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Beckman LSC source leakage
Received the following this morning. If you have a Beckman LSC you may
wish to contact them directly.
May 27, 2003
IMPORTANT PRODUCT INFORMATION
All Beckman Coulter bench top Liquid Scintillation Counters
Dear Beckman Coulter Liquid Scintillation User:
Our records indicate that you have a Beckman Coulter bench-top liquid
scintillation (LS) counter in your laboratory. Beckman Coulter has
learned that an isolated number of its bench-top LS instruments may
develop a leak in the internal 30 microcurie (1110 kBq)
Cs-137 scaled source. The affected instruments are those manufactured
before January l994. Indications that you may have a damaged source
are:
an unexplained high background reading, or
an inability to calibrate the instrument.
We routinely inspect the internal sealed source on every preventive
maintenance visit made under a service contract. We also recommend that
all LS instrument owners perform periodic background checks for possible
contamination, as described in the liquid scintillation system operating
manuals. The process for these checks is as follows:
Set up the instrument to count for five minutes in a wide-open
window.
Count the sealed Background Standard.
Counts should typically be less than 60 CPM.
If your instrument shows a high background count or cannot be
calibrated, please contact Beckman Coulter to schedule an inspection.
If, upon inspection by our Field Service personnel, it is determined
that the internal sealed source is leaking and must be replaced, there
will be no charge for the service call. To arrange an inspection, or to
obtain answers to any questions you may have, please call your local
service office in the United States at 800-***-****, in Canada at
800-***-****, or contact us via our website at www.beckmancotilter.com.
Thank you for your continued support of Beckman Coulter products.
Berend Houwen, M.D., Ph.D.
Corporate Medical Director
James Reese
Sr. Health Physicist
ERS Solutions, Inc.
(916) 689-2680 office
(916) 689-6270 fax
(916) 402-3509 mobile
Visit our website: www.erssolutionsinc.com
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