Minicap FTC260, FTC262

Endress+Hauser

3

Function and system design

Measuring principle

Point Level Detection

A metal plate at the end of the probe, within the insulation, the integrated counter-electrode and the

surroundings combine to form the two electrodes of a capacitor.

If the probe is covered or free of process medium, the capacitance changes and the Minicap switches.

Active Build-up Compensation

The Minicap detects build-up on the probe and compensates for its effects so that the switch point is

always observed. The effects of build-up compensation depend on:

• the thickness of the buildup on the probe,

• the conductivity of the buildup,

• the sensitivity setting on the electronic insert.

Measuring System

Minicap is an electronic switch. The complete measuring system consists of:

• the Minicap FTC260 or FTC262

• a power supply and

• controllers, switching devices, signal transmitters (e.g. lamps, horns, PCS, PLC, etc.)

L00-FTC26xxx-14-06-xx-xx-001

Point level detection in silos containing solids

FTC262

FTC260

MAX

MIN

FTC260