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Biotech / Medical : New Brunswick Scientific Co., Inc. (NBSC) -- Ignore unavailable to you. Want to Upgrade?

To: scaram(o)uche who wrote (302)	10/25/2001 11:52:49 AM
From: richardred	Respond to of 724

With that said. I'll be the early bird that gets the worm, but hopefully not getting indigestion from it.

To: scaram(o)uche who wrote (302)	10/28/2001 8:50:29 AM
From: scaram(o)uche	Read Replies (2) \| Respond to of 724

Slit-to-Agar Biological Air Sampler New Brunswick Scientific has re-designed its Slit-To-Agar Air Samplers for improved efficiency in testing for microbial contamination in the air. Like the original design, which after 30 years has become a lab standard, the new STA-203 and STA-204 Air Samplers pull air through a slit barrel onto a rotating 150 mm agar plate for subsequent incubation and colony counting. Microprocessor controls and an automated thermal mass flow controller enable flow rate and sampling time to be more quickly and precisely entered on a membrane keypad. Flow volume is automatically calculated and displayed on a large, easy-to-read LED indicator. The sampling time, or time it takes for one full rotation of the agar collecting plate, has been extended to permit sample times from 2 to 99.9 minutes. With adjustable flow rates and longer sampling times enabled, these instruments can now sample large volumes in environments that have limited contamination such as clean rooms; as well as sample smaller volumes in areas that have larger amounts of viable particles. Models are available with or without a built-in vacuum. UNIQUE FEATURES & BENEFITS Sample volume is accurately calculated by measuring and controlling air flow using a thermal mass flow controller. (Competitive units merely assume a constant flow rate or use a volume flow meter, which are both adversely affected by temperature and pressure.) Flow rate validation enabled via output signal for data recording. Audible & visual alarms signal power interrupt, variation in flow rate, or end of sample run, with output signals for remote alarming. Capable of identifying when a contamination event occurs.