公开(公告)号：CA2276778A1

公开(公告)日：1998-07-16

申请号：CA2276778

申请日：1998-01-06

Applicant: ROSEMOUNT INC

Inventor： OLSON RANDALL C ,  KRUSE STEVE D ,  GRAVEL JAMES L

IPC: G01F23/26 ,  G01F23/284 ,  H01R13/52 ,  H01R13/527 ,  H01R13/622

Abstract: A modular probe (22, 90) that is used with a transmitter (20) for determining levels in a process material container (10), bins, pipes, using capacitance, micro impulse radar, or other types of signals, has a self contained pressure seal (26, 38, 46, 91, 92). The probe (22, 90) mounts to a connector (58, 98) that has an explosion proof barrier (74, 97) in a manner so that they can be separated and replaced without altering the barrier (74, 97). The transmitter (20) may be coupled and uncoupled from the connector (58, 98) after the probe (22, 90) is installed in a tank and the transmitter housing (78) can be removed and replaced, both without affecting the explosion proof portion of the assembly. An environmental seal (66, 100) between the probe (22, 90), and the connector (58, 98) may be replaced without removing the transmitter housing (78) from the connector (58, 98) so the explosion proof barrier (74, 97) for the transmitter housing (78) remains effective.

公开(公告)号：AU5908798A

公开(公告)日：1998-08-03

申请号：AU5908798

申请日：1998-01-06

Applicant: ROSEMOUNT INC

Inventor： GRAVEL JAMES L ,  KRUSE STEVE D ,  OLSON RANDALL C

IPC: G01F23/26 ,  G01F23/284 ,  H01R13/52 ,  H01R13/527 ,  H01R13/622

Abstract: 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.