KLD805 80G FM Radar Level Sensor
Introduction
The Difference In Application Of Radar Level Transmitter Frequency
Range
Dirty and polluted environment
With long-term use, dirt and pollutants accumulated on the antenna
will affect the strength and direction of the radar signal. For
high frequency signals, any dirt that covers the antenna will
absorb more energy, and the direction of the beam may change. This
results in a loss of signal strength. So, low-frequency and
medium-frequency technologies are more suitable.
Storage tanks with condensate and/or steam
Condensation and steam can cause reflections on product surfaces to
be masked by the “noise” of water droplets. This is more of a
problem for high frequency signals. So mid and low frequency
techniques are a better choice. Antennas with flat, horizontal
surfaces should always be avoided for condensation.
High steam and agitation
Be sure to choose the 80G millimeter-wave radar level meter. The
80G radar level meter has a high transmission frequency and has
good penetration and is not affected by steam. The 2° transmission
angle can effectively avoid the interference of the stirring blade.
The unique echo Tracking algorithm avoids reading multiple echoes
when the material level is high.
Applications with turbulence, waves and ripples
Waves and ripples are often found on the surface of process liquids
in large tanks. And this turbulence is especially detrimental to
high-frequency measurements. Low and mid frequency level
instruments emit longer wavelengths, making them perform better.
Foam application
Like dust and condensation, a layer of foam on top of the liquid
can absorb the radar signal, making accurate measurements more
difficult. Low frequencies work best with thick foams, such as
beer, molasses, or latex. For lighter foam, the mids perform well.
High frequency techniques should be avoided in foam applications.
KLD805 
| Medium: strong corrosive liquid, steam, foam, high temperature. and high pressure Measuring range: 0.1m~10/20/30/60/100m Process connection: flange ≥ DN80 Process temperature: -40～200℃ Process pressure: -0.1～2.5MPa Antenna size: 76mm lens antenna (according to flange size) Antenna material: PTFE/overall filling Accuracy: ±1mm Protection class: IP67 Center frequency: 80GHz Launch angle: 3° Power supply: two-wire /DC24V four-wire /DC12~24V four-wire /AC220V Casing: aluminum / plastic / stainless steel Signal output: two-wire /4...20mA/HART protocol four-wire 4...20mA/ RS485 Modbus |
Installation
1.Flange Installation
When using flange installation, the minimum distance between the
instrument and the tank wall should be 200mm.
① datum plane
② vessel center or axis of symmetry
2.Hoisting Installation
Installation Requirements
When installing the instrument, avoid installing it above the
material inlet, and try to avoid various objects that affect the
signal, such as stirring paddles, etc.
Under extremely complex working conditions, the instrument can work
normally if there is no obstacle in the area with a radius of 20cm
centered on the installation point.
Installation connection diagram:
The maximum installation spool height H max depends on the
installation spool diameter D and the size of the product launch
angle.
Too long installation connection will affect the radar performance.
Dimensions
Casing Dimension
Unit in mm:
Production:
