1
Non contact measuring
Corrosive and toxic liquid, hydrocarbons,
slurries
Not affected by specific gravity, pressure,
temperature, viscosity, foam, and dust
5 digits LCM display
Indicate signal wave inside the silo.
Selection of Different Measurement unit(m,
cm, mm, inch, ft, %, mA)
Measuring distance and actual level.
Language selection of traditional Chinese,
simplified Chinese, English.
4-20mA/ 4 lead wires
Modbus RS-485 to enhance isolation and
easy for remote control.
CE standards for isolation(EFT 2000V, B class
or better)
Suitable for mid-range signal
4mA, 20mA output
Set functions to the continuous measuring
device via FAS software.
Isolated circuit design.
10GHz JFR1 series could measure liquid
material.
26GHz JFR2 series could measure all kinds
of material.
FEATURES
PRINCIPLE
FMCW Radar level transmitter is a non contact
measuring device, which is suitable for high temp.,
high pressure, and corrosive applications. It is
easy to install and free of maintenance, especially
for the high accuracy requirement environment.
Design formula
High voltage : IEC60947-2
Isolated resistance : IEC60092-504
Power supply change : IEC60092-504
Power supply failure : IEC60092-504
Electrical burst testing : IEC61000-4-4
Voltage DIPS : IEC61000-4-11
Humidity : IEC60068-2-30
High/Low temperature test : IEC60068-2-38
IP protection rating : IEC60529
TEST STANDARDS
LINEARITY DIAGRAM
PRODUCT INTRODUCTION
FMCW radar adopts a high frequency signal,
which is emitted via an antenna and swipe
frequency increment by 0.5GHz during the
measurement, reflected by the target surface and
received at a time delay. The frequency difference,
which is calculated from the transmitting frequency
and the received frequency, which is directly
proportional to the measured distance (or material
surface).
The frequency difference then is processed by
Fast Fourier Transformation (FFT) to identify the
signal in Intermedium Frequency (IF). This FMCW
radar is innate with signal / noise enhancement
and filtering of echo-back via Phase-Lock Loop
(PLL) circuit that is the best solution for complex
environment and high accuracy measurement.
Accuracy
Distance to flange
0
-2
-4
-6
-8
-10
-12
12
10
8
6
4
2
cm
0.5m 5m 15m 20m
A0.2%
A0.2%
A3mm
A5mm
A10mm
A20mm
A0.4%
A0.4%
A30mm
A0.4%
-14
-16
