1 Measurement principle
The principle of the frequency modulated continuous wave radar level meter 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 δf between the received signal and the transmitted signal is proportional to the distance R to the surface of the medium: R = C (speed) * δf (frequency difference) / 2 / K (frequency modulation slope). Because the speed of light C and the frequency modulation slope K are known, the frequency difference δf can be calculated to obtain the distance R from the radar installation position to the material surface. Then, the known total height of the tank is subtracted from the spatial distance from the radar to the material surface (referred to as the empty height) to obtain the height of the material level.

2 Product Features
1. The measurement accuracy of millimeter wave radar can reach ±1mm, and the measurement blind area is 10-50mm.
2. Smaller antenna size to meet the measurement of more working conditions.
3. A variety of lens antennas, 3° emission angle, more concentrated energy, stronger echo signal, higher reliability than other radar products under the same industrial and mining conditions.
4. It has stronger penetration and can be used normally even in the presence of adhesion and condensation.

Measurement principle

frequency range

Maximum action distance

Measurement accuracy

Output form

Communication method

Power supply range

Antenna form

process connector

process pressure

process temperature

ambient storage temperature

shell

Seal between housing and housing cover

shell window

Ground terminal

Cable entry/plug

Terminal block

FM radar

W-band [76-81GHz]

Maximum 120 meters

±1mm

4~20mA, RS-485

HART, MODBUS

24±6V

Horn or lens antenna

Flange from DN50, thread from G3/4

-1.20 bar

-40~+200°C

-40~+80°C

Cast aluminum/stainless steel

silicone rubber

polycarbonate

Stainless steel

1 blind plug M20×1.5/1 M20x1.5 cable entry

The cross section of the conductor is not more than 2.5 mm²

FAQ
1. Q: What information need to be provided to choose the suitable model?
A: Application field, Nominal pressure ,Medium & medium temperture , Power supply , Output,
Flow range, Accuracy, Connection and other parameters.
2. Q: Are you a trade company or a manufacturer?
A: We are an ISO approved manufacturer specialized in level and flow measuring instruments.
OEM & ODM service are available. Welcome to visit us in China.
3. Q: What is your MOQ?
A: To start our cooperation, sample order is acceptable.
4. Q: What is your delivery date for the Intelligent Mini Micro Turbine Fuel Oil Diesel Flow Meter?
A: The delivery date is about 3-15 working days after receipt of payment.
5. Q: What is your payment terms?
A: We support T/T, PayPal ,Western Union.
For mass production order, it is 30% deposit in advance and 70% balance before shipment.
6. Q: Do you have a warranty for the Flow Meter?
A: Yes, we have the warranty of 12 months.

.