Delivering unobstructed, inert fluid paths with high flow rates and low dead volumes, Bio-Chem Fluidics offers the RV-Series of Electric Rotary Valves. The series features three different models for easy integration into OEM systems.

Electric Rotary Valves RV-Series Easily Integrate into OEM Systems

Photo: http://halmapr.com/bcf/BIO RV Series EMAIL.jpg (1 MB)

Designed for applications such as sample collection, loop injection or flow path selection, the series of valves provides a lower pressure drop than conventional solenoid mixing valves. Each model’s ¼”- 28 UNF fluid port connections and flow configurations were designed to match the industry standard most commonly found in existing systems. All valves use a unique PTFE fluid path for maximum compatibility with aggressive solvents.

The RV-Series includes three different models to match customers’ needs. The most basic model, the RV-E, includes only the valve head assembly for use with a system’s pre-existing stepper motors. The RV-SN includes its own two-phase, hybrid stepper motor, and the RV-SC features the same stepper motor with an intelligent motor controller and driver.

Comments (0) »

Tetra 3 used to detect hydrogen sulphide gas in volcano’s crater

A BBC film crew filming sulphur miners in the crater of an active volcano in Indonesia used a Crowcon Tetra 3 portable gas detector to warn them of dangerous levels of hydrogen sulphide (H2S). The crew were filming as part of the BBC’s landmark ‘Human Planet’ series which explores mankind’s relationship with nature in the world today.

During filming the crew were engulfed in a cloud of H2S gas and had to quickly don gas masks (no such safety measures are used by the miners). They measured the gas concentration with the Tetra 3, which immediately went into alarm mode and showed a concentration of194 ppm – almost 40 times the safe breathing level. The corrosive gas quickly ate into the cameras, all of which promptly broke down.

Film clip of film crew measuring H2S gas with Crowcon's Tetra 3 portable gas detector

Clip of film crew measuring H2S gas with the Tetra 3

Human Planet crews filmed in around 80 locations worldwide, using HD cameras to film from the air, from the ground and underwater. The result, according to the BBC website, is a “cinematic experience” created by world-class natural history and documentary camera crews and programme makers.

Crowcon’s lightweight, portable Tetra 3 combines extremely rugged design with small size and simple operation. Designed for use in the most demanding environments, it has simple, single button operation, even with a gloved hand. Monitoring oxygen, toxic and flammable gases, the unit has a top mounted, backlit display showing all gas readings, diagnostics and battery life.

If a hazard is detected, the Tetra 3 gives rapid and effective warning with a powerful 95 dBA audible alarm, an extremely bright red/blue LED visual warning, and by vibrating.

Contact details for Crowcon’s distributor in India:
Kishore Degwekar, Managing Director
Detection Instruments Pvt. Ltd.
Plot No. El-36, Electronics Zone
TTC Industria Area, MIDCl – Mahape
Navi Mumbai 400 710
India
Tel: 022 2761 7663 / 64 / 65 / 66, Fax: 022 2761 2103
E-mail: general@detection-india.com / sales@detection-india.com
Website: www.detection-india.com

Comments (0) »

To grow its exclusive PixelTec™ patterned optical coating technology, Ocean Thin Films has expanded its Colorado, USA facility. The pioneer in lithographic patterning of optical coatings, with more than 2 million precision patterned optics delivered, Ocean Thin Films continues to advance its patented process by adding a new clean room and specialty equipment.

Ocean Thin Film’s Colorado, USA facility has been upgraded to deliver a wider range of custom patterned coatings

Photo:  http://halmapr.com/OTF/Pixeltec.jpg (675 KB)
(Image caption: Ocean Thin Film’s Colorado, USA facility has been upgraded to deliver a wider range of custom patterned coatings)

PixelTec optical coatings are increasingly used for purpose-specific performance in a multitude of medical, defense, and industrial applications, enabling more compact, robust, and cost-effective devices. The Colorado expansion includes another dedicated, class 1000 semiconductor-grade clean room outfitted with advanced patterning and alignment equipment, and class 100 work areas.  The ITAR Registered and ISO 9001:2008 certified facility is now delivering a wider range of complex custom patterned coatings.

PixelTec technology enables micron-scale patterning of multiple thin film optical coatings on a single substrate including:
•    Precision patterning of intricate features, shapes, and sizes with sub-pixel alignment accuracy.
•    Dielectric, metallic, and transparent conductive (ITO/IMITO) coatings engineered for custom spectral properties.
•    Multi-filter arrays on monolithic substrates, scalable to high volume production.

“Multispectral imaging and sensing is an exciting example where clients are leveraging the benefits of PixelTec patterned dichroic coatings – configuring real-time custom imagers and sensors for everything from enhanced surveillance to non-invasive detection of cancer and disease,” explains Randel Mercer, Ocean Thin Film’s Vice President of Business Development.

“Our innovative PixelTec patterning expertise also supports precision reticles, variable filters, EMI/RFI shielding, and other custom optics. This expansion is the latest in our continued investment to ensure customers receive the best-in-class patterning capability coupled with high quality optical coatings.”

Company contact in India:
Bhushan Dhakras
Halma Trading and Services India Pvt. Ltd.
201 Hyde Park, Saki Vihar Road
Powai, Mumbai, Maharashtra, 400 072
Tel: 022 6708 0400, Fax: 022 6708 0415
Mobile: 99300 21866
E-mail: bhushan.dhakras@oceanthinfilms.com
Website: www.oceanthinfilms.com

Comments (0) »

For vacuum coating and sputtering processes, Alicat Scientific’s MCV mass flow controller provides the tight shut-off parameters required to maintain product integrity. Its integrated pneumatic shut-off valve is normally closed, affording positive shut-off of 1 x 10-9 atm sccm/sec Helium max.

Alicat Scientific MCV Mass Flow Controller for Vacuum Industry Features Integrated Pneumatic Shut-Off Valve

Photo: http://halmapr.com/alicat/MCVRelease.jpg (825 KB)

The Alicat MCV accurately controls gas flow rates as low as 0.5 sccm or as high as 20 slpm with response times of 50 to 100 milliseconds.  Fast response times can greatly improve vacuum coating end products and help eliminate target poisoning. Pre-programmed with calibrations for 30 gases, the MCV displays mass flow, volumetric flow, absolute pressure and temperature. The unit may be programmed directly through the instrument’s keypad or remotely via RS-232 (RS-485 also available).

The MCV uses the same patented laminar flow differential pressure (DP) technology as all Alicat Scientific flow instruments, is supplied with NIST traceable certification and carries the CE mark.

For more information please contact Alicat’s Indian distributor:
Sathish Kumar
Aeronics eMaROh
#782, 7th Cross
Muthyalanagar, MES Road
Bengaluru, Karnataka, 560 054
Tel: +91 (0)80 23459590
E-mail: sathish@aeronics.in
Website: www.aeronics.in

Comments (0) »

Accudynamics’ precision machined base plates provide a stable foundation for medical diagnostic equipment that contributes to the lifetime of the equipment and the accuracy of its test results.

Accudynamics Medical Diagnostic Machine Base Plates Contribute to Accurate Results

Photo: http://halmapr.com/accudynamics/AD Baseplates EMAIL.jpg (1.1 MB)

Inside medical diagnostic machines, samples of liquid or tissue are mixed, sorted, and analyzed with great speed and precision. Accudynamics base plates eliminate flexure or unintended movement, which can cause damage to the machine or produce inaccurate test results that could lead to the wrong medical decision being made.

Accudynamics uses dedicated machinery to manufacture its base plates at for the customer in a cost-effective manner. The products are machined using a Kitamura® bridge manufacturing center with spindle speeds of 22,000 RPM, which allow it to produce large, complex aluminum base plates while holding very tight tolerances. Finished products are checked for accuracy with a Brown & Sharp® coordinate measuring machine utilizing PC-DIMIS® software for direct model comparison, to verify that they will meet customers’ requirements.

About Accudynamics
Accudynamics (www.accudynamics.com) has over 25 years experience developing and manufacturing precision machined components, integrated electromechanical assemblies, and subassemblies which are used by medical and diagnostic equipment manufacturers across the world.

Comments (0) »

Over US$10,000 in prizes for winning images

Ocean Optics, the industry’s leading supplier of miniature fiber optic spectrometers, has opened the submissions period for its second annual Photo and Video Challenge (www.oceanphotochallenge.com) for users of the company’s equipment and systems.

Ocean Optics Announces Photo Video Challenge 2011

Photo: http://halmapr.com/oo/PhotoContest.jpg (920 KB)

Cash prizes will be awarded for best overall photograph (US$2,000) and best overall video (US$3,500). Second place prizes of US$1,000 in both categories will be given, as well as three US$500 runner-up prizes in each category.

The challenge is open to all owners of Ocean Optics spectrometers and systems – customers, distributors and business partners are all eligible. The submission period runs through November 15, 2011. Winning entries, chosen for their innovation, entertainment and educational value, will be announced December 1, 2011.

The company hopes to encourage entrants to show off how they use Ocean Optics spectrometers and systems to make the world a better place through optical sensing.  Visit www.oceanphotochallenge.com to see last year’s winning entries and apply for the 2011 Challenge.

Comments (0) »