Radar level meter in the use of precautions
Radar level meter is a measuring instrument based on the principle of time travel. Radar waves travel at the speed of light, and the running time can be converted into level signals through electronic components. The probe emits a high-frequency pulse that travels along the cable probe, and when the pulse hits the surface of the material, it is reflected back to be received by the receiver inside the meter, and the distance signal is converted into a level signal.
Radar level meter in use need to pay attention to:
1. The measurement range of the radar level meter should be calculated from the time it touches the beam, but if the bottom of the tank of the radar level meter is concave, it should be calculated from its low point.
2, when using, pay attention to its dielectric electrical constant, if the medium is low dielectric constant, when it is at a low liquid level, set the zero point at a low height of C, so that better measurement accuracy can be obtained.
3, in the measurement to consider the impact of corrosion and adhesion, the final value of the measurement range should be at least 100mm from the tip of the antenna.
4, the antenna will have an impact on the small measurement range.
5, set a safe distance attached to the blind area, can play an overspill protection role.
