Patent ID: 7450055
Filing Date: 2008-11-11
Classification: G01F,H01R

Abstract:
1. A guided wave radar level gauge for determining a process variable of a product in a tank, comprising: a feed through fitting, adapted to be securely attached in the ceiling of the tank, a probe, having a first end fixedly arranged in said feed through fitting and a second end extending into the tank, transceiver circuitry mounted on a circuit board, said transceiver circuitry being arranged to generate an electromagnetic signal to be guided by the probe into the tank, and to receive a reflection of said signal guided back from the tank by the probe, processing circuitry connected to said transceiver circuitry and arranged to determine said process variable based on a relationship between said electromagnetic signal and said reflection, a housing having a body portion for accommodating said circuit board, and a neck portion for attachment of said housing to said feed through fitting, a rigid, essentially straight, coaxial connector arranged in said neck portion, said connector having a central lead portion without detachable connections, a first end of said lead portion protruding into said body portion, and a second end of said lead portion in electrical contact with said probe when said housing is attached to said feed through fitting, wherein said circuit board is mounted in a plane perpendicular to an axial extension of the coaxial connector, and in direct contact with said first end of said lead portion, so that said connector provides electrical contact between said probe and said transceiver circuitry.