latest radar type level transmitter factory for work

1.Product Overview

The KDD-FMF series sensor is a 120G frequency modulation radar type level measuring instrument with a measuring distance of up to 30 meters. The antenna is further optimized, and the new and fast microprocessor can perform higher-speed signal analysis and processing, so that the meter can be used for measuring high temperature and high pressure and other environmental liquids.

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2.The Product Principle

The general principle of the FM continuous wave radar level gauge is that the radar emits electromagnetic waves on the top of the tank, and the electromagnetic waves are received by the radar after being reflected by the medium. The frequency difference δ f between the received signal and the transmitted signal is proportional to the distance R from the surface of the medium. : R= C (speed) *δ f (frequency difference) /2/K (frequency modulation slope). Because the speed of light C and the frequency modulation slope K are known, the frequency difference δ f can be estimated to obtain the distance R of the material surface at the radar installation position, and then through the known total height of the tank, subtract the spatial distance from the radar to the material surface ( Referred to as the air height), the height of the material level is obtained.

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3.Protection Grade

This meter fully meets the requirements of protection class IP66/67, please ensure the waterproofness of the cable sealing head. As shown:

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How to ensure that the installation meets the requirements of IP67:

Make sure that the sealing head is not damaged.

Make sure that the cable is not damaged.

Make sure that the cables used meet the requirements of the electrical connection specifications.

Before entering the electrical interface, bend the cable downward to ensure that water does not flow into the housing, see ①

Please tighten the cable sealing head, see ②

Please block the unused electrical interfaces with blind plugs, see ③

4.Product Specification

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Measuring medium: solid

Measuring range: 0.3m~120m

Process connection: flange ≥DN80

Process temperature: -40～110℃

Process pressure: -0.1～0.3MPa

Precision: ±5mm

Protection level: IP67

Frequency range: 120GHz

Power supply: two-wire system (DC24V)/four-wire system (DC12V~24V)/four-wire system (AC220V)

Explosion-proof grade: Exia ⅡC T6 Ga / Exd IIC T6 Gb

Housing: Aluminum/Plastic/Stainless Steel

Signal output: two-wire system 4...20mA/HART protocol/four-wire system 4...20mA /RS485 Modbus

5.Appearance of Size

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6.Technical Parameters

Process connection	Flange
Material	316 stainless steel, PP
Shell	Seal between housing and housing	Silicone Rubber
	Shell window	Polycarbonate
	Ground terminal	Stainless steel
Supply voltage	four-wire system	Standard	（12~24）V DC
		Power consumption	max80mA DC24V/2W
		Allow ripple	＜100Hz	Uss＜1V
			（100~100K）Hz	Uss＜10mV
	Shell	(198~242)V AC	four-wire system
		100V AC	four-wire system
Cable parameters	Cable entry/plug	1 M20x1.5 cable entry
		1 blind plug M20×15
	Ground terminal	Conductor cross section 2.5mm2
Output parameters	output signal	（4~20）mA/RS485Modbus
	Resolution	1mm
	Fault signal	Current output unchanged; 20.5mA; 22mA; 3.9mA
	Integration time	(0~20)s, adjustable
Blind spot	0.1m/0.2m/0.3m
Maximum measurement interval	150 meters
Measuring distance	About 1 second (depending on parameter settings)
Adjust the time	About 1 second (depending on parameter settings)
Adjust time, working storage and transportation temperature	（-40~80）℃
Process temperature	KDD-FMF11	-40~80℃
	KDD-FMF12	-40~110℃
	KDD-FMF13	-40~110℃
	KDD-FMF15	-40~200℃
	KDD-FMF21	-40~110℃
Relative humidity	＜95%
pressure	Max2.5MPa
Shockproof	Mechanical vibration 10m/s2, (10~150)Hz

7.Instrument Linearity

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8.Installation Requirements

When installing the instrument, avoid installing it above the inlet, and try to avoid all kinds of objects that affect the signal, such as stirring paddles, etc.

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● Under extremely complicated working conditions, the instrument can work normally if there is no obstacle in the area of 20cm radius with the radar installation point as the center.

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The production of Kaidi Sensors radar type level transmitter consists of two major steps. The first step is the extraction of raw materials; the second step is the grinding into pre-treated building materials.

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Kaidi Sensors radar type level transmitter has undergone a series of tests for performance such as tear strength, color consistency, and color resistance to light.

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From the selection of raw material of Kaidi Sensors radar type level transmitter to burnishing, body repairing, glazing, and sintering, quality management is conducted throughout every stage.

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Kaidi Sensors radar type level transmitter is well designed. The shape of this product is carried out with the help of some advanced design tools such as the 3D-CAD design tool.

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All primary frame components of Kaidi Sensors radar type level transmitter are manufactured by CNC machine. This advanced production methods offer a degree of precision manufacturing to meet the standards in the tent industry.

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While strictly controlling product quality, the company strives to save production costs and create the greatest economic benefits with the least production costs, so that the radar type level transmitter produced has a price advantage in the market.

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