Patent ID: 8061199

Claim:
A measurement system, comprising: a housing; a sensing element mounted on the housing for measuring a characteristic of a fluid, the sensing element comprising a first seal for discouraging leakage of the fluid into the housing; a second seal in fluid communication with the first seal; a rupturable barrier; an electrical conductor extending through said second seal, said electrical conductor is mounted coaxially with said second seal; an electrical junction box connected to said housing, wherein the electrical junction box is configured to mate with a conduit and to receive an electrical cable routed through the conduit; wherein the electrical junction box comprises an outer wall, a cover mountable on the outer wall, and an inner wall that divides the electrical junction box into a first and a second interior volume; the second seal is mounted on the inner wall so that the electrical conductor extends through the inner wall between the first and second interior volumes; a wire from the sensing element extends into the second interior volume by way of the housing; the first interior volume is configured to receive the electrical cable routed through the conduit, and the rupturable barrier is in fluid communication with the second interior volume, and further wherein a first side of the rupturable barrier is in fluid communication with the first and second seals; and the rupturable barrier is configured to rupture when the pressure acting on the first side of the rupturable barrier is less than a maximum rated operating pressure of the second seal.