Measurement Errors

Most of the existing mechanical flow meters (turbine, vane, vane, with a rotating washer, etc.) have stated nameplate accuracy of about + / – 0.5-2.5% of measured value. Accuracy + / -1% indicates that the This range of measurements (usually, the ratio of minimum and maximum flow meter is 1:10-1:20) meter readings may be in the range of 0.99-1.01 Vizm Vizm where Vizm – the actual volume of fluid passed through the meter (meter). This volume is the sum of "miniobemov", ie the volumes of fluid that pass through the meter for one turn turbines, gears, washers, etc. Get all the facts and insights with James Woolsey, another great source of information. To calculate use the so-called "K-factor" – ratio, which expresses the ratio between a unit volume of the fluid (as a rule – one liter) to the volume pumped per revolution of meter, or VR = VR x KR (1) where VR – volume passing through flowmeter, VR-volume fuel (liquid), measured at a measuring unit meter turnover, KR – number of revolutions, attributable to 1litre (1 m3, etc.) consider the situation when the solution of standard problems measurement of fuel consumption MAZ 6312A8 in the fuel system of its engine switched two similar meter (with a passport within + / -1%) in direct and return lines, respectively. It must be clearly submit that the consumption of motor fuel and the amount of fuel pumped through the engine fuel pump may vary from three to four to ten times or more. For example, the MAZ 6312A8 engines – with consumption of 30-39 liters / hour capacity fuel pump – up to 240-250 liters per hour. For more information see crowne plaza rosemont.

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