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Contalitri_volumetrico_a_ruote_ovali_VZF_riels

Contalitri_volumetrico_a_ruote_ovali_VZF_riels
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Contalitri_volumetrico_a_ruote_ovali_VZF_riels - 1

• display of total volume, resettable volume, and flow rate in m3, litres or US gallons2' • user-friendly, interactive parameter input • fuel oil meter with threaded orflanged connections • for mounting in horizontal or vertical positions Versions available on request: • different flange drillings, such as ANSI,JIS CONTOIL® flow meters work on the volumetrie principle of rotary pi- ston meters (positive displacement meters).The main features ofthis me- asuring principle are large measuring ranges, high accuracy suitability for high viscosities and independence from power supply; flow disturbances do not influence proper operation. Rotary piston, guide roller and drive are the only moving parts in contact with the liquid.Their movement is transmitted by a magnetic coupling through a sealing plate.The hydraulic part is completely separated from the totalising module. Measuring error limits: Reference conditions Measuring error limits according to technical data of meter in % of actual value for the whole measuring range. Reference conditions Calibration oil similar to extra light heating oil, density at 20 °C = 814 kg/m3 Viscosity = 5.0 mm2/s according to DIN 51757 /ISO 3104 (corresponds to 4.1 mPa.s) Horizontal mounting, readings from counter CONTOIL® Oil meters are neverto be tested with water, otherwise they will get damaged. Flow rate Housing/Measuring unii Housing with threaded ends Cast brass Spheroidal graphite iron GJS 40 Housing with flanges Spheroidal graphite iron GJS 40 Measuring chamber Rotary piston Cast brass Stainless steel Anodized aluminium Riels Instruments Srl. TS +39 049 8961771 - A +39 049 7l7368 .www.riels.it. info@riels.it

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Contalitri_volumetrico_a_ruote_ovali_VZF_riels - 2

Technical data Riels Instruments Srl. W+39 049 8961771 - A +39 049 7l7368 .www.riels.it. info@riels.it

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Passive analogue output ( I -2) • Update interval: • Max. output frequency fmax: • Update interval: • Insulation voltage: Adjustable functions Volume pulses Pulse value: Current signal Frequency signal Output frequency fmax: Pulse ratio: Frequency / Flowrate fi/Qi: Frequency / Flowrate iilQi : Limiting value switch Limit Qmin: Limit Qmax :

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Ordering specications Tutti i dati ed i contenuti di questa scheda sono di proprietà esclusiva di Riels Instruments For marine type approval (e.g. GL, LRS, DNV) Pressure drop curves Viscosity information Stokes, Centi-Stokes, mm2/s Pascal seconds, millipascal seconds Poise, Centipoise (outmoded) Kinematic viscosity Dynamic viscosity cSt x density = mPa.s Engler degrees °E to mPa.s: only use conversion table Saybolt units to mPa.s: only use conversion table Redwood units to mPa.s: only use conversion table

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Viscosity diagrams: -or a pressure drop of more than I bar; it is recommended to use the next larger meter size. Maximum permissible pressure drop = 3 bar Riels Instruments Srl. W+39 049 896I77I - A +39 049 7l7368 .www.riels.it. info@riels.it

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Minerai oil, viscosity 450 mPa.s VZO 25 mounted on pressure side of pumps select closest curve ©Assume max. permissible pressure drop = 1 bar © The intersection of curve F with the line correspon- ding to 1 bar gives a flow rate of 2000 l/h. Flow sensors (ali types) DN I 5,20,25: with threaded ends (ISO 228-1 ) DN 40: with threaded ends (ISO 228-1 ) Riels Instruments Srl. W+39 049 896I77I - A +39 049 7l7368 .www.riels.it. info@riels.it

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