The modular Viscotek Model 350 HTGPC is a high-temperature (150°F) gel-permeation chromatography (GPC) system that features automated sample preparation and delivery, self-cleaning inline sample filtration and a detector module that is easily removed for routine maintenance. The unit can be configured with a refractive index (RI) detector and low angle/right angle laser light scatttering (LALS/RALS) detector to provide absolute molecular weight, molecular size and other critical information.

The Enpac Ex data collector utilizes the latest advances in analog and digital electronics, including digital signal processing (DSP) and a powerful Sigma-Delta A/D converter to provide both speed and accuracy in the data collection process. It was specifically designed to meet ATEX Zone 0, a European Union category designation for areas where an explosive atmosphere is continuously present or present for long periods.

OxyTrak is an innovative sealed reference analyzer that uses a unique, miniaturized zirconium-oxide sensor with a sealed internal reference to accurately determine flue gas oxygen content, even with rapidly changing process conditions. With the sensor acting in “pump” mode, the current needed to maintain partial pressure equilibrium is proportional to the oxygen content. In addition, the Nernst voltage present during transients is used to instantly indicate the magnitude of oxygen content changes.

The customizable SEL-3351 system computing platform is designed to replace office-grade PCs in control house environments. It has a variety of configuration options, including protocol conversion, Human-Machine Interface (HMI), event report retrieval, Sequential Events Recorder (SER) reporting, automatic control, software logic, self-diagnostics, system configuration, and data concentration. The firm has also released the SEL-3301 Protocol Gateway, which provides reliable protocol conversion to connect older and newer equipment.

Designed for measuring dry bulk solids, regardless of the presence of surrounding vapor or moderate dust, the EasyTrak XP laser transmitter is housed in an explosionproof assembly with screw-on cover for quick and easy access. The dual-compartment design allows users to isolate the wiring and terminations from the sensing elements and internal electronics. Meeting the requirements for use in hazardous areas (FM and CSA — Class I, Division 1 and 2, Groups A, B, C, D), the EasyTrak XP’s rugged, powdercoated aluminum enclosure is rated for IP67 or NEMA 4X and DIP ratings.

The Rosemount 5400 is touted as the first radar transmitter to offer peak performance in all three areas vital to radar level measurement: Echosensitivity — the ability to detect weak radar echoes reliably; Echodynamics — the ability to handle weak and strong radar echoes simultaneously; and Echologics — the ability to ignore false echoes.

The Western Research Model IPS-4, developed for UV-VIS spectroscopy of liquids and gases, can measure up to eight wavelengths and quantify five measurement components simultaneously. It comes with chemometric capability to solve complex measurement problems. The unit offers the advantage of no moving parts, high signal-to-noise ratio, minimized stray light effects, wide linear dynamic range, and fast and full spectral acquisition (220–1,100 nm). The IPS-4 is engineered to withstand harsh outdoor, industrial environments.

The Model 501 FLOSWITCH is ideal for applications that require alarms for low- or no-flow conditions, excessive flow, or intermittent flow rates. The switches are available in plastic or stainless-steel construction. Featuring highly precise solid- state relay outputs with setpoints as low as 13 mL/min, they provide a cost-effective replacement to non-repeatable piston-type or rotameter-based alternatives. Integrated visual indicators display current status. Units may be used with pressures up to 500 psig.

The ACCU-TEMP Type MWR tank temperature-measurement sensor provides accurate and dependable average or spot temperature, while continuously indicating water/product interface. Lightweight for ease of installa- 20 www.cepmagazine.org May 2005 CEP What’sNew tion, the sensor features construction of corrosion-resistant stainless steel or Monel. The sensor can be used in tanks as high as 150 ft. Designed for direct immersion, the sensor requires only one tank entry opening.

The latest release of the D/3 Process Automation System (PAS), version 12.1, running under Windows Server 2003 and Windows XP Professional, includes new hardware interfaces for Modbus/TCP and Allen- Bradley DF-1 Ethernet I/O protocols, and enhanced support of ControlNet. It also features software enhancements to trending, configuration, the Sequence and Batch Language (SABL), alarming, graphics, diagnostics, and many more. The new version will not make a customers’ D/3 PAS obsolete.