is built on military-grade microwave radar technology and high-resolution frequency analysis, delivering metrology-grade accuracy and outstanding long-term stability. It is ideal for non-contact level measurement of liquids, slurries, and bulk solids, and is engineered to operate reliably in harsh conditions, including extreme temperatures, high pressure, steam, and heavy vapors.
- Refineries and tank farms
- Chemical and petrochemical industry
- Water treatment and sewage treatment industry
- Liquefied petroleum gas storage
- Pharmaceutical industry
- Hydropower generation and dams
- Power stations
- Food and beverage industry
- Cement, powder, wood chips, and other solid material applications
Technical Datasheet
Measuring Range
| Max Range | 30 m (in the case where antenna or guided pipe installed) |
Accuracy
| Max Range | ± 1 mm |
| Resolution | 0.2 mm |
Frequency
| Center frequency | 120 GHz |
| Sweep bandwidth | 20 GHz |
Running Environment
| Ambient Temperature | -40°C ~ +70°C |
| Working Pressure | 5 bar / 0.5 MPa for ambient pressure; 25 bar / 2.5 MPa for high pressure |
| Humidity | 90% |
Communication
| Output signal | MODBUS RS485, HART / 4~20mA, Relay NO/NC (2 ports) |
Power Supply
| Voltage | DC 24~48V, < 8W |
Cable Entry
| Cable entry | 4 pieces NPT 1/2 |
Materials
| Casing | Aluminium |
Explosion Proof Rating
| Ingress Protection | IP 68 |
| Hazardous Rating | Ex db ⅡC T6 Gb |
Wiring Diagram
a: Power supply | b: Modbus output | c: 4~20mA output / HART output | d: Relay output 1 | e: Relay output 2
