JWrada®-31 Radar Level Meter
The JWrada®-31 80GHz radar level meter features an integrated antenna, Bluetooth 5.0, and HART protocol. Ideal for pharmaceutical, food, energy, and hydrology industries, it ensures precise and maintenance-free liquid level measurement with advanced echo-learning technology for stable performance in complex environments.
JWrada®-31 is designed for conventional liquid and level measurement applications with compact process connections. It supports a miniature G3/4 process connection, making it suitable for small tanks and space-limited installations.
JWrada®-31 is widely used for liquid level measurement in industries such as pharmaceutical, food, energy, hydrology, and water management.
Radar level meters transmit high-frequency (80GHz) frequency-modulated continuous wave (FMCW) signals with linearly increasing frequency through the antenna and receive the reflected signals from the material surface. The transmitted FMCW signal is mixed with the reflected echo signal to generate an intermediate-frequency (IF) signal. By analyzing the frequency spectrum obtained through Fast Fourier Transform (FFT) processing of the IF signal, the signal propagation time (TDR) can be indirectly calculated. Combined with the speed of light, the distance between the radar antenna and the material surface is accurately determined, enabling precise level measurement.
To meet the requirements of different operating conditions, the JWrada® PRO Series 80GHz Radar Level Meters are available with explosion-proof, intrinsically safe, dust explosion-proof, and dust intrinsically safe certifications. The series includes multiple models designed for different applications:
- High-precision measurement with ±1 mm accuracy, 10 m measuring range, and no dead zone.
- G3/4 threaded connection, suitable for compact installation conditions.
- Flexible installation with low space requirements, ideal for applications with limited installation space.
- Suitable for liquid level measurement in explosion-proof areas, including pharmaceutical, food, energy, hydrology, and water management industries.
- Integrated with Bluetooth 5.0, the device enables wireless configuration, commissioning, and status monitoring via the “JW Tools” APP, supporting remote diagnostics and monitoring through cloud connectivity.
| Features | Economical 80GHz high-frequency radar level meter with wide applicability | |
| Application | For continuous non-contact liquid measurement in complex containers in pharmaceutical, food, energy, and water industries | |
| Measurement Parameter | Frequency | 80GHz |
| Measuring Range | 10m | |
| Beam Angle | 13° | |
| Accuracy | ±1mm | |
| Material | Antenna | 316L+PTFE |
| Housing | Aluminum alloy, Stainless Steel | |
| Installation | Process Connection | Threaded / Sanitary Tri-Clamp |
| Power Supply | Two-wire Four-wire Combined | 12~30V DC |
| Signal Output | Two-wire | 4～20mA / HART |
| Four-wire | RS485 / Modbus | |
| Combined | 4～20mA + RS485/Modbus | |
| Bluetooth | Support Bluetooth® v5.4 | |
| Operating Environment | Process Pressure | -1 – 30 bar |
| Process Temperature | -40℃～150℃ | |
| Ambient Temperature | -40℃～80℃ | |
| Storage Temperature | -40℃～80℃ | |
| Safety Certification | Ingress Protection | IP66/IP68 (0.2 bar) |
| Explosion-proof | Ex db llC T6 Gb Ex ia llC T6 Ga Ex tb lllC T80℃ Db Ex ia lllC T200 80℃ Da | |
| Cable | Cable Entry | M20×1.5, 1/2NPT |
- Widely used for non-contact level measurement in pharmaceutical vessels such as mixing tanks and reactors, meeting clean and hygienic requirements.
- Suitable for level monitoring in food industry applications, including blending tanks and fermentation tanks, ensuring safe food production.
- Applicable for level measurement in energy industry applications such as condensate tanks and lubricant tanks.
- Suitable for hydrology and water management applications, including dosing tanks and sedimentation tanks in water treatment systems
