ERDCO Flow Meters and Indicators - 3100

The glass encapsulated reed switches are SPDT rated at 0.25 amperes at 120vac (1.5 amperes at 24vdc). This switch is appropriate for use in Class I, Division 2 areas.

The output signal is linear within the middle 80% of the range and well suited for tracking utility applications. A response curve is furnished with each flow meter. Transmitter signal options include:

4-20 mA two wire loop powered
4-20 mA with concurrent 0-1000Hz frequency output
4-20 mA with two adjustable set points
Applications include valve modulation, remote metering, sub-metering, blending and totalizing. Use with ERDCO accessory displays for remote indication or totalizing.

Six signal and switch options are available:

4-20 mA two wire transmitter
4-20 mA transmitter and frequency output
4-20 mA transmitter with 2 adjustable setpoints
Low flow limit switch
High flow limit switch
Low and high flow limit switches
All instruments are calibrated to the liquid or gas flow conditions that you specify. A wide range of connection types, engineering units, signal options and sizes are available.

The Series 20 probe features 304 stainless steel probe and fitting construction with insertion length for 1.5 to 72 inch pipe sizes. This product is typically installed through 1.25/1.5 inch pipe tees, saddles or threaded spuds - all standard pipe fittings. Very popular method of installation is through a 1.5 inch port ball valve which provides for easy installation and removal.

A full compliment of instrumentation for indication of flow rate, totalization and control function is available. Make Turbo-Flo™ your flow measurement solution for water-based liquids.

The 22 Series probe has its own integral screw jack mechanism for "hot tap" insertion through a 1.5 inch full port ball valve at pressures up to 400 psig. By rotating the crank handle at the top of the probe, the turbine is lowered through the open ball valve into the stream. What an improvement over the "tighten down nuts on three threaded rods in rotation" method!

This instrument is ideal for periodic sampling or permanent installation. It is often used as a flow prover for other metering devices in large line sizes.

The 25 Series range offers high performance non-metallic materials of construction like DuPont Delrin® and PVC that are also more economical than stainless steel. Delrin® is a particularly good choice for water applications and due to its high natural lubricity, it resists coating from organics and mineral salts. We recommend PVC construction for use in PVC piping systems.

Probe lengths for use in up to 10 inch diameter pipe sizes are available. A full compliment of instrumentation for indication of flow rate, totalization and control functions are available.

The patented design of the turbine and shroud offer unique capabilities. In combination, turbine and shroud are highly directional, enabling detection of stream patterns as well as measurement of velocity. By adjustment of a pivot, the turbine may be rotated over 90 degrees for a vertical velocity measurement and insertion into pipe discharge ends. Small size permits measurement of streams as shallow as 1.5 inches. In addition to the 3 foot probe, extensions may be used for an overall reach of 21 feet enabling sewer surveys from street level.