Emerson Process Management 8732 Process Leak Protection Optional, Standard Housing Configuration

Rosemount 8732

Reference Manual

00809-0100-4663, Rev BA January 2010

PROCESS LEAK PROTECTION (OPTIONAL)

Standard Housing

Configuration

Figure 5-17. Standard Housing

Configuration — Sealed Welded

Housing (Option Code W0)

The Rosemount 8705 and 8707 High-Signal Sensor housing is fabricated from carbon steel to perform two separate functions. First, it provides shielding for the sensor magnetics so that external disturbances cannot interfere with the magnetic field and thus affect the flow measurement. Second, it provides the physical protection to the coils and other internal components from contamination and physical damage that might occur in an industrial environment. The housing is completely welded and gasket-free.

The three housing configurations are identified by the W0, W1, or W3 in the model number option code when ordering. Below are brief descriptions of each housing configuration, which are followed by a more detailed overview.

•Code W0 — sealed, welded coil housing (standard configuration)

•Code W1 — sealed, welded coil housing with a relief valve capable of venting fugitive emissions to a safe location (additional plumbing from the sensor to a safe area, installed by the user, is required to vent properly)

•Code W3 — sealed, welded coil housing with separate electrode compartments capable of venting fugitive emissions (additional plumbing from the sensor to a safe area, installed by the user, is required to vent properly)

The standard housing configuration is identified by a code W0 in the model number. This configuration does not provide separate electrode compartments with external electrode access. In the event of a process leak, these models will not protect the coils or other sensitive areas around the sensor from exposure to the pressure fluid (Figure 5-17).

1/2–14 NPT Conduit

Connection

(no relief valve)

5-16