A gas analyzer suitable for hazardous areas
Now approved by ATEX and CSA-C/US certifications, the X-Stream flameproof process gas analyzer is suitable for Class I, Zone 1 and Group IIB + H 2 hazardous areas without the need for pressurization systems. The device’s single- or dual-channel analyzer can be configured to read any two gases specified by the end user from over 60 readable compounds. Its front panel LEDs provide data measurments and analyzer status in five available languages. It has an ambient temperature range of –20 to 50°C (–4 to 122°F). The firm offers methods for "tropicalizing" individual units protecting sensitive analytical equipment from high ambient humidities. — Rosemount Analytical Inc., a div. of Emerson Process Management; Solon, Ohio,
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This device analyzes a wider range of hydrocarbons
Introduced this past June, The NGC 8209 has three analysis trains: two for gases in the N 2 to C 6 + range and another for gases and vapors in the C 6 + to C 9 + range. The device, which is designed for "on-the-pipe" installation near the sampling point, uses the XSeries software framework to integrate this heavier hydrocarbon (HC) data into calculations of heating value, wobbe, relative density and composition, as well as allowing for more difficult computations like HC dew point and speed of sound. The chromatograph is designed to operate effectively outdoors within a temperature range of 0 to 131°F (–18 to 55°C) which can be broadened with the addition of the company’s cold-weather enclosure or a third party sun shade. It can be easily secured onto pipelines between 2 to 12-in. dia. or by means of an optional pole-mount configuration. Two remote serial digital communications ports, one local port (USB Client) and one Ethernet port, permit specified users access to the NGC 8209 either directly with a laptop or remotely via satellite, radio, mobile phone or phone modem. — ABB Inc., Bartlesville, Okla.
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A CO2, flammable-gas sensor to substitute for catalytic pellistors
Designed for fixed-point use, Xgard IR offers a low-cost solution for flammable-gas and carbon-dioxide detection, reports the firm, because it is immune to degradation by high gas concentrations and other factors damaging to catalytic-pellistor systems. The infrared (IR) sensors are further distinguished from pellistors in that they will register flammable-gas concentrations against inert backgrounds and fail to safety in the event of malfunction. Replacement time is reduced by the device’s wall-mounting option, and plug-in design. The manufacturer offers two casing options for the Xgard IR: a polyester-coated aluminium or a more corrosion-resistant 316 stainless-steel enclosure. Accessories for wet or otherwise hazardous conditions are also offered — as well as extensions for remote sampling. The device has an approximate 5-year life expectancy; is Exd flameproof rated; and has been approved by ATEX and IECEx for hazardous applications. — Crowcon Detection Instruments, Erlanger, Ky.
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Detect moisture at parts-per-trillion resolution with this analyzer
Based on the Beer-Lambert law, mini-cavity ring-down spectroscopy (CRDS) analyzers are known both for their highly sensitive gas analysis and prohibitive expense. The HALO+ is a CRDS analyzer for detecting moisture in process gases that the manufacturer boasts offers measurements as low as 400 ppt — with 200 ppt sensitivity — "in a very compact and economical package." Costly and frequent calibration is unnecessary due to the lack of required consumables and reliance on the Beer-Lambert law. The analyzer operates at an ambient temperature range of 10 to 40°C and can receive samples at temperatures up to 60°C. It accepts inlet pressures between 10 – 125 psig at flow rates of up to 1,800 Ncm 3 /min, though the latter varies based on analyte-gas characteristics. Users can access the collected data via a 5.6-in. LCD touch screen, 10BaseT Ethernet or RS-232 compliant connections. — Tiger Optics, Warrington, Pa.
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Industrial Scientific
A color display makes this monitor safe in all lighting situations
According to the manufacturer, the MX6 iBrid is the first portable gas monitor to feature a full-color LCD screen which they say makes the device practical in both well- and poorly-lit situations. Capable of detecting one to six gases simultaneously, the MX6 monitoring system is comprised of a photo-ionization detector (PID), 25 field-replaceable sensor options and an integrated sampling pump. The device can monitor oxygen, combustible gases, volatile-organic compounds and odorless toxic hazards. Warnings are delivered with a loud, 95 dB alarm, which are then archived for evaluative purposes back to the past 15 alarm events. The MX6’s internal hardware can also data-log and store readings for up to six gases, taken at one-minute intervals over a minimum of one year. Firmware includes STEL and TWA readings, on-board graphing and eight available pre-programmed languages for its LCD screen. — Industrial Scientific Corp., Pittsburgh, Pa.
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New radiometric imagers boast higher resolutions
Two radiometric thermal imagers are being offered for handheld, high-resolution applications: the 3.75 lb, M7640 IR camera with a 640 x 480 resolution un-cooled focal plane array microbolometer; and the 2.87 lb, M7816 IR camera with a resolution of 160 x 120. Ergonomically designed, according to the firm, the smaller M7816 is suitable for "one-handed, point-and-shoot" applications and updates at twice as many frames per second as the 30 Hz M7640. Both IR camera’s have a temperature detection range of –40 to 500°C (the slightly heavier, two-handed M7640 also has an optional range of –40 to 2,000°C). Each device offers real-time, temperature and emissivity image recordings at a focus range of 30 cm to infinity for a variety of output options. The M7640 outputs to RS-232/C; IEEE 1394 (Firewire) Interface for remote operation; and S-video or NTSC/PAL composite-video-signal output for remote viewing. The M7816 includes RCA adapter and S-video image outputs and can transfer images and image data to systems operating Windows XP or higher. — Mikron Infrared, a property of LumaSense Technologies, Inc., Oakland, N.J.
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A spectroscopic process analyzer that can be rack-mounted
The OMA-406 Process Analyzer — designed to fit a standard 19 in. rack — is a new UV-VIS diode array process spectrometer functionally identical to the wall-mounted OMA-300. Control of the device is accessed by way of an embedded Windows XP industrial computer with a touch screen user interface RS-232 and Modbus (TCP/IP, Ethernet, serial) output options. The signal outputs spans 4 – 20 mA. According to the firm, the OMA-406 can obtain a passing stream for analysis through a variety of available flow cells ranging in path length from 1 to 1,000 mm. The given stream’s concentration characteristics are then continuously measured by a 1,024-element diode array, in a wavelength range of 190 to 800 nm with a resolution of 1 nm. Typical impurities for monitoring include chlorine, metal ions and sulfur-based components such as H 2 S and SO 2. — Applied Analytics, Inc., Maynard, Md.
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A fire and gas system that is internationally certified
The globally recognized certification agencies TÜV Nord and exida have certified this firm’s fire and gas detection system for industrial applications up to safety integrity level 2 (SIL-2). The system consists of Det-Tronics X3301 multi-spectrum (IR) detector and PIRECL Eclipse (IR) combustible gas detector, used in conjunction with the Eagle Quantum Premier (EQP) controller and Enhanced Discrete I/O (EDIO) module. The SIL-2 certification also means that the system meets both the needs of a safety instrumented system and is Factory Mutual (FM) approved to NFPA 72. — Detector Electronics Corp. (Det-Tronics), Minneapolis, Minn.
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Detect CH 3 Br and CH 3 I at ppm levels with this monitor
Typically monitored at lower explosive levels, methyl bromide and methyl iodide gases can now be regulated within threshold-limit value (TLV) concentrations using the Air Check Advantage Monitoring System. Designed for Class I, Div. 1, Group B, C, and D hazardous areas, the system is capable of detecting gases within a range of 0 to 50 ppm. The system’s high resolution stems from the use of a "long life" pyrolyzer which decomposes CH 3 Br, and CH 3 I into gases more easily and selectively detected by an electrochemical sensor. According to the manufacturer, this technique eliminates interferences from other HCs which may be present. Operating on 24 V d.c. power, the unit contains a local readout and a 4 – 20 mA analog signal output which allows it to be located up to 3,200 ft from a centralized controller or PLC. The firm estimates an approximate $75/yr in maintenance. It is also available with built-in, user selectable dual alarm relays and local alarm indicators. — PureAire Monitoring Systems, Inc., Lake Zurich, Ill.
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Applied Analytics
This device calibrates gas chromatography and other monitors
The Model 150 Dynacalibrator calibration-gas generator is designed to ensure precise (ppm to ppb) concentrations of chemical compounds within a gas stream. The constant-temperature device is intended as a reference for gas-chromatography units and other instruments that measure gas concentrations. The "light weight" (4.8 kg) Model 150 is housed in a passivated, Inertium-coated, stainless-steel permeation chamber that is 24 cm (L) by 2.2 cm (I.D.). A digital temperature controller regulates the chamber temperature to within ±0.01°C of a given set point. As reported by the firm, the broad range of temperature settings — 5°C above ambient to 110°C — allows users to generate a range of volumetric concentrations for compounds with either high or low vapor pressures. — VICI Metronics, Inc., Poulsbo, Wash.
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Matthew Phelan