CONTOIL VZFA/VZOA 1550, versions for special requirements ...

1 17 CONTOIL VZFA/VZOA , versions for special requirements / applicationsFor applications requiring an increased accuracy of % or better, such as: Measurement of EL heating fuel or diesel in testing facilities Differential measurement Commercial transactions for which the meters are legally required to have type approval or official products require dirt filters with smaller mesh for differential measurementsFor differential measurements, the flow is measured in the supply and return pipes. The difference between the two measurements is re-garded as the obtain optimal measurement results, VZFA or VZOA CONTOIL fuel oil meters calibrated in pairs should only be used, which are adap-ted precisely to the plant/system operating conditions. The flow rate occurring in each meter, the permissible pressure drop and the visco-sity of the fluid must all be considered during the design phase.

2 The load on the meter is obtained as follows: flow in supply section lessconsumption = flow in return the order is placed, the following information is required: differential measurement for diesel engines in an emergency powersystem fuel diesel fuel 15 .. 40 C operating 4 bar flow rate in supply fixed pumping rate 200 l/h flow rate in return 120 .. 190 l/h (for a consumption of 10 .. 80 l/h)The meters are marked supply and return during calibration and final testing in the factory. They must then be installed in the further information on the subject of differential measurement, see the sections How to obtain an optimal measurement and "Appli-cation examples". versions with type approval or official verificationCONTOIL fuel oil meters are used almost exclusively for the measurement of the consumption of fuel oil. The metrological standards (suchas MID or EC guideline 71/319/EEC), however, regulate the requirements for meters and systems used for commercial transactions as wellas the procedures for design approval and official verification.

3 Measuring installations where a fluid is sold are regarded as transfer pointsthat require official verification. These include petrol pumps at petrol stations, measuring devices for road tankers and measuring stationsfor loading and unloading all types of road vehicles. As a rule, a metering system must be ready for use and be checked and sealed by thelocal office responsible for transfer of these applications is the narrow range of use with regard to liquid, flow rate and temperature. Subject to type approval restic-tions, CONTOIL oil meters are also available with metrological type approval or official verification. The differences in products relate on-ly to the design or specifications of the meter and not to the quality of the data 1) versions for optimal results from differential measurement or for fiscal or commercial transactions VZFA with electronic display of total volume, resettable volume and flow rate; units ofmeasurement: litres, US gallons 2) or m3.

4 VZOA with display of total volume on roller counter; units of measurement: versions with counter in US gallons. VZOA option: with RV reed or IN inductive pulser threaded or flanged connections available mounting in horizontal or vertical positions possible (for calibrated meters horizontally only). VZFA: User-friendly, interactive parameter input. Easy integration into control versions available on request: different flange drillings, such as ANSI, JIS1) Manufacturer's specification, valid for the reference conditions as specified under APPENDIX: Meter data .2) 1 US gallon corresponds to litres3) For burners and engines or motors, the meter must be selected on the basis of the permanent flow rate. For higher viscosities, or if the meter is installed on the suction side, the pressure drop and any reduction in the measu-ring range must also be taken into ) Weight without ) Two freely selectable outputs are available, totally independent of each diameterDNmm1520254050inch1/23/4111/22 Installation lengthmm165165190300350 Nominal pressure with threaded endsPNbar16 Nominal pressure with flangesPNbar25 Maximum temperatureTmax C130, 180 Maximum flow rateQmax3)l/ h60015003 0009 00030 000 Nominal flow rateQn3)l/ h40010002 0006 00020 000 Minimal flow rateQminl/ h103075225750 Approx.

5 Starting flow ratel/ h4123090300 Max. permissible error< of actual valueRepeatability filter mesh filter mesh of the measuring chamberapprox. cm312361003301200 Housing finishenamelled red RAL 3013 Weight with threaded ends 4)approx. Weight with flanges PN 25approx. readable amount:Total volumelNo decimalsResettable volumel1 decimal placeDigital flow rate displayl/ h1 decimal placeRegistration capacityl100 000 000 Registration time at Qnuntil overrunning to zeroh128 000100 00050 00016 6675 000 Outputs5)Pulse value for totalisorV/Imppulse value and width parameterisableCurrent mA for flow rate I4/ Q1,I20/ Q2flow rates to 4 and 20 mA parameterisableFrequency for flow ratef1/ Q1,f2/ Q2frequency and flowrate parameterisableLimiting value switchQmin,Qmaxminimum, maximum and hysteresis parameterisableVZOAS mallest readable capacitym3100010 00010 00010 000100 000 Registration time at Qnuntil overrunning to zeroh2 50010 0005 00016675 000 Pulse values of pulsers:IN inductive according to IEC 60947-5-6l/ Reedl/ Reedl/ pulse1 1010019 Technical data for VZOA with PTB certification.

6 / Class 1 Technical data for VZOA with type approval / EC verification: D 04 / items are required when ordering: the VZOA meter and EU verification, Order No. ) For burners and engines or motors, the meter must be selected on the basis of the permanent flow rate. For higher viscosities, or if the meter is installed on the suction side, the pressure drop and any reduction in the measu-ring range must also be taken into display and Outputs VZFAP lease refer to Electionic display and Outputs of VZF on pages 6 and Pulsers and IN Pulsers VZOAP lease refer to RV Pulsers and IN Pulsers of VZF on page drop curvesSee APPENDIX: Meter data Dimensions VZFAD imensions VZOAD etailed dimensional diagrams in APPENDIX: Meter data TypeVZOAVZOAVZOAVZOAVZOA1520254050 Temperature C130 Maximum flow rateQmax1)l/ h40010002000600020000 Nominal flow rateQn1)l/ h40010002000600020000 Minimal flow rateQminl/ h401002006002000 Accuracy class11111 Max.

7 Permissible error % of actual C50 Maximum flow rateQmax1)l/ h40010002000600020000 Nominal flow rateQn1)l/ h40010002000600020000 Minimal flow rateQminl/ h401002006002000 Accuracy permissible error % of actual 15 VZFA 20 VZFA 25 VZFA 40 VZFA 15 VZOA 20 VZOA 25 VZOA 40 VZOA 50 Length165165190300350 Width105105130210280 Typ .. 130 CHeight 106115142235291 Height -RV 130139166259315 Height -IN185194221273329 Typ .. 180 CHeight147156183235291 Height -RV 171180207259315 Height -IN22523426131336920 Type designation keyVZOA 25 FL 130 / 25-IN IN or RV and pulse valueNominal pressure barTemperature CConnection (RC = Threaded ends, FL = Flanges)Dimension mmTypeThreaded ends, PN16 Type 130 COrder 15 RC 130/1693755 VZFA 20 RC 130/1693758 VZFA 25 RC 130/1693763 VZFA 40 RC 130/169376821 Information required to process ordersWhen the order is placed, information is required on the plant operating conditions (as stated at the beginning of this section).

8 For fiscaland commercial transactions only VZOA type meters may be for differential measurement:Application:Differential measurement diesel, supply 200 l/h, return 120.. 190 l/h2 UnitsOrder No. 93758 CONTOIL fuel oil meter, type VZFA 20 RC 130/162 UnitsOrder No. 96112 Modification for differential measurementExample for fiscal or commercial transactions:Application:Commercial transactions in Germany, extra light heating oil,flow rate l/h, temperature approximately 20 C1 Unit Order No. 92290 CONTOIL fuel oil meter, type VZOA 20 RC 130/161 UnitOrder No. 96026 Modification with EC official verificationExample for standard applications without options:Application:Measurement of Diesel fuel on testing facility,flow rate l/h, temperature C1 UnitOrder No. 93758 CONTOIL fuel oil meter, type VZFA 20 RC 130/16 Ordering details for VZFA ( meters with electronic counters and parameterisable outputs)Flanges, PN25 Type 130 COrder 180 COrder 15 FL 130/2593756 VZFA 15 FL 180/2593757 VZFA 20 FL 130/2593759 VZFA 20 FL 180/2593760 VZFA 25 FL 130/2593764 VZFA 25 FL 180/2593765 VZFA 40 FL 130/2593769 VZFA 40 FL 180/2593770 VZFA 50 FL 130/2593773 VZFA 50 FL 180/2593774 ModificationsFor differential measurement96112 For marine type approval ( GL, LRS, DNV)9629522 Ordering details for VZOA (meter with roller counter)

9 Ends, PN16 Type 13 0 COrder 13 0 COrder 15 RC 130/1692286 VZOA 25 RC 130/1692293 VZOA 15 RC 130/16-RV 25 RC 130/16-RV 192294 VZOA 15 RC 130/16-RV 192288 VZOA 25 RC 130/16-IN 15 RC 130/16-IN 20 RC 130/1692290 VZOA 40 RC 130/1692296 VZOA 20 RC 130/16-RV 192291 VZOA 40 RC 130/16-RV 192297 VZOA 20 RC 130/16-IN 40 RC 130/16-IN , PN25 Type 130 COrder 130 COrder 15 FL 130/2592299 VZOA 40 FL 130/2592309 VZOA 15 FL 130/25-RV 40 FL 130/25-RV 192310 VZOA 15 FL 130/25-RV 192301 VZOA 40 FL 130/25-IN 15 FL 130/25-IN 20 FL 130/2592303 VZOA 50 FL 130/2592312 VZOA 20 FL 130/25-RV 192304 VZOA 50 FL 130/25-RV 1092313 VZOA 20 FL 130/25-IN 50 FL 130/25-IN 192314 VZOA 25 FL 130/2592306 VZOA 25 FL 130/25-RV 192307 VZOA 25 FL 130/25-IN , PN25 Type 180 COrder 180 COrder 15 FL 180/2592315 VZOA 40 FL 180/2592325 VZOA 15 FL 180/25-RV 40 FL 180/25-RV 192326 VZOA 15 FL 180/25-RV 192317 VZOA 40 FL 180/25-IN 15 FL 180/25-IN 20 FL 180/2592319 VZOA 50 FL 180/2592328 VZOA 20 FL 180/25-RV 192320 VZOA 50 FL 180/25-RV 1092329 VZOA 20 FL 180/25-IN 50 FL 180/25-IN 192330 VZOA 25 FL 180/2592322 VZOA 25 FL 180/25-RV 192323 VZOA 25 FL 180/25-IN differential measurement 96112 For marine type approval ( GL, LRS, DNV) 96295 With EC official verification96026 Option / AccessoryCable mounted on IN80019