IOM027FVAE0804 7532 Radar Tank Gauge Smart transmitter for continuous and non-contact precision level measurement. For custody transfer and inventory-control applications with NMI and PTB approval. Installation and Operations Manual www.varec.com Varec, Inc.
Radar Tank Gauge Brief operating instructions 000 measured value - + Contrast: or + 009 history reset E Group selection - 003 medium property 004 process cond. 01 safety settings - flat ceiling - stilling well … - unknown - <1.9 - 1.9 … 4 - 4 … 10 - >10 input E input F - standard only for (see sketch) (see sketch) bypass + - calm surface stilling well - add. agitator … basic setup 04 linearisation 030 tank gauging 033 dip table mode 0C system parameters 006 full calibr.
Radar Tank Gauge Table of Contents Table of Contents 1 Safety Instructions ....................................4 6 Commissioning .........................................45 1.1 1.2 1.3 1.4 1.5 Designated use . . . . . . . . . . . . . . . . . . . . . . . . Installation, commissioning and operation . . . . Operational safety . . . . . . . . . . . . . . . . . . . . . . Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Notes on safety conventions and symbols . . . .
Safety Instructions Radar Tank Gauge 1 1.1 Safety Instructions Designated use The Varec Model 7532 Radar Tank Gauge (RTG) is a compact radar level transmitter for the continuous, contactless measurement of liquids, pastes and sludge in stilling wells. The device can also be freely mounted outside closed metal vessels because of its operating frequency of about 6 GHz and a maximum radiated pulsed energy of 1mW (average power output 1 µW). Operation is completely harmless to humans and animals. 1.
7532 Safety Instructions 1.4 Return The following procedures must be carried out before a transmitter is sent to Varec for repair: • Always enclose a duly completed “Declaration of contamination” form. Only then can Varec transport, examine and repair a returned device. • Enclose special handling instructions if necessary, for example a safety data sheet as per EN 91/155/EEC. • Remove all residue which may be present. Pay special attention to the gasket grooves and crevices where fluid may be present.
Safety Instructions Radar Tank Gauge 1.5 Notes on safety conventions and symbols In order to highlight safety-relevant or alternative operating procedures in the manual, the following conventions have been used, each indicated by a corresponding symbol in the margin.
532 Identification 2 Identification 2.1 Device designation 2.1.1 Nameplate and Certification Plates 7500RTG_nameplate_label.eps The following technical data are given on the instrument nameplate: Information on the nameplate of the 7500 RTG (example) Figure 2: Information on the NMi type plate for custody transfer applications of the 7500 RTG (example) Figure 3: Information on the PTB type plate for custody transfer applications of the 7500 RTG (example) 7500RTG_ATEX-PTB_label.
Identification Radar Tank Gauge 2.1.
7532 Identification 40 50 60 70 80 7532- Output and operation A 4…20 mA HART with VU 331, 4-line alphanumeric display Y Special version Housing C Aluminium T12-housing with separate connection compartment, coated, IP65 Y Special version Gland / Entry 2 M20x1.
Identification Radar Tank Gauge 2.2 Scope of delivery Caution! It is essential to follow the instructions concerning the unpacking, transport and storage of measuring instruments given in the section “Incoming acceptance, transport, storage” on page 12.
7532 Mounting 3 3.1 Mounting Quick installation guide Installation only in stilling well: Turn housing The housing can be turned in order to simplify access to the display and the terminal compartment T12 housing 90 ˚ 2 3 1 The performance of the 7532 RTG planar antenna is not dependent on the alignment or geometry of standard stilling wells. No special alignment is required. However, make sure that the planar antenna is installed vertically relative to the stilling well axis. .
Mounting Radar Tank Gauge 3.2 Incoming acceptance, transport, storage 3.2.1 Incoming acceptance Check the packing and contents for any signs of damage. Check the shipment, make sure nothing is missing and that the scope of supply matches your order. 3.2.2 Transport Caution! Follow the safety instructions and transport conditions for instruments of more than 18 kg. Do not lift the measuring instrument by its housing in order to transport it. 3.2.
7532 Mounting 3.3 Installation Conditions 3.3.1 Dimensions 94 (3.7") 65 (2.56") 85 (3.35") Ø 129 (5.08") 68 (2.68") 60 (2.36") inactive length flange adapter (see under) 30 (1.18") detail A: 93 (3.66") E+H UNI flange (max. 1 bar) DIN, ANSI, JIS 8 (0.31") 238 (9.37") ENDRESS+HAUSER Micropilot II Ø 150 (5.91") L DN150 / 6” version without widening DN200…300 / 8…12” version with antenna widening detail A flange hub for the connection to flanges provided by the customer Ø 78 (3.
Mounting Radar Tank Gauge 3.3.2 Engineering tips Measuring conditions • The measuring range starts at the bottom end of the stilling well. • In case of media with a low dielectric constant (groups A and B), the pipe end can be visible through the medium at low levels. 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 (see Fig.).
7532 Mounting 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. Product class DK (εr) A 1.4 … 1.9 B 1.
Mounting Radar Tank Gauge reference point of measurement BD Max. Level Blocking distance (BD) from Flange 20 mA 100% L00-FMR53xxx-15-00-00-en-003 Blocking distance The blocking distance (= BD) is the minimum distance from the reference point of the measurement (mounting flange) to the medium surface at maximum level. Stilling well / Bypass 7532 RTG 1 m/40" Note! Inside the blocking distance a reliable measurement can not be guaranteed.
7532 Mounting 3.4 Installation instructions 3.4.1 Mounting kit In addition to the tool needed for flange mounting, you will require the following tool: • 4 mm Allen wrench for turning the housing. 3.4.
Mounting Radar Tank Gauge Examples for the construction of stilling wells 7532 RTG L00-FMR532xx-17-00-00-en-004 7532 RTG 18 Installation and Operations Manual
7532 Mounting 3.4.3 Turn housing After mounting, the housing can be turned 350° in order to simplify access to the display and the terminal compartment.
Mounting Radar Tank Gauge 3.4.4 Installation with Varec UNI flange L00-FMR53xxx-06-00-00-en-001 Installation tips Varec UNI flanges are designed for non-pressurized operation respectively max. 1 bar absolute pressure. 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. 20 Version Compatible with D [mm] K [mm] Type plate no.
7532 Mounting R532xx-00-00-06-en-002 Preparation for the installation of the Varec UNI flange 21
Mounting Radar Tank Gauge 16 pull off housing 17 mount Varec UNI flange Varec UNI flange (max. 1 bar) detail A: flange adapter (see under) detail A flange hub for the connection to flanges provided by the customer Ø 78 mounting: 4 bolts M6 / 90˚ e.g. DIN 912 9 O-Ring 85.3 x 3.53, included (same material as sensor seal) flange hub Ø 99.5 22 L00-FMR532xx-00-00-06-en-003 Ø 62.
7532 Mounting 3.4.5 Mounting with Sample hatch on stilling well Installation tips For control and cleaning purposes as well as for hand dipping (tape), a sample hatch gauging is recommended. The sensor head 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.
Mounting Radar Tank Gauge 3.4.6 Mounting with Pivoting element L00-FMR53xxx-17-00-00-en-013 Installation tips The Pivoting element serves to swivel the 7500 RTG 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, special offers available under ref. number MVTFM0422. 3.
7532 Wiring 4 4.1 Wiring Quick wiring guide When grounding conductive screens, the corresponding directives EN 60079-14 and EN 1127-1 must be observed.
Wiring Radar Tank Gauge " Before connection please note the following: ● The power supply must be identical to the data on the nameplate (1). ● Switch off power supply before connecting up the device. ● Connect Equipotential bonding to transmitter ground terminal before connecting up the device. ● Tighten the locking screw: It forms the connection between the antenna and the housing ground potential.
7532 Wiring Wiring with Tank Side Monitor 4590 " Before connection please note the following: ● The power supply must be identical to the data on the nameplate (1). ● Switch off power supply before connecting up the device. ● Connect Equipotential bonding to transmitter ground terminal before connecting up the device. ● Tighten the locking screw: It forms the connection between the antenna and the housing ground potential.
Wiring Radar Tank Gauge 4.2 Connecting the measuring unit L00-FMR53xxx-04-00-00-en-001 Terminal compartment The housing comes with a separate terminal compartment. Load HART Minimum load for Hart communication: 250 Ω Cable entry Cable gland: M20x1.5 or Pg13.5 Cable entry: G ½ or ½ NPT Supply voltage Direct current voltage: 16…36 VDC .
7532 Wiring 4.2.1 Connection to Tank Side Monitor 4590 See page 27. 4.2.2 HART connection with two Varec RN 221 N - ToF Tool FXA 193 RN 221N power supply 4...20 mA L00-FMR53xxx-04-00-00-en-004 signal dsdmdm df das. asdas fa asas la.
Wiring Radar Tank Gauge 4.3 Equipotential bonding Connect the Equipotential bonding to the external ground terminal of the transmitter. Caution! In Ex applications, the instrument must only be grounded on the sensor side. Further safety instructions are given in the separate documentation for applications in explosion hazardous areas. 4.4 Degree of protection • housing: IP 65, NEMA 4X (open housing: IP20, NEMA 1) • antenna: IP 68 (NEMA 6P) 4.
7532 Operation 5 5.
Operation – Radar Tank Gauge + X E F 2x X X F O ... S X >3 s ... F O O S S ... Selection and configuration in Operation menu: 1.) Change from Measured Value Display to Group Selection by pressing F 2.) Press S or O to select the required Function Group (e.g.. "basic setup (00)") and confirm by pressing F ➜ First function (e.g. "tank shape (002)") is selected. Note! The active selection is marked by a in front of the menu text. 3.) Activate Edit mode with O or S.
7532 Operation 5.1.1 General structure of the operating menu The operating menu is made up of two levels: • Function groups (00, 01, 03, …, 0C, 0D): The individual operating options of the instrument are split up roughly into different function groups. The function groups that are available include, e.g.: "basic setup", "safety settings", "output", "display", etc. • Functions (001, 002, 003, …, 0D8, 0D9): Each function group consists of one or more functions.
Operation Radar Tank Gauge Display and operating elements Figure 5: Layout of the display and operating elements 5.2.1 Display L00-FMR53xxx-07-00-00-en-003 5.2 Liquid crystal display (LCD): Four lines with 20 characters each. Display contrast adjustable through key combination.
7532 Operation 5.2.2 Display symbols The following table describes the symbols that appear on the liquid crystal display: Symbols Meaning ALARM_SYMBOL This alarm symbol appears when the instrument is in an alarm state. If the symbol flashes, this indicates a warning. LOCK_SYMBOL This lock symbol appears when the instrument is locked,i.e. if no input is possible. COM_SYMBOL This communication symbol appears when a data transmission via e.g. HART, PFOFIBUS-PA or Foundation Fieldbus is in progress.
Operation Radar Tank Gauge 5.2.3 Key assignment The operating elements are located inside the housing and are accessible for operation by opening the lid of the housing.
7532 Operation 5.3 Local operation 5.3.1 Locking of the configuration mode The 7500 RTG can be protected in two ways against unauthorized changing of instrument data, numerical values or factory settings: "unlock parameter" (0A4): A value <> 100 (e.g. 99) must be entered in "unlock parameter" (0A4) in the "diagnostics" (0A) function group. The lock is shown on the display by the symbol and can be released again either via the display or by communication.
Operation Radar Tank Gauge 5.3.2 Unlocking of configuration mode If an attempt is made to change parameters when the instrument is locked, the user is automatically requested to unlock the instrument: "unlock parameter" (0A4): By entering the unlock parameter (on the display or via communication) 100 = for HART devices the 7500 RTG is released for operation. Hardware lock: After pressing the O and S and F keys at the same time, the user is asked to enter the unlock parameter 100 = for HART devices.
7532 Operation 5.3.3 Factory settings (Reset) Caution! A reset sets the instrument back to the factory settings. This can lead to an impairment of the measurement. Generally, you should perform a basic setup again following a reset.
Operation Radar Tank Gauge 5.4 Display and acknowledging error messages Type of error Errors that occur during commissioning or measuring are displayed immediately on the local display. If two or more system or process errors occur, the error with the highest priority is the one shown on the display. The measuring system distinguishes between two types of error: • A (Alarm): Instrument goes into a defined state (e.g. MAX 22 mA) symbol.
7532 Operation 5.5 HART communication Apart from local operation, you can also parameterize the measuring instrument and view measured values by means of a HART protocol. There are two options available for operation: • Operation via the universal handheld operating unit, the HART Communicator DXR 375. • Operation via the Personal Computer (PC) using the operating program (e.g. ToF Tool or Commuwin II) (For connections, see page 29). • Operation via the Tank Side Monitor 4590. 5.5.
Operation Radar Tank Gauge Note! Further information you may find on the CD-ROM, which is enclosed to the instrument.
7532 Operation 5.5.3 Commuwin II-Operating Program Commuwin II is an operating software with graphical support for intelligent transmitters with the communication protocols Rackbus, Rackbus RS 485, INTENSOR, HART or PROFIBUS-PA. It is compatible with the operating systems Win 3.1/3.11, Win95, Win98 and WinNT4.0. All functions of Commuwin II are supported. The configuration is made via operating matrix or graphic surface. A envelope curve can be displayed in ToF Tool.
Operation 44 Radar Tank Gauge Installation and Operations Manual
7532 Commissioning 6 6.1 Commissioning Function check Make sure that all final checks have been completed before you start up your measuring point: • Checklist “Post installation check” (see page 24). • Checklist “Post connection check” (see page 30). 6.2 Commissioning 6.2.
Commissioning Radar Tank Gauge 6.
7532 Commissioning Commissioning flange: reference point of measurement BD measuring cond. basic setup (standard) SD D measuring cond. E F empty calibr. L full calibr. pipe diameter (for bypass/stilling well) E = empty calibr. (= zero) settings in 005 D = distance (distance flange / product) display in 0A5 SD = safety settings settings in 015 mounting calibr. mapping F = full calibr. (= span) settings in 006 L = level display in 0A6 BD = blocking dist.
Commissioning Radar Tank Gauge To successfully commission a precise measurement to the nearest mm, it is important you carry out a history reset on first installation after mechanical installation and after the basic setup of the device (see Page 56). Only after a history reset the mounting calibration is carried out. Enter the measurement offset as the first point in the dip table for the mounting calibration.
7532 Commissioning 6.4 Basic Setup with the VU 331 Function "measured value" (000) ⇒ – + E This function displays the current measured value in the selected unit (see "customer unit" (042) function). The number of digits after decimal point can be selected in the "no.of decimals" (095) function. The length of the bargraph corresponds to the percentile value of the present measured value with regard to the span. 6.4.
Commissioning Radar Tank Gauge Function "medium property" (003) ⇒ – + E This function is used to select the dielectric constant. Selection: • unknown • < 1.9 • 1.9 ... 4 • 4 ... 10 • > 10 Product class DK (er) A 1,4 … 1,9 B 1,9 … 4 non-conducting liquids, e.g. benzene, oil, toluene, … C 4 … 10 e.g. concentrated acids, organic solvents, esters, aniline, alcohol, acetone, … D > 10 Examples non-conducting liquids, e.g. liquefied gas 3) conducting liquids, e.g.
7532 Commissioning Function "process cond." (004) ⇒ – + E This function is used to select the process conditions. Selection: • standard • calm surface • turb. surface • agitator • fast change • test:no filter standard calm surface For all applications that do not fit into any of the following groups. Storage tanks with immersion tube or bottom filling The filter and output damping are set to average values. The averaging filters and output damping are set to high values. -> steady meas.
Commissioning Radar Tank Gauge Function "empty calibr." (005) ⇒ – + E L00-FMR2xxxx-14-00-06-en-008 This function is used to enter the distance from the flange (reference point of the measurement) to the minimum level (=zero). Caution! For dish bottoms or conical outlets, the zero point should be no lower than the point at which the radar beam hits the bottom of the tank. Function "full calibr.
7532 Commissioning Note! If bypass or stilling well was selected in the "tank shape" (002) function, the pipe diameter is requested in the following step. Function "pipe diameter" (007) ⇒ – + E This function is used to enter the pipe diameter of the stilling well or bypass pipe. 100% 0% 0% ø ø d2 L00-FMR532xx-14-00-00-xx-001 100% Microwaves propagate slower in pipes than in free space.
Commissioning Radar Tank Gauge Function "check distance" (051) ⇒ – + E This function triggers the mapping of interference echoes. To do so, the measured distance must be compared with the actual distance to the product surface. The following options are available for selection: Selection: • distance = ok • dist. too small • dist. too big • dist.
7532 Commissioning Function "range of mapping" (052) ⇒ – + E This function displays the suggested range of mapping. The reference point is always the reference point of the measurement (see page 46). This value can be edited by the operator. For manual mapping, the default value is: 0 m. Function "start mapping" (053) ⇒ – + E This function is used to start the interference echo mapping up to the distance given in "range of mapping" (052).
Commissioning Radar Tank Gauge Display "dist./meas.value (008)" ⇒ – + E The distance measured from the reference point to the product surface and the level calculated with the aid of the empty alignment are displayed again. Check whether the values correspond to the actual level or the actual distance.
7532 Commissioning 6.5 Mounting calibration with VU 331 6.5.1 Function group "mounting calibr." (03) ⇒ – + E Function "tank gauging" (030) ⇒ – + E Using this function, you can either enter a dip table or carry out an auto-correction. Function "auto-correction" (031) ⇒ – + E When measuring levels with radar systems, so-called "multipath reflections" can affect the level signal giving rise to serious measuring errors.
Commissioning Radar Tank Gauge correction table), the maximum permissible filling speed is 100 mm level change / min. After this, the fill speed has no limitation. Function "pipe diam. corr." (032) ⇒ – + E For level measurement in stilling wells, radar systems require highly precise pipe inner diameter data. An mm-exact level measurement cannot be guaranteed for deviations from the actual stilling well inner diameter of more than ± 0.1mm to the value entered in the function group "basic setup" (00).
7532 Commissioning Display "custody mode" (0A9) ⇒ – + E This indicates the instrument calibration mode. The calibration mode (active) can be set using the hardware security lock on the electronics (see Page 34). Selection: • inactive • active pos. • active neg. active pos. The custody mode (instrument is lead-sealed and accurate to the nearest mm) is active and is held. active neg. Custody mode (instrument is lead-sealed and accurate to the nearest mm) is activated and not held, e.g.
Commissioning Radar Tank Gauge Dip table The dip table is used to correct the level readings of the 7500 RTG using independently taken hand dips. The dip table is used in particular to adapt the level gauge to the specific application conditions as mechanical offset and tank/stilling well design. Depending on national regulations, national inspectors will dip the tank at one to three levels during a calibration run and check the level readings.
7532 Commissioning Note! The dip table can be printed out using the ToF-Tool. Before doing this, the ToF Tool must be reconnected to the instrument in order to update the values within the ToF Tool. Note! Make your inputs into the dip table in semi-automatic mode. We advise you to leave "auto correction" (031) activated ("on") while you enter your inputs. Caution! After entering one or more points into the dip table, make sure that the dip table is activated and left in the "table on" dip table mode.
Commissioning Radar Tank Gauge manual The value pairs in the dip table can be read and written. You can enter the measured value and the dip value. –uncorrected measured value: This is the measured value supplied by the instrument, NOT corrected by the dip table. The choice of measured value, level or remaining fill height is dependent on the instrument setting. –Dip value: This is the level or distance to flange respectively, given by the hand dip. This value should be used to correct the measured value.
7532 Commissioning Function "dip table handl." (036) ⇒ – + E Use this function to enter the dip value (level or distance) which will correct the measurement values. Selection: • new point • edit point • store point • delete point • return • next point • previous point General procedure: To enter a new point into the dip table, use "new point" to enter the value (pairs), "store point" to sort the new value (pairs), "return" to go to the dip table mode and "table on" to activate the dip table.
Commissioning Radar Tank Gauge delete point The currently displayed point is deleted from the table. After deletion, the previous point is displayed. If the table only consisted of one point before deletion, then the current measured variable is displayed as a value pair. return By selecting this point, you return to the function "dip table mode" (033). next point This scrolls down in the table. If the table is empty, you can still select this option. However, the displayed value does not change.
7532 Commissioning 6.5.2 Envelope curve with VU 331 After the basic setup, an evaluation of the measurement with the aid of the envelope curve ("display" (09) function group) is recommended. Function "plot settings" (09A) ⇒ – + E Here you can select which information is shown on the display: • envelope curve • env. curve+FAC (for FAC see 7500 RTG "Service manual and description of instrument functions") L00-FMRxxxxx-07-00-00-en-004 • env. curve+suppress. (i.e.
Commissioning Radar Tank Gauge 6.6 Basic Setup with the ToF Tool To carry out the basic setup with the ToF Tool operating program, proceed as follows: • Start the ToF Tool operating program and establish a connection • Select the "basic setup" function group in the navigation bar The following display appears on the screen: Basic Setup step 1/5: • Status image • Enter the measuring point description (TAG number).
7532 Commissioning Basic Setup step 2/5: • Enter the application parameters: –tank shape (for a description, see page 49) –medium property (for a description, see page 50) –process cond. (for a description, see page 51) Basic Setup step 3/5: If "stilling well" or "bypass" is selected in the "tank shape" function, the following display appears on the screen: • empty calibr. (for a description, see page 52) • full calibr.
Commissioning Radar Tank Gauge Note! You can also specify the pipe diameter in this display. Basic Setup step 4/5: • This step starts the tank mapping • The measured distance and the current measured value are always displayed in the header • A description is given on page 56 measured value distance Step 5/5: After the first installation of the device, initialise the index correction table (compare page 57) by activating the history reset 555.
7532 Commissioning 6.6.1 Envelope curve with the ToF Tool After the basic setup, an evaluation of the measurement using the envelope curve is recommended. 6.6.2 User-specific applications (operation) To set the parameters of user-specific applications, see the 7500 RTG "Service manual and description of instrument functions".
Commissioning Radar Tank Gauge 6.7 Mounting calibration with the ToF Tool To carry out the basic setup with the ToF Tool operating program, proceed as follows: • Start the ToF Tool operating program and establish a connection • Select the "mounting calibr." function group in the navigation bar The following display appears on the screen: Mounting calibration step 1/2: • auto correction (description see page 57) • pipe diam. corr.
7532 Commissioning Mounting calibration step 2/2: • dip table mode (description see page 61) • meas. v. (description see page 62) • dip value (see page 62) • dip table handl. (description see page 63) • dip table state (description see page 61) • left dip t.entr.
Commissioning 72 Radar Tank Gauge Installation and Operations Manual
7532 Maintenance 7 Maintenance The 7500 RTG measuring instrument requires no special maintenance. Exterior cleaning When cleaning the exterior of measuring devices, always use cleaning agents that do not attack the surface of the housing and the seals. Replacement After a complete 7500 RTG or electronic module has been replaced, the parameters can be downloaded into the instrument again via the communication interface.
Maintenance 74 Radar Tank Gauge Installation and Operations Manual
32 Accessories 8 Accessories Various accessories, which can be ordered separately from Varec, are available for the 7500 RTG. L00-FMR53xxx-00-00-06-en-001 Weather protection cover A Weather protection cover made of stainless steel is available for outdoor mounting (order code: 543199-0001). The shipment includes the protective cover and tension clamp. Commubox FXA 191 HART For intrinsically safe communication with ToF Tool or Commuwin II via the RS 232Cinterface.
Accessories 76 Radar Tank Gauge Installation and Operations Manual
7532 Troubleshooting 9 9.
Troubleshooting Radar Tank Gauge L00-FMR53xxx-19-00-00-en-010 7500 RTG - Troubleshooting 78 Installation and Operations Manual
7532 Troubleshooting 9.2 System error messages Code Description Possible cause Remedy A102 checksum error general reset & new calibr.
Troubleshooting Radar Tank Gauge Code Description Possible cause Remedy A270 custody switch undef check position switch for custody transfer may be defective check position of custody switch exchange electronics inconsistency between phase and amplitude evaluation inconsistent microfactor inconsistent index mapping check basic calibration check mounting calibration check echo quality reset history "555" check stilling pipe diameter switch off autocorrection # A272 electronics defect amplifier
7532 Troubleshooting 9.3 Application errors Error Output Possible cause Remedy A warning or alarm has occurred. Depending on the configuration See table of error messages (see page 79) 1. See table of error messages (see page 79) Measured value (00) is incorrect D m/ft (008) Measured distance (008) OK? F m/ft yes → 1. Check empty calibr. (005) and full calibr. (006). 2. Check linearization: → level/ullage (040) → max.
Troubleshooting Error If the surface is not calm (e.g. filling, emptying, agitator running), the measured value jumps sporadically to a higher level Radar Tank Gauge Output 20 mA/100% actual expected Possible cause Remedy Signal is weakened by the rough surface — the interference echoes are sometimes stronger 1. Carry out tank mapping → basic setup 2. Set the process cond. (004) to "turb. surface" or "agitator" 3. Increase the output damping (058) 4. Optimize the orientation t→ 4 mA/0% 5.
7532 Troubleshooting 9.4 Spare parts Note! You can order spare parts directly from your Varec service organization by giving the order code and the serial number which is printed on the measuring transducer nameplate (see page 7). The corresponding spare part number also appears on each spare part. Installation instructions are given on the instruction card that is also delivered. Note! If the calibration seal is broken, the national calibration authority should normally be informed within 24 hours.
Troubleshooting Radar Tank Gauge 7532 RTG L00-FMR532xx-00-00-06-en-001 The customer may exchange modular assemblies in accordance with Varec instructions! 84 Installation and Operations Manual
7532 Troubleshooting Spare parts 7532 RTG Process connection without antenna Planar antenna 7532 RTGdetailed order structure and variants see spare parts price list O-ring 49,21 x 3,53 EPDM (Seal set 52005628) O-ring 49,21 x 3,53 EPDM (Seal set 52005628) O-ring 85,32 x 3,53 FKM (green) 85,32 x 3,53 HNBR12-70 (black) 5200 6193 5200 6332 5200 6194 5200 6333 5200 6195 5200 6334 Antenna size Seal DN 150 ( 6") DN 150 ( 6") DN 200 ( 8") DN 200 ( 8") DN 250 (10") DN 250 (10") HNBR FKM HNBR FKM HNBR FK
Troubleshooting Radar Tank Gauge Housing T12 The complete order code must be specified when ordering the replacement housing so that the correct nameplate can be delivered, e.g. • 7532 RTG-AACWJAC1AA You must label the nameplate yourself. Caution! • It is not possible to convert a standard instrument into an Ex instrument by simply exchanging parts. • When repairing certified instruments, the relevant regulations must be followed.
7532 Technical data 10 Technical data 10.1 Technical data at a glance Application Application The 7500 RTG is 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. • The 7532 RTG with planar antenna is specifically and only suited for stilling well applications with ranges up to 38 m (124 ft).
Technical data Radar Tank Gauge Auxiliary energy Electrical connection Housing T 12 with separate terminal compartment. Load HART Minimum load for HART communication: 250 Ω Cable entry Cable gland: M20x1.5 or Pg13.5 Cable entry: G ½ or ½ NPT Supply voltage See page 28 Power consumption Max. 330 mW at 16 V, max. 500 mW at 24 V, max. 600 mW at 30 V. Current consumption Max. 21 mA (50 mA inrush current). Power supply For stand alone operation recommended via e.g. Varec RN 221N/Z.
7532 Technical data Inventory Control Versions All device types can be delivered as "Inventory Control Versions" with a reduced accuracy of ± 3mm (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 feature »70« in the order code section »Custody transfer approvals« on page 8.
Technical data Radar Tank Gauge Mechanical construction Design, dimensions See page 13 Weight Approx 6 kg + weight of flange Material See page 8 Process connection see page 8 All process connections dispose of a gas-tight glass feed-through to prevent any gas leakage to the inside of the housing. Human interface Operation concept See page 31 Display See page 31 Certificates and approvals CE approval The measuring system meets the legal requirements of the ECguidelines.
7532 Appendix 11 11.
Appendix Radar Tank Gauge basic setup 00 tank shape 002 safety settings 01 output on alarm medium property 003 unknown DK: < 1.9 DK: 1.9 … 4 DK: 4 … 10 DK: > 10 dome ceiling horizontal cyl. bypass stilling well flat ceiling sphere process cond. 004 010 outp. echo loss MIN -10% 3.6mA MAX 110% 22mA hold output on alarm 011 tank gauging 030 dip table mode enter value 012 delay time ramp %/min ramp %MB/min 013 dip table state 037 dip table 034 dip table handl. meas.v.
7532 Appendix dist./meas.value 008 check distance 051 D and L are displayed range of mapping 052 start mapping 053 off on input of mapping range distance = ok dist. too small dist. too big manual history reset 009 no yes dist. unknown 015 from blocking distance default: 0.1m auto correction in safety dist. 016 031 pipe diam. corr. ackn. alarm 017 no yes alarm warning self holding overspill protection 018 standard german WHG 032 off on off on max. scale 046 max.
Appendix Radar Tank Gauge 11.
V-CWII V0 V1 V2 V3 V4 V5 V6 V7 V9 VA Function group 00 basic setup 01 safety settings 03 mounting calibr. 04 linearisation 05 extended calibr. 06 output 09 display 0D service 0A diagnostics 0C system parameter tag no. present error commun. Address level/ullage tank gauging output on alarm measured value H0 H1 previous error no. Of preambels check distance linearisation auto correction output on alarm Operating Matrix HART / COMMUWIN II protocol+sw-no.
Appendix Radar Tank Gauge 11.3 Description of functions Note! A detailed description of the function groups, functions and parameters is given in the the 7500 RTG "Service manual and description of instrument functions".
7532 Appendix 11.4 Function and system design 11.4.1 Measuring principle L00-FMR53xxx-15-00-00-en-001 The 7500 RTG 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.
Appendix Radar Tank Gauge Output The 7500 RTG is commissioned by entering an empty distance E (=zero), a full distance F (=span), and an application parameter. The application parameter automatically adapts the instrument to the measuring conditions. The data points “E” and “F” correspond with 4mA and 20mA for instruments with current output. They correspond with 0 % and 100% for digital outputs and the display module. A linearization with max.
7532 Appendix On-site operation: • with display and operating module VU 331, • with a Personal Computer, FXA 193 and the operating software ToF Tool. The ToF Tool is a graphical operating software for instruments from Varec that operate based on the time-of-flight principle (radar, ultrasonic, guided micro-impulse). It assists with commissioning, securing data, troubleshooting, and documentation of the measuring point.
Appendix Radar Tank Gauge 11.4.3 Custody transfer mode 7500 RTG is a weight and measure approved level transmitter. Either the innage or the ullage can be selected as the custody transfer variable. The selected variable is the basis for the subsequent calculation of the current amount of product in a tank, along with other measured variables such as (average) temperature and pressure.
7532 Appendix 11.4.5 Particularities in "approved" operation The 7500 RTG level radar is set to custody transfer mode after commissioning using a custody locking switch (see page 36). The position of the custody locking switch is secured and sealed using the sealing pin. During custody transfer measurement, all custody transfer-relevant functions for operation are automatically locked, so that the device software can not be used, either via local operation or via digital communication settings.
Appendix Radar Tank Gauge 11.4.7 Integrated on tank gauging system The Varec Tank Side Monitor 4590 provides integrated communications for sites with multiple tanks, each with one or 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...
Radar Tank Gauge Index Index A Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Alarm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Antenna extension . . . . . . . . . . . . . . . . . . . . . . . 75 Antenna size . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Approval after installation . . . . . . . . . . . . . . . . . 100 Auto-correction . . . . . . . . . . . . . . . . . . . . . . . . . . 57 B Basic Setup . . . . . . . . . . . . . . . . . . . .
Radar Tank Gauge P Parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Phase evaluation . . . . . . . . . . . . . . . . . . 51, 57, 60 Pipe diam. corr. . . . . . . . . . . . . . . . . . . . . . . . . . 58 Pipe diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Pivoting element. . . . . . . . . . . . . . . . . . . . . . . . . 24 Post-installation check . . . . . . . . . . . . . . . . . . . . 24 Power consumption . . . . . . . . . . . . . . . . . . . . . .
7532 Notes IOM027FVAE0804 105
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