Smith Meter® AccuLoad and AccuLoad III are trademarks of FMC The default or operating values used in this manual and in the program of the AccuLoad III. AccuLoad III High Speed Prover Output · AccuLoad III Vapor Recovery Application Bulletin · AccuLoad IIInet Application Manual · AccuLoad III-S N4 Hardware. The default or operating values used in this manual and in the program of the Smith Table of Contents iii. Volume Accuracy – Preset Amount Type.

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Each metering system is unique ii each program parameter must be reviewed and programmed for that specific metering system application. Arm Directory Directory Alarms It is configurable to support a variety of user applications. In addition, the firmware is able to detect the absence of the BSE expansion board and enforce a limit of three meters.

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The firmware is also able to detect whether a second display is available and use the second display only if present. If limited to one display, the number of arms is limited to two. Straight product, sequential blending, ratio blending, side-stream blending, hybrid blending and unloading.

If ratio, sequential blending or hybrid is selected, the operator acculosd the number of products to be associated with acculozd load arm. Straight product arms acculiad be programmed for one product. Side-stream product arms must be programmed for two products. If multiple arm operation is selected, the process is repeated for each load arm defined. Side-stream blending is a two-product ratio blender where the minor of two products is metered and is controlled by a valve.

The main product is free-flowing. Another meter and its corresponding control valve are located downstream from where the two products merge. Two to six meters may iiii used to create a ratio blend. The AccuLoad III allows any combination of ratio blending arms to be supported with the available meter inputs.

This limits the number of ratio blending arms to three two-product arms maximum. Other possibilities are two three-product arms, or a four-product and a two-product arm, etc.

For purposes of determining valid acduload combinations, a side-stream blending arm can be considered a two-product ratio blending arm, as both require the same resources. For applications with straight product delivery or sequential blending, each load arm may be configured independently for blending activity and product number.

Two to six meters may be used to create a hybrid blend. The hybrid blend consists of one sequentially blended product line feed by up to five main products combined with one to five product streams that are ratio blended into the main products.

Smith Meter AccuLoad III – PDF

Hybrid blending is ideal for applications where two or more diesel products are being blended sequentially combined with bio mass which it is recommended to be ratio blended.

Optimum measurement accuracy is attained through continuous linearization of the meter factor with changes in flow rates. The AccuLoad III is also capable of maintaining back pressure on the measurement system using either automatic flow optimization or a acckload transmitter.

Volumetric correction is calculated directly from published API equations providing precise volumetric measurement results. Precise temperature, pressure compensation, and density correction are options that are available in the instrument. The dynamic real-time display of the current actual operating conditions of the system provides the operator with valuable system information while the system is operating.

Additive injection, pump control, alarm control, set stop, valve control, back pressure control, automatic adjustment of final trip point, and flow rate controlled injector. Other significant features acculpad as follows: When six arms are programmed for use, all six arms can be viewed on the two displays.

Up to 24 different additive injectors can be simultaneously paced or controlled through communications. Each Add-Pak system incorporates up to ten metered injectors along with digital outputs to energize additive pumps and injector solenoids.


The AccuLoad III wccuload monitor and totalize the volume of additive injected by piston-type additive injectors or smart injectors.

When using Firmware Revision and above, the AccuLoad supports shared injectors. When using Firmware Revision and above, the AccuLoad supports downstream injectors piston, smart, metered, etc.

When using Firmware Revision and above, a user-configurable prove report can be automatically printed at the end of a prove. A sample user configurable prove report is provided with AccuMate. When using Firmware Revision and above, the AccuLoad supports temperature compensated flow additives, mass meter communications, and non-cyclic meter pulse averaging.

When using Firmware Revision and above, the AccuLoad supports the inclusion of PIN validation in the data base and an ability to automate start and stop batches for unattended tank filling. When using Firmware Revision and above, the AccuLoad supports the use of a captive card reader, flow controlled additive pulse input security, general pulse analog inputs, and remote injector input for proving metered injectors.

When iiu Firmware Revision and above, the AccuLoad supports hybrid arm configuration as described previously, clean line product can now be selected in the recipe and the flow controlled additive percentage has been changed from 10 to 20 percent. The AccuLoad III, if so programmed, will automatically calculate and adjust the additive pulse output to be stopped at the first trip point of the product with the same number of pulses. This will have the same effect as if the additive output was stopped at the end of the batch.

A contact is available to start and stop a pump or other electrically operated equipment as well as a program code that will set the time delay of that start or stop. Two programmable alarm contacts are available. They operate independently and can be configured to close on a Valve Fault, on any alarm, or not manuql all.

Acccuload AccuLoad III contains the intelligence to automatically reduce the flow of product and ensure the flow is within the pumping capabilities of the system. Once the flow is able to continue at the programmed high flow rate, the AccuLoad III will increase the flow to programmed values.

Critical functions such as minimum flow rate, excess flow rate, temperature detection, preset volume overrun, and memory retention, are monitored by internal circuits. Any failure will signal closure of the valve.

Should the valve fail to close within a programmable period after having been signaled, a contact is closed. Environmental fluctuations within specified limits have virtually no effect on the operation of this control system. AccuLoad III is available in an explosion-proof housing for hazardous mznual.

See Bulletin SS for Specifications. This manual is divided into eight sections: The Operations section describes the daily operation of the AccuLoad III and explains what is required of an operator to effectively load the product. The Security section describes the levels of security available within the AccuLoad III and explains how they can be configured and utilized. The Reference section gives a description of each program code available in the instrument.

The Index is a comprehensive listing, with mankal numbers, of all subjects covered in this manual. The examples presented in this manual are for clarity and operator convenience. This is most commonly done with products that mix accullad easily. The ratio of varying products is designated in the recipe as a percentage of the total preset.

When the operator enters the preset, the AccuLoad mqnual calculates the actual volumes of each product to be delivered. Each of these is delivered as a type of mini-batch, complete with individual high flow rates, first trip volumes, and so on.

The order of product delivery must be included in the recipe definition. If an incorrect product volume is delivered, the volumes of the remaining products are adjusted accordingly. If this adjustment creates a blend intolerance alarm, the operator will be prompted to stop or continue the batch. An exception to this rule acculoxd when acculpad delivery of the same product is specified in the recipe.


In this case, the volume of that product s next delivery only is adjusted to maintain the correct blend ratio and preset amount. Ratio Blending Ratio blending is the adcuload of mixing multiple products simultaneously during delivery to a vessel e. Ratio blending is used primarily when loading speed is an issue, or when the component products do not easily mix.

All products required for the recipe are delivered simultaneously through their own meters and their own corresponding pumps and control valves. Two-stage valves are not used for ratio blending; only digital or analog valves are acceptable.

The ratio of the component products is designated in the recipe as a percentage of the total preset. When the operator enters the preset, the AccuLoad III automatically calculates the actual volumes of each product to be delivered. As stated above, products are delivered simultaneously, ili through its own meter. Flow rates are adjusted for optimal blend accuracy while conforming to the programmed system flow profile using Smith s exclusive control algorithm.

Should flow rate variations occur, the profile is dynamically adjusted to attain the best possible mix. A typical hybrid blending arm configuration may be three sequential products and one or two ratio products. The sequential products flow one at a time and in most cases one of the ratio products would flow simultaneously with each of the sequential products.

The ratio product s can be plumbed either upstream or down stream of the sequential product meter.

On a hybrid arm there must be at least acculod sequential product configured. Side Stream Blending The AccuLoad III supports side-stream blending, which is defined as two-product ratio blending where the minor of the two products is metered and is controlled by a valve, and the main product is acuload.

Another meter and its corresponding control valve are located downstream of where the two products merge. This feature is intended to be used in applications where it is desired to continuously blend two or more products where a preset volume is not normally used. For ratio blending applications, the additive injector can only acculoav delivered if it is plumbed into a product that is part of the recipe being delivered.

Downstream injectors allow those additives to be available for delivery with any product in the blend since they are plumbed downstream of the manifold. Implementing this feature requires that a load arm be identified as unloading ; up to six load arms can be so configured.

This zccuload requires a load arm type to be programmed as Straight with VRS. Two meters are required for this application to determine the amount of vapor recovered while loading light density products. The AccuLoad manuak a vapor product total and a net mass total accukoad the liquid product meter and the vapor product meter in the system.

For additional information refer to AB0A Six new parameters will be required to support this feature, refer to Alarm Responses Arm Directory Directory Alarms Assuming parameters are configured correctly, the client functionality assumes that the account and associated password is a previously created and valid account on the server specified.

Support for base 64 encoding of the username and password will be included i. Upon successful connection, the SMPT client will issue an with the text of the alarm event. The switch will be utilized as follows: The Acuload can also pass card data and status to a host computer. The card reader interface is activated by choosing the card reader option in the serial communications function program code.