Dear Colleagues,
May I ask for your advice on Oxygen sensors:
In our NMR room we have two oxygen sensors at different heights, as
recommended by the vendors. We already had one sensor fail twice each
time after only one year. Now the company tells us that we have to
expect to exchange these sensors every 1.5 - 2 years (cost about $200,
in addition to the calibration costs). I have not heard of such a short
life span before. Therefore my questions to you, who have oxygen
sensors, are:
- How long do your sensors work before they fail?
- Which brand do you use (thank you in advance for digging this
information out for me, if you can).
- Is it powered by a battery or from the main power supply?
- Who supervises it, you or the facility management?
Thanks for your advice. I will post a summary.
Happy resonating
Ulli
--
Dr. Ulrike Werner-Zwanziger
Adjunct Professor
Senior NMR Spectroscopist
Department of Chemistry, IRM, ARMRC
Dalhousie University
Halifax, NS, Canada, B3H 4J3
Phone: (902) 494 1948
FAX: (902) 494-1310
e-mail: Ulli.Zwanziger_at_Dal.ca
Received on Tue Aug 30 2005 - 09:00:50 MST