ML20127P110

Part 21 Rept Re Calibr,Wind Tunnel for Model 8500 Thermo Anemometer Out of Spec.No New Units Sold to Licensees within Past 12 Months.Range of Possible Calibr Errors Out of Spec Is 3% to 20%.Full Rept Will Be Submitted

ML20127P110
Person / Time
Site:	Trojan File:Portland General Electric icon.png
Issue date:	11/25/1992
From:	Grover S ALNOR INSTRUMENT CO.
To:	Joseph Sebrosky NRC
References
REF-PT21-92 NUDOCS 9302010185
Download: ML20127P110 (4)

Text

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November 25, 1992 U.S. Nuclear nogulatory commincion Headquartors office Washington, D.C.

Attn Mr. Joo Sobrosky Dear Mr. Sobrosky The purpoun o* thin lottar is " Notification of a Potential Dofoct" as contemplated by 10 CFR 21.

We are uncuro after an initial inventigation if a part 21 notice is applicable and roacrve our right to retract said " Notification".

A brief doncription of the situation ic as followar 1.

Alnor Instrument Co.

is a manuf acturer of air flow measuring equipment.

Scvoral of our producta are sold to Nuclear Liconnees, and we havo boon put on notice that somo of those products are subject to 10 cFR 21, 2.

Wo discovered

today, November 25, 1992 that the calibration, vind tunnel, for our model 8500 Thermo Anomometer is out of spocification. (non attached brochuro) 3.

We have calibrated, to the best of our knowledge, 8 of those instruments for licensees in the past 12 months.

Recommended calibration intervalo are overy 12 months or less.

4.

We have not sold any now units to any licennoos in tho l

past 12 months.

t 5.

To our knowledge none of the calibrationo performed waro subject to 10 CFR part 21.

However, a sister instrument which performs substantially the same functions, the AP 6000.Velomotor, i

is quito commonly cold and calibrated for licenseon which havo l

l informed un that the instrument is used as a "baulo component" or l

1s for other reasona subject to part 21 roquirements.

6..

The range of possible calibration

errors, out of specification, in 3 to 20%.

This is according to our initial l

l investigation and auhject to furthor invoutigation.

and verification.

l n1003G n

i 9302010185 921125 PDR ADOCK 05000344 1

S PDR ALNOR INSTRlMENT COMPANY Telephnno (70s) 877-3500 7555 North under AWnue Telotax(700) 877 3539

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l Slekje, tinSs 00077 (p

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SDT BY 11-25-D2 i 10:01 i AMOR INST CO.* NRC OPDIATIONS CTR. # 3/ 5 FilDR1 7

The list of possible licenseos affect are:

Westinghouco Electric, W.

Mifflin, PA Consumern Power, Jackson MI Niagara Mohawk, Lycoming, NY Dabcock and Wilcox, Naval Nuclear Fuel Div., Lynchburg, VA Portland Gas and Electric, Trojan Plant 8.

All licenseen will be contacted by phono on Monday the 30th of Hovember, followed by written instructions to return the inntruments for to calibration.

9.

A full report will be submitted in a tinnly mannor as prescribed by the regulations.

It requented, further details will be providod on Monday, November 30, 1992 or an our investigation reveals further need to report.

Respectfully submitted,

/(.

Stoplen F. Grovar President i

ALNOR INSTRUMENT COMPANY Tdeviano(708) 677Go0 7555 North undor henuo Telehr (708) e77 3539 Skokio. IGnois 60077 r9,,

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F* * ' "#

By:

11-25-02 i 10:04 i AISOR INST CO.* NRC Of1 RAT 10NS CIR. ;# 4/ 5 EBM3 A e5 Fact Sheet L

8500 i

ThermoAnemometer l

i i

Precision and Laboratory i

j convenience accuracy i

L for low-The 8500 providos

"'" hi h p'**i*"-

velocltY air 9

i lts laboratory accuracy

""4 i

measurement of +/-3% of indicated 4

i i

Ainor's Model 0500 wlocity, or 2 FPM,

'

• r a t, e..

l prwidos qu'ik corwon-(whichever is Orcater),

lent and highly accurato mckes the 8500 one of analog measurement of the most accurate thor.

b

~

low air velocity. The rnoanemometers you 0500 is r,irapto to uso can buy, Tho 8500 is

,r.,, ~

In applications such as wry sendtivo to ovon l

fume hoods, biological the slightest air mwo-safety cabinets, and ment. So it's perfect for laminor flow benchon.

Iow air velocity applica.

The 6500 providos

.tions from 10 F"M and roadings anVwhoro frorn prwkios extremely fact

"",,w 10 to 2,000 FPM in two responso.

rangen on a 6* scale.

oy emp'Y hoMino the probe fleading accuracy is la the suruivam, the esoo Self-contained assured tr/ the scale'n pandes occurrue sumatin95 The Model 8500 unti-parallax mirroring.

ThortnnAnornometer is completely self-contalticd, ll's housed in a carefully gasketed case and wolghs about 7 lbs. A separate caso is prwided for the stan.

dard probo, Tho 8500 is powerod by a self.

(

,0. v.*...*,,,7 contained battery and Y,,,,t inw curtont drain ensures a life of 80 operating

" * ' " * * ~ -

W aume -

hours.

. 18He@Ase4eoadna f

a

'N Tha compfeiedy telt. contained orsairg Moo it n<.no t he+rtre Anemomastar with f.tandard 6* probc_

?.7

~

90*'*

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g. c s-

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l

SEhT BY:

11-25-D2 ;

10:00 ALNOR INST Co.* NRC OPDtATIONS CTR. i# 5/ 5 Re]H Specifications Accuracy:

+/-3% of indicated velocity, or 2 FPM (0.01 m/t,), whichwer is greater Range:

10 to 300 FPM and 100 to 2000 FP, D5 to 1.5 m/s and 0.5 to 10 m/s Instrument Power: Battery Battery Life:

80 hours9.259259e-4 days <br />0.0222 hours <br />1.322751e-4 weeks <br />3.044e-5 months <br /> minimum continuous use Probe Stre Standard 0" probe with 5' cable 12,* 18' and 24" probe lengths also wallable Temperature Operating 20 to 150*F (-7 to 65'C)

Orderinginformation Port Number:

e500 In FPM 634.290.100 8500 in m/s 634.291.100 includes Model 6500 Meter Certificate of factory calibration 6* probe with case Optional:

Cortificate of traceability with actual point data; must be ordered at same ilms as meter.

1 e.apetis samaea wen e meew IRegistered trademarks of the h h Compary Nnor terument company 7555 North I.hder Avenue cmyright. Anot Ir.atrumett Company,1901 Skokie linnois60077 radaIg.iglJgg,l P<tnted b USA 6/32 3M (700) 077 3500; FAX (708) 677-3539 i.7-s-p e

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