Probe for monitoring liquid with protection against leakage

Probe for monitoring liquid in a container, comprising

• a probe housing to be mounted on the container, and said probe housing having an interior space;
• the interior space of the probe housing having a first chamber close to the container and a second chamber remote from the container, a separation wall present between said first chamber and said second chamber, and said separation wall being provided with a passage opening;
• a sensor electrode extending into the container, and an electrical conductor connected to said sensor electrode and extending from the first chamber through the passage opening and into the second chamber;
• an insulation cover surrounding the sensor electrode in the container and supported sealingly on the probe housing;
• the wall of the first chamber close to the container, including the separation wall, being pressure-proof;
• and
• a closing part for the passage opening being arranged in the first chamber, said closing part being axially movable against the separation wall and, with the probe intact, assuming a position remote from the passage opening, whereas, under the influence of the inflow of medium from the container, it closes the passage opening pressure-tight.

Probe for monitoring liquid in a container, comprising

• a probe housing to be mounted on the container, and said probe housing having an interior space;
• the interior space of the probe housing having a first chamber close to the container and a second chamber remote from the container, a separation wall present between said first chamber and said second chamber, and said separation wall being provided with a passage opening;
• a sensor electrode extending into the container and extending from the first chamber through the passage opening and into the second chamber;
• an insulation cover surrounding the sensor electrode in the container and supported sealingly on the probe housing;
• the wall of the first chamber close to the container, including the separation wall, being pressure-proof;
• a closing element made of insulation material and closing the passage opening pressure tight is mounted on the separation wall;
• and
• the closing element comprises a ceramic sleeve.

Probe for monitoring liquid in a container, comprising

• a probe housing to be mounted on the container, and said probe housing having an interior space;
• the interior space of the probe housing having a first chamber close to the container and a second chamber remote from the container, a separation wall present between said first chamber and said second chamber, and said separation wall being provided with a passage opening;
• a sensor electrode extending into the container, and an electrical conductor connected to said sensor electrode and extending from the first chamber through the passage opening and into the second chamber;
• an insulation cover surrounding the sensor electrode in the container and supported sealingly on the probe housing;
• the wall of the first chamber close to the container, including the separation wall, being pressure-proof;
• a closing element made of insulation material and closing the passage opening pressure tight is mounted on the separation wall, said closing element being penetrated by the electrical conductor extending between the two chambers;
• and
• the closing element comprises a ceramic sleeve.