Radar Type Level Sensor for Solid, Non-contact, 4-20mA, 0-12M

Non-contact radar level sensor for non-contact power, granule, chunk and other solids measurement has maximum measuring range 0-20m, can transmit and output 4-20mA, HART or RS485 signal to remote control system. With its durable aluminum housing and rugged 304 stainless steel process connections, the radar level sensor is reliable in harsh industrial environments.

Specification

Note: * denotes optional parameters, you can select parameters in drop-down lists to finish your order. Some customizable parameters can't be selected from the lists directly, please contact customer service staff for further communication.

Dimensions (Unit: mm)

Installation

Wiring

Details

Tips: Radar level sensor troubleshooting

• The measurement data is inaccurate and there are deviations.
  The change trend of the actual liquid level and the measured data is consistent, but there is a certain deviation in the data. The actual distance of the empty tank in the container can be measured by the traditional rope test method. If the actual measurement data of the rope test method is consistent with the empty tank distance displayed by the radar level gauge, it is enough to prove that the instrument is not faulty.
• The measured data is obviously distorted.
  The fault is as follows: when the liquid level changes, the measurement data is constant; when the storage tank is empty or nearly full, the meter still displays an obvious false liquid level; and when the liquid level in the storage tank is about to be full, the meter displays bounce back to a low value. The reasons for such failures are as follows:
  1. The medium, water vapor, and environment in the storage tank contain impurities, resulting in dirt on the antenna.
  2. When the medium is emptied, the fixed components in the storage tank cause strong echoes.
  3. When the liquid level in the storage tank will be full, the meter displays a lower material level.

In view of the above situation, it is recommended to adjust the on-site distance and install the instrument at a higher position to eliminate the influence of multiple echoes.

• The measurement data fluctuates up and down.
  This is because there is a stirring device in the storage tank, which causes the liquid level to fluctuate up and down, or the temporary disturbance echo enhancement caused by blanking, which causes the measurement data to fluctuate up and down. At this time, it is recommended to improve the application parameters, or consider using a larger size antenna.
• Loss of waves
  There are usually two reasons for this kind of situation, one is due to the weak reflection ability of the liquid when measuring the liquid with low dielectric constant; The thick and thick foam layer causes the radar pulse signal to be diffused or absorbed, resulting in weak echoes or even "missing waves".