 The
200 Series RF Capacitance level switches are designed for point
level alarm or control of conductive and non-conductive liquids,
granular materials, foams. pastes. slurries and interface applications. Dimensional
Information
The 200 Series may be used with any Magne-Sonics insulated or
driven shield level sensing probe. When a driven shield probe
is used, special shield driven circuitry ignores the effect of
conductive material build-up on the level probe surface.
Other features include adjustable relay time delay to prevent
chattering in turbulent applications and field-selectable
low or high level fail-safe modes of operation.
An optional differential adjustment feature is available for
high' low pump control. The 200 Series is also offered with a
PUSHTO-TEST option to verify high level (overflow-) alarm
operation without actually filling the vessel. This easy test
is performed at the unit or from a remote location via a switch
closure. (An adjustable capacitor is switched in parallel with
level probe to check proper sensitivity adjustment and that the
instrument functions properly.)
The electronics are housed in a cast aluminum weatherproof and
explosion proof enclosure. Certification options are available
for the 200 Series by FM or CSA when used with an insulated type
level probe.
The 200 Series enclosures are normally mounted directly on the
level probe fitting, but can also be mounted up to 25 feet from
the level probe using remote mount accessories. |
