Protecting People and the EnvironmentUNITED STATES NUCLEAR REGULATORY COMMISSION
ACCESSION #: 9608090214
FAX Message
TSI
TSI Incorporated
Environmental Measurements & Controls Division 1 800 777 8356
500 Cardigan Road Tel: 612 490 2711
Shoreview, MN 55126-3996 Fax 612 490 2874
Date: August 7, 1996
Organization: Nuclear Regulatory Commission
Attn: Operations Center
FAX: 301-816-5151
Tel: 301-816-5100
From: Richard Remiarz
Re: 10 CFR Ch. (1-1-95 Edition)
Section 21.21 (a)(1)
Pages: 4
The attached documents are being faxed to the NRC Operations Center to
meet the notification requirements of the above-referenced section. If
you have any questions, please feel free to contact TSI Incorporated at
800-876-9874.
Environmental Measurements 612 490 2888
and Controls Division Fax: 612 490 2874
500 Cardigan Road
P.O. Box 64394
St. Paul, MN 55164
U.S.A.
TSI
YOUR IMMEDIATE ATTENTION REQUESTED
Potential Problem Affecting Some Air Velocity Test Instruments
August 7, 1996
Dear Quality Assurance Manager:
This letter is being mailed to all NUPIC members. Acting in accordance
with the requirements of MIL Standard 45662A, we are sending the attached
letter to all identified owners of the following instruments within the
next 30 days:
VELOCICALC [Registered Trademark] Models 8355, 8357,
8360, 8382, 8383, 8388
VELOCICHECK [Registered Trademark] Models 8330, 8340
ACCUBALANCE [Registered Trademark] Model 8370
DP-CALC [Registered Trademark] Models 8702, 8704
If you have any questions, please contact me at 800-777-8356.
Sincerely,
Richard J. Remiarz, Business Unit Manager
Industrial Test Instruments Group
Environmental Measurements & Controls Division
Environmental Measurements 612 490 2888
and Controls Division Fax: 612 490 2874
500 Cardigan Road
P. O. Box 64394
St. Paul, MN 55164
U.S.A.
TSI
August 7, 1996
Attn: Quality Assurance Manager
Calibration Laboratory Manager
Dear Valued Customer,
We have recently discovered a problem that can potentially affect the
performance of some instruments under certain environmental conditions.
Printed circuit board assemblies manufactured by one of our vendors have
been found to be contaminated with a microscopic coating of residue. At
times the residue can act as a conductor. causing current leakages that
can affect the performance of the instrument. The effect of the current
leakages can vary from extraneous segments appearing on the display to
drifting zero levels or errors in readings. The problems Primarily occur
when the printed circuit board is exposed to elevated temperature and
humidity levels.
To resolve any problems caused by the contamination, TSI is recalling
instruments that are potentially affected. Instruments returned to TSI
will be disassembled, printed board assemblies will be cleaned, and the
instruments reassembled and recalibrated. Units will be returned with a
new calibration and calibration certificate. As found data will not be
taken unless specifically requested.
We have determined that the following instruments potentially have this
problem:
VELOCICALC Models 8355, 8357, 8360, 8382, 8383, and 8388 with serial
numbers beginning with the digits 604 through 606 or 9604 through
9606
VELOCICHECK Models 8330, 8340 with serial numbers beginning with the
digits 9601 through 9606
ACCUBALANCE Model 8370 with serial numbers beginning with the digits
601 through 606
DP-CALC Models 8702, 8704 with serial numbers beginning with the
digits 9604 through 9606
To arrange for returning the instrument to TSI, please call 800-777-8356
or (001) 612-490-2711 or fax 612-490-2874 and TSI personnel will provide
a Returned Material Authorization (RMA) number and instructions on where
and how to ship the instrument.
We apologize for any inconvenience this potential problem may cause. If
you have any questions, please call TSI at 800-777-8356.
Sincerely,
Richard R. Remiarz, Business Unit Manager
Industrial Test Instruments Group
Environmental Measurements and Controls Division
nupicltr.doc
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