초록 ▼

A modular probe that is used for determining levels in a process material container, bins, pipes, using capacitance, micro impulse radar, or other types of signals, and which has a self contained pressure seal in the probe. The probe mounts to a connector that has an explosion proof barrier. The con

A modular probe that is used for determining levels in a process material container, bins, pipes, using capacitance, micro impulse radar, or other types of signals, and which has a self contained pressure seal in the probe. The probe mounts to a connector that has an explosion proof barrier. The connector in turn supports a transmitter housing, which can be made explosion proof as well. The probe is coupled to the connector in a manner so that they can be easily separated and replaced without altering the explosion proof barrier. An independent seal on the probe itself permits the probe to be installed in a tank prior to the transmitter installation, and the transmitter may be uncoupled from the connector and replaced with a new transmitter without affecting the explosion proof portion of the assembly. The transmitter housing may also be removed or replaced from service without disassembly of the housing while the probe remains installed in a tank or other location undisturbed until the transmitter is replaced. Further, an environmental seal between the probe and the connector may be replaced without removing the transmitter housing from the connector so the explosion proof barrier for the transmitter housing remains effective.

대표청구항 ▼

[ What is claimed is:] [1.] A modular probe assembly comprising a seal body, a probe for carrying electrical signals mounted in said seal body and sealed relative to an internal cavity of the seal body,a connector body removably, sealingly coupled to the seal body by mating threaded portions to perm

[ What is claimed is:] [1.] A modular probe assembly comprising a seal body, a probe for carrying electrical signals mounted in said seal body and sealed relative to an internal cavity of the seal body,a connector body removably, sealingly coupled to the seal body by mating threaded portions to permit removing the connector body from the seal body and having an internal passageway therethrough, a pin secured in the internal passageway, an explosion proof barrier material filling the internal passageway and securing the pin therein, the pin coupling to the probe for carrying the electrical signals when the connector body is coupled to the seal body, an environmental seal between the mated threaded portions for sealing the seal body relative to the connector body, said connector body maintaining the explosion proof barrier material in the internal passageway when removed from the seal body, and having a coupling section for coupling the connector body to a transmitter housing.