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Technical Specifications
| Performance Parameters | |
| Measured Variable | Level |
| Measuring Range | 0 ~ 35 m |
| Dead Zone (Blind Zone) | 0.15 m |
| Accuracy | ±3 mm |
| Beam Angle | 3° / 8° |
| Transmit Frequency | 76 GHz ~ 81 GHz |
| Output | |
| Analog Output | 4 ~ 20 mA (current loop) |
| Digital Communication | RS485 interface, MODBUS protocol HART |
| Wireless Communication | Bluetooth |
| Electrical Specifications | |
| Power Supply | Supply Voltage: 18 ~ 28 VDC |
| Power Consumption: Max. 1 W (4-wire version) | |
| Electrical Connection | M20 × 1.5 cable gland |
| Recommended Cable | AWG 18 or 0.75 mm² |
| Process Conditions | |
| Dielectric Constant | ＞2 |
| Process Pressure | -0.1 ~ 2 MPa |
| Medium Temperature | -40 ~ +200 °C |
| Ambient Conditions | |
| Operating Environment | Temperature: -20 ~ +65 °C |
| Humidity: ≤ 95% RH | |
| Storage Environment | Temperature: -40 ~ +60 °C |
| Humidity: ≤ 90% RH | |
| Ingress Protection | IP67 |
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Applications
Tailored for challenging bulk solids and process liquids:
- Powders, granules, pellets (cement, coal, grain, lime, ores, fly ash, fertilizers, plastics)
- High-dust silos, bunkers, hoppers, storage bins
- High-temperature processes & vessels (up to +200°C)
- Low dielectric or angled/sloped materials
- Chemical tanks with vapors, steam, or agitation
- Industries: cement & building materials, mining & aggregates, power generation, food & grain handling, chemicals, metallurgy
Replaces lower-frequency radars, ultrasonics, or invasive sensors in dust-laden, hot, or interference-heavy environments, ensuring stable, low-maintenance level monitoring for inventory, process optimization, and safety.
Why Choose the W500-E 80G Radar?
Combining millimeter-wave precision, unmatched environmental toughness, and modern Bluetooth-enabled ease of use, the W500-E delivers reliable non-contact level measurement where traditional technologies fall short – perfect for solids-focused and harsh industrial demands.
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Measuring principle
Operates on Frequency Modulated Continuous Wave (FMCW):
The radar emits a continuous, linearly frequency-modulated electromagnetic wave from the top of the vessel. The wave reflects off the medium surface and returns to the receiver. The frequency difference (δf) between transmitted and received signals is proportional to the distance (R) to the surface:
R = C × δf / (2 × K)
(C = speed of light, K = known modulation slope).
The material level height (L) is then calculated as: L = H – R
(where H is the known installation height/total vessel height, R is the empty distance/air gap).
This FMCW method provides stable, accurate readings independent of medium density, dielectric constant, temperature, or pressure variations.
