BA658C Flow batch controller - BEKA Associates

Pulse or4/20mAoutputfromflowmeterBA658CPower supply24VBA658CFlow batchcontrollerGeneral purposeFlow batch controllersFlowmeterValve 1Valve 2The BA658C is a second-generation,general-purpose flow batch controller thatsupersedes the successful BA550P andBA550C. This controller is ideal foraccurately dispensing liquids, solids orcomponents and despite its sophisticatedcontrol functions, it remains very easy to useand configure.The backlit display is readable in all lightingconditions. The user screen may be selectedso that the operator is only presented withessential process information. Variables thatmay be displayed include dispensed quantity,batch setpoint, rate of dispensing andcontroller status. Most of the standard displayscreens also include a bargraph showingbatch progress. A record of the total productdispensed is maintained as a grand total,together with a history of the last ten batches.Up to nine setpoints may be pre-entered forselection by the operator when required.To simplify selection, each setpoint may beidentified by a plain language name havingup to sixteen alphanumeric characters. Thecontroller can also be configured so that theoperator can adjust an existing setpoint orenter a new value.Single or two-stage control can beperformed by the BA658C with a third outputavailable to control an additional valve orpump, or even to provide three-stage control.To ensure maximum accuracy, overruncompensation may be selected to automaticallyminimise batching errors caused byactuator delaysPulse and analogue 4/20mA signals areaccepted by the batch controller. All inputsare galvanically isolated from the controllerpower supply and outputs so that earthedsignals may be connected. Pulse inputs maybe from switch contacts, a 2-wire proximitydetector or a wide range of voltage sources.An easily adjustable sixteen point straight linelineariser will accurately correct almost anyflowmeter non-linearity. The BA658C alsoincorporates a root-extractor so 4/20mAanalogue inputs may be linear, or have asquare law relationship with the rate of flow.Separate total and rate scaling factorsenable the dispensed quantity and the rate ofFlowdispensing to be displayed in the same or indifferent engineering units.The three relay contact outputs may beindividually configured as control or statusoutputs. If more are required, a factory fittedoption provides three additional galvanicallyisolated solid state outputs.Front panel push buttons allow the operatorto start and stop the batch and to resetthe controller at the end of each cycle. Forapplications where large or remote pushbuttons are required, control may be transferredto external switches with or withoutinhibiting the front panel controls.Counting may be inhibited during a batchby closing an external contact. Thus productmay be re-cycled whilst being heated, or thebatching system may be purged withoutaffecting the quantity dispensed.Selectable automatic restart causes theBA658C batch controller to execute thebatching operation a pre-set number of times.The delay between batches may be setbetween 1 second and 24 hours, thusenabling the controller to perform regulardosing and sampling operations.Controller configuration is performed viathe front panel push buttons or optionalexternal switches. Carefully designed configurationmenus lead the installer intuitivelythrough the available functions. Configurationmenus and user screens may be displayed inEnglish, French or German.A security link and an optional userdefinable four digit security code preventaccidental or unauthorised access to theconfiguration menus.For field mounting applications theBA654D provides the same batching facilitiesas the BA658C but is housed in a robust IP66GRP enclosure suitable for externalmounting. A complementary range of fieldand panel mounting intrinsically safe modelsis also available for use in potentiallyflammable atmospheres.◆ Easy to use◆ High contrast displaywith backlight◆ Pulse or 4/20mAcurrent source input◆ 3 or 6 outputs◆ 9 selectable batchsetpoints◆ IP66 front panel◆ 3 year guaranteeBEKA associates Ltd. Old Charlton Rd.Hitchin, Hertfordshire, SG5 2DA, U.K.Tel. (01462) 438301 Fax (01462) 453971e-mail sales@beka.co.uk www.beka.co.uk

SPECIFICATIONPower supplyVoltageCurrentPulse InputsSwitch contactClosedOpenProximity detectorMagnetic pick-off20 to 36V dc.95mA maxLinear or via 16 point lineariserLess than 100ΩGreater than 1kΩ2-wire NAMUR40mV peak to peak minVoltage pulse (low)LowLess than 1VHighGreater than 3V; 30V max.Voltage pulse (high)LowLess than 3VHighGreater than 10V; 30V max.Open collectorClosedOpenLess than 2kΩGreater than 10kΩFrequencySwitch contact 100Hz maximumAll other pulse I/P 5kHz maximum4/20mA input From current sourceFunction Linear or root extractingVoltage drop 0.6V at 20mAAccuracy at 20˚CLinear 0.3 % of spanRoot extracting ±16 µA at input ±0.3 % of spanTemperature effect Less than 0.025%/˚CFrequency 2Hz maximumInhibitLinking terminals 18 & 20 prevents inputsignal being counted.DisplaySize86.5 mm x 45 mm LCDBacklightGreen6 selectable operatorscreens showingcombinations of: Digital & bargraph display of quantitydispensed.Batch setpointRate of dispensingStatus of control outputsBatch controller statusOutputsRatingSwitching timeControl 1Outputs 2 & 3may be configuredas:Three single pole relay contacts.250V; 5A; 1.25kVA ac30V; 5A; 150W dcReactive loads must be suppressed.0.2s maxCloses when start button is operated andopens when batched quantity equals thebatch setpoint.Control 2 or Control 3 (parameters foreach are individually adjustable)Closes a programmable time afterControl 1 closes and open a programmabledispensed quantity before thedispensed quantity equals the batchsetpoint.Front panel push buttonsStart Energises Control 1Flow alarmCloses when the rate of dispensing fallsbelow a pre-entered value. Also causesbatch controller to pause.Reset statusCloses when controller is reset andopens when batch is started.Batch statusOpens when batch is started and closeswhen batch is complete.Pulse outputScaled output proportional to totalvolume dispensed.Frequency 4 Hz max.Stop During a batch de-energises Control 1, 2& 3 causing the batch to pause.ResetMenuSecurityOperator menusResets the batch display to zero or to thebatch setpoint if the controller is countingdown.Provides access to four functions if theyare enabled:Select pre-entered batch setpointAdjust batch setpointView size of last 10 batchesConfiguration menuMay be protected by an optional four digitcode.Configuration menusProtected by external link or switch, plusoptional four digit code.EnvironmentalOperating tempStorage tempHumidityEnclosureEMCImmunityEmissionsMechanicalTerminalsWeightAccessoriesAdditional outputsTag numberHOW TO ORDERModel numberAccessoriesOutputs 4, 5 & 6Tag Strip-20 to +60˚C-40 to 85˚CTo 95% @ 40˚CFront IP66, rear IP20In accordance with EUDirective 89/336/EEC.No error for 10V/m field strength between150kHz and 1GHz.Complies with the requirements for Class Bequipment.See page 148 for enclosure & terminaldetailsRemovable with screw clamp for0.5 to 1.5 mm 2 cable.0.7 kgThree configurable galvanically isolated,single pole solid state dc switch outputs.Rating: 30V; 100mA dcThermally printed strip on rear ofinstrument.Please specifyBA658CPlease specify if requiredAdditional 3 solid state dc outputsLegend03

BA458C & BA658C Case and terminal informationDIMENSIONS (mm)TERMINAL DESCRIPTIONSCaseFor earthing the enclosurePanel cut-outRecommended panel cut-outDIN 43 700138.0 +1.0/ -0.0 x 68.0 +0.7/ -0.0To achieve an IP65 seal betweenthe instrument and the panel136.0 +0.5/-0.0 x 66.2 +0.5/-0.0Four panel mounting clips mustbe used1 +Power supply2 –11 + Proximity detector, switch Input12 – contact or open collector A13 + High voltage14 + Low voltage Input15 mV (Magnetic pick-off) B16 – Common for input 217 + 4/20mAonly one inputmay be used144BA458CDISPLAY72 11 8418 Common for linksExternals19 Configure security linkLinks20 Inhibit input linkS1StartS2StopS3 Reset ExternalS4 Menu SwitchesS5Do not useS6Do not useS7Common for switchesCaseFor earthing the enclosureA1 +A2 –Control 1TERMINAL CONNECTIONSA7 A8 X A9 A10 A11 A12+ – + – + –Optionaloutput 4Optionaloutput 5Optionaloutput 611 12 X 13 14 15 16 17 18 19 20+ – + + +ContactProximity det.Open collectorInput AHi VLo VmVCommonInput BA3 +Output 2A4 – Outputs 2 and 3 may each beconfigured to have one of sixA5 + functionsOutput 3A6 –A7 +A8 –A9 +A10 –A11 +A12 –Output 4Output 5Output 6If fitted optional outputs 4, 5 and6 may each be configured tohave one of six functions.Note:BA658C: Control 1, Output 2 and Output 3 are relay contacts whichare not polarisedA1 A2 X A3 A4 A5 A6+ – + – + –Control 1 Output 2 Output 3CaseCase4/20mA +CommonSecurityInhibitExternallinks1 2+ –PowerS1StartS2StopS3ResetS4MenuX X S7Common‘X’ Do not useExternal switches03