guided wave radarIt has the advantages of low maintenance, high performance, high precision, high reliability, and long service life. Compared with contact instruments such as capacitors and heavy hammers, it has * * performance. The transmission of microwave signals is not affected by the atmosphere, so it can meet the requirements of harsh environments such as volatile gases, high temperature, high pressure, steam, vacuum, and high dust during the process. This product is suitable for harsh environments such as high temperature, high pressure, vacuum, steam, high dust, and volatile gases, and can continuously measure different material levels. The main technical indicators of this instrument reach or exceed similar products at home and abroad, and it is easy to install and debug. It can be used as a single unit or in a network, and can be widely used in industries such as metallurgy, building materials, energy, petrochemicals, water conservancy, and grain.

Technical Specifications:
Application: Liquid
Measurement range: 6 meters
Process connection: thread, flange
Process temperature: -40-250 ℃
Process pressure: -0.1-2MPa
Accuracy: ± 3mm
Frequency range: 100MHZ-1.8GHz
Explosion proof grade: Exib IIC T6 Gb
Protection level: IP67
Signal output: 4-20mA/HART (two-wire)

Characteristic description:

Features:

1. Any medium with a dielectric constant greater than or equal to 1.4 can be measured.
2. Generally used for measuring media with viscosity ≤ 500cst and not prone to adhesion.
3. The range of pole type radar can reach up to 6 meters.
4. It has strong inhibition ability to steam and foam, and the measurement is not affected.
5. For liquid materials with relatively low dielectric constants, a dual probe measurement method can be used to ensure good and accurate measurement accuracy.
Measuring principle
The product is a measuring instrument based on the principle of time travel. Radar waves run at the speed of light, and the running time can be converted into level signals through electronic components. The probe emits high-frequency pulses and propagates along the cable. When the pulses encounter the surface of the material, they are reflected back and received by the receiver inside the instrument, which converts the distance signal into a level signal.

input
The reflected pulse signal is transmitted along the cable to the electronic circuit of the instrument, and the microprocessor processes this signal to identify the echo generated by the microwave pulse on the surface of the material. The correct recognition of echo signals is completed by intelligent software, and the distance D from the material surface is proportional to the time travel T of the pulse: D=C × T/2, where C is the speed of light
Since the distance E of the empty tank is known, the level L is: L=E-D
output
By inputting the empty tank height E (=zero), full tank height F (=full range), and some application parameters to set, the application parameters will automatically adapt the instrument to the measurement environment. Corresponding to 4-20mA output.

Measuring range:
F - Measurement Range
E - Empty tank distance
B - Top blind spot
K - Distance from probe to tank wall
The top blind spot refers to the small distance between the high material surface of the material and the measurement reference point.
The bottom blind spot refers to a distance near the bottom of the cable that cannot be accurately measured.
The effective measurement distance is between the top blind spot and the bottom blind spot.

Installation location:
1. Try to stay away from the discharge and feed ports as much as possible.
2. For metal and plastic cans, they should not hit the wall throughout the entire range. If it is a metal tank, do not install the level gauge in the center of the tank.
3. It is recommended to install it at 1/4 of the diameter of the silo.
4. The distance between the cable probe or pole probe and the tank wall shall not be less than 30 centimeters.
5. The bottom of the probe is approximately 30mm away from the bottom of the tank.
6. The distance between the probe and the obstacle inside the tank shall not be less than 200mm.
If the bottom of the container is conical, the sensor can be installed
8. The center of the tank top allows for continuous measurement until the bottom of the tank.