Particles sweep by the electrode's flat, non-protruding surface without impinging on or abrading it-extending electrode life. The non-protruding design virtually eliminates electrode breakage. Particles impinge on the upstream side of the spherical bulb, causing abrasion, calibration shift, and short life.
Self Cleaning
operation
This simple, but effective
system has no moving parts and requires no power. When the
electrode's flat measuring surface is exposed to turbulent
flow, the resulting scrubbing action provides a
self-cleaning effect in most applications. For the typical
spherical electrode, the downstream side is shielded from
the flow; coating forms on this dead flow area, causing
sluggish and drifting signals.
Viscous material
operation
Viscous materials flow by the
electrode's flat measuring surface in shear. Flow in shear
causes new material to uniformly displace the old material.
Having fresh material at the electrode's surface is
essential for measurement accuracy. Downstream side of a
spherical electrode is shielded from the flow; old sample
is not displaced-giving inaccurate readings.
