New flow module has meter-proving capability
A new flow module with meter-proving capability is available to the industry.
The 140 MPM 204 00sc four channel flow and meter-proving module for the Modicon Quantum automation series PLC, combined with an analog input module and a programmable controller flow computer function block, offers the functionality of a dedicated flow computer.
The module promises flow measurement accuracy and the ability to support short and long meter-proving runs. The module offers versatility and flexibility with the ability to interface with as many as four AC or DC pulse sensor types. It provides double chronometry, allowing short run prover meter calibration and pulse fidelity checking for fail safe protection and improved system diagnostics.
As many as 16 meter runs are supported, each with proving and diagnostic capabilities. The module is an alternative solution for pipeline monitoring, custody transfer, and net oil measurement applications.
Source: Spectrum Controls Inc., Box 5533, Bellevue, WA 98006.
New continuous emission monitoring system
The new FGAII continuous emissions monitoring system measures CO, O2, CO2, NO, NO2, and SO2 in any combination.
It provides NOx measurement by directly measuring all nitrogen oxides present in flue gas. Using dual sensor technology, the analyzer gives high accuracy readings even at low pollutant levels, the firm says. The company adds that high levels of pollutants are measured equally successfully using a proved integral sample dilution system. The measurement system is fully temperature controlled for stability.
To complement its measuring system, a heated particle filter and a two-stage thermoelectric cooler have been integrated into a weatherproof stack-mounted unit. All sample gas transported to the analyzer is dry, removing the requirement for heated sample lines. The ChillerProbe is designed for ease of maintenance. Installation is simple and cost effective, the firm notes. Hot air blow-back from a built-in heated air tank is provided for automatic cleaning of the sample probe.
FGAII can be supplied with either automatic or manual calibration facilities. The analyzer has integral gas valves, full flow control, empty gas bottle detection, and can perform a three-point linearity audit as required by US EPA 40CFR75.
Source: Land Instruments International, 10 Friends Lane, Newtown, PA 18940.
New flow data logger is hand-held tool
The PT Flow Master is a new hand-held tool designed for velocity, turbulence, and flow mapping of process duct and flue gas airflows.
The instrument reports, displays, and logs information.
It is fully configurable; the user is able perform a traverse and sample at given intervals across the duct and log a complete mapping of the flow pattern within the duct.
It uses Pitot tube measurement technology and is suited to perform reference method testing in accordance with 40CFR60, Appendix A.
Source: Epsilon Technologies LLC, 112 Plant Ave., Wayne, PA 19087.
Transmitter uses natural gas as pneumatic supply
The new model IPX2 current-to-pressure transmitter has received Canadian Standards Association approval for use with natural gas as its pneumatic supply.
This allows the unit to be installed at gas gathering stations, compressor stations, pipeline feed applications, and booster stations where it is impractical or impossible to supply instrument air for pneumatic valve actuation, the cocmpany points out.
It is CSA approved to be used with sweet natural gas consisting of up to 20 ppm H2S. The approval allows installation in explosionproof hazardous areas (Class I, II, and III, Division I, Groups A-G). It is also CSA approved for intrinsically safe applications, with a NEMA 4X environmental protection rating.
Loop-powered, the IPX2 accepts a current signal (such as 4-20 ma) from a DCS, PLC, or PC-based control system. It converts the current signal to 22 available pneumatic signals proportional to the input (3-15 psig, 0.2-1 bar, and 20-100 kPa).
The transmitter is offered in a field-mount metal enclosure that stands up to installation in harsh field conditions, the firm says. In addition to natural gas, available models handle standard instrument air supplies.
For installation in harsh weather conditions, it is rated to operate in ambient conditions of -40° to +80° C. (-40° to +176° F.).
The IPX2 promises accuracy of ±0.25% of span, air capacity of 5 scfm, and immunity to the effects of RFI/EMI and vibration.
Source: Moore Industries-International Inc., 16650 Schoenborn St., North Hills., CA 91343.
