ML20217J737
| ML20217J737 | |
| Person / Time | |
|---|---|
| Issue date: | 08/01/1997 |
| From: | Steven Baggett, Michele Burgess NRC |
| To: | |
| Shared Package | |
| ML20217J709 | List: |
| References | |
| SSD, NUDOCS 9708150027 | |
| Download: ML20217J737 (4) | |
Text
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' REGISTRY OF' RAD'IOACTIVE' SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE
-(AMENDED IN ITS ENTIRETY)-
NO.t NR-0206-D-101-E-DATE: August 1, 1997 PAGE 1 OF 2 -
i i
. DEVICE TYPE:
Smoke: Detector MODEL:
DS260 MANUFACTURER / DISTRIBUTOR:
Detection Systems, Inc.
130 Perinton Parkway Fairport, NY 14450
^ SEALED SOURCE MODEL DESIGNATION:
NRD A-001 ISOTOPE:
MAXIMUM ACTIVITY:
Americium-241 1.0 microcurie (37-kBq)
T.FAK TEST FREOUENCY Not required
. PRINCIPAL USE:
(P). Ion Generator, ~ Smoke Detectors a
e CUSTOM DEVICE:
YES--.
X NO N
i 9708150027 970008 PDR RC SSD PDR
REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES i.
SAFETY EVALUATION OF DEVICE (AMENDED IN ITS ENTIRETY)
NO.:.NR-0206-D-101 E
. GIE1 August 1, 1997~
PAGE 2 OF 2 DEVICE TYPE:
Smoke Detector DESCRIPTION 1 The model DS260 smoke detector contains a single-sided ion chamber.
The ion chamber incorporates the circuit board.
The ion chamber / circuit board is mounted in a plastic outer cover with a maximum opening of approximately 0.18" (4. 57 mm).
There
-is a metal insect screen mounted inside the top cover that covers the top electrode.
The outer cover is approximately 4" (10.16 cm) in diameter and 1,5" (3. 81 cm) in height.
The detector will be labeled with the the words "CONTAINS RADIOACTIVE MATERI AL",
trefoil symbol, isotope, activity, and name and NRC license number of the distributor.
This device may be distributed under different marketing numbers corresponding to difference covers and electronics.
-The model DS260 smoke detector was previously approved with a different cover and source holder design.
Detection Systems states that the original model was never produced and distributed.
REFERENCES:
The following supporting documents for the Model DS260 smoke detector are hereby incorporated by reference and are made a part of this registry document.
- Detection Systems application dated February 12, 1993, with enclosures thereto.
- Detection Systems letters and facsimiles dated January 31, 1997, April 28,-1997, November 8, 1996, May 29, 1996, May 7, 1996, April 23, 1996, December 14, 1995, August 24, 1993, and July 8, 1993, with enclosures thereto.
ISSUING AGENCY:
U.S. Nuclear Regulatory Commission Date: August 1.
1997 Reviewer:
0 2.# - e / - /
Michele L. Burgess /
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- 1 Date
- August
- 1. 19L. Concurrence:
i-Steven d. Baggett
2 W,014155369- -1363 P.01 Og Detection Systems, Inc.
O 130 Perinton Parkway, Fairport NY 14450 U SA ToTAt No. OF PAGE5 TNCLUDING C OVER
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DETECTION SYSTEMS, INC, 130 PER!NTON PARKWAY 0
Ptt 716 2214060 FAJRPORT, NEWYORK 14450 USA Tou Free: 800 289 4090 FAX:
716-221 9180 April 28,1997 Ms. Michele L. Burgess, Mechanical Engineer Scaled Source Safety Section Nuclear Regulatory Commission CommercialSection-Mail Stop T8 F5 Washmgton, DC 20555 Re: A-A-* (#2) to License 3123818-01B
Dear Ms. Burgess:
Last Thursday durring a telephone conversation, Betty Green mentioned to you that a new inner screen has been added to both laidssically Sqfe SmoAs Desactors, ISSD#1 and ISSD#2. 7be addition of this screen as shown in the figures below improves the product performance and does not change ao esa to the Americium 24I source. If anything, it acts as a slight additional hwiia. cat. The short cylindencal screen is attached to the outer electrode by resistance welding.
AU protection devices, described in the appliestion, have not lun changed.
01.lTCR P PCTRODE INNER SCREEN 3
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DErtCT9t 3A3C Sincerely, v
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Richard McMaster Project Engineer TOTFL P.02