Varec 7532 Technical information
Contents
1. i e from edges and weld seams are not interpreted as level echo Avoid any installations 1 like limit switches temperature sensors etc inside the signal beam It is essential that HiHi alarm is below the blocking distance BD and the safety distance SD Symmetrical installations 2 e g vacuum rings heating coils baffles etc can also interfere with the measurement Gauge orientation Recommended distance 1 wall outer edge of nozzle 1 6 of tank diameter Not in the centre 3 interference can cause signal loss Not above the fill stream 4 Itis recommended to use a weather protection cover 2 in order to protect the transmitter from direct sun or rain Assembly and disassembly is simply done by means of a tension clamp Optimisation options Antenna size the bigger the antenna the smaller the beam angle the less interference echoes Mapping the measurement can be optimized by means of electronic suppression of interference echoes Technical Information Radar Tank Gauge Antenna alignment Stilling well a stilling well can always be used to avoid interference The 7532 RTG with planar antenna is recommended for stilling wells with a diameter DN150 6 and larger Metallic screens 3 mounted at a slope spread the radar signals and can therefore reduce interference echoes Please contact Varec for further information Note The 7500 Series Radar Tank Gauge 7532 RTG is de2. GA 30092 Tel 1 770 447 9202 Toll Free 1 866 698 2732 Fax 1 770 662 8939 If no offical representative is listed here please visit www varec com to find your local representative 2006 Varec Inc An SAIC Company All Rights Reserved This document is for information purposes only Varec Inc makes no warranties express or implied in this summary The names of actual companies and products mentioned herein may be the trademarks of their respective owners Document Code TECO28GVAE0807
3. Gauge 4 F 392 F media 7532 RTG stilling well radar gauges typically provide accuracy of Standard EPDM 0 8 mm 2 sigma value 40 150 C Depending on the respecitve national 40 F 302 F gauging regulations the admissible errors AFTER installation of the Standard Kalrez instrument on the tank are 3 mm 0 200 C OIML 4 mm API 32 F 392 F Non repeatability 0 3 mm 1 64 Standard for PTFE PTFE and 20 200 C conductive 1 4571 Long term drift The long term drift is within the 4 F 392 F media specified accuracy PTFE seal non wetted Viton Influence of Within thel specified accuracy O Ring ambient ACCO OIM Res Note All process connections are gas tight The horn ver EPEAT sion for conductive media is resistant to hot vapour Maximum fill speed By the first pass trough of measuring range 100 mm min thereafter unlimited 7531 RTG Reaction time The reaction time depends on the Rod gas tight 1 4435 SS 316 L PTFE parameter settings min 1 s In case of fast level changes the instrument needs the reaction time to indicate Stab gas tight 1 4435 SS 316 L PTFE TFM 1600 the new value antistatic a Rod antenna with FDA listed materials white PTFE TFM 1600 3A Resolution digital 0 1 mm approved in combination with 2 and 3 analog 0 03 of measuring range Tri clamp process connection Settling time T
4. certain conditions Distance B defined the smallest recommended measurement range Tank diameter and height should be at least dimensioned such that a reflection of the radar signal on both sides of the tank can be ruled out 7530 RTG 7531 RTG 7533 RTG In case of media with a low dielectric constant groups A and B the tank bottom can be visible through the medium at low levels low height C Reduced accuracy has to be expected in this range If this is not acceptable we recommend positioning the zero point at a distance C above the tank bottom in these applications 7532 RTG The zero should be positioned at the end of the tube as the electromagnetic waves do not FMR530 531 533 2 max level Measuring Conditions amp Gauge Orientation propagate completely outside the tube It must be taken into account that the accuracy may be reduced in the area C In order to guarantee the required accuracy in these cases it is recommended to position the zero point at a distance C above the tank bottom In principle it is possible to measure up to the tip of the rod and horn antenna However due to considerations regarding accuracy corrosion and build up the end of the measuring range should not be chosen any closer than 50 mm 2 to the tip of the rod and horn antenna In applications with planar or parabolic antennas especially for media with low dielectric constants the end of the measuring ran
5. equipped with an internal overvoltage protector 600 Vrms surge arrester according to DIN EN 60079 14 or IEC 60060 1 impulse current test 8 20 us 10 kA 10 pulses Additionally the instrument is protected by a galvanic insulation of 500 Vrms between the power supply and the HART current ouput Connect the metallic housing of the 7500 Series Radar Tank Gauge to the tank wall or screen directly with an electrically conductive lead to ensure reliable potential matching Installation with additional overvoltage protector HAW262Z HAW56xZ see XA081F A Safety instructions for electrical apparatus certified for use in explosion hazardous areas Connect the external overvoltage protector and the 7500 Series Radar Tank Gauge to the local potential matching system Potentials shall be equalised both inside and outside the explosion hazardous area The cable connecting the overvoltage protector and the 7500 Series Radar Tank Gauge shall not exceed 1 m in length The cable shall be protected e g routed in an armoured hose Output Signal 4 20 mA with HART protocol e g for multidrop connection to the 4590 Tank Side Monitor this version can be operated via the PC operating software ToF Tool The instrument supports both point to point and multidrop operation Note For measurements with mm accuracy the measured variable must be transmitted using HART protocol to ensure the necessary resolution Galvanic Isolation 500 V
6. l l T12 housing ANSI 2 ANSI 3 6 a Sa SE Sy ER EET f m AER d zm qued ODE Allen key 4 mm tighten strongly by hand Installation in stilling well Mark on process connector of 7530 pointed towards the slots or vent holes mark at instrument flange DN80 150 ANSI 3 6 Example Installations 8 Varec Inc Inputs and Outputs Terminal Assignment The 4 wire cable is connected to the screw terminals wire diameter 0 5 2 5 mm in the terminal compartment Use 4 wire twisted pair cable with screen for the connection Protective circuitry against reverse polarity RFl and over voltage peaks is built into the device Accessing the terminal compartment power 24 VDC signal 16 30 V 24 VbC e g from e g from NRF590 NRFS90 HART alternatively Commubox FXA195 DXR375 communication resistor gt 250 test sockets output current Terminal Connections Note Minimum load for HART communication 250 Q Note Refer to the 4590 TSM technical information for con nection to the 4590 TSM Input Power The 7500 Series Radar Tank Gauges operate on a DC voltage 16 36 VDC power source meme n voltage Power supply Standard U 20 mA Power supply Ex U 20 mA Signal Ex U 20 mA Technical Information Radar Tank Gauge Overvoltage Protector The 7500 Series Radar Tank Gauge is
7. of breather valves can be tolerated The number of bolts has sometimes been reduced The bolt holes have been enlarged for adaption of dimensions therefore the flange needs to be properly aligned to the counterflange before the bolts are tightened rt or little bolts Radar Tank Gauge 101 sealing surface Variant 2000 Loy material 1 4301 Uni Flange Version Compatible D K mm Type plate with mm no 1000 DN150 PNI6 280 240 942455 ANSI 6 3001 150lbs JIS 10K 150 2000 DN200 PNI6 340 294 5 942455 ANSI 8 3002 150lbs JIS 10K 200 3000 DN250 PNI6 405 358 942455 ANSI 10 3003 150lbs JIS 10K 250 4000 DN300 PNI6 482 410 for DIN 942455 ANSI 12 431 8 for ANSI 3004 150lbs 400 for JIS JIS 10K 300 404 5 for DIN JIS 13 7500 RTG Sample Hatch for 7532 RTG For control and cleaning purposes for sample taking as well as for hand dipping tape a sample hatch is recommended The sensor head of 7532 RTG planar antenna can be easily checked in the area of the opening Manual gauging with gauge rod or tape is possible without removal of the transmitter The lower edge of the opening is the reference for the gauging The construction is only suitable for non pressurized operation and should be used for the planar antenna version 7532 RTG only Note The sample hatch is not part of the standard
8. the instrument is exposed to direct sunlight Ambient temperature 7530 RTG 0 40 bar 14 5 580 psi option 64 bar 928 psi 753 RTG 0 40 bar 14 5 580 psi 7532 RTG 0 25 bar 14 5 362 psi 7533 RTG 0 16 bar 14 5 232 psi Process pressure limits 100 120 Storage 40 F and 176 F Temperature 40 C and 88 C DIN EN 60068 2 38 test Z AD Electromagnetic Interference Emission to EN 61326 compatibility EMC Electrical Equipment Class B Interference Immunity to EN 61326 Annex A Industrial and NAMUR Recommendation NE 21 EMC Use a screened cable for the connection to the sensor Vibration Shock DIN EN 60068 2 64 IEC 68 2 64 20 2000 Hz 1 m s Hz Process Temperature Tange Horn antenna 40 C 200 C 40 F 4 392 F Rod antenna 40 C 150 C 40 F 302 F Planar 40 C 150 C antenna 40 F 302 F 4 F 302 F for FKM seal 40 C 200 C 40 F 392 F 150 T C Parabolic antenna Varec Inc Radar Tank Gauge Performance Wetted Parts i 7 RT Hysteresis 0 3 mm 1 64 530 G Type of antenna Seal Media Antenna Wetted Absolute accuracy better than 1 mmFree space 7500 CORE parts Series Radar Tank Gauge radar gauges typically provide accuracy of Standard Viton for non PTFE PTFE and 0 5 mm 2 sigma value 20 200 C conductive 1 4571 The 7500 Series Radar Tank
9. towards ground 500 V between power supply and signal 7500 RTG 10 Operation Operation Concept The display of the process value and the configuration of the Radar Tank Gauge occur locally by means of a large 4 line alphanumeric display with plain text information The guided menu system with integrated help texts ensures a quick and safe commissioning Display and operation can occur in one out of six languages English German French Italian Dutch and Spanish During the first start up the instrument explicitly asks for the desired unit language Remote commissioning including documentation of the measuring point and in depth analysis functions is supported via the ToF Tool the graphical operating software for Varec instruments Access to the electronics can be prevented by means of a custody locking switch that locks the device settings The custody locking switch can be sealed for custody transfer applications On site Operation The LC Display VU331 Four lines with 20 characters each allows configuration via 3 keys directly at the instrument It can be removed to ease operation by simply pressing the snap fit It is connected to the device by means of a 500 mm cable All device functions can be set through a menu system The menu consists of function groups and functions Within a function application parameters can be read or adjusted The user is guided through a complete configuration procedure L
10. 00 RTG Product Dimmensions T12 Housing T12 housing 65 2 56 antenna extension 85 3 35 t _i a 1 I antenna extension L1 100 mm 3 98 200 mm 7 87 300 mm 11 81 400 mm 15 75 7531 RTG rod antenna Flange DN 50 150 or equivalent 394 544 100 250 3 94 7 87 2 3 Tri clamp ISO 2852 390 540 15 35 21 26 PTFE antistatic 100 250 3 94 7 87 PTFE TFM 1600 Flange to EN 1092 1 for PN 16 f r PN 40 Flange DN50 DN80 DN100 DN150 B 18 20 20 22 mm inch 0 71 0 79 0 79 0 87 24 0 94 D 165 200 220 285 mm inch 6 5 7 87 8 66 11 22 compatible with DIN 2527 Flange to ANSI B16 5 for 150 Ibs for 300 Ibs Flange ANSI 2 ANSI 3 ANSI 4 ANSI 6 B 19 1 23 9 23 9 25 4 mm inch 0 75 0 94 0 94 1 28 4 1 12 D 152 4 190 5 228 6 279 4 mm inch 6 7 5 9 117 209 5 8 25 Flange to JIS B2210 for 10K Flange DN50 DN80 DN100 DN150 B 16 18 18 22 mm inch 0 63 0 71 0 71 0 87 D 155 185 210 280 mm inch 6 1 7 28 8 27 11 02 Antenna type OD DN80 3 DN100 4 D mm inch 76 3 96 3 78 L mm inch 68 2 68 105 4 13 Antenna type DN150 6 DN200
11. 7500 Series Radar Tank Gauges Continuous and non contact precision level measurement for custody transfer and inventory control applications with NMi and PTB approvals APPROVED o o FuelsManager Compatibility 2 Benefits 0 5 mm accuracy 2c value National approvals NMi PTB for custody transfer Applicable as stand alone system or tied into tank gauging systems via the 4590 Tank Side Monitor Easy on site operation via menu driven alphanumeric display Easy commissioning documentation and diagnostics via operating software ToF Tool Application specific antenna selection Planar antenna versions allow direct installation on tapered stilling wells Cost effective and simple installation via 4 wire cable with HART and 24 V DC intrinsically safe power supply Gas tight process connection second line of defense standard for any antenna version Inventory control version with reduced accuracy 3 mm available for all instrument types For more information email sales varec Application The 7500 Series Radar Tank Gauges are used for highly accurate level measurement in storage tanks and can be applied in custody transfer applications It meets the relevant requirements according to OIML R85 and API 3 1B 2 wire i s HART System Communications AC Power Monitor com or visit www tankgauging com 7500 RTG Function and System Design Measuring Principle Th
12. 8 DN250 10 OD D mm inch 146 5 75 191 7 52 241 9 49 L mm inch 185 7 28 267 10 51 359 14 13 compatible withDIN 2527 18 Varec Inc 7532 RTG planar antenna DIN ANSI JIS max 1 bar E H UNI flange Radar Tank Gauge detail A flange adapter see under DN200 300 8 12 ver sion with antenna widening inactive length 150 5 91 DN150 6 ver sion without widening detail A flange hub for the connection to flanges provided by the customer mounting 4 bolts M6 90 78 3 07 e g DIN 912 62 5 2 46 O Ring 85 3 x 3 53 included same material as sensor seal flange hub 99 5 3 92 Order Codes Please consult your local sales representative for product options Antenna version DN150 DN200 DN250 DN300 D 6 8 1 0 1 2 L mm inch 93 337 490 517 3 66 13 27 1 19 29 20 35 D mm inch no horn 192 242 292 7 56 9 53 11 5 Note The inactive length of 60 mm prevents condensation effects to the antenna performance 7533 RTG parabolic antenna UNI flange max 1 bar flange hub 99 5 3 92 OQ 118 4 65 deflector 19 Technical Information 7500 Radar Tank Gauge www varec com Your Official Representative Corporate Headquarters 5834 Peachtree Corners East Norcross
13. CD liquid crystal display custody locking switch LC Display VU331 To access the display it is possible to open the cover of the electronics compartment even in an explosion hazardous area Remote Operation The ToF Tool is a graphical operation software for instruments from Varec that operate based on the time of flight principle It is used to support commissioning securing of data signal analysis and documentation of the instruments It is compatible with the following operating systems Win95 Win98 WinNT4 0 Win2000 and Windows XP The ToF Tool supports the following functions Online configuration of transmitters Signal analysis via envelope curve Loading and saving of instrument data Upload Download Documentation of measuring point Note More information on the ToF Tool can be found on the CD ROM which is supplied with the instrument Menu guided commissioning Signal analysis via envelope curve Connection options HART with Commubox FXA191 195 Service interface with adapter FXA193 RS232C or FXA291 and ToF Adapter FXA291 USB Envelope Window Hel ToF ToF Tool Micropilot S FMR 533 File Edit View Device Options mE amp tz rm mi we e s 3c O S i d Ha 444 wh DP ie 3 Device Data Device Name Micropilot S FMR 533 ToF Tool Operating screen shots Software Reliability The software used in the ra
14. al Additional initial factory verifications for custody applications are available on demand for radar instrument 7500 Series Radar Tank Gauge Inventory Control Versions All device types can be delivered as Inventory Conctrol Versions with a reduced accuracy of 3 mm under reference conditions To these versions the calibration certificate or custody transfer type approval is NOT attached The Inventory Control Versions can be selected by choosing the option R in the order code section Custody transfer approvals Temperature 7500 RTG Installation Guidelines Configuration The Radar Tank Gauge is commissioned by entering an empty distance E zero and a full distance F span that correspond with 4mA and 20mA current output A linearization table max 32 points which can be configured locally or remotely provides engineering units and a linear output signal for spheres horizontal cylindrical tanks and vessels with conical outlet On site operation and configuration is performed using The built in display and operating module VU331 A Personal Computer service adaptor FXA1 93 and ToF Tool FieldTool Package operating software Remote operation and configuration can be performed using A Personal Computer service adaptor FXA195 and ToF Tool FieldTool Package operating software A Personal Computer TSM Tank Side Monitor and the operating s
15. ax 1 10 of pipe diameter de burred Length and number do not have any influence on the measurement Maximum gap allowed between the antenna horn and the inside of the stilling well is 5 mm 3 167 At any transition e g when using a ball valve or mending pipe segments no gap may be created exceeding 1 mm 0 04 The stilling well must be smooth on the inside average roughness Rz x 6 3 um Use extruded or parallel welded stainless steel pipe An extension of the pipe is possible with welded flanges or pipe sleeves Flange and pipe have to be properly aligned at the inside 7500 RTG Do not weld through the pipe wall The inside of the Note Please refer to the sepcific instruments Installation amp stilling well must remain smooth In case of Operation Manual for complete installation instructions unintentional welding through the pipe the weld seam and any unevenness on the inside need to be carefully removed and smoothed Otherwise strong interference echoes will be generated and material build up will be promoted Installation in tank free space Mark on process connector facing the nearest tank wall DN200 250 ANSI 8 10 Turn housing The housing can be turned 350 in order to simplify access to the display and the terminal compartment marker at instrument flange O O l l l l l O O l EN O O aO DN80 150 l l l l l l l l
16. dar instrument 7500 Series Radar Tank Gauge fulfills the requirements of OIML R85 This particularly includes cyclical test of data consistency non volatile memory segmented data storage The radar instrument 7500 Series Radar Tank Gauge continuously monitor the compliance with accuracy requirements for custody transfer measurements according to OIML R85 If the accuracy cannot be maintained a specific alarm is generated on the local display and via the digital communication Varec Inc Signal on Alarm Error information can be accessed via the following interfaces Local display Error symbol Plain text display LED s red LED continuously on alarm red LED flashes warning Current output Digital interface Linearization The linearization function of the 7500 Series Radar Tank Gauge allows the conversion of the measured value into any unit of length or volume Linearization tables for calculating the volume in cylindrical tanks are pre programmed Other tables of up to 32 value pairs can be entered manually or semi automatically Technical Information Radar Tank Gauge 11 7500 RTG 12 Maintenance Spare Parts and Maintenance Kits The 7500 series RTG is designed and manufactured to provide accurate and reliable operation without an intensive maintenance schedule Varec can provide spare parts preventive maintenance advice training and warranties Please consult your Installation and maintena
17. e Radar Tank Gauge is a downward looking measuring system operating based on the time of flight method It measures the distance from the reference point process connection to the product surface Radar impulses are emitted by an antenna reflected off the product surface and received again by the radar system Antenna Selection It is essential for each and every application and installation to evaluate the right antenna type The antenna selection depends on the following criteria Type of application i e free space vs stilling well Installation possibilities size location and height of nozzle Properties of the product stored in the tank radar reflectivity vapor pressure temperature etc Accuracy requirements The 7500 Series Radar Tank Gauge series radar comes with 4 basic radar antenna forms Horn antenna The 7530 RTG with horn antenna is suitable for free space applications that disallow the use of a parabolic antenna due to tank nozzle geometry It is essential that the horn extends below the nozzle The general rule for diameter selection is the larger the better as a larger aperture of the antenna generates a narrower beam and has a better gain signal to noise S N ratio Rod antenna The 7531 RTG with rod antenna is used for highly accurate measurements where only small diameter nozzles are available and tanks containing condensing products or heavy water condensation or corrosive pr
18. fs not for 7532 RTG with planar antenna Optimum mounting position Positioning of the reflector on a floating roof The upper edges of the reflector have to be aligned horizontally For slanted locations e g dome shaped floating roof the feet must be extended accordingly Construction hints The construction serves as retroreflector such that a tank roof incline does not influence the measured value The cross sectional area shouldn t be smaller than specified in the figure above to receive and transmit roof reflector enough energy horizontal top edge The construction should be open in the bottom part to allow rainwater to drop out Thin stainless steel sheets should be used to prevent the construction from becoming too heavy Note The roof reflector is not part of the standard offering from Varec Please contact Varec for further information NA e g floating Top View Of Reflector Roof Reflector Technical Information 15 7500 RTG 16 Technical Specifications The following specifications apply to the 7500 Series Radar Tank Gauge 7530 753 7532 and 7533 RTG over the normal ambient operating temperature rangethat can be calibrated for inventory control and custody transfer applications according to regulatory standards in compliance with OIML R85 General Designation 7500 Series Radar Tank Gauge 7530 7531 7532 7533 RTG Function Level Radar Smart Transmitter for continuous and non contac
19. ge should not be closer than 1 m 40 to the flange This safety distance SD is set to 0 1 m 4 by default for 7530 RTG horna antenna and 7531 RTG rod antenna and generating an alarm in case the product level rises inside the safety distance For 7533 RTG parabolic antenna and 7532 RTG planar antenna the safety distance SD is set to 0 5 m 20 by default generating an alarm in case the product level rises inside the safety distance FMR532 a Q SD max level reference flange BD cf picture reference antenna tip cf picture Blocking distance Safety distance recommended additional settings BD m ft SD m ft A mm inch B m ft C mm inch 7530 RTG horn horn length O17 03 50 2 0 5 1 6 150 300 6 12 7531 RTG rod 0 39 1 3 or 0 54 1 8 0 1 0 3 50 2 0 5 1 6 150 300 6 12 7532 RTG planar 1 3 28 0 5 1 6 1000 40 0 5 1 6 150 300 6 12 7533 RTG parabolic 1 3 28 0 5 1 6 1000 40 0 5 1 6 150 300 6 12 Varec Inc Note The behaviour in case of the measuring range being exceeded can be freely set the default setting is a current of 22 mA and the generation of a digital warning E681 Tank Installation Tank Installations The Radar Tank Gaugeis equipped with functions to suppress interference echoes The user can activate these functions They ensure that interference echoes
20. int due to the hydrostatic tank deformation can be compensated in the Tank Side Monitor A Tank Side Monitor can provide 24 VDC for a 7500 Series Radar Tank Gauge The Tank Side Monitor can communicate with up to 6 devices via HART Multidrop Reference Operating Conditions According to OIML R85 Temperature 25 C 55 C 13 131 F Atmospheric pressure Relative humidity air 65 96 15 Medium properties e g medium with good reflectivity and calm surface Tank diameter signal beam hits the tank wall only at one side No major interference reflections inside the signal beam Supply voltage 16 253 VAC 8130 RTU or 8300 TGI FuelsManager Software Pressure ss tHe yow _ Example System Diagram Technical Information Radar Tank Gauge Proof of Accuracy of Custody Transfer Versions The accuracy of each 7500 Series Radar Tank Gauge is established through a calibration certificate that records the absolute and relative error at 10 equidistant points during the final test A Laser Interferometer Jenaer Messtechnik ZLM 500 with an absolute accuracy of 0 1 mm is used asa reference for the free space measurements with 7530 RTG 7531 RTG and 7533 RTG For stilling well measurements with 7532 RTG a NMI PTB calibrated tape with an absolute accuracy of 0 25 mm is used Each 7500 Series Radar Tank Gauge is delivered with the PTB and NMi type approv
21. m 124 ft 40 m 131 ft DN150 15 m 49 ft 15 m 49 ft DN200 250 20 m 65 ft D DC Er gt 10 38 m 124 ft 40 m 131 ft DN150 20 m 65 ft 20 m 65 ft DN200 250 25 m 82 ft max measuring range NMi 20 m 65 ft NMi 25 m 82 ft NMi and PTB NMi and PTB 10 with custody transfer PTB 30 m 98 ft PTB 30 m 98 ft DN150 20 m 82 ft m 33 ft approvals DN200 250 25 m 82 ft Blocking distance The blocking distance BD is the minimum distance Blocking Stilling well Free space Storage tank distance BD Bypass form the reference reference point of 7532 RTG 7533 7530 7531 point of the measurement RTG RTG RTG measurement from flange 1 m 40 1 m 40 Length 390 of horn mm 15 see Page 540 28 mm 21 mounting flange to the medium surface at maximum level Note If an antenna extension is used its length has to be added Note Inside the blocking distance of 7532 RTG 7533 RTG a reliable measurement can not be guaranteed Technical Information 5 7500 RTG Measuring Conditions The measuring range begins where the beam hits the tank bottom Particularly with dish bottoms or conical outlets the level cannot be detected below this point For overspill protection it is possible to define a safety distance SD additionally to the blocking distance BD Depending on its consistence foam can either absorb microwaves or reflect them off the foam surface Measurement is possible under
22. nce manual or a representative for more details Cleaning the Antenna The antenna can get contaminated depending on the application The emission and reception of microwaves can thus eventually be hindered The degree of contamination leading to an error depends on the medium and the reflectivity mainly determined by the dielectric constant r If the medium tends to cause contamination and deposits cleaning on a regular basis is recommended Care has to be taken not to damage the antenna in the process of a mechanical or hose down cleaning The material compatibility has to be considered if cleaning agents are used The maximum permitted temperature at the flange should not be exceeded Varec Inc Accessories Antenna Extension for 7530 RTG The antenna extension has to be selected such that the horn extends below the nozzle If the horn diameter is greater than the nominal width of the nozzle the antenna including the extension is mounted from inside the vessel The bolts are tightened from outside with the instrument lifted up The extension has to be selected such that the instrument can be lifted by at least 100 mm 4 100 mm 4 Antenna extension STN JTRS 40 mm 1 57 Q 62 mm 2 44 78 mm 3 07 t device Antenna extension dimensions Technical Information UNI Flange Varec UNI flanges are designed for non pressurized operation Typical pressure fluctuations
23. oducts such as sulphur as the rod is easy to clean and has good drip off properties The inactive length of the antenna should extend below the nozzle Planar antenna for stilling well The 7532 RTG with planar antenna is specifically suited for stilling well applications with ranges up to 38 m 124 ft The emitted circular mode radar pattern is a must for high accuracy applications on stilling wells This special mode allows the software to compensate for variations of the inside diameter of the stilling well and layering of adhering product The diameter of the antenna itself fits in 6 DN150 stilling wells directly Cone adapters allow installation on larger diameter stilling wells A good match between well and adapter is essential The Varec planar antenna with pulsed radar technology allows direct installation even on tapered stilling wells a unique feature Parabolic antenna The 7533 RTG with parabolic antenna is excellently suited for free space applications up to 40 m 131 ft The parabolic antenna is the largest free space antenna with the smallest beam angle It is ideal for applications close to tank walls where a manway cover is available The parabolic antenna is also an excellent choice on products with a low reflectivity such as asphalts and bitumens Tank Gauging System The Varec 4590 Tank Side Monitor provides integrated communications for sites with multiple tanks each with one o
24. offering from Varec Please contact Varec for further information quick opening device opening door with flange size according to tank tank nozzle stilling well Sample Hatch Flange DN150 DN200 DN250 300 PN bar 16 16 16 A mm 110 140 170 L mmj 300 450 Flange ANSI 6 ANSI 8 ANSI 10 PN lbs 150 150 150 A mm 110 140 170 L mm 300 450 Weather Protection Cover A weather protective cover made of stainless steel is available for outdoor mounting order code 543199 0001 The shipment includes the protective cover and tension clamp T12 housing Weather Protection Cover Pivoting Element for 7500 Series Radar Tank Gauge 7532 RTG The pivoting element is intended for the 7500 Series Radar Tank Gauge with planar antenna It serves to swivel the 7500 Series Radar Tank Gauge from the measuring position e g to clean the antenna or dip the tank The pivoting element is not part of the standard offering from Varec For more information please contact your Varec representative Note When mounting avoid any gaps within the path of the beam Varec Inc Radar Tank Gauge Roof Reflector Measurements on floating roofs are not recommended for highly accurate measurements due to the unsteady movements of the floating roofs A special reflector can be used for applications on floating roo
25. oftware FuelsManager Measuring Range The usable measuring range depends on the size of the antenna the reflectivity of the medium the mounting location and eventual interference reflections The following tables describe the groups of media as well as the achievable measuring range as a function of application and media group If the dielectric constant of a medium is unknown it is recommended to assume media group B to ensure a reliable measurement Media DC Examples group r A 1 4 non conducting liquids e g liquefied gas 1 9 LPG For more information please contact your Varec representative B 1 9 non conducting liquids e g benzene oil toluene white products black products crudes bitumen asphalts C 4 10 e g concentrated acids organic solvents esters aniline alcohol acetone D gt 10 conducting liquids e g aqueous solutions dilute acids and alkalis 4 Varec Inc Radar Tank Gauge Measuring range depending on vessel type conditions and product for Micropilot S Media group Stilling well Bypass Free space Storage tank Measuring range Measuring range 7532 RTG gt DN150 7533 RTG 7530 RTG 753 RTG DN150 200 250 A IDC r 1 4 1 9 38 m 124 ft B DC Er 1 9 4 38 m 124 ft 40 m 131 ft DN150 10 m 33 ft 10 m 33 ft DN200 250 15 49 ft m C DC Er 4 10 38
26. r more sensors on the tank such as radar spot or average temperature capacitive probe for water detection and or pressure sensors Multiple protocols out of the Tank Side Monitor guarantee connectivity to nearly any of the existing industry standard tank gauging protocols Optional connectivity of analog 4 20 mA sensors digital I O and analog output simplify full tank sensor integration Use of the proven concept of the intrinsically safe HART bus HART multidrop for all on tank sensors yields extremely low wiring costs while at the same time providing maximum safety reliability and data availability High Accuracy The mm accuracy of the 7500 Series Radar Tank Gauge is achieved using the patented algorithms of the Microprocessor s PhaseMaster software Custody Transfer Applications The 7500 Series Radar Tank Gauge is suitable for custody transfer and inventory control applications The on site testing has to be done in compliance with the applicable regulatory standards The 7500 Series Radar Tank Gauge can be sealed after successful on site calibration to be protected against any access to the electronics compartment and any changes of software settings If the 7500 Series Radar Tank Gauge is used for custody transfer or inventory control any temperature influence on the tank shell hight can be compensated for using the Tank Side Monitor TSM In addition the vertical movement of the gauge reference Varec Inc po
27. signed for level measurement in stilling wells only Caution Make sure that only one tank wall not two tank walls is directly hit by the radar beam Mounting in manway The parabolic antenna can be mounted on a manway cover The manway cover must have an opening with a diameter D1 or D2 for mounting of the antenna It has to be possible to remove the cover in order to mount the antenna Please consider the maximum height of the nozzle H max 200 mm 8 for the diameter of the basis Mounting in a stilling well The stilling well should be constructed from metal no enamel coating plastic on request with a constant diameter When using a 7532 RTG an increase of the pipe diameter from DN150 to DN200 DN200 to DN250 DN250 to DN300 is acceptable A larger step width for the increase of the pipe diameter e g DN150 to DN300 is possible if the upper part of the pipe has a suitable length The length of the stilling well enlargement must be kept In this case the upper end of the pipe must have a minimum length of 0 5 m 20 before the diameter increases If the length is less than L please contact Varec in order to determine a suitable antenna adapter separable antenna horn Ideally a sample hatch is used Any rectangular increase of the pipe diameter has to be avoided Welding seam as smooth as possible and on the same axis as the slots Slots offset 180 not 90 Slot width respectively diameter of holes m
28. t precision level measurement For custody transfer and inventory control applications with NMi and PTB approvals Physical 7530 RTG 7 1 kg weight of flange 7531 RTG 5 kg weight of flange 7532 RTG 6 5 kg weight of flange 7533 RTG 13 kg weight of flange See Ordering information All process connections dispose of a gas tight glass feed through to prevent any gas leakage to the inside of the housing Enclosure IP 65 NEMA 4X open housing and removed liquid crystal display IP20 NEMA 1 Housing T12 separate terminal compartment for increased safety respectively explosion proof Material aluminium seawater repellent chromate powder coated Sight window glass Conduit entries M20x1 5 Pg 13 5 gland included 34 NPT G 34 internal thread Process connection Power Power consumption Max 330 mW at 16 V max 500 mW at 24 V max 600 mW at 30 V Current Max 21 mA 50 mA inrush current consumption Supply voltage DC voltage 16 36 VDC HART Field Communications Wem mm Cable Four 4 wire twisted pairs wire diameter 0 5 2 5 mm Ripple HART 47 125 Hz Uss 200 mV at 500 W Environmental x 40 F and 185 F 40 C and 85 C For calibration to regulatory standards 25 C 55 C 30 F 140 F With T lt 20 C and T gt 60 C the operability of the LC display is reduced A weather protection cover should be used for outdoor operation if
29. ypical 15 sec 7532 RTG ification Approval Comagleations amp AP Rap als Planar gas tight 1 4435 HNBR Hydrated Nitrit Butadien Rubber CE approval The measuring system meets the legal resistent to NH or FKM PTFE glas fibre requirements of the EC guidelines Varec confirms the laminat instrument passing the required tests by attaching the CE Horn adapter for 1 4435 mark increase of Ex approval See Ordering information diameter External standards and guidelines Note The planar antenna is not resistant to hot vapour and To conception and development for Micropilot S have been NH3 followed the external standards and guidelines EN 60529 Protection class of housing IP code EN 61010 Safety regulations for electrical devices for measurement control regulation and laboratory use 7533 RTG EN 61 326 Emissions equipment class B compatibility Parabolic gas 1 4435 SS 316 L PTFE appendix A industrial area tight NAMUR Standards committee for measurement and control in the chemical industry API American Petroleum Institute Particularly Manual of Petroleum Measurement Stadards OIML R85 Organisation Internationale de M trologie L gale Overspill protection WHG see ZE243F 00 de Custody type approval All aspects of OIML R85 are fulfilled RF approvals R amp TTE 1999 5 EG FCC CRF 47 part 15 Marine certificate GL Germanischer Lloyd Technical Information 17 75
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