Emerson Process Management MMI-20015440 Marine Instruments User Manual


 
14 Micro Motion 7827 Digital Viscosity Meter
Installation (Short Stem)
The three compression fittings on the flow pockets (½" drain, ¾" temp probe, and 1-½" mounting nut
for the meter) are rated to above the working pressure of the flow pocket. The fittings may be
Swagelok or Parker; both are used in manufacture.
The fittings are certified to the following standards:
Swagelok: SO9001 / 9002, ASME,TUV,CSA,DNV
Parker: ISO 9001 / 9002, TUV, DNV, LLOYDS
2.4 Installation in the pipeline or system
Viscosity is a highly sensitive indicator of change in a fluid – a key reason why viscosity
measurement is increasingly being chosen as a process measurement.
This sensitivity means that the measurement can be very sensitive to extraneous effects and therefore
great care must be taken to consider all the factors which affect measurement when assessing the
installation requirements.
Like many other meters, the optimum performance of the viscometer depends upon certain conditions
of the fluid and configuration of the process pipe-work. By introducing appropriate flow conditioning,
the optimum performance of the 7827 meter can be achieved at any chosen location in the process
system.
Dimensions shown in inches (mm)