초록 ▼

A probe for monitoring a liquid level has a one-piece insulation sheath extended within the probe casing and positioned far beyond the end of a contact pressure spring that is removed from the liquid. This contact pressure spring has an associated spring abutment formed by either a sleeve or a cap s

A probe for monitoring a liquid level has a one-piece insulation sheath extended within the probe casing and positioned far beyond the end of a contact pressure spring that is removed from the liquid. This contact pressure spring has an associated spring abutment formed by either a sleeve or a cap surrounding the insulation sheath. In the probe casing, lengthy sections of insulation are present such that functional interferences are avoided. The probe casing has large-dimensioned ventilation apertures for preventing moisture films.

대표청구항 ▼

Probe for monitoring a liquid level comprising: a probe casing having a pass-through bore with a sealing surface tapering toward an end of the probe removed from the liquid to be monitored; a sensor electrode extending through the pass-through bore and having a counter-surface tapering toward the en

Probe for monitoring a liquid level comprising: a probe casing having a pass-through bore with a sealing surface tapering toward an end of the probe removed from the liquid to be monitored; a sensor electrode extending through the pass-through bore and having a counter-surface tapering toward the end of the probe removed from the liquid; an insulation sheath jacketing the sensor electrode, said sheath extending from the zone of the sensor electrode on the liquid side through the pass-through bore and into the casing of the probe; a first abutment connected in the probe casing on the casing side; a second abutment connected in the probe casing with the sensor electrode and positioned a spaced distance from the first abutment; a contact pressure spring engaging with one end close to the liquid the first abutment and engaging with another end removed from the liquid the second abutment; a supporting surface tapering toward the end close to the liquid is arranged on the sensor electrode in the probe casing; the insulation sheath extending in the probe casing from the pass-through bore to and beyond the supporting surface; and the second abutment has a pass-through bore with a supporting surface tapering toward the end close to the liquid, said supporting surface enveloping the insulation sheath in the zone of the supporting surface of the sensor electrode.