7ML19985CS01
Milltronics Millflo – INSTRUCTION MANUAL
Page 13
Applications
Ideal material characteristics:
•
low cohesion (flows well through chutes, similar to a liquid)
•
low adhesion (does not stick to surfaces)
•
low abrasion (will not wear out chutes, flowguide, or sensing plate)
•
low causticity (will not damage internal flowmeter components)
Location
Materials with low moisture content generally have excellent flow and adhesion
characteristics. In processes where material moisture content varies, select a flowmeter
location where the moisture content is lowest.
Linings
•
Sensing plate and flowguide non-stick linings are often used for flour (wheat),
starch, and material with similar characteristics.
•
Sensing plate and flowguide abrasion resistant linings are often used for barley,
corn, soya beans, wheat, and material with similar hardness and particle mass.
Abrasive materials are best monitored at low velocity.
Material Feed
Ideal material in-feed characteristics
•
constant and relatively low material velocity
•
uniform material flowrate (not pulsing)
•
negligible air flow through the flowmeter
•
flowguide 17% to 50% full during operation
Feed Conditions
•
A gravity-fed flowmeter generally provides accurate readings.
•
A mechanically fed flowmeter may not provide a consistent feed, affecting
flowmeter performance. A consistent feed provides the most accurate readings.
•
A reverse flowguide transition is preferred for high or variable velocity feeder
material discharges. (Refer to
Flowmeter Infeed Chutes
on page 15.)
•
A larger loadcell compensates for slight to moderate material pulsing at greater
than 1 pulse per second. If heavily pulsing feeder discharges at less than 1 pulse per
second, consult Siemens Milltronics or your local distributor.
•
Use a flowmeter discharge chute suitable so that material cannot backup into the
flowmeter housing.
Note: For best performance and limited maintenance requirements, keep in mind
material compatability and flow patterns.
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