Rosemount Tank Radar LOOPRADAR Radar Level Gauge User Manual Cover LoopRadar

Rosemount Tank Radar AB Radar Level Gauge Cover LoopRadar

Preliminary users manual

User´s GuidePreliminary edition
(i)User´s GuideFirst editionEdition 1. Ref. No: 307010ECopyright © April 2000Saab Marine Electronics AB
(ii)Edition 1. Ref. No: 307010ECopyright © April 2000Saab Marine Electronics ABThe contents, descriptions and specifications within this manual is subject tochange without notice. Saab Marine Electronics AB accepts no responsibility forany errors that may appear in this manual.TrademarksHART is a registered trademark of HART Communication Foundation.LoopRadar is a trademark of Saab Marine Electronics AB.TankRadar is a registered trademark of Saab Marine Electronics AB.Spare PartsAny substitution of non-recognized spare parts may jeopardize safety. Repair, e.g.substitution of components etc., may also jeopardize safety and is under no cir-cumstances allowed.Saab Tank Control will not take any responsibility for faults, accidents, etc. causedby non-recognized spare parts or any repair which is not made bySaab Tank Control.SafetyThis manual applies to equipment covered by certificate numberSIRA 00ATEX2052X.The equipment may be used with flammable gases and vapours with apparatusgroups IIA, IIB and IIC and with temperature classes T1 to T4 inclusive.The equipment is only certified for use in ambient temperatures in the range-40 °C to +70 °C and should not be used outside this range.The Saab LoopRadar transmitter must be installed by suitably trained personnelaccording to the instructions in this manual and in accordance with the applicablecode of practice. The certificate number has an ’X’ suffix which indicates thatspecial conditions for cable capacitance apply. For specification of cable capacitancesee the certificate.Repair of this equipment shall be carried out in accordance with the applicable codeof practice.
( iii )Edition 1. Ref. No: 307010EThe various warning messages shown in the Users Guide are indicated as follows:Indicates that incorrect usage may result inpersonal injury or malfunctioning instruments.!CautionIndicates a potentially hazardous situationwhich could result, if not avoided, in deathor serious injury.!Warning!WarningDon´t openlower nutif tank ispressurisedor containshazardousproduct.
(iv)Edition 1. Ref. No: 307010EContentsAbout this manual....................................................... vi1 Product Description ...................................... 1-11.1 Features ................................................................................ 1-11.2 Measurement Principle.......................................................... 1-22 Mechanical Installation ................................. 2-12.1 Requirements ........................................................................ 2-12.2 Dimensions ........................................................................... 2-32.3 Tools ...................................................................................... 2-42.4 Mounting the Cone Antenna .................................................. 2-52.5 Installation Hints..................................................................... 2-73 Electrical Installation..................................... 3-13.1 Connecting the LoopRadar ................................................... 3-13.2 Cables ................................................................................... 3-33.3 Load ...................................................................................... 3-33.4 Power supply ......................................................................... 3-33.5 Grounding .............................................................................. 3-34 Transmitter Setup .......................................... 4-14.1 Configuration ......................................................................... 4-24.1.1 General Settings ........................................................ 4-24.1.2 Basic Tank Geometry ................................................ 4-24.1.3 Advanced Tank Geometry ........................................ 4-34.2 Analog Output........................................................................ 4-4
(v)Edition 1. Ref. No: 307010E4.3 Volume Calculation ................................................................ 4-54.4 Disturbance Echo Handling. .................................................. 4-74.4.1 Noise Table ................................................................ 4-75 Using the Display Panel ................................ 5-15.1 Display Panel......................................................................... 5-15.1.1 Display ....................................................................... 5-15.1.2 Keys ........................................................................... 5-25.2 Basic Key Parameter List ...................................................... 5-35.3 Navigating the Display Panel Menus ..................................... 5-55.4 Configuration ......................................................................... 5-65.5 Volume Calculation ................................................................ 5-85.6 Setting up the Analog Output............................................... 5-105.7 Disturbance Echo Handling ................................................. 5-115.7.1 Setting up a Noise Threshold Table ....................... 5-116 Technical Information ................................... 6-17 Troubleshooting ............................................ 7-1Index ............................................................................... IAppendix 1: Key Parameters ................................. A1-1
(vi)Edition 1. Ref. No: 307010EAbout this manualThe main purpose of Users Guide is to act as guide to installing and operatingthe Saab LoopRadar. It is not intended to cover service tasks such as changingcircuit boards or internal software.Chapter 1 reviews some basic concepts of radar based level gauging.Chapter 2 describes how to assemble a gauge and how to mount it on a tank.Chapter 3 describes the electrical installation.Chapter 4 describes the parameters that need to be configured, how to handledisturbing echoes and various options for volume calculation.Chapter 5 describes how to use the Display Panel to configure the Saab Loopradar.Chapter 6 provides technical information.Chapter 7 lists the various error codes that may appear.
1-1Edition 1. Ref. No: 307010EProduct Description1 Product DescriptionThe LoopRadar transmitter uses a non-contact level gauging measurement tech-nique based on the principle of pulsed microwaves. It is loop-powered and easyto install and can be used for many types of level measurement applications. TheLoopRadar is safe for humans and has no environmental impact. Propagation ofmicrowaves is virtually unaffected by temperature, pressure or gas characteristicsin the tank resulting in excellent measurement stability.1.1 FeaturesLoop-PowerThe LoopRadar only needs one two-wire line for both power supply and outputsignal. The LoopRadar is powered by a PLC or a power supply unit.CommunicationThe LoopRadar has a 4-20 mA current output and a HART protocol interface fordigital data transmission. The transmitter can be configured by using a HARTcommunicator (Device Descriptor in preparation), a PC-based setup software orthe Display Panel.LoopRadar withanalog output signal4-20 mA and HARTinterface.Volume calculation functionA calculation function transforms the measured level into the corresponding prod-uct volume. The volume calculation is based on one of the standard tank shapesSphere, Vertical cylinder or Horizontal cylinder. The LoopRadar also offers thepossibility to calculate the product volume for an arbitrary tank shape by specifyinga Tank Capacity Table consisting of up to 20 levels and corresponding volumes.
1-2Edition 1. Ref. No: 307010EProduct Description1.2 Measurement PrincipleUllageLevel1 ns1 µsPulse sequenceDistance=c* 2tA LoopRadar gauge is installed at the tank top. It emits short microwave pulsestowards the product surface in the tank. The emitted microwaves hit the productsurface and are reflected back to the antenna for subsequent processing by thetransmitter electronics. The time from transmission to reception (t) is detected bya micro-processor and is converted to the distance between the transmitter andthe product surface. The measured distance is often referred to as the Ullage.The product level is calculated by using the following relation between tank heightand Ullage:Level=Tank Height - Ullage.Tank Height
2-1Edition 1. Ref. No: 307010EMechanical Installation2 Mechanical Installation2.1 RequirementsMounting positionDo not mount the transmitter at the center of the tank or close to the tank wall.This may reduce the measuring range or the accuracy and makes the transmittermore sensitive to disturbing echoes. We recommend that the transmitter ismounted so that the antenna tip is located at least 0.5 m from the tank wall.Socket requirementsThe antenna tip should be located outside thenozzle (10 mm or more ).If the antenna is located inside the nozzlethe antenna tip may cause disturbing echoeswhich will negatively affect measurementperformance.Free space requirementsThe transmitter should be mounted so that noobstacles are present in the radar beam.Obstacles in the radar beam may reduce themeasuring range.DistanceDiameter of radiated area (m).         $QWHQQD7\SH'LVWDQFHP$QWHQQD7\SH&RQH&RQH&RQH+DOI3RZHU%HDP:LGWK'HJUHHVHalf Power Beam Width.Antennatip10 mmor more500 mm or moreHalf Power Band Width
2-2Edition 1. Ref. No: 307010EMechanical InstallationMaximum measuring distanceMaximum measurement distance is determined by antenna type, dielectric con-stant of the product and product surface conditions. Please refer to the tablebelow. These values are rough estimates, and are strongly influenced by themeasuring conditions.a) Dielectric constant 1.9 - 4.0 Oil, gasoline and other hydrocarbons,petrochemicalsb) Dielectric constant 4.0 - 10 Alcohols, concentrated acids, organicsolventsc) Dielectric constant > 10 Water based liquids, dilute acids, acetone4" Cone 6" Cone 8" Cone01020010200102001020abc abc abc(m)Rodabc4" Cone 6" Cone 8" Cone01020010200102001020abc abc abc(m)RodabcCalm surfaceTurbulent surface
2-3Edition 1. Ref. No: 307010EMechanical Installation2.2 DimensionsWeightLoopRadar(except antenna) 2.5 kg4 Cone antenna 0.8 kg6 Cone antenna 1.2 kg8 Cone antenna 1.8 kg148 mm 172 mmØ 52 mmØ 154 mm238 mm106 mm226 mm346 mmØ 92 mmØ 140 mmØ 188 mm8 Cone antenna6 Cone antenna4 Cone antennaØ 265 mmØ 215 mmØ 59 mm
2-4Edition 1. Ref. No: 307010EMechanical InstallationFlangeThe LoopRadar gauge is mounted by using a flange according to the followingspecifications:Maximum thickness : 29mm (ANSI Class-150 8 ).2.3 ToolsThe following tools are needed for installation of LoopRadar: Hexagon socket screw keys(-4) Adjustable wrench (for locking nut) Pipe wrench (for neck of cone antenna) Screw driver (-) width 3mmØ 54 mm
2-5Edition 1. Ref. No: 307010EMechanical Installation2.4 Mounting the Cone Antenna1Make sure that the followingparts are available wheninstalling the gauge.2Mount the flange on top of thecone plate.Secure the flange with thelocking nut and make surethat the nut is fitted tightly tothe flange.Make sure that the PTFE Sealand the O-rings are not dam-aged. Damaged PTFE Seal orO-ring may cause gas leakagefrom pressurized tanks.!CautionMake sure that the bottomside of the flange is flat andall parts are clean and dry inorder to avoid gas leakagefrom pressurized tanks.!CautionTransmitter Locking nutFlange GasketNuts and boltsUnion nutSet screwO-ringSealLocking nutFlangeNote!No gasket here.Cone plateCone antenna
2-6Edition 1. Ref. No: 307010EMechanical Installation3Carefully insert the transmitterantenna adapter into thesleeve and make sure that itfits well into the cone antenna.Secure the antenna adapterwith the union nut.Secure the union nut with theset screw.4Place the gasket on the tanknozzle.Carefully fit the transmitterwith flange and cone antennaon the tank nozzle.Tighten the screws and nuts.Make sure that the O-ring andthe inside of the sleeve areclean in order to avoid gasleakage when using LoopRadarin pressurized tanks.!CautionDo not loosen union nut whenthe tank is pressurized.!WarningGasketTank nozzleTransmitterFlangeCone antennaTransmitterUnion nutSet screwO-ringsSleeveAntennaadapter
2-7Edition 1. Ref. No: 307010EMechanical Installation2.5 Installation HintsIf obstacles are present in the radar beam, the signal reflected from the productsurface may be weaker than the signal from the disturbing object. In this case theLoopRadar may lock on the disturbing object instead of the liquid surface. Toreduce the influence of the disturbing object use the following method:Thin pipesReflections of microwaves fromelongated metal like thin pipesare strongest when the axis andelectric field are parallel. Thedirection of the electric field isshown in the figure to the right.Mount the LoopRadar in a direc-tion where the electric field andthe obstacle are not parallel. Thatway the false echo from the ob-stacle will have less influence onthe measurement performance.Front Cover Cone antennaElectric FieldCorrectA-planePipeA-planetop viewPipeWrongPipe
2-8Edition 1. Ref. No: 307010EMechanical InstallationShoulders and StrutsFlat surfaces may cause strongfalse echoes. In order to reducethe impact of such false echoesyou can mount a metal plate abovethe obstacle as shown in the figure.Correct WrongReflectorShoulder
3-1Edition 1. Ref. No: 307010EElectrical Installation3 Electrical Installation3.1 Connecting the LoopRadar1Remove the front cover.3Connect the shield to theground terminal.4Tighten the front cover.Please handle it carefullyso that the gasket andwindow are not removed.Make sure that the coveris fully tightened so thatthe housing is properlysealed by the gasket.HousingTerminal blockHARTmodemPowersupplyHand-held communicator250 W2Connect the cable to theterminal block trough thecable entry.Ground terminalGround terminalTerminal blockCable entry
3-2Edition 1. Ref. No: 307010EElectrical InstallationExample-1 Connection to power supply unit. LoopRadar mounted in non-hazardousarea.Example-2 Connection to PLC etc. LoopRadar mounted in hazardous area.Powersupply> 250 W4 - 20 mAHARTmodemHand-held HARTcommunicatorLoopRadarAnalog instru-ment or DCSsystem (Active)IsolatorHARTmodemNon-hazardous area Hazardous area4 - 20 mALoopRadarHand-held HARTcommunicator
3-3Edition 1. Ref. No: 307010EElectrical Installation3.2 CablesCable Use shielded twisted pair for connection.Cable entry 2 x M20 x 1.5, NPT 1/2 " (cable diameter 5-9 mm)3.3 LoadMinimum load for HART 250 WMaximum load (Non-Ex) 810 WMaximum load (Ex) 620 W3.4 Power supplySupply voltage (Non-Ex) 1836 VDCSupply voltage (EX) 1830 VDCIS parameters Ui=30 V, Ii=110 mA, Pi=825 mW, Li=0,Ci=see certificate3.5 GroundingThe terminal must be connected to ground before it is connected to other equip-ment.
3-4Edition 1. Ref. No: 307010EElectrical Installation
4-1Edition 1. Ref. No: 307010ETransmitter Setup4Transmitter SetupThe LoopRadar can easily be installed by using one of the following tools: LoopRadar Display Panel. (See chapter 5 for further information). PC Setup Software. (In preparation). HART Handheld Communicator (Device Descriptor in preparation).Installing a Loopradar transmitter includes the following tasks: Configuration Analog Output parameters Volume calculation settings Advanced settings (for example disturbance echo handling)
4-2Edition 1. Ref. No: 307010ETransmitter Setup4.1 Configuration4.1.1 General SettingsOutput Parameter Measurement value to be shown on the Display andAnalog OutputMeasurement Unit Measurement unit, meter or feet.Antenna Type 4", 6" and 8" Cone are available.Maximum levelLoopRadar Reference PointHold Off Distance HProduct SurfaceTank Height R4.1.2 Basic Tank GeometrySpecify the following parameters:Tank height R The distance from LoopRadar Reference Point tothe tank bottom. The LoopRadar Reference Point isdefined as the underside of the flange.Hold Off Distance H The distance from the LoopRadar Reference Pointto the maximum product level.See chapter 5 Using the Display Panel for information on how to use the DisplayPanel for configuration of the Loopradar.
4-3Edition 1. Ref. No: 307010ETransmitter Setup4.1.3 Advanced Tank GeometryMin. Level Offset C The C distance is used to extend the measurementrange beyond the Zero Level Reference Point downto the tank bottom. C is defined as the distancebetween the Zero Level and the tank bottom. SetC=0 if you do not want to present negative levelsbelow the Zero Level reference point, or if you usethe tank bottom as zero level reference point.Reference Distance G In most cases the LoopRadar Reference Point isused as the upper reference point. However, theLoopRadar gauge offers the option to use a nozzlefor hand dipping as the upper reference point.G is the distance between the LoopRadar Refer-ence Point and the Tank Ullage Reference Point.The LoopRadar Reference Point is located at theunderside of the flange.Tank height R The distance from the Tank Ullage Reference Pointto the Zero Level.LevelLoopRadar Reference PointHMeasuring RangeProduct SurfaceUllageCRZero LevelTank Ullage Reference PointG
4-4Edition 1. Ref. No: 307010ETransmitter Setup4.2 Analog OutputAnalog Output Parameter Specify the source parameter for the analog output.Level is the default parameter. Ullage, Volume orAmplitude are also available.Minimum Output Set the measured value that corresponds to 4 mA.Maximum Output Set the measured value that corresponds to 20 mA.Alarm Selection Set the alarm mode for the analog output currentwhen a measurement error occurs.Low: the output current is set to 3.9 mA.High: the output current is set to 22 mA.Hold last value: the output current is set to themeasured value at the time when the error occurs.See chapter 5 Using the Display Panel for information on how to use the DisplayPanel for setting the Analog Output parameters.
4-5Edition 1. Ref. No: 307010ETransmitter Setup4.3 Volume CalculationThe LoopRadar offers four methods to calculate the productvolume depending on the tank type. For presentation of vol-ume values you can choose cubic meter, gallons, barrels orcubic feet.Predefined Tank ShapesSpherical Tank The volume is calculated byspecifying tank diameter.Vertical cylinder Tank The volume is calculated byspecifying tank diameter.Horizontal cylinder Tank The volume is calculated byspecifying tank diameter andthe tank length.Offset LevelIf for some reason zero volume should not correspond to the Zero Level, if you forexample want to add the sump volume into the total volume value, an Offset Levelcan be introduced. The Offset level specifies the distance between the zero leveland the level that corresponds to zero volume.
4-6Edition 1. Ref. No: 307010ETransmitter SetupTank Capacity TableIn order to obtain more accurate volume calculations you can create a table oflevel values and corresponding volumes. A maximum of 20 points can be speci-fied.L1 L2 L3 L4V2V1V3V4VolumeLevelBetween the points linearly interpolated values are calculated.At least two points must be entered for the Tank Capacity Table.See chapter 5 Using the Display Panel for information on how to use theDisplay Panel to set up the Loopradar transmitter for volume calculations.
4-7Edition 1. Ref. No: 307010ETransmitter Setup4.4 Disturbance Echo Handling. When disturbing echoes appear in the approved measuring range they can befiltered out by setting up a Noise Table.4.4.1 Noise TableA Noise Table adjusts the threshold level at various parts of the measurementrange. By setting the threshold level to an appropriate value the disturbing echowill be suppressed by the transmitter.A Noise Table is defined by ullage points and signal amplitude threshold val-ues. A maximum of 10 points can be specified. Linear interpolation is used be-tween the points. Make sure that the noise table box around a disturbing echo isbig enough to hide the disturbing echo, see illustration below.If a disturbing echo appears you should start by checking the ullage and thecorresponding amplitude of the detected signal. This provides information aboutthe position of the disturbance and the noise threshold required to suppress thedisturbing echo.Note! The transmitter may temporarily loose track of the surface when it passes the noise threshold.+ 5 dBSignal AmplitudeUllage (m)Point 1Point 2 Point 3Point 4Radar signalNoise tablePoint 1 Point 2Point 3Point 4Signal Amplitude
4-8Edition 1. Ref. No: 307010ETransmitter Setup
5-1Edition 1. Ref. No: 307010EUsing the Display Panel5 Using the Display PanelThe Display Panel can be used for configuration of the LoopRadar transmitter aswell as for viewing tank data. The keys allow you to navigate through the differentmenus and to enter desired values for various parameters.5.1 Display Panel5.1.1 DisplayBar graph, measured data and measuement unit are displayed during normaloperation. The last measured value flashes on the display when the gauge is insearch mode.When the Display Panel is used in configuration mode, menu number or regis-tered data is displayed.LCDKeys
5-2Edition 1. Ref. No: 307010EUsing the Display Panel5.1.2 Keys1. ENT (ENTER)Press the Enter key to change from measurement mode to configurationmode.You can also use this key to move from the main menu to various sub menus.By pressing the Enter key the cursor can be moved from one digit to theother when entering a new parameter value.2. ESC (ESCAPE)Press the Escape key to change from configuration mode to measurementmode.Use the Escape key to move from sub menus to the main menu.3. UpThe up button increases menu numbers and the value of a flashing digit.4. Down.The down button decreases menu numbers and the value of a flashing digit.Measurement unitMeasured valueBar graph
5-3Edition 1. Ref. No: 307010EUsing the Display Panel5.2 Basic Key Parameter ListBy using the Display Panel keys you can make a complete configuration of theLoopRadar. The various settings are grouped into seven main menus:[1--] Configuration Basic configuration of tank dimensions, antenna typeand output parameter.[2--] Analog Configuration of analog output signal.[3--] Volume Specification of method for volume calculations.[4--] Calibration Only for service actions. See Appendix 1 for furtherinformation.[5--] Advanced Only for service actions. See Appendix 1 for furtherinformation.[6--] Noise Option to create a noise table in order to suppressdistinct disturbing echoes.[7--] Service Only for service actions. See Appendix 1 for furtherinformation.
5-4Edition 1. Ref. No: 307010EUsing the Display Panel3
5-5Edition 1. Ref. No: 307010EUsing the Display Panel5.3 Navigating the Display Panel MenusMeasuringDataCONFIG[1--] Analog[2--] xx[x--] Service[7--]ESCENTMeas. ModeConfig. ModeMain menuSub menuInput stageMeasuringDataCONFIG[1--]OutputParameter[1-1]ESCENTENTESCUse the ENT and ESC keys to move up and down the menu tree.Press the ENT key to switch from measurement mode to configuration mode.Press the ESC key to return to measurement mode.Use the and the keys to increment menu number.Main menuMeasurement ModeConfiguration Mode
5-6Edition 1. Ref. No: 307010EUsing the Display Panel5.4 ConfigurationOutput parameter1. Choose sub menu [1-1].2. Choose one of the following parameters to be displayed on the panel:0: Level, 1: Ullage, 2: Volume (%), 3: Current, 4: Amplitude.Antenna type1. Move to sub menu [1-2].2. Choose one of the following antennas:0: 4 inch Horn Antenna.1: 6 inch Horn Antenna.2: 8 inch Horn Antenna.Measurement Unit1. Choose sub menu [1-3].2. Choose one of the following options:0: meter.1: feet.Tank Distances1. Choose sub menu [1-5] and enter the tank height R. Measure R from theLoopRadar Reference Point to the tank bottom.2. If the Zero Level reference point is located above the tank bottom, choosesub menu [1-6]. (This may be the case if for example a Datum Plate isused).In order to be able to measure levels below the Zero Level, enter the Cdistance from the Zero Level to the tank bottom.If C is set to 0, levels below the zero reference point will be presented as 0.See chapter 4.1.2-3 for more information on the definition of tank geometry pa-rameters.Hold Off Distance1. Choose sub menu [1-7].2. Enter the Hold Off distance H. The Hold Off distance is defined as the dis-tance from the LoopRadar Reference Point to the upper limit of the Ap-proved Measurement Range.See chapter 4.1 for further information on the definition of tank geometry.
5-7Edition 1. Ref. No: 307010EUsing the Display PanelExample-1To set the tank height R to 6.275m do the following:.H\ 'LVSOD\     P 0HDVXULQJ/HYHOP1RUPDORSHUDWLRQPRGH(17 >@ 0DLQPHQXQXPEHU&RQILJXUDWLRQPRGH(17 >@D>@D>@D>@D>@(17       'HIDXOWYDOXH(17 ³´IODVKLQJDòò3XVKWLPHV(17 ¶ò(17 Dò(17  ¶ò(17 ¶(17       &KHFNWKDWILJXUHVVWRSIODVKLQJ(6& >@(6& >@(6&      0HDVXULQJ/HYHOP1RUPDORSHUDWLRQPRGH>;;@0DLQPHQXQXPEHU6XEPHQXQXPEHU
5-8Edition 1. Ref. No: 307010EUsing the Display Panel5.5 Volume CalculationTank Type1. Choose sub menu [3-1] to specify calculation method.2. Choose one of the following options:0 No volume calulation is performed.1Volume calculation is based on the shape of a Vertical Cylinder.2Volume calculation is based on the shape of a Spherical tank.3 Volume calculation is based on the shape of a HorizontalCylinder.4Volume calculation is based on a table of level values and corre-sponding volumes. See section Tank Capacity Table for furtherinformation.Tank DimensionsDiameter Choose sub menu [3-6] to specify tank diameter forVertical Cylinder or Spherical tank.Length Choose sub menu [3-7] to specify length for Hori-zontal Cylinder tank.OffsetChoose sub menu [3-8] to specify a level offset if you do not want the volumeto be zero at the Zero Level reference point.Tank Capacity Table1. Choose sub menu [3-2] in order to specify the number of linearization pointsfor the Tank Capacity Table.2. Choose sub menu [3-3] and enter the level values. Enter as many points asspecified in sub menu [3-2].3. Choose sub menu [3-4] and enter the volumes that correspond to the levelvalues entered in sub menu [3-3].4. Choose sub menu [1-1] to choose volume as output parameter on the Dis-play Panel.5. Return to measurement mode.
5-9Edition 1. Ref. No: 307010EUsing the Display PanelExample-2To set the second Volume point to 2345.67m3 do the following:A volume point can be set from 00000.00 to 99999.99..H\ 'LVSOD\     0HDVXULQJ/HYHOP1RUPDORSHUDWLRQPRGH(17 >@Dò >@ 9ROXPH0DLQPHQX(17 >@Dò >    @ 9ROXPHSRLQW6XEPHQX(17 >    @ 9ROXPHSRLQWD>    @ 9ROXPHSRLQW(17       'HIDXOWYDOXH(17 ³´LVIODVKLQJDò  3XVKWLPHV(17 Dò   3XVKWLPHV(17 Dò 3XVKWLPHV(17 Dò  3XVKWLPHV(17 Dò   3XVKWLPHV(17  Dò 3XVKWLPHV(17 (17  &KHFNWKDWILJXUHVVWRSIODVKLQJ(6& >@(6& >@(6& >@(6&      0HDVXULQJ/HYHOP1RUPDORSHUDWLRQPRGH
5-10Edition 1. Ref. No: 307010EUsing the Display Panel5.6 Setting up the Analog OutputOutput parameter1. Choose sub menu [2-1].2. Choose one of the following parameters as source signal for the AnalogOutput:0: Level,1: Ullage,2: Volume (%),3: Amplitude.Output range1. Choose sub menu [2-2] to enter the Minimum Output value corresponding tothe Analog Output value 4 mA.2. Choose sub menu [2-3] to enter the Maximum Output value corresponding tothe Analog Output value 20 mA.Setting up the Alarm Mode1. Choose sub menu [2-4] to specify Alarm mode for the Analog Output.2. Choose one of the following options:0: High. The current is fixed at 22 mA when an alarm is activated.1: Low. The current is fixed at 3.9 mA when an alarm is activated.2: Hold Last Value. The analog output current is fixed at the present value.
5-11Edition 1. Ref. No: 307010EUsing the Display Panel5.7 Disturbance Echo Handling5.7.1 Setting up a Noise Threshold TableIf the transmitter has locked to a disturbing echo you can create a Noise ThresholdTable in order to suppress the disturbing echo:1. Do the following to check where the disturbing echo is located and the corre-sponding radar signal amplitude:1. Choose sub menu [1-1] and set the Output Parameter to Ullage.2. Note the Ullage value.3. Choose sub menu [1-1] and set the Output Parameter to Amplitude.4. Note the Amplitude value.5. Choose sub menu [1-1] and set the Output Parameter to the desiredvalue (see the Key Parameter list).Now you can start creating the noise table.2. Choose sub menu [6-1].3. Specify the number of points you want to use for the Noise Threshold Table.In order to suppress a single peak signal four points is sufficient. For morecomplicated noise tables you can use up to ten points.4. Choose sub menu [6-2] and enter the ullage values that correspond to thedesired noise table break points. The points must be added in consecutiveorder. Use a margin of ± 0.3 meter, see illustration below.5. Choose sub menu [6-3] and enter the amplitude threshold values that corre-spond to the desired noise table break points. A margin of + 5 dB is suffi-cient in most cases.+ 5 dBSignal AmplitudeUllagePoint 1Point 2 Point 3Point 46. Return to measuring mode and check that the transmitter detects the productsurface.
5-12Edition 1. Ref. No: 307010EUsing the Display PanelExample.A disturbing echo is located at Ullage=3 m. The signal amplitude of the disturbingecho is 3 dB. The following Noise Theshold Table is created to suppress thisecho:Sub menu [6-1]: 4 (4 points in the noise table).Sub menu [6-2]:Point 1: [600]=2.7.Point 2: [601]=2.7.Point 3: [602]=3.3.Point 4: [603]=3.3.Sub menu [6-3]:Point 1: [610]=0 dB.Point 2: [611]=8 dB.Point 3: [612]=8 dB.Point 4: [613]=0 dB.3 dB0 dB8 dB2.7 3 3.3Point 1Point 2 Point 3Point 4UllageSignal Amplitude
6-1Edition 1. Ref. No: 307010ETechnical Information6 Technical InformationSystemOperating frequency  5.8 GHz 6.3 GHz (USA only)Half-power beam width  4 " Cone antenna: 34 deg 6 " Cone antenna: 22 deg 8 " Cone antenna: 17 degMeasuring range Max. 20 m (65 ')Serial communication HART communicationKey switch 4 keys for configurationDisplay 5 digits LCD and bar graphPowerSupply voltage 18..30 VDC(Ex) / 18..36 VDC(Non-Ex)Specification for HART  Ripple: 47..125 Hz Vpp=200 mV (measured at 500 ohm) Max.noise: 500 Hz..10 kHz Vrms=2.2 mV (measured at 500 ohm)OutputVariable Ullage / Level / Volume / Current /Signal amplitudeUnit Level, Ullage: m/ft. Volume: %. Current: mA.Signal amplitude: dB.Signal type Analog 4..20 mA, HARTResolution  Analog: 4 mA Digital: 1 mm (0.04")Update time 1 sAveraging time 1..120 s
6-2Edition 1. Ref. No: 307010ETechnical InformationSignal on alarm Hold/Low (3.9 mA)/High (22 mA)Load Minimum load for HART communication 250ohm.AccuracyMeasured error *)±10 mm (0.4")Linearity *)±10 mm (0.4")Repeatability *)±10 mm (0.4")Ambient temperature effect ±0.01% / 10 K*): Free-space reflection from flat metal surface, ambienttemperature 25 °C (77 °F), atmospheric pressure.Environment resistanceAmbient temperature -40..70 °C (-40..158 °F)Display Unit -20..70 °C (-4..158 °F)Storage temperature -40..80 °C (-40..176 °F)Tank temperature -40..150 °C (-40..302 °F)Tank pressure -0.1..1.0 MPa (-14..145 Psi)Water protection Designed for IP65, NEMA 4Vibration resistance IEC 68-2-6 /1GStandardEx iaInput Voltage (V)Load (Ohm)
6-3Edition 1. Ref. No: 307010ETechnical InformationElectromagnetic compatibility  Emission: EN 50081-1 Immunity: EN 50082-2Cable ConnectionCable type Shielded twisted pairCross-section area of cable: 0.2..2.5 mm2,(AWG24..14)Cable entry 2-M20X1.5, NPT 1/2" (cable dia. 5..9 mm)Ground cable Max. 4 mm2MaterialTransmitter Case AluminumCone antenna 316L stainless steelSealing parts PTFE, Viton O-ringCertificate and ApprovalsHazardous area certification  0518 II 1 G- EEx ia IIC T4. (Tamb - 40 ºC to + 70 ºC)- Ui=30 V, Ii=110 mA, Pi=825 mW, Li=0,Ci=see certificate- Certificate No. SIRA 00ATEX2052X FM: IS Class I, Division 1, Group A-D(In preparation)Telecommunication  BZT (in preparation) FCC (in preparation)
6-4Edition 1. Ref. No: 307010ETechnical Information
7-1Edition 1. Ref. No: 307010ETroubleshooting7 TroubleshootingLCD status messages[E--] Normal Operation[E01] Internal Error. Serious error. Please contact servicedepartment.[E02] Memory Error. Serious error. Please contact servicedepartment.[E03] Receive Error. No measure data. Please contact service[E04] Tank CapacityTable Error. Incorrect setting of Tank Capacity Table.[E05] Noise Table Error. Incorrect setting of noise table.[E99] Searching. Searching for Echo
7-2Edition 1. Ref. No: 307010ETroubleshooting
Index-IEdition 1. Ref. No: 307010EIndexIndexAAdvanced............................................................................................................................................ 5-3Analog ...................................................................................................................................... 5-3, A1-1Analog Output ............................................................................................................................ 4-4, 5-10alarm ............................................................................................................................................... 4-4alarm mode ................................................................................................................................... 5-10calibration ...................................................................................................................................... 5-10Maximum Output ............................................................................................................................. 4-4Minimum Output .............................................................................................................................. 4-4output parameter ........................................................................................................................... 5-10output range .................................................................................................................................. 5-10source ............................................................................................................................................. 4-4Analog Output Parameter .................................................................................................................... 4-4Antenna Type ...................................................................................................................................... 4-2Antenna type....................................................................................................................................... 5-6CC distance........................................................................................................................................... 4-3Cable .................................................................................................................................................. 3-3Cable entry ......................................................................................................................................... 3-3Calibration ........................................................................................................................................... 5-3Communication ................................................................................................................................... 1-1Configuration ....................................................................................................................................... 5-6current output ...................................................................................................................................... 1-1DDisplay Panel ...................................................................................................................................... 5-1keys ................................................................................................................................................ 5-1menus ............................................................................................................................................. 5-5Disturbance Echo Handling ............................................................................................................... 5-11Disturbance echo handling .................................................................................................................. 4-7EENT .................................................................................................................................................... 5-2ENT key ............................................................................................................................................. 5-5ESC .................................................................................................................................................... 5-2ESC key ............................................................................................................................................. 5-5GG distance .......................................................................................................................................... 4-3Grounding ........................................................................................................................................... 3-3HHART .................................................................................................................................................. 1-1minimum load .................................................................................................................................. 3-3Hold Off .............................................................................................................................................. 4-2Hold Off Distance................................................................................................................................ 5-6Horizontal cylinder Tank ...................................................................................................................... 4-5
Index-IIEdition 1. Ref. No: 307010EIndexKKey Parameter List .................................................................................................................... 5-3, A1-1Keys ................................................................................................................................................... 5-2LLoad .................................................................................................................................................... 3-3Loop-Power ......................................................................................................................................... 1-1Loop-powered ...................................................................................................................................... 1-1MMaximum load .................................................................................................................................... 3-3Measurement principle ........................................................................................................................ 1-2Measurement Unit ........................................................................................................................4-2, 5-6Minimum load ..................................................................................................................................... 3-3NNoise .................................................................................................................................................. 5-3Noise Table ......................................................................................................................................... 4-7Noise threshold table ........................................................................................................................ 5-11OOutput Parameter ................................................................................................................................ 4-2Output parameter ................................................................................................................................ 5-6PPLC .............................................................................................................................................1-1, 3-2Power supply....................................................................................................................................... 3-3power supply ................................................................................................................................1-1, 3-2pulsed microwaves ............................................................................................................................. 1-1SService ............................................................................................................................................... 5-3Spherical Tank..................................................................................................................................... 4-5TTank Capacity Table ............................................................................................................................ 4-6Tank Distances ................................................................................................................................... 5-6Tank height R ...............................................................................................................................4-2, 4-3Transmitter Setup ................................................................................................................................ 4-1VVertical cylinder Tank .......................................................................................................................... 4-5Volume................................................................................................................................................ 5-3Volume Calculation ............................................................................................................................. 5-8level offset ...................................................................................................................................... 5-8tank dimensions .............................................................................................................................. 5-8tank type ......................................................................................................................................... 5-8Volume calculation .......................................................................................................................1-1, 4-5ZZero Level Reference Point ................................................................................................................. 4-3
A1-1Edition 1. Ref. No: 307010EAppendix 1: Key ParametersAppendix 1: Key ParametersBy using the Display Panel keys you can make a complete configuration of theLoopRadar. The various settings are grouped into seven main menus:[1--] Configuration Basic configuration of tank dimensions, antennatype and output parameter.[2--] Analog Configuration of analog output signal.[3--] Volume Specification of method for volume calculations.[4--] Calibration Calibration of analog output range and calibration oflevel measurements.[5--] Advanced Advanced configuration for improving measurementperformance in difficult environments.[6--] Noise Option to create a noise table in order to suppressdistinct disturbing echoes.[7--] Service Special functions for service actions.$QWHQQD7\SH >@LQFK+RUQ$QWHQQDLQFK+RUQ$QWHQQDLQFK+RUQ$QWHQQD0HDV8QLW >@ PHWHUIHHW* >@ WRP5&* P5 >@ WRP5&* P& >@ WRP5&* P+ >@ WRP$QDORJ2XWSXW3DUDPHWHU >@/HYHO8OODJH9ROXPH$PSOLWXGH0LQLPXP2XWSXW >@ WRP0D[LPXP2XWSXW >@ WRP$ODUP6HOHFWLRQ >@+LJKP$/RZP$+ROGODVWYDOXH)L[HG&XUUHQW2XWSXW >@ WRP$)L[HGZKHQP$&21),*85$7,21 >@>@$1$/2*7LWOH 0HQX&RGH ,QSXW9DOXH2XWSXW3DUDPHWHU >@/HYHO8OODJH9ROXPH&XUUHQW$PSOLWXGH3DUDPHWHU 6XE0HQX 6XE3DUDPHWHU ,QSXW
A1-2Edition 1. Ref. No: 307010EAppendix 1: Key Parameters3
Saab Tank Control Local Representative:First edition. February 2000.Ref. no. 307010 E.Saab Tank ControlBox 13045S-402 51 GöteborgSWEDENPhone: + 46 31 337 00 00Fax: + 46 31 25 30 22e-mail: sales.stc@marine.combitech.seInternet: http://www.saab.tankradar.comMFR. TOKIMEC INC.Control Systems Division2-16-46, Minami-kamata, Ohta-ku,Tokyo 144-8551JAPANPhone: + 81 3 3737 8631Fax: + 81 3 3737 8666

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