ML20009E223

From kanterella
Jump to navigation Jump to search
Advises That IE Circular 81-06, Potential Deficiency Affecting Certain Foxboro 10 to 50 Milliampere Transmitters, Was Sent to Listed Licensees
ML20009E223
Person / Time
Site: Beaver Valley, Millstone, Calvert Cliffs, Peach Bottom, Salem, Nine Mile Point, Indian Point, Oyster Creek, Hope Creek, Pilgrim, Susquehanna, Seabrook, Limerick, Vermont Yankee, Haddam Neck, Ginna, Sterling, Yankee Rowe, Maine Yankee, FitzPatrick, 05000363, 05000516, 05000517, Shoreham, Crane  Entergy icon.png
Issue date: 04/14/1981
From:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
NUDOCS 8107270256
Download: ML20009E223 (4)
v • d • e


Text

.

4}I4-lRI LIST OF HOLDERS OF NUCLEAR POWER REACTOR OPERATING LICENSES AND CONSTRUCTION PERMITS RECEIVING IE CIRCULAR NO. 81-06 Baltimore Gas and Electric Company Docket Nos. 50-317 ATTN: Mr. A. E. Lundvall, Jr.

50-318 Vice President, Supply P. O. Box 1475 Baltimore, Maryland 21203 Boston Edison Company M/C Nuclear Docket No. 50-293 ATTN: Mr. A. V. Morist Nuclear Operations Support Managee 800 Boylston Street Boston, Massachusetts 02199 Connecticut Yankee Atomic Power Company Docket No. 50-213 ATTN:

Mr. W. G. Counsil Vice President - Nuclear Engineering and Operations P. O. Box 270 Hartford, Connecticut 06101 Consolidated Edison Company of Docket Nos. 50-03 New York, Inc.

50-247 ATTN: Mr. John D. O'Toole Assistant Vice dresident - Nuclear Affairs and Quality Assurance 4 Irving Place New York, New York 10003 Duquesne Light Company Docket No. 50-334 ATTN:

Mr. C. N. Dunn Vice President Operations Division 435 Sixth Avenue Pittsburgh, Pennsylvania 15219 Jersey Central Power and Light Company Docket No. 50-219 ATTN:

Mr. Ivan R. Fir. frock, Jr.

Vice President Oyster Creek Nuclear Generating Station P. O. Box 388 i

Forked River, New Jersey 08731 i

i l

8107270256 810414

~

j PDR ADOCK 050000d3 0

l PDR

(

2 Maine Yankee Atomic Power Company Docket No. 50-309 ATTN: Mr. Robert H. Groce Senior Engineer-Licensing 1671 Worcester Road Framingham, Massachusetts 01701 Metropolitan Edison Company Docket No. 50-289 ATTN: Mr. H. D. Hukill Vice President and Director of TMI-1 P. O. Box 480 Middletown, Pennsylvania 17057 Metropolitan Edison Company Docket No. 50-320 ATTN: Mr. G. K. Hovey Vice President and Director of TMI-2 P. O. Box 480 Middletown, Pennsylvania 17057 Niagara Mohawk Power Corporation Docket No. 50-220 ATTN: Mr. T. E. Lempges Vice President Nuclear Generation 300 Erie Boulevard West Syracuse, New York 13202 Northeast Nuclear Energy Compary Docket Nos. 50-336 ATTN: Mr. W. G. Counsil 50-245 Senior Vice President - Nuclear 50-423 Engineering and Operations P. O. Box 270 Hartford, Connecticut 06101 Philadelphia Electric Company Docket Nos. 50-277 ATTN: Mr. S. L. Daltroff 50-278 Vice President Electric Production 2301 Market Street Philadelphia, Pennsylvania 19101 Power Authority of the State of New York Docket No. 50-286 Indian Point 3 Nuclear Power Plant ATTN: Mr. S. S. Zulla Resident Manager P. O. Box 215 Buchanan, New York 10511

3 Power Authority of the State of i:aw York Docket No. 50-333 James A. FitzPatrick Nuclear Power Plant ATTN: Mr. R. J. Pasternak Resident Manager P. O. Box 41 Lycoming, New York 13093 I

Public Service Electric and Gas Company Docket Nos. 50-272 ATTN: Mr. F. W. Schneider 50-311 Vice President - Production 80 Park Plaza Newark, New Jersey 07101 Rochester Gas and Electric Corporation Docket No. 50-244 ATTN: Mr. John E. Mater Vice President Electric and Steam Production 89 East Avenue Rochester, New York 14649 Vermont Yankee Nuclear Power Corporation Docket No. 50-271 ATTN:

Mr. Robert L. Smith Licensing Engineer 1671 Worcester Road Framingham, Massachusetts 01701 Yankee Atomic Electric Company Docket No. 50-29 ATTN: Mr. James A. Kay Senior Engineer-Licensing 1671 Worcester Road Framingham, Massachusetts 01/01 Duquesne Light Company Docket No. 50-412 ATTN: Mr. E. J. Woolever Vice President 435 Sixth Avenue Pittsburgh, Pennsylvania 15219 Jersey Central Power & Light Company Docket No. 50-363 ATTN:

Mr. I. R. Finfrock, Jr.

Vice President 260 Cherry Hill Road Parsippany, New Jersey 07054 Long Island Lighting Company Docket No. 50-322 ATTN: Mr. M. S. Pollock Vice President - Nuclear

^

175 East Old Country Road Hicksville, New York 11801

4 Long Island Lighting Company Docket Nos. 50-516 ATTN: Mr. Charles P. Davis 50-517 Senior Vice President 250 Old Country Road Mineola, New York 11501 Niagara Mohawk Power Corporation Docket No. 50-410 ATTN: Mr. Gerald K. Rhode Vice President System Project Management c/o Miss Catherine R. Seibert 300 Erie Boulevard, West Syracuse, NY 13202 Pennsylvania Power & Light Company Docket Nos. 50-387 ATTN: Mr. Norman W. Curtis 50-388 Vice President Engineering and Construction - Nuclear 2 North Ninth Street Allentown, Pennsylvania 18101 Philadelphia Electric Company Docket Nos. 50-352 ATTN: Mr. John S. Kemper 50-353 Vice President Engineering and Research 2301 Market Screet Philadelphia, Pennsylvania 19101 Public Service Electric & Gas Company Docket Nos. 50-354 ATTN: Mr. T. J. Martin 50-355 Vice President Engineering and Construction 80 Park Plaza - 17C Newark, New Jersey 07101 Public Service Company of New Hampshire Docket Nos. 50-443 ATTN: Mr. W. C. Tallman 50-444 Chairman and Chief Executive Officer 1000 Elm Street Manchester, New Hampshire 03105 Rochester Gas & Electric Corporation Docket No. 50-485 ATTN: Mr. J. E. Arthur Chief Engineer 89 East Avenue Rochester, New York 14549

  • /

q SSINS No.:

6820' Accessession No.

m 8011040288 IEC 81-06

/i ((J IA UNITED STATES NUCLEAR REGULATORY COMMISSION M/ Y 04 ;OON ;8 2

')

0FFICE OF INSPECTION AND ENFORCEMENT 4 8. %

Ns,5 car J.

WASHINGTON, D.C.

20555 s

9 \\ '[

April 14, 1981 t

IE Circular 81-06:

POTENTIAL DEFICIENCY AFFECTING CERTAIN FOXBOR010 to 50 MILLIAMPERE TRANSMITTERS Description of Circumstances:

NRC has been recently advised of two deficiencies in certain E-10 Series Foxboro transmitters which could adversely affect their operation during accident conditions. The deficiencies involve the improper use of Teflon wire insulation and an unsuitable capacitor in the amplifier section of these transmitters. The transmitters in question have been identified as Foxboro Models N-Ell, N-E13, and E-11, E-13 with suffix codes /MCA, /MCA/RRW, and /MCA/RR. These transmitters operate at an output signal level of 10 to 50 m?lliamperes (mA).

Similar model number units operating in the range of 4 to 20 mA are not a concern in these matters.

Briefly, the information on the deficiencies was brought to the attention of the NRC Staff during a recent meeting with several licensees of a " Utility Transmitter Qualification (UTQ) Group." This group has been formed to develop and implement an acceptable environmental qualification test program for safety-related electrical equipment in use or planned for use in nuclear power plants.

According to Foxboro, the Teflon insulation material in question has demonstrated a tendency to embrittle and deteriorate when subjected to an integrated radiation dose of 200 megarads.

A total integrated dese (TID) of 200 megarads was called for in the qualification test sponsored by the UTQ Group that led to the discovery of the Teflon insulation and capacitor problems.

With respect to the capacitor problem, the manufacturer determined that the capacitor was not hermetically sealed as specified.

Unsealed capacitors can leak and malfunction under adverse conditions, especially those of heat and time.

Foxboro determined that the capacitor failed after being subjected to high temperatures resulting from gamma heating during the above-mentioned qualification test.

Subsequent to the investigation into the discussed probleins, Foxboro issed a technical letter dated March 12. 1981 to all licensees, NSSS vendors, arcnitect-engineers, and others who have w chased the Foxboro 10 to 50 mA transmitters in question.

This technical letter further describes the Teflon and capacitor deficiencies and provides recommendations to identify and correct the prcblems.

Foxboro has also provided a copy of master instruction (MI) booklet, MI-20-145, dated September 1976, on the Foxboro 10 to 50 mA transmitters, to recipients of the technical letter.

The MI document has been specifically marked on pages 5 and 6' to identify the parts of the amplifier in question.

j I

f

. -.. ~-

s IEC 81-06 April 14,' 1981 Page 2 of 2 l

Enclosed are copies of the technical letter and the master instruction document for your use and appropriate action.

For holders of Licenses of operating facilities including NTOL and SEP plants, it should be noted that reporting requirements are specified in the NRR/0L safety evaluation report (SER) relating to environmental qualification of safety related electrical equipment. These instructions, "We request that you provide --- within 90 days," are stated in both the SER and the transmittal letter to each utility.

Recommended Actions to be Taken by All Nuclear Power Facilities lloiding an Operating Licensee or a Construction Permit:

1.

Determine if your facility has installed or plans to install Foxboro 10 to 50 mA transmitters that have model numbers the same as those identified above in safety-related systems located in areas subject to a harsh environment, including those areas where long-term LOCA coolant piping is routed.

2.

Where Foxboro 10 to 50 mA transmitters are identified, it is recommended that you replace the suspect amplifiers in accordance with the recommendations and instructions provided in the enclosed letter and instruction manual.

However, if it is determined that a transmitter is installed in an area where the TID is less than 10 megarads, the licensee should assure that the a.ffected transmitter will function as intended under the expected TID resulting from the postulated accident conditions.

3.

We remind you that the equipment qualification SER identified above requires that licensees of operating facilities (including NTOL and SEP plants) develop plans and programs including schedules for corrective action and the basis supporting continued operation.regarding items 1 and 2 above.

This information should be incorporated in your submittal to the SER on equipment qualification.

4.

For Holders of Construction Permits, resolution of these matters should be available for review through normal follow-up inspections by the NRC Regional Offices.

This information will also be considered during the operating license review.

No written response to this circular is required.

If you need additional information with regard to this subject, please contact the Director of the appropriate NRC Regional Office.

Attachments:

1.

Foxboro Technical Letter dated March 12, 1981 2.

Foxboro Master Instruction MI 20-145 dated September 1976 3.

Recently issued IE Circulars

. ~.,,.. w -

=

$E

/

3 $j r

y-e:1 3.gc q.ca r*,o,o.m anoisu.u.

z The Foxboro Company amumso b{g

&..g.c

,~

m 12 March 1981

.m m -

.,q;c y

M.$

$'I.N

. s u.

T.%.

,*W h%5 a %.c.

3~.$$

'y g ffg A

Subjects Potential Deficiency Affecting Foxboro Transmitters, 1.fa Model Numbers N-Ell, N-E13 or Ell, E13 with suffix e

Codes /MCA, /MCA/RRW, or /MCA/RR

$y$

Centlemen:

WM

[G ME Our records indicate that you have received one or more of the yoxboro model Ii %

numbered transmitters listed above.

This letter is to notify you that two i

deficiencias have been discovered in some of these transmitters which may 7 h.-

exist in the units shipped to you.

Tha transmitters in question operate at a 7~' C f -

cignal level of 10-50mA.

Similar model numbered units operating at 4-20mA y

.-p, are not affected.

fr. 16

.1 f The first issue involves the possible use of incorrect insulating sleeving on

} ".5 transistor and zener diode lead wires in the amplifier.

The second issue W 'JE involves the use of a specific vendor's capacitor which is not hermetically

. If T analed (although claimed to be so).

As a result, the capacitor electrolyte 1{.;:-;.

J,<

can leak under adverse service conditions, specifically baat and time.

The failure mode is a decrease in resistance across the capacitor resulting in cle.u :rical leakage. The transmitter operation can be affacted by limiting r,y D.

the output to something less than full value which, in time, can degrade to no output at all.

1-

{%C Insulating Sleeving - Radiation resistant slesving consisting of a silicone g

-t coated glass fibe c braid has been substituted by a teflon sleev1ng in some 9

~

transmitters.

Tests have shown that caflon will become brittle and deteriorate j

vich a substantial integrated radiation dose.

Foxboro test 1ng has demonstrated I

(]i S-that the reflen sleeving used in these devices vi.11 withstand an integrated dose cf 10 magarade with ne noticeable deterioration.

Tests to 200 magarads produce the brittle conditions which can result in the teflon flaking from the wires.

n xl Sased on these tests, operating plants not expected to exceed an integrated

(..

dose of 10 megarads have no potential problem and no action is required.

gg v.

Where the integrated dose rate could exceed 10 magarads, then units in service yg "(y p

chould be inspected to determine if the proper insulating material has been l

usad. This can be accomplished by opening the transmitter in accordance with Foxboro Master Instruction Mr.20-145.

The amplifier cover must be removed exposing the amplifier asses'ly.

At one end of the assembly, a transistor and

~.).

a zener diode are mounced in the base casting which serves as a hs;at. sink. The d

insulating material in quests on is a sleeving slipped over the lead sires from G

these two components.

The pt spor material is whita and heavy looking. Positive {

-l M

l mamunan:ms b -

]

..y. y h,.g f

t#.#

~

8 v.s m

-=-

sa

\\~

2.

Ease 2

.G W. i, 12 March.1981 g::_

.c.m-L.f.+; j

Subject:

4.. :Q' 2f...y

  • h.k w..

Q identification can be made by inspect.ing one end of the materf al to establish j M..

that the outer sacerial covers an inner braid.

Teflon, if used, will be a eg.

.1 ;

single layer material and could be either elaar or white.

Mt -

y G.

If improper insulation is present, then the corrective action is to replace the Q& j.

amplifier (Foxboro P/N NO148PW).

Replacement amplifiers can be purchased from

,m,-g your local Foxboro Sales or Service Representatives.

If you prefer to 1. ave

); s'21-

'nf Fcxboro Service Personnel inspect the equipment and, if necessary, replace the

[j$ n-T amplifier, this can be arranged at standard service races.

.a ' w Capacitor - The capacitor degradation problem was discovered over time through T* N h{;.?(,V IL tracking fmilure situations.

Internal corrective action has been taken to remove the vendor involved from the qualified vendor list and to purge all stock cf capacitors from this vendor. Degradation of this capacitor is a function ofThis ph..-.

f -@.

f$ _

time and service conditions with heat being a primary contributor.

vns observed in recat tests of transmitters using these capacitors. The capacitor R h in question is manufactured by Cornell-Duebiliar and can be specifically E I'. p~.

identified by a type number in the form TI-65-:CCCC as well as a monogram in a box h*

followed by a data code, e.g. [CDE 0874 )

It is assigned Foxboro part number

-V y. 4,e N0141MF.

W To determine if this capsciror is present requires a visual inspection of the d.:.

amplifier which can be accomplished as described above for the insulating sleeving c.' if inspection.

The recommended corrective action should the above described capacitor :

/I.

be present is to replace the amplifier (Toxboro P/N N0148PW) although is is possiblei /.

to replace the capacitor with a Foxboro provided substitute.

Use of Foxboro Service!.3..

personnel to perform the inspection and replacement, if necessary, can be arranged T. 1

9. %.

ct standard service rates na described above.

,s. 7 Due to lack of knowledge of specific application, redundancy, and the like, Foxbord J'~

cannot deternine if the NRC reporting requirements of 10CTR Part 21 are applicable..J,'

This detir

  • mtion is the responsimility or the user and any such reportius wuula -.

be made by them after completing their evaluation of the situation.

3

' J.

If you have any questions regarding the above, please contact the undersigned directly.

g '; :.

..u...

.Y.. '

Very truly yours, n. --

.g -

THE FOISORO COMPANT g ge

$.5

{ *\\

).-

4-.?

l 3-William Calder, ager

  • f.;,,

Corporate Quality Assurance joy

,g..

120381

~

Enclosure HI 20-145 POXBORO my Asmasmm W..

if..:.>

.; -e -

3,, s. g.g.

i p.vh sdmMi c*iod Attechmint.2i.

Mi

~k 20-145 o

Instruction

. N.

september 1976,

c..

- ELECTRONIC SERVICING Wj 'r..%

2;.. 5 Series 80 Force-Balance Transmitters

_4 y: :.

(10 to S0 m A Signal) iy ;.

.4 J

^.

' c.*-..~

vgne"OF CousTTmpoest?

na=eg m k

s Aasel.rPip w

y

\\

e, aus asw?._

i Span D

STAfic

' A-Q '*_ -

an4 scatw

> :n.

?..e Series 2 0 23ectroni: Force-scarw i

3alance Tran:M :ter to;-works th:m at j*-g g,

,L "; 's :

rir,ht is used with varicus types of

-4 0

'onct

.u9'.;;,

l taries acecrding to the type of appli-

/

N' l

d N transmitters. The bcdy (not :hown)

.~4 fi .h e4 1?Q@

cation involved. The elec rical viring gg.-Q.J ~.%.,_

MU

-]

i t

. - (c is the sa.ns for all tre.nsmitter top-m ks.

g,,,,,,,,,

9,g

- l

.,,g.(

,4, (g.-

. p,....

non sinn

s sarcTe=

N y-35 l:

.h-l fy

.p.w m

3 :y l _* _Y k "f.

w g.;

I x

we....

p

.:5 t

Mtrtnr - Inte:rs). A mt.1 L C' e r

    • h TERMINAL BLOCK AaapurlER FORCE MOTOR (RE 44 view) g iugygp.,, en.ifyg 3

,%, 4

-a cnm

.- g.

-=

e.-

8

'8

'-e e..

a k

_ E are

.4

-t

.e.

A..m 5

l e

ew '

A fe 1

h DCTECTOR dI~*'

9 n t,-

-- nu r,ma r*

WYTM OPTO4AL Op.:

WhCTicM 30M gg e

8 wmouf ##TM b~

3

's p

JUPtCTION BQX 7*

m R=.... e e.m..r.c+

g'.

e l

s

= =. = en e.

,3g e

^

saa n

oc

.7

'.o h.:

CF' TONAL JUNCTO,4 BCX 4-r.a.M SO.K

,j CCreas(CTC i ua wew T u cRi I G.T E O R G -

matramar a g-w:

a

sen; n %5W

4...~ ?.,?,c

'S^N6

W Ag.,

w.-:

20-145 p..

.F.

b;s. sn Page 2

.,--~%

.jj-EfM)

Wiring - Remote A:clif*.er (with Junction Box.5upplied o"7" User)

Z.W*:r.5 m

T I

E

'. *.:E..

FCRC1 WQ M

<assa wcw' su=Ct m aos 4

tsupeuen svusani

,' eum m

A. -

d a

d

.A,,,,,,,,,

e 4

r,,

l nu 1 /"

2.E AG

- p a

.i 8--

p Jc!M S

?;

< ::.=*.

/

  • g e

a==

m a,.,

C

.. :s...r

~

,J.22jp.

f5 E[

9 are hc(Yi

[4T r

m a

-- II L "8-eM I

. as 9

eam

-; V

'@ *:hW.

3g we we

  • *"':-44.'

h*'W b a *.E!f 9

vio I

q @~~e o

.A 2

-,,m,,,,e, r

v.

se. note A. M

~

m ccrc.

+ ;r bel =w astoft am*uriEn

- : 1.,i rume===. srns

'D'-ND QuenECT S.eteELD f ggue

eso, a i m Trnwu a. a ocu aus

-/

58' e a ;w

..sp anspurits togwcTt voustTtal oes C 1 t s.vrw omis

".M "1 D 4

-en ve.

i ves

.;g

~

1En i,

"t-p- =

r *U-l a

W se 7.

n. 5:

ye

,,,,.g.

we 4 0

> Susage asse 4,','.*.*-

l nacanen

@.c..s -

t~1'n., k,

..)

y -.. c--

..n u

Y bhb h[

W ii.

'4iF_nz - Remete At-lifier

/'d (with Op acn u Foxccr.: Jun:non Sex)

g' 4 / -

,o Ct Tv,

,,s

. toc,

.~

- W;m (NE AR vt(wl CDb NE9 T Opw

[

  • g.-

IYh-Nh*4

, f;Ih b4 r"-*J

'l*""

[ r 't f

%T4 i

y

,~

n c

u fe=

l v

s[< ns my

.o

. -. 9...

i

.=t i

JU9eCT108s toX

,,ypsCT10fe BOX

  • 4 Yg "

g j

f4 (REAA VIEW 1 (FMcDsT VIEwl

.4. ;a.s. -. -

e t

ett l

. _ 2.,,

' 1.E w.

~3.

,(

g 5 A, f

l' i

l.

(, !."" [

/

WA8I ""

'. Ta '5$

,,o,T...

k

]

j y].'{

[_

e:

m

\\

fiEns0TE Aessurits

'*K, ' ( ;,,

See Dote II"*""*' N M

balow

-,q&

s 'p.

=-

  • Ib>-.

et

~. a.s.

aus y

m.u iNEWCTE tEDUIITES, COtfedCT StelEI.B 70 -

C 1 4 _..

Ig Tsnimeiaa. 2 Q 4

'f

  1. ED stD

} = ".,

E 5 g

g

]

s p

e e

e.,,,

cs.

M cowge 5w 11 4

a 7'",

y"'

8 4 V'O WG-_

p sua*Lv ane atetsyte I

saa N01*It If a=plifier is converted from integral te remote in the field, add a fu=per between + and - ter:tinals on front of terminal bicek.

s-(

.n.

k

$,-.1

14

' g 7: ~.

f.NS.:

s

._ =;.

.. v. ws..

w...

1 20-14SV :e r

P4e K..,

l

. D: c.-

  • i

~. '.

Deerational check

. -..,. +

1'ha fc11owing prc edure is done with the Force-3alance Tr-mitter connected to the process.; _

-s'.. '.

M'..Y, TTRMINAL BLoCM D-C vot.TMETER 0-cov 4ANGC

1. Unscrew and remove the tcp cover on transmitter.

x..

z

@2 L

Chect 'i,.

7..

"a z

2. Discon.tect F lead on terMnal block.

the d-c voltage at terminals 2 (+) and F (-M-

/ 4

,.,2 1

o o

on te.

  • al block. Die voltage should read. A -

I

~

between 63 and 95 volts d-c.

Ifnovoltage3.-fej.

ci less than 63 volts is present, check the..>g....

f

&..s~S d'

over supply and external load. Reconnect 7

A lead to ter=inal block.

f e

w.2 sa 0-C MILUAWMCTER 3.

P j

Q-Jo Wa RANGC

7.,i-s r

TERMINAL St.DCK

3. Recove link between ter:inals 2 and 1 cy, lc J... '

2 sad 1 (as applicable), and nutstituta _

e,jf f a n1111an=ater to resd output current, y

.y -

E

  • y.,.

7: * >}

innunst aLocu A

s. +..

n I' '"* *"

"* "****"" **' #~ l'#

g 0,'

(above 50 =a), proceed to Step 5.""*If the current re.'de

/

s y

i 7 :. '.i ing is icw (belev 10 =m), cementarily short ter -9mi s l -

I and 7 :n ter..inal bioch.

m 2 the current goes upsca~e I' the current re phe low, re=cve y 3

proceed to Step 5.

5;&n 11:d*.3 1 through 6 on,el=. int.1 t10th t: ch::h th-.y

}'-

' ' g, force-:: tor resistante. The force-:notor resistance M f' l

1 [g O should, read 131 et=s between ter-Annis 1 and 3, and

.::1.h f

42 ch=s between to minals 4 and 5 U

sdings are

.. $r.

s e

correct, reconnect tran links on ter:ninal block and w-

{'

proceed to Step 5 If readings are not ccrrect, re-4 13 y.

place force-motor.

i,

? ir:

slcwly t.s,c:

.x er=inC: A and 5 with capacitsr i= series.

5. cc=nect a ; air of headphones t: move the detectar fic= one extre:.a position to the o.,her *.

by ;9shi.E the counterweight as shown at left. At sese 3-90 int h -0*.;-cy

  • e t ne enculd be heard. If a 40CC-cy:1Ca ~~.

c:ne is heard, proceed to Step 6.

U the cy de tone is 5: g

,m

/g not hes:-i, d'.s::nnect A, 3, C, and D en terminal block to 9

  • s

/

' A*'

vx--

check dete: :: reAintante.

'.e detector resistance shoul:.

s g'"

read 32 ch=3 bet een te- *- sis A and 3, and 56 chts bet it

\\

~

e If readings are correct, reconne veen to:- * --is 0 and 3.

F.

k2

$g N leads en te:--Jnal block and preceed to Step 6.

If readi:.gr

~

s#

4 13 i

t

.O h are not :Orrect, repla:s detector.

r os m f

gg b

< ?-

o.2S Mt 1

i to eLocx ;,p TEpwi m..M o.,,,,,1 g

Et i

s' i 4

!;cte:

"lf s pa*r cf headphenes is not ainilable, veltnoter racy be used to chech esci11stor.

}

?

n

'4 hen the oscillst:r is operating, 2 to ic volts 39 an n e:

W a-c in present. Chir cethod, however, is not as h...

sen=itive ss the head;hene method.

O s

7:~

$e s

0. Repla:e amplifier if s;are is arsilable.

i i

a l

If a=pli'ier

  • s not avcilable, then g

j L

proceed te k::plifier Scrvicing en Page 5 I

h....

I

WMM M4 **'04'

. - -" t?!.! $ $ ~' *.!.

- - -- &- - m; a.

  • j ct *.

ekmq ervi gce ces 7,

e,

, 3ng

"' ** 'l M

^g es w as g

l sasso av f

  • dM d

g

,%)

g l'f/J3 83

  1. y,*, #,, g,

g 4

'ggC24al

(

~

ierl y

>dm(kM<

  1. ^8 u<l R*

[~I s rr,d -

C

_-er g'G's \\ "Cs***l.'

c,

-),-

7

.-M9 s-c.eas i

i..

,.,s r I

l (asm. I l'58" cag zu ie.e.9)

\\

s a

4ta l

l E2.81

' e 3

4 j

M

  1. 4-

.1, wqns

.:C5 D*" h87

,di M

i e

if

.) iC l

g M

'

  • s W

sien

,g j q gaa, 6'

g Iniv 4.c l

l

^GL" l

ygg F

.,,,e, I

l. m

.i Aaneerm

~x lc4 y 4,-

I gw g

-..g 2

+

m v =-

l 8t/25 R3

'~~

~

4 i{4h,J.s. :

i m--

r l5

  • @T8i-

-M l

8

~

gg Errem

?>

L ----.J l

I

<ne w

ww w me, s nca.

did WA t

8 G%

ner l

$N695j EC l

l

~

m.g L

--.---.------.s trace MGM

  • xnsssasw o c, bon gsegess orsrevar 3sycirao.

B tbt rA6ES. set' T4We/ is'irdthr isMr$ tant rHf l l 7,gm, yg gm.m

!.c'nen ino s<r r.esas nayr tun'tM'e san ce on ratar <>

7A F con t e m r.wot TffAfw42 Block AAI r.Vf 44W.sAidfftschsg.

j y f y'g,'**pr Aso rur

4. gg 4pp ao.ced /4Wyrp As! TVe ps,4e 9 ogy,cm gwgmg r

sA-rse ree.suuu six.e.

() sows seirae cos*wcrevs item

,D,_e s c ri p t ion farLA A rm,mm kl Resistor 150 0 tSS. le't W N0141PE lt2 Resistor. L>etiseen $62 ariel 787 0 Selecturl ifl Hesistor. ?? h0 85f 1/4 W N01411 X h 4, fu's Besistors. 10 ku 158, 1/4 W N121!NP

,g.gg 7 R5 Resistor, 3.3 k0 855.1/4 W Wl?OZL h7 Nesistor. 10 0 458. 1/4 W Q100 Alf RS Res* stor. 22 kn 151,1/? U N110Cll LINK

l'AII,-

A1111AIN1EMEN'f H)

Resistor. 147 0 tII. 1/8 W E014?LS RIO Resistor. 261 0 315. 1/8 W E0142NB ELmflON (on tenninal block)

CL Capacitor,tr.047 pF 50 volta N01435W llIGH 1-2 3-4 54 7-10 C2, C3. C4 Capacitors. 1.2 pF. 35 volts N119Hil MEDIUl4 1-2 3-5 4-6 7-9 s

P 0v CRI-CRT Diodes.TypeIN6k5 N109EZ LOW 1-3 2-4 S-6 7-8 CHS Dlode. Zener, Type IN29i M (15 V)

NO257EN Q1 Transistor. Type 2N1711 N131BP G2 Translator. Type 2N3712 N0141Mc Q1 Transistor, Type SP4435 N014BMn

  • To determine the range of the Span Selection, Tl Trans former N0141Py refer to the apoeiric jlict.ruction for the T2 Detector Asseenbly N013dMI inetrument involved.

. Amplifier Assesibly N0143SY Terstinal block Assembly

N0148SI, Fles Tape (reer of terminst block)

N014BSx 8' Force Motor Assembly includes Detector Assen-Marce mtor Assemblyn

, bly and Teratinal B3ocic Assembly.

, Y'N01485M Por Ell All, EllDN. E)l0lt h SIl0M For Ell AL, EllAM, E13pl E13V. EI7.

.i

'N01483N Por E137 (50, 80. 8 100 sm; 2, 3. 4 4.jp siges). N01483ti g.

j '..

..J.

For E137 (15, 25 msas 3/2 1 in sizes)

N0148FY t

e i

,b, h

h!Id@k i IMNhd'N5'illhI gek h Uf h hN,

%hh f

I{

1: M.O..C ?:..M.vgu.Wf6$h;fM g$g g ggg ggjg g

-$WR

  • 5$;n%%%

3.:.g- %s.

n -

.w....:> 9.

e'**s.?b.Q 20-1 W.~

'pf Pase 5

.2:

G:x. a,2

.v Amiclifier servicina W1:g

,4

.i 1 A. gY 3?n.-i ciq

g

&, -c@-h

.fh

?f*%

le i

- m&

T f

Q tr ii?

,l r___

~c.

$.$c

@k I

a

~

1.,+e, g

6#

1 r s....v.

n F..hy e

r c.

l* r 9

  • y

s p % (

3

4. d

) *' Y"7 i

Capacitor l

AC' f '; (

Loolc for Cornell-Dubilier; smaller than component d%

D:N

$/)

,g, sliown.

Identified by k

,$-f

{g, f.;g.

8 b 4

.g %

code in form TX-65-XXXX, g.

g g

b

'W ate Code C1.11-nuh111r fD k

-gM

o

~

o o 9 o-9 o

U bbb

-?f r..

wo

! {.jpi-A=plifier Assectly A=;11fier Circuit 3 card r:

.' d.e

.7.. : ;.

.R) T{

~P:

n:te:

2.e e c.' -- t i: en Page L, the Oc ;cnent c.sse.t. cnd the circuit teard (shee.

Ti r accve) are to to used in =c Ju=:ti n vit.. the fellowing precedure.

Sti $l'

s* s...
.c n

M.f.

~[.

1.

Rem:ve a=;11fier :cver.

S.e (1*ots tLst emitter cir:uit g:es t: ter.: '%

nina; d'ack bafere returning to test

.O ' @f,"

t am:11fier should still be connected te i

poi't

.)

.;p tranar.itter with power applied.

S U-T t

2.

Measu the d-: rel: age tetfeen If all the abeys :=;cnents are A..*..-

(

fier circuit oca] as shet-.-) ar.d A'N (+) :n a=pli-fin tic-4 s, check the pr'-- ; of 1, q ..

test points pri=ary is not shcrted or : pen, repla:s.f,.---

abcVe. 2.1s i

I vol age should be appr:ni=ately 15 vcits

7. '..

d-and should be essentially cen: tant is. ~

g rsgsrdless of output enrrent variati:ns.

I* cts: If 11

  • s replaced, it is.'.:4 necessa.ry t: reselect the slue of r,2.

W

,7 If this veltage is net ecrrect, See Pass C.

Chack c. gain for the acco-d b.

A 33,'R6, and 03.

cy:.e tone.

W/7;.

che:'s cocyonents C2, 06,found c be o;er-kT If these cc=cenenta are p:ints d"' ech the voltages be: Teen testD 4

atie, replac's Zener diode CE8.

(-'

(+)fvoltagesare 3

check outrut current by manually respect o

s c.,

u

noving the counterweight' as shown in Step

=crrect, proceed to Step 5.

If voltagest i

a ef Page 3 If current is not correct, are incer:.ect, check ec=ponents C4 and ce.-

4.

check the 4 COO-cycle tone with hesdphones, 2 these ::=pene.te are acerable check ct shcWn in Step 5 CC ?ste 3 If 4000*

CE?s CEL, C35, CBS, B4, E% s.nd h.E.

Im ey:le tone is presc.t. pr:ceed to Step 4.

.E ': +

5.

Check 02 and C3 by applying a Y:..

If 100C cycle ::r.s is not prese t,

be,,ttery vcita e of 1.5 cits t.t est p:fC:, -

di ( J replac4(.).

t.nd It c:t;;t dree n

!!.u.;;;

'-s ez,g la,-

r..

hsch the roita e tstracn test point:

..x

(*) and A ( dioder 05.1 and CE2 cr.d If this v=1 tags is nor,

.angu, y

s-correct, :F.ech

-6c:4 ;2.

3.1 ' -

capacitor C3 to uster 'no if defective..

W e

t'.

If the trener.itter etil' d:e= ndt -/-

chech continuity of transie':b'- C.1 e.itmter f an?.ti n prcperly, return the a:plifierg circuit between test ;=ints and M.

t: U2e Foxt0r0 Company for repairs.

y

  • c
'c.y.s.
;

h

's

.. - Ik,.g!

.'f E

=:-

20-14 W N, m C

w.

Page at. -.a.'4

.4. e

.C

-cu.t Antolifier Calibrs* ion W;a&,

'~

g y un -

~

The follcwing procedure is required wnen transistor 68;k' Q1 is replaced or resistor R2 has chan;;ed in value.

d N

%w%

p

'" (

QuTMJT pis;

'D-C MILUAMMCTEM D-C Miu.lAMMCTt'M VARIAeLE 0-C

.a O-SO MA RANGE 0*2 MA RANGC CURROIT SolRCE

,;-g gg TERMINAL SLDcx 3

f' -

n n

o a

,, [r :-

e gs

." h.ih

-N Y.'M f.Y.b%.;

S At b%

8Sf:

i UNW k

l

@ S no a

CONNCCTED JT"

r. r; s
t. m.

hl kg wJ 3ote: If a ?cxcoro Current Chlibrator is used as the variable d-c current ceurce, set the.*1.netio= switch for 0.h to 2.0 ca OUT

. B4,.y fG and add a 2 5% resistor in series with cne cutput lead.

t

.$.p b

1. ;'ake ccnnecti:ns as chown abcVe,

'"he A

b tracr=itter is connected to itt nc =al D.

g

.g::, ;,.,y u

4. c. 9
ct
er supply and er. terns 1 lead.

l

.k '..?d)

, ~,,

't f

n

,f NE.' i.;'

2

- Q)

<C,>

.y,,

'-n$

n '.

t *Ga&w ;7 *

.e p"

],,,,,

. l@

2. Re=cve a=plifier frc= houc1=g N!

-5. 5,9 N

"@M h

w 9

but do not rersove leads frc=

Nl '

g

'{

g
,3$

.er= int.1 block.-

/

V M-l j

. c; j

c. -

.c -c g

~

5

.3.v.$

/

t

.~

1-r~.:i.,

?*.I.R T.-

^p;I'/.9

3. Remove smplifier cover.

I y, ;;f 1.r,...,2..

.= m u.cc

,...e=ove ficm board assenb1

  • resister,RE Q.;E 2:u a nos and diccennect Jucper "C"

~? -- T -

I# # # # # E 1.,.,

\\-

e o o_.iiv_o o 4 2D U

o 0GQ.

~

i!

d'1!

h :. I'k n

f l

1 i

.p '.E m t

-U

.g.. S

\\

-ca-h <=>a o

$ ~7 C

.1 l

5. Connect a resistance decade bcx C.

w

-c >

l in ;1 ace cf 32.

Ad'ust decada M,M.

bcr. for f.00 ch=s.

4.:._U_

lva

=_

Q

6. Apply power to transmittsr.

.C '.

M.,' 3

7. Adjust the variable current scurce for O.4 20.00A ma.

g,,,,

[- i

~NQ

.I

$.6I$

2 w

eo-14.=N 4

Page-$.',$y e ~2 %

h""ddY ammier emntratt n - (continued) d

{+Q

.w e

~

' 'f g

p?y%

h.

F 9 P.

6. Road output =1"' = eater.

Adjust the zero cerew

'f g%.yr cn trr:snitter until meter reads 10 20.5 as.

(

f.,geaw

9. Ad'ust the variable current. source for 2 20.004 :m.

N%

i.0 ' r-. : H 4:w...y.j h

je[~h n

?'

10. Rea,a output =1111arr.eter, It should resd So 10.3 ma.

If out;ut s.

res:s 1cw, decresse the re:istu.ce en t!.e decada bo:c;

  • r :Itput f'

p.

'i h'JJ reads hip, increase tne resis r.nce on the decsde box.

b' t@:-

MB

11. Repeat Steps 7 thrcush 10 until

' gy. j y

cutput reads correctly.

tr;.a.n,;.3

,h h l"%.'r

12. Remove power to transmitter.

4"ht '

M.9.n:

P.

.. f;

13. ::ste:mine the value of reci:tanes frc

-? :A Transistor and diode b

b>4 Sc.cet a re:'. tor r./ check leads for insulation.

" "!M.'

the as:sde box.

E2.w this.c.ua and e:nneet sero:=t Wg quD** / If color is clear or single 54iEG M

([

layer white, it is teflon k.7 T[

3 snd should be replaced.

?.: :?

Q j

t

.:(...

",1 u., <

g, j.

." ', C -

i If white cover over a braid, if f.

y- [o:.?

it is pclysulf ce, the correct

1..,

s.-

t.ria1.

y s,*

~

Q, O

b 4 w:-

$ ^,.

'O

~

1% nats11 a=plifier on trans::'tter housing.f l w.

e

^

,'y l

=

  • v, p,

.n,,i.

5!

~

r 16.

Replace linki on ter=insi tio9. t:

75 I'i,he

l origir.a1 pcaition.

h. p

.1 7

m 1

W'" - -

g

17. Raca11brate inst: ament to desired range.

[(l j

,{

..f..k

..e.

.r;.j.-

g. ?..

g n=:=

<..i.. -

n u-

~y*.-

9e

-.. p.

The Foxboro Company f.gygggd

=

....~.o..

,g..;..

Na

i t i-IE Circulcr 81-06 April 14, 1981 RECENTLY ISSUED IE CIRCULARS Cirr11ar Date of No.

Subject Issue Issued to 81-04 (Notyetissued) 81-05 Self Aligning Rod 3/3/81 All holders of a End Bushings for Pipe power reactor Supports OL or CP 81-03 Inoperable Seismic 3/2/81 All holders of a Monitoring Instruments power reactor OL or CP 81-02 Performance of NRC-Licensed 2/9/81 All holders of a Individuals While on Duty power, test, or research reactor OL or CP 81-01 Design Problems Involving 1/23/81 All holders of Indicating Pushbutton a power reactor Switches Manufactured by OL or CP Honeywell, Incorporated 80-25 Case Histories of 12/5/80 All holders of a Radiography Events radiography license 80-24 AECL Teletherapy Unit 12/2/80 All holders of a Malfunctions teletherapy license 80-23 Potential Defects in 10/31/80 All holders of a Beloit Power Systems power reactor OL or CP Emergency Generators 80-22 Confirmation of 10/2/80 All holders of a Employee Qualifications power reactor OL or CP 80-21 Regulation of 9/10/80 All holders of Refueling Crews a power reactor OL or CP 80-20 Changes in Safe-Slab 8/21/80 All holders of Tank Dimensions a Part 50 or Part 70 Fuel Facility License 80-19 Noncompliance with 8/26/80 All holders of Licensee Requirements a medical license

--___]

Retrieved from "https://kanterella.com/w/index.php?title=ML20009E223&oldid=4654425"