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Biogas flowmeter

The thermal mass ST51A biogas flowmeter is designed specifically for dirty, potentially hazardous biogas processes. It gives system operators an accurate and repeatable mass flow measurement to facilitate system control, log gas production data, and provide mandated safety and environmental reporting information.

To survive in biogas processes, the ST51 flowmeter comes standard with 316 stainless-steel body construction and Hastelloy-C22 thermal sensors. It has no moving parts and is nonclogging, which eliminates the need for constant cleaning under wet, dirty biogas conditions. The ST51A meter comes with full global Division 1, Zone 1, Ex safety approvals.

The meter's electronics are housed in a durable NEMA 4X, IP67 dust/water ingress-protected and all-metal (aluminum or 316L stainless steel) enclosure with dual conduit ports in either NPT or M20 threading. The transmitter can be integrally mounted with the flow element (probe) or can be remote-mounted for installation flexibility. The instrument comes standard with dual 4-20 mA, NAMUR NE43 compliant outputs and a 500-Hz pulse output.

The model adds digital communications via the HART, Version 7, protocol. It provides plant staff with digital data on flow rate and temperature parameters, the instrument's health, fault diagnostics, and asset management information. It can also make field configuration changes if needed by using standard HART portable communicators.

Profinet interface

The IN-FLOW mass flowmeters and controllers are made according to IP65 (dust- and waterproof). The instruments are available for flow ranges from 0.05-1 mln/min up to 200-10000 m3/h air-equivalent. In addition to the optional ATEX approval for use in Category 3, Zone 2 hazardous areas, the series is now offered with FM approval for Class I, Division 2, which is important for the North American market.

A Profinet fieldbus interface is also available on the company’s industrial mass flowmeters and controllers for gases (for this new fieldbus, the FM and ATEX approvals are pending). The flexible architecture with its scope of functions enables machine automation: maximum performance and precision, flexible address assignment and modular design, fast commissioning thanks to open access, and defined interfaces and optimal diagnostics of devices and the network.

Laminar flow sensor

The EE660, designed for laminar flow monitoring and clean room applications, measures low air velocity. The transmitter is now also available with an RS485 interface. The EE660 is suitable for measurement of low air velocity down to 0.15 m/s (30 ft/min). It features an E+E hot film sensing element. Furthermore, the sensing element is resistant to contamination and has a low angular dependency. 

In addition to current and voltage outputs, the device now has an RS485 interface with Modbus RTU or BACnet MS/TP protocol, which allows for integration into a bus system. The EE660 is available for duct mount or with remote probe. The enclosure with external mounting holes facilitates installation with a closed cover. The measured data is also available on the optional display. Backlight and 180° rotatability allow reading in any mounting conditions.

The EE660 is user configurable with jumpers on the electronics board or via software. The adjustment and the display setup can be performed with an optional configuration adapter and the free EE-PCS product configuration software.
E+E Elektronik

Flow sensors

The company's flow switches alert users to potential failures due to a reduction in necessary fluid flow. The recently released BFF series of flow sensors, which are available in both thread-in and inline versions, provide a switching output that is activated when the flow falls below a user-defined rate. This makes it possible to notify users of system problems, such as the failure of a pumping system, a clogged filter, or leaks, before they cause critical issues or system shutdowns.

The completely solid-state calorimetric sensing technology measures temperature differential on each side of the sensing probe and has no moving parts. They are resistant to failures caused by dirt or foreign object buildup. The devices also have continual flow monitoring and visual display of flow with integrated light-emitting diodes.

The BFF series of flow sensors complement the company's existing line of temperature sensors and are an addition to the line of process-oriented sensor products.

Coriolis mass flowmeter

The Promass A flowmeter measures substances drop for drop. The flowmeter measures values with repeatability, even in cases where process and ambient conditions fluctuate. The measuring device is suited for installation, for example, in modular process facilities and skids.

The sensor system is mounted on a base plate that acts as a "shock absorber," effectively shielding the Coriolis measurement from outside interference, such as from pipe vibrations. Other contributing factors are the oscillation frequency of the measuring tube and its completely balanced oscillation behavior. At a specified maximum measured error of ±0.1 percent, high-precision measurements down to 8 g/min are possible, or-if the maximum error is permitted to be ±1 percent-even a quantity of less than 1 g/min can be measured.

Because of the variety of device options, such as nominal diameter, material, process connection, certification, transmitter type, or degree of protection, Promass A can be used in numerous applications. It is a small measuring device with a nominal diameter DN 1 (1/24"), so the flowmeter can also be installed in extremely tight spaces, such as in skids. A multitude of process connections are available, such as flanges, lap joint flanges, couplings, internal threads or Tri-Clamps. The flowmeter can be used at process temperatures between -50 and +205°C (-58 and +401°F).

Process flowmeter

The Rosemount 9295 helps end users streamline procurement, installation, operation, and maintenance. Design and purchasing consists of specifying and buying one assembly. Most field welding, cutting, fabrication, and other tasks are not required, because all components are fully assembled and leak checked. The Rosemount 9295 is a single assembly, but individual components can be replaced while it is in service. 

This integrated DP flowmeter assembly withstands the challenging environments and piping requirements found in refineries, chemical processing, and other heavy industrial plants. The device also has a welded spool section for drop-in installation, an all-welded design that meets piping requirements for hydrocarbon applications, roddable impulse lines for removal of impulse line blockages without shutting down the process, optional integral RTD for critical temperature reading to assist mass flow calculations, dual-tap configurations that support fully redundant DP transmitter assemblies for safety instrumented systems, and isolation valves that meet API 602 requirements and are designed to operate through years of continuous service. The flowmeter uses the Rosemount 3051S DP transmitter to deliver flow readings and device diagnostic information via HART.

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