Honeywell Enraf 973SR Tank level measuring gauge User Manual C MANUALS PDF 632 V10 WPD
Honeywell Enraf Tank level measuring gauge C MANUALS PDF 632 V10 WPD
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![SafetyPage 10WarningDo not use the instrument for anything else than its intended purpose.CautionThe 973 SmartRadar LT is an explosion proof instrument with intrinsically safe output/input circuits.Modification to the instrument may only be carried out by trained personnel that is authorised by Enraf.Failure to adhere to this will invalidate the approval certificate.WarningIn hazardous areas it is compulsory to use personal protection and safety gear such as:hard hat, fire-resistive overall, safety shoes, safety glasses and working gloves.Avoid possible generation of static electricity. Use non-sparking tools and explosion-proof testers.Do not open any of the instrument covers while power is still connected.Make sure no dangerous quantities of combustible gas mixtures are present in the working area.Never start working before the work permit has been signed by all parties.Pay attention to the kind of product in the tank. If any danger for health, wear a gas mask and take allnecessary precautions.2 Safety2.1 Safety aspects of the 973 SmartRadar LTThe housing of the 973 SmartRadar LT is explosion proof:•II 1/2 GD EEx d [ib] IIB T4; KEMA 00ATEX2010 certified by KEMA, Netherlands•Class I, Division 1, Groups B, C, D T4, according to NEMA Type 4The covers of the SmartRadar LT are provided with blocking facilities which prevent unauthorised opening.Optionally, programming the 973 SmartRadar LT can be done by the 847 PET (Portable Enraf Terminal),which is an intrinsically safe device and is connected to the SmartRadar LT via an infra-red coupling.The emitted microwave energy is far below the accepted limits for exposure of the human body. Dependingon the type of antenna, a maximum radiation of 0.1 mW/cm is generated.22.2 Personal safetyThe technician must have basic technical skills to be able to safely commission the equipment. When the973 SmartRadar LT is installed in a hazardous area, the technician must work in accordance with (local)requirements for electrical equipment in hazardous areas.](https://usermanual.wiki/Honeywell-Enraf/973SR/User-Guide-242572-Page-10.png)
![PCrunning'Ensite'a) RS-232C communication b) RS-485 communication c) HART communicationPCrunning'Ensite'RS-232CTo oneSmartRadar LTTo one (or more)SmartRadar LTHost (RS-485)RS-232C/RS-485converterPCrunning'Ensite'To one (or more)SmartRadar LTHost(4-20 mA or HART )®RS-485HART®HARTmodem®250 WRS-232CFile Edit= Search Instruments Options Windows Help 15:23:18BaudrateBaudBaudBaudBaudBaudBaudBaudBaud()()()()()()()()150300600120024004800960019200Port()()()()()()()()Com 1Com 2Com 3Com 4Com 5Com 6Com 7Com 8Parity()()()()()NoOddEvenMarkSpace()()567812()()()()Databits Stopbit(s)Communication dialog [ENSITE.ECS]Communication- and protocolparameters[]Prefix:Suffix:<STX><CIU=0><TA=00><TOI=B><TOR=Z><ETX><BCC=1>OKSafe CancelTimeoutTurn around delayRetries350003(ms)(ms)CommissioningPage 16Figure 3.3 RS-232C / RS-485 and HART connections3.3.4 Programming communication parametersStart up the Ensite service tool and make contact with the SmartRadar LT to be configured. It is notrecommended to make a site scan, as the transmission address is still to be changed.Therefore, to make contact with the gauge, set the address manually in the port settings. This is onlypossible if the ExtendedSetup line in the ‘ENSITE.ECS’ file (in subdirectory ECS) is set to: True.Select this window by: Set up, Port settings, and go by mouse (or with the ‘TAB‘ key) to the Baud rate.Select 1200 baud when communicating via Enraf field bus and HART ;®select 19200 baud when communicating via RS-232C or RS-485.Select the used comport on the service PC.Then go to the line: Prefix.When communication via 858 or 880 CIU’s, fill the desired CIU address (in the example above, it is 0).When communicating via RS-232C / RS-485, default the CIU emulation address is disabled. Hence, deletethe part with the CIU address (delete: “ <CIU=0> “).When communicating via HART , delete the part with the CIU address. Make transmission address 00:®<TA=00> to communicate with the gauge set on default address. Click on OK.](https://usermanual.wiki/Honeywell-Enraf/973SR/User-Guide-242572-Page-16.png)
![CommissioningInstruction manual 973 SmartRadar LT Page 19 3.4.1 Selecting dimension and decimal separatorWhen one or more dimension items are changed, all items with related formats will be automaticallychanged and the values will be automatically converted to the new dimension. The same applies for thedecimal separator. The SmartRadar LT can be completely programmed in another dimension than it isintended to operate in. Just change the item LD (and any other dimension items).Item Name DescriptionW2= Protection level 2 Enter password 2 (default password: ENRAF2) LD= Level dimension Selects and converts the level dimension. This item containsone character, which can be:M : metres; format: sign X X X separator X X X XF : feet; format: sign X X X X separator X X XI : inches; format: sign X X X X X separator X XP : fractions; format: sign X X ' X X " X XDP= Decimal separator The item DP (decimal separator) can be:.: point or, : comma.EX Exit Exit protection levelStandard formatsThere are two standard formats; these formats are:•Standard floating point format: sign point M M M M M M M M E sign P P•Standard power format [dB]: sign X X X X point Xwhere: M = mantissaP = exponentX = value in decibel](https://usermanual.wiki/Honeywell-Enraf/973SR/User-Guide-242572-Page-19.png)
![BZProduct zoneAntennaminimumullageAntennazonelengthRadar referenceAZSFThreshold Product zone ZPAntennasurfaceAntennamin. ullageThresholdBottom zone (ZB)Bottom zoneoffset BZProduct zoneAntennazone lengthAZThresholdAntenna zoneZABottom zoneUllageTankzeroRadar referenceSignalstrength[dB]Bottom zone 0.44 m**) 3x Fourier distanceCommissioningInstruction manual 973 SmartRadar LT Page 23 WarningThe product reflection in the area “Antenna minimum ullage” will be indicated as product levelwith reduced accuracy and with warning code 7013: ‘level above measuring range’.Do not use this area as normal operational area because of the chance for a tank overflow.Figure 3.5 Zones and thresholds3.4.4 Zones and threshold settingsThe tank height is divided into 3 measuring zones: Antenna zone, Product zone and Bottom zone.In addition, ten obstruction zones can be programmed. Refer to figure 3.5.Please note that the X-axis from figure 3.5 indicates ullage. The zero point on the X-axis represents the"Radar reference". This is in most cases the nozzle height, with respect to the tank zero, on which theantenna is mounted (item PR; position radar). Refer also to figure 3.4.The antenna is located inside the antenna minimum ullage area. In this area, reflections from the antennawill decrease to almost zero at 0.5 to 2 metres distance from the antenna surface (depending on the type ofantenna).Figure 3.6 shows a so-called reflection diagram.The reflection diagram can be made with the Enraf service tool ”Ensite”.Not all reflections in the reflection diagram are selected as possible peak for the product level. A firstselection can be made by the threshold in each of the three zones. The thresholds should be set such thatnoise is filtered out. Only the peaks above a threshold setting are selected as possible product peak.The antenna zone length (item AZ) covers the area where antenna reflections are low but still present.The antenna zone threshold should cover the most of the antenna reflections.The antenna zone length does not need to extend till the antenna reflections are completely zero; onlyuntil the higher reflections are covered, such as those which might be expected in the product zone.Refer to example of reflection diagram in figure 3.6.](https://usermanual.wiki/Honeywell-Enraf/973SR/User-Guide-242572-Page-23.png)
![9080706050403020100RBZAZB0 2 4 6 8 10 12 [m]ZPProductreflectionBottom zonethreshold14TI : TK-200SmartRadar Refl. Diagram.[dB]08-11-1996 12:31BA417-1899001-D0: TK-20000.RD3:.18739640023FileSN7.450TankZeroMin. UllMax. SF.Antenna zonethresholdProduct zonethresholdAntennapositionZB0.6 mProductpeakTank zeroBottompeak[m]CommissioningPage 24Figure 3.6 Reflection diagramFigure 3.7 Bottom reflection and bottomzone adjustmentThe area between antenna zone length and the bottom zone is called "product zone". The product zonethreshold can be set with item ZP.The bottom zone is defined around tank zero. With bottom zone offset (item BZ) the position above tankzero is defined where the product zone ends and the bottom zone begins. The bottom zone extends threeFourier distances under tank zero (approximately 0.44 m).The bottom zone definition is important in applications where the bottom can be seen through the product inthe reflection diagram. At a low product level both the product reflection and the bottom reflection will thenbe present and the bottom reflection can be the strongest. In that case the bottom zone offset must be setlarge enough to make sure that when the tank is emptying the product peak enters the bottom zone first,before the bottom reflection enters the bottom zone. The bottom reflection peak enters the bottom zone inthe opposite direction and the peaks merge when the tank gets empty.The low speed of the radar signal through the liquid columngives the impression that the bottom looks further away than itreally is. When the tank is emptying the bottom appears torise. Figure 3.7 gives an example of such a situation. Item BZshould be set to a value of 0.6 to 1.0 metres (2' to 3' 4").When measuring the roof of a (internal) floating roof tank, themechanism of searching for a smaller peak in front of a largerpeak in the bottom zone is disabled. By setting the thirdelement in item 4S (2 level calculation decision switch) to ‘R’ndyou can declare the floating roof application.Reflections beyond the bottom zone are ignored for leveldetection. The bottom zone threshold can be set with item ZB.](https://usermanual.wiki/Honeywell-Enraf/973SR/User-Guide-242572-Page-24.png)
![9080706050403020100RBZAZB0 2 4 6 8 10 12 [m]ZPObstructionreflection14TI : TK-200SmartRadar Refl. Diagram.[dB]08-11-1996 12:32BA417-1899001-D0: TK-20006.RD3:.18739640023FileSN10.443TankZeroMin. UllMax. SF.OE.0.1OS.0.1OT.0.1ProductreflectionCommissioningInstruction manual 973 SmartRadar LT Page 27 Figure 3.8 Example of determining the position of an obstruction zoneFigure 3.8 shows a Reflection Diagram in which an obstruction is found at approximately 8 m level(6.25 m ullage). The product reflection is found at approximately 3.8 m level (10.44 m ullage).In this example, the following settings should be selected:Obstruction zone start at 5.85 m ullage (at least 0.4 m before the obstruction reflection).Obstruction zone end at 6.65 m ullage (at least 0.4 m after the obstruction reflection).Obstruction zone threshold at 5 dB.Item Name DescriptionW2= Protection level 2 Enter protection level 2 OS.0.1= Obstruction zone 1 start Format according to item LD.In the above example, obstruction zone 1 start should beprogrammed as 5.85 m (OS.0.1=+005.8500)OE.0.1= Obstruction zone 1 end Format according to item LD.In the above example, obstruction zone 1 end should beprogrammed as 6.65 m (OE.0.1=+006.6500)OT.0.1= Obstruction zone 1 threshold Format according to standard power format (dB).In the above example, the threshold of obstruction zone 1 is setat 5 dB (OT.0.1=+0005.0)OZ= Enable / disable obstr. zones Ten ASCII characters; either E (enable) or D (disable) theobstruction zone. For example: OZ=EDDDDDDDDDenables the first obstruction zoneEX Exit Exit protection level](https://usermanual.wiki/Honeywell-Enraf/973SR/User-Guide-242572-Page-27.png)
![90807060504030201000 2 4 6 8 10 12 [m]14TI : TNK-42SmartRadar Refl. Diagram.[dB]15-01-1999 12:57BA417-1899001-D1: TSS_032.RD3:.18739717004FileSNRBMin. UllMax. SF.ZAZPZBTankZero9.804OT4OT2OT1OT0 OT3CommissioningPage 28Figure 3.9 Example of reflection diagram with obstructions marked for AdvancedDSPIt is advised to use obstruction area’s for recognizable obstruction peaks that stay below the zone threshold(for instance: welding seams from the tank shell or stilling well, or roof truss). Obstructions from weldingseams can be recognized as they appear at regular intervals. Refer to figure 3.9.Select the peaks in the reflection diagram, which are known to be caused by an obstruction.Mark the obstructions with an obstruction zone. The length of the obstruction zone should be at least 0.8 m.As the bottom reflection and the antenna reflection belong to the obstructions, it is advised to defineobstruction zones in front of the antenna position and the bottom position.For the AdvancedDSP level calculation, the obstruction threshold should be set below the product threshold(e.g. at 5 dB).The reflection diagram in figure 3.9 shows three obstructions at equal distances. It can therefore beassumed that there is a fourth obstruction (at approximately 11 metres ullage), though not visible in thisdiagram because it is submerged. For a clear overview of all obstructions, it is recommended to make areflection diagram when the tank is empty.](https://usermanual.wiki/Honeywell-Enraf/973SR/User-Guide-242572-Page-28.png)
![BD =newa1-e2scalex1- bBD2origCommissioningPage 34Figure 3.12 Sign of scale error3.4.9 Additional adjustment with measurement on stilling wellThe propagation speed of the microwave, and hence the level measurement, depends on the inner diameterof the stilling well. The smaller the diameter, the lower the propagation speed, resulting in a larger measuredradar ullage.Item BD holds the inner diameter of the stilling well. When the real value of the inner diameter differs fromthe setting in item BD, the SmartRadar has a ‘gain’ error in the level measurement.It is therefore recommended to check the level reading of the SmartRadar LT with some manual dips atdifferent static levels over the full operating range.Note:After commissioning, the AdvancedDSP routines require one complete passage through the fulloperating level range, before the optimum accurate level reading is obtained.A level gain error, when present, can be corrected in two ways:•ullage correction table•adjustment of item BDFor the correction via the ullage correction table, refer to the description of items CW, CL and CS.The correct value for the stilling well diameter can be calculated with the following equation:where: Antenna typeab S06, S08, S10, S12 0.036568 0.0013372 H04, H02 0.017568 0.0003086BD : recalculated stilling well diameter [m]newBD : original stilling well diameter [m]origε: scale error (relative gain error)scaleexample: 10 mm gain error on 20 m range: ε = 20 / (20 + 0.010) = 0.9995.scalefor the sign of the scale error, refer to figure 3.12. If α is positive, the scale errorsign is positive; if a is negative, the scale error sign is negative.](https://usermanual.wiki/Honeywell-Enraf/973SR/User-Guide-242572-Page-34.png)
![BD =new0.0365681-2x1- 0.00133720.25421717 - 0.005= 0.2576 [m]CommissioningInstruction manual 973 SmartRadar LT Page 35 An example with an S10 antenna:Item BD is programmed as 254 mm.At 19 m level, the deviation of the SmartRadar LT level is: -2 mm;At 2 m level, the deviation of the SmartRadar LT level is: +3 mm.Note:After the new stilling well diameter is programmed, the SmartRadar LT must be set to level with the RLand AR sequence.Hence, the procedure to follow is:Item Name DescriptionW2= Protection level 2 Enter password 2. BD= Stilling well diameter Recalculated stilling well diameter.RL= Reference level Reference level from manual measurement.EX Exit Exit protection level.W2= Protection level 2 Enter password 2. CM Commissioning mode Enter commissioning mode to accept the reference level.AR Accept reference The reference level, given by item RL, will now be accepted asthe radar level.EX Exit Exit protection level.](https://usermanual.wiki/Honeywell-Enraf/973SR/User-Guide-242572-Page-35.png)
![9080706050403020100RB0 2 4 6 8 10 12 [m]14TI : TK-560SmartRadar Min-Max Diagram.[dB]08-11-1996 13:27BA417-1899001-D0: TK-56002.MMD:.18739535005FileSN6.926TankZeroMin. UllMax. SF.ZAZPZBService and troubleshootingPage 38CautionDo not damage the thread of the covers and 973 housing and keep the thread free of dirt.After opening, grease it lightly with anti seize grease.When closing, never tighten the covers before the threads are properly engaged.The covers should be turned counter-clockwise until the thread “clicks” in place,then turn clockwise until the covers are fully closed.Figure 4.2 Example of min max diagram4.2 The instrument coversThe SmartRadar LT enclosure is water proof IP67. For this purpose, the covers are fitted with O-rings.Check the O-rings before closing the instrument.4.3 Min max diagramOne of the features of the 973 SmartRadar LT is that the instrument keeps track of the measuredreflections. The minimum and maximum product reflection strength, measured at each Fourier interval, isstored.Whenever a larger reflection strength is measured at a specific Fourier interval, the previous value isoverwritten. The same is done for the minimum reflection strength value. In this way, a reflection history ispresent in the instrument.The minimum and maximum reflection strength values can be retrieved by the Ensite service tool producinga so-called “min max diagram”. Figure 4.2 gives an example of a min max diagram.In the example above, all measured product reflections are well above the product zone threshold.However, if some of the minimum reflections where found just above or at the product zone threshold, this isa signal that the product zone threshold should be lowered (or the gain, item 5O, should be increased).The memory of the min max diagram can be cleared with command CZ.](https://usermanual.wiki/Honeywell-Enraf/973SR/User-Guide-242572-Page-38.png)
![Service and troubleshootingInstruction manual 973 SmartRadar LT Page 43 WarningSwitch off supply before opening any of the covers.4.6 Updating softwareThe 973 SmartRadar LT is a multiple microprocessor gauge. If a new software version is installed, or anoption board is added, it may be necessary to replace one or more of the program memories (EPROM) onthe processor boards of the 973 SmartRadar LT.The actual version of the installed software can be checked with item SV. In case of a software update,check whether the contents of item SV correspond with the documentation accompanying the new software.Because of the strict relationship between the various processor boards, it may become necessary toreplace the memory of more than one processor board. Such a change may require an initialization of theNOVRAM, followed by re-programming the user parameters.The table below gives the software versions for the different processor boards which can operate together. Processor ICU board ICU board RFB-2 / DAB Optional board (XPU-2 part) (APU part) board Software XPU K1.0 APU B1.0 DAB B1.0 HPI A1.0 version HPO A1.0Note:Because software updates of different processor boards may be required in the future, this table may notbe up to date. For further information, contact Enraf or the local representative.If a new DAB / APU software version from a different row in the table above is placed in the SmartRadar LT,the Antenna parameters must also be updated. This can be done with a separate script file named:“873AUD03.ESF” of the Ensite service tool.Proceed as follows:1) Start up Ensite and make a log file of the gauge from which the software is going to be replaced.2) Run the script file 873AUD03.ESF. This file is (should be) placed in the ESF sub-directory of theEnsite program and then it can be selected by the name: “873 AU download”. This file stores data ofthe Antenna and RFB-2 calibration SEEPROM in a file called: “< TI >.AUD”, located in the Tanksubdirectory under: [drive]:\ENSITE\DAT\<sitename>.SIT\. (TI is the 6 character tank identifier name,<sitename> represents the given site name when the scanned site data was stored and [drive] is theC- or D- drive from which the Ensite service tool is running).3) Request to following data with the service tool Ensite:•Transmission address (item TA)•Tank identifier (item TI)•Transmission speed (item TS)•Gauge type (item GT)Note these values for later use.4) Switch off mains supply and open cover of electronic compartment.](https://usermanual.wiki/Honeywell-Enraf/973SR/User-Guide-242572-Page-43.png)
![Service and troubleshootingPage 46Put ICU board with mounting plate in place (mind the connector!) and secure it with the 4 Allen head screws.Insert all connectors which where disconnected.4.6.5 NOVRAM initClose covers and apply power.If NOVRAM needs to be formatted, proceed as follows:a) If Infra-Red connector is present:Issue the command IN on the PET three times in sequence. After the third time the NOVRAM will beformatted and the message: "NV-data initializing" appears.Note:Any other command in between the three IN commands, either from the PET or the Enraf fieldbus, will abort the init procedure. To avoid requests from the Enraf field bus, they can bedisconnected temporarily.When the NOVRAM formatting is ready, the message: "NV-data init completed" will be shown.Re-enter the items: TA (transmission address) TI (tank identifier) TS (transmission speed) GT (gauge type)Re-transmit the log file from Ensite service tool.Program all new settings which are required with the updated software.Set the SmartRadar LT to the correct level (check by means of a manual measurement) by using theRL, AR procedure (refer to chapter 3.4.3).Make a new log file and a reflection diagram with Ensite service tool for future reference.b) Without Infra-Red connector, hook-up Ensite service tool as described in section 3.3.Select on Ensite service tool the feature: ‘split screen’. Then the upper and lower display row aregiven in the top screen.Select transmission address 00, and give the command IN three times in sequence. When the NOVRAM formatting is ready, the message: "NV-data init completed" will be shown in topscreen. Re-transmit the log file from Ensite service tool.Program all new settings which are required with the updated software.Set the SmartRadar LT to the correct level (check by means of a manual measurement) by using theRL, AR procedure (refer to chapter 3.4.3).Make a new log file and a reflection diagram with Ensite service tool for future reference.4.6.6 Download Antenna and RFB-2 parameters (if required)The write protect strap on the RFB-2 / DAB board must be placed in position W (write enable). This strap islocated on the RFB-2 / DAB board. To reach the strap, follow the instructions as given for replacing the DABEPROM.The strap is located at the left from the Antenna SEEPROM (refer to Appendix C).After the strap is placed to position W, install all boards, connect all wires, close cover and apply power.Run from the service tool Ensite the script file <TI>.AUD, which was made before changing the EPROM’s(use: &RUN [drive]:ENSITE\DAT\<sitename>.SIT\<TI>\<TI>.AUD).Program all new settings which are required with the updated software.Switch off supply, open electronic compartment cover, remove ICU board and put strap J1 back to P(write protect). Install all boards, connect all wires, close cover and apply power.](https://usermanual.wiki/Honeywell-Enraf/973SR/User-Guide-242572-Page-46.png)
![AppendixInstruction manual 973 SmartRadar LT Page 49 Antenna type part numbers Antenna type Stem length [mm] Part number S06 0300 0873.913 6" stilling well 0500 0873.915 0050 0873.911 0800 0873.918 S08 0300 0873.923 8" stilling well 0500 0873.925 0050 0873.921 0800 0873.928 S10 0300 0873.933 10" stilling well 0500 0873.935 0050 0873.931 0800 0873.938 S12 0300 0873.943 12" stilling well 0500 0873.945 0050 0873.941 0800 0873.948 F08 0300 0873.973 8" free space 0500 0873.975 0050 0873.971 0800 0873.978 W06 0300 0873.963 WALP 6" x 12" 0500 0873.965 0050 ) 0873.9611 0800 0873.968 T06 0300 0873.953 Hinged WALP 0500 0873.955 6" x 12" 0800 0873.958 D02 1" RoD 0000 0873.902 H02 High pressure H02 Antenna with integrated 0873.990 tank separator H04 360 mm horn length ) 0186.371 High pressure 410 mm horn length ) 0186.27323) For demo purposes only1) For 4" Sch 40 pipe2) For 4" Sch 10 pipe3](https://usermanual.wiki/Honeywell-Enraf/973SR/User-Guide-242572-Page-49.png)
