If coating forms on the PROBE the measured signal will be weaker. If the MEDIA itself has a high dielectric constant some coating is not much concern but if it is a low DC media coating can be a problem.

If a twin probe or a coaxial probe is used the coating can cause bridging between the TWO leads and this will create false echoes that can lead the transmitter to interpret a bridge as the ACTUAL level.

Single lead is recommended in coating applications. Coating can cause an accuracy influence. Maximum error DUE to coating is 1-10% depending on probe type, dielectric constant, coating thickness and coating height above product surface.

If coating forms on the probe the measured signal will be weaker. If the media itself has a high dielectric constant some coating is not much concern but if it is a low DC media coating can be a problem.

If a twin probe or a coaxial probe is used the coating can cause bridging between the two leads and this will create false echoes that can lead the transmitter to interpret a bridge as the actual level.

Single lead is recommended in coating applications. Coating can cause an accuracy influence. Maximum error due to coating is 1-10% depending on probe type, dielectric constant, coating thickness and coating height above product surface.