Radar Level Meter LKZLD Series

Introduction

The LKZLD Digital Radar Material Level/Liquid Level Meter is designed for accurate measurement in both corrosive and non-corrosive environments. It provides stable and precise readings even under complex conditions. The meter outputs a 4mA to 20mA DC signal for remote control and employs advanced microwave and Echo-tech echo processing technology, allowing it to adapt to various applications without harming the environment or human health. It is widely used in reservoirs, dams, coal plants, power plants, petrochemicals, and general industry.

Features

• Non-contact Measurement: Utilizes radar technology that avoids wear and pollution.

• Compact Antenna: Facilitates easy installation.

• Effective Reflection: Shorter wavelength enhances reflection on inclined solid surfaces.

• Small Measurement Blind Zone: Suitable for small tank measurements.

• Focused Beam Angle: Improves echo ability and reduces interference.

• Environmental Resilience: Negligible effects from corrosion, foam, atmospheric vapor, temperature, and pressure changes.

• High Signal-to-Noise Ratio: Provides reliable performance even in fluctuating conditions.

• High Frequency Operation: Ideal for measuring solid and low dielectric constant media.

Measuring Principle

The LKZLD Radar Level Meter operates by transmitting and receiving short microwave pulses. These pulses travel at the speed of light, and their travel time is converted into a level signal by the meter's electronic components. This method ensures stable and accurate measurements even in challenging environments. The microprocessor processes the reflected microwave pulses to identify the correct echo, achieving millimeter-level accuracy.

Specifications

Types

• Low Frequency Radar: LKZLD-A

• High Frequency Radar: LKZLD-B

• Guided Wave Radar: LKZLD-C

Measured Media

• Suitable for both solid and liquid.

Measuring Range

• LKZLD-A: 0m to 35m

• LKZLD-B: 0m to 70m

• LKZLD-C: 0m to 30m

Process Connection: Available in flange or thread connections.

Media Temperature: Ranges from -40℃ to 250℃.

Process Pressure: -0.1MPa to 4.0MPa.

Output Signal

• 4mA to 20mA DC/HART (2-wire)

• RS485/Modbus (4-wire) for high frequency radar

Field Display: 4-digit LCD, programmable.

Accuracy

• LKZLD-A: ±10mm

• LKZLD-B: ±3mm

• LKZLD-C: ±10mm

Repeatability: ±1mm.

Frequency

• LKZLD-A: 6GHz

• LKZLD-B: 26GHz

• LKZLD-C: 500MHz to 1.8GHz

Antenna: Varies by model, including horn and single probe types.

Power Supply: Options for 24V DC (2-wire) and 24V DC/220V AC (4-wire).

Housing: Aluminum or ABS with IP67 protection.

Applications

• Crude oil and light oil measurement

• Coke and carbon level measurement

• Water conservancy and natural water bodies

• Measurement of liquids and solid powders under complex conditions

Electrical Connection

• 24V DC (2-wire) Wiring Diagram

• 220V AC (4-wire) Wiring Diagram

• 24V DC RS485/Modbus Wiring Diagram

Order Guide

Type and Range

• A: Low frequency radar 6GHz [0 to 35m]

• B: High frequency radar 26GHz [0 to 70m]

• C: Guided wave radar 500MHz to 1.8GHz [0 to 30m]

Process Connection/Material: Various sizes and materials, including G1-1/2" A / SS 304, DN50 PN16 C / SS 304, etc.

Antenna or Probe Type/Material: Options include horn antenna and cable type probes, with different diameters and materials (SS 304, SS 316L).

Sealed/Process Temperature

• H: General type (-40 to 130℃)

• G: High-temp. type (-40 to 250℃)

Electronic Unit: Various configurations for 4 to 20mA output, RS485/Modbus, etc.

Housing/Protection

• L: Aluminum / IP67

• Q: ABS / IP65

Electrical Connection

• M: M 20 x 1.5 (Female)

• N: ½" NPT (Female)

Field Display/Programmed

• X: Without display

Y: With display

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