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SGI - measuring grid for air measurement in pipelines

SGI - measuring grid for air measurement in pipelines

Product catalog summary
Introduction
The document describes the SGI, a specialized lattice arrangement of cylinder probes used for measuring flow distribution in pipes or channels. The SGI can be customized for different dimensions and is suitable for both edge and square channel cross-sections.

Specifications
  • Construction: Central tubes with laterally attached probe tubes.
  • Pressure Taps: 6 mm diameter plastic tubing for connection.
  • Materials and Temperature Limits:
    • DN200 round brass: Max 100 °C
    • DN200 round stainless steel 1.4571: Max 200 °C
    • DN500 round stainless steel 1.4571: Max 200 °C
  • Accessories: Camp GL-SGI for fixing the measuring grid.

Measuring Grid SGI Features
  • Designed for air measurement in pipelines using the dynamic pressure method.
  • Includes several cylinder pitot tubes.
  • Available in brass (up to 100 °C) or stainless steel (up to 450 °C).
  • Pressure connection of 6 mm.
  • Mounting parts are available.

Comments
The document notes the use of differential Peritact 80 and transmitters like MKM and 2000-K10 for measuring velocity ranges. Adjustments to the transmitter can allow for larger ranges.

Calculation Formula
The document provides a formula for calculating velocity (w) using differential pressure (∆p), density (ρ), and a coefficient (C) for cylindrical probes, specifically for Prandtl-pitot tubes.
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Catalog excerpts

SGI - measuring grid for air measurement in pipelines-1

For measure speed after the dynamic pressure method Arrangement of several cylinder pitot tube Central tubes with laterally attached probe tubes Material brass (up to 100 °C) or stainless steel (up to 450 °C) Pressure connection 6mm Mounting parts available The SGI is a special lattice arrangement of a plurality of cylinder probes, which are distributed over a cross section that can be at different flow distribution in a pipe found in a canal or a mean flow. The probe is connected to the grid and each pipe or channel dimensions can be customized. It can be made for the edge or square channel cross-sections. For larger sizes is usually required a thrust bearing. Specifications Construction: Pressure taps: Comment: The use of the differential Peritact 80 (± 1.5%) with the smallest range of 0...1 mbar results as a range for the lowest velocity 0...8 m / s. Grand calculation for cylinder position sensor and sensor grids: w = 200 x ∆р Cxρ The transmitter MKM (± 0.2%) and 2000-K10 Peritact (± 1%) with the smallest ranking of 0... 0.1 mbar as a result, the lowest range for velocity 0...3 m/s. Larger ranges are possible by adjusting the transmitter. central tubes with laterally attached probe tubes 6 mm ø plastic tubing for connection velocity in m/s differential pressure in mbar density at actual conditions in kg/m³ coefficient for cylindrical probe = 2 for Prandtl-pitot tube = 1 Measuring grid SGI Dimensions Other dimensions on request. ACCESSORIES Arthur Grillo GmbH • Am Sandbach 7 • 40878 Ratingen • phone 0 21 02 - 47 10 22 • fax 0 21 02 - 47 58 82 www.grillo-messgeraete.de/en • Email: [email protected] • web shop: www.sensor-store.de

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