|
The Omnitrol Model 616 single actuator and the
Model 716 double actuator are top mounted level
switches. These controls have a standard 2-1/2”
NPT connection and are also available with
various sized flanges. The displacer is made of a
hollow stainless steel tube. The continuous
displacer offers the special advantage that
switching will not be affected by a build up of oils
or solids on the displacer. Switching will take place
slightly higher on the displacer if build up occurs.
Since the top of the displacer is always above the
high liquid level, rags or other materials cannot
entangle on the top of the displacer and cable.
Displacers do not ride the surface of the liquid,
but rather “sink” in the liquid, and they are not
affected by surface agitation, thereby
eliminating nuisance switching. These displacers
are weighted and are not affected by turbulent
liquids.
Omnitrol uses the Constantly Engaged Magnetic
Field which gives a positive “make” or “break”
action of the mercury switch. The power of
Omnitrol’s magnetic field enables the use of an
SPST, SPDT, DPST, or DPDT switch
economically on each actuator.
The temperature rating of each control is limited
by the materials of construction, displacer, and
switch selected. Mercury or micro switches can
be used on each side of the actuator to provide
double pole switching
|
Download PDF Brochure