[labnetwork] Occupancy Sensors in Cleanroom

[Carsen Kline]

Hi Matt,

At SNF we have occupancy sensors in our litho areas, satellite labs, and offices. We don't get false triggers of lights due to vibration or noise, just occasional annoyances. Yesterday I overheard a student giving an outside tour of our lab trying to describe the tools in the dark to his visitors. Noah's suggestion of a bypass option during business hours is a good one. A few of our lamps are always on and tied into emergency backup power.

Best wishes for your new lab.

Carsen

________________________________
From: labnetwork-bounces at mtl.mit.edu <labnetwork-bounces at mtl.mit.edu> on behalf of Noah Clay <nclay at upenn.edu>
Sent: Thursday, May 5, 2016 1:11 PM
To: Matt Moneck
Cc: labnetwork at mtl.mit.edu
Subject: Re: [labnetwork] Occupancy Sensors in Cleanroom

Matt,

     I've seen these used for lighting in the cleanroom environment but typically one would bypass the occupancy sensors Monday to Friday during normal business hours.

     I've never experienced any issues.

Regards,

Noah

Noah Clay
Quattrone Nanofabrication Facility
University of Pennsylvania
Philadelphia, PA

Sent from my iPhone

On May 5, 2016, at 15:28, Matt Moneck <mmoneck at andrew.cmu.edu<mailto:mmoneck at andrew.cmu.edu>> wrote:


Hi All,



Our university is in the process of constructing a new 8500 sqft cleanroom.  It has been proposed that 30min occupancy sensors are to be used in the cleanroom bays and chases (one at each end of each bay and chase).  Personally, I have a lot of reservations about using such sensors given safety concerns created by potential blind spots, especially when staff are working in tight spots around various processing tools.  In addition, I have concerns about sensitivity given the noise and vibration in many areas of the lab.  Does anyone have experience (good or bad) with such sensors in a cleanroom environment?



Best Regards,

Matt



--
Matthew T. Moneck, Ph.D.
Executive Manager, Carnegie Mellon Nanofabrication Facility
Electrical and Computer Engineering | Carnegie Mellon University
5000 Forbes Ave., Pittsburgh, PA 15213-3890
T: 412.268.5430
F: 412.268.3497
www.ece.cmu.edu<http://www.ece.cmu.edu>
nanofab.ece.cmu.edu<http://nanofab.ece.cmu.edu>



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