ELECTRONIC FLOWMEASUREMENT SYSTEMS

2540 Multi-streamLiquid flow computers for the oil and refined products industry

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Solartron’s new 2540 Multi-stream Liquid Flow Computer is the mostaccurate and powerful flow computer available today. Combining acomprehensive range of facilities into a compact, cost effective and reliable package, it fulfils all the requirements of fiscal metering world-wide, now... and for the foreseeable future.

Greater accuracy, improved product quality, the ability to handle multiple productsefficiently, less wastage, and the guarantee that future operator needs can be meteasily are just some of the benefits offered by the 2540.

Automatic product detectionThe 2540 Flow Computer recognizes -by density or specific gravity - up to 20different fluid products flowing throughany of the four metering runs. Ondetection, products are automaticallydiverted to the relevant line or tank inthe plant.

Each named product has its owndedicated totalizers and uniqueflowmeter calibration data, which canbe invoked automatically to ensureoptimum accuracy and quality control.

The 2540 can generate individualProduct Batch Reports when theproduct flowing in the meter runchanges. These reports log alloperating parameters and flow totals fora particular product, and provide anaudit trail.

Cost effective Multi-stream monitoringand controlThe 2540 can monitor up to fourmetering runs, and handles both typesof commonly encountered flowschemes: 4x4x4 and 1x4x1.

In the 4x4x4 scheme the runs arecompletely independent, each with itsown flow meter and associatedinstrumentation (typically pressure,temperature, density and viscosity); thefluid can be common, or may bedifferent in each run.

The 1x4x1 scheme has a singlecommon inlet which divides into 4 runs,each having its own flowmeter, pressureand temperature measurement. The common inlet header typically has on-line density and/or viscositymeasurement, which can be referred tometer run conditions, using either API or4x5 Matrix Referral, all under the controlof the flow computer.

FlowmeterperformanceenhancementBuilt-in facilities in the 2540 significantlyimprove flow measurement uncertainty -essential for custody transferapplications - and also give improvedproduct quality and reduced wastage.

Linearization: The 2540 stores a 10-point linearization curve (K-factor v.frequency or %error v. flowrate) forcorrecting the inherent non-linearity offlowmeters, particularly turbines.

Viscosity Compensation: The 2540can accept up to four calibration curvesto compensate for the effect of differentviscosities on flow meter performance.Alternatively, unique calibration data foreach product can be entered for eachflow meter, optimizing the performancefor each product.

2540: Complete meMulti-stream liquid flow computer

➔ ➔ ➔ ➔ ➔ ➔Transactions and batchingThe 2540 generates and logs records -often known as Batch Records (orQuantity Transaction Records, QTRs) - of flow totals and other operating details.These can be initiated and stopped by avariety of methods, giving total controlover their generation, and enabling flowtotal for each shift or day to be recorded.Flow of individual products can betracked and even batched into definedquantities, if required. Time: A new batch is triggered auto-matically, typically every hour, shift or day.

Manual: Batches are triggered andstopped manually on demand from thekeypad or via a remote comms input.

Product: With automatic productdetection enabled, whenever the productchanges, the current batch is completed,and a new one started.

Quantity: Each time a batch quantity(set by the user) is reached, a batchreport is produced and the flow can bestopped. This facility allows fluids to bebatched by volume or mass.

ProvingTo complement its outstanding flowmeasurement capabilities, the 2540also provides full prover control for uni-directional and bi-directional pipeprovers, compact provers and can evencontrol master meter provers, utilizingthe fifth flow meter input.

CommunicationsThe 2540 is easily integrated into plant-wide networks. It has full RS232 and485 interfaces for data acquisition andexternal supervisory control. In addition,inputs from up to 16 HART transmittersare supported.

Report generationComprehensive report generationfacilities are an integral part of the 2540.Standard reports include a completelisting of configuration data; an alarmreport; a prover report; and a listing of‘auditable events’, which shows anycritical changes made to the operationof the flow computer, such as flow andcalibration parameters, etc.

In addition, user-defined reports can becreated to generate listings of specifieddata manually or at pre-determinedintervals. All 2540 reports can beprinted or downloaded when required.

Built-in reliability2540’s internal database is continuallyupdated from input channels.Measurement critical data is stored innon-volatile memory, and is triplicatedand cross-validated on everymeasurement cycle to ensure dataremains uncorrupted.

• monitors up to four independentmetering runs

• accepts inputs of flow, pressure,temperature, density and viscosityfrom each meter run

• detects and totalizes up to 20 differentproducts - automatically

• provides compensated flow rates and totals, including Gross Volume, Gross Standard Volume, Mass Flow (in accordance with API 21.2)

• supports density and viscosity referral

• improves measurement uncertainty

• records and controls batches and transactions

• provides integral prover control

Based on Solartron’s proven 7955 flow computer hardware, the 2540:

etering control

Solartron has been a market leader in supplyingprecision measurement solutions for the oil, gas,power, aerospace and process industries for over 50years.

Part of the Roxboro Group PLC, Solartronmanufactures a range of transducers andinstrumentation for on-line continuous measurementof density and viscosity in liquids and gas which,together with data acquisition products andlaboratory instrumentation, have a global reputationfor excellence in performance, reliability and support.

Solartron’s Quality System is approved to BS EN9001: 1994, and our Calibration Laboratories arecertified by NAMAS.

All our products carry the mark, showing that theyare fully compatible with EC Directive 89/336/EEC

A world-wide network of Sales and Service Centers iscommitted to ensuring that our customers enjoy themaximum benefit from all their instrumentation.Services available include installation, commissioning,maintenance, repair and calibration of instrumentsand systems. In countries where there is no directrepresentation, Solartron is supported by a network ofover 100 agents and distributors.

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2540Outline Functional SpecificationCalculates: Indicated Volume Rate & Total

Gross Volume Rate & TotalNet Volume Rate & TotalIndicated Standard Volume Rate & TotalNet Standard Volume Rate & TotalMass Rate & TotalNet Mass Rate & TotalLine Density: - direct measurement or

- referral from header using API or matrix referralBase Density:- API or matrix referral

Conforms to: API 11.2.1API 11.2.2API 2540: sections A,B,C of Tables 5,6,23,24,53,54

Monitors, trendsand alarm checks: Temperature, Pressure, Viscosity, and BS&W

Batch Transactions: Manual, time-based, product-based, or quantity-based

Alarms: System; input; limit. All Alarms and Significant Events are logged to facilitate an audit trail

Prover control: Support for Master meter, Compact & Uni- or Bi-directional pipe provers

Security: Via keyswitch or four password levels

Logging & Reports: - pre-formatted reports containing fixed and user selected data- user-configurable report formatter

Outline Hardware SpecificationInputs/OutputsFlowmeter single or dual pulse 4*Density/Viscosity time period 4Analog inputs 0-20mA or 4-20mA 16RTD/PT100 inputs 4**Hart inputs 16†

Digital inputs 26Digital outputs (incl. Alarm relay) 26Analog outputs 4 (+4)††

Pulsed (open collector) outputs 5Communication ports RS232 or RS485 3(+2)††

* plus an additional input facility for master meter prover** each RTD/PT100 temperature input requires one analog input† with optional Hart input card, four loops are available on analog inputs 13-16†† with optional output card

EnvironmentalPower 21 to 30Vdc, 35W maximumEnclosure NEMA12 IP52Storage temp. -20 to +70°C (-4 to 158°F)Operating temp. 0 to +50°C (32 to 122°F)Display 4x20 character LCD, backlitElectromagnetic Compatibility Emissions - satisfies EN50081-1:1992 (Light Industrial)

Immunity - satisfies EN50082-2: 1995 (Industrial)Dimensions (h x w x d) 101 x 197 x 355mm (4 x 7.75 x 14ins)

Solartron Ltd 158 Edinburgh Avenue, SloughBerkshire SL1 4UE UKTelephone +44/0 1753 756600Fax +44/0 1753 823589

Solartron Inc19408 Park Row, Suite 320Houston, Texas 77084, USATelephone +1 281-398-7890Fax +1 281-398-7891

B524001

Solartron pursues a policy of continuous development and productimprovement. The specifications in this document may therefore be changedwithout notice.

Sl/2540/iss/02/1100 © Solartron 2001

Email: sales@solartron.com Web: http://www.solartron.coma Roxboro Group company