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Section I - Introduction
MN06065 Rev. 0.3 (8/97)
1
Product Description
The Smith AccuLoad II-RBU is a microprocessor
based electronic instrument/in-line blender delivery
system designed to simultaneously control the
blending and loading of up to four petroleum or
chemical products through one load arm.
The AccuLoad II is designed to provide dependable
service over a wide range of operating conditions. It
is easy to operate and maintain, provides optimum
measurement accuracy, displays current operating
conditions, is easy to communicate with, and per-
forms many loading system control functions.
Ease of operation and service permits rapid training
of operators and service personnel. All entries into
AccuLoad II are made quickly and easily through the
rugged external keypad. Every keystroke is moni-
tored and assistance is provided by auto prompting
displays. Built-in "Help Messages" provide valuable
information to aid in the programming of the instru-
ment without resorting to a thick manual. Service is
simplified with self-diagnostics that show parameters
in need of adjustment or hardware that is malfunc-
tioning.
Optimum measurement accuracy is attained through
the continuous linearization of the meter factor with
changes in flow rates. The AccuLoad II is also capa-
ble of maintaining back pressure on the measure-
ment system using either automatic flow optimization
or a pressure transmitter. Volumetric correction is
calculated directly from published API equations pro-
viding precise volumetric measurement results. Pre-
cise temperature, pressure compensation, and den-
sity correction are options that are available in the in-
strument.
The dynamic real time display of the current actual
operating conditions of the system provides the op-
erator with valuable system information while the
system is operating. Also available through the dy-
namic display are the non-resettable totals. Some of
the information that is available through the dynamic
display is as follows:
• Current Time and Date
• Current System & Product Flow Rate (units/min.)
• Current System & Product Flow Rate (units/hour)
• Current Temperature
• Current API
• Reference Density
• Relative Density at Reference
• Current Pressure and Vapor Pressure
• Current Meter Factor
• Current CTL
• Current CPL
• Current Density
• Current Raw Transaction Volumes
• Current Gross Transaction Volumes
• Current Gross at Standard Temperature
Transaction Volumes
• Current Net Transaction Volumes
• Current Mass Transaction Totals
• Additive Injector 1 Transaction Volumes
• Additive Injector 2 Transaction Volumes
• Additive Injector 3 Transaction Volumes
• Additive Injector 4 Transaction Volumes
• Additive Injector 5 Transaction Volumes
• Additive Injector 6 Transaction Volumes
• Additive Injector 7 Transaction Volumes
• Additive Injector 8 Transaction Volumes
• Current Valve Status & Commanded Position
• Load Average Temperature
• Load Average Pressure
• Load Average Density
• Load Average Meter Factor
• Raw Non-resettable Volumes
• Gross Non-resettable Volumes
• Gross at Standard Temperature Non-resettable
Volumes
• Net Non-resettable Volumes
• Mass Non-resettable Totals
• Additive Injector 1 Non-resettable Volumes
• Additive Injector 2 Non-resettable Volumes
• Additive Injector 3 Non-resettable Volumes
• Additive Injector 4 Non-resettable Volumes
• Additive Injector 5 Non-resettable Volumes
• Additive Injector 6 Non-resettable Volumes
• Additive Injector 7 Non-resettable Volumes
• Additive Injector 8 Non-resettable Volumes
• Input Module Status
• Additive Injector 1 Pulse Rate
• Additive Injector 2 Pulse Rate
• Additive Injector 3 Pulse Rate
• Additive Injector 4 Pulse Rate
• Additive Injector 5 Pulse Rate
• Additive Injector 6 Pulse Rate
• Additive Injector 7 Pulse Rate
• Additive Injector 8 Pulse Rate
• Current Blend Ratio per Product
• Last Power Failure - Time and Date