KWL803 Radar Level Sensor – 40m Range, IP68

1.Introduction

1.1 Product Overview

KWL803 radar level sensor conforms to the standard specifications outlined in national standard DB50/T 826-2017 for level meters. Its core component is designed with a fully sealed IP68 waterproofing.
The maximum measurement range of the product extends up to 40 meters, with a minimal blind spot of less than 6 cms.
Due to its higher frequency and broader bandwidth, it achieves superior accuracy. Additionally, the product includes a fixed bracket for installation.

KWL803 Radar Level Sensor Installation

1.2 Detection principle

Radar level sensor is based on the principle of time domain reflection (TDR). The electromagnetic pulse propagates along the cable or probe with the speed of light. When it meets the surface of the measured medium, part of the pulse of the radar level meter is reflected to form an echo return to the pulse transmitter along the same path, and the distance between the transmitter and the surface of the measured medium is In direct proportion as the propagation time of the pulse, hence the height of the   level is calculated.

2.Feature   

  • Based on the self-developed CMOS millimeter-wave RF chip
  • More compact RF architecture
  • Higher signal-to-noise ratio
  • Smaller dead zone
  • 5GHz working bandwidth
  • Higher measurement resolution and measurement accuracy
  • Less influence by the interference in the installation environment
  • More convenient of installation and
  • Modern design of integrated flat antenna

3.Dimension
KWL803 dimension 3 - Radar Level Sensor

4.Model Selection

KWL803 A ABS casing
B Stainless steel 304 casing
C Semi-PTFE casing
20mA2 2 wire 4-20mA Output
20mA3 3 wire 4-20mA Output
485 RS485
232 RS232
45 RJ45
TTL TTL
KWL803 A 20mA2 Example: KWL803-A-20mA2
ModelKWL803
CommunicationRS485RS232RJ454-20mA Three-wire4-20mA Two-wireTTL
Average Current18mA/12V3.4mA/24V10mA/3.3V
Acquisition Frequency200ms/Configurable1500ms200ms/Configurable
Pulse Current100mA/10ms40mA/24V400mA/10ms
Voltage Range9-24V24V3-3.3V
Transmission Frequency80 GHz
Measurement Accuracy±2mm
Measuring Range0.05m-40m
Resolution1mm
Beam Angle±2.75°
Debugging MethodHost computer
Communication ProtocolModbus/Text protocol
Protection RatingIP68
Operating Humidity0-95%
Operating Temperature-40℃~75℃
Appearance MaterialBlack ABS, Stainless steel, PTFE
Cable Length5 meters [RJ45 cable 0.5 meters]
KWL803 Radar Level Sensor Module Introduction & Wiring Guide

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