Vortex Flow Meter for Gas/Natural Gas

Dimension

Vortex Flow Meter User Manual

Q1: What is a flow meter?
A1: A flow meter is a device that measures the flow rate or volume of a fluid, such as a liquid or gas, as it moves through a pipe or conduit. It provides real-time data on the amount of fluid passing a specific point, which is crucial for monitoring and controlling industrial processes, ensuring accurate dosing, and optimizing system performance. Flow meters come in various types and technologies, each suited for different applications and fluid properties.

Q2: How often should flow meters be calibrated?
A2: The frequency of flow meter calibration depends on several factors, including:

1. Application Requirements: High-precision applications may require more frequent calibration.
2. Fluid Type: Corrosive or abrasive fluids may necessitate more regular checks.
3. Operating Conditions: Extreme temperatures, pressures, or high flow rates can affect accuracy.
4. Manufacturer Recommendations: Follow the guidelines provided by the flow meter manufacturer.
5. Regulatory Standards: Some industries have specific calibration requirements.

As a general rule, flow meters are often calibrated annually, but this can vary. It’s also advisable to calibrate whenever there is a significant change in process conditions or if the flow meter shows signs of drift or performance issues.

Q3: What factors can affect flow meter accuracy?
A3: Several factors can affect the accuracy of a flow meter:

• Fluid Properties: Changes in fluid density, viscosity, or temperature can impact accuracy. For instance, varying fluid densities can affect measurement, especially in vortex and electromagnetic flow meters.
• Flow Conditions: Turbulence, flow profile, and pressure drops can influence measurements. Inaccurate readings can occur if the flow is not properly aligned with the meter.
• Installation Issues: Incorrect installation, such as improper pipe alignment or insufficient straight pipe sections before and after the meter, can cause inaccuracies.
• Temperature: Extreme temperatures can affect fluid properties and the meter's components, leading to measurement errors.
• Pressure: Variations in pressure can alter fluid density and viscosity, impacting flow meter accuracy.

Tips: Are vortex flow meters affected by fluid properties?

Yes, vortex flow meters are affected by fluid properties. Here’s how different properties can impact their performance:

• Density: Changes in fluid density can influence the vortex shedding frequency and, consequently, the flow measurement. Vortex flow meters are calibrated for specific fluid densities, and significant deviations can affect accuracy.
• Viscosity: Higher viscosity fluids may cause increased drag and alter vortex shedding patterns. This can impact the accuracy of flow measurement. Calibration adjustments may be needed for fluids with significantly different viscosities from the calibration standard.
• Temperature: Temperature changes can affect fluid density and viscosity. Vortex flow meters are often equipped with temperature compensation features to correct for these variations.
• Pressure: Pressure changes can also affect fluid density and viscosity, which can influence vortex shedding frequency. Like temperature, pressure variations may necessitate calibration adjustments or the use of pressure compensation features.
• Gas Composition: For gas measurements, the composition of the gas can impact the flow meter’s accuracy. Different gases have different densities and viscosities, which can affect vortex shedding.

Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.

What is covered?

SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.

What is not covered?

• Product purchased from anyone other than a SISCO store or a SISCO authorized reseller.
• Expendable parts.
• Routine cleaning or normal cosmetic and mechanical wear.
• Damage from misuse, abuse or neglect.
• Damage from use of parts other than SISCO approved.
• Damage from use outside the product’s usage or storage parameters.
• Damage from use of parts not sold by SISCO.
• Damage from modification or incorporation into other products.
• Damage from repair or replacement of warranted parts by a service provider other than a SISCO authorized service provider.
• Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.