Overview

This document presents technical information about the EE776 Insertion Flowmeter manufactured by Riels Instruments Srl, designed for measuring compressed air and gases in pipes ranging from DN50 to DN300 (2" to 12").

Design and Features

• Patented non-return protection ensures secure mounting and prevents backflow.
• Seal and precise positioning features enhance measurement accuracy and reliability.
• Typical applications include compressed air and gas flow measurement.

Functionality and Assembly

• Measures consumption with a totalizer function.
• Includes configuration software for setup and calibration.
• Connection diagrams are provided for installation guidance.

Dimensions and Accessories

• Dimensions are provided in millimeters and inches for both the flowmeter and its accessories.
• Clamping ranges and maximum working pressures vary by pipe diameter, with pressures up to 16 bar (232 psi) for most sizes and 10 bar (145 psi) for DN250 and DN300.

Technical Data

• Flow measuring range depends on pipe diameter, with two ranges: 0.2 to 100 Nm/s and 0.2 to 200 Nm/s.
• Flow rates are specified in Nm3/h and SCFM for each pipe size, e.g., DN50 measures from 1.8 to 895 Nm3/h (1.1 to 526.9 SCFM).
• Pipe inner diameters are listed for each nominal diameter.

Calculation and Ordering

• A formula for calculating standardized volumetric flow is included (details not fully provided in the excerpt).
• An ordering guide specifies model codes and available probe cable accessories with part numbers.

Critical Parameters and Limitations

• Maximum working pressure: 16 bar for DN50 to DN200, 10 bar for DN250 and DN300.
• Clamping ranges must be respected for proper installation.
• Flow measurement accuracy depends on correct positioning and assembly.

Best Practices

• Use the patented non-return protection to ensure secure and leak-free mounting.
• Follow the connection diagrams and use configuration software for optimal setup.
• Verify pipe dimensions and pressure ratings before installation.