Table of Contents
Advertisement
Example 4 - Dual Point Average
This mode of operation is commonly used for a dual discharge or wide vessel, where the
material profile within the vessel may vary substantially depending upon vessel filling/
emptying activity.
By averaging the measurement results obtained from two transducers aimed at different
portions of the material level profile, an average material level can be attained.
For this example we'll assume the following:
•
a 75 ft tall vessel is used to hold grain outside of an animal feed production plant.
•
the vessel discharges into two separate blenders.
•
the maximum vessel filling/discharge rate is 6 inches per minute.
•
2 XPS-30 transducers are mounted at the top of the vessel, aimed at each discharge
point.
•
2 alarms are required outside to warn of near full and full when the vessel is being
filled.
•
2 alarms are required in the production managers office to warn of near empty and
empty.
•
if a measurement difficulty occurs, the full alarm is to be activated to advise the
filling operator.
•
if a measurement difficulty occurs, the empty alarm is to be activated to advise the
manager.
70.00 ft
(P103)
68.00 ft
(P101)
6.00 ft
(P102)
7ML19981BD02
4.00 ft
(P104)
AiRanger DPL Plus – INSTRUCTION MANUAL
74.00 ft
(P006)
72.20 ft
(P007)
empty vessel target
Page 105
Advertisement
Table of Contents
