With the following products our customer has solved this measurement task optimally:
Level Switch for Sulfuric acid
The customer needed a reliable high/low measurement for 20% sulfuric acid and sticky material. They had tried to use pressure measurement, but due to low range, rough washing condition and sticky material the measurement was unstable. They had tried capacitive probe, but it was challenge to have the correct switching point due to the sticky material.
The solution in this sulfuric acid application was the RF 3100 with a fully PFA coating on all wetted parts. The coating protects the stainless steel probe against corrosion. The advantage of this probe is the electronic with digital display, which shows the actual measured capacitance at the probe. It makes it possible to see the difference in pF with clean uncovered condition, covered condition and uncovered with sticky material. So it was possible to set a reliable switch point between covered and uncovered probe.
RF3100 Standard Version
Full, Demand, Empty Detector
Shaft is selectable as
- Rod version (vertically, horizontally and oblique installation)
- Cable version (vertical installation)
Both versions are available as remote version (i.e. for use in applications/processes with heavy vibration)