Electrode Assembly; Process Connections; Seal Types; Process Connection And Seal Configuration Of Sitrans Lc500 - Siemens SITRANS LC500 Operating Instructions Manual

Electrode Assembly

Process Connections

The standard threaded process connection (S-Series) with PFA insulated electrode,
including the active shield, provides good results in all measurement situations within the
temperature, pressure, and corrosive capabilities of the materials and seals. This remains
true over a wide range of dielectric constants in both non-conducting and conducting
materials.
Any standard process connection is available with the SITRANS LC500, and special
versions can be fabricated to match the mounting and application requirements. A wide
range of threaded and flanged fittings is available. (Contact your local Siemens
Milltronics representative for details, or check our website at:
www.siemens-milltronics.com.)

Seal Types

The basic internal seal for the SITRANS LC500 has a conical-shaped, preloaded
pressure/leak resistant construction. Up to three levels of seal protection are
implemented depending on the integrity requirements of the application. A single or
double cone internal seal forms one or two barriers against leaking, and a third flange
face gasket is also available in the D and DD seal construction. The flange face seal also
provides a design with no metal wetted parts if required.

Process Connection and Seal Configuration of SITRANS LC500

Process Connection
Threaded
Welded Flange
Solid Machined Flange
Page 18 SITRANS LC500 – OPERATING INSTRUCTIONS
Seal Type Seal Description
S Single Cone
S Single Cone
S Single Cone
D Single Cone + Teflon flange seal
Double Cone + Teflon flange seal. (Consult your
DD
local Siemens Milltronics representative.)
SD Double Cone (used for stilling well applications)
7ML19985GE04