are process instruments and must be treated with reasonable care. Before
installation [if not before procurement], due consideration must be given
flowmeters are designed to operate in liquids. Application in air or
other gasses will result in damage.
recommended liquid viscosity is 25 centipoise [100 SSU]. Higher viscosities
will reduce performance at low flow rates. Much higher viscosities may
damage the moving parts as a result of the excessive pressure drop required
to induce flow. Consult your Sales Representative or the factory for
an inferential method of measuring flow of high viscosity liquids.
objects in the process liquid, large enough to be easily visible to
the naked eye, may jam the moving parts. A 25 micron filter will generally
remove particles which would affect performance A finer filter may be
required in applications in which smaller suspended p.articles could
settle out and build up in the nutating chamber. Consult your Sales
Representative or the factory for an inferential method of measuring
flow of liquids with entrained solids or particulate matter.
are designed to operate in continuous flow streams within their specified
flow ranges. In certain applications, notably intermittent, pneumatic
injection pumps, the instantaneous flow rates are many times greater
than the operating ranges of the Microflowmeters. In these cases, the
meters must normally be fitted with orifice screws which will restrict
the instantaneous pump discharge rates to ranges within Microflowmeter
specifications. Consult your Sales Representative or the factory for
this optional device.