Question 1

What is guided wave radar level transmitter?

Accepted Answer

Guided wave radar level transmitter is a type of level measurement device that uses high frequency radar pulses guided along a probe to determine the level of a liquid or solid in a container. The radar pulses are reflected back to the transmitter by the liquid or solid. And the time delay between the transmission and reception of the pulses is used to calculate the level. The probe can be inserted into the container or mounted externally. And is suitable for use in a wide range of industries, including oil and gas, chemical processing, and food and beverage.

Question 2

What is the difference between radar and guided wave radar level transmitter?

Accepted Answer

The main difference between radar and guided wave radar level transmitters lies in the way they transmit and receive the radar signal.

Traditional radar level transmitters use free space transmission. Where the radar signal is transmitted through the air to the liquid or solid surface, and then reflected back to the receiver. These types of radar level transmitters are effective for measuring level in large tanks and vessels, and for detecting the presence of liquids or solids.

Guided wave radar level transmitters, on the other hand, use a probe or cable that is inserted into the liquid or solid material being measured. The radar signal is guided along the probe or cable, and reflected back to the transmitter by the surface of the material.

Guided wave radar level transmitters are typically used for measuring level in smaller tanks or vessels, or in situations where the material being measured has low reflectivity or is highly viscous.

Overall, both types of level transmitters use radar technology to measure the level of liquid or solid materials. But they differ in the way the radar signal is transmitted and received.

Question 3

What is the range of guided wave radar level transmitter?

Accepted Answer

The range of a guided wave radar level transmitter can vary depending on the specific device and its application. But generally ranges from a few centimeters to over 30 meters (100 feet). The range of the transmitter is determined by the length of the probe or antenna used. The dielectric constant of the material being measured. And the strength of the transmitted signal. In some cases, the range of the transmitter can be extended through the use of specialized probes or antennas or by using multiple devices in tandem.

Question 4

How do you calibrate a radar level transmitter?

Accepted Answer

Because the general testing distance of radar level transmitters is usually 2-10m or more than 10m. It is difficult to simulate the distance required for calibration in the laboratory. Therefore, radar level gauges mostly use online calibration. However, on-line routine calibration must use on-site process conditions. During the calibration period, on-site process equipment-storage tanks or reaction tanks must be shut down, which seriously affects on-site process production. At the same time, the on-site liquid level change is affected by the process conditions and the stabilization time is too long, so the online routine calibration time is usually longer.
Extended reading: Applications of Radar Corrosive Liquid Chemical Level Sensor

Year: 2020

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