Flow Meter Measurements & Calibration Trainer Model FM 50

Flow measurement study plays important role in fluid mechanics applications that becomes important in many process engineering systems. Different types of flow meters are used based on applications and processes. It becomes important to study the flow measurement using different type of flow meters and their calibration.

Sci-tech Flow Meter Measurements & Calibration Trainer Model FM 50 consists of a Venturi meter, variable area meter and an orifice flow meter and pitot tube, installed in series configuration to permit direct comparison. A flow control valve permits variation of the flow rate through the circuit. Pressure tapings are incorporated so that the head loss characteristics of each flow meter may be measured. These tapings are connected to a four or eight tube manometer bank incorporating a manifold with air bleed valve. Pressurization of the manometers is facilitated by a hand pump. The circuit and manometer are attached to a support framework which stands on ‘Sci-tech Hydraulic Bench FM 100F’. The Hydraulic Bench is used as the source of water supply and for calibrating volumetric flow of the meters. 

Optionally, differential pressure sensors, electro-magnetic flow rate sensors also available

Experiments

·  Directly comparing flow measurement using a Venturi meter, Variable area meter and Orifice plate.

·  Calibrating each flow meter using the volumetric measuring tank of the Hydraulic Bench.

·  Comparison of pressure drops across the device.

·   Accuracy of orifice flow meters

·   Losses and k value

·   Accuracy of Pitot tube flow meters

·   Losses and k value

·   Calculation of the coefficient of discharge

·   Velocity profile

·   Accuracy of Venturi flow meters

Specifications

Flow Meters

Ø  Used for comparing and showing the accuracy, losses and use of fundamental flow meters

Ø  ‘Quick-change’ flow meter adaptors and pressure connections

Ø  Minimum four tube manometer to show flow meter and overall pressure changes

Ø  Nozzle flow meter  

Ø  Downstream flow control valve

Ø  Calculation of the coefficient of discharge

Ø  Manometers with a common manifold fitted with an air valve

Ø  Hand-pump included which can be used to increase the air pressure in the manifold 

Orifice Flow Meter

Ø  Sharp-edged orifice flow meter for use with the Flow Meter Calibration unit 

Ø  Shows the accuracy and use of a sharp-edged orifice flow meter

Ø  Of ISO 5167 standard

Ø  Allows the user to measure pressures before and after an orifice for a given rate of flow

Ø  Manufactured in accordance with the latest EU directives

Pitot Tube

Ø  Pitot tube flow meter for using with the Flow Meter

Ø  Calibration unit 

Ø  Shows the accuracy and use of a Pitot tube flow meter

Ø  Flow meter fits quickly and easily into place between the adaptors in the base unit of the Flow Meter Calibration unit

Ø  The manometers of the calibration unit show the pressure differences at the flow meter and across the overall flow meter assembly

Ø  A precision micrometer head allows the user to accurately adjust the position of the Pitot tip that traverses across the inside of the pipe

Ø  The tip measures the change in pressure across the pipe for a given flow rate

Ø  A second tapping in the pipe wall measures the ‘static’ pressure

Plots of these pressures show the velocity profile in a pipe and explains the ‘boundary layer’ and surface friction in pipes and flow channels

Venturi Flow Meter

ØVenturi flow meter is used with the Flow Meter Calibration unit

ØShows the accuracy and use of a Venturi flow meter

ØFlow meter fits quickly and easily into place between the adaptors in the base unit of the Flow Meter Calibration unit

ØThe manometers of the calibration unit show the pressure differences at the flow meter and across the overall flow meter assembly

ØMade to ISO standards, flow meter allows the user to measure pressures before and after a Venturi constriction for a given rate of flow