ML20077H676

Westinghouse Qualification Testing of Rosemount Model 1153 Series a Electronic Transmitters

ML20077H676
Person / Time
Site:	Waterford
Issue date:	01/05/1979
From:	Bitting R WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP.
To:
Shared Package
ML20077H671	List: ML20077H672 ML20077H676 ML20077H677 W3P83-1853, Forwards Addl Info Required to Resolve Aging & Operability Issues Re Environ Qualification of Rosemount Transmitters Model 1153A.Encls Represent Justification for Interim Operation
References
NUDOCS 8308110202
Download: ML20077H676 (30)

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QUALIFICATIO.'i TESTING OF ROSEMOUNT :/.0 DEL 1153 SERIES A ELECTRONIC TRANSMITTERS PREFARED BY

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.,1 IMl!79 R.A. Bitting, Pmcesy,s Control Board Grouc

. REVIE'.'ED BY. NP

., / (( 7

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R.B. Miller, Precess & Centrol Coard Gro :n l.

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" DECEMBER ' 1978 ' ~ ' ~~~- ' -" '

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a SECTION TITLE

' FAGE

1.0 INTRODUCTION

3 2.0 TEST UNITS 3-3.0 TEST DESCRIPTION 3

4.0 IRRADIATION 6

5.0 SEISMIC SIMULATION 11 6.0 HIGH TEMPEP.S.Tt RE STEA.M 21 ~

ENVIRONMENT

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7.0

' CONC (USIONS 28 s

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1.0 INTR 22UCT!ON

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Roseto;r.t.'icdii '.~ 53 Series A transmit:Ers sere ter.;d te lear. their c;erating characteristic 3 during a !!: stir:ghousa PW;.50 level A :.Lalification test.

The test consisted of a sec...ial series i., whica tha transci:ters were irr'adiated, put throu;h a seiscic si.mulatics and subjected to's high tercerature stear enviror.nent.

Details of each cf these cub-tests appear in this report.

2.0 TEST UN:TS The test units were Rosemount F.cdel:1153 series A -transmitters which are hanufactured specifically for nuclear power application. A listing of the identification nerbers, serial nu:Sers and ranges appear in Table 2.1.

An outline and dimer.sional drawing appears in figure 2.1.

The test units were manufactured under standard Rosemount production procedures for nuclear grade eouipment.

They were purchased by Westiaghouse purchase order 546-CLC-290475 MN.

Each transmitter was supplied with a data package listing final calibration data, tater.ial certifications for all pressure boundry carts and certificatio7 of hydrestatic tasting and nuclear grade cleaning.

WPWRSD normally specifies a sealed transmitter with pig-tail leads for U

electrical connection.

Since Rosenount does not supply thic, it was necassary to obtain a seal from ar.other scarce. The seal usec was a Conax fitting, par: number PL-18-BZ-P, purchased by WPWRSD purchase orcer 545-TSR-293477-P.N.

The seal consisted of 5 foe: of # 18 AWG sclid ccpper wire with kaoton insulation, installed in a car.ex gland seal with a oc'.y-solfane gland. The connector has a 1/2" NPT male tnrFad en b'oth ends.

The connector was threaded into the cor.duit port on the transmitter and an RTV sealant was applied to the inside and outside of th~e connection.

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3.0 TEST DESCRIPTIO!'

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3.1 Material Control Prior to the start of testing,the transmittars were subjected to an incoming inscection and assignment of an individeii route card.

The route card is retained as a perr.anent recorc of each step in the test with the signature of the responsible party appearing after conoleticn of each step.

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TEST UNITS i

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H0 DEL TYPE CALIBRATED SPAN _

REC. DUTPUT, (ma},

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_D.E. SIGNATION

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y All-1 1153GA9 Gage Pressure 1700-2500 PSIG Il-20 135'k?

e AW-2 1153GA9 Gage Pressure

'0-3000 PSIG 4-20 135940 i

t AX-1

~ 11530A5 Di(f. Dressure 138-500 in. W.C.,.

4-20 135945 F.

.iX-2

~ 1153DAS Diff. Pressure 475-210 in. W.C.

4-20 135946' 1

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3.2 Calibr+ tion Checks-I 2'-pci:t calibration check per SA'M standard ?:iC E;.1-13 was performed en each transmittar orior to 7.2 start of testing and aftar each major phase of the test.

Tris data serves as a measure of the chinge in reference accuracy due to the test conditions. A surzry of this data apnears in table 3.1

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An ll-point calibration check was also performed on the test units te varify operability at various points in the test.

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3.3 Time Resocnse A rcug'h measurement of the Ofme res:onse of each transmitter

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was made oefore and after irradiation in order to gace degradatisr.

The measurement was made by computing tne first order time constant of the transmitter response to a step change input.

The measurement was made for input step changes of 5-955, 95-5%,

45-55% cf calibrated span. The neasurement was made at ro:r temperature and 130*F.

Results cf nese measurements appears in table 3.2.

,3. 4 Tes': Secuence s

The test was performed in the follcwing sequence:

initial.

,.3ra inspection, 21-ocint calibretien check, time response,. 21-pcint calibration check, irradiation, 21-point calibration check, ti. e response. 21-point calibration check, taismic simul -ion, 21-poir.t calibration check, hiah tama-at fr' t*-

calibration check.

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mt, final 21-point t

After irradiation, the test units were not opened for inspection until a.fter the high temperature steam test.

tio calibration adjustments were made after the initial calibration.

4.0 IRPA3I A-'IO.*:

4.1 Tes t Facilitv Irradiation was'oerformed at Iso edix, Inc. in Parsiepany, N.J.

l The test facility uses e 1,500,030 curie cobalt-60 source l'

arranged in a rectangular array to orovide a fairly uniforn l

field strength o'ver a. 3 ft by 2.ft area.

The source is stored in a water pool located below.the test area and it can be raised I ' ~......

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or loviered by means of a hydraulic centrol.

The test was perfor:.2d

' using ecuipment and personnel frca !!Pt.'RSD Forest Hills site.

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Call 0 HAT 10N CllLCKS h

Pcst Prc TasTTc Post Past Post

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Initial T-R 52.5'c Rad 1 MRAD Rad TR TR Seismic Steam AW-1 ~

+0.437 40.144

+1.437 +0.250 &2.50

+5.250 F4.338

+4.406 F5.219

+4.294

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-0.113 -0.288

+0.944 -0.313 0

+3.188 F3.719

+3.900 F4.644

+3.744

-0.056 2.5.ma AW-2

+0.056 +0.025

-0.150 +0.062 62.563

-0.125

_-0.313 -0.375

-0.563 -0.513

-0.150 0.350 -0.363 0.550

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AX-1

+0.269 +0.219

+0.362 +0.250 &1.375

+1. 312 F1.606

+1.675 to.769 25.8 ma

+0.n06 -0.069

-0.131 0

4 0.fi75

+1.063 F1.331.

F1.488 -0.462 AX-2 10.006 +0.019

-0.063 to.437

+1.750 '2.225

+2.413' e5.831 29.3 ma

-0.125 10.125 (1.563 F1.913

+2.031 64.200

-0.081 -0.138 HOTE VALUEp ARE II,1 % Call BRATED SPAlf ~

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TABLE 3.1

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I Step Pro.R_adiation P,7st-Radiation s

1 80*F 130*F Bn*F 130'F 5-95 35 40 39 42 AW-1 '

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4 AX-1 95-5 138 47 129 43..

i 45-55 102 33 124 39 50 5-95 211 55 137 AX-2 95-5 122 52 134 53 _

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4.2 Test Sec-Uo Tne test units were un$.cked and a 2ipoint calibratict. chec::

j was parforced.

Tne test units were then i r,._ lied ir. tne.c-cell with pressure and electrical lines rca vat Ic the wod:ing area.

Pressure was suoplied f' rom a bottled nitregen supply so that all transmitters wera supplied with a 2000 PSIG static pressure as well as a 342 in. W.C. differential-pressure for test units AX-1 and 2.

The static anc differential pressure was conitored

by reference transducers located outside of the not cell.

Fower was supplied to the trahsmitters frem 'dISD 7330 series NLP cards in series with a 500 ohm load.

Tna NFL card output is 40 VDC.

Tne voltage drop across a 100 ohm resistor was connectad to data a'cc;uisiticn equipment.

The test units were at pcwer and monitored at all tims tne source was up.

Data acouisition consisted of Texas Instrur.ents analog recorders and a Fluke digital data logger.

Calibration checks as well, as test data were simultaneously recorded on these.

Figure 4.1 illustrates the set-up.

4.3 Test Procedure e

Once the transmitters were installed in the hot cell an li-pcint calibration check was performed to verify the 0;:erability of the test units and set-up. A thirty minute dose check was than perfomed.

A dose rate of 2.5M Rad /hr was cesired'ior a total integrated dose of SOM Rad.

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Desimetry was accomplished using red perspex '50simeters placed i

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on the face, middle and back of each[(test unit.

The average of the desireten placed at the center of%H the test units is used to determine.the dose rate.

After the first thirty minutes of radiation, which cerrasponcs to approxt:r.ately IM Rad, a 21-point calibration check was performed..

At the half wa~y point -(i.e. 25M P.ad) the test units were switened to the opposite sice of the soun e so that an even overall exposure could be obtained.. An ll-ncint calibration check was again

, perfcrme d.

A thirty r.inute dose check was alsc done for tne

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second half of radiation.

l After 50M Rad had been accumalated the test units were rereved l

from the cell and a 21-point calibration check was again performed.

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G u r..g./.,: pre-irradiation 21-point calibra' ion check rest, unit AW-i showed a consta.1t 33 ma output for all pressura inputs. Tnis condition was corrected by unplugging the L_O'...

circuit beard and than reinstalling -t.

ihe tesi results are shown in figure 4.2.

• This graph iliustrates the error in the output of the test units versus time.

The error is calculated by subtracting the percent ci span change.

in the reference frcm tne percent of scan change of the test unit,

, the spi used oeing the calit: rated span. of the test unit.

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graph sisc shows the ' dose rate during each se'gment of the test.

Table 4.1 gives the worst error and the total integrated dose

}at which. it occurred.

5.0 SEISMIC SIMU!.ATION 5.1 Test Facility The seisric simulation was perf:rned at the Westinghouse Advancec.Er.ergy System (WAESD) seismic laboratoiy in large, Pa*

This facility has the capacility for conducting biaxial multi-g frequency tests to IEEE-344-1975.

The test table used has a 6 feet by S' feet surface. ~The driving piston has a 20 inch peak to' peak stroke and is capable of delivering,22,000 lbs of force and a peak velocity of 100 inches per second.

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5.2 Test Set-to v

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The test units were mounted on a test fixture which was bolted to the test. table at a 45 degree angle to the rrevement of tha piston. The pisten was at a 35 degree angle from the horizontal plane of the test tabla, so that equal moticn was in three mutually perpendicular axis of the test units' reference.

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The test table. motion was controlled by inputs ~ fed into a r

.77' hydraulic controller. A control acceleremeter provided feedback to the controller as well as input to a shock spectrum enalyzer.

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The control accelerometer sensed the horozental table r.otion in

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,.the plane of 'the piston, so that'its. response was 1.4' tines the - - - -

acceleration in any of the axes of the test units' reference.

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The shock spectrum analyzer was a *Spectrual' Dynamics.Mocal 13192 ~

unit. Itsoutput plotted on an X-Y recorder was used to g

catermine the success of any one seismic simulation.

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TABLE 4..

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MAXIMUM IRRADIATION ERRORS t

TEST TOTAL INTEGRATED UNIT ERROR (%)

DOSE (MRAD)

AW-1

+ 50.2 3.8

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AW-2

+ 4.0 4.2 5

f AX-1

+ 13.2 50

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n AX-2 15.9 50

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.(Continued) 5.2 Test Se 'Jo Tha tast units were connected to 3/8" 0.D. stainless steel tubing which was attachd to a pre 5 cure manifold located

' adjacent tc the test table by means of flexicle lines.

The ;.ressure manifold contained reference transmitters which

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were capable of sensing the same pre;sure as the test units.

Pressure was maintained by fill,iEg the pressure lines with water, than applying a static pressure fron a nitrogen supply.

The pressure lines were then valved off from the supply. A differential pressure was esiablished for the~ differential pressure units oy blee' ding the low pressure. side until the cormet output was seen on the reference unit. This set-up is illustrated in figure 5.1.

Power was supplied to the test units and the reference units fren WISD model 7300 HLP. cards in series with a 503 chm load.

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The tFansmitter output across a 120 ohm resistor was conditioned and reccrded 'on Brush Mark 2C0 recorders.

Ccnditioning was.

6-such tnat the full scale on the recor' der represented +10% of the calibrated span of the test and reference units. 7his 4'

set-up is' illustrated in figure 5.2.

' 5.3 Test Proced';re The test consisted of 5 operating basis earthquakes (OSE's) followed by 4 safe shutdown earthquakes (SSE s).

The OSE's were all performed with the test fixture in the same pesitien.'

The SSE's were perforned one each in four different positions, G', 90* 120*

and 270* from the OBE position. The test inputs were labeled A.B and C to cover la.1,. middle and high frequencies.

An SSE was done using one successful run for each input. The 93E's were done using input B.

The required response soectra (P5.5) for the 03E's and the SSE's are shown in figures 5.3 and 5.4 '

respectively.

Prior to the start of testing, cal'ibrations 'were recorded for "all accelercreters, and pressure was applied to all the test and reference units.

Test units AU-1 and AW-2 were tested at'2250 PSIG.

Test unit AX-1 was tested at 2700 psig static pressure with 462 in.

H,'

U.C. differential.

Test Unit AX-2 was tested at 1303 7513 static i

.. A.

pressure with 342 in..W.C.* differential

... - q. _

,,. During a series of runs, measurements were made of the output,

of each test ur.it and reference using a digital volt-meter.

c Measurements were made at the baginning and end of the snries

., s and in between each run.

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_ Test Results

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unit Ah'-2 5enn to tenave arre:ically.

Operation fro.T. O to 5:1 of spin appei. red nomal, but above 50% of input pressere, tne output went to 29 ma. The electrical leads were disc:nnected and resistance 1

o grounc checks were made.

Everything appeared nomal.

The electrical leads were reconnected and the unit behaved normally cvar its entire ir.put span. The test then resumed.

All units remain ope. rational throughout the test Tabla 5.1'

.s'ives' pe maximum erron duri5g the OBE's and the SSE's.

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RIGH TEMSERATURE STEAM E.T!IR3P.ENT h

.1 T?stFacibty Tnt int K; conductad at EDARSD, Fore t Hills site. Tnis faci s. ;y aas the capability of perforniac a high temcerature, saturated staam test sini.tsr.eously with a caustic chemicci spray environment.

Up tc.three transnitters may be tested in any one of three autoclaves.

The test units can be tested whil,e operating at static and differential pressure.

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I 6.2 Test Set-Do

. Test urlits AV-1 and Ak'-2 wera installed in test chambar B anc test -

units AX-J cnd AX-2 were installed in test chancer C as shown in figure 6.1.

Pressuie lines were connected to the test units,

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and te the same type of pressure regulating equipment as was used for the Radiatior. Test.

"The electrical lead wires were brcught cut of the tes't chamber through a conax seal gland.

The lead wires were then connected to an instrumentation 1 cop consisting of a WISD 7300 N!.P card and a i

500 ohm series resistance. Data acquisition. equipment received its signal from across a 100 ohm resistor.

Data acquisition consisted of Texas Instruments recorders in parallel sith a ' Fluke digital data.loggdr. Transmitter outputs as well as reference transducers were recorded.

'g Chamber temperature was monitored in two 'n.ys.

There were two fast response type X t%racco oies, one located l' inefi from the surface of each test unit in the chamber.

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recorded on the analog recorcer and as millivolt signals on the datalogger. The average of these signals was used for the cha.iber rise time. Also, there was a slower response type K thernocouple.

which sensed chambar temperature. This output was. recorded by the

- datalogger.and shown as degree Fahrenheit.

Chamber pressure was sensed by a transducer.

Its cutput was recorded by both the analcg recorders,ar.d the datalogger.

6.3 Test Procedure

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After the transmi'tters were installed in tha test chamber, an 11-L point calibration check was run to verify Ina operability of all equipment.

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two week pos{-accidegt accelgw s at Nu r. period at 220ff is meant ated igg l

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~6.4 Test Results

. Graphs of test unit errcr versus time are shown as figure 6.3 for test units AX-1 & 2 and figure 6.4 for test units AW-1 & 2.

These graphs are for the first 24 hot.rs of the test. The errer l

shown is percent of span change in the test ' unit minus the percent of span change in the reference unit. The span used being the calibrated spar. of the test unit. The graphs also show

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chamber temperature versus time.

During the 21-point c'alibration check that was done in cetween the seismic test and the 5 team test, test unit AW-2 again behaved erratically.

Data taken from this unit shows that it continued to behave erratically during the steam test, with the output generally staying higher than nomal. At fourteen days it.to the test, the cutput suddenly went low. When the unit was put through a calibration check after th'e termination of the test, it did not

. respond at all.

h The output signal from test unit AX-2 went high at 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> into

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the test. At the conclusion of tne first 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of the test.

the chamber was cooled do.wn and opened. At this point, the test unit was operating again.

Inspection of the unit revealed evidence of steam leakage through the conax seal into the tem,inal erea of the transmitter.

There was also evidence that condensation' hac gotten under the kapton insulation of the lead wires in an drea just outside of the conax seal.- The terminal area was then

' cleaned out and more RTV sealant was applied around the area of the conax seal. The test was restarted for the 2 week agin1 period at 220*F.

Tne output of the unit again went high after three days' and

' remained there for the rest of the test.

When ths unit was put tnrough a calibration check after the termination of the test, it did not respond at all.

Its output remained at 2.9.3 ma.

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The output signal f' rom test unit AX-l went high after 8 days of

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l testing. The signal periodically returned to normal until after 12 days when it remained high for the rest df the test. When this unit was put through a calibration check after the terminaticn of i

the test, it did not respond.' Its output remained at 25.E ma.

,T(st unit AW-1 remained functional throughout the test. -

Maximum and mir.imum errors exhibited by the test units (prior to l

failure for AX-1 and AX-2) dt. ring the two weak agin; period at Q

220'F are shown in table 6.1.

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. EP's0RS Ct,2.ING Pr.ST-ACCIDENT AGING PERIOD M3ximum Error Mininum Error A'J-l

+2.2

-1.1 AW-2

,. ~.

AX-1

+2.6

+0.4-AX-2

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-4.1 NOTE:

Errors are in % calibrated scan s.

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7.5 CONCLUSION

S h

Geuric urafc mar e scecificaticns f;r WPi!RSD suonliad transmit"a.s 2.r: 323ec on reo,uirements for specific fur.ctions. What follows is a comsarison of the performar.ca specificatior.s wit'1 the test data fcr the test umt that woalo be used for that function.

Pressurizer Pressure The specification is i10% accuracy for short term reactor trip functions durinc a loss of ecclart accident (LOCA).

Th'e test unit applicab'.e to thi.; function is A4-1 (1700 - 2500 PSIG).

' During the steam test AW-1 showed an error of -23% to-+3% with -10%

being due to chamber pressure.

During~ radiation, the. test unit showed-a' maximum error of approximately + 50% with errcrs of +10 to +20% withir the first few minutes.

WPWRSD cannot conclude that'the errors for this test unit woulc ae within +10% for the combined effects of radiatior, and steam. Also, Rssemoan:

has indicated t:-at the radiation errors due to the dose rate mient hava been ooserved.in the results f om arg o# magnitude would s.,a proportionai to me turn-dow the test ug Pressurizer'Lcvel The' specifications for this function are +1C% ace. racy for she-t tam h

safety injection initiation following a LOCA or si.eam-line breu accident and 125% accuracy for long term monitoring. The test unit applicable to this function is AX-2 (475-210 in. W.C.).

This unit would meet the 110% requirement with a qualification due to the uncertair.ty in the effects of radiation as shown by AW-1.

AX-2 exhibitec a large error (+28%) during the first neur of tne test an0had two failures, the first of which was cartaini,v due to leakage of the cenax seal.

.Not enough data is available fro.T. these tests to say what the effects would be due to a lower dose rate as in a steam-line break acci&nt.

Steam Flow The specific $ tion for th~is functicn is 110% accuracy during a staam-line break accident.

Either AX-1 or AX-2 could be used in this function.

These test units appear ' adequate for short term trip functions.

!!o data is availaole on the effects of the lower radiation dose rate seen

~

~

during a steam line break accident.

f..

=

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4,w-10% accuracy during afunctions -

t

, g.n rator Level monitoring AX-2 is function is 125% accuracyident.

fcr Test unit Steam Gene feed-line break accidenspecffication for t and 1 steam-line break'acc The ion.

following a LOCA orused for this functas for fcnctions vel apply.

would be re PSIG) m Wide Rance Pressu for inonitoring ments 0

Reactor Coolant' is function is 110%Tast uni co The same Syste

)-

specification for thbreak accident.

following a steam-line used for this function. unit were unaccepc ble.

The would be

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Kasults from this tes:

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