NRD80 Series 80G Intelligent Frequency Modulated Radar Level Transmitter

Overview

The NDR80 series of radar level gauges are FMCW(Frequency Modulated Continuous Wave)radar products operating at 76-81GHz, supporting both 4-wire and 2-wire applications. With amaximum range of up to 120m and a blind zone as small as 8cm for some models, these devices areparticularly suitable for solid applications. Due to their higher operating frequency and shorterwavelength, they offer unique advantages in high-dust and harsh temperature environments (up to +200C). The instruments are available with either flange or threaded mounting options, ensuringeasy and convenient installation.

Features

Frequency-modulated radar level gauge is a type of frequency-modulated radar-based level measurement instrument, featuring the following characteristics.

• Utilize a transmission frequency as high as 76-81 GHz

• High frequency and signal-to-noise ratio make low dielectric constant media the best choice.

• Withasmallbeamangleconcentratedenergyandstrongeranti-interferenceabilityitgreatly improves the measurement accuracy and reliability.

• The measurement blind zone is smaller, and excellent results can be achieved even for small tanks.

• With a shorter wavelength, it performs better in measuring the level of small particle media and inclined medium surfaces.

• Highly sensitive measurement, fast refresh rate, small antenna size, easy installation, sturdy and durable, maintenance-free

• Non-contact measurement, no wear, no pollution, can measure the level of liquid and solid media.

• It is almost unaffected by complex working conditions such as temperature, pressure, water vapor, foam and dust.

• The technology of two-wire loop power supply is adopted, with the power supply voltage and output signal transmitted through a two-core wire

• Cable transmission, cost-saving

• Equipped with advanced microprocessors and unique echo processing technology, it can be applied to various complex working conditions.

• Low transmission power, can be installed in various metal and non-metal containers, and is safe for the human environment.

• There was no harm in any of the circumstances.

• The display screen with buttons enables convenient setting of the instrument parameters.  

Principle

The radar level antenna emits a narrow microwave pulse, which is transmitted downward through the antenna. After the microwave contacts the surface of the measured medium, it is reflected back and received by the antenna system again. The signal is then transmitted to the electronic circuitry section and automatically converted into a level signal (because the speed of microwave propagation is extremely fast, the time it takes for the electromagnetic wave to reach the target and be reflected back to the receiver is almost instantaneous).

A Range Setting B Low Limit Adjustment C High Limit Adjustment D Dead Zone Rang

reference surface for measurement is: the bottom surface of the thread or the sealing surface of the flange.

When using a radar level gauge, it is essential to ensure that the highest material level does not enter the measurement blind zone (the area indicated by D in the figure).

Technical indicators

General data

Technical parameters

Product Categories

NRD-80CD Intelligent Frequency Modulated Radar Level Transmitter

NRD-80CX Intelligent Frequency Modulated Radar Level Transmitter

NRD-80CD-W Intelligent Frequency Modulation Radar Level Gauge

NRD-80FD-P Intelligent Frequency Modulated Radar Level Transmitter

NRD-80FX-P Intelligent Frequency Modulated Radar LevelTransmitter

NRD-80FD-PH Intelligent Frequenfran Modulated Radar Level