As is our custom, those that benefit from the collective wisdom contribute back with a summary of the wealth of replies.
Therefore here is my due and thanks:
PureAire
Users report:
- various configurations from in-room, to withdrawing samples to sensor in adjacent room setups
Usage-used in spectrometer rooms and filling stations
10yr life span of sensor - multiple users in 5yr range, no problems, no recalibrations,
Reliability - consensus was very good
Features - display % level a bonus allowing response before problem arises (especially fill stations)
Sensor replacement cost less than competing units
Relay contacts available for external monitors and remote/additional alarms
-price is about $1700 USD
Other units
Competing units are comparably costly with sensors that last 18-24 months (350-600 USD per sensor) but requiring recalibrations during that time and cause false alarms.
Oxigraf O2iM
-no consumables, no maintenance, put brochure says 10yr laser sensor.
- uses IR lasers at 4 pts in room to determine O2 levels and constantly recalibrates. Users said more expensive but more reliable with no “sensor” needing replacement. Got a general pricing quote ~$5700 which is triple +, so yes pricy.
PKsafety personal monitor - 2 yr sensor and then you have to decide replace unit or sensor (comparable cost)
Toxalert OXY2 - false alerts, some problems listed.
Thermal Gas Systems IR sensors - some alarm issues and re-calibration needed
RKI - $160 sensor with usual 1-2 yr replacement, with gradual decline in reading needing recalibration
Thank you to all (no implied order):
-apologies in advance for any spelling/typos etc.
Gary Strahan
Kristopher Kolonko
Monika Ivancic
David Vader Velde
Robert Harker
Jerry Hirschinger
Peter Thompson
Charles Fry
Bob Berno
and anyone else I may have missed mentioning
Specific contributions have been condensed and re-worded to protect the innocent
---------------------------------------------------------------------------------
Ryan T. McKay, Ph.D.
NMR Facility Supervisor
Room E3-17A Email: ryan.mckay_at_ualberta.ca <mailto:ryan_at_nanuc.ca>
Department of Chemistry Phone: 780.492.9950
University of Alberta Cell: 780.920.8871
Edmonton, Alberta
Canada T6G 2G2
Website: uab.ca/nmr
Received on Tue May 21 2019 - 07:43:25 MST